INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Jingxuan Zhao,Hongxu Liu,Yuanhang Zhao,Yuchao Qi,Ruijia Wang,Ziwei Lv,Yang Yu,Shulin Sun,Yiming Wang,Aihua Xie
Currently, the most effective way to improve the anti-fouling performance of water treatment separation membrane is to enhance the hydrophilicity of the membrane surface, but it can still cause contamination, leading to the occurrence of flux reduction. The construction of a strong hydration layer to resist wastewater contamination is still a challenging task. In this study, a defect-free hydration layer barrier was achieved by grafting chitosan polysaccharide derivatives (CS-SDAEM) on the membrane, which achieved in effective fouling prevention and low flux decline rate. A layer of tannic acid-coated carbon nanotubes (TA@CNTs) has been uniformly deposited on the commercial PVDF membrane so that the surface was rich in -COOH groups, providing sufficient reaction sites. These reactive groups facilitate the grafting of amphiphilic polymers onto the membrane. This modification strategy achieved in enhancing the antifouling performance. The modified membrane achieved low contamination rate with DR of 16.9 % for wastewater filtration, and the flux recovery rate was above 95 % with PWF of 1100 (L·m −2 ·h −1 ). The membrane had excellent anti-fouling performance, which provided a new route for the future development of water treatment membrane.
研究领域:
环境科学
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材料科学
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水处理技术
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产品关联
DOI
PubMed
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2023
·
IF 5.1
Yuxuan Ma,Yajing Sun,Jifeng Guo,Xiao Wei
In this work, a novel in-situ synthetic TA-APTES NPs multifunctional imprinted membrane was fabricated by tanning-inspired coating for selective adsorption of tetrabromobisphenol a (TBBPA) and oil-water emulsion separation. Tannic acid (TA) from natural plants can be cross-linked with 3-aminopropyltriethoxysilane (APTES) by a simple green method to form nanosphere structures with secondary reaction sites. With TA-APTES coating, the membrane can be quickly converted from hydrophobic to super-hydrophilic. TEOS is not only used as a cross-linking agent in imprinting process，but also can be used for TA-APTES hybridization on the membrane surface to introduce stable silicone hydroxyl groups to the membrane surface. The modified membranes showed good hydrophilicity with a water flux of 27,272Lm −2 h −1 at 0.1Mpa, which was 18 times higher than that of pure PVDF membranes. In addition, the separation efficiency of four different types of oil-water emulsions (n-hexane, petroleum ether, dichloromethane and kerosene) reached 99.6%, 98.3%, 95.6%, and 98.7%, respectively. Among them, the oil water emulsion flux of dichloromethane could reach 1000.1. what's more, the prepared membranes also maintained relatively high selective separation efficiencies of TBBPA in oil-water mixtures. To better explain the mechanism of the TBBPA reaction process, the active sites in the TBBPA reaction process were calculated and predicted by density generalization theory (DFT). The Br and phenolic hydroxyl groups on the benzene ring of TBBPA showed higher activity and might be the main reaction sites. In addition, the imprinted composite membranes can be easily regenerated and reused without performance loss through a simple cleaning process. The coating process inspired by natural polyphenol chemistry has the advantage of being green, cost-effective and low energy, showing real potential in multifunctional membrane applications.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
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IF 3.99
Yajun Deng,Guang-Ling Song,Dajiang Zheng,Yanmei Zhang
The combination of antifouling and biocidal methods is an efficient antimicrobial strategy to alleviate environmental biofouling. Herein, a functional organic/inorganic hybrid coating with integrated terpolymer and hybrid Ag@TA-SiO 2 nano spheres was designed and fabricated for antifouling purpose for the first time. The silicon-containing terpolymer (GHM) was fabricated via a simplified free radical co-polymerization process with glycidyl methacrylate (GMA), 2-hydroxyethyl methacrylate (HEMA) and 3-(methacryloxypropyl) trimethoxysilane (MPS). It was expected that the (3-aminopropyl) triethoxysilane (KH550) would become immobilized at the epoxide ring of the GMA and eventually crosslinked, acting as a backbone for the final polymeric coating (PGHMK). Meanwhile, Ag nano-particles were decorated with tannic acid (TA) to have a composite surface structure and loaded with silica (SiO 2 ) to form raspberries. The fabrication of the decorated and loaded antibacterial nano particle Ag@TA-SiO 2 was environmental-friendly, high efficiency and low-cost. The PGHMK coating was expected to act as an effective antifouling barrier, and the embedded Ag@TA-SiO 2 as a functional biocide carrier to collectively inhibit biofouling. To ensure the designed fabrication processes and the products, the microstructural, compositional, morphological changes of the copolymers and nanoparticles were characterized by means of FT-IR, 1 H nuclear magnetic resonance, X-ray photoelectron spectroscopy and atomic force microscopy. The antifouling and bactericidal properties of the composite coatings were also systematically evaluated through measuring the adsorption of protein, growth of bacteria and attachment of microalgae on the coating surface. The results indicated that the coating suppressed 98.6 % of protein adsorption, and its antibacterial efficiency reached 99.1 % and 82.7 % for E. coli and S. aureus , respectively. The coating could also remarkably reduce the attachment of microalgae N. Closterium and Dicrateria zhanjiangensis by 93.5 % and 97.6 %, respectively. It is envisioned that the composite coating may provide a promising antifouling and antibacterial surface for marine engineering structures.
