Journal
ACS NANO
Volume 8, Issue 6, Pages 6273-6280Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn501732z
Keywords
electrostatic induction; fiber-based generator; mobile medication system
Categories
Funding
- National Natural Science Foundation of China [51322210, 51002056]
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China [201035]
- Fundamental Research Funds for the Central Universities [HUST: 2012YQ025, 2013YQ049, 2013TS160]
- Wuhan National Laboratory for Optoelectronics
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Smart garments for monitoring physiological and biomechanical signals of the human body are key sensors for personalized healthcare. However, they typically require bulky battery packs or have to be plugged into an electric plug in order to operate. Thus, a smart shirt that can extract energy from human body motions to run body-worn healthcare sensors is particularly desirable. Here, we demonstrated a metal-free fiber-based generator (FBG) via a simple, cost-effective method by using commodity cotton threads, a polytetrafluoroethylene aqueous suspension, and carbon nanotubes as source materials. The FBGs can convert biomechanical motions/vibration energy into electricity utilizing the electrostatic effect with an average output power density of similar to 0.1 mu W/cm(2) and have been identified as an effective building element for a power shirt to trigger a wireless body temperature sensor system. Furthermore, the FBG was demonstrated as a self-powered active sensor to quantitatively detect human motion.
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