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Wrinkling Devices: Moisture‐Responsive Wrinkling Surfaces with Tunable Dynamics (Adv. Mater. 24/2017)

Advanced Materials 2017年第24期29卷

作者： Songshan Zeng Rui Li Stephan G. Freire Vivian M. M. Garbellotto Emily Y. Huang Andrew T. Smith Cong Hu William R. T. Tait Zichao Bian Guoan Zheng Dianyun Zhang Luyi Sun Department of Chemical and Biomolecular Engineering and Polymer Program Institute of Materials Science University of Connecticut Storrs CT 06269 USA Department of Mechanical Engineering University of Connecticut Storrs CT 06269 USA Department of Biomedical Engineering University of Connecticut Storrs CT 06269 USA

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Preparing binder-free electrodes for electric double-layer capacitors via a novel centrifugal spinning approach

Preparing binder-free electrodes for electric double-layer c...

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fiber Society 2015 Fall Meeting and Technical Conference - fibers: Where Tradition Meets Innovation

作者： Lu, Yao Chen, Chen Zhang, Xiangwu Fiber and Polymer Science Program Department of Textiles Engineering Chemistry and Science North Carolina State University RaleighNC27695-8301 United States

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Electrochemical performance of electrospun α-Fe2O3/C nanofibers as anodes for lithium-ion batteries

Electrochemical performance of electrospun α-Fe2O3/C nanofi...

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fiber Society 2015 Fall Meeting and Technical Conference - fibers: Where Tradition Meets Innovation

作者： Zhu, Jiadeng Lu, Yao Chen, Chen Jasper, Samuel Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University RaleighNC27695-8301 United States

Hematite iron oxide (α-Fe2O3) has received much attention for use as anode material in lithium-ion batteries not only due to its high theoretical capacity but also to its nontoxicity and low cost. However, its practical applications are limited by its low electrical conductivity as well as the large volume change during Li ion insertion/extraction process. Carbon coated α-Fe2O3 nanofibers were prepared via electrospinning followed by a thermal treatment process in this work, which were used as anode material for lithium-ion batteries. A high reversible capacity of 842 mAh g-1 at a current density of 50 mA g-1 at the 50th cycle was achieved for α-Fe2O3/C nanofibers containing 12.5 wt% carbon. Such excellent electrochemical performance could be attributed to their unique fabric structure and the conductive carbon coating which could shorten Li ion transport distance, improving Li ion reversibility and kinetic properties.

关键词： Nanofibers

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Preparation of a graphene-loaded carbon nanofiber composite with enhanced graphitization and conductivity for biosensing applications

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RSC Advances 2015年第39期5卷 30602-30609页

作者： Li, Dawei Li, Guohui Lv, Pengfei Ullah, Naseeb Wang, Cheng Wang, Qingqing Zhang, Xiangwu Wei, Qufu Key Laboratory of Eco-Textiles Ministry of Education Jiangnan University Wuxi Jiangsu214122 China Fiber and Polymer Science Program Department of Textile EngineeringChemistry and Science North Carolina State University RaleighNC27695-8301 United States

A combined method of electrostatic adsorption and green reduction was successfully employed to synthesize graphene-loaded carbon nanofibers (G/CNFs). The graphene nanoflakes enhanced the degree of graphitization of CNFs. A mixture containing laccase (Lac), G/CNFs and Nafion was used to fabricate a novel biosensor. The G/CNFs facilitated the direct electron transfer between Lac and the modified electrode. A pair of apparently enhanced redox peaks was observed on the modified electrode. The biosensor was investigated using square wave voltammetry, and the biosensor displayed highly efficient electrocatalysis towards catechol with a detection limit of 20 nM (S/N = 3), a sensitivity of 13.5 μA μM-1, and a linear range from 1 × 10-7 to 2.86 × 10-6 M. Moreover, this new biosensor also showed good stability and selectivity, and was employed in measuring catechol concentration in a real water environment successfully. © 2015 The Royal Society of Chemistry.

关键词： Carbon nanofibers

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Reduction of suture associated inflammation after 28 days using novel biocompatible pseudoprotein poly(ester amide) biomaterials

Reduction of suture associated inflammation after 28 days us...

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作者： Hernandez, Karina A. Hooper, Rachel Campbell Boyko, Tatiana Golas, Alyssa R. Van Harten, Michel Wu, D.Q. Weinstein, Andrew Chu, C.C. Spector, Jason A. Division of Plastic and Reconstructive Surgery Weill Cornell Medical College NY United States Department of Fiber Science and Apparel Design and Biomedical Engineering Program Cornell University IthacaNY United States

Sutures elicit an inflammatory response, which may impede the healing process and result in wound complications. We recently reported a novel family of biocompatible, biodegradable polymers, amino acid-based poly(ester amide)s (AA-PEA), which we have shown to significantly attenuate the foreign body inflammatory response in vitro. Two types of AA-PEA (Phe-PEA and Arg-Phe-PEA) were used to coat silk or plain-gut sutures, which were implanted in the gluteus muscle of C57BL/6 mice, while the uncoated control sutures were implanted in the contralateral side. After 3, 7, 14, and 28 days the mean area of inflammation surrounding the sutures was compared. Phe-PEA coating of silk sutures significantly decreased inflammation compared with noncoated controls (67.8 ± 17.4% after 3d [p = 0.0014], 51.6 ± 7.2% after 7d [p © 2014 Wiley Periodicals Inc.