研究领域:
材料科学
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微生物学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2023
·
IF 10
Xiaohu Zhou,Tiantian Chen,Tengda Ma,Lizhao Yan,Haojie Wei,Shuang Liu,Zhiyin Dai,Zhizhong Xie,Jun Deng,Shengxiang Tao,Lihong Fan,Yingying Chu
Bacterial infection is a critical factor in wound healing. Due to the abuse of antibiotics, some pathogenic bacteria have developed resistance. Thus, there is an urgent need to develop a non-antibiotic-dependent multifunctional wound dressing for the treatment of bacteria-infected wounds. In this work, a multifunctional AOCuT hydrogel embedded with CuS@TA-Fe nanoparticles (NPs) through Schiff base reaction between gelatin quaternary ammonium salt – gallic acid (O-Gel-Ga) and sodium dialdehyde alginate (ADA) along with electrostatic interactions with CuS@TA-Fe NPs is prepared. These composite hydrogels possess favorable injectability, rapid shape adaptation, electrical conductivity, photothermal antimicrobial activity, and biocompatibility. Additionally, the doped NPs not only impart fast self-healing properties and excellent adhesion performance to the hydrogels, but also provide excellent peroxide-like properties, enabling them to scavenge free radicals and exhibit anti-inflammatory and antioxidant capabilities via photothermal (PTT) and photodynamic (PDT) effects. In an S. aureus infected wound model, the composite hydrogel effectively reduces the expression level of wound inflammatory factors and accelerates collagen deposition, epithelial tissue, and vascular regeneration, thereby promoting wound healing. This safe and synergistic therapeutic system holds great promise for clinical applications in the treatment of infectious wounds.
研究领域:
生物医学工程
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材料科学
·
伤口护理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2022
·
IF 7.693
Shuzhen Zheng,Wenxiu Qiao,Jianfeng Ma,Yinwen Li,Shoufang Xu,Qianping Ran
Using organic/inorganic nanocomposites to optimize the microstructures of cement hydration products at the micro/nanometre scale is a promising method for improving the mechanical properties of cement-based materials. One type of novel nanohybrid material modified by the flexible autonomous healing polymer poly-TA (thioctic acid) was synthesized and used as a highly efficient mechanical improvement agent for cement paste. The nanohybrids linear LNTS-1 and bulk CNTS-2 were synthesized from silane-coupled nanosilica and alpha thioctic acid. Due to the existence of hydrogen bonds, coordination bonds and dynamic covalent S S bonds, this type of linear poly-TA with a certain amount of calcium content exhibited good self-healing properties. Linear LNTS-1 can effectively improve the macro flexural strength of cement-based materials without a negative effect on their compressive strength. The flexural strength of cement pastes with 1.0‰ LNTS-1 increased by 11.9%, 15.6%, and 16.9% after curing for 3, 7, and 28 d compared with the control cement paste. The results of adsorption experiments show that nanohybrid LNTS-1 has strong adsorption on calcium ions, which affects the formation of cement hydration products.
