Selection and Functionalization of Germanium Nanowires for Bio- Sensing

Laumier, Siriny, Farrow, Thomas, van Zalinge, Harm ORCID: 0000-0003-0996-1281, Seravalli, Luca, Bosi, Matteo and Sandall, Ian ORCID: 0000-0003-3532-0373 (2022) Selection and Functionalization of Germanium Nanowires for Bio- Sensing. ACS OMEGA, 7 (39). pp. 35288-35296.

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Abstract

In this paper, we investigate the use of dielectrophoresis to align germanium nanowire arrays to realize nanowire-based diodes and their subsequent use for bio-sensing. After establishing that dielectrophoresis is a controllable and repeatable fabrication method to create devices from germanium nanowires, we use the optimum process conditions to form a series of diodes. These are subsequently functionalized with an aptamer, which is able to bind specifically to the spike protein of SARS-Cov2 and investigated as a potential sensor. We observe a linear increase in the source to drain current as the concentration of spike protein is increased from 100 fM/L to 1 nM/L.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	05 Oct 2022 13:49
Last Modified:	09 Feb 2023 04:59
DOI:	10.1021/acsomega.2c04775
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3165220