检索结果-南通市图书馆

Breathable,antifreezing,mechanically skin-like hydrogel textile wound dressings with dual antibacterial mechanisms

在线全文

学校读者我要写书评

暂无评论

Bioactive materials 2023年第3期21卷 313-323页

作者： Sihan Jiang Jiajia Deng Yuhui Jin Bo Qian Wanqi Lv Qiangqiang Zhou Enhua Mei Rasoul Esmaeely Neisiany Yuehua Liu Zhengwei You Jie Pan Department of Orthodontics Shanghai Stomatological Hospital&School of StomatologyFudan UniversityShanghai200001PR China Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases Fudan UniversityShanghai200001PR China State Key Laboratory for Modification of Chemical Fibers and Polymer materials College of Materials Science and EngineeringInstitute of Functional MaterialsResearch Base of Textile Materials for Flexible Electronics and Biomedical Applications(China Textile Engineering Society)Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative MedicineDonghua UniversityShanghai201620PR China Department of Endodontics Shanghai Stomatological Hospital&School of StomatologyFudan UniversityShanghai200001PR China Department of materials and Polymer engineering Faculty of EngineeringHakim Sabzevari UniversitySabzevar***Iran

Hydrogels are emerging as the most promising dressings due to their excellent biocompatibility,extracellular matrix mimicking structure,and drug loading ***,existing hydrogel dressings exhibit limited breathability,poor environmental adaptability,potential drug resistance,and limited drug options,which extremely restrict their therapeutic effect and working ***,the current research introduces the first paradigm of hydrogel textile dressings based on novel gelatin glycerin hydrogel(glyhydrogel)fibers fabricated by the Hofmeister effect based wet *** from the unique knitted structure,the textile dressing features excellent breathability(1800 times that of the commercially available 3 M dressing)and stretchability(535.51±38.66%).Furthermore,the glyhydrogel textile dressing can also withstand the extreme temperature of-80℃,showing the potential for application in subzero ***,the introduction of glycerin endows the textile dressing with remarkable antibacterial property and expands the selection of loaded drugs(e.g.,clindamycin).The prepared glyhydrogel textile dressing shows an excellent infected wound healing effect with a complete rat skin closure within 14 *** these functions have not been achievable by traditional hydrogel dressings and provide a new approach for the development of hydrogel dressings.

关键词： Hydrogel textile Hydrogel dressing Breathable Dual antibacterial Skin regeneration

Joining of activated graphite to 6063 aluminum alloy with Al-Cu-Si-Ni-Mg filler metal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Welding 2020年第4期29卷 60-64页

作者： Yuan Linlin Huang Xiaomeng Chen Xiaoyu Qi Yuefeng Beijing Non-ferrous Metals and Rare Earth Research Institute Beijing 100012China Beijing engineering Research center of new Brazing materials for Electronic Information Beijing 100012China

In this work, 6063 aluminum alloy-graphite joint intended for thermal conductive application were realized by applying Al-CuSi-Ni-Mg brazing filler metal and Ag-Cu-Ti pasted on high density graphite substrate to ensure wetting during the brazing process. The interface reactions during brazing and mechanical properties were studied using scanning electron microscopy(SEM) and shear test *** was formed at the graphite/active Ag-Cu-Ti paste interface due to the reaction between Ti and C, and thus the wettability on the graphite was *** is shown that joint with a good quality can be produced at a brazing temperature of 550 ℃ for 10 *** average tensile strength of the joint is 21 MPa. thus the wettability on the graphite was *** is shown that joint with a good quality can be produced at a brazing temperature of 550 ℃ for 10 min.

关键词： graphite aluminum alloy metallization reactive brazing

Tubulointerstitial nephritis antigen-like 1 is a novel matricellular protein that promotes gastric bacterial colonization and gastritis in the setting of Helicobacter pylori infection

