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.