

Title | Biofabrication of Tobacco mosaic virus-nanoscaffolded supercapacitors via temporal capillary microfluidics. |
Publication Type | Journal Article |
Year of Publication | 2017 |
Authors | Zang, F, Chu, S, Gerasopoulos, K, Culver, JN, Ghodssi, R |
Journal | Nanotechnology |
Volume | 28 |
Issue | 26 |
Pagination | 265301 |
Date Published | 2017 Jun 30 |
ISSN | 1361-6528 |
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. |
DOI | 10.1088/1361-6528/aa742f |
Alternate Journal | Nanotechnology |
PubMed ID | 28524067 |