Biofabrication of Tobacco mosaic virus-nanoscaffolded supercapacitors via temporal capillary microfluidics.

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TitleBiofabrication of Tobacco mosaic virus-nanoscaffolded supercapacitors via temporal capillary microfluidics.
Publication TypeJournal Article
Year of Publication2017
AuthorsZang, F, Chu, S, Gerasopoulos, K, Culver, JN, Ghodssi, R
JournalNanotechnology
Volume28
Issue26
Pagination265301
Date Published2017 Jun 30
ISSN1361-6528
Abstract

This paper reports the implementation of temporal capillary microfluidic patterns and biological nanoscaffolds in autonomous microfabrication of nanostructured symmetric electrochemical supercapacitors. A photoresist layer was first patterned on the substrate, forming a capillary microfluidics layer with two separated interdigitated microchannels. Tobacco mosaic virus (TMV) macromolecules suspended in solution are autonomously delivered into the microfluidics, and form a dense bio-nanoscaffolds layer within an hour. This TMV layer is utilized in the electroless plating and thermal oxidation for creating nanostructured NiO supercapacitor. The galvanostatic charge/discharge cycle showed a 3.6-fold increase in areal capacitance for the nanostructured electrode compared to planar structures. The rapid creation of nanostructure-textured microdevices with only simple photolithography and bionanostructure self-assembly can completely eliminate the needs for sophisticated synthesis or deposition processes. This method will contribute to rapid prototyping of wide range of nano-/micro-devices with enhanced performance.

DOI10.1088/1361-6528/aa742f
Alternate JournalNanotechnology
PubMed ID28524067