Abstract

It was found that the chemiluminescence of acridinium ester (AE) was quenched effectively by gold nanoparticles (AuNPs) with Stern-Volmer constants approaching 10(10) M(-1), which was exploited to realize sequence-specific DNA detection based on the preferential absorption of AE-tagged single-strand probe on unmodified AuNPs over the hybrids of probe and target DNA.

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