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SSRN 2024年

作者： Youn, Seonyoung Mathur, Kavita Mills, Amanda C. Fiber and Polymer Science Ph.D. candidate North Carolina State University RaleighNC27606 United States Department of Textile and Apparel Technology and Management North Carolina State University RaleighNC27606 United States Department of Textile Engineering Chemistry and Science North Carolina State University RaleighNC27606 United States

The integration of wearable biosignal monitoring systems into daily healthcare has marked a significant advancement in medical care. Yet, the design of these devices often neglects the anatomical specificity of individual bodies, compromising both functionality and comfort. This oversight is particularly pronounced in research on the effective placement of 3-lead electrodes, selecting suitable materials, and customizing fit for women's diverse body shapes. To address this gap, this research introduces a novel design methodology for the development of advanced wearable health-monitoring garments, focusing on smart sports bras as a case study. This approach emphasizes contact pressure (CP) optimization for electrode placement, material selection, and sizing to enhance biosignal acquisition and comfort for the wearer. The study identifies optimal horizontal 3-lead electrode placements and configurations, the most effective across three female participants with diverse body mass indices (BMIs). Furthermore, the research employs a simulation-based contact pressure model (CP model) to precisely engineer desired pressure levels through strategic material selection and sizing adjustments. Guided by the CP model, screen-printed silver/silver chloride electrodes are incorporated into single jersey knit fabric, adjusted by a 20% pattern size reduction for a tailored electrocardiogram (ECG) chest band in the optimized configuration. This achieves a signal-to-noise ratio of 40.9, closely comparable to the 41.9 ratio obtained with traditional wet electrodes, while also exhibiting a higher QRS amplitude above 0.84mV, benchmarked against 12-lead electrodes for reliability. The study further identifies an optimal contact pressure range of 0.56-1.24 kPa for ECG chest bands and a subjective pressure tolerance range of 0.93 to 1.8 kPa in the chest area across female subjects. Finally, the smart sports bra integration demonstrates clear QRS complexes and high biopotential amplitude, whi

关键词： Electrocardiograms

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一步秒级制备超薄多孔Janus膜及其在防水透气电子皮肤的应用（英文）

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science Bulletin 2025年第5期 712-721页

作者：倪宇峰李兵储成臻王少凡贾宇杰曹诗春 Rasoul Esmaeely Neisiany 何创龙陈硕游正伟 State Key Laboratory of Advanced Fiber Materials Institute of Functional Materials College of Materials Science and Engineering Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society) Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine Shanghai Key Laboratory of Lightweight Composite Donghua University College of Biological Science and Medical Engineering Donghua University Department of Materials and Polymer Engineering Faculty of Engineering Hakim Sabzevari University Biotechnology Centre Silesian University of Technology

It remains a challenge for a simple and scalable method to fabricate ultrathin porous Janus membranes for stretchable on-skin ***,we propose a one-step droplet spreading phase separation strategy to prepare an ultrathin and easily collected Janus thermoplastic polyurethane （TPU） membrane within *** metal-ion solvation structure mitigated migration kinetics to delay TPU solution demixing,promoting the further penetration of the coagulating ***,the developed membranes,with an average preparation rate of 25.2 cm2s-1,had a thickness of 5μm,and the water vapor transmission rate was determined to be 663 *** small pore layer having an average pore size of 1.7μm effectively blocked external liquid *** porous Janus TPU membrane coated by liquid metal served as a building block to develop a new generation of monolithic stretchable electronics with simultaneous high permeability and waterproofness.

