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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ge, Ying Lin, Jin-Ming Ding, Caifeng |
| Description | Author Affiliation: Ding C ( The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, PR China.) |
| Abstract | A novel electrochemical assay based on the aptamer and the signal of amplification of nanoparticles (NPs) was constructed for the determination of thrombin. Aptamers immobilized on the electrode and Au NPs could be assembled with the target protein to form a sandwich structure in the presence of the latter. Differential pulse voltammetry (DPV) was employed to detect the CdS NPs loaded on the surface of the Au NPs through the linker DNA, which was related to the concentration of the target protein. The assay took advantage of the amplification ability of Au nanoparticles carrying multiplex CdS NPs and the specific affinity of aptamers. Thrombin was detected in this assay in the linear range of 1.0x10(-15) to 1.0x10(-11) M with the detection limit of 5.5x10(-16) M of target protein. In addition, the assay could be used to detection thrombin in real samples with high sensitivity and good selectivity. |
| ISSN | 09565663 |
| Issue Number | 6 |
| Volume Number | 25 |
| e-ISSN | 18734235 |
| Journal | Biosensors and Bioelectronics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-02-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Aptamers, Nucleotide Chemistry Biosensing Techniques Instrumentation Electrochemistry Electrodes Nanoparticles Nanotechnology Thrombin Analysis Equipment Design Equipment Failure Analysis Ultrastructure Reproducibility Of Results Sensitivity And Specificity Journal Article Research Support, Non-u.s. Gov't Discipline Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Medicine Biophysics Biomedical Engineering Biotechnology Electrochemistry |
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