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Graphene oxide modified DNA electrochemical biosensors

  • Mei Ma*
  • , Jimei Zhang
  • , Zhao Dai
  • , Xin Liu
  • , Shichao Xu
  • , Jun Wei
  • , Se Shi
  • , Guangping Chen
  • *Corresponding author for this work
  • Tiangong University
  • Oklahoma State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

One approach had been developed for the covalent modification of graphene sheets: amidation and esterification of graphene oxide (GO). Graphene oxide was synthesized by oxidizing graphite in strong acid and lots of oxygen-containing groups, such as hydroxyl and carboxyl processed in the carbon layers, made GO strongly hydrophilic activity as well as certain of chemical activity. This work researched a novel DNA biosensor which fabricated by immobilizing GO on Au electrode modified with mercaptoethylamine(MEA), was investigated by cyclic voltammetry. The results showed that graphite oxide was an excellent material and had a promising prospect in biosensor construction.

Original languageEnglish
Title of host publicationMechanical Engineering and Green Manufacturing II, MEGM 2012
Pages82-86
Number of pages5
DOIs
StatePublished - 2012
Externally publishedYes
Event2nd International Conference on Mechanical Engineering and Green Manufacturing, MEGM 2012 - Chongqing, China
Duration: 16 Mar 201218 Mar 2012

Publication series

NameApplied Mechanics and Materials
Volume155-156
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Conference on Mechanical Engineering and Green Manufacturing, MEGM 2012
Country/TerritoryChina
CityChongqing
Period16/03/1218/03/12

Keywords

  • DNA biosensor
  • Electrochemical
  • Graphene oxide
  • Nano material

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