Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study About Biochip Combined with Micro Mixer and Reactor for DNA Ligation

마이크로 혼합기와 반응기로 구성된 DNA 결찰용 바이오칩에 관한 연구

  • 강도형 (한양대학교 대학원 기계공학과) ;
  • 안유민 (한양대학교 기계공학과) ;
  • 황승용 (한양대학교 분자생명과학부)
  • Published : 2008.08.01
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Abstract

In this research, we developed new PDMS-glass based microbiochip consisted of the micromixer and microreactor for DNA ligation. The micromixer was composed of a straight channel integrated with nozzles and pillars, and the microreactor was composed of a serpentine channel. We coated the PDMS chip surface with the 0.25wt.% PVP solution to prevent the bubble generation which was caused by the hydrophobicity of the PDMS. The new micomixer was passive type and the mixing was enhanced by a convective diffusion using the nozzle and pillar. The 10.33mm long micromixer showed the good mixing efficiency of 87.7% at 500 l/min flow rate. We could perform the DNA ligation successfully in the microbiochip, and the ligation time was shortened from 4 hours in conventional laboratory method to 5 min in the microbiochip.

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References

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