Fabrication of Nano-piezomaterials for Powering Bioelectronics and Interfaced Cellular Biomechanics
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- Nguyen T.D., McAlpine M.C. (2013) Fabrication of Nano-piezomaterials for Powering Bioelectronics and Interfaced Cellular Biomechanics. In: Toi V., Toan N., Dang Khoa T., Lien Phuong T. (eds) 4th International Conference on Biomedical Engineering in Vietnam. IFMBE Proceedings, vol 49. Springer, Berlin, Heidelberg
Nanostructures of piezoelectric materials are attractive building blocks for useful bioimplant devices such as self-powering nanogenerators and nano-biosensors. Yet, one of the most efficient piezo-nanomaterials - PbZrxTi1 − xO3 (PZT) nanowires is difficult to synthesize without suffering from polycrystallinity or poor stoichiometric control. Current large-scale nanofabrication methods have been restricted by their complexity and cost, while bottom-up synthesis of nanowires has been limited in methods to assemble these structures at precisely-defined locations. Here, we report a novel fabrication method which requires only low resolution photolithography to generate ultra smooth, high performance PZT nanowires over wafer scales. These fabricated PZT nanomaterials also shows a biocompatible interface with living cells to offer a great potential for its applications in biomedicine such as self-powering implant devices and cellular biomechanical sensors.
Keywordsnanomanufacturing energy conversion piezoelectric nanowires piezo-cell interface
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