Detection of mercury(II) based on Hg2+ -DNA complexes inducing the aggregation of gold nanoparticles.
A DNA-Au NP probe for sensing Hg2+ using the formation of DNA-Hg2+ complexes through thymidine (T)-Hg2+ -T coordination to control the negative charge density of the DNA strands-thereby varying their structures-adsorbed onto Au NPs.
Liu
Chi-Wei
CW
Department of Chemistry, National Taiwan University, Taipei, Taiwan.
Hsieh
Yi-Ting
YT
Huang
Chih-Ching
CC
Lin
Zong-Hong
ZH
Chang
Huan-Tsung
HT
D002413:Cations, Divalent / Q000737:chemistry; D003124:Colorimetry / Q000379:methods; D004277:DNA, Single-Stranded / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008628:Mercury / Q000032:analysis* / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D011071:Poly T / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D013936:Thymidine / Q000737:chemistry
D002413:Cations, Divalent; D004277:DNA, Single-Stranded; D011071:Poly T; D006046:Gold; D008628:Mercury; D013936:Thymidine