ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·
IF 0
Zhang Zekun,Zhao Le,Yang Jie,Pang Jiayin,Lambers Hans,He Honghua
Antibiotic contamination in soil has become a major concern worldwide. At present, it is not clear how two co-existed antibiotics with environmentally relevant concentrations would affect soil bacterial community structure, the abundances of antibiotic resistance genes (ARGs) and functional genes, and whether the effects of antibiotics would differ between rhizosphere and bulk soil. We conducted a greenhouse pot experiment to grow maize in a loess soil treated with oxytetracycline (OTC) or sulfadiazine (SDZ) or both at an environmentally relevant concentration (1 mg kg −1 ) to investigate the effects of OTC and SDZ on the rhizosphere and bulk soil bacterial communities, abundances of ARGs and carbon (C)-, nitrogen (N)-, and phosphorus (P)-cycling functional genes, and on plant growth and plant N and P nutrition. The results show that the effects of environmentally relevant concentrations of OTC and SDZ on bacterial communities and abundances of ARGs and functional genes differ between maize rhizosphere and bulk soil. The effects of two antibiotics resulted in a higher absolute abundances of accA , tet(34) , tnpA-04 , and sul2 in the rhizosphere soil than in the bulk soil and different bacterial community compositions and biomarkers in the rhizosphere soil and the bulk soil. However, OTC had a stronger inhibitory effect on the abundances of a few functional genes in the bulk soil than SDZ did, and their combination had no synergistic effect on plant growth, ARGs, and functional genes. The role of co-existed OTC and SDZ decreased shoot height and increased root N concentration. The results demonstrate that environmentally relevant concentrations of antibiotics shift soil microbial community structure, increase the abundances of ARGs, and reduce the abundances of functional genes. Furthermore, soil contamination with antibiotics can diminish agricultural production via phytotoxic effects on crops, and combined effects of antibiotics on plant growth and nutrient uptake should be considered.
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JOURNAL OF POLYMER RESEARCH
·
2025
·Vol. 32
·期 2
·1-13
·
IF 2.8
Wang Chaoying,Xin Zhong
In this work, polyacrylonitrile (PAN) homopolymer, poly(acrylonitrile-methyl acrylate)[P(AN-MA)], poly(acrylonitrile-methyl acrylate-itaconic acid)[P(AN-MA-IA)] and poly(acrylonitrile-methyl acrylate-ammonium itaconic acid)[P(AN-MA-AIA)] with narrow polydispersity were successfully produced in continuous flow. The compositions, molecular weights, molecular weight distributions and crystalline structures of these PAN polymers were measured and the influence of IA and AIA on cyclization reactions, structural transformation and thermal stability during the stabilization process was also explored. The incorporation of IA and AIA into polymer chains reduces the initial temperatures of cyclization reactions, broadens the exothermic peaks, eases the concentrated heat through an ionic mechanism and exhibits better stabilization at lower temperatures. Furthermore, AIA effectively promotes dehydrogenation reaction. Among these four PAN polymers, P(AN-MA-AIA) terpolymer presents the best stabilization since COO − NH 4 + has the strongest nucleophilicity towards nitrile groups that are close to carbon atoms.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·Vol. 60
·期 10
·4929-4945
·
IF 3.9
Gao Shanshan,Wang Wenshuo,Xing Haoran,Pan Pengju,Bao Yongzhong
Solid polymer electrolytes (SPEs) are routinely regarded as potential candidates to replace conventional lithium-ion liquid electrolytes due to their high safety and energy density. Poly(ethylene oxide)/poly(vinylidene fluoride)/lithium bis(trifluoromethanesulfonyl)imide (PVDF/PEO/LiTFSi) SPEs were prepared by a one-step electrospinning process and utilized in lithium metal batteries in this study. The electrospinning process enhanced the compatibility between PEO and PVDF, and induced the α to β -phase crystalline transition of PVDF. Consequently, the continuity of the conductive phase, the solubility and the migration ability of lithium ions within the polymer matrix were improved. Compared to PEO/PVDF/LiTFSi SPE prepared by a solution casting method, the electrospun SPE exhibited superior electrochemical performances at the same composition, achieving a lithium-ion transference number of 0.64 at room temperature and 0.60 at 60 °C. The assembled LiFePO 4 /SPE/Li cell shows a stable capacity of 112 mAh g −1 with a retaining capacity of 105 mAh g −1 after 400 cycles at the current density of 1 C at 60 °C, and the Coulombic efficiency is 100%. Graphical abstract
