Characteristics of indium-tin-oxide electrode for continuous-flow PCR chip

  • Seung Ryong Joung
  • , Jun Hyeok Kim
  • , In Je Yi
  • , C. J. Kang
  • , Yong Sang Kim

Research output: Contribution to journalArticlepeer-review

Abstract

We propose glass and PDMS (polydimethylsiloxane) chips for DNA amplification with continuous-flow PCR (polymerase chain reaction). The PDMS microchannel was fabricated using a negative molding method for sample injection. Three heaters and sensors of ITO (indium-tin-oxide) thin films were fabricated on glass chip. ITO heaters and sensors were calibrated accurately for the temperature control of the liquid flow, ITO heater generated stable heat versus applied power. ITO sensor resistance was changed linearly versus temperature increase as a RTD (resistance temperature detector) sensor. As a result, we enable precision temperature control of continuous-flow PCR chip. Using the continuous-flow PCR chip DNA plasmid pKS-GFP 720 bp was successfully amplified.

Original languageEnglish
Pages (from-to)561-565
Number of pages5
JournalTransactions of the Korean Institute of Electrical Engineers
Volume56
Issue number3
StatePublished - 2007

Keywords

  • Continusous-flow PCR chip
  • Indium-tin-oxide electrode
  • Polydimethylsiloxane

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