Development of DNA biosensors for single nucleotide polymorphisms

N. M. Pérez-Vielma, G. D. Ibarra-García, M. Gómez-López, M. A. Martínez Godínez, H. González Martínez, C. A. González Díaz, B. E. Del-Río-Navarro, V. F. Martínez-Silva, A. Martínez-Rivas, A. V. Vargas Varval, A. Miliar-García

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

Abstract

The development of a DNA biosensor for the detection of any single nucleotide polymorphism (SNP) implemented on the basis of a quartz crystal resonator as transducer is presented. The methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C SNPs were chosen to perform a proof of concept. We designed and proved a specific surface chemistry on gold in order to use human DNA with no chemical modification as probe. The immobilization of the human DNA via the proposed surface chemistry was successfully characterized with an Atomic Force Microscope (AFM). The DNA biosensor proposed here results in a specific and rapid manner to detect the evaluated SNP.

Original languageEnglish
Title of host publicationVI Latin American Congress on Biomedical Engineering, CLAIB 2014
EditorsAriel Braidot, Alejandro Hadad
PublisherSpringer Verlag
Pages55-58
Number of pages4
ISBN (Electronic)9783319131160
DOIs
StatePublished - 2015
Event6th Latin American Congress on Biomedical Engineering, CLAIB 2014 - Paraná, Argentina
Duration: 29 Oct 201431 Oct 2014

Publication series

NameIFMBE Proceedings
Volume49
ISSN (Print)1680-0737

Conference

Conference6th Latin American Congress on Biomedical Engineering, CLAIB 2014
Country/TerritoryArgentina
CityParaná
Period29/10/1431/10/14

Keywords

  • DNA biosensors
  • Methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C single nucleotide polymorphisms (SNPs)
  • Quartz crystal microbalance (QCM)

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