研究领域:
材料科学
·
土木工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Pengfei Pang,Yiran Bai,Hu Wang,Jiangchao Chen,Furong Zhang,Zhuoyan Yi,Yunyun Zhao,Kunpeng Jiang,Guisheng Zhu,Huarui Xu
The all-solid-state lithium batteries (ASSLBs) are widely acknowledged as the most promising candidate for energy storage devices due to their excellent safety features and high energy density. However, ASSLBs face significant challenges in terms of low ionic conductivity and the formation of lithium dendrites. Excitingly, composite solid-state electrolytes offer promising solutions to critical challenges. Here, we report a PEO-LiTFSI/LGLZTO organic-inorganic composite solid-state electrolytes (O-ICSEs). A high-performance Li 6.4 Ga 0.10 La 3 Zr 11.7 Ta 0.30 O 12 particles, co-doped with Ga and Ta, was incorporated into matrices of poly (ethylene oxide) (PEO) and lithium bis(trifluoro-methylsulfonyl)imide (LiTFSI) to establish a continuous pathway for the transportation of Li + . Additionally, the synergistic effect of Ga and Ta enhances the Li + transport capability within the LGLZTO particles. PEO-LiTFSI/LGLZTO O-ICSEs, which have fast ion transport channels, exhibit exceptional ionic conductivity (4.35 × 10 −4 S cm −1 at 60 °C) and possess a wide and stable electro- chemical window (5.5 V). The Li||PL(Ga 0.10 Ta 0.30 ) 25 ||Li cell demonstrates an outstanding cycle life exceeding 1000 h at a current density of 0.2 mAh cm −2 . The prominent electrochemical performance of PL(Ga 0.10 Ta 0.30 ) 25 O-ICSEs can primarily be attributed to their excellent electrode/electrolyte interfacial compatibility and effective suppression of Li dendrite growth. The proposed PL(Ga 0.10 Ta 0.30 ) 25 O-ICSEs offer a promising solution for designing highly efficient ASSLBs.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2023
·
IF 9.8
Guohui Shi,Bao Zhu,Qi Wu,Jiayin Dai,Nan Sheng
Initially considered a “safe” substitute for perfluorooctanoic acid (PFOA), hexafluoropropylene oxide trimer acid (HFPO-TA) has been extensively used in the production of fluoropolymers for several years, leading to its environmental ubiquity and subsequent discovery of its significant bio-accumulative properties and toxicological effects. However, the specific impact of HFPO-TA on females, particularly those who are pregnant, remains unclear. In the present study, pregnant mice were exposed to 0.63 mg/kg/day HFPO-TA from gestational day (GD) 2 to GD 18. We then determined the potential effects of exposure on gut microbiota and fecal metabolites at GD 12 (mid-pregnancy) and GD 18 (late pregnancy). Our results revealed that, in addition to liver damage, HFPO-TA exposure during the specified window altered the structure and function of cecal gut microbiota. Notably, these changes showed the opposite trends at GD 12 and GD 18. Specifically, at GD 12, HFPO-TA exposure primarily resulted in the down-regulation of relative abundances within genera from the Bacteroidetes and Proteobacteria phyla, as well as associated Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. With extended exposure time, the down-regulated genera within Proteobacteria became significantly up-regulated, accompanied by corresponding up-regulation of human disease- and inflammation-associated pathways, suggesting that HFPO-TA exposure can induce intestinal inflammation and elevate the risk of infection during late pregnancy. Pearson correlation analysis revealed that disturbances in the gut microbiota were accompanied by abnormal fecal metabolite. Additionally, alterations in hormones related to the steroid hormone biosynthesis pathway at both sacrifice time indicated that HFPO-TA exposure might change the steroid hormone level of pregnant mice, but need further study. In conclusion, this study provides new insights into the mechanisms underlying HFPO-TA-induced adverse effects and increases awareness of potential persistent health risks to pregnant females.
研究领域:
毒理学
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微生物学
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代谢组学
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生殖健康
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Yang Yu,Ying Xue,Jingxuan Zhao,Ke Ning,Shulin Sun
The global water pollution problem is increasingly severe, and the wastewater separation technology has received high attention. Polyvinylidene fluoride (PVDF) fiber membranes have a great potential in wastewater treatment. However, its large pore size and high porosity lead to low retention rate and high contamination, which make it impossible to reuse. In this study, it was assumed that the modified nanoparticles CNTs-COOH@TA were prepared by modifying CNTs with tannic acid (TA) through π-π conjugation, and were used as the support layer of the PVDF matrix by electrostatic spinning. The chitosan hydrogel was tightly bound to the PVDF-CNTs-COOH@TA nanofiber support through hydrogen bonding and electrostatic interaction to confer the strong hydrophilicity on the surface of the composite fiber membranes, and the composite PVDF-CNTs-COOH@TA-CS membranes should have excellent performance in PVDF water treatment. The PVDF-CNTs-COOH@TA-CS composite fiber membrane should have high hydrophilicity, high retention rate and reusability. Compared to other separation membranes, the composite membranes achieved effective separation of the oil-in-water emulsion and the dye wastewater while maintaining the rapid permeation of the aqueous phase. The pure water flux of the optimum CS3 composite membrane was 1907.8 Lm -2 h -1 bar -1 , which could completely separate oil-in-water emulsion and retain more than 90% of dyes. In addition, the flux recovery rate (FRR) of the CS3 composite membrane was still more than 86.8% after five cycles, and which had a good antifouling ability. The maximum tensile strength of CS3 increased by 279.7% over PVDF fiber membrane. This innovative approach based on synergistic modification of natural materials provides new ideas for the development of efficient and environmentally friendly wastewater treatment technologies.
研究领域:
环境科学
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材料科学
·
污水处理技术
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Weiting Tang,Li Feng,Xiujuan Wei,Guoyong Lai,Haopeng Chen,Zeheng Li,Xiuhuan Huang,Shuxing Wu,Zhan Lin
The large volume expansion hinders the commercial application of silicon oxide (SiOx) anodes in lithium-ion batteries. Recent studies show that binders play a vital role in mitigating the volume change of SiOx electrodes. Herein, we introduce the small molecule tannic acid (TA) with high branching into the linear poly(acrylic acid) (PAA) binder for SiOx anodes. The three-dimensional (3D) crosslinked network with multiple hydrogen bonds is formed by the incorporation of abundant hydroxyl groups with unique carboxyl groups, which increases the interfacial adhesive strength with SiOx particles. As a consequence, SiOx electrodes based on the PAA-TA binder show an excellent cycling performance with a high specific capacity of 1025 mA h g–1 at 500 mA g–1 after 250 cycles. Moreover, the SiOx||NCM811 full cell exhibits a reversible capacity of 143 mA h g–1 corresponding to 87.4% capacity retention after 100 cycles.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2023
·Vol. 26
·期 2
·2301381
·
IF 3.6
Wenqiang Guo,Beibei Zhou,Yulong Zou,Xili Lu
Near-infrared (NIR) light-responsive shape-memory polymers have drawn increasing attention because NIR light is safe and easy to perform in biological applications. Herein, a novel NIR light-responsive shape-memory polymer composite is developed, which comprises poly( l -lactide) (PLLA) matrix and surface-modified magnesium oxide (MgO) nanoparticles by ferric chloride (FeCl 3 ) and tannic acid (TA) (FeCl 3 –TA/MgO). This design can fully combine the printability and shape-memory effect of PLLA, the excellent bioactivity, and the outstanding photothermal effect of MgO nanoparticles modified by FeCl 3 –TA. The PLLA/(FeCl 3 –TA/MgO) composite scaffolds with a homogeneously porous structure are further fabricated by 4D printing. The synergetic presence of components and fabrication process can endow the prepared composite scaffolds with enhanced mechanical properties and stable NIR light-induced shape-memory effect, as well as antibacterial and antioxidant properties. With 5 wt% FeCl 3 –TA/MgO particles, the scaffold not only has a compress modulus of 0.93 MPa, which is 4 times that of a pristine PLLA scaffold, but also achieves a shape fixation ratio of 95.7% and a shape recovery ratio of 80.9% under NIR light irradiation at 2 w cm −2 . The PLLA/(FeCl 3 –TA/MgO) composites have great potential for application in the field of bone tissue engineering scaffolds.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