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Novel Membranes Regenerated from Blends of Cellulose/Gluten Using Ethylenediamine/Potassium Thiocyanate Solvent System

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Journal of Renewable Materials 2019年第1期7卷 41-55页

作者： Yang Yu Ramiz Boy Richard Kotek Fiber and Polymer Science Program College of TextilesNorth Carolina State UniversityRaleighNC 27606USA Department Textile Engineering Çorlu Faculty of EngineeringTekirdağNamık Kemal UniversityTekirdağ59860TURKEY

Current industrial methods for dissolution of cellulose in making regenerated cellulose products are relatively expensive,toxic and dangerous and have environmental problems coming with the hazard chemical *** solve these problems,a novel ethylenediamine and potassium thiocyanate(ED/KSCN)solvent system was developed,that is economical,ecofriendly,and highly *** ED/KSCN solvent system was proven to be a suitable solvent for fabricating cellulose(blended with other polymers)*** this study,gluten was used to develop nonporous membranes with *** method of casting these membranes provided better ones than the former researchers’*** composite membranes’physical and mechanical properties were studied by analysis of morphology,viscosity,crystallinity,thermal behaviors,tensile properties and water absorption of *** showed that membranes are nonporous,uniform,strong,flexible,ecofriendly and *** and physical properties were influenced by the ratio of cellulose/*** blending 40% gluten,the tensile strength of cellulose membrane dropped to 15.89 MPa from 35.11 ***,its elongation at break increased from 35.3% to 57.02% accordingly.

关键词： Cellulose gluten blended film novel ED/KSCN solvent physical and mechanical properties

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Switchable polymerization from Monomer Mixtures to Synthesize Oxygen-Rich Block Copolymers with Dual Recyclability and Degradability

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Angewandte Chemie 2025年

作者： Di Xie Zhi-Hua Jia Yan-Li Zhang Xin-Lei Cai Long-Nv Liu Prof. Guan-Wen Yang Prof. Xiaohui Kang Prof. Xianming Zhang Prof. Yao-Yao Zhang National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang) School of Materials Science and Engineering Zhejiang Sci-Tech University Hangzhou 310018 China Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China College of Pharmacy Dalian Medical University Dalian 116044 China

Switchable catalysis from monomer mixtures has been emerging as a powerful technique to synthesize various useful block copolymers, yet represents a significant challenge in polymer chemistry. Herein, we present the synthesis of well-defined polyacetal/polycarbonate block copolymers through switchable polymerization from mixtures of terminal epoxides, internal epoxides, o -phthalaldehyde (OPA) and CO 2 . The exclusive chemoselectivity of terminal epoxide or internal epoxide was achieved by controlling the reaction atmosphere. The dynamic equilibrium of acetal anion and alkoxy anion is the key to the successful switch from terminal epoxides/OPA copolymerization to internal epoxides/CO 2 copolymerization. Computational studies elucidated the kinetic and thermodynamic preferences underlying this selective polymerization. The acid/base labile nature of the block copolymers enables their sequence-controlled chemical recycling/degradation. These novel polyacetal/polycarbonate block copolymers with facilely sequence-controlled polymerization/depolymerization capabilities will enable their further tailored applications and contribute to the development of a circular plastic economy.

关键词： switchable polymerization block copolymer epoxide sequence control selective depolymerization

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Photo-Induced Self-Reduction Enabling Ultralow Threshold Voltage Energy-Conservation Electrochromism

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SSRN 2022年

作者： Bai, Zhiyuan Li, Ran Ping, Lu Fan, Qingchao Lu, Ziqiu Hou, Chengyi Zhang, Qinghong Li, Yaogang Li, Kerui Ling, Xi Wang, Hongzhi State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai201620 China Department of Chemistry Boston University 590 Commonwealth Avenue BostonMA02215 United States Key Laboratory of Smart Fiber Technology and Products China Textile Industry Association Shanghai201620 China

Electrochromic (EC) devices are highly desired for fields like smart windows, sensing, and display because of their great light modulation ability. However, the high driving voltage of the EC device usually leads to the decomposition of internal electrolyte, degradation of cyclability and higher energy consumption. In this work, based on the finding of the photo-induced self-reduction and coloration of light illuminated viologen/TiO 2 gels (VTGs), we develop VTG-based devices which show remarkable EC performance under an ultralow voltage (~0.1 V). The working energy consumption of a VTG device is at least one order of magnitude lower than those of reported EC devices and other display technologies, giving rise to the larger area/scale optical modulation. Furthermore, through the construction of RGB array displays, large-area EC devices, and flexible EC devices, the universal applicability and multifield potential applications of VTGs were demonstrated. © 2022, The Authors. All rights reserved.