关键词： Amino acids

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Publisher Correction: On the issue of transparency and reproducibility in nanomedicine

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Nature nanotechnology 2019年第8期14卷 811页

作者： Hon S Leong Kimberly S Butler C Jeffrey Brinker May Azzawi Steve Conlan Christine Dufès Andrew Owen Steve Rannard Chris Scott Chunying Chen Marina A Dobrovolskaia Serguei V Kozlov Adriele Prina-Mello Ruth Schmid Peter Wick Fanny Caputo Patrick Boisseau Rachael M Crist Scott E McNeil Bengt Fadeel Lang Tran Steffen Foss Hansen Nanna B Hartmann Lauge P W Clausen Lars M Skjolding Anders Baun Marlene Ågerstrand Zhen Gu Dimitrios A Lamprou Clare Hoskins Leaf Huang Wantong Song Huiliang Cao Xuanyong Liu Klaus D Jandt Wen Jiang Betty Y S Kim Korin E Wheeler Andrew J Chetwynd Iseult Lynch Sayed Moein Moghimi André Nel Tian Xia Paul S Weiss Bruno Sarmento José das Neves Hélder A Santos Luis Santos Samir Mitragotri Steve Little Dan Peer Mansoor M Amiji Maria José Alonso Alke Petri-Fink Sandor Balog Aaron Lee Barbara Drasler Barbara Rothen-Rutishauser Stefan Wilhelm Handan Acar Roger G Harrison Chuanbin Mao Priyabrata Mukherjee Rajagopal Ramesh Lacey R McNally Sara Busatto Joy Wolfram Paolo Bergese Mauro Ferrari Ronnie H Fang Liangfang Zhang Jie Zheng Chuanqi Peng Bujie Du Mengxiao Yu Danielle M Charron Gang Zheng Chiara Pastore Department of Urology Mayo Clinic Rochester MN USA. Department of Physiology and Biomedical Engineering Mayo Clinic Rochester MN USA. Department of Nanobiology Sandia National Laboratories Albuquerque NM USA. Center for Micro-Engineered Materials University of New Mexico Albuquerque Albuquerque NM USA. Departments of Chemical and Biological Engineering University of New Mexico Albuquerque NM USA. Department of Molecular Genetics and Microbiology University of New Mexico Albuquerque NM USA. UNM Comprehensive Cancer Center University of New Mexico Albuquerque NM USA. Cardiovascular Research Group School of Healthcare Science Manchester Metropolitan University Manchester UK. British Society for Nanomedicine Liverpool UK. Institute of Life Science Swansea University Medical School Swansea University Swansea UK. Strathclyde Institute of Pharmacy and Biomedical Sciences University of Strathclyde Glasgow UK. Department of Molecular and Clinical Pharmacology Institute of Translational Medicine University of Liverpool Liverpool UK. Department of Chemistry School of Physical Sciences University of Liverpool Liverpool UK. Centre for Cancer Research and Cell Biology Queen's University of Belfast Belfast UK. National Center for Nanoscience and Technology of China Beijing China. Cancer Research Technology Program Nanotechnology Characterization Laboratory Frederick National Laboratory for Cancer Research Frederick MD USA. Laboratory of Animal Sciences Program Center for Advanced Preclinical Research Frederick National Laboratory for Cancer Research Frederick National Laboratory for Cancer Research Frederick MD USA. Trinity Translational Medicine Institute Department of Clinical Medicine Trinity College Dublin Dublin Ireland. Laboratory for Biological Characterisation of Advanced Materials Trinity Translational Medicine Institute Trinity College Dublin Dublin Ireland. Nanomedicine Group Advanced Materials and Bioengineering Research (AMBER) centre Centre

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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The effects of QAC-silane antimicrobial agents on the physical, mechanical, and thermophysiological properties of novel elastomeric fabrics for burn pressure garments

The effects of QAC-silane antimicrobial agents on the physic...

