Colorimetric detection of mercury ion (Hg2+) based on DNA oligonucleotides and unmodified gold nanoparticles sensing system with a tunable detection range
文献类型：期刊论文
| 作者 | Xu XW ; Wang J ; Jiao K ; Yang XR |
| 刊名 | biosensors & bioelectronics
 |
| 出版日期 | 2009 |
| 卷号 | 24期号:10页码:3153-3158 |
| 关键词 | ADENOSINE DNAZYME POLYNUCLEOTIDES AGGREGATION BIOSENSOR SEQUENCES APTAMERS DESIGN PROBES PAIRS |
| ISSN号 | 0956-5663 |
| 通讯作者 | jiao k |
| 中文摘要 | here, we report a simple and sensitive colorimetric detection method for hg2+ ions with a tunable detection range based on dna oligonucleotides and unmodified gold nanoparticles (dna/aunps) sensing system. complementary dna strands with t-t mismatches could effectively protect aunps from salt-induced aggregation. while in the presence of hg2+ ions t-hg2+-t coordination chemistry leads to the formation of dna duplexes, and aunps are less well protected thus aggregate at the same salt concentration, accompanying by color change from red to blue. by rationally varying the number of t-t mismatches in dna oligonucleotides, the detection range could be tuned. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000267162200036 |
| 公开日期 | 2010-05-04 |
| 源URL | [http://202.98.16.49/handle/322003/11191]  |
| 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 | Xu XW,Wang J,Jiao K,et al. Colorimetric detection of mercury ion (Hg2+) based on DNA oligonucleotides and unmodified gold nanoparticles sensing system with a tunable detection range[J]. biosensors & bioelectronics,2009,24(10):3153-3158. |
| APA | Xu XW,Wang J,Jiao K,&Yang XR.(2009).Colorimetric detection of mercury ion (Hg2+) based on DNA oligonucleotides and unmodified gold nanoparticles sensing system with a tunable detection range.biosensors & bioelectronics,24(10),3153-3158. |
| MLA | Xu XW,et al."Colorimetric detection of mercury ion (Hg2+) based on DNA oligonucleotides and unmodified gold nanoparticles sensing system with a tunable detection range".biosensors & bioelectronics 24.10(2009):3153-3158. |
入库方式： OAI收割
来源：长春应用化学研究所
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