COLLOIDS AND SURFACES B-BIOINTERFACES
·
2018
·
IF 3.997
Bo Bi,Hui Liu,Wenting Kang,Renxi Zhuo,Xulin Jiang
The in-situ forming injectable hydrogels have received much attention as scaffolds in the biomedical field, providing a minimally invasive surgical procedure to fill the damaged area. In the present work, carboxymethyl chitin (CMCH) synthesized homogenously was further functionalized with tyramine , resulted in a new injectable enzymatically crosslinked in-situ forming hydrogel under physiological conditions. This new tyramine-modified carboxymethyl chitin (CMCH-Tyr) hydrogel showed much better mechanical properties than those of the thermosensitive in-situ forming physical-crosslinking CMCH hydrogel. The CMCH-Tyr hydrogels remained stable under physiological conditions and could be degraded by lysozyme. The gelation time, strength and biodegradation rate of the CMCH-Tyr hydrogels can be adjusted by varying the concentrations of the horseradish peroxidase and H 2 O 2 in the certain range. In vitro cytotoxicity assays and in vivo in-situ injection study showed non-toxicity, favorable gel formation, and good tissue biocompatibility of the enzyme-catalyzed CMCH-Tyr hydrogel. Thus, the biodegradable and biocompatible CMCH-Tyr hydrogels may hold great potential for three dimensional cell culture and tissue engineering.
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DOI
高影响因子
Nano Energy
·
2020
·
IF 16.602
Xiang Chu,Xun Zhao,Yihao Zhou,Yihan Wang,Xueling Han,Yilin Zhou,Jingxin Ma,Zixing Wang,Haichao Huang,Zhong Xu,Cheng Yan,Haitao Zhang,Weiqing Yang,Jun Chen
Developing lightweight, flexible, and foldable electrodes with decent mechanical durability and electrochemical activity is a highly desirable goal for solid-state electrochemical energy storage devices yet remains a formidable challenge to overcome. Herein, we invent a freestanding robust PANI membrane via introducing the dynamic boronate bond to bridge rigid PANI chains with complaint polyvinyl alcohol (PVA) chains. The resultant PANI/PVA membrane (PPM) exhibits remarkable elasticity (17.8% strain) along with excellent tensile strength (33.7 MPa), outperforming the majority of existing state-of-the-art flexible electrochemical PANI membranes. Additionally, the PPM can be further assembled into a wearable solid-state supercapacitor with high electrochemical performance as well as decent mechanical durability. The lightweight, flexible, and foldable PANI membrane represents a great advancement in electrode materials for next-generation wearable solid-state electrochemical energy storage devices.
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DOI
高影响因子
JOURNAL OF CHEMICAL PHYSICS
·
2024
·Vol. 160
·期 17
·
IF 3.1
Liu Yaqi,Liu Zhuo,Chen Yijing,He Jing,Niu Yuqing,He Yuwei,Wang Yanjie,Ju Yun,Jiang Jie,Zhang Hong,Qiao Lina
Fatty acids from cooking fumes and hypochlorous acid (HOCl) released from indoor cleaning adversely affect respiratory health, but the molecular-level mechanism remains unclear. Here, the effect of cooking oil fumes [palmitic acid (PA), oleic acid (OA), and linoleic acid (LA)] on lung model phospholipid (POPG) hydrochlorination mediated by HOCl at the air–water interface of the hanged droplets was investigated. Interfacial hydrochlorination of POPG was impeded by OA and LA, while that of POPG was facilitated by PA. The effect on POPG hydrochlorination increased with the decrease in oil fume concentration. A potential mechanism with respect to the chain length of these oil fumes, regardless of their saturation, was proposed. PA with a short carbon chain looses the POPG packing and leads to the exposure of the C=C double bonds of POPG, whereas OA and LA with a long carbon chain hinder HOCl from reaching the C=C bonds of POPG. These results for short chain and low concentration dependence suggest that the decay of oil fumes or the conversion of short-chain species by indoor interfacial chemistry might be adverse to lung health. These results provide insights into the relationship between indoor multicomponent pollutants and the respiratory system.
