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The aim of this study was to construct a magnetized detachable catalyst (MDC) of Ag-decorated Fe3O4 nanocomposites and evaluate their antibacterial efficacy and photocatalytic capabilities. The results showed that the Ag-decorated Fe3O4 nanocomposites displayed exceptional antibacterial efficacy towards Pseudomonas aeruginosa and high photocatalytic capabilities towards organic hue inhibition. The kinetics investigation revealed that the Ag@ Fe3O4 nanocomposites eradicated 99.9% of Rhodamine B at a rate variable of 1.89 min−1. The magnetically detachable catalyst was found to be reusable without affecting the efficiency of photocatalytic reactions. These findings suggest that the Ag@Fe3O4 nanocomposites have promising applications in wastewater treatment and biomedical research. [ABSTRACT FROM AUTHOR]

Today, the cement industry has gone through a growing trend. Achieving the country’s economic development, social development, and cultural development goals is essential. However, in line with these benefits, the environmental damage caused by cement factories is inevitable. In the present research, which was carried out to reduce environmental losses, value flow mapping and simulation by Arena software were used in two stages. It was determined in the first stage using the current simulated situation and the waste and environmental pollution created. Then by redrawing the future value flow map and using experts’ opinions, the amount of reduced pollution caused by some measures was estimated. Then, in the second stage a new simulation was done to evaluate the reduced environmental pollution. The results of this research showed that by using the methods mentioned above in the primary production line process of the cement company, about 30% of waste and pollutions were reduced. [ABSTRACT FROM AUTHOR]

The development of effective bioactive compounds is a cornerstone of medicinal chemistry, with 1,4-dihydropyrimido[1,2-a]benzimidazole derivatives emerging as promising candidates due to their potential antimicrobial properties. This study is devoted to the synthesis of these derivatives using microwave-assisted methods, which offer several advantages over traditional synthesis, including shorter reaction times, higher yields, and greener conditions. We employed microwave irradiation to synthesize a series of 1,4-dihydropyrimido[1,2-a]benzimidazole derivatives, optimizing the reaction conditions to enhance efficiency. The synthesized compounds were rigorously characterized using mass spectrometry, IR, 1H NMR, and 13C NMR spectroscopy. Their antimicrobial and antifungal activities were assessed against a range of microorganisms, including gram-positive and gram-negative bacteria as well as fungal strains. The minimum inhibitory concentration (MIC) values were determined to evaluate their efficacy. The study demonstrated that microwave-assisted synthesis significantly improves the efficiency of producing these bioactive derivatives and revealed that several compounds exhibit noteworthy antimicrobial and antifungal activities, highlighting their potential as new therapeutic agents. [ABSTRACT FROM AUTHOR]

Iron oxide (Fe3O4) nanoparticles were synthesized via an eco-friendly green approach by adding Phoenix dactylifera extract to the aqueous solution of ferric chloride. The effect of annealing temperature (Ta) (100-150) °C on particle size was studied. X-ray diffraction (XRD), UV-visible spectroscopy, atomic force microscopy (AFM), and field emission scanning electron microscopy (FESEM) were used to evaluate the produced nanoparticles. According to XRD spectra, the crystallite size of the samples was determined using the Scherrer formula. AFM and FE-SEM were used to determine surface morphology. A UV-Vis optical spectroscopic examination was carried out to determine the band gap energy of the iron oxide nanoparticles. It was found that with the increased temperature from 100 to 150°C, the band gap energy of the produced Fe3O4 NPs decreased. The size of the produced particles increased with increasing temperature, as evidenced by AFM and XRD spectra. [ABSTRACT FROM AUTHOR]

Biosynthesis of metal oxide nanoparticles via the green approach is an effective and eco-friendly method. The proposed investigation is focused on Zinc oxide nanoparticles (ZnO-NPs) synthesis from methanolic extract of Lawsonia inermis L. seeds. The seed extract contains phytoactive compounds which act as a reductant and stabilizer for the biosynthesis of ZnO-NPs followed by calcination. ZnO-NPs are characterized by different analytical techniques which provide information regarding its surface morphology, the average crystallite size (19 nm), estimation of the functional group involved in nanoparticles (NPs) synthesis. Gas chromatography-mass spectroscopy is helpful in the investigation of variant phytoactive compounds in the methanolic plant extract. UV-visible absorption spectra at 400 nm substantiate the formation of ZnO-NPs. ZnO-NPs is applicable in a wide range which includes fabrication of biosensor, optoelectronics, bio-medicals, etc. [ABSTRACT FROM AUTHOR]

An innovative, meticulously crafted, targeted, expeditious, precise, and cost-effective methodology was pioneered utilizing UV-Vis spectrophotometry for the quantitative determination of Mirabegron in both its pristine state and pharmaceutical tablet formulation. Following thorough deliberation on factors such as solubility, stability, toxicity, and carcinogenicity, petroleum ether emerged as the solvent of choice, aligning with the principles of environmentally conscious methodology. The absorption maxima were unequivocally detected at a wavelength of 250 nm, making petroleum ether the solvent of choice. The method adheres faithfully to Beer's law within a concentration range spanning from 0.004 to 0.016 mg/mL, boasting a remarkable correlation coefficient of 0.9945. LOD and LOQ were meticulously computed from the dataset, yielding values of 0.0001663 and 0.0005039, respectively. The relative standard deviation, meticulously derived from the dataset, stands at less than 2%. Moreover, in the rigorous accuracy assessment, Mirabegron's recovery percentage fell impressively within the narrow band of 98.62 to 101.46%. During both the intraday and interday precision evaluations, the %Assay remained consistently within the stringent range of 99.63 to 101.12%, affirming the method's precision. Furthermore, adherence to the rigorous guidelines outlined in ICH Q2 (R1) was ensured throughout the comprehensive validation process, consolidating the method's credibility and suitability for analytical applications. [ABSTRACT FROM AUTHOR]

4-Chlorophenylhydrazine hydrochloride (4-CPH) is a crucial intermediate in organic synthesis, utilized in various applications including the production of Carprofen and wastewater treatment. This study focuses on the synthesis and impurity analysis of 4-CPH on green approach, with particular emphasis on the detection and quantification of positional isomers 2-Chlorophenylhydrazine hydrochloride (2-CPH), 3-Chlorophenylhydrazine hydrochloride (3- CPH), and 4-Chloroaniline. A high-performance liquid chromatography (HPLC) method was developed using a Waters X-Bridge C18 column and optimized for resolution and sensitivity. The method demonstrated effective separation, with detection limits for 2-CPH, 3-CPH and 4-Chloroaniline at 0.02%, 0.04%, and 0.02% respectively. The validated HPLC method provides reliable analysis for the quality control of 4-CPH, ensuring low impurity levels in the final product. [ABSTRACT FROM AUTHOR]

