• Multifunctional shape-dependent plasmonic nanoprobe by enzymatic etching of single gold triangular nanoplate

    6 days ago - By Springer

    Abstract
    Hydrogen peroxide , as a signaling molecule, plays a vital role in a wide variety of signaling transduction processes, aging, and diseases. However, the excessive production of H 2 O 2 causes various diseases. Herein, we develop a novel method for H 2 O 2 detection in live cells via dark-field scattering spectroscopy with gold triangular nanoprisms as probes. The corners of AuTNPs would be gradually oxidatively etched by the strong coordination of Br • which is generated by enzymatic reactions in the presence of horseradish peroxidase , bromide ion and trace hydrogen peroxide...
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