A SARS-Cov-2 sensor based on upconversion nanoparticles and graphene oxide
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Updated: Sep 5, 2025

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
Published on: February 1, 2022
Konstantina Alexaki1, Maria Eleni Kyriazi2, Joshua Greening1
1School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton Southampton SO17 1BJ UK a.kanaras@soton.ac.uk.
Abstract:
Since the beginning of the COVID-19 pandemic, there has been an increased need for the development of novel diagnostic solutions that can accurately and rapidly detect SARS-CoV-2 infection. In this work, we demonstrate the targeting of viral oligonucleotide markers within minutes without the requirement of a polymerase chain reaction (PCR) amplification step via the use of oligonucleotide-coated upconversion nanoparticles (UCNPs) and graphene oxide (GO).