In this study, the environmentally friendly friction stir processing (FSP) method was utilized to fabricate surface composites employing technical aluminum matrix 1050-H14 and aluminum alloy 6060-T4 reinforced with silicon carbide (SiC) particles. Microstructure analysis, employing light and scanning electron microscopy, in conjunction with comprehensive evaluations of hardness, compressive strength, and tribological properties, was conducted to elucidate significant findings. The results reveal that an augmented number of FSP passes contributes to the homogenization of microstructure, leading to the alteration of SiC particle morphology and fragmentation. Consequently, this phenomenon results in improved mechanical properties, particularly noteworthy in the case of AA6060-T4 alloy matrix composites, and enhanced wear resistance. Both AA1050-SiC and AA6060-SiC composites demonstrate notable increases in compressive strength compared to their unreinforced matrices. Particularly noteworthy is the substantial enhancement in compressive strength observed in the AA6060-SiCp composite, escalating from 249 to 331 MPa (at ε = 0.1) and from 398 to 715 MPa (at ε = 0.2) with an increase in the number of FSP passes. Additionally, FSP's ability to precisely control process parameters such as tool rotational speed and traverse speed allows for the optimization of mechanical properties and microstructural characteristics tailored to specific application requirements. This study highlights the potential of FSP in fabricating high-performance aluminum matrix composites with superior strength and wear resistance, positioning it as a viable technique for advanced engineering applications. The environmentally friendly nature of FSP, due to its solid-state operation and reduced energy consumption, further underscores its suitability for sustainable manufacturing practices. [ABSTRACT FROM AUTHOR]

Carotenoids are high added-value products primarily known for their intense coloration and high antioxidant activity. They can be extracted from a variety of natural sources, such as plants, animals, microalgae, yeasts, and bacteria. Gordonia alkanivorans strain 1B is a bacterium recognized as a hyper-pigment producer. However, due to its adaptations to its natural habitat, hydrocarbon-contaminated soils, strain 1B is resistant to different organic solvents, making carotenoid extraction through conventional methods more laborious and inefficient. Ionic liquids (ILs) have been abundantly shown to increase carotenoid extraction in plants, microalgae, and yeast; however, there is limited information regarding bacterial carotenoid extraction, especially for the Gordonia genus. Therefore, the main goal of this study was to evaluate the potential of ILs to mediate bacterial carotenoid extraction and develop a method to achieve higher yields with fewer pre-processing steps. In this context, an initial screening was performed with biomass of strain 1B and nineteen different ILs in various conditions, revealing that tributyl(ethyl)phosphonium diethyl phosphate (IL#18), combined with ethyl acetate (EAc) as a co-solvent, presented the highest level of carotenoid extraction. Afterward, to better understand the process and optimize the extraction results, two experimental designs were performed, varying the amounts of IL#18 and EAc used. These allowed the establishment of 50 µL of IL#18 with 1125 µL of EAc, for 400 µL of biomass (cell suspension with about 36 g/L), as the ideal conditions to achieve maximal carotenoid extraction. Compared to the conventional extraction method using DMSO, this novel procedure eliminates the need for biomass drying, reduces extraction temperatures from 50 °C to 22 ± 2 °C, and increases carotenoid extraction by 264%, allowing a near-complete recovery of carotenoids contained in the biomass. These results highlight the great potential of ILs for bacterial carotenoid extraction, increasing the process efficiency, while potentially reducing energy consumption, related costs, and emissions. [ABSTRACT FROM AUTHOR]

The synthesis of Al-ZnO nanoparticles (NPs) was achieved using a green synthesis approach, utilizing leaf extract from Anisomeles indica (L.) in a straightforward co-precipitation method. The goal of this study was to investigate the production of Al-ZnO nanoparticles through the reduction and capping method utilizing Anisomeles indica (L.) leaf extract. The powder X-ray diffraction, UV spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy with EDAX analysis were used to analyze the nanoparticles. X-ray diffraction analysis confirmed the presence of spherical structures with an average grain size of 40 nm in diameter, while UV–visible spectroscopy revealed a prominent absorption peak at 360 nm. FTIR spectra demonstrated the presence of stretching vibrations associated with O-H, N-H, C=C, C-N, and C=O as well as C-Cl groups indicating their involvement in the reduction and stabilization of nanoparticles. SEM image revealed the presence of spongy, spherical, porous agglomerated nanoparticles, confirming the chemical composition of Al-ZnO nanoparticles through the use of the EDAX technique. Al-ZnO nanoparticles showed increased bactericidal activity against both Gram-positive and Gram-negative bacteria. The antioxidant property of the green synthesized Al-ZnO nanoparticles was confirmed by DPPH radical scavenging with an IC50 value of 23.52 indicating excellent antioxidant capability. Green synthesized Al-ZnO nanoparticles were shown in in vivo studies on HeLa cell lines to be effective for cancer treatment. Additionally, α-amylase inhibition assay and α-glucosidase inhibition assay demonstrated their potent anti-diabetic activities. Moving forward, the current methodology suggests that the presence of phenolic groups, flavonoids, and amines in Al-ZnO nanoparticles synthesized with Anisomeles indica (L.) extract exhibit significant promise for eliciting biological responses, including antioxidant and anti-diabetic effects, in the realms of biomedical and pharmaceutical applications. [ABSTRACT FROM AUTHOR]

Over the past few years, there has been an increasing fascination with environmentally conscious techniques for the synthesis of nanoparticles, due to the drawbacks associated with conventional methodologies. These conventional methods frequently depend on the utilization of hazardous chemical substances and yield substantial waste, resulting in detrimental ecological contamination. As a result, alternative strategies utilizing plants and microorganisms such as bacteria, fungi, algae, and their metabolites have gained attention. Microbial pigments (MPs) have gained significant attention in recent years due to their versatile bioactivities. This field of research combines the unique properties of MPs with the diverse applications of metal nanoparticles (MNPs), resulting in a range of promising outcomes. In microbial pigment-mediated nanoparticles (MP-MNPs) synthesis, the biological activities, chemical diversity of pigments, solubility in aqueous medium, lower reaction time, and renewable energy account for high rate of MNPs synthesis with divers shapes and sizes along with corresponding applications. Furthermore, it mitigates the use of harmful chemicals and reduces the generation of waste associated with conventional methods. However, care has to be taken to select suitable MPs for MNPs synthesis, such as in terms of solubility, stability, non-toxicity, and extraction of pigment. This review focuses on the utilization of MPs in the fabrication of MNPs, discussing the possible mechanisms and applications of the synthesized nanoparticles. The advantages and limitations of the microbial pigment-mediated synthesis of different MNPs are also summarized in this review. [ABSTRACT FROM AUTHOR]

