Nature Communications
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2019
·Vol. 10
·期 1
·1-10
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IF 11.878
Yang Weifeng,Gong Wei,Hou Chengyi,Su Yun,Guo Yinben,Zhang Wei,Li Yaogang,Zhang Qinghong,Wang Hongzhi
Developing fabric-based electronics with good wearability is undoubtedly an urgent demand for wearable technologies. Although the state-of-the-art fabric-based wearable devices have shown unique advantages in the field of e-textiles, further efforts should be made before achieving “electronic clothing” due to the hard challenge of optimally unifying both promising electrical performance and comfortability in single device. Here, we report an all-fiber tribo-ferroelectric synergistic e-textile with outstanding thermal-moisture comfortability. Owing to a tribo-ferroelectric synergistic effect introduced by ferroelectric polymer nanofibers, the maximum peak power density of the e-textile reaches 5.2 W m −2 under low frequency motion, which is 7 times that of the state-of-the-art breathable triboelectric textiles. Electronic nanofiber materials form hierarchical networks in the e-textile hence lead to moisture wicking, which contributes to outstanding thermal-moisture comfortability of the e-textile. The all-fiber electronics is reliable in complicated real-life situation. Therefore, it is an idea prototypical example for electronic clothing.
研究领域:
材料科学
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电子学
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纺织工程
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可穿戴技术
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2022
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IF 5.999
Zeyu Zhao,Jia Yan,Tao Wang,Yanxue Ma,Maobin Xie,Xuan Mu,Xiaoqin Wang,Zhaozhu Zheng,Yuling Li,Gang Li
The present paper describes a novel multi-functional Calotropis gigantea (CG) fabric with durable antibacterial property and comfortable wearability for various applications. First, antibacterial microspheres (AMs) were prepared by self-assembly of silk fibroin (SF), chitosan (CS) and nano-silver microspheres (NSMs). Oxygen low-temperature plasma (OLTP) treatment was used to improve the adhesion between AMs and CG yarn. The AMs modified CG fabric has soft hand feeling, high moisture regain (10.37 ± 1.87%), good breathability, strong wrinkle resistance, and durable antibacterial properties. The antibacterial rate of the modified CG fabric against Escherichia coli ( E. Coil ) and Staphylococcus aureus ( S. Aureus ) is as high as 99.9 ± 0.1%, and it still has an antibacterial activity after washing 20 times (90.24 ± 0.65% and 80.25 ± 1.14%, respectively). The in vivo biocompatibility test showed clear signs of angiogenesis at the implantation site in the rats. Thus, this study offers the foundation for the development of functional CG fiber-based biomedical textiles.
研究领域:
纺织科学
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材料科学
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生物医学工程
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纳米技术
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Anwar Hosen,Juan Qian,Jianchao Zhan,Man Zhou,Ke Quan,Imran Hossen,Fazle Rabbe,Shaoju Fu
Smart multifunctional textiles are strongly demanded for their advantages of ensuring comfort, safety, and durability for human security protection, but they remain greatly challenged in the structure design and performance improvement. Herein, a novel Coolmax/cotton woven fabric with dual-faced structures (DFS) is fabricated, then spray coated with polydimethylsiloxane composite, and its comprehensive characterizations are fully evaluated. Janus configuration facilitates rapid directional water transport from the hydrophobic inner layer to the hydrophilic outer layer within 4.6 ± 0.45 s, thereby substantially enhancing thermal-moisture comfort under conditions of intense physical exertion and elevated temperatures. Flame retardancy is also imparted through a facile single-layer dip-coating strategy employing chitosan (CS)/phytic acid (PA)/ TiO 2 . Notably, introducing only 0.5 wt.% TiO 2 led to a significant increase in char residue, reaching at 7.61%. Sample CS-PA@TiO 2 (titanium dioxide) showed self-extinguishing behavior in the vertical burning test, as well as a significantly enhanced limiting oxygen index (LOI) to 35.3 ± 1.93 from 19.03 ± 1.25 for pure DFS fabric, and those of peak heat release rate and total heat release for sample CS-PA@TiO 2 is drastically declined by 65% and 47%, respectively. Moreover, the fabric maintained adequate mechanical strength and abrasion resistance, indicating excellent durability under repeated wear. This work will provide synergistically integrated multifunctional textiles through a simple, scalable approach.