关键词： Electrochromism

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High-Performance 3-D fiber Network Composite Electrolyte Enabled with Li-Ion Conducting Nanofibers and Amorphous PEO-Based Cross-Linked polymer for Ambient All-Solid-State Lithium-Metal Batteries

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Advanced fiber Materials 2019年第1期1卷 46-60页

作者： Chaoyi Yan Pei Zhu Hao Jia Jiadeng Zhu R.Kalai Selvan Ya Li Xia Dong Zhuang Du Indunil Angunawela Nianqiang Wu Mahmut Dirican Xiangwu Zhang Fiber and Polymer Science Program Department of Textile EngineeringChemistry and ScienceWilson College of TextilesNorth Carolina State UniversityRaleighNC 27695-8301USA Department of Physics and Organic and Carbon Electronics Lab North Carolina State UniversityRaleighNC 27695-8301USA Department of Mechanical and Aerospace Engineering West Virginia UniversityMorgantownWV 26506USA

Solid electrolytes have gained attention recently for the development of next-generation Li-ion batteries since they can fun-damentally improve the battery stability and *** various types of solid electrolytes,composite solid electrolytes(CSEs)exhibit both high ionic conductivity and excellent interfacial contact with the *** active nanofib-ers into the polymer matrix demonstrates an effective method to fabricate ***,current CSEs based on traditional poly(ethylene oxide)(PEO)polymer suffer from the poor ionic conductivity of PEO and agglomeration effect of inorganic fillers at high concentrations,which limit further improvements in Li+conductivity and electrochemical ***,we synthesize a novel PEO based cross-linked polymer(CLP)as the polymer matrix with naturally amorphous structure and high room-temperature ionic conductivity of 2.40×10^(−4)S cm^(−1).Li_(0.3)La_(0.557)TiO_(3)(LLTO)nanofibers are incorporated into the CLP matrix to form composite solid electrolytes,achieving enhanced ionic conductivity without showing filler *** high content of Li-conductive nanofibers improves the mechanical strength,ensures the conductive network,and increases the total Li+conductivity to 3.31×10^(−4)S cm^(−1).The all-solid-state Li|LiFePO_(4)batteries with LLTO nanofiber-incorporated CSEs are able to deliver attractive specific capacity of 147 mAh g^(−1)at room temperature,and no evident dendrite is found at the anode/electrolyte interface after 100 cycles.

关键词： Cross-linked PEO polymer Li_(0.33)La_(0.55)TiO_(3)nanofibers Composite solid electrolyte All-solid-state batteries Ambient working temperature

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Biopolymers-based microencapsulation technology for sustainable textiles development: A short review

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Case Studies in Chemical and Environmental engineering 2023年 7卷

作者： Peng, Xiongyi Umer, Muhammad Pervez, Md. Nahid Hasan, K.M. Faridul Habib, Md Ahsan Islam, Md. Shahinoor Lin, Lina Xiong, Xiaorong Naddeo, Vincenzo Cai, Yingjie Hubei Provincial Engineering Laboratory for Clean Production and High Value Utilisation of Bio-based Textile Materials Wuhan Textile University Hubei Wuhan 430200 China School of Computing Huanggang Normal University Huanggang 438000 China Sanitary Environmental Engineering Division (SEED) Department of Civil Engineering University of Salerno via Giovanni Paolo II 132 SA Fisciano 84084 Italy Fiber and Nanotechnology Program University of Sopron Sopron 9400 Hungary South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft Matter South China University of Technology Guangzhou 510640 China Department of Chemical Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh

Microencapsulation methods in product development may result in innovative products with improved stability, functionality, and active chemical release (s). Microcapsules may be made out of biopolymers instead of synthetic polymers because of their biodegradability, lower production costs, and greater accessibility. The potential of biopolymers-based microencapsulation technology in sustainable textiles is substantial despite this field only getting started. This short review explores the role of biopolymers such as chitosan, gelatin, alginate, and cellulose in microencapsulation-mediated sustainable textile technology. The long-term effects of using microencapsulation made from biopolymers are also discussed, with an eye toward sustainability. © 2023 The Authors

