Plasmonic and nanozyme dual-channel-based logic judgment for enhancing gold nanoparticle based colorimetric Hg 2+ ion sensing performance.

An AND logic gate-based Hg 2+ ion colorimetric assay was constructed using the plasmonic and nanozyme dual signal channels of gold nanoparticles (AuNPs). This assay increased the judgment criteria for the identification of Hg 2+ ions and effectively improved the accuracy of Hg 2+ ion detection.