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DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Lu Zeng,Xinxin Xu,Lingling Guo,Zhongxing Wang,Hongliu Ding,Shanshan Song,Liguang Xu,Hua Kuang,Liqiang Liu,Chuanlai Xu
To ensure food quality and prevent histamine (HA) toxicity, a rapid and direct method of detecting HA is required. In this work, we prepared a monoclonal antibody (mAb) against HA using a hapten produced by the introduction of a phenyl-containing linker. The novel mAb exhibited high sensitivity against HA as determined by ELISA, with a half-maximal inhibitory concentration of 21.51 ng/mL. A gold nanoparticle-based immunosensor was fabricated for rapid detection of HA in fish samples. After optimizing the immunosensor, a visual limit of detection (LOD) and a calculated LOD were 0.25 mg/kg and 10.48 μg/kg for HA, respectively. Recovery rates from the spiked fish samples ranged from 87.33% to 104.67% with the coefficient of variation below 10.82%. Concurrently, the whole process in testing real sample was completed within 15 min, and all results were well confirmed and comparable by liquid chromatography-mass spectrometry and the commercial test strip. These data revealed that the proposed immunosensor could be used as a monitoring tool for the rapid and direct detection of HA in fish samples.
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DOI
高影响因子
JOURNAL OF INORGANIC BIOCHEMISTRY
·
2020
·
IF 3.212
Chuhan Zhang,Mingming Zhao,Hangjin Zou,Xinming Zhang,Rongtian Sheng,Yang Zhang,Boyu Zhang,Chenye Li,Yanfei Qi
A new composite, AgPW@PDA@Nisin, with shell-core structure was successfully synthesized by a polydopamine (PDA) surfaced conjugated nisin (an antibacterial 34 amino acid polycyclic peptide) as shell and polyoxometalates (Ag 3 PW 12 O 40 = AgPW) as core. The composite was characterized by the zeta potential , scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray diffraction analysis (XRD), fourier transform infrared (FT-IR). The AgPW@PDA@Nisin showed flower hierarchical structure and potential antibacterial activity against S. aureus ATCC29213. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of it were 4 and 32 μg/mL. AgPW@PDA@Nisin nanoflowers-induced bacterial death bears the characteristic of cell morphology, membrane integrity and permeability changing, nucleotide leakage. It indicated that the AgPW@PDA@Nisin interfere with the cell membrane, resulting in antibacterial activity against S. aureus. The cytotoxicity of the nanoflowers was low on HDF-a (human dermal fibroblasts) cells. A new class of hybrid inorganic-organic nanoflowers based on polyoxometalates and nisin with enhanced antibacterial properties can be developed for food preservation.
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 17
·7671-7681
·
IF 3.591
Fengping Peng,Wanxin Xu,Yunya Hu,Weijie Fu,Haozhen Li,Jingyuan Lin,Yafeng Xiao,Zhe Wu,Wei Wang,Chunhua Lu
Inspired by microorganisms in nature, a new type of waste-energy-driven catalytic film was explored for the first time using magnetically actuated artificial cilia. Due to its singular characteristic ciliary movement, the inner-motile catalytic film is capable of capturing waste mechanical energy from flows, which can unexpectedly drive electrochemical reactions in solutions. Based on this, the piezoelectric deposition of Ag nanoparticles was achieved for the first time, which makes Ag nanoparticles distribute more evenly on the body of ZnO nanowires, enhancing the catalytic performance dramatically. Moreover, the influence of Ag nanoparticles on the piezoelectric catalysis was also detected, which can boost the deeper understanding of the piezo-catalytic mechanism. In summary, the inner-motile strategy facilitates the realization of waste-energy-driven catalytic technology, providing a new working prototype for driving the piezo-chemical reaction.
