Chips and Qi: Microcomponent-based analysis in traditional Chinese medicine

Maria Carles, Ming Hung Thomas Lee, Shanti Moganti, Ralf Lenigk, Karl W. Tsim, Nancy Y. Ip, I. Ming Hsing, Nikolaus J. Sucher

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)


Over the last 50 years or so Traditional Chinese medicine (TCM) has been subject to intensive basic and clinical research. Although the effectiveness and remarkable safety of TCM have been documented after controlled clinical studies, there are several herbal and animal parts that are toxic or difficult to identify. DNA polymorphism-based assays have recently been developed for the identification of herbal medicines. In this approach, small amounts of DNA are amplified by the polymerase chain reaction and the reactions products are analyzed by gel electrophoresis, sequencing, or hybridization with speciesspecific probes. With the DNA based identification of TCM materials as an example, chip-based analytical micro devices were developed with the goal of fabricating an integrated device that will enable sample preparation, amplification, and analysis on a single microchip-based device ("lab-on-a-chip"). The application of a silicon-based polymerase chain reaction microreactor and a DNA microarray for the DNA sequence-based identification of toxic medicinal plants is reported here.
Original languageEnglish
Pages (from-to)190-194
Number of pages5
JournalAnalytical and Bioanalytical Chemistry
Issue number2
Publication statusPublished - 1 Jan 2001
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry


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