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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wu, Ching-Chou Yang, Dong-Jie |
| Description | Author Affiliation: Wu CC ( Department of Bio-Industrial Mechatronics Engineering, National Chung Hsing University, Taiwan, ROC. ccwu@dragon.nchu.edu.tw) |
| Abstract | AC electroosmosis (ACEO) flow and label-free electrochemical impedance spectroscopy are employed to increase the hybridization rate and specifically detect target DNA (tDNA) concentrations. A low-ionic-strength solution, 6.1µS/cm 1mM Tris (pH 9.3), was used to produce ACEO and proved the feasibility of hybridization. Adequate voltage parameters for the simultaneous ACEO driving and DNA hybridization in the 1mM Tris solution were 1.5 Vpp and 200Hz. Moreover, an electrode set with a 1:4 ring width-to-disk diameter ratio exhibited a larger ACEO velocity above the disk electrode surface to improve collecting efficiency. The ACEO-integrated DNA sensing chips could reach 90% saturation hybridization within 117s. The linear range and detection limit of the sensors was 10aM-10pM and 10aM, respectively. The label-free impedimetric DNA sensing chips with integrated ACEO stirring can perform rapid hybridization and highly-sensitive detections to specifically measure tDNA concentrations. |
| ISSN | 09565663 |
| Volume Number | 43 |
| e-ISSN | 18734235 |
| Journal | Biosensors and Bioelectronics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-05-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biosensing Techniques Instrumentation Dna Analysis Genetics Dielectric Spectroscopy Microfluidics Oligonucleotide Array Sequence Analysis Equipment Design Equipment Failure Analysis Staining And Labeling Systems Integration 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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