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

. 2015 May 27;5:10546. doi: 10.1038/srep10546

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

Copyright © 2015, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

Sensor responses measured in the subthreshold regimes of MoS₂ transistor biosensors: (a) transfer characteristics of an exemplary MoS₂ transistor sensor measured at various biodetection stages, following the sequence of (1) bare transistor, (2) antibody functionalization, and inputs of TNF-α solutions with concentrations of (3) 60 fM, (4) 300 fM, (5) 600 fM, (6) 3 pM, and (7) 6 pM (Here I_DS data are plotted in the logarithm scale, and the subthreshold regimes are emphasized); (b) a set of calibrated subthreshold-regime responses (S) measured from five different MoS₂ transistor sensors with respect to TNF-α concentration (n). These S-n relationships can be well fitted with Langmuir isotherms and the dissociation constant (K_D) of the antibody-(TNF-α) pair is extracted to be 424 ± 70 fM.