Traditional bacterial identification methods take one to two days to complete, relying on large bacteria colonies for visual identification. In order to decrease this analysis time in a cost-effective manner, a method to sort and concentrate bacteria based on the bacteria’s characteristics itself is needed. One example of such a method is dielectrophoresis, which has been used by researchers to separate bacteria from sample debris and sort bacteria according to species. This work presents variations in which dielectrophoresis can be performed and their associated drawbacks and benefits specifically to bacterial identification. In addition, a potential microfluidic design will be discussed.
Cynthia Hanson, Michael Sieverts, Karen Tew, Annelise Dykes, Michaela Salisbury, and Elizabeth Vargis, "The use of microfluidics and dielectrophoresis for separation, concentration, and identification of bacteria," Proc. SPIE 9705, Microfluidics, BioMEMS, and Medical Microsystems XIV, 97050E (Presented at SPIE BiOS: February 14, 2016; Published: 21 March 2016); https://doi.org/10.1117/12.2213593.
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