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Microbiology and Molecular Biology Reviews, March 2003, p. 38-51, Vol. 67, No. 1
1092-2172/03/$08.00+0     DOI: 10.1128/MMBR.67.1.38-51.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

Separation, Identification, and Characterization of Microorganisms by Capillary Electrophoresis

Meera J. Desai and Daniel W. Armstrong*

Department of Chemistry, Gilman Hall, Iowa State University, Ames, Iowa 50011

The use of capillary electrophoresis (CE) for the analysis, identification, and characterization of microorganisms has been gaining in popularity. The advantages of CE, such as small sample requirements, minimal sample preparation, rapid and simultaneous analysis, ease of quantitation and identification, and viability assessment, make it an attractive technique for the analysis of microbial analytes. As this instrumental method has evolved, higher peak efficiencies have been achieved by optimizing CE conditions, such as pH, ionic strength, and polymer additive concentration. Experimental improvements have allowed better quantitation and more accurate results. Many practical applications of this technique have been investigated. Viability and identification of microbes can be accomplished in a single analysis. This is useful for evaluation of microbial analytes in consumer products. Diagnosis of microbe-based diseases is now possible, in some cases, without the need for culture methods. Microbe-molecule, virus-antibody, or bacteria-antibiotic interactions can be monitored using CE, allowing for the screening of possible drug candidates. Fermentation can be monitored using this system. This instrumental approach can be adapted to many different applications, including assessing the viability of sperm cells. Progress has been made in the development of microelectrophoresis instrumentation. These advances will eventually allow the development of small, dedicated devices for the rapid, repetitive analyses of specific microbial samples. Although these methods may never fully replace traditional approaches, they are proving to be a valuable addition to the collection of techniques used to analyze, quantitate, and characterize microbes. This review outlines the recent developments in this rapidly growing field.

* Corresponding author. Mailing address: Department of Chemistry, Iowa State University, Gilman Hall, Ames, IA 50011. Phone: (515) 294-1394. Fax: (515) 294-0838. E-mail: sec4dwa{at}iastate.edu.

Microbiology and Molecular Biology Reviews, March 2003, p. 38-51, Vol. 67, No. 1
1092-2172/03/$08.00+0     DOI: 10.1128/MMBR.67.1.38-51.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.





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