Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2023 May 10;390:133960. doi: 10.1016/j.snb.2023.133960

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2023 Elsevier B.V. All rights reserved.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

PMC Copyright notice

Fig. 4 — (A) Nyquist plots obtained after the treatment of various concentrations of the SARS-CoV-2 viral antigen ranging from 10 ng/mL to 10 fg/mL in the presence of [1:1] redox probe, at a pH 7.4 under buffer media. (B) A linear plot was obtained from R_ct [MΩ] versus SARS-CoV-2 concentration for (A). (C) Nyquist plots were obtained after the treatment of various concentrations of SARS-CoV-2 antigen ranging from 10 ng/mL to 10 fg/mL in the presence of [1:1] redox probe, at pH 7.4 in 10% serum-containing solution. (D) A linear plot was obtained from R_ct [MΩ] versus SARS-CoV-2 concentration for (C).