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Currently, inhomogeneous distribution of Zn2+on the surface of the Zn anode is still the essential reason for dendrite formation and unsatisfactory stability of zinc ion batteries. Given the merits of strong interaction between Sn and Zn, as well as a low nucleation barrier during Zn deposition, the combination of metallic Sn with carbon material is expected to improve the deposition of zinc ions and inhibit the growth of zinc dendrites by guiding the homogeneous plating/stripping of zinc on the electrode surface. In this article, zincophilic Sn nanoparticles with low nucleation barriers and strong interaction with Zn2+were embedded into 3D N-doped carbon nanofibers using a simple electrostatic spinning technique. Accordingly, when serving as an artificial coating layer for the zinc metal anode, an ultrastable Sn@NCNFs@Zn||Sn@NCNFs@Zn symmetric cell can be achieved for over 3500 h with a low nucleation overpotential of 29.1 mV. Significantly, the full cell device assembled with the as-prepared anode and MnO2cathode exhibits desirable electrochemical behaviors. Moreover, this simple method could be extended to other metal–carbon composites, and to ensure ease in scaling up as required. Such significant approach can provide an effective strategy for the design of high-performance zinc anodes.

ABSTRACTDiet can regulate systemic inflammation, which may play an important role in the development and progression of cognitive impairment and dementia. To explore the relationship between the dietary inflammatory potential and cognitive ability. A total of 2307 adults aged 60 years or older were recruited from the Fujian Provincial Hospital (Fujian, China). Dietary inflammatory properties were analyzed using the energy-adjusted dietary inflammatory index (E-DII). The Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA) were used to assess cognitive function. Logistic regression and restricted cubic spline (RCS) were fit to assess the associations between variables. The MCI subjects with the highest E-DII scores had a higher risk of AD compared to subjects with the lowest E-DII scores (OR = 1.98, 95%CI = 1.49–2.64, Pfor trend < 0.001). Subjects with the highest E-DII levels were at increased risk of cognitive impairment compared to those with the lowest E-DII levels (OR = 1.56, 95%CI = 1.25–1.93, Pfor trend < 0.001). The link between E-DII and cognitive impairment was significant in a nonlinear dose response analysis (Pfor nonlinear = 0.001). Higher E-DII scores were associated with an increased risk of developing AD or cognitive impairment. These findings may contribute to the effective prevention of cognitive impairment by constructing a multidisciplinary synergistic prevention strategy and controlling dietary inflammation levels.

The antibiotic adsorbability and economic performance of modified semi-carbonized fiber (SF) were investigated by using 100% chitosan (CS) to modify SF (prepared by cotton) for preparing CS-modified SF (CS-SF). Then, different ratios (0%, 10%, 20%, 50%, 100%, and 200%) of sodium alginate (SA) were used to modify 100CS-SF for preparing SA and CS-modified SF (SA/CS-SF). Batch method was used to investigate the adsorption characteristic of chlortetracycline (CTC), tetracycline (TC), and oxytetracycline (OTC) on different SA/CS-SFs. The effects of temperature, pH, and ionic strength on antibiotic adsorption were compared, and the economic performance of different SA/CS-SFs was analyzed. Results showed that (1) the Langmuir model is suitable for describing the adsorption process of antibiotics by different SA/CS-SFs. The maximum adsorption amount (qm) of different SA/CS-SFs for CTC, TC, and OTC were 11.17–36.36, 6.14–26.11, and 9.90–32.87 mmol/kg, respectively, ranking in the order of CTC > OTC > TC. (2) The adsorption antibiotics by different SA/CS-SFs conformed to the pseudo-first-order kinetics equation. Antibiotic adsorption on different SA/CS-SFs increased with the increase in temperature, and the adsorption was a spontaneous, endothermic, and entropy-increasing process. (3) In the pH range of 3–9 and ionic strength range of 0.01–0.2 mol/L, the adsorption amount of antibiotics on different SA/CS-SFs all increased first and then decreased with increasing pH and ionic strength, reaching the maximum value at pH = 5 and ionic strength of 0.1 mol/L, respectively. (4) The economy (qm/price) of different SA/CS-SFs for antibiotic adsorption ranged from 7.18 to 22.91 mg/¥, and 100SA/CS-SF showed the highest economy. Compared with biochar and modified biochar, 100SA/CS-SF had higher economy in antibiotic adsorption.