DOI
高影响因子
Journal of Trauma and Acute Care Surgery
·
2023
·Vol. 94
·期 4
·608
·
IF 3.4
Wang Wei,Han Peng,Yang Lei,Meng Zhiyun,Gan Hui,Wu Zhuona,Zhu Xiaoxia,Sun Wenzhong,Gu Ruolan,Dou Guifang
BACKGROUND Control of massive hemorrhage from penetrating wound sites is difficult in both combat and civilian settings. A new hemostatic dressing, sodium polyacrylate (PAAs)–based bag (PB), based on PAAs is designed for the first aid of massive penetrating hemorrhage. This study aimed to investigate the efficacy of PB in a penetrating trauma model in swine. METHODS A complex groin penetrating injury was produced in swine by completely excising the femoral vessels and surrounding muscles. After 15-second free bleeding, 18 healthy Guizhou female swine were administered PB (n = 6), CELOX-A (n = 6; Medtrade Products, Crewe, United Kingdom), or standard gauze (n = 6) for hemostatic intervention, followed by 3-minute compression if the bleeding persisted, with subsequent observation continuing for 1 hour. The primary outcomes included initial hemostasis, the incidence of applying manual pressure, and application time. RESULTS Sodium polyacrylate could rapidly absorb the liquid to expand, crosslink with a large number of red blood cells, induce cellular morphological alteration, and promote blood coagulation. Sodium polyacrylate–based bag and CELOX-A initiated and sustained hemostasis for 60 minutes, whereas 0% of the standard gauze achieved initial hemostasis. Maximum number of manual compressions were applied in standard gauze (6 of 6 [100%]), followed by CELOX-A (5 of 6 [80%]), while no manual pressure was required in the case of PB (0 of 6 [0%]). Application time for PB (19.0 ± 4.6 seconds) was significantly less than CELOX-A (169.0 ± 73.5 seconds) and standard gauze (187.8 ± 1.7 seconds). CONCLUSION We prepared a type of superabsorbent PAAs and made an original hemostatic dressing, PB. It can rapidly achieve durable hemostasis in the groin-penetrating trauma hemorrhage swine model without any external compression. The packet form makes PB easy to deploy and remove from wounds. Therefore, PB could be a promising hemostatic candidate for controlling penetrating hemorrhage. Export We designed and prepared an original sodium polyacrylate (PAAs)-based stasis dressing, PB, for the first aid of massive penetrating hemorrhage. It allows durable hemostasis in the groin-penetrating trauma hemorrhage swine model without any external compression.
研究领域:
医学
·
生物材料学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Yanjun Pang,Xinxin Luan,Kefeng Zhang,Yuxiang Liu,Lu Li,Congxia Xie,Jinhui Pang
In this study, we have successfully prepared a freeze-resistant conductive hydrogel with a fast polymerization rate and excellent mechanical and adhesive properties. In this paper, hydrogels capable of rapid polymerization in a short time were prepared based on the TA@WSCA-Zn (WSCA, water-soluble cellulose acetate; TA@WSCA, tannic acid-coated WSCA suspension; TA@WSCA-Zn, a certain amount of zinc chloride (ZnCl 2 ) was added to TA@WSCA suspension;) autocatalytic system at room temperature or low temperature. TA@WSCA-Zn forms a stable reversible quinone-catechol redox reaction to activate the decomposition of ammonium persulfate (APS, initiator) to produce SO 4 −· radicals, which triggers the ultra-fast polymerization of amphoteric ([2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl), SBMA) and acrylic monomers (AA). To improve the frost resistance and electrical conductivity of the hydrogels, we also introduced amphoteric ions, which can provide migration channels for Zn 2+ and greatly increase the migration rate. The TA@WSCA-7.5/PSA hydrogel (PSA, hydrogel prepared by polymerization of acrylic acid and SBMA as monomers;) can achieve tensile strength and toughness of 1.33 MPa and 4.89 MJ m −3 . It can provide excellent electrical conductivity and interfacial adhesion over a temperature range of 25 to −60 °C. In addition, the supercapacitor assembled from the TA@WSCA-7.5/PSA hydrogel electrolyte still has good capacitance characteristics after folding and 10,000 charge/discharge cycles, with a capacitance retention of 93.33 % and an excellent cycle life. This autocatalytic system provides a new strategy and approach for the preparation of freeze-resistant conductive hydrogel electrolytes.
研究领域:
材料科学
·
电化学
·
聚合物化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）