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DOI
高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 27
·9440-9448
·
IF 7.059
Jiachen Wang,Kuikui Zhang,Jing Wang,Menghu Zhang,Yunlei Zhou,Jing Cheng,Desheng Kong
An intrinsically stretchable conductor with a natural deformability is a fundamental building component for stretchable and wearable electronics. The large variations of conductance upon mechanical deformations often lead to electronic instability at the system level. Here, an elastomeric nanocomposite mesh conductor is introduced, which exhibits a series of desirable properties including strain-invariant conductance, mechanical compliance, and excellent breathability. Selective laser ablation enables the facile procedure to create the mesh from a silver nanowire/thermoplastic polyurethane nanocomposite. The hollow mesh design effectively accommodates the strains to achieve stable conductance during tensile deformations. Demonstrations of wearable heaters and electromyogram sensors show the practical suitability of the nanocomposite mesh conductor for uses in epidermal electronic devices. The structural design and engineering strategy reported in this study represent a generic approach for the deterministic and versatile manipulation of intrinsically stretchable conductors.
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DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Chaoqun Niu,Mingke Zhang,Guangping Chen,Bokai Cao,Jiwei Shi,Jie Du,Yong Chen
Polyacrylate polymer is a promising polymer matrix for gel polymer electrolyte (GPE) in lithium-ion batteries . Herein, in-situ polymerized poly(ethylene glycol phenyl etheracrylate) (PEGPEA) based GPE combined with 1 M LiPF6 in ethylene carbonate/dimethyl carbonate/ethyl methyl carbonate (EC/DMC/EMC, 1:1:1 in volume) solvents was introduced. The maximum recoverable strain of the in-situ polymerized PEGPEA-GPE was up to 99%. The outstanding interfacial compatibility between PEGPEA-GPE and the lithium electrode was also obtained. Surprisingly, lithium dendrite was effectively suppressed in charge-discharge cycling because of polymer-enhanced solid electrolyte interphase (SEI) and excellent contact interface. Furthermore, the PEGPEA-GPE exhibited wide electrochemical stability window up to 4.9 V versus Li + /Li, and achieved an ionic conductivity of 3.35 × 10 −3 S cm −1 at 25 °C. When used as electrolyte, the Li[Ni 0.5 Co 0.2 Mn 0.3 ]O 2 /PEGPEA-GPE/Li batteries showed high discharge capacity retention rate of 97.5% after 70 charge-discharge cycles and considerable discharge rate capability, i.e., 155 mAh g −1 0.2C, 142 mAh g −1 0.5C, 120 mAh g −1 1C, 60 mAh g −1 2C. These results demonstrate that this highly elastic in-situ polymerized PEGPEA-GPE is a potential electrolyte system for high-performance polymer electrolyte lithium-ion batteries and has excellent application prospects in wearable and flexible batteries.
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DOI
高影响因子
Advanced Materials Technologies
·
2024
·Vol. 9
·期 4
·2301678
·
IF 6.4
Muxue Wang,Han Wang,Jing Cheng
Diabetes mellitus has become a serious public health problem worldwide. Current home-based glucose testing, including fingerstick blood testing and continuous glucose monitoring, suffers from low compliance and potential infection. Non-invasive glucose detection, with the advantages of pain-free, easy-to-operate, and low-cost, is expected to significantly improve the experience of glucose testing at home for diabetic patients. Here, an enzymatic biosensing platform with high sensitivity and high stability is developed based on a conductive nanomesh composed of interconnected metal-organic frameworks (MOF). The as-prepared enzyme-encapsulated MOF nanomesh exhibits uniform morphology, regular structure, superior catalytic performance, and outstanding electrical conductivity. The glucose sensor modified by enzyme-encapsulated MOF nanomesh demonstrates a considerably high sensitivity of 86.86 µA m m −1 cm −2 with a limit of detection of 16.57 µ m , and remains stable for 16 days of usage. Detection of real saliva samples matches well with the commercial salivary glucose assay kit with an accuracy >93%, and a high correlation with blood glucose with Pearson's r > 0.7. Therefore, the presented enzyme-encapsulated MOF nanomesh biosensor holds great potential in salivary glucose testing and provides a novel strategy for noan-invasive glucose detection.
