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In the present study, we developed a highly sensitive and convenient biosensor consisting of gold nanoparticle (AuNP) probes and a gene chip to detect microRNAs (miRNAs). Specific oligonucleotides were attached to the glass surface as capture probes for the target miRNAs, which were then detected via hybridization to the AuNP probes. The signal was amplified via the reduction of HAuCl4 by H2O2. The...
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