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Electrochemical microbial chip for mutagen screening were microfabricated and characterized by scanning electrochemical microscopy (SECM). Salmonella typhimurium TA1535 with a plasmid pSK1002 carrying a umuC‘–’lacZ fusion gene was used for the whole cell mutagen sensor. The TA1535/pSK1002 cells were exposed to mutagen solutions containing 2-(2-furyl)-3-(5-nitro-2-furyl)acrylamido (AF-2), mitomycin...
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