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DOI
高影响因子
Advanced Materials Technologies
·
2022
·Vol. 7
·期 7
·2101312
·
IF 8.856
Xiuzhu Lin,Yu Bing,Fan Li,Haixia Mei,Sen Liu,Teng Fei,Hongran Zhao,Tong Zhang
Electronic skins (e-skins) are a promising design paradigm for health care systems and human–machine interactions. Piezoresistive sensors made with simple structures, high sensitivity, mass production methods, light weight, and comfort for long-term wearing and physiological signal monitoring remain a challenge and are urgently desirable. Here, a breathable and lightweight all-nanofiber piezoresistive (ANFP) sensor is presented, which is composed of three layers of electrospun nanofibers (NFs). A specific interpenetrating network of conductive polyvinylpyrrolidone NFs coated by polypyrrole (PVP@PPy) and insulating polyacrylonitrile NFs is constructed by controlling the vapor growth position of PPy to enhance the sensitivity. The ANFP sensor can achieve the real-time monitoring of multiple parts of physiological signals, and a wireless detection system is designed for the online monitoring of human pulses. The NF network endows excellent breathability and heat dissipation to the ANFP sensors during practical application, which ensures comfort and device stability during long-term wearing. Finally, a pressure sensing array with 5 × 5 pixels is fabricated to demonstrate the potential applications in spatial pressure detection. This work provides a viable strategy to improve the wearability of e-skins, which can promote health care and human–machine interaction applications.
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DOI
高影响因子
Advanced Optical Materials
·
2022
·Vol. 11
·期 5
·2202475
·
IF 10.05
Qian Chen,Mingming Zhang,Fangxu Dai,Lili Zhao,Shuyang Liu,Huimin Zhao,Hong Zhou,Lihua Teng,Weigao Xu,Lei Wang,Jun Xing
Organic–inorganic tin (Sn)-based halide perovskites have attracted special attention due to their outstanding photophysical properties and eco-friendly nature. However, the instability of Sn-based perovskites is still a pressing issue that needs to be addressed. Here, a new lead-free hybrid Sn(IV) bromide hybrid (4-APEA) 2 SnBr 6 (4-APEA: 2-(4-aminophenyl)ethylammonium) is synthesized with remarkable stability. This compound has strong electron–phonon coupling, resulting in excitons self-trapping and broadband yellow emission with a photoluminescence peak at 566 nm. The bare (4-APEA) 2 SnBr 6 shows impressive emission stability in the air; maintains 90% of photoluminescence quantum yield under ultraviolet light irradiation over 2000 h (T 90 > 2000 h), representing the most stable halide hybrids. The excellent stability is profit from the stable valence state and few defect state densities. The findings show the promising prospect of environment-friendly organic–inorganic halide perovskites and their usage in optoelectronic applications.
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2021
·
IF 10.618
Haiyan Song,Xigui Zhou,Zhiguang Zhu
NAD + -dependent dehydrogenase-based biosensors usually suffer from the low accuracy due to the interference of cofactors in the complex environment, such as fermentation samples. Herein, we demonstrate the example of an integrated biosensor device that can be applied for analyzing xylose fermentation samples. The device is composed of one chamber for the elimination of NAD + and NADH in the fermentation broth and another chamber for the sample analysis. In the first chamber, a cyclic voltammetry method coupled with Ni foam as a working electrode was proven to be effective in removing NAD + and NADH in the fermentation broth. In the other chamber, xylose dehydrogenase , as the recognition element, and diaphorase, used for the regeneration of bioactive NAD + mediated by vitamin K 3 , were co-immobilized on the surface of the magnetic nanoparticles , which was further coated onto a magnetic glassy carbon electrode. The detection range of the constructed biosensor was from 0.5 to 10 g L −1 with a detection limit of 0.01 g L −1 at a signal-to-noise ratio of 3. Moreover, the biosensor achieved high selectivity, recovery, reproducibility, and good long-time stability when analyzing real xylose fermentation samples, suggesting its promising application potential.
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DOI
高影响因子
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