研究领域:
纺织工程
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材料科学
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消防安全工程
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功能材料
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可穿戴技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Liangyuan Qi,Wei Cai,Tianyang Cui,Bichen Lin,Zefan Feng,Jing Gao,Guangyong Jiang,Wenyue Guo,Chuanshen Wang,Bin Fei,Jixin Zhu,Yuan Hu,Weiyi Xing,Lei Song
Even though the huge potential in significantly decreasing the energy consumption for cooling buildings and the human body is presented by radiative cooling technology, there is still a long way to realize its real-commercial application, considering comprehensive performances, such as safety, comfort, longevity, and production cost. Inspired by the biological micro-nano structures of Cyphochilus, we develop a one-step, large-scale, and low commercial-cost method to prepare multifunctional composite textiles, with effective cooling, fire safety, and directional water transportation. The high emissivity (96.8 %) in the atmospheric window and high reflectivity (97.1 %) in the solar waveband are successfully achieved. When exposed to direct sunlight, composite textiles can achieve up to 5 °C below commercial textiles at a solar intensity of 750 W•m −2 . Besides, the directional water transportation and the excellent mechanical strength further improve the practical application. This work proposes a radiatively cooled composite textile to achieve personal thermal management and fire protection to meet the needs of specialty garments such as firefighting suits.
研究领域:
材料科学
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纺织工程
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热能工程
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生物启发
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可持续技术
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Jinmiao Chen,Shaohua Zhang,Yuejie Dou,Guangting Han,Na Wang,Zhenghai Qu,Chunguo Liu,Jiwei Li
The high humidity environment created by human breath can easily lead to charge loss in the mask's filter and weaken the mask's filtration effect on aerosols containing bacteria and viruses. Therefore, in this study, a breath moisture-induced electroactive nanofibrous membrane was prepared by incorporating Cu/Zn nanoparticles into cellulose acetate/poly (vinyl butyral) fibers. Adjacent Cu/Zn nanoparticles can form galvanic couples that can be activated by human breath to undergo redox discharge reactions, thus imparting moisture-induced electroactivity to nanofibrous membrane. Based on the moisture-induced electroactivity, nanofibrous membrane demonstrated antibacterial rates of 98.32 % against Escherichia coli ( E. coli ) and 99.06 % against Staphylococcus aureus ( S. aureus ). Moreover, moisture-induced electroactive nanofibrous membrane significantly reduced the titer of Enterovirus 71 (EV71) transmitted through the respiratory tract within 5 min. The excellent antibacterial and antiviral performance of electroactive nanofibrous membrane can be attributed to the synergistic effect of Cu/Zn’s electrical stimulation (ES) interference on the electrodynamics of bacteria and viruses, the generated reactive oxygen species (ROS), and the released metal ions. Benefiting from the increased surface potential from Cu/Zn galvanic couples, moisture-induced electroactive nanofibrous membrane exhibited a filtration efficiency of 99.61 % for PM 0.3 particles while maintaining a low-pressure drop (78 Pa). Meanwhile, electroactive nanofibrous membrane showed excellent wear comfort and non-cytotoxicity. In summary, this moisture-induced electroactive nanofibrous membrane maintains high filtration performance and exhibits excellent antibacterial and antiviral activities, shedding some light on developing novel efficient air filters.
