Fast separation of DNA fragments in on-chip electrophoresis microcapillary

Shinichi Etoh, Toshihito Higashi, Tsuyoshi Fujimura, Reiji Hattori, Yukinori Kuroki

Research output: Contribution to journalArticlepeer-review


Separation of DNA fragments is performed in on-chip electrophoresis microcapillary fabricated on a photosensitive glass. Since the UV-irradiated part of the photosensitive glass has the etching rate 20 times higher than the other parts, we can obtain the channel structure with the high aspect ratio, which is valuable to the high-sensitivity detection of the signal. The confocal laser scanning microscopy (CLSM) is used to observe and detect the fluorescent sample plug in the on-chip electrophoresis microcapillary. The CLSM is a powerful tool to observe and detect the sample inside the channel since it can capture the fluorescence images and can vary the laser focal plane depth. In this study, Hydroethylcellurose (HEC) polymer solution is using in the electrophoresis as sieving matrix. Therefore the on-chip electrophoresis microcapillary with the short separation channel is able to separate DNA fragments.

Original languageEnglish
Pages (from-to)37-41
Number of pages5
JournalResearch Reports on Information Science and Electrical Engineering of Kyushu University
Issue number1
Publication statusPublished - Jan 1 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Electrical and Electronic Engineering


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