DNA based gold nanoparticles colorimetric sensors for sensitive and selective detection of Ag(I) ions
文献类型：期刊论文
| 作者 | Li BL ; Du Y ; Dong SJ |
| 刊名 | analytica chimica acta
 |
| 出版日期 | 2009 |
| 卷号 | 644期号:1-2页码:78-82 |
| 关键词 | AQUEOUS-MEDIA APTAMER DESIGN SILVER ASSAYS PROBE AGGREGATION BIOSENSORS RECEPTORS HG2+ |
| ISSN号 | 0003-2670 |
| 通讯作者 | dong sj |
| 中文摘要 | in this work, we reported both unlabeled and labeled sensing strategies for ag(i) ions detection by using the dna based gold nanoparticles (aunps) colorimetric method. in the unlabeled strategy, c-base riched single strand dna (c-ssdna) enwinded onto aunps to form aunps/c-ssdna complex. in the labeled method, sulfhydryl group modified c-ssdna (hs-c-ssdna) was covalently labeled on aunps to produce aunps-s-c-ssdna complex. in both strategies, c-ss dna or hs-c-ssdna could enhance the aunps stability against the salt-induced aggregation. however, the presence of ag(i) ions in the obtained aunps/c-ssdna or aunps-s-c-ssdna complex would decrease such stability to display purple even blue colors due to the formation of ag(i) ions mediated c-ag(i)-c base pairs. through this phenomenon, ag(i) ions could be detected qualitatively and quantitatively using both unlabeled and labeled sensing strategies. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-05-27 ; 2011-06-09 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/12165]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li BL,Du Y,Dong SJ. DNA based gold nanoparticles colorimetric sensors for sensitive and selective detection of Ag(I) ions[J]. analytica chimica acta,2009,644(1-2):78-82. |
| APA | Li BL,Du Y,&Dong SJ.(2009).DNA based gold nanoparticles colorimetric sensors for sensitive and selective detection of Ag(I) ions.analytica chimica acta,644(1-2),78-82. |
| MLA | Li BL,et al."DNA based gold nanoparticles colorimetric sensors for sensitive and selective detection of Ag(I) ions".analytica chimica acta 644.1-2(2009):78-82. |
入库方式： OAI收割
来源：长春应用化学研究所
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