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Biomass Conversion and Biorefinery
·
2025
·
IF 4.1
Luo Shiwei,Alam Mohammad Asraful,Gao Die,Li Yuexin,Zhao Lei,Xu MinQiang,Xu Jingliang,Zhang Shen
Mannose has demonstrated high value and versatility in various fields, leading to a growing interest in the catalytic epimerization of glucose to mannose using solid catalysts. Herein, zeolite-supported molybdenum (Mo) catalysts were prepared by impregnation-calcination (Mo/Z) and hydrothermal-calcination methods (Mo/Z-HT), respectively. HR-STEM characterization showed the diameter of Mo active sites (MoO 2 ) in Mo/Z and Mo/Z-HT are 57.83 ± 18.05 and 8.37 ± 1.62 nm, respectively. The hydrothermal-calcination process decreased the spatial scale of Mo active sites. The specific surface area of Mo/Z-HT (363.75 cm 3 /g) is higher than that of Mo/Z (200.46 cm 3 /g). The hydrothermal process promotes the formation of hierarchical structure of ZSM. Mo can be embedded in the hierarchical structure during the hydrothermal process, which improved the stability of catalysts significantly. Catalytic performance shown that Mo/Z-HT achieves a mannose yield of 32.81% with a selectivity of 94.20% in water at 130 °C for 30 min. Mo/Z achieved a mannose yield of 33.13% with a selectivity of 92.50% in ethanol-aqueous at 80 °C after 40 min. The recycling experiment showed that Mo/Z-HT exhibits high stability at the sixth cycle with a 30.76% yield and a selectivity of 94.55%. The different reaction temperatures may be attributed to ethyl glucoside was synthesized in ethanol media, which is more easily selectively epimerized in mild conditions. The protecting groups (-OC 2 H 5 ) at C1 position may decrease the activation energy of epimerization and realize kinetic control of site selectivity.
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JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2024
·Vol. 39
·期 3
·651-657
·
IF 1.3
Men Lijuan,Fei Chi,Liu An,Chen Chunyu,Zhou Jiankang,Ju Dianchun
We used the surface-pretreated graphite paper (Gp) as a carrier and loaded BiOCl with high selectivity to Cl − on its surface by solvothermal method to form BiOCl@Gp electrode. The morphology, structure, and composition of the materials were characterized by scanning electron microscopy and nitrogen adsorption/desorption, and the results showed that the spherical BiOCl particles were uniformly dispersed on the surface of the Gp, forming a mesoporous BiOCl@Gp composite with a specific surface area of 22.82 m 2 /g and a pore volume of 0.043 cm 3 /g. Furthermore, cyclic voltammetry and electrochemical impedance spectroscopy were used to test the electrochemical properties of the composites, and the stability of BiOCl and the high conductivity of Gp were synergistic, the BiOCl@Gp exhibited a specific capacitance of 30.2 F·g −1 at a current density of 0.5 A·g −1 , and the selectivity of the BiOCl@Gp materials for Cl− was significantly higher than that of SO 4 2− , NO 2 − , and HCO 3 − . Therefore, BiOCl@Gp composite electrode materials can be used for the selective adsorption of Cl − in wastewater, in order to achieve efficient wastewater recycling.
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BIOPROCESS AND BIOSYSTEMS ENGINEERING
·
2025
·
IF 3.6
Chai Ruina,Meng Meng,Li Qi,Zhao Hansong,Zhao Yinglin,Zhong Jianxiang,Liu Yunying,Zhao Wenyuan,Wang Xiaoxia,Cheng Jianguo
Tylvalosin (TAT) is a widely used veterinary antibiotic whose residual contaminants promote antibiotic resistance and pose potential risks to human health and ecosystems. This study successfully isolated and identified a TAT-degrading bacterial strain, Providencia vermicola strain CT1, through 16S rRNA analysis and biochemical tests. Under optimized conditions (30 °C, pH = 6, initial TAT concentration of 300 mg/L, and bacterial culture volume of 50 mL), strain CT1 achieved a TAT degradation percentage of 97.1%. The degradation process followed a first-order kinetic model and was primarily driven by extracellular metabolites. GC-MS analysis identified that strain CT1 degrades TAT to produce small molecules such as 3-methylbutanoic acid, ethyl acetate, and 3-iminopentan-2-one. Strain CT1 effectively degraded TAT in actual wastewater samples, achieving 95% degradation within 60 h, and significantly reduced the COD, BOD₅, and NH₄⁺-N concentrations. These findings provide theoretical guidelines for removing TAT and other macrolide antibiotic contaminants from the environment.
