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Flexible Battery‐Less Bioelectronic Implants: Wireless Powering and Manipulation by Near‐Infrared Light
Author(s) -
Liu Hongzhong,
Zhao Tingting,
Jiang Weitao,
Jia Rui,
Niu Dong,
Qiu Guanglin,
Fan Lin,
Li Xin,
Liu Weihua,
Chen Bangdao,
Shi Yongsheng,
Yin Lei,
Lu Bingheng
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201502752
Subject(s) - bioelectronics , battery (electricity) , materials science , graphene , electrical engineering , optoelectronics , nanotechnology , power (physics) , engineering , biosensor , physics , quantum mechanics
Bioelectronics, which can provide electrical impulses to precisely modulate the body's neural circuits, spark great interests of industry and academia. Yet the technologies to power and manipulate these devices, such as wireless powering and remote manipulation, remain challenging. Here, by investigating the pyroelectric performances of poly(vinylidene difluoride) (PVDF) and its remote‐manipulation ability under near‐infrared‐ray (nIR) irradiation, a flexible battery‐less implantable device is proposed, constructed by laminated graphene–PVDF–graphene sandwiches, which can be wirelessly powered and supply regulatable electrical pulses for nerve stimulation by nIR irradiation. The flexible and compact device (20 mm × 20 mm in area, 0.2 mm in thickness) can generate electrical pulses with controllable amplitude and width, and shows an excellent ability to stimulate nerves, i.e., sciatic nerve of a frog and a rat heart, by remote control. The flexible and remote‐manipulative battery‐less device should find uses in the design and fabrication of bioelectronics‐related applications.