Deposition inside sugarcane factory evaporators (SFE) significantly lowers the heat transmission and can cause corrosion. This consequently reduces their efficiency, which is clearly a severe issue in the industrial sector. Up to the present time, caustic soda remains the most widely used reagent for descaling sugar industry evaporators. Understanding the scale's composition assists in determining which kinds of cleaners can effectively clean the evaporators. Scales are built in sugar evaporators as a result of the phosphitation or sulfitation processes used to chemically clean juice. In this perspective, molasses is used to descale SFE as a green manner. Molasses includes significant amounts of organic acids and nitrogenous chemical compounds, as shown by GC-mass analysis, and can be utilized as cleaning agents. XRD patterns for four scales from different sugar evaporators indicated that calcium sulfate and calcium phosphate were the predominant components at Egypt's Quos Sugarcane Factory and Dishina Sugarcane Factory, respectively. Actually, dispersed molasses demonstrated an acceptable removal effectiveness of up to 65% in all tested evaporative bodies. Furthermore, molasses solutions were tested in both basic and acidic settings and did not promote corrosion through the body's evaporative tubes. The oxidation of the molasses mixture with air or hydrogen peroxide showed that the efficacy of scale removal decreased. The findings suggested that molasses, as byproduct of sugarcane factories can be successfully employed in descaling as a green cleaning agent. This could be helpful in the development of descaling materials for the industrial sector. [ABSTRACT FROM AUTHOR]

The electromagnetic radiation from microwave irradiation has been widely employed as a heating source in various significant organic transformations over the past two decades. The method, without adding any solvent while tied to microwave treatment, is acompletely environmentally benign platform with conspicuous advancements and has resulted in copious advantages with regards to rate of reaction and yield of the products compared to the other classical techniques. Therefore, in this review, we have attempted to summarize some recently developed organic reactions based on microwave-radiated solvent-free protocols, which would be very efficient for academic and industrial use without affecting the principles of green chemistry.

Recently, a significant focus has been on producing green nanomaterials as an environmentally sustainable to various environmental issues. These nanomaterials have shown promise in addressing problems, such as reducing harmful microorganisms. A potential strategy for their creation involves using bio-polysaccharides, which are cost-effective and readily available ingredients. In a recent study, researchers utilized bio-polysaccharides strychnos potatorum to synthesize iron nanoparticles through an in-situ bio-reduction process. Bio-polysaccharides acted as effective reducing, stabilizing, and capping agents during the production of iron nanoparticles (SP-FeNPs). Different characterization techniques, such as UV-Visible spectroscopy, FT-IR, XRD, FE-SEM, DLS, XPS, and TEM were employed to analyze the SP-FeNPs. As indicated by TEM micrographs, the uniform and spherical-shaped NPs with an average mean diameter of 31.51 nm were observed. The antibacterial properties of biopolymer-based iron nanoparticles (SP-FeNPs) were investigated against Salmonella and Bacillus species. This approach demonstrates a positive environmental impact and offers a rapid and green synthesis route, making it an attractive and efficient method for FeNP production. This synthesis pathway meets all the criteria for a fully green chemical reaction, as it utilizes a polysaccharide that is energy-efficient, cost-effective, non-harmful to human health and the environment, yields reliable products, and generates minimal waste. This environmentally friendly technology has the potential to compete with conventional physical and chemical methods employed for FeNPs synthesis. [ABSTRACT FROM AUTHOR]

A proficient technique utilizing core–shell structured Fe3O4@MgO nanocatalyst for the synthesis of β-naphthol condensed 1,3-oxazinone derivatives through a one-pot condensation reaction of aldehyde, urea, and β-naphthol in the presence of K2CO3 and Fe3O4@MgO nanoparticles in PEG-400 is presented. This technique provides numerous benefits, such as high yields, unaltered reactions, quick responses, reusability of the catalyst, and an uncomplicated workup technique. PEG-400 was the most effective solvent among the variety of solvents investigated for this system. In addition, polyethylene glycol (PEG) can enhance the stability of nanoparticles against oxidation, improving catalyst efficiency. This results in a more ecologically sound and sustainable protocol. [ABSTRACT FROM AUTHOR]

Silver nanoparticles (AgNPs) possess unmatched chemical, biological, and physical properties that make them unique compounds as antimicrobial, antifungal, antiviral, and anticancer agents. With the increasing drug resistance, AgNPs serve as promising entities for targeted drug therapy against several bacterial, fungal, and viral components. In addition, AgNPs also serve as successful anticancer agents against several cancers, including breast, prostate, and lung cancers. Several works in recent years have been done towards the development of AgNPs by using plant extracts like flowers, leaves, bark, root, stem, and whole plant parts. The green method of AgNP synthesis thus has several advantages over chemical and physical methods, especially the low cost of synthesis, no toxic byproducts, eco-friendly production pathways, can be easily regenerated, and the bio-reducing potential of plant derived nanoparticles. Furthermore, AgNPs are biocompatible and do not harm normally functioning human or host cells. This review provides an exhaustive overview and potential of green synthesized AgNPs that can be used as antimicrobial, antifungal, antiviral, and anticancer agents. After a brief introduction, we discussed the recent studies on the development of AgNPs from different plant extracts, including leaf parts, seeds, flowers, stems, bark, root, and whole plants. In the following section, we highlighted the different therapeutic actions of AgNPs against various bacteria, fungi, viruses, and cancers, including breast, prostate, and lung cancers. We then highlighted the general mechanism of action of AgNPs. The advantages of the green synthesis method over chemical and physical methods were then discussed in the article. Finally, we concluded the review by providing future perspectives on this promising field in nanotechnology. [ABSTRACT FROM AUTHOR]

