Source:http://linkedlifedata.com/resource/pubmed/id/17079194
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2007-4-6
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pubmed:abstractText |
This paper reports a novel detection method for DNA hybridization based on the electrochemiluminescence (ECL) of Ru(bpy)(3)(2+) with a DNA-binding intercalator as a reductant of Ru(bpy)(3)(3+). Some ECL-inducible intercalators have been screened in this study using electrochemical methods combined with a chemiluminescent technique. The double-stranded DNA intercalated by doxorubicin, daunorubicin, or 4',6-diamidino-2-phenylindole (DAPI) shows a good ECL with Ru(bpy)(3)(2+) at +1.19 V (versus Ag/AgCl), while the non-intercalated single-stranded DNA does not. In order to stabilize the self-assembled DNA molecules during ECL reaction, we constructed the ECL DNA biosensor separating the ECL working electrode with an immobilized DNA probe. A gold electrode array on a plastic plate was assembled with a thru-hole array where oligonucleotide probes were immobilized in the side wall of thru-hole array. The fabricated ECL DNA biosensor was used to detect several pathogens using ECL technique. A good specificity of single point mutations for hepatitis disease was obtained by using the DAPI-intercalated Ru(bpy)(3)(2+) ECL.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1567-5394
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
70
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
228-34
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:17079194-Biosensing Techniques,
pubmed-meshheading:17079194-DNA,
pubmed-meshheading:17079194-Electrochemistry,
pubmed-meshheading:17079194-Equipment Design,
pubmed-meshheading:17079194-Equipment Failure Analysis,
pubmed-meshheading:17079194-In Situ Hybridization, Fluorescence,
pubmed-meshheading:17079194-Intercalating Agents,
pubmed-meshheading:17079194-Luminescent Measurements,
pubmed-meshheading:17079194-Organometallic Compounds,
pubmed-meshheading:17079194-Reproducibility of Results,
pubmed-meshheading:17079194-Sensitivity and Specificity
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pubmed:year |
2007
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pubmed:articleTitle |
DNA biosensor based on the electrochemiluminescence of Ru(bpy)3(2+) with DNA-binding intercalators.
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pubmed:affiliation |
Bio Electronics Group, LG Electronics Institute of Technology, 16 Woomyeon-dong, Seocho-gu, Seoul 137-724, South Korea.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Evaluation Studies
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