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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chen, Wei-Yu Lan, Guo-Yu Chang, Huan-Tsung |
| Description | Country affiliation: Taiwan Author Affiliation: Lan GY ( Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 106, Taiwan.) |
| Abstract | In this study, we prepared fluorescent, functional oligonucleotide-stabilized silver nanoclusters (FFDNA-Ag NCs) through one-pot synthesis and then employed them as probes for single nucleotide polymorphisms (SNPs). The FFDNA-Ag NCs were obtained through the NaBH(4)-mediated reduction of AgNO(3) in the presence of a DNA strand having the sequence 5'-C(12)-CCAGATACTCACCGG-3'. The specific DNA scaffold combines a fluorescent base motif (C(12)) and a specific sequence (CCAGATACTCACCGG) that recognizes a gene for fumarylacetoacetate hydrolase (FAH). The sensing mechanism of our new probe is based on the FFDNA-Ag NCs having different stabilities (fluorescence intensities) in solutions containing 150 mM NaCl in the absence and presence of perfect match DNA (DNA(pmt)). Under the optimal conditions (150 mM NaCl, 20 mM phosphate solution, pH 7.0), the fluorescence ratios of the FFDNA-Ag NC probes in the presence and absence of DNA(pmt), plotted against the concentration of DNA(pmt), was linear over the range 25-1000 nM (R(2)=0.98), with a limit of detection (S/N=3) of 14 nM. This cost-effective and simple FFDNA-Ag NC probe is sensitive and selective for SNPs of a gene for FAH. |
| ISSN | 09565663 |
| Issue Number | 5 |
| Volume Number | 26 |
| e-ISSN | 18734235 |
| Journal | Biosensors and Bioelectronics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-01-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dna Mutational Analysis Instrumentation Dna Analysis Genetics In Situ Hybridization, Fluorescence Nanostructures Chemistry Oligonucleotides Silver Equipment Design Equipment Failure Analysis Polymorphism, Single Nucleotide Solutions 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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