Fluorescent nanoparticle for bacteria and DNA detection.

Abstract

Using bioconjugated dye-doped silica nanoparticles (NPs), we have developed a bioassay for the accurate determination of a single bacterial cell within 20 minutes without any signal amplification or sample enrichment. The antibody-conjugated NPs can specifically and quantitatively detect bacteria, such as Escherichia coli O157:H7 from beef through antibody… (More)

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