Advanced Fiber Materials
·
2023
·Vol. 6
·期 2
·367-386
·
IF 16.1
He Guifang,Ning Fanggang,Liu Xiang,Meng Yaxin,Lei Zhiwei,Ma Xianda,Tian Mingwei,Liu Xuqing,Zhang Xiansheng,Zhang Xueji,Qu Lijun
High-performance wearable electronics are highly desirable for the development of body warming and human health monitoring devices. In the present study, high electrically conductive and photothermal cotton yarns (CYs) with long-term stability were prepared as wearable electronics. The process contains back-to-back decoration of the fiber surface by Ti 3 C 2 T x (MXene) nanosheets, and the poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS) composite, to form a core–shell structure (MP@CY). The addition of a small amount of PEDOT: PSS plays a dual role of protecting the MXene from oxidation and increasing the electrical conductivity. The resulting yarn exhibits excellent electrical conductivity (21.8 Ω cm −1 ), rapid electrothermal response, and superb photothermal conversion capability, supporting its application as an optical/electrical dual-drive heater. A three-dimensional (3D) honeycomb-like textile wearable heater based on MP@CY as weft yarn demonstrates outstanding electrical thermal properties (0–2.5 V, 30–196.8 °C) and exceptional photothermal conversion (130 mW cm −2 , 64.2 °C). Using an Internet of Things (IoT) microcontroller and Espressif (ESP) electronics chip, which are combined with wireless fidelity (Wi-Fi) and smartphone, real-time visualization and precise control of the temperature interface can be achieved. Furthermore, MP@CY-based knitted sensors, obtained by hand-knitting, are utilized for monitoring human movement and health, exhibiting high sensitivity and long-term cycling stability. Graphical Abstract
研究领域:
材料科学
·
纺织工程
·
电子工程
✓ 已验证
DOI
高影响因子
IONICS
·
2020
·Vol. 27
·期 1
·279-288
·
IF 2.394
Hao Baowei,Deng Zhongmin,Bi Shuguang,Ran Jianhua,Cheng Deshan,Luo Lei,Cai Guangming,Wang Xin,Tang Xiaoning
Yarn-shaped supercapacitors are favored due to their small size, high specific capacitance, and light weight. Herein, we reported a distinctive type of ply twist yarn supercapacitor by in situ polymerization of pyrrole on carbon nanotubes (CNTs)/cotton ring spun yarns. CNTs and polypyrrole (PPy) were successfully embedded into the cotton yarns with a ply twist structure. The as-developed electrode exhibited excellent electrical conductivity (20 Ω/cm), good mechanical properties (59.8 MPa, 24.6%), a high specific capacitance of 386.5 mF/cm 2 with the current density of 1 mA/cm 2 , and ideal cycle stability with the retention of 87.8% after 5000 cycles. Meanwhile, the assembled supercapacitor showed a power density of 278.4 μW/cm 2 and an energy density of 13.21 μWh/cm 2 . It also presented outstanding capacitive performance under different angles. This facile ply twist method provided new possibilities for one-dimensional (1D) supercapacitor and flexible wearable electronics applications.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
iScience
·
2024
·
IF 4.6
Guanliang He,Chuang Zhu,Yuze Shi,Yingjia Yu,Yi Wu,Constantinos Soutis,Le Cao,Xuqing Liu
SUMMARY Graphene-based flexible yarn sensors are promising due to their exceptional conductivity and user-friendly properties, but ensuring stable graphene adsorption on fibers for long-term durability remains challenging. Herein, we produce a flexible polydopamine (PDA)-modified cotton yarn via a simple dip-coating process using a self-made Sodium Deoxycholate (SDC)-modified graphene dispersion, avoiding non-biodegradable, corrosion-prone metallic coatings. The resulting sensor exhibits low electrical resistance (as low as 21.1 Ω±0.2/cm), high bending sensitivity (resistance change rate of 3.557±0.002 for bending ranges from 40% to 100%), and outstanding durability over 2000 flexural bending cycles. It can monitor various human body movements and physiological states and be integrated into wearable electronic textiles (e-textiles) for applications like monitoring knee movements, recognizing hand gestures, and detecting thoracic respiratory status. This work highlights the sensor's potential in personal and public healthcare applications.
