基于Hg2+ -DNA复合物诱导金纳米颗粒聚集检测汞(II)
Detection of mercury(II) based on Hg2+ -DNA complexes inducing the aggregation of gold nanoparticles.
作者信息
Liu Chi-Wei, Hsieh Yi-Ting, Huang Chih-Ching, Lin Zong-Hong, Chang Huan-Tsung
机构信息
Department of Chemistry, National Taiwan University, Taipei, Taiwan.
出版信息
Chem Commun (Camb). 2008 May 21(19):2242-4. doi: 10.1039/b719856f. Epub 2008 Mar 10.
DOI:10.1039/b719856f
PMID:18463753
Abstract
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.
摘要
一种用于检测Hg2+的DNA-金纳米颗粒探针，该探针利用胸腺嘧啶（T）与Hg2+之间的配位作用形成DNA-Hg2+复合物，以控制吸附在金纳米颗粒上的DNA链的负电荷密度，从而改变其结构。
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