在线全文

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2023年第8期20卷 924-940页

作者： Yongsheng Teng Rui Xie Jingyu Xu Pan Wang Wanyan Chen Zhiguo Shan Zongbao Yan Fangyuan Mao Ping Cheng Liusheng Peng Jinyu Zhang Wenqing Tian Shiming Yang Yongliang Zhao Weisan Chen Quanming Zou Yuan Zhuang Department of Microbiology and Biochemical Pharmacy College of Pharmacy and Laboratory MedicineThird Military Medical UniversityChongqingChina The 940th Hospital of Joint Logistics Support Force of PLA LanzhouChina The Collaborative Innovation center of Tissue Damage Repair and Regeneration Medicine of Zunyi Medical University ZunyiGuizhouChina Department of General Surgery and center of Minimal Invasive Gastrointestinal Surgery Southwest HospitalThird Military Medical UniversityChongqingChina Department of Gastroenterology Chongqing University Cancer HospitalChongqingChina Department of Gastroenterology XinQiao HospitalThird Military Medical UniversityChongqingChina La Trobe Institute of Molecular Science La Trobe UniversityBundooraVICAustralia Department of Gastroenterology Affiliated Hospital of Southwest Medical UniversityLuzhouSichuanChina National engineering Research center of Immunological Products Third Military Medical UniversityChongqingChina

The interaction between the gastric epithelium and immune cells plays key roles in H. pylori-associated pathology. Here, we demonstrate a procolonization and proinflammatory role of tubulointerstitial nephritis antigen-like 1 (TINAGL1), a newly discovered matricellular protein, in H. pylori infection. Increased TINAGL1 production by gastric epithelial cells (GECs) in the infected gastric mucosa was synergistically induced by H. pylori and IL-1β via the ERK-SP1 pathway in a cagA-dependent manner. Elevated human gastric TINAGL1 correlated with H. pylori colonization and the severity of gastritis, and mouse TINAGL1 derived from non-bone marrow-derived cells promoted bacterial colonization and inflammation. Importantly, H. pylori colonization and inflammation were attenuated in Tinagl1−/− and Tinagl1ΔGEC mice and were increased in mice injected with mouse TINAGL1. Mechanistically, TINAGL1 suppressed CCL21 expression and promoted CCL2 production in GECs by directly binding to integrin α5β1 to inhibit ERK and activate the NF-κB pathway, respectively, which not only led to decreased gastric influx of moDCs via CCL21-CCR7-dependent migration and, as a direct consequence, reduced the bacterial clearance capacity of the H. pylori-specific Th1 response, thereby promoting H. pylori colonization, but also resulted in increased gastric influx of Ly6Chigh monocytes via CCL2-CCR2-dependent migration. In turn, TINAGL1 induced the production of the proinflammatory protein S100A11 by Ly6Chigh monocytes, promoting H. pylori-associated gastritis. In summary, we identified a model in which TINAGL1 collectively ensures H. pylori persistence and promotes gastritis.

关键词： Helicobacter pylori TINAGL1 Colonization Gastritis

CsPbBr3 perovskite quantum-dot paper exhibiting a highest 3 dB bandwidth and realizing a flexible white-light system for visible-light communication

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonics Research 2021年第12期9卷 2341-2350页

作者： KONTHOUJAM JAMES SINGH XIAOTONG FAN ANNADA SANKAR SADHU CHUN-HO LIN FANG-JYUN LIOU TINGZHU WU YU-JUNG LU JR-HAU HE ZHONG CHEN TOM WU HAO-CHUNG KUO Department of Photonics&Institute of Electro-Optical engineering College of Electrical and Computer EngineeringNational Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan International Ph.D.Program in Photonics(UST) College of Electrical and Computer EngineeringNational Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan Department of Electronic Science Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China School of materials Science and engineering University of New South WalesSydneyNSW 2052Australia Research center for Applied Sciences Academia SinicaTaipei 11529Taiwan Department of materials Science and engineering City University of Hong KongKowloon TongHong KongChina

We propose a flexible white-light system for high-speed visible-light communication(VLC)applications,which consists of a semipolar blue InGaN/GaN single-quantum-well micro-light-emitting diode(LED)on a flexible substrate pumping green CsPbBr3 perovskite quantum-dot(PQD)paper in nanostructure form and red CdSe QD *** highest bandwidth for CsPbBr3 PQD paper,229 MHz,is achieved with a blue micro-LED pumping source and a high data transmission rate of 400 Mbps;this is very promising for VLC *** 817 MHz maximum bandwidth and a 1.5 Gbps transmission speed are attained by the proposed semipolar blue *** proposed flexible white light system and the high-bandwidth PQD paper could pave the way for VLC wearable devices.