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fiber Society 2015 Fall Meeting and Technical Conference - fibers: Where Tradition Meets Innovation

作者： Varan, Nilufer Y. Caydamli, Yavuz Hudson, Sam M. Spontak, Richard J. Tonelli, Alan E. Engineering Faculty Department of Textile Engineering Pamukkale University Kinikli Kampusu Denizli20017 Turkey Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University College of Textiles Campus Box 8301 RaleighNC27695 United States Department of Chemical and Biomolecular Engineering North Carolina State University Engineering Building I Campus Box 7905 RaleighNC27695 United States

In this study, novel nylon/spandex elastomeric burn pressure garments were developed with a durable antimicrobial performance using silane and quaternary ammonium compounds (QAC's). A series of physical, mechanical and thermophysiological properties were tested before and after the application of the antimicrobial finish, including air permeability, stiffness, drapeability, bursting strength and extensibility, thermal resistance (Rct) and thermal insulation (in clo units). Antimicrobial tests were performed after 50 washing cycles using AATCC 100 Test Method, and they showed a 99% reduction in bacterial activity for those fabrics treated with the QAC-Silane antimicrobial agents. Physical, mechanical and thermophysiological properties were tested after antimicrobial treatments. A small significant increase was observed in terms of thermal resistance (Rct) (Tog) and isolation (It) (clo) properties for treated fabrics samples. The air permeability, bursting strength and drapeability showed a small significant decrease after antimicrobial finishing, while the elastomeric fabric showed a small but significant increase for fabric stiffness. These results confirm that when these novel pressure garments are used by burn patients, they will not only decrease the incidence of infection but will also provide comfort during prolonged use.

关键词： Antimicrobial agents

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Nanofiber-Based Membrane Separators for Lithium-ion Batteries

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MRS Online Proceedings Library (OPL) 2015年第1期1718卷 157-161页

作者： Mataz Alcoutlabi Hun Lee Xiangwu Zhang Department of Mechanical Engineering University of Texas-Pan American Edinburg TX 78539 USA. Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University Raleigh NC 27695-8301 USA

Nanofiber-based membranes were prepared by two different methods for use as separators for Lithium-ion batteries (LIBs). In the first method, Electrospinning was used for the fabrication of Polyvinylidene fluoride PVDF nanofiber coatings on polyolefin microporous membrane separators to improve their electrolyte uptake and electrochemical performance. The nanofiber-coated membrane separators show better electrolyte uptake and ionic conductivity than that for the uncoated membranes. In the second method, Forcespinning® (FS) was used to fabricate fibrous cellulose membranes as separators for LIBs. The cellulose fibrous membranes were made by the Forcespinning® of a cellulose acetate solution precursor followed by a subsequent alkaline hydrolysis treatment. The results show that the fibrous cellulose membrane-based separator exhibits high electrolyte uptake and good electrolyte/electrode wettability and therefore can be a good candidate for high performance and high safety LIB separators.

关键词： polymer energy storage nanostructure

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Correction: An environmentally benign approach to achieving vectorial alignment and high microporosity in bacterial cellulose/chitosan scaffolds

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RSC Advances 2017年第27期7卷 16737-16737页

作者： Guohui Li Avinav G. Nandgaonkar Youssef Habibi Wendy E. Krause Qufu Wei Lucian A. Lucia Key Laboratory of Eco-Textiles Ministry of Education Jiangnan University 1800 Lihu Avenue Wuxi 214122 Jiangsu Province P. R. China Key Laboratory of Pulp and Paper Science & Technology College of Light Chemical & Environmental Engineering Qilu University of Technology Jinan P. R. China Department of Materials Research and Technology (MRT) Luxembourg Institute of Science and Technology (LIST) 5 Avenue des Hauts-Fourneaux L-4362 Esch-sur-Alzette Luxembourg Fiber and Polymer Science Program North Carolina State University 2401 Research Dr Campus Box 8301 Raleigh NC 27695-8301 USA

Correction for ‘An environmentally benign approach to achieving vectorial alignment and high microporosity in bacterial cellulose/chitosan scaffolds’ by Guohui Li et al., RSC Adv., 2017, 7, 13678–13688.

Correction for ‘An environmentally benign approach to achieving vectorial alignment and high microporosity in bacterial cellulose/chitosan scaffolds’ by Guohui Li et al., RSC Adv., 2017, 7, 13678–13688.

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Molecular design of shape-memory polymer fibers that are thermally responsive

Molecular design of shape-memory polymer fibers that are the...

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fiber Society 2015 Fall Meeting and Technical Conference - fibers: Where Tradition Meets Innovation

作者： Pasquinelli, Melissa A. Tallury, Syamal S. Pordeyhimi, Behnam Spontak, Richard J. Fiber and Polymer Science Program TECS North Carolina State University RaleighNC27695 United States Materials Science and Engineering North Carolina State University RaleighNC27695 United States Nonwovens Institute North Carolina State University RaleighNC27695 United States Chemical and Biomolecular Engineering North Carolina State University RaleighNC27695 United States ExxonMobil Chemical Co. BaytownTX77520 United States

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