Rapid colorimetric glucose detection via chain reaction amplification of acrylic functionalized Ag@SiO₂ nanoparticles.

ABSTRACT: The chain reaction amplification mechanism (CRAM) has been extensively studied, but it has not been effectively developed at the molecular scale and still needs to consume amounts of monomers to show the macroscopic phenomenon needed for detection. Herein, rationally-designed silica-coated silver nanoparticles with acrylic acid-functionalization were used as a plasmonic nanosensor to realize highly sensitive and fast colorimetric glucose detection with less monomer consumption, which effectively integrated CRAM with the localized surface plasmon resonance effect, developing CRAM at the molecular scale. The glucose detection mechanism of the proposed sensor was based on free-radical polymerization by biocatalytic initiation, which would induce the aggregation of Ag NPs, leading to a decreas

SUBMITTER: Lin X 

PROVIDER: S-EPMC9089842 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature