@article{27, keywords = {2D Nanoparticle Synthesis for Devices and Sensors, Defect Tailoring in Nanoparticles for Environmental and Catalysis Applications}, author = {Inna Novodchuk and M Kayaharman and Ioannis Prassas and Antoninus Soosaipillai and Reza Karimi and IA Goldthorpe and E Abdel-Rahman and Joseph Sanderson and Eleftherios Diamandis and M Bajcsy and Mustafa Yavuz}, title = {Electronic field effect Detection of SARS-CoV-2 N-Protein Before the Onset of Symptoms}, abstract = {

As part of the efforts to contain the pandemic, researchers around the world have raced to develop testing platforms to detect the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes the Coronavirus disease 2019 (COVID-19). Within the different detection platforms studied, the field effect transistor (FET) is a promising device due to its high sensitivity and fast detection capabilities. In this work, a graphene-based FET which uses a boron and nitrogen co-doped graphene oxide gel (BN-GO gel) transducer functionalized with nucleoprotein antibodies, has been investigated for the detection of SARS-CoV-2 nucleocapsid (N)-protein in buffer. This biosensor was able to detect the viral protein in less than 4 min, with a limit of detection (LOD) as low as 10 ag/mL and a wide linear detection range stretching over 11 orders of magnitude from 10 ag/mL–1 μg/mL. This represents the lowest LOD and widest detection range of any COVID-19 sensor and thus can potentially enable the detection of infected individuals before they become contagious. In addition to its potential use in the COVID-19 pandemic, our device serves as a proof-of-concept of the ability of functionalized BN-GO gel FETs to be used for ultrasensitive yet robust biosensors.

}, year = {2022}, journal = {Biosensors and Bioelectronics - Available at SSRN 4005281}, volume = {210}, chapter = {114331}, month = {15 August 2022}, url = {https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4005281}, doi = {10.1016/j.bios.2022.114331}, }