Kinetic and thermodynamic analyses of DNA hybridization reveal the mechanism of gold nanoparticle-assisted single base-pair discrimination in the NanoBioArray chip

Abootaleb Sedighi, Paul C. H. Li*

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

This paper reports the kinetic and thermodynamic studies of DNA hybridization performed in order to comprehend the mechanism of gold nanoparticle (AuNP)-assisted single base-pair discrimination conducted in the NanoBioArray (NBA) chip. In this technique, AuNP-loaded targets DNAs, unlike the target DNAs in the random-coil format, discriminate between perfect matched (PM) probes and the single base-pair mismatched (MM) ones immobilized in the NBA chip surface. Based on our studies, we believe that the binding between target DNA bases and AuNP surfaces shifts the rate-limiting step of both hybridization and dehybridization processes in such a way that favors the mismatch discrimination.
Original languageEnglish
Title of host publication17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
PublisherChemical and Biological Microsystems Society
Pages865-867
Volume2
ISBN (Print)9781632666246
Publication statusPublished - 2013
Externally publishedYes
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 - Freiburg, Germany
Duration: 27 Oct 201331 Oct 2013

Publication series

Name17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Volume2

Conference

Conference17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
PlaceGermany
CityFreiburg
Period27/10/1331/10/13

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • Bioarray chip
  • DNA dehybridization
  • DNA hybridization
  • Gold nanoparticle
  • Single base-pair discrimination
  • Transition state theory

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