The implementation of the green energy transition by reducing reliance on fossil fuels has fueled the burgeoning demand for lithium‐ion batteries in grid‐level energy storage systems and electric vehicles. The growth of portable electronic devices has also contributed to this exponential demand, creating both logistical and environmental challenges in the supply of raw materials such as lithium and the management of end‐of‐life batteries. Current recycling methods for spent batteries are both energy‐intensive and inefficient. To address these issues, a green approach using organic acid mixtures has been proposed to reclaim lithium from spent cathodes and recover and purify graphite from spent anodes, while also regenerating its structure. The effectiveness of this method is demonstrated through the use of organic acid mixtures to leach and reclaim lithium from NCM 622 batteries. On the anode side, a curing–leaching strategy using organic acids is employed to purify spent graphite, which is subsequently calcined to enhance its interlayer structure conducive to better intercalation of Li+ and improve electrochemical performance. Additionally, recovered graphite is tailored with carbon using water bath carbonization to repair structural defects caused by lithium intercalation and improve electrochemical performance while augmenting the regenerated graphite's quality, equipping it to be reused in batteries or upcycled applications. [ABSTRACT FROM AUTHOR]

Purpose: The compatibility of any innovation and integration with environmental considerations is significant. Hence, the concept of green innovation through the promotion of environmental efficiency gives the organization a competitive advantage in the domestic and global markets. Therefore, in this research, the effect of green customer integration on green innovation performance considering the moderating role of company size and internal integration as a mediating variable of environmental awareness of the senior managers is investigated in the Bahman Company as a case study. Design/methodology/approach: This is typically an applied study in terms of the purpose of the research and is a descriptive survey in terms of the method of data collection and analysis. The statistical population included 425 personnel of the Bahman manufacturing company. Sampling has been done based on a simple random sampling method; and according to Cochran's formula, the sample size has been determined 200. The data and information needed to conduct the research have been collected through library studies and field methods. The data collection tool included a questionnaire containing 14 questions. To determine the validity of the present research questionnaire, the opinions of experts have been examined using the convergent and divergent validity indices. Also, the reliability of the questionnaire has been confirmed by computing the Cronbach's alpha coefficient. In this research, modelling and data analysis have been performed using Structural Equation Modelling (SEM) and the Amos software. Findings: The findings indicated that the integration of green customers has a significant positive effect on the performance of green innovation and the environmental awareness of senior managers. The environmental awareness of senior managers had a significant positive effect on the performance of green innovation. The mediating role of senior managers' environmental awareness and the moderating role of company size and internal integration were confirmed. The environmental awareness of senior managers had a significant positive effect on the performance of green innovation. Originality/value: The literature review indicated that in none of the previous studies, the parameters of environmental awareness of senior management, internal integrity, company size, green innovation performance, and green customer integrity have not been investigated simultaneously. The simultaneous use of such parameters gives a broader view. This is a significant feature that distinguishes the current study from previous studies. [ABSTRACT FROM AUTHOR]

Background: Cross-linked networks of polymers are referred to as hydrogels because they possess the ability to retain water within the interstitial spaces of the polymer chains. The fundamental building block of life is a polymer. Researchers' interest in polymers has expanded due to the widespread availability of polymers exhibiting desirable characteristics, a key factor in the development of contemporary healthcare products. The synthesis of hydrogels involves the integration of various natural polymers. In the realm of biomedical applications, hydrogels can be employed to deliver drugs or cells, regenerate both hard and soft tissues, adhere to moist tissues, halt bleeding, provide contrast during imaging, shield tissues or organs from radiation, and enhance the biological adaptability of therapeutic implants. These attributes render hydrogels advantageous for a diverse array of distinct and critical diseases and medical scenarios, as well as in less conventional fields such as environmental engineering. Objectives: The primary objective of this review is to explore the literature related to hydrogels. This includes the classification of hydrogels, examination of natural polymers such as collagen, inulin, pectin, alginate, tragacanth, lignin, and chitosan, which are employed in hydrogel synthesis. The review also covers the general preparation of hydrogels, the methodologies involved in their preparation, common techniques used in characterization, release kinetics, and the diverse applications of hydrogels. Conclusion: This research covers the study of natural polymers such as inulin, alginate, lignin, pectin, collagen, chitosan, and tragacanth, employed in the synthesis of hydrogels. The key areas of focus encompass the classification of hydrogels, procedures for hydrogel preparation, various methods for hydrogel characterization, in vitro and in vivo release kinetics of hydrogels, and the application of hydrogels prepared from specific natural polymers across diverse fields. [ABSTRACT FROM AUTHOR]

Abstract This investigation reported a one-step green synthesis of nickel oxide nanoparticles (NiO NPs) using aloe vera leaves extract solution for their application in a supercapacitor. This method used aloe vera leaves as a reducing agent, which is very simple and cost-effective. The synthesized NPs were thoroughly characterized using various techniques. The X-ray diffraction analysis unequivocally confirmed the crystalline nature; field emission scanning electron microscopy and transmission electron microscopy images showed different shapes and forms of an agglomerated cluster of synthesized NPs. The absorption spectra were recorded from UV visible spectroscopy, while Fourier transform infrared spectroscopy provided insights into the functional groups present. Electrochemical assessments were carried out via cyclic voltammetry, galvanostatic charging-discharging and electrochemical impedance spectroscopy. These experiments were performed using a 2 M KOH electrolyte within a 1.0 V potential window. Impressively, the single electrode displayed a remarkable specific capacitance of 462 F g−1 at a scan rate of 1 mV s−1 and 336 F g−1 at a current density of 0.76 A g−1. Further, a symmetric two-electrode device (NiO||NiO) has been successfully fabricated by employing a separator between the electrodes. The device exhibited an exceptional specific capacitance of approximately 239 F g−1, along with an energy density of 47.8 Wh kg−1 and a power density of 545 W kg−1 at 1 A g−1 current density within a 1.2 V potential window. The fabricated device also shows a retention capacity of 89% at 10 A g−1 after 2000 cycles with 114% of columbic efficiency. The present study underscores the effectiveness of the green synthesis approach in producing NiO NPs and establishes their potential as highly promising candidates for supercapacitor applications, showcasing both excellent electrochemical performance in a three-electrode system and remarkable stability in a practical two-electrode device. The results collectively highlight the efficacy of the green approach in producing NiO NPs, establishing its potential as a highly promising candidate for supercapacitor application.

A latex blend comprising polyurethane dispersion (PUD) and carboxylated nitrile butadiene rubber (XNBR) in an 80:20 ratio was prepared in the presence of epoxide and organo-modified siloxane crosslinkers. The aim of the study was to enhance the tensile, thermal, and chemical properties of the PUD/XNBR latex blend without the incorporation of sulphur and accelerator. Studies revealed that the combined action of epoxide and organo-modified siloxane crosslinker demonstrated adequate intermolecular hydrogen bonding, thereby resulting in superior tensile strength. Differential scanning calorimetry (DSC) analysis showed alterations in chain orientation and melting enthalpy due to the introduction of two crosslinkers that impart ordered hydrogen bonding to a certain degree. The compactness of the structure of the cure molecule may be closely related to the heating enthalpy, as in the following sequence, PUD80/XNBR20/E1 will have a loosely packed structure, followed by PUD80/XNBR20/E0.5S0.5 and PUD80/XNBR20/S1. Chemical swelling studies revealed the impact of crosslinker combinations on hydrogen bonding (both ordered and disordered), affirming the consequential enhancement in chemical resistance. This study confirms that the attained intermolecular hydrogen bonding results in desirable mechanical and chemical resistance performance, making the latex blend suitable for glove applications.

