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Microtitre Plate Based Cell-SELEX Method.

Aptamers have emerged as a novel category in the field of bioreceptors due to their wide applications ranging from biosensing to therapeutics. Several variations of their screening process, called SELEX have been reported which can yield sequences with desired properties needed for their final use. We report a facile microtiter plate-based Cell-SELEX method for a gram-negative bacteria E. coli. The optimized protocol allows the reduction of number of rounds for SELEX by offering higher surface area and longer retention times. In addition, this protocol can be modified for other prokaryotic and eukaryotic cells, and glycan moieties as target for generation of high affinity bio-receptors in a short course of time in-vitro.