To investigate the adsorption performance of different modified hydroxyapatite nanoclusters (nHAs) for oxytetracycline (OTC), amphoteric modification of nHA with 50% and 100% dodecyl dimethyl betaine (BS) was performed to obtain BS-modified nHA (50BS-nHA and 100BS-nHA). Grafting modification of BS-nHA with thiourea–citral (TC) and thiourea–vanillin (TV) was also conducted to acquire TC- and TV-modified BS-nHA (TC-BS-nHA and TV-BS-nHA), respectively. The microscopic morphology of the tested materials was studied by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and specific surface area (SBET) detection. Batch method was used to investigate the adsorption characteristic of OTC on the tested materials, and the effects of pH, temperature, and ionic strength on OTC adsorption were compared. Results were as follows: (1) After amphoteric and grafting modification, the pH, cation exchange capacity (CEC), and SBETof nHA decreased, whereas the total organic carbon (TOC) content increased. SEM and FTIR showed that TC and TV were successfully linked to BS-nHA. (2) The isothermal adsorption curves of each test material for OTC were in accordance with the Langmuir model. The maximum adsorption amount (qm) of OTC ranged from 87.85 to 168.85 mmol/kg, and was in the order of TC-BS-nHA > TV-BS-nHA > BS-nHA > nHA. (3) The OTC adsorption of the test materials was negatively correlated with pH and ionic strength and positively correlated with temperature, and the optimum adsorption conditions were 30°C, pH = 5, and ionic strength of 0.01 mol/L. (4) The results of thermodynamic analysis indicated that the adsorption of OTC was a spontaneous, endothermic, and entropy-increasing reaction. The adsorption of OTC by each tested material conformed to the pseudo-second-order kinetic equation. TOC was the key to determining the adsorption capacity of each test material to OTC.

Semi-carbonized polyacrylonitrile fiber (Spf) was modified with 50% and 100% sodium dodecyl sul-fate (SDS) to prepare SDS-modified Spf (SDS-Spf) to explore the adsorption effect of heavy-metal ions on composite-modified fiber materials. Then, SDS-Spf was compositely modified with chitosan (CS) in different proportions (0%, 25%, 50%, and 100%) to obtain SDS and CS-modified Spf (SDS/CS-Spf). The isotherm adsorption characteristics of Cu2+and Zn2+on different SDS-Spfs and SDS/CS-Spfs were studied by batch method, and the effects of temperature, pH, and ionic strength on the adsorption were analyzed. The following results were obtained: (1) the adsorption isotherms of Cu2+and Zn2+on the tested samples all conformed to the Langmuir model, with the maximum adsorption capacity maintained at 1,007.60–1,156.03 (Cu2+) and 856.08–970.50 mmol/kg (Zn2+). They showed a trend of SDS/CS-Spf > SDS-Spf > Spf. (2) At 10°C–30°C, the adsorption amount of Cu2+and Zn2+on the tested materials increased with increasing temperature, and the adsorption exhibited a spontaneous, endothermic, and entropy-increasing process. (3) High pH facilitated the adsorption of Cu2+and Zn2+on the tested materials in the pH range of 2–6. With the increase in ionic strength, the adsorption amount of Cu2+and Zn2+increased first and then decreased, reaching the peak value at an ionic strength of 0.1 mol/L. (4) The pH, cation exchange capacity, and specific surface area of the different SDS/CS-Spfs determined the adsorption amount of Cu2+and Zn2+.