This investigation reported a one-step green synthesis of nickel oxide nanoparticles (NiO NPs) using aloe vera leaves extract solution for their application in a supercapacitor. This method used aloe vera leaves as a reducing agent, which is very simple and cost-effective. The synthesized NPs were thoroughly characterized using various techniques. The X-ray diffraction analysis unequivocally confirmed the crystalline nature; field emission scanning electron microscopy and transmission electron microscopy images showed different shapes and forms of an agglomerated cluster of synthesized NPs. The absorption spectra were recorded from UV visible spectroscopy, while Fourier transform infrared spectroscopy provided insights into the functional groups present. Electrochemical assessments were carried out via cyclic voltammetry, galvanostatic charging-discharging and electrochemical impedance spectroscopy. These experiments were performed using a 2 M KOH electrolyte within a 1.0 V potential window. Impressively, the single electrode displayed a remarkable specific capacitance of 462 F g−1 at a scan rate of 1 mV s−1 and 336 F g−1 at a current density of 0.76 A g−1. Further, a symmetric two-electrode device (NiO||NiO) has been successfully fabricated by employing a separator between the electrodes. The device exhibited an exceptional specific capacitance of approximately 239 F g−1, along with an energy density of 47.8 Wh kg−1 and a power density of 545 W kg−1 at 1 A g−1 current density within a 1.2 V potential window. The fabricated device also shows a retention capacity of 89% at 10 A g−1 after 2000 cycles with 114% of columbic efficiency. The present study underscores the effectiveness of the green synthesis approach in producing NiO NPs and establishes their potential as highly promising candidates for supercapacitor applications, showcasing both excellent electrochemical performance in a three-electrode system and remarkable stability in a practical two-electrode device. The results collectively highlight the efficacy of the green approach in producing NiO NPs, establishing its potential as a highly promising candidate for supercapacitor application. [ABSTRACT FROM AUTHOR]

Green synthesis of silver nanoparticles (AgNPs) from Hibiscus sabdariffa (HS) and cytotoxicity was performed. The characteristic UV-Vis. absorption maximum of the material was found at 426 nm. Energy dispersive X-ray analysis ensures the presence of elemental silver. The X-ray diffraction confirms the formation of a face-centered cubic crystal lattice of silver. The transmission electron microscopy along with XRD revealed the nano-dimension of the material (∼24 nm). The Fourier transform infrared analysis depicted the secondary structure of proteins and amino acids in the leaf extract as responsible factors for the reduction of Ag+ to form biomolecules encapsulated stable AgNPs. The results of the cell viability study showed that HSAgNPs didn't bring out any cytotoxicity in PC12 cells until 10 ppm for 48 h of incubation of the nanoparticles, which was further confirmed by the lactate dehydrogenase assay. Thereby, this study may encourage the low-cost production of green-AgNPs and their safe usages. [ABSTRACT FROM AUTHOR]

In this article, we described synthesis of 1,3‐thiazolidine ‐ amide hybrid derivatives by two different methods from (S)‐2‐amino‐3‐(4‐(benzyloxy)phenyl)‐1‐(thiazolidin‐3‐yl)propan‐1‐one (4). In first method, catalytic amidation was carried out under microwave irradiation using Ceric Ammonium Nitrate (CAN) as a green catalyst where as in second conventional method; CDI was used as a significant coupling reagent to optimize reaction condition and yield of product. All new compounds were well characterized by 1H NMR, 13C NMR, IR and ESMS spectral techniques and evaluated in vitro antibacterial and antifungal activity. The molecular docking study revealed that the designed compounds snuggly fit in the active site of 4WMZ protein. In addition, the QSTR study of new compounds were carried out with the help of Toxicity Estimation Software Tool (T.E.S.T). The results showed slight toxic nature of new compounds. In‐silico ADME studies significant values of pharmacokinetic parameters and demonstrated good drug like characteristics based on Lipinski's rule of five. [ABSTRACT FROM AUTHOR]

Green approach on wastewater treatment strategies aims to promote sustainable and environmentally friendly methods for treating wastewater while also reducing the environmental impact of traditional wastewater treatment processes. Hence, the objective of this paper was to undertake a critical review of green approach on wastewater treatment strategies using standard techniques of harvesting data from secondary sources from 2015 to 2023. Information obtained reveals that energy-efficient treatment technologies, such as anaerobic digestion and membrane bioreactors, use less energy than traditional treatment technologies. Treating wastewater for reuse can reduce the demand for freshwater resources and the energy required for water treatment. Onsite wastewater treatment systems, such as septic systems and composting toilets, can reduce the amount of wastewater that needs to be transported and treated at centralized facilities. Incorporating green infrastructure, such as rain gardens and permeable pavement, into urban areas can help reduce the amount of stormwater runoff that enters the wastewater treatment system. Extracting nutrients, such as nitrogen and phosphorus, from wastewater can be used as a fertilizer for crops, reducing the need for synthetic fertilizers. Overall, these green wastewater treatment strategies aim to reduce the energy consumption, chemical usage, and environmental impact of traditional wastewater treatment processes, while promoting sustainable and efficient use of resources [ABSTRACT FROM AUTHOR]

The evolution and rapid spread of multidrug-resistant (MDR) bacterial pathogens have become a major concern for human health and demand the development of alternative antimicrobial agents to combat this emergent threat. Conventional intracellular methods for producing metal nanoparticles (NPs) using whole-cell microorganisms have limitations, including binding of NPs to cellular components, potential product loss, and environmental contamination. In contrast, this study introduces a green, extracellular, and sustainable methodology for the bio-materialization of silver NPs (AgNPs) using renewable resource cell-free yeast extract. These extracts serve as a sustainable, biogenic route for both reducing the metal precursor and stabilizing the surface of AgNPs. This method offers several advantages such as cost-effectiveness, environment-friendliness, ease of synthesis, and scalability. HR-TEM imaging of the biosynthesized AgNPs revealed an isotropic growth route, resulting in an average size of about ~ 18 nm and shapes ranging from spherical to oval. Further characterization by FTIR and XPS results revealed various functional groups, including carboxyl, hydroxyl, and amide contribute to enhanced colloidal stability. AgNPs exhibited potent antibacterial activity against tested MDR strains, showing particularly high efficacy against Gram-negative bacteria. These findings suggest their potential role in developing alternative treatments to address the growing threat of antimicrobial resistance. Additionally, seed priming experiments demonstrated that pre-sowing treatment with AgNPs improves both the germination rate and survival of Sorghum jowar and Zea mays seedlings. Key points: •Yeast extract enables efficient, cost-effective, and eco-friendly AgNP synthesis. •Biosynthesized AgNPs showed strong antibacterial activity against MDR bacteria. •AgNPs boost seed germination and protect against seed-borne diseases. [ABSTRACT FROM AUTHOR]

