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SPR-based single nucleotide mismatch biosensor

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SPR-based single nucleotide mismatch biosensor

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dc.contributor.author Milkani, E. es_ES
dc.contributor.author Khaing, A.M. es_ES
dc.contributor.author Morais Ezquerro, Sergi Beñat es_ES
dc.contributor.author C.R. LAMBERT es_ES
dc.contributor.author W.G. MCGIMPSEY es_ES
dc.date.accessioned 2013-04-15T08:48:54Z
dc.date.available 2013-04-15T08:48:54Z
dc.date.issued 2011
dc.identifier.issn 1759-9660
dc.identifier.uri http://hdl.handle.net/10251/27814
dc.description.abstract The detection and characterization of the hybridization event of 21-base, unlabeled DNA oligonucleotides with a monolayer of complementary DNA immobilized on a gold surface, by electrochemical impedance spectroscopy and surface plasmon resonance (SPR) is presented. A thiol modification on the probe DNA strand allowed for its attachment to the surface via self-assembly. For the hybridization of full match target DNA a detection limit of 20 pM was determined. RNA hybridization was also detectable with the same sensor, with a similar detection limit. The SPR signal generated upon hybridization of the full match was always distinguishable from the single mismatch target DNA oligonucleotides when the mismatch was in the middle or at the proximal end of the target DNA sequence. However, the response of the sensor was identical for the hybridization of the full match and the distal end mismatch. The SPR sensor described is reusable over at least 20 hybridization/regeneration cycles and is insensitive to flow rate (20-800 L min -1) or temperature (20-60°C). Based on the SPR response, the surface density of the probe was estimated to be at least 4.3 ¿ 10 12 molecules per cm 2. © 2011 The Royal Society of Chemistry. es_ES
dc.description.sponsorship This project was partially supported by the US Army Medical Research and Materiel Command (USAMRMC) and the Telemedicine and Advanced Technology Research Center (TATRC) We note that ICx Nomadics (Stillwater, OK, USA) is now ICx Technologies (Arlington, VA, USA). en_EN
dc.language Inglés es_ES
dc.publisher Royal Society of Chemistry
dc.relation.ispartof Analytical Methods es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Detection limits es_ES
dc.subject DNA oligonucleotides es_ES
dc.subject DNA strands es_ES
dc.subject Gold surfaces es_ES
dc.subject RNA hybridization es_ES
dc.subject Single nucleotides es_ES
dc.subject SPR sensors es_ES
dc.subject SPR signals es_ES
dc.subject Surface density es_ES
dc.subject Biosensors es_ES
dc.subject DNA es_ES
dc.subject Electrochemical corrosion es_ES
dc.subject Electrochemical impedance spectroscopy es_ES
dc.subject Monolayers es_ES
dc.subject Nucleic acids es_ES
dc.subject Oligonucleotides es_ES
dc.subject Probes es_ES
dc.subject RNA es_ES
dc.subject Surface plasmon resonance es_ES
dc.subject.classification QUIMICA ANALITICA es_ES
dc.title SPR-based single nucleotide mismatch biosensor es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1039/c0ay00492h
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.description.bibliographicCitation Milkani, E.; Khaing, A.; Morais Ezquerro, SB.; C.R. LAMBERT; W.G. MCGIMPSEY (2011). SPR-based single nucleotide mismatch biosensor. Analytical Methods. 3:122-132. https://doi.org/10.1039/c0ay00492h es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1039/c0ay00492h es_ES
dc.description.upvformatpinicio 122 es_ES
dc.description.upvformatpfin 132 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 3 es_ES
dc.relation.senia 215063
dc.contributor.funder Medical Research and Materiel Command
dc.contributor.funder Telemedicine and Advanced Technology Research Center, EE.UU.


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