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Aptamers are powerful capturing probes against various targets such as proteins, small organic compounds, metal ions, and even cells. In this study, we isolated and characterized single-stranded DNA (ssDNA) aptamers against Escherichia coli. A total of 28 ssDNAs were isolated after 10 rounds of selection using a bacterial cell–SELEX (systematic evolution of ligands by exponential enrichment) process...
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