Nanoparticles (NPs) are conventionally produced by using physical and chemical methods that are no longer in alignment with current society's demand for a low environmental impact. Accordingly, green synthesis approaches are considered a potential alternative due to the plant extracts that substitute some of the hazardous reagents. The general mechanism is based on the reducing power of natural products that allows the formation of NPs from a precursor solution. In this context, our study proposes a simple, innovative, and reproducible green approach for the synthesis of titanium dioxide (TiO2 NPs) that uses, for the first time, the major component of green tea (Camellia sinensis)—epigallocatechin-3-gallate (EGCG), a non-toxic, dietary, accessible, and bioactive molecule. The influence of EGCG on the formation of TiO2 NPs was analyzed by comparing the physicochemical characteristics of green synthesized NPs with the chemically obtained ones. The synthesis of bare TiO2 NPs was performed by hydrolysis of titanium isopropoxide in distilled water, and green TiO2 NPs were obtained in the same conditions, but in the presence of a 1 mM EGCG aqueous solution. The formation of TiO2 NPs was confirmed by UV-VIS and FTIR spectroscopy. SEM micrographs showed spherical particles with relatively low diameters. Our findings also revealed that green synthesized NPs were more stable in colloids than the chemically synthesized ones. However, the phytocompound negatively influenced the formation of a crystalline structure in the green synthesized TiO2 NPs. Furthermore, the synthesis of EGCG–TiO2 NPs could become a versatile choice for applications extending beyond photocatalysis, including promising prospects in the biomedical field. [ABSTRACT FROM AUTHOR]

The environmental dimension of sustainable development was one of the topics that attracted the attention of scholars in the field of international relations, in light of the increasing modern ecological problems and crises that cross national borders, which stand as a major obstacle to achieving sustainable development for countries and societies. Environmental justice, and referred to the unequal distribution of environmental risks, and employed concepts, such as environmental injustice, and environmental security, as well as its normative vision of issues of sustainable development and modernity. [ABSTRACT FROM AUTHOR]

An ultrasonic irradiation-assisted green approach was developed for the facile preparation of xanthenones and chromenopyrimidinediones using copper chromite nanoparticles (CuCr2O4 NPs) as an efficient heterogeneous catalyst. The desired products were formed by a one-pot three-component reaction of aromatic aldehydes, 3,4-methylenedioxyphenol, and C-H activated acidic compounds including dimedone and 1,3-dimethylbarbituric acid. Various aromatic aldehydes extended the scope and generality of the presented route. Using water as green and nonvolatile solvent and ultrasonic irradiation as an innocuous energy resource, high yields of products within a short reaction time increase the current protocol's economic and environmental superiority. Compounds were evaluated for their antimicrobial inhibition against some selected Gram-positive and Gram-negative bacterial strains. The results showed that the growth of Gram-positive bacteria was highly inhibited by only compounds 5a, 5b, 6d, and 6e, while the rest of test compounds show moderate effects on microbial growth. All test compounds, aside compound 6d, did not display any remarkable growth inhibitory activity against the Gram-negative bacteria. The present study introduces a ground work for the application prospects of ultrasound-based novel, green, and sustainable method for the preparation of some xanthenone and chromenopyrimidinedione derivatives. Copper chromite nanoparticles have appeared as efficacious and reusable catalyst for ultrasonic irradiation treatment in the synthesis of the above-mentioned compounds. The present study establishes that several synthesized compounds show good antimicrobial effects against the standard Gram-positive bacteria Staphylococcus aureus and Streptococcus pyogenes and Gram-negative bacterium Serratia marescens. Due to the best of our knowledge for these previously known compounds, this study is the first report of their promising antimicrobial activity. [ABSTRACT FROM AUTHOR]

Surface-modified cellulose-based heterogeneously active catalyst was prepared by covalent anchoring of chlorosulphonic acid on amino-functionalized cellulose (SA@Cell-AEPC). The structure of synthesized catalyst was confirmed by analytical methods such as FT-IR, FE-SEM, EDX, TGA, XRD, TEM and CP/MAS 13C-NMR spectroscopy. The catalytic effect was evaluated for the formation of oxygen and nitrogen heterocycles. Reusability, shorter reaction time, high conversion, wide substrate scope, easy work-up procedure are noteworthy measures of this synthetic route. [ABSTRACT FROM AUTHOR]

Green approach on wastewater treatment strategies aims to promote sustainable and environmentally friendly methods for treating wastewater while also reducing the environmental impact of traditional wastewater treatment processes. Hence, the objective of this paper was to undertake a critical review of green approach on wastewater treatment strategies using standard techniques of harvesting data from secondary sources from 2015 to 2023. Information obtained reveals that energy-efficient treatment technologies, such as anaerobic digestion and membrane bioreactors, use less energy than traditional treatment technologies. Treating wastewater for reuse can reduce the demand for freshwater resources and the energy required for water treatment. Onsite wastewater treatment systems, such as septic systems and composting toilets, can reduce the amount of wastewater that needs to be transported and treated at centralized facilities. Incorporating green infrastructure, such as rain gardens and permeable pavement, into urban areas can help reduce the amount of stormwater runoff that enters the wastewater treatment system. Extracting nutrients, such as nitrogen and phosphorus, from wastewater can be used as a fertilizer for crops, reducing the need for synthetic fertilizers. Overall, these green wastewater treatment strategies aim to reduce the energy consumption, chemical usage, and environmental impact of traditional wastewater treatment processes, while promoting sustainable and efficient use of resources.

