Microwave-assisted synthesis of silver nanoparticles as a colorimetric sensor for hydrogen peroxide.

ABSTRACT: To consider silver nanoparticles (AgNPs) as a colorimetric sensor for H₂O₂ we require investigation of the effects of the homogeneity of the nanoparticle size and morphology on the sensor parameters. Uniformly-sized Ag nanoparticles with diameters of ∼18.8 ± 2.8 nm were produced using microwave irradiation (AgNP1) but non-uniform particles with diameters of ∼71.2 ± 19.4 nm (AgNP2) were formed without microwave irradiation. Microwave synthesis produced AgNP1 with superiority in terms of repeatability, selectivity and sensor stability for up to eight months of storage over AgNP2. AgNP1 exhibited higher sensitivity and detection limits in the working range of 0.01-40000 μM as compared to AgNP2. The application of the AgNP sensor to milk samples provided recovery values o

SUBMITTER: Ismillayli N 

PROVIDER: S-EPMC10885683 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature