Cancer sensors based on graphene and graphene composites

B. Zhang, Tianhong Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A comparison of performance of three different types of graphene biosensors for the detection of prostate specific antigen was reported. Three different graphene structures were synthesized by mechanical exfoliation, microfluidic and self assembly respectively, representing graphene composites from pure to hybrid. Various parameters of different types of graphene biosensors were compared, such as detection limits, sensitivity, stability, etc. Hybridized materials in the graphene composites will change the electrical stability. However, hybrid or decorated materials enhance the absorption of target molecule, which introduce much higher sensitivity and detection limits. As were expected, self assembled graphene biosensor demonstrated the highest detection limits and sensitivity, but showed poor stability. On the other hand, pure graphene and microfluidic induced graphene presented lower detection limits and sensitivity, but better stability due to the absence of hybrid polymer in the graphene composites. The results and discussion demonstrated here can provide a guidance for the design of graphene based biosensors.

Original languageEnglish (US)
Title of host publication17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
PublisherChemical and Biological Microsystems Society
Pages203-205
Number of pages3
ISBN (Print)9781632666246
StatePublished - Jan 1 2013
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 - Freiburg, Germany
Duration: Oct 27 2013Oct 31 2013

Publication series

Name17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Volume1

Other

Other17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
CountryGermany
CityFreiburg
Period10/27/1310/31/13

Keywords

  • Cancer sensor
  • Graphene
  • Hybrid nanocomposite
  • Microfluidic
  • Self assembly

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