The transition of graphene from the lab to consumer goods is still a challenging job that necessitates efficient and cost-effective large-scale graphene production. This study combines electrochemical exfoliation in an aqueous solution of sulfuric acid (1M H2SO 4) and hydrogen peroxide (3% H2O 2) followed by thermal deoxygenation at a temperature of 800 ∘ C within the ambient environment. This method allows the inexpensive synthesis of pristine graphene for various industrial applications. X-Ray diffraction (XRD) results for pristine graphene showed a distinct peak at 2 = 2 6. 3 9 ∘ with a corresponding interplanar distance ( d hkl ) of 3.3754 Å and a crystallite size of 18 nm. XRD statistics indicated that the crystal structure of the original graphene was preserved. The crystalline structure was recovered and the interplaner distance was decreased following the high temperature thermal reduction. According to Raman spectroscopy, the impurity degree (I D /I G) region fraction of pristine graphene was 0.211. This indicates that the original graph produced by the current method has little distortion. Raman analysis shows that there is a linear red shift in peaks D-band (D), G-band (G), and second order of the D-band (2D) due to the increase in phonon–phonon nonlinear interactions with increasing temperature, so that peaks (D), (G) and (2D) shifts are shown. The majority of the functional groups were discovered to be eliminated after high temperature thermal treatment. The three-dimensional graphene sheet is highly defined and intricately coupled in the microstructure analysis, resulting in a laxer and porous structure. When treated at a temperature below 800 ∘ C, there was only minor damage to the reduced graphene oxide (RGO) microstructure. The results of the Atom Force Microscope (AFM) demonstrated that the flaws spread over time from the layer boundaries and pores to the edges and eventually resulted in a separate RGO archipelago. According to TGA analysis, at temperatures up to 800 ∘ C, the RGO sheet loses up to 45% of its weight. In this research, an electrochemical technique followed by a thermal reduction has been used to try to synthesize RGO. The structural disarray was seen to be lessening as a result of the heat treatment, and the RGO's crystal structure was restored to its former configuration. The results of the FTIR and TGA tests demonstrate that the bulk of the oxygen-containing functionalities were destroyed during the thermal reduction process. [ABSTRACT FROM AUTHOR]

The work employs aliphatic and aromatic isothiocyanates and utilizes electrochemical techniques for the reaction. The process involves a two-electrode system with a conductive carbon working electrode and a counter electrode. An appropriate electrolyte, such as an organic solvent, is used, and upon applying an electric potential, electrochemical oxidation and nucleophilic substitution reactions occur, leading to the formation of the desired 1,3,4-oxadiazole-2-amines. Key advantages of this electrochemical method include its high functional group tolerance, enabling the synthesis of a wide range of compounds with different substituents. The reaction conditions can be fine-tuned for high conversion and selectivity, ensuring good overall yields of the target products. Additionally, the electrochemical method offers sustainability and convenience, making it a promising alternative to traditional synthesis. The use of electricity as an energy source is more environmentally friendly compared to traditional heating methods, contributing to greener and eco-friendly chemical processes. [ABSTRACT FROM AUTHOR]

This work aims to assess the anti-cyanobacterial potentialities of the invasive weed Verbesina encelioides against Microcystis aeruginosa growth. In an experimental bioassay, the aqueous extract of the aerial parts of V. encelioides (AEVE) was tested to investigate its activity on M. aeruginosa growth. Several growth parameters and physiological indicators were assessed. To reveal the potentially allelochemicals, phenolic and flavonoid contents were quantified in AEVE. Results demonstrated that AEVE inhibit the growth of M. aeruginosa in a concentration dependent way. Furthermore, under both highest concentration of AEVE (0.75 and 1 mg/mL), the inhibitory rate (IR) reaches 71% and 79% only after 4 d (d) of experimentation, respectively. The highest IR (93%) was achieved at the highest concentration (1 mg/mL) on 12-d. Thus, the inhibition rates were confirmed by powerful IC50 and IC90 values (0.37 and 0.8 mg/mL), respectively. Additionally, during the experimental period, all four-treatment groups (0.25-1 mg/mL) showed a significant decrease in the content of Chlorophyll-a and carotenoids compared to the control. Overall, the results demonstrate the anti-cyanobacterial effect of AEVE on Microcystis growth. Moreover, the invasive weed V. encelioides might be proposed as a potential environmentally friendly anti-cyanobacterial agent to control Microcystis blooms in the eutrophic water bodies. [ABSTRACT FROM AUTHOR]

A green study was undertaken for the extraction of plumbagin, an important natural naphthoquinone, from the roots of Plumbago pulchella Boiss. In the first stage, four solvents were comparatively evaluated, acetone, n -hexane, ethyl acetate, and methanol; attending Principle #5, only green solvents (ethyl acetate and acetone) were underscored. In a second step, considering Principle # 6, various green alternative activating modes were assessed: two electromagnetic methods, microwave (MW) and near-infrared (NIR), in addition to mechanical approaches, ultrasound (US), and tribochemistry-mechanochemistry (TB-MCh). These green modes were studied in comparison to the classical mantle heating (MH) and finally with maceration (M). MW and US-MH ensued the better modes, and EtOAc (green) and n -hexane (non-green) displayed the best yields (0.027% and 0.025%, respectively). Focusing on Principle #11, the monitoring and quantification of the extractions were performed by GC-MS employing 8-hydroxyquinoline as a reference. Some other involved Principles (#1, #3, #7, #12) will be commented on in the discussion. As an important complement, a statistical technique based on the analysis of variance (ANOVA) and response surface methodology was used to establish the degree of dependence of the amount of plumbagin extracted with the parameters time and amount of root, in addition to a GC-MS validation process carried out according to ICH Q2 R2 2022 guidelines. Finally, it is convenient to highlight that the target plant is native to Mexico, and according to a profound literature search, no chemical information for Plumbago pulchella Boiss is accessible. [ABSTRACT FROM AUTHOR]

Alum-catalyzed Knoevenagel reaction of substituted aromatic aldehydes and active methylene compounds such as malononitrile and barbituric acid using green, eco-friendly solvent, water was developed. The protocol is practically simple and found efficient. The condensation is carried out in a short reaction time and the desired products are obtained in excellent yields. Furthermore, The catalyst utilized is readily accessible, cost-effective, environmentally friendly, and safe. The derivatives are among the most frequently used intermediate in heterocyclic synthesis. The synthesized benzylidene derivatives were characterized by spectral analysis. [ABSTRACT FROM AUTHOR]

