Abstract
Biosensors highjack and reengineer biological systems for highly specific detection of diverse molecules. However, many traditional biosensor devices have slow response times and high operating costs and require specialized training and immobile lab equipment. In an effort to address these limitations, researchers have begun using cell-free protein synthesis (CFPS) systems as biosensors. CFPS-based systems provide the advantages of speed, portability, and robustness at a relatively low cost. Here, we review CFPS-based biosensors according to the three fundamental stages of CFPS: transcription, translation, and protein folding.
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