关键词： pumping communication quantum

Spherical Packing Superlattices in Self-Assembly of Homogenous Soft Matter:Progresses and Potentials

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2023年第5期41卷 607-620,I0005页

作者： Yuchu Liu Huanyu Lei Qing-Yun Guo Xianyou Liu Xinghan Li Yuean Wu Weiyi Li Wei Zhang Geng Xin Liu Xiao-Yun Yan Stephen Z.D.Cheng South China Advanced Institute for Soft Matter Science and Technology School of Molecular Science and EngineeringSouth China University of TechnologyGuangzhou 510640China School of Polymer Science and Polymer engineering The University of AkronAkron OH 44325-3909USA State Key Laboratory for Modification of Chemical Fibers and Polymer materials Center for Advanced Low-dimension MaterialsCollege of Material Science and EngineeringDonghua UniversityShanghai 201620China

The construction of complex superlattices using homogenous soft matter has great potential for the bottom-up fabrication of complex,nanoscale *** topic is not only interested in scientific exploring for new concepts of supramolecular crystals with nanometer in sizes,which is about thousand times larger in volumes than those of normal crystals,but also practically important to provide construction principles of metamaterials which are artificially structured materials for controlling and manipulating light,sound,and other physical *** systems have fast assembly kinetics and convenient processing procedures,making them ideal for large-scale superlattice *** this perspective,we focus on recent developments in the construction of complex spherical packing superlattices using homogenous soft *** discuss the general mechanism of those formations of supramolecular motifs and provide an overview of the spherical packing superlattices self-assembled by homogenous soft matters based on different volume ***,we outline the potentials of utilizing this approach in constructing novel superlattices as well as its future challenges.

关键词： Soft matter Self-assembly Spherical packing phases Superlattice Bottom-up construction

Hybridized triboelectric-electromagnetic nanogenerators and solar cell for energy harvesting and wireless power transmission

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第3期15卷 2069-2076页

作者： Yandong Chen Yang Jie Jiaqing Zhu Qixin Lu Yu Cheng Xia Cao Zhong Lin Wang Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 100083China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China Research center for Bioengineering and Sensing Technology Beijing Key Laboratory for Bioengineering and Sensing TechnologySchool of Chemistry and Biological EngineeringBeijing Municipal Key Laboratory of New Energy Materials and Technologiesand Center for Green InnovationSchool of Mathematics and PhysicsUniversity of Science and Technology BeijingBeijing 100083China center on Nanoenergy Research School of Physical Science and Technology Guangxi UniversityNanning 530004China School of materials Science and engineering Georgia Institute of TechnologyAtlantaGA30332-0245USA

Energy harvesting and power transmission is a signiﬁcant challenge for the self-powered technologies towards mobile electronic ***,we propose a hybridized energy harvester to complement each other's strengths for simultaneously scavenging multiple types of energy and then wirelessly transmit the *** harvester consists of electromagnetic-triboelectric nanogenerator units for collecting rotational energy and a commercial water-proof flexible solar *** a rotation rate of 500 rpm,the output current of electromagnetic-triboelectric nanogenerator units can reach about 630 mA through energy ***,the power harvested by hybridized energy harvester can be wirelessly transmitted up to a distance of about 100 cm in real time to charge mobile phone,anemometer,and hygrometer based on self-resonant *** hybridized energy harvester with wireless power transmission has potential applications in large-scale energy collection,long-distance wireless power transmission and sustainably driving mobile electronic devices.

关键词： triboelectric nanogenerator electromagnetic generator solar cell hybridized energy harvester

Magnesium Microspheres and Nanospheres: Morphology- Controlled Synthesis and Application in Mg/MnO_(2) Batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2009年第9期2卷 713-721页

作者： Chunsheng Li Fangyi Cheng Weiqiang Ji Zhanliang Tao Jun Chen Institute of new Energy Material Chemistry and engineering Research center of Energy Storage and Conversion(Ministry of Education) Nankai UniversityTianjin 300071China

