Sample pretreatment microfluidic chip for DNA extraction from rat peripheral blood

Xing Chen, Dafu Cui, Changchun Liu, Hui Li, Weixing Zhao

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A sample pretreatment microfluidic chip was described based on the principle of solid phase extraction and micro electro mechanical system technology. Oxidized porous silicon with the large surface area as the solid phase matrix for absorption of DNA from a biological sample can greatly improve the DNA yield. The factors that could affect the DNA yield were analyzed and the preparation technology and the experiment procedure were improved. The DNA purification process from the rat peripheral blood can be achieved and the DNA yield is 24 ng/(μL whole blood), which can reach the level of the commercial DNA purification kits. Furthermore, the DNA extracted from the whole blood can be amplified by polymerase chain reaction, which can achieve a high efficiency of the amplification.

Original languageEnglish (US)
Pages (from-to)74-78
Number of pages5
JournalFrontiers of Chemistry in China
Issue number1
StatePublished - Mar 2007
Externally publishedYes


  • Micro electro mechanical system
  • Oxidized porous silicon
  • Sample pretreatment microfluific chip

ASJC Scopus subject areas

  • General Chemistry


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