id author title date pages extension mime words sentences flesch summary cache txt cord-275232-0sg0hv9w Yeung, Siu-Wai A DNA biochip for on-the-spot multiplexed pathogen identification 2006-09-25 .txt text/plain 3241 162 41 The DNA-based identification of the two model pathogens involved a number of steps including a thermal lysis step, magnetic particle-based isolation of the target genomes, asymmetric PCR, and electrochemical sequence-specific detection using silver-enhanced gold nanoparticles. The assay involves the following steps: (i) sample preparation using thermal cell lysis and magnetic particle-based target genome isolation; (ii) target DNA amplification by the PCR; (iii) hybridization of the amplicons to their complementary oligonucleotide capture probes immobilized onto individual detection electrode surfaces and (iv) electrochemical transduction of the recognition event via gold nanoparticles with signal amplification using electrocatalytic silver deposition (10) . The three main steps were (A) sample preparation: thermal cell lysis and magnetic particle-based isolation of specific genomic DNAs; (B) target DNA amplification: generation of single-stranded rich amplicons by asymmetric PCR; (C) product detection: gold nanoparticle labeling, electrocatalytic silver deposition, and electrochemical silver dissolution. ./cache/cord-275232-0sg0hv9w.txt ./txt/cord-275232-0sg0hv9w.txt