Generation of complex, dynamic temperature gradients in a disposable microchip

Byung Hang Ha, Ghulam Destgeer, Jinsoo Park, Jin Ho Jung, Hyung Jin Sung

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


We present a temperature gradient (TG) generation method using acoustothermal heating of polydimethylsiloxane (PDMS) by surface acoustic wave (SAW) microfluidic system. Independent and precise control of each SAW from a slanted interdigital transducer (IDT) enables a one-dimensional (1D) spatiotemporal control of temperature in a PDMS microchip. Various TGs were created in gas and liquid. The system creates switchable, dynamic and complex TGs in a disposable microchip.

Original languageEnglish
Pages (from-to)38-41
Number of pages4
JournalPhysics Procedia
StatePublished - 2015
Externally publishedYes
EventICU International Congress on Ultrasonics, ICU 2015 - Metz, France
Duration: 11 May 201514 May 2015


  • acoustic absorption
  • melting curve
  • microfluidics
  • microheater
  • polydimethylsiloxane
  • surface acoustic wave
  • temperature gradients


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