关键词： Cellulose Chitosan Functional textiles Microencapsulation Sustainable textiles

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Correction: N-doped carbon nanoparticles on highly porous carbon nanofiber electrodes for sodium ion batteries

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RSC advances 2025年第8期15卷 6370页

作者： Meltem Yanilmaz Bülin Atıcı Jiadeng Zhu Ozan Toprakci Juran Kim Nano-Science and Nano-Engineering Program Graduate School of Science Engineering and Technology Istanbul Technical University Istanbul 34469 Turkey yanilmaz@itu.edu.tr. Textile Engineering Istanbul Technical University Istanbul 34469 Turkey. Smart Devices Brewer Science Inc. Springfield MO 65806 USA. Department of Polymer Materials Engineering Yalova University 77200 Yalova Turkey. Advanced Textile R&D Department Korea Institute of Industrial Technology (KITECH) Ansan 15588 Korea jkim0106@kitech.re.kr.

[This corrects the article DOI: 10.1039/D3RA00635B.].

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Monomer and Excimer Emission in a Conformational and Stacking-Adaptable Molecular System

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Angewandte Chemie 2022年第4期135卷

作者： Xueru Shan Weijie Chi Hengbing Jiang Zhangyuan Luo Prof. Cheng Qian Prof. Hongwei Wu Prof. Yanli Zhao State Key Laboratory for Modification of Chemical Fiber and Polymer Materials Key Lab of Science and Technology of Eco-Textile Ministry of Education College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China Department of Chemistry School of Science Hainan University Haikou 570228 China School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637371 Singapore

A design strategy that combines molecular conformation, alkyl chain length, and charge-transfer effects has been developed to obtain conformational and stacking-adaptable donor-acceptor-π type molecules for precisely regulating the monomer and excimer emission in a single luminous platform under different environments. These fluorophores can exhibit bright monomer emissions when they are in the dispersed state based on their planar conformation. However, when the luminous molecules with short alkyl side chains are in the crystalline state, their molecular conformation can become distorted, further inducing strong intermolecular interactions and staggered π-π stacking for bright excimer emission. More importantly, their dispersed and aggregated states can be reversibly regulated in a phase-change fatty acid matrix, to achieve temperature-responsive fluorescence for temperature monitoring and advanced information encryption.

关键词： Aggregated State Conformational Flexibility Dispersed State Monomer-Excimer Fluorescence Temperature Responsivity

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Vibration-Regulated Multi-State Long-Lived Emission from Star-Shaped Molecules

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Angewandte Chemie 2022年第48期134卷

作者： Yiran Li Dr. Glib V. Baryshnikov Dr. Farhan Siddique Dr. Peng Wei Prof. Hongwei Wu Prof. Tao Yi State Key Laboratory for Modification of Chemical Fiber and Polymer Materials Key Lab of Science and Technology of Eco-Textile Ministry of Education College of Chemistry and Chemical Engineering Donghua University Shanghai 201620 China State Key Laboratory of Molecular Engineering of Polymers Department of Chemistry Fudan University Shanghai 200433 China Laboratory of Organic Electronics Department of Science and Technology Linköping University 60174 Norrköping Sweden

How to utilize molecular vibration to tune triplet-involved emissions in multiple states is highly challenging. Here, star-shaped triphenylamine derivatives have been employed as model systems to understand how molecular vibration affects thermally activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) emissions in multiple states. Nonplanar, star-shaped conformations allow molecules to generate appropriate vibrations in the solution state, facilitating vibronic coupling between their T 1 and T 2 states to generate effective TADF. More importantly, a relatively dispersed state can allow the molecules to efficiently vibrate in the solid state, and a crystalline environment further promotes a more efficient TADF. Lastly, by suppressing molecular vibration to inhibit the TADF, ultra-long RTP was observed upon doping these molecules into polymers. These molecules can be used in information encryption and storage as well as bioimaging.

关键词： Anti-Counterfeiting Bioimaging Room Temperature Phosphorescence Thermal Activation Delayed Fluorescence Vibronic Coupling

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