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Dhivya, Padma, and Santhini ([2]) states that wound dressing is designed to be in contact with the wound, which is different from a bandage that holds the dressing in place. Keywords: Chitosan; hemostatic efficacy; plain gauze; secondary layer; spunlace; wound dressing; ; ; ; ; ; EN Chitosan hemostatic efficacy plain gauze secondary layer spunlace wound dressing ZH 8044 8050 7 11/21/22 20221220 NES 221220 Introduction The selection of fibers and textile structures are very essential for the selection hemostatic wound dressing material (Kubera Sampath Kumar et al. [4]; [6]; [5]). 2020a. Study of wound dressing material coated with natural extracts of Calotropis Gigantean, Eucalyptus Globulus and buds of Syzygium Aromaticum solution enhanced with rhEGF (REGEN-D TM 60). 2017a. Evaluation of antibacterial efficacy and wound healing activity of natural fibre based wound dressing coated with natural extracts of calotropis gigantean, eucalyptus globules and buds of syzygiumaromaticum enhanced with epidermal growth factor. [Extracted from the article]

In this study, transesterification of waste sunflower oil with high free fatty acid was studied in a combined heterogeneous and homogeneous catalytic system. Production of hetero-carbon catalyst and their characteristics were done. The effects of the heterogeneous carbon on the homogeneous acid and base catalyzed transesterification reaction were analyzed. Parameters, such as reaction temperature, reaction time, and excess methanol, affecting the reaction were optimized to obtain a high yield of biodiesel. The results clearly showed that the introduction of customized carbon reduced both acid and base catalyst consumption. It was observed that carbon alone is not responsible for catalyzing the transesterification reaction but the addition of carbon reduces the homogeneous catalyst consumption. It was found that the catalytic activity of carbon with acid catalyst was found to have maximum performance. The highest conversion of waste sunflower oil was found to be 82% with acid catalyst at the following optimized process conditions: Combination of 1.5 wt% H2SO4, 5 wt% carbon, 90 minutes reaction time at 65°C, and 100% excess methanol. [ABSTRACT FROM PUBLISHER]

A modified approach was adopted to develop co-flocs consisting of Azospirillum brasilense MTCC-125 and Pseudomonas fluorescens MTCC-4828. The results of our study revealed that both Azospirillum and Pseudomonas strains exhibited a higher survivability when embedded in the flocs. The survivability of the strains in co-floc was found to be higher when compared to the log phase vegetative cells in different inoculant carriers, spermosphere rhizoplane and rhizosphere. The co-floc treatment has also significantly increased the germination percentage and vigour index of rice. In the present study flocculation was found to play a major role in enhancing adhesion of both the strains to rice roots. The co-flocs were studied for their efficiency to induce resistance in rice crop against rice blast. The relative role of Azospirillum and Pseudomonas co-flocs in the induction of resistance against the phytopathogen was evaluated. It was found that when the activities of polyphenol oxidase, peroxidase and phenol were high and when the relative amounts of the sugars were low, the disease infestation was less and vice versa. The association of these compounds strongly implies their role as casual agents of induced resistance against Pyricularia oryzae. [ABSTRACT FROM AUTHOR]

A highly efficient pseudo continuous resonance enhanced multiphoton ionisation detection scheme is presented that combines the sensitivity of resonance enhanced multiphoton ionisation (REMPI) with high resolution. This detection scheme is employed to obtain the A(v' = 1) ← X1(v = 0) spectra of 208Pb19F with a resolution of 90 MHz. The observed 19F hyperfine splittings are analysed in terms of effective hyperfine parameters that describe the interaction between the fluorine nuclear spin and that of the unpaired electron in the A and X1 states of the molecule. [ABSTRACT FROM AUTHOR]

Biofouling in the marine environment is a major problem. In this study, three marine organisms, namely Bacillus flexus (LD1), Pseudomonas fluorescens (MD3) and Vibrio natriegens (MD6), were isolated from biofilms formed on polymer and metal surfaces immersed in ocean water. Phylogenetic analysis of these three organisms indicated that they were good model systems for studying marine biofouling. The in vitro antifouling activity of 47 synthesized chalcone derivatives was investigated by estimating the minimum inhibitory concentration against these organisms using a twofold dilution technique. Compounds C-5, C-16, C-24, C-33, C-34 and C-37 were found to be the most active. In the majority of the cases it was found that these active compounds had hydroxyl substitutions. A quantitative structure-activity relationship (QSAR) was developed after dividing the total data into training and test sets. The statistical measures r2, [image omitted] (>0.6) q2 (>0.5) and the F-ratio were found to be satisfactory. Spatial, structural and electronic descriptors were found to be predominantly affecting the antibiofouling activity of these compounds. Among the spatial descriptors, Jurs descriptors showed their contribution in all the three antibacterial QSARs. [ABSTRACT FROM AUTHOR]

In this study, nano-size calcium-based heterogeneous catalyst derived from lime sludge was used for biodiesel production. Its catalytic activity in transesterification ofCalophyllum inophyllum(C. inophyllum) oil and the physicochemical properties of synthesized biodiesel were systematically investigated. Due to high free fatty acids two-step acid esterification and alkali transesterification were performed. Transesterification reaction follows pseudo-first-order kinetics and their rate constants were determined. Activation energy and frequency factor were found to be 20.69 kJ mol–1and 0.219 s–1, respectively. The fuel properties of the derived biodiesel was analyzed according to ASTM methods. [ABSTRACT FROM PUBLISHER]