Affordable Access

Publisher Website

Paper-based chemiresistor for detection of ultralow concentrations of protein

Authors
Journal
Biosensors and Bioelectronics
0956-5663
Publisher
Elsevier
Publication Date
Volume
49
Identifiers
DOI: 10.1016/j.bios.2013.06.007
Keywords
  • Carbon Nanotubes
  • Chemiresistor
  • Protein Detection
  • Paper Substrate

Abstract

Abstract A new paper-based chemiresistor composed of a network of single-wall carbon nanotubes (SWCNTs) and anti-human immunoglobulin G (anti-HIgG) is reported herein. SWCNTs act as outstanding transducers because they provide high sensitivity in terms of resistance changes due to immunoreaction. As a result, the resistance-based biosensor reaches concentration detection as low as picomolar. The resulting paper-based biosensor is sensitive, selective and employs low-cost substrate and simple manufacturing stages. Since chemiresistors require low-power equipment and are able to detect low concentrations with inexpensive materials, the present approach may pave the way for the development of resistive biosensors at very low-cost with high performances.

There are no comments yet on this publication. Be the first to share your thoughts.