研究领域:
材料科学
·
生物医学工程
·
纺织科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2020
·
IF 3.784
Weishi Zheng,Chuntao Chen,Xujun Zhang,Xiaodong Wen,Yuanxiang Xiao,Lin Li,Qingbo Xu,Feiya Fu,Hongyan Diao,Xiangdong Liu
We developed a hemostatic material able to quickly stop wound bleeding by successively constructing carboxymethyl chitosan (CMC), gelatin, and alginate onto a cotton gauze surface through a simple layer-by-layer (LbL) process. Briefly, we grafted CMC onto the cotton fibers through an esterification reaction with the hydroxyl groups of the cellulose chains, and then built a gelatin layer on the CMC layer by the ionic reactions with CMC. Finally, we integrated alginate by the lamellar structure through the cross-linking reactions caused by the Ca 2+ ions permeated from the gelatin layer. Characterization analyses demonstrated that the resulting composite dressing possessed high fluid absorption, excellent biocompatibility, and hemocompatibility. A better hemostatic performance was also revealed in animal tests compared with cotton gauze, and it showed a short hemostasis time and a small amount of blood loss in the mouse liver injury model and mouse-tail amputation model. Moreover, the composite dressing also exhibited a significant promotion effect of wound healing in a mouse defect wound model. This new composite dressing, which was prepared by natural raw materials, is a promising candidate for wound dressing and demonstrated great potential in medical applications.
研究领域:
生物医学工程
·
材料科学
·
医学
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2018
·Vol. 26
·期 2
·1383-1397
·
IF 3.809
Liu Gongyan,Xiang Jun,Xia Qiongfen,Li Kaijun,Lan Tianxiang,Yu Ling
Abstract Common cotton gauze was endowed with both superhydrophobic and antibacterial properties by a dip-coating method that involved sequential deposition of positively charged chitosan (CS), negatively charged gallic acid modified silver nanoparticles (GA@AgNPs) and 1H,1H,2H,2H-perfluorodecanethiol (PFDT) with low surface energy on cotton fabrics. After such surface coating, the wettability of gauze surface was converted from superhydrophilic to superhydrophobic with a water contact angle (CA) of 158 ± 2.2° and sliding angle (SA) of 5.2 ± 1.8°, exhibiting water repellency, antifouling ability as well as bacterially antiadhesive activity. Moreover, such PFDT/GA@AgNPs/CS-coated cotton fabrics showed efficiently antibacterial activities against Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ), which was mainly attributed to the synergistic effect of contact-killing of CS and continuous release of Ag + . In addition, it was found that the outer PFDT deposition could act as a barrier to prevent leaching of the AgNPs during laundry, enhancing the antibacterial durability. Graphical abstract
研究领域:
材料科学
·
生物医学工程
·
纺织科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 32
·18147-18161
·
IF 4.22
Zhao Xu,Li Wanwan,Li Fang,Hou Yijun,Lu Tong,Pan Yu,Li Jinlei,Xu Yangyang,He Jianxin
Abstract There is an urgent need to develop flexible yarn-type supercapacitors with excellent electrochemical and mechanical properties for flexible energy storage devices in portable and wearable electronics. In this study, graphene oxide (GO) nanosheets and polyacrylonitrile (PAN)-GO nanofibres were coated on the surface of Ni-plated cotton yarn (NCY) via conjugate electrospinning technology, followed by chemical deposition of a polypyrrole (PPy) layer through in situ polymerisation of pyrrole, obtaining a flexible wearable PPy@GO/PAN-GO@Ni-coated cotton core-spun yarn (PGPG/NCY) electrode. The synergetic effect of NCY, GO/PAN-GO nanofibres, and PPy nanoparticles imparted a hierarchically porous structure, good conductivity, and high tensile strength (71.43 MPa) to this electrode. A flexible symmetric all-solid-state two-ply yarn supercapacitor based on PGPG/NCY electrodes was assembled. This yarn supercapacitor exhibited a high areal specific capacitance (28.34 mF cm −2 ) and high energy density (3.98 μWh cm −2 ), which are superior to those of other yarn supercapacitors. The capacitance retention of this yarn supercapacitor remained at 90.2% after 1000 cyclic voltammetry cycles and 100% at different bending angles; the yarn supercapacitor exhibited high electrochemical performance and cycling stability. Thus, the proposed high-performance yarn supercapacitor based on PGPG/NCY electrodes is promising and widely applicable in wearable devices. Graphical Abstract
研究领域:
材料科学
·
能源存储
·
纳米技术
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 12
·7598-7612
·
IF 4.22
Fang Huan,Li Dongrun,Xu Longquan,Wang Yi,Fei Xu,Tian Jing,Li Yao
Abstract Rapid and convenient treatment of wounds is urgently needed in daily life. It is very essential to finish the dressing and antibacterial treatment in one step. In this study, we developed a reusable ionic liquid-grafted antibacterial cotton gauze wound dressing using 1-vinyl-3-butylimidazolium bromide, 3-aminopropyltriethoxysilane, glycidyl methacrylate and butyl acrylate. The ionic liquid was grafted onto the surface of the cotton gauze through covalent bond to obtain antibacterial properties. The successful grafting was confirmed by Fourier transform infrared spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. The biocompatibility, antibacterial ability and wound healing properties of antibacterial cotton gauze were evaluated. The antibacterial cotton gauze exhibited effective antibacterial ability against Escherichia coli ( E. coli ), Staphylococcus aureus ( S. aureus ) and Candida albicans ( C. albicans ), and they were not cytotoxic to L929 mouse fibroblasts. The reusability experiment showed that the antibacterial cotton gauze had good antibacterial activity even after three repeated antibacterial tests. In addition, the antibacterial cotton gauze effectively promoted skin wound recovery in a rat model. These results indicated that the antibacterial cotton gauze could be used in the biomedical field, especially as an antibacterial wound dressing. Graphical abstract
研究领域:
生物医学工程
·
材料科学
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Lin Li,Dou Du,Chengen He,Lianqing Yu,Wenyang Tang,Shuang Hu,Xinyu Wang,Zhuan Fu,Liangjun Xia,Weilin Xu,Lingxue Kong
Cotton fibers, a natural cellulose , have played a critical role in the development of wearable energy storage, owning to their wearability, integrability, eco-benignity, and cost effectiveness. Graphene, a two-dimensional carbon material, possesses excellent electrochemical properties that can be incorporated into cotton yarns to enhance their performance. However, the conventional chemical reduction processes use corrosive chemical reducing agents that limit their wide application. In the current study, a reduced graphene oxide (rGO)/cotton (RC) yarn supercapacitor was fabricated employing a facile and green hydrothermal approach without the use of any chemical reductants. The reduction efficiency of external GO nanoparticles and the morphology change of internal cotton fiber under different hydrothermal treatments are investigated to explore their effects on the energy storage performance of the resultant RC electrodes and supercapacitors. The RC yarn electrode can reach a capacitance of 13.31 mF cm −1 at of 0.1 mA cm −1 . The assembled asymmetric supercapacitor exhibited a high specific capacitance of 2.99 mF cm −1 (9.54 mF cm −2 , and 381.43 mF cm −3 ) at 0.02 mA cm −1 (0.06 mA cm −2 and 2.55 mA cm −3 ) with a high energy density of 0.42 μWh cm −1 (1.32 μWh cm −2 and 0.05 mWh cm −3 ) at a power density of 10 μW cm −1 (31.84 μW cm −2 and 1.27 mW cm −3 ). This work develops a green versatile strategy for fabricating RC supercapacitors, which may provide a new avenue for wearable energy storage devices.
