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Figure 9a: Selectivity study: capacitive responses from DNA-sensor chip with immobilized 30-mer E. coli 16S rDNA, following injection of unamplified whole genomic DNA samples at concentration range corresponding to 101 to 105 cell ml-1 of E. coli and L. reuteri, at working (hybridization) temperature of 30°C, and 30% formamide in the mobile phase. |