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高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 6
·1-13
·
IF 5.3
Guo Wenjie,Yu Zhiyong,Li Tianxu,Lu Lingfei,Lin Huiqi,Liao Ying,Zheng Yanghao,Liu Yuntao,Alevtinovna Glaskovich Maria,Barysavets Dzmitry S.,Chen Jinping,Zan Jie,Lu Jiandong
Urine retinol-binding protein 4 (RBP4) has recently been reported as a novel earlier biomarker of chronic kidney disease (CKD) which is a global public health problem with high morbidity and mortality. Accurate and rapid detection of urine RBP4 is essential for early monitor of impaired kidney function and prevention of CKD progression. In the present study, we developed a time-resolved fluorescence immunochromatographic test strip (TRFIS) for the quantitative and rapid detection of urine RBP4. This TRFIS possessed excellent linearity ranging from 0.024 to 12.50 ng/mL for the detection of urine RBP4, and displayed a good linearity ( Y = 239,581 × X + 617,238, R 2 = 0.9902), with the lowest visual detection limit of 0.049 ng/mL. This TRFIS allows for quantitative detection of urine RBP4 within 15 min and shows high specificity. The intra-batch coefficient of variation (CV) and the inter-batch CV were both < 8%, respectively. Additionally, this TRFIS was applied to detect RBP4 in the urine samples from healthy donors and patients with CKD, and the results of TRFIS could efficiently discern the patients with CKD from the healthy donors. The developed TRFIS has the characteristics of high sensitivity, high accuracy, and a wide linear range, and is suitable for rapid and quantitative determination of urine RBP4.
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高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 11
·1-10
·
IF 5.3
Li Xiaoqing,Huang Feng,Bao Chengqi,Shao Rong,Deng Lei,Yang Minghui
The overexpression of interleukin-17A (IL-17A) is closely associated with the pathogenesis of autoimmune diseases and cancer, rendering precise identification of IL-17A level critical for disease diagnosis and prognosis monitoring. In this study, CsPbBr 3 nanoclusters (NCs) were embedded in C 16 H 14 Br 2 O 6 Pb 2 organometallic compound (Pb-MA MOC) via a hot injection approach. Through this way, the issue of CsPbBr 3 NCs susceptible to decomposition in water was solved, and the photocurrent intensity that is generated by CsPbBr 3 was significantly enhanced. A highly sensitive photoelectrochemical (PEC) sensor for detecting IL-17A in human serum was developed using CsPbBr 3 /Pb-MA as the photoactive material. The electrode was initially modified with CsPbBr 3 /Pb-MA. Then, antibody-modified Fe 3 O 4 magnetic nanoparticles (MNs) with target analyte IL-17A captured, and IL-17A antibody-modified Au@CuNi diatomic catalyst (DAC) formed sandwich immune complex structure on the electrode. The existence of CuNi DAC led to a substantial reduction in photoelectric signal intensity due to oxidation of ascorbic acid in the supporting electrolyte. The photocurrent intensity exhibited linear correlation with IL-17A concentration within the range 15-750 pg/mL, and achieving an impressive detection limit of 1 pg/mL. Moreover, the sensor was successfully applied to the determination of IL-17A in human serum, suggesting its potential clinical applications. Graphical Abstract
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高影响因子
Advanced Fiber Materials
·
2024
·
IF 17.2
Jiang Qing,Wan Yuhang,Qin Yi,Qu Xueru,Zhou Mi,Huo Siqi,Wang Xiaochun,Yu Zhicai,He Hualing
Self-healable electronics with self-recoverable mechanical properties show a lot of potential in improving the reliability and durability of wearable electronic devices, but it is still challenging. Herein, a self-healing core-sheath thermoelectric (TE) fiber-based temperature sensor was continuously fabricated by coaxial wet-spinning strategy, whose core layer and sheath layer are, respectively, pure Ti 3 C 2 T x MXene and self-healing silk sericin (SS)/oxide sodium alginate (OSA) composite. The prepared SS/OSA@MXene core-sheath TE fiber exhibits accurate temperature-sensing at 200–400 °C based on a linear relationship between TE voltage and temperature difference. The core-sheath TE fiber that can be integrated into firefighting clothing and timely alert firefighters to evacuate from the fire before the protective clothing becomes damaged. When exposed to flames, SS/OSA@MXene can rapidly trigger a high-temperature warning voltage of 3.36 mV within 1.17 s and exhibit reversible high-temperature alarm performance. In addition, the fractured SS/OSA@MXene can restore up to 89.12% of its original strain limit at room temperature because of the robust yet reversible dynamic covalent bonds between SS and OSA. In this study, an ingenious strategy for developing a durable and wearable TE fiber-based self-powered temperature sensor was proposed. This strategy has promising application prospects in real-time temperature detection of firefighting clothing to ensure the safety of firefighters operating on a fire scene. Graphical Abstract
