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We report a novel electrical DNA biosensor, which consists of gold (Au) nano islands and SWCNT net on top of a semi-concentric Au electrode array (also referred to as the CGi). The real time measurement in TE buffer solution in a wide range of the target ss-DNA concentration down to fM (10-15 M) was performed to check the detection limit. The CGi, functionalized with 25mer probe ss-DNA (5'-HSC6-C18...
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