This study investigated the adsorption performance of antibiotics using modified semi-carbonized fibers (SCF) prepared from polyacrylonitrile and loaded with metal ions. Nitrated semi-carbonized fibers (N-SCF) and magnetized–nitrated semi-carbonized fibers (MN-SCF) were prepared through nitrification and magnetization methods, and different metal ion-loaded MN-SCFs were obtained by loading Ca and Mg ions onto MN-SCF. The effects of pH, temperature, and ionic strength on antibiotic adsorption were analyzed. The adsorption kinetics and thermodynamics of tetracycline (TC), chlortetracycline (CTC), and oxytetracycline (OTC) were studied using batch experiments. Results showed that (1) the adsorption of antibiotics on the tested materials initially increased and then decreased with increasing pH and ionic strength, reaching maximum values at pH 4 and 0.1 mol/L, respectively. (2) Higher temperatures facilitated the adsorption of antibiotics on the materials, which followed a chemisorption mechanism. (3) The Langmuir model provided a better fit for the adsorption isotherms of TC, CTC, and OTC compared with the Freundlich model, suggesting monolayer adsorption. (4) The maximum adsorption capacity (qm) of the antibiotics ranged from 0.80 to 3.97 mg/g, with of CTC > OTC > TC. Metal ion-loaded MN-SCFs exhibited higher adsorption amounts compared with MN-SCF alone.

ABSTRACTTo avoid installation dispersion and improve the data transmission efficiency of the submarine oil and gas production system, the concept of function module with a vertical layout is presented. Meanwhile, the wireless sensor network is introduced to monitor the function module. For a high-efficiency wireless sensor network, the node deployment method is crucial and essential. In this paper, the model of the region to be monitored is established, and an improved isosceles triangle node deployment method is proposed based on the traditional disk perception model of the sensor node. The coverage density and coverage efficiency of the single and double coverage of this improved method are also calculated. By comparing the coverage performance of the traditional method (TM) and the improved method (IM), the results show that the single and double coverage density of the IM are both smaller. The introduction of the IM decreases the cost of the perception coverage of the side of the function module and establishes a foundation of the remote monitoring of the function module.

Interfacial regulation for carbon-based materials plays critical role for supercapacitive performance improvement and the strategies about introducing heteroatomic groups and tuning specific surface area can be proposed to effectively address the low specific capacitance issues. Thus, the approaches about activation treatment with nitric acid (APC-H800) and copper chloride (APC-C800) for biomass-derived carbon materials have been raised and systematically investigated. Consequently, though the above chemical activation treatment, the oxygen and nitrogen functional groups can be introduced for APC-H800. Meanwhile, the specific surface area of APC-C800 has been significantly increased. Significantly, the upper specific capacitance of 384 F g−1and 423 F g−1for APC-H800 and APC-C800 electrodes can be achieved at a current density of 1.0 A g−1, what matters more is that two symmetric devices offer superior energy density and desirable cycling stability (no decrease that occurs after 10,000 cycles) are successfully assembled by employing APC-H800 and APC-C800 electrodes, respectively. More significantly, desirable energy density about 11.18 Wh kg−1and 12.5 Wh kg−1at 249.98 W kg−1and 250 W kg−1have been achieved for the symmetric supercapacitor devices of APC-H800//APC-H800 and APC-C800//APC-C800. These modification strategies shed insight into the sensible design of a further stage of advanced art carbon electrodes for powerful performance supercapacitors.

A cost-effective and facile method for chemical synthesis of manganese-based sulfides (MS) and investigation of the structure, morphology, and electrochemical properties have been reported in this work. The MS electrode exhibits exceptional electrochemical performances including ultrahigh specific capacitance (8.2 F cm−2), excellent cycle life (88.6 % retention after 3500 cycles), and good rate capability (86.6 % retention at 50 mA cm−2). Furthermore, to solve the shortcomings of liquid electrolyte supercapacitors, including electrolyte leakage, corrosion, and environmental pollution, a solid-state supercapacitor assembled with MS positive electrode and camphor seed derived carbon (CSDC) negative electrode have been successfully fabricated (MS//CSDC), which shows a maximum specific capacitance about 351.9 mF cm−2with capacitance retention about 87.6 % after 2500 cycles. Specifically, the energy density of 0.55 mWh cm−3at a power density of 11.25 mW cm−3can be achieved, demonstrating excellent supercapacitive behaviors of such as-fabricated device. Furthermore, the CV curves of such device prior to and following bending do not change significantly at 10 mV s−1, which indicates good mechanical flexibility and stability. Notably, the asymmetric MS//CSDC solid-state supercapacitors connected in series can quickly illume red LEDs, emerging their practical application prospects for such prepared flexible devices.

Application of water-based supercapacitor is largely limited by the disadvantages regarding electrolyte leakage and electrolyte corrosion. To address these issues, herein, a quasi-solid-state supercapacitor based on carbon felt (CF) electrode with PVA-KI/H2SO4mixed gel electrolyte has been fabricated and an stable uniform acetalized polyvinyl alcohol (UAPVA) membrane in acidic condition has been reported for the first time. Given the excellent chemical and mechanical properties, the UAPVA membrane can facilitate I−transportation and still be restored to its original shape after stretching, bending and twisting, which is highly desirable for advanced flexible quasi-solid-state device applications. The as-prepared device exhibits outstanding electrochemical performance with bending 180oand then recovering to 0o. The specific capacitance remains 90.2% after 2400 cycles at 0.75 mA cm−2, indicating its good mechanical flexibility and stability. Remarkably, four quasi-solid-state supercapacitors can easily light up a red LED. The acquired electrochemical results highlight the promise of a successful membrane preparation strategy for the development of quasi-solid-state supercapacitors. Meanwhile, the addition of redox agents to traditional electrolyte solutions can be an effective way to achieve high-performance energy storage devices.

To apply a network pharmacological approach to explore the targets and possible mechanisms of Kai Yu Zhong Yu Tang (KYZYT) in the treatment of tubal fimbria obstruction. The target information of KYZYT was extracted from TCMSP and HERB database. Genes related to tubal fimbria obstruction were searched using the GENECARD database. Target protein network maps (PPI) were drawn using string database analysis and Cytoscape 3.7.1 software. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis and gene function analysis (GO) enrichment analysis were performed with the help of Perl language and biological program package in R language. To explore the multiple pharmacological mechanisms of action of KYZYT in the interventional treatment of tubal fimbria obstruction and to lay the foundation for further experimental validation. Through the collection and analysis of multiple databases, 355 biological targets of KYZYT were identified. 168 targets of tubal fimbria obstruction were obtained from disease database. The “drug-component” and “drug-target” networks of KYZYT were constructed, and the protein interaction network (PPI) of overlapping targets was analyzed to identify the key targets of the drug affecting the disease. In addition, KEGG pathway analysis and GO enrichment analysis were performed on the overlapping targets to explore the mechanism of KYZYT in the treatment of tubal fimbria obstruction. KYZYT has the characteristics of multi-component, multi-target and multi-pathway in the treatment of tubal fimbria obstruction, which provides new ideas and scientific basis for further clarification of the molecular mechanism.

T cell hyporesponsiveness is crucial for functional immune system and prevent the damage induced by alloreactive T cells in autoimmune pathology and transplantation. As one of the most important regulators during B cell development, PRDM1 (also known as BLIMP-1) has been demonstrated its essential role for maintaining T cell hyporesponsiveness and homeostasis, evidenced by Prdm1deficient mice accumulating activated T cells and developing multiorgan inflammatory disease. However, the mechanism of PRDM1 regulating T cell hyporesponsiveness is still ambiguous.

No relevant conflicts of interest to declare.