This work aims to explore the anti-cyanobacterial potentialities of the weed Oxalis pes-caprae L. on Microcystis aeruginosa growth. In the current study, the aqueous extract of the aerial parts of Oxalis pes-caprae L. (AEOP) was tested to assess its activity on M. aeruginosa growth in an experimental bioassay. The anti-cyanobacterial effect of AEOP against M. aeruginosa was assessed in a batch culture experiment where several morphological and physiological indicators, and inhibition parameters were assessed. To reveal the potentially allelochemicals, phenolic compounds were analyzed in AEOP. Furthermore, the results from the bioassay demonstrated that AEOP inhibit the growth of M. aeruginosa in a concentration dependent way. Microcystis cell densities were significantly reduced during the bioassay period at the different tested concentrations (0.25, 0.5, 0.75, and 1 mg/mL). Under both highest concentration of AEOP (0.75 and 1 mg/mL), the inhibitory rate (IR) reaches 63% and 74 only after 4 d of experimentation, respectively. The highest IR (86%) was achieved on 10 d at the highest concentration (1 mg/mL). Additionally, during the 12-d experimental period, all four-treatment groups (0.25-1 mg/mL) demonstrated a significant decrease in the content of chlorophyll-a and carotenoids compared to the control. Overall, the obtained results demonstrate the anti-cyanobacterial effect of AEOP to control Microcystis growth. Moreover, the invasive weed Oxalis pes-caprae L. might be proposed as a potential ecofriendly alternative algaecide to control Microcystis blooms in the eutrophic water bodies. [ABSTRACT FROM AUTHOR]

This study reports the use of aqueous mango stem bark extract (MSBE) as a source of a relatively cheap and easily accessible reducing and stabilizing agent for the biosynthesis of silver nanoparticles (AgNPs). The biosynthesis was conducted at 80 °C and pH 9 within 30 min. The FTIR and UV–Vis spectroscopic characterization of the MSBE provided evidence of chromophoric phytoconstituents with reducing functional groups. These constituents served as reducing and stabilizing agents as they were observed in the FTIR spectrum of the AgNPs. Similarly, the SEM micrograph and TGA thermogram indicated the presence of MSBE phytoconstituents on the surface of the synthesized AgNPs. The HRTEM revealed the polycrystalline nature of the AgNPs which adopted quasi-spherical and elliptical morphologies with sizes in the range 5–50 nm. The AgNPs showed remarkable catalytic activity in the degradation of methylene blue dye with a pseudo-first-order rate constant of 0.0089 s−1. The degradation was completed within 280 s. In addition, the AgNPs displayed improved antibacterial activity in comparison with the MSBE against clinical pathogens. Based on the findings in this study, AgNPs can serve as a potential catalyst in water treatment and also as an antimicrobial agent in disinfectant formulations. [ABSTRACT FROM AUTHOR]

Yu Zhang,1– 3,* Li Cui,2,* Yizeng Lu,4 Jixiang He,5 Hidayat Hussain,6 Lei Xie,4 Xuan Sun,2 Zhaoqing Meng,7 Guiyun Cao,7 Dawei Qin,1 Daijie Wang2,3 1School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People’s Republic of China; 2School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, People’s Republic of China; 3Biological Engineering Technology Innovation Center of Shandong Province, Heze Branch of Qilu University of Technology (Shandong Academy of Sciences), Heze, 274000, People’s Republic of China; 4Shandong Provincial Center of Forest and Grass Germplasm Resources, Jinan, 250102, People’s Republic of China; 5School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250353, People’s Republic of China; 6Department of Bioorganic Chemistry, Leibniz Institute of Plant BioChemistry, Halle, D-06120, Germany; 7Shandong Hongjitang Pharmaceutical Group Co., Ltd., Jinan, 250103, People’s Republic of China*These authors contributed equally to this workCorrespondence: Dawei Qin, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People’s Republic of China, Tel/Fax +86 53189631208, Email qdw@qlu.edu.cn Daijie Wang, Biological Engineering Technology Innovation Center of Shandong Province, Heze Branch of Qilu University of Technology (Shandong Academy of Sciences), Heze, 274000, People’s Republic of China, Tel +86 53182605319, Fax +86 53182964889, Email wangdaijie@qlu.edu.cnBackground: The leaves of L. japonica (LLJ) are widely used as medicine in China. It is rich in caffeoylquinic acids, flavonoids and iridoid glycosides and has strong reducing capacities. Therefore, it can be used as a green material to synthesize silver nanoparticles.Methods: LLJ was used as a reducing agent to produce the LLJ-mediated silver nanoparticles (LLJ-AgNPs). The structure and physicochemical properties of LLJ-AgNPs were characterized by ultraviolet spectroscopy (UV-Vis), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and x-ray powder diffraction (XRD). Antioxidant activity of LLJ-AgNPs was determined by 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging. Antibacterial activity was determined by 96 well plates (AGAR) gradient dilution, while the anticancer potential was determined by MTT assay.Results: The results showed LLJ-AgNPs had a spherical structure with the maximum UV-Vis absorption at 400 nm. In addition, LLJ-AgNPs exhibited excellent antioxidant properties, where the free radical scavenging rate of LLJ-AgNPs was increased from 39% to 92% at concentrations from 0.25 to 1.0 mg/mL. Moreover, LLJ-AgNPs displayed excellent antibacterial properties against E. coli and Salmonella at room temperature, with minimum inhibitory values of 10− 6 and 10− 5 g/L, respectively. In addition, the synthetic LLJ-AgNPs exhibited a better inhibition effect in the proliferation of cancer cells (HepG2, MDA-MB − 231, and Hela cells).Conclusion: The present study provides a green approach to synthesize LLJ-AgNPs. All those findings illustrated that the produced LLJ-AgNPs can be used as an economical and efficient functional material for further applications in food and pharmaceutical fields.Keywords: leaves of Lonicera japonica Thunb, LLJ-AgNO3-NPs, green approach, antioxidant, antibacterial, anticancer

One of the most prevalent elements on the planet is carbon. Properties of allotropic forms of carbon, such as graphite and diamond are already well-explored but their other derivatives like graphene-based nanomaterials and carbon nanotubes, have emerged lately. However, the production of graphene and graphene-derivatives often necessitates the use of costly and toxic chemicals which affects both environment as well as human health. Although, with time polymer composites research has progressed to the point where multidisciplinary cooperation between scientists have been growing towards sustainable direction. In recent years, biogenic or green reduced graphene-derivatives were prepared and used for supercapacitor formation, wastewater treatment, as sensors, drug delivery tool and other related fields. Even though it is still in its initial phases of research, it has shown remarkable promise as in some cases they outperformed prior carbon-based nanomaterials. Therefore, this review focuses of recent promising advancement of graphene nanoparticles in various fields, synthesized using green, cost effective and easy approaches. And in the end, we concluded by addressing the existing challenges and future directions in for commercialized use of graphene nanocomposites.