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Signal-on Photoelectrochemical Aptasensor for Adenosine Triphosphate Detection Based on Sensitization Effect of CdS:Mn@Ru(bpy)2(dcbpy) Nanocomposites
| Content Provider | Semantic Scholar |
|---|---|
| Author | Fan, Gao-Chao Zhao, Ming Shi, Jian-Jun Zhang, Jian-Rong Zhu, Jun-Jie |
| Copyright Year | 2016 |
| Abstract | A novel photoelectrochemical aptasensor for adenosine triphosphate (ATP) detection was developed by introducing inorganic–organic photoactive nanocomposites as sensitization agents to achieve significant signal amplification. Specifically, a TiO2/Au hybrid structure was first fabricated by decorating Au nanoparticles on the surface of TiO2 film, which then was used as the photoelectrochemical matrix for the immobilization of ATP aptamer probes; amino-functionalized CdS:Mn (CdS:Mn-NH2) nanocrystals covalently bound with Ru(bpy)2(dcbpy)2+ (bpy = 2,2′-bipyridine; dcbpy = 2,2′-bipyridine-4,4′-dicarboxylic acid) to form CdS:Mn@Ru(bpy)2(dcbpy) photoactive nanocomposites, which were employed as signal amplification element labeling on the terminal of ATP aptamer probes. The ATP detection was performed via the photocurrent variation produced by the conformation change of ATP aptamer probes after specifically binding with ATP molecules. Before incubation with ATP, the ATP aptamer probe hybridized with its partly c... |
| Starting Page | 15657 |
| Ending Page | 15665 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/acs.jpcc.5b08131 |
| Volume Number | 120 |
| Alternate Webpage(s) | http://or.nsfc.gov.cn/bitstream/00001903-5/207961/1/1000013988037.pdf |
| Alternate Webpage(s) | http://hysz.nju.edu.cn/jjzhu/userfiles/files/2016/Fan-2016-Signal-on%20Photoelect.pdf |
| Alternate Webpage(s) | https://doi.org/10.1021/acs.jpcc.5b08131 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
