Single Au@MnO2 nanoparticle imaging for sensitive glucose detection based on H2O2-mediated etching of the MnO2 layer

Xu, Weizhen; Ouyang, Minggao; Luo, Hongmei; Xu, Dianguo; Lin, Qinlu

doi:10.1039/d2nj03107h

Cited by 4 publications

(1 citation statement)

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“…The dynamic range of the plasmonic probe for ALP detection was 0.06–2.48 mU/mL, and the LOD was 5.8 μU/mL. In addition, Xu et al used the same plasmonic probe and sensing strategy to achieve glucose detection [ 61 ]. Based on the enzyme-catalyzed reaction of glucose oxidase (GOx) on glucose and the etching reaction of H 2 O 2 on the surface of Au@MnO 2 particles, the probe achieved quantitative measurement of glucose under DFM, with a linear range of 0.05–20 μM and an LOD of 12.9 nM.…”

Section: Materials and Applicationsmentioning

confidence: 99%

Plasmonic Nanomaterials in Dark Field Sensing Systems

Zhang

et al. 2023

Nanomaterials

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Plasma nanoparticles offer promise in data storage, biosensing, optical imaging, photoelectric integration, etc. This review highlights the local surface plasmon resonance (LSPR) excitation mechanism of plasmonic nanoprobes and its critical significance in the control of dark-field sensing, as well as three main sensing strategies based on plasmonic nanomaterial dielectric environment modification, electromagnetic coupling, and charge transfer. This review then describes the component materials of plasmonic nanoprobes based on gold, silver, and other noble metals, as well as their applications. According to this summary, researchers raised the LSPR performance of composite plasmonic nanomaterials by combining noble metals with other metals or oxides and using them in process analysis and quantitative detection.

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Section: Materials and Applicationsmentioning

confidence: 99%