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Nature Communications
·
2024
·Vol. 15
·期 1
·1-15
·
IF 14.7
Tian Xiaoli,Li Fu,Tang Zhenyuan,Wang Song,Weng Kangkang,Liu Dan,Lu Shaoyong,Liu Wangyu,Fu Zhong,Li Wenjun,Qiu Hengwei,Tu Min,Zhang Hao,Li Jinghong
Metal-organic frameworks (MOFs) with diverse chemistry, structures, and properties have emerged as appealing materials for miniaturized solid-state devices. The incorporation of MOF films in these devices, such as the integrated microelectronics and nanophotonics, requires robust patterning methods. However, existing MOF patterning methods suffer from some combinations of limited material adaptability, compromised patterning resolution and scalability, and degraded properties. Here we report a universal, crosslinking-induced patterning approach for various MOFs, termed as CLIP-MOF. Via resist-free, direct photo- and electron-beam (e-beam) lithography, the ligand crosslinking chemistry leads to drastically reduced solubility of colloidal MOFs, permitting selective removal of unexposed MOF films with developer solvents. This enables scalable, micro-/nanoscale (≈70 nm resolution), and multimaterial patterning of MOFs on large-area, rigid or flexible substrates. Patterned MOF films preserve their crystallinity, porosity, and other properties tailored for targeted applications, such as diffractive gas sensors and electrochromic pixels. The combined features of CLIP-MOF create more possibilities in the system-level integration of MOFs in various electronic, photonic, and biomedical devices.
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高影响因子
Advanced Composites and Hybrid Materials
·
2024
·Vol. 7
·期 5
·1-15
·
IF 23.2
Meng Xiangwei,Qiao Jing,Liu Jiurong,Wu Lili,Wang Zhou,Wang Fenglong
The fabrication of nano-materials with delicate microstructure design and suitable multicomponent allocation is considered as a promising approach to meet the requirements of lightweight, high efficiency, and broadband absorption for electromagnetic wave (EMW) absorbers. Toward this end, nickel/carbon@zirconium dioxide core–shell nanofibers composited with polyurethane were successfully prepared through flexible electrospinning, carbonization, and a subsequent resin curing process. Profiting from the synergistic coactions of constituents and unique morphology, the ternary nanocomposites displayed the minimum reflection loss of − 61.7 dB at 17.1 GHz, and an ultra-broad bandwidth up to 8.3 GHz. In-depth investigation through electromagnetic parameters analysis and electric field distribution simulation indicated that the introduction of zirconium dioxide brought about the optimal impedance matching, while the existence of nickel and abundant heterogeneous interfaces contributed to diverse attenuation pathways, including interface polarization, dipoles polarization, conductivity loss, and magnetic loss. Thus, this study paved new research avenues for the design and synthesis of one-dimensional high-performance microwave absorbing materials, and enriched the application range of polyurethane matrix composites.
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JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2024
·Vol. 39
·期 4
·962-967
·
IF 1.3
Liu Zhigang,Tang Zezheng,Yang Lirong,Wang Chunmei,Xie Yuantao,Liu Yisen
The retarding effect of protein retarder on phosphorus building gypsum (PBG) and desulfurization building gypsum (DBG) was investigated, and the results show that protein retarder for DBG can effectively prolong the setting time and displays a better retarding effect, but for PBG shows a poor retarding effect. Furthermore, the deterioration reason of the retarding effect of protein retarder on PBG was investigated by measuring the pH value and the retarder concentration of the liquid phase from vacuum filtration of PBG slurry at different hydration time, and the measure to improve the retarding effect of protein retarding on PBG was suggested. The pH value of PBG slurry (<5.0) is lower than that of DBG slurry (7.8–8.5). After hydration for 5 min, the concentration of retarder in liquid phase of DBG slurry gradually decreases, but in liquid phase of PBG slurry continually increases, which results in the worse retarding effect of protein retarder on PBG. The liquid phase pH value of PBG slurry can be adjusted higher by sodium silicate, which is beneficial to improvement in the retarding effect of the retarder. By adding 1.0% of sodium silicate, the initial setting time of PBG was efficiently prolonged from 17 to 210 min, but little effect on the absolute dry flexural strength was observed.
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