研究领域:
材料科学
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纳米技术
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生物医学工程
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环境科学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2024
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IF 8.3
Gaopeng Wang,Zeming Xie,Wenli Yu,Shihua Mao,Shuaibing Wang,Si Yu Zheng,Jintao Yang
Wearable electronics for long-term monitoring of physiological signals should be capable of removing sweat generated during daily motion, which significantly impacts signal stability, human comfort, and safety of the electronics. In this study, we developed a double-layer polyurethane (PU) membrane with sweat-directional transport ability that can be applied for monitoring strain signals. The PU membrane was composed of a hydrophilic, conductive layer and a relatively hydrophobic layer. The double-layer PU composite membrane exhibited varied pore size and opposite hydrophilicity on its two sides, enabling the spontaneous pumping of sweat from the hydrophobic side to the hydrophilic side, i.e., the directional transport of sweat. The membrane can be used as a strain sensor to monitor motion strain over a broad working range of 0% to 250% with high sensitivity (GF = 4.11). The sensor can also detect simple human movements even under sweating conditions. We believe that the strategy demonstrated here will provide new insights into the design of next-generation strain sensors.
研究领域:
材料科学
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生物医学工程
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可穿戴技术
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传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Applied Materials Today
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2024
·
IF 7.2
Ziqi Wang,Donghua Xing,Rui Yin,Pengfei Zhan,Chuntai Liu,Changyu Shen,Hu Liu
Flexible pressure sensors are in great demand for artificial haptic perception and human-machine interaction with the rapid artificial intelligent revolution. However, high-performance pressure sensors with high sensitivity, wide working range and good comfortability while possessing versatile functions is still a great challenge. Herein, an air-permeable and waterproof conductive cotton fabric (CF) decorated with in-situ reduced silver nanoparticles (AgCF) was prepared for pressure sensor, of which the significant contact effect between conductive fibers and interdigitated electrodes as well as adjacent fibrous skeleton endow it with ultrahigh pressure sensitivity (1134.47 kPa −1 ) and wide sensing range (0–98 kPa). Meanwhile, it also displayed fast response/recovery time (280 ms/220 ms) and long-term durability over 5000 cycles. All these sensing merits and excellent breathability and hydrophobicity make it applicable for wearable electronic devices for various human physical signal monitoring. Owing the high conductivity, the prepared AgCF demonstrated superior electrothermal properties including high electrothermal conversion efficiency (132.12 °C at only 1 V), controllable and stable continuous heating performances (1000 s). In addition, benefiting from the strong reflection from the electron-rich surface and effective attenuation inside the conductive fibrous network, its average electromagnetic interference shielding effectiveness (EMI SE) can reach up to 102.32 dB and 107.62 dB within X and K band, respectively, and the SE also showed good harsh environment durance, enabling it to be high-efficient shielding materials for various application scenarios.
研究领域:
材料科学
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电子学
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可穿戴技术
·
传感器
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电磁干扰屏蔽
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电热性能
✓ 已验证
产品关联
DOI
高影响因子
ENERGY AND BUILDINGS
·
2021
·
IF 5.879
Xiaoyun Zhu,Xinxin Sheng,Jun Li,Ying Chen
Novel heat-storage composite coatings containing microencapsulated phase change material (MPCM) are prepared to enhance the thermal energy storage of the inner walls of an indoor environment. MPCMs with n-octadecane as core and polyurea as shell are synthesized via interface polymerization. They, along with the coatings, are characterized using Fourier transform infrared spectra (FTIR), SEM, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The SEM results show that MPCM can maintain its original morphology and be dispersed uniformly in the coatings with 30 wt% MPCM loads. Moreover, the latent heat capacity of MPCM and the heat-storage coatings are 151.89 J/g and 45.5 J/g, respectively. Other properties, such as thermal stability, temperature time lag, and film-forming are also tested, and the test results indicate excellent performances. After 200 heating-cooling cycles, MPCM and the heat-storage coatings still exhibit good thermal stability. Two reduced-scale test chambers enveloped by wall boards painted with and without MPCM coatings are tested under the same conditions and compared. Overall, the chamber with MPCM coatings can keep a stable temperature of 26-28 °C for approximately 77 min when the heating load is 80 W/m 2 . However, the chamber without PCM coating can only maintain such temperature for 13 min. Thus, the heat-storage coatings can improve the thermal comfort of indoor environments and have a high potential application in building thermal energy storage, especially for old buildings retrofit.
研究领域:
材料科学
·
能源工程
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建筑科学
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热物理学
✓ 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）