2024
DOI: 10.1002/jccs.202400133
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Selective colorimetric detection of inorganic arsenic (iAsIII) using homocysteine‐modified gold nanoparticles

Wei‐Bin Tseng,
Chien‐Er Huang,
Huan‐Tsung Chang

Abstract: Arsenic contamination in environmental waters poses global health and environmental risks. This study addresses the urgent need for rapid, selective, and sensitive detection of inorganic arsenic (iAsIII) in environmental samples. Leveraging the unique properties of gold nanoparticles (AuNPs) and the selective binding affinity of homocysteine (Hcy), we developed a novel colorimetric sensor for iAsIII detection. Our investigation elucidates the mechanism by which Hcy modifies AuNPs, enabling the selective detect… Show more

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