研究领域:
材料科学
·
能源存储
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2022
·Vol. 13
·期 1
·1-14
·
IF 17.694
He Huaying,Zhou Weikang,Gao Jing,Wang Fan,Wang Shaobing,Fang Yan,Gao Yang,Chen Wei,Zhang Wen,Weng Yunxiang,Wang Zhengchao,Liu Haiqing
Cotton gauze is a widely used topical hemostatic material for bleeding control, but its high blood absorption capacity tends to cause extra blood loss. Therefore, development of rapid hemostatic cotton gauze with less blood loss is of great significance. Here, we develop an efficient hemostatic cotton gauze whose surface is slightly modified with a catechol compound which features a flexible long hydrophobic alkyl chain terminated with a catechol group. Its hemostatic performance in animal injuries is superior to standard cotton gauze and Combat Gauze TM . Its biosafety is similar to cotton gauze and rebleeding hardly occurs when the gauze is removed. Here, we show its hemostatic capability is attributable to the rapid formation of big and thick primary erythrocyte clots, due to its effective controlling of blood movement through blocking effect from tissue adhesion by catechol, blood wicking in cotton, and the hydrophobic effect from long alkyl chains.
研究领域:
生物医学工程
·
材料科学
·
血液学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 42
·25976-25982
·
IF 3.361
Fengyi Cao,Changmin Wei,Gangqing Ma,Like Hou,Rencong Zhang,Lin Mei,Qi Qin
Cotton gauze has been used as a wound dressing since the 19th century, and still plays an important role in current clinical therapies. However, the antimicrobial ability of cotton gauze is limited. In this work, gold nanoparticles (AuNPs) were used as photothermal transduction agents to synthesize modified photothermal antimicrobial cotton gauze. The modified cotton gauze was synthesized by immersing and heating the clinical cotton gauze with AuNPs solution. XPS, ICP-OES, FTIR, XRD and SEM characterizations confirmed that AuNPs were successfully decorated on the surface of cotton gauzes. Besides, the mechanical properties, air and water vapour permeability performance of cotton gauze were not changed after modification. Photothermal antimicrobial experiments confirmed that AuNPs modified on the cotton gauze could convert light to heat, inducing rapid temperature increase of the cotton gauze. And the heat could kill microbial cells permeated in the modified cotton gauze, giving it the potential of being used for photothermal antimicrobial therapy.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2021
·
IF 7.664
Zhen Zeng,Baowei Hao,Daiqi Li,Deshan Cheng,Guangming Cai,Xin Wang
Yarn-based wearable sensors have attracted attention, but it is difficult to fabricate yarn strain sensors with large-scale production, weavability, dyeability and durability toward real applications as wearable electronics and smart textiles. Herein, we report a facile core spun strategy to fabricated spandex/CNT cotton yarns (SCCY) on an industrial spinning machine. For the first time, wearable sensor could be dyed through a simple dip dyeing process with different colors (red, yellow, blue and black). The unique core-sheath structure endowed the yarn with good sensitivity (gauge factor of 21.85 at 300% strain), broad sensing range (0%-300% strain), excellent durability (against dip dyeing, washing, acid and alkali) and abrasion resistance (resistance change 5% after rubber 100 cycles). The sensor yarn was also successfully woven/knitted into textiles and it could be sewn into a fabric. The weavable and dyeable core-spun yarn in the present work provide a feasible way for industrial-scale manufacture wearable sensors.
研究领域:
材料科学
·
纺织工程
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 20
·14586-14597
·
IF 2.993
Ma Yun,Wang Qiufan,Liang Xiao,Zhang Daohong,Miao Menghe
High-performance fiber- and yarn-shaped supercapacitors based on commonly available fiber materials and production technologies are needed to meet the fast developing electronic textile market. In this investigation, natural cotton and stainless steel fibers (SSFs) are blended to form a conductive yarn for constructing novel high-performance two-ply yarn supercapacitors. The supercapacitors show very high areal capacitance, energy density, flexibility and electrochemical stability. The excellent performance is attributed to the high porosity, high conductivity and distributive metal fiber network formed in the blended yarn, coupled with the high electrochemical efficiency of the nanostructured polypyrrole (PPy) and poly(3,4-ethylenedioxythiophene)–poly(styrenesulfonate) (PEDOT:PSS) pseudocapacitance materials. The SSF-cotton blended yarn is economic to produce and retains the flexibility of a normal cotton yarn that is commonly used in apparel textiles. This greatly facilitates the integration of the two-ply yarn supercapacitor into electronic textiles.
研究领域:
材料科学
·
纳米科技
·
能源存储
·
柔性电子学
·
纺织工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）