N-doped TiO2 based visible light activated label-free photoelectrochemical biosensor for detection of Hg2+ through quenching of photogenerated electrons
文献类型：期刊论文
| 作者 | Han, QQ（韩倩倩）; Wang, KW（王克伟）; Xu, LJ（许丽君）; Yan, X（杨现）; Zhang, K（张坤驰）; Chen, X（陈星）; Wang, QL（王庆琳）; Zhang, L; Pei, RJ（裴仁军） |
| 刊名 | ANALYST
 |
| 出版日期 | 2015 |
| 卷号 | 140期号:12页码:5 |
| 通讯作者 | Pei, RJ (裴仁军) |
| 英文摘要 | A novel photoelectrochemical (PEC) biosensor was fabricated based on N-doped TiO2 for the detection of Hg2+ through the quenching of photogenerated electrons. The N-doped TiO2 was synthesized by a sol-gel method with urea and tetrabutyl titanate as the N and Ti sources. Compared with the undoped TiO2, the N-doped TiO2 showed an enhanced photocurrent response under visible light (lambda > 420 nm). The sensing surface was functionalized with 5'-amino-modified T-rich oligonucleotides. The photoelectrochemical biosensor bound Hg2+ on the surface by a highly specific T-Hg2+-T recognition. Hg2+ on the surface of the N-doped TiO2 film withdrew the photogenerated electrons and decreased the recorded current signal. The dynamic linear range for Hg2+ has been determined to be as low as 2-6 mu M. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3473]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米生物医学与安全研究部_裴仁军团队 |
| 推荐引用方式 GB/T 7714 | Han, QQ,Wang, KW,Xu, LJ,et al. N-doped TiO2 based visible light activated label-free photoelectrochemical biosensor for detection of Hg2+ through quenching of photogenerated electrons[J]. ANALYST,2015,140(12):5. |
| APA | Han, QQ.,Wang, KW.,Xu, LJ.,Yan, X.,Zhang, K.,...&Pei, RJ.(2015).N-doped TiO2 based visible light activated label-free photoelectrochemical biosensor for detection of Hg2+ through quenching of photogenerated electrons.ANALYST,140(12),5. |
| MLA | Han, QQ,et al."N-doped TiO2 based visible light activated label-free photoelectrochemical biosensor for detection of Hg2+ through quenching of photogenerated electrons".ANALYST 140.12(2015):5. |
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