Microchip electrophoresis for specific gene detection of the pathogenic bacteria V. cholerae by circle-to-circle amplification

Laili Mahmoudian, Jonas Melin, Mohamad Reza Mohamadi, Keiko Yamada, Michio Ohta, Noritada Kaji, Manabu Tokeshi, Mats Nilsson, Yoshinobu Baba

Research output: Contribution to journalArticle

12 Citations (Scopus)


We have developed a new method for a fast and precise analysis of circle-to-circle amplification (C2CA) product for specific gene detection by microchip electrophoresis. In this method, we have added a new enzymatic step to the C2CA reaction, which could be carried out isothermally at 37°C. Compared to the original single-stranded DNA, the double-stranded DNA that is produced by this enzymatic reaction is more reliable for analysis by microchip electrophoresis. C2CA product was detected within 55 s with high reproducibility by this method which was successfully applied to the detection of 10-ng genomic DNA of the pathogenic bacteria Vibrio. cholerae within 110 s. Purification was found to be an indispensable step for the analysis of the C2CA product of genomic DNA samples. 2008

Original languageEnglish
Pages (from-to)327-332
Number of pages6
Journalanalytical sciences
Issue number3
Publication statusPublished - Mar 2008
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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