Logic control of enzyme-like gold nanoparticles for selective detection of lead and mercury ions.

@article{Lien2014LogicCO,
  title={Logic control of enzyme-like gold nanoparticles for selective detection of lead and mercury ions.},
  author={Chia-Wen Lien and Yu-ting Tseng and Chih-Ching Huang and Huan-Tsung Chang},
  journal={Analytical chemistry},
  year={2014},
  volume={86 4},
  pages={2065-72}
}
Functional logic gates based on lead ions (Pb(2+)) and mercury ions (Hg(2+)) that induce peroxidase-like activities in gold nanoparticles (Au NPs) in the presence of platinum (Pt(4+)) and bismuth ions (Bi(3+)) are presented. The "AND" logic gate is constructed using Pt(4+)/Pb(2+) as the input and the peroxidase-like activity of the Au NPs as the output; this logic gate is denoted as "Pt(4+)/Pb(2+)(AND)-Au NPPOX". When Pt(4+) and Pb(2+) coexist, strong metallophilic interactions (between Pt and… CONTINUE READING