Nanostructured Conductive Polypyrrole for Antibacterial Components in Flexible Wearable Devices

被引:22
|
作者
Wu, Yuzheng [1 ,2 ]
Xiao, Dezhi [1 ,2 ]
Liu, Pei [1 ,2 ]
Liao, Qing [3 ]
Ruan, Qingdong [1 ,2 ]
Huang, Chao [1 ,2 ]
Liu, Liangliang [1 ,2 ]
Li, Dan [1 ,2 ]
Zhang, Xiaolin [1 ,2 ]
Li, Wei [3 ]
Tang, Kaiwei [1 ,2 ]
Wu, Zhengwei [5 ]
Wang, Guomin [1 ,2 ,4 ]
Wang, Huaiyu [3 ]
Chu, Paul K. [1 ,2 ]
机构
[1] City Univ Hong Kong, Dept Phys, Dept Mat Sci & Engn, Tat Chee Ave, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Biomed Engn, Tat Chee Ave, Hong Kong, Peoples R China
[3] Chinese Acad Sci, Shenzhen Inst Adv Technol, Ctr Human Tissues & Organs Degenerat, Shenzhen 518055, Peoples R China
[4] Tongji Univ, Sch Med, Shanghai Peoples Hosp 10, Shanghai 200072, Peoples R China
[5] Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Peoples R China
基金
中国国家自然科学基金;
关键词
polypyrrole; nanostructure; antibacterial; electrical stability; flexible-wearable films; MECHANICAL-PROPERTIES; ARTIFICIAL SWEAT; SOLAR-CELLS; THIN-FILMS; BIOCOMPATIBILITY; NANOSHEETS; TEXTILES; VOLTAGE; SKIN;
D O I
10.34133/research.0074
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The power generated by flexible wearable devices (FWDs) is normally insufficient to eradicate bacteria and many conventional antibacterial strategies are also not suitable for flexible and wearable applications due to the strict mechanical and electrical requirements. Herein, polypyrrole (PPy), a conductive polymer with a high mass density, is used to form a nanostructured surface on FWDs for antibacterial purposes. The conductive films with PPy nanorods (PNRs) are found to sterilize 98.2 +/- 1.6% of Staphylococcus aureus and 99.6 +/- 0.2% of Escherichia coli upon mild electrification (1 V). Bacteria killing stems from the membrane stress produced by the PNRs and membrane depolarization caused by electrical neutralization. Additionally, the PNR films exhibit excellent biosafety and electrical stability. The results represent pioneering work in fabricating antibacterial components for FWDs by comprehensively taking into consideration the required conductivity, mechanical properties, and biosafety.
引用
收藏
页数:27
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