In this paper,we report on the morphology-controlled synthesis of magnesium micro/nanospheres and their electrochemical performance as the anode of primary Mg/MnO_(2) *** micro/nanoscale materials with controllable shapes have been prepared via a conventional vapor-transport method under an inert atmosphere by adjusting the deposition *** analysis techniques including SEM,XRD,TEM/HRTEM,and Brunauer Emmett Teller(BET)were carried out to characterize the as-obtained *** results show that the Mg samples are microspheres or micro/nanospheres with specific surface areas of 0.611.92 m^(2)/*** electrochemical properties of the as-prepared Mg and commercial Mg powders were further studied in terms of their linear sweep voltammograms,impedance spectra,and discharge *** comparing the performance of different inhibitors in electrolytes,it was found that NaNO2(2.6 mol/L)as an inhibitor in the Mg(NO_(3))_(2)(2.6 mol/L)electrolyte affords a Mg electrode with high current density and low corrosion *** particular,the Mg sample consisting of microspheres with a diameter of 1.53.0μm and nanospheres with a diameter of 50150 nm exhibited superior electrode properties including negative initial potential(1.08 V),high current density(163 mA/cm^(2)),low apparent activation energy(5.1 kJ/mol),and high discharge specifi c capacity(784 mAh/g).The mixture of Mg nanospheres and microspheres is promising for application in primary Mg/MnO_(2) batteries because of the suffi cient contact with the electrolyte and greatly reduced charge transfer impedance and polarization.

关键词： Magnesium micro/nanospheres vapor-transport method primary Mg/MnO_(2)batteries

2D polyaniline with exchangeable interlayer fluid for fast and stable volumetric dual ion storage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2021年第3期30卷 587-594页

作者： Xiaochen Yang Jiaxing Liang Aditya Rawal Kefeng Xiao Yuan Pu Xiao Li Zhang Ruopian Fang Da-Wei Wang Beijing Advanced Innovation center for Soft Matter Science and engineering State Key Laboratory of Organic Inorganic CompositesBeijing University of Chemical TechnologyBeijing 100029China School of Chemical engineering The University of New South WalesSydneyNSW 2052Australia NMR Facility Mark Wainwright Analytical CentreThe University of New South WalesSydney 2052NSWAustralia Research Centre of the Ministry of Education for High Gravity engineering and Technology Beijing University of Chemical TechnologyBeijing 100029China School of materials Science and engineering Zhengzhou University450001China UNSW Digital Grid Futures Institute The University of New South WalesSydney 2052NSWAustralia

Two-dimensional(2D) layered materials are widely applied in energy devices including lithium-ion battery and supercapacitor due to their unique properties,such as tunable interlayer structure,numerous active sites,large aspect ratio versatile interlayer *** this work,2D layered tungstate acidlinked polyaniline(TALP) presented a fluid-in-solid structure,which allowed facile exchange of the interlayer fluid from moisture to conventional Li^(+) containing *** fast and stable dual ion storage(Li^(+) and PF_(6)^(-)),TALP demonstrates high-rate volumetric capacity(39 mAh cm_(-3) at 2000 mA g^(-1)) and good stability(2000 cycles at 200 mA g^(-1)) within the working potential window of 1.5-4.5 V versus Li^(+)/Li.

关键词： Tungsten acid-linked polyaniline 2D material Fluid-in-solid Lithium-ion capacitor Volumetric

Tuning the reaction path of CO_(2) electroreduction reaction on indium single-atom catalyst:Insights into the active sites

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第5期15卷 4014-4022页

作者： Jiawei Zhang Gangming Zeng Lanlan Chen Wenchuan Lai Yuliang Yuan Yangfan Lu Chao Ma Wenhua Zhang Hongwen Huang College of materials Science and engineering Advanced Catalytic Engineer Research Center of the Ministry of EducationHunan UniversityChangsha 410082China Hefei National Laboratory for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of SciencesDepartment of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026China State Key Lab of Silicon materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China

Modulating the local coordination structure of metal single-atom catalysts(SACs)is extensively employed to tune the catalytic activity,but rarely involved in regulating the reaction pathway which fundamentally determines the product ***,we report that the product selectivity of electrochemical CO_(2)reduction(CO_(2)RR)on the single-atom indium-NxC4-x(1≤x≤4)catalysts could be tuned from formate to CO by varying the carbon and nitrogen occupations in the first coordination ***,the optimal In SAC showed great promise for CO production with the maximum Faradic efficiency of 97%,greatly different from the reported In-based catalysts where the formate is the dominant *** experimental verifications and theoretical simulations reveal that the selectivity switch from formate to CO on In SACs originates from active sites shift from indium center to the indium-adjacent carbon atom,where the indium site favors formate formation and the indium-adjacent carbon site prefers the CO *** present work suggests the active sites in metal SACs may shift from the widely accepted metal center to surrounding carbon atoms,thereby offering a new implication to revisit the active sites for metal SACs.

关键词： CO_(2)reduction single atom catalysts coordination structure product selectivity active sites shift