Abstract
PSS) as a cation-selective membrane material. Using the microfluidic concentrator, we could increase the concentration of DNA by three orders of magnitude in less than 5 min at an electric field of 75 Vcm(-1). The 1000-fold increase in concentration of DNA led to an increase in the speed of MO-DNA hybridization by two orders of magnitude and enabled a detection sensitivity of ~1 nM within 15 min of concentration. Using the proposed microfluidic concentrator, we also demonstrated a rapid hybridization with a binary DNA mixture, containing a fully complementary and a non-complementary sequence to mimic molecular backgrounds present in real DNA samples.
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