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http://hdl.handle.net/10261/164270
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dc.contributor.author | Hoyos-Nogués, Mireia | es_ES |
dc.contributor.author | Brosel-Oliu, Sergi | - |
dc.contributor.author | Abramova, Natalia | - |
dc.contributor.author | Muñoz Pascual, Francisco Javier | - |
dc.contributor.author | Bratov, Andrey | - |
dc.contributor.author | Mas-Moruno, Carlos | - |
dc.contributor.author | Gil, Francesc-Xavier | - |
dc.date.accessioned | 2018-04-27T08:43:14Z | - |
dc.date.available | 2018-04-27T08:43:14Z | - |
dc.date.issued | 2016-02-15 | - |
dc.identifier.citation | Biosensors and Bioelectronics 86: 377-385 (2016) | es_ES |
dc.identifier.issn | 0956-5663 | - |
dc.identifier.uri | http://hdl.handle.net/10261/164270 | - |
dc.description.abstract | Peri-implantitis, an inflammation caused by biofilm formation, constitutes a major cause of implant failure in dentistry. Thus, the detection of bacteria at the early steps of biofilm growth represents a powerful strategy to prevent implant-related infections. In this regard, antimicrobial peptides (AMPs) can be used as effective biological recognition elements to selectively detect the presence of bacteria. Thus, the aim of the present study was to combine the use of miniaturized and integrated impedimetric transducers and AMPs to obtain biosensors with high sensitivity to monitor bacterial colonization. Streptococcus sanguinis, which is one of the most prevalent strains in the onset of periodontal diseases, was used as a model of oral bacteria. To this end, a potent AMP derived from human lactoferrin was synthesized and covalently immobilized on interdigitated electrode arrays (IDEA). X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS) were employed to optimize and characterize the method of immobilization. Noteworthy, the interaction of Streptococcus sanguinis with AMP-coated sensors provoked significant changes in the impedance spectra, which were univocally associated with the presence of bacteria, proving the feasibility of our method. In this regard, the developed biosensor permits to detect the presence of bacteria at concentrations starting from 101 colony forming units (CFU) mL−1 in KCl and from 102 CFU mL−1 in artificial saliva. Moreover, the system was devoid of cytotoxicity for human fibroblasts. These results indicate that the proposed approach can be effective in the detection of initial stages of biofilm formation, and may be useful in the early prevention and treatment of peri-implantitis. | - |
dc.description.sponsorship | The authors acknowledge financial support from the Spanish Government through projects CTQ2014-54553-C3-1-R and MAT2015-67183-R, cofunded by the European Union through European Regional Development Funds, the Government of Catalonia (SGR2014 01333), the Technical University of Catalonia (fellowship of M.H.) and the European Union (Project ENIAC-ED-52v161210, and FP7-PEOPLE-2012-CIG, REA Grant Agreement No. 321985). This work was partially supported by Government of Russian Federation, Grant 074-U01. | - |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2014-54553-C3-1-R | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-67183-R | - |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/321985 | - |
dc.relation.isversionof | Postprint | es_ES |
dc.rights | openAccess | en_EN |
dc.subject | Impedimetric biosensors | - |
dc.subject | Antimicrobial peptides | - |
dc.subject | Peri-implantitis | - |
dc.subject | Bacterial detection | - |
dc.subject | Biofunctionalization | - |
dc.title | Impedimetric antimicrobial peptide-based sensor for the early detection of periodontopathogenic bacteria | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1016/j.bios.2016.06.066 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.bios.2016.06.066 | - |
dc.identifier.e-issn | 1873-4235 | - |
dc.rights.license | http://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | Generalitat de Catalunya | - |
dc.contributor.funder | Russian Government | - |
dc.relation.csic | Sí | es_ES |
oprm.item.hasRevision | no ko 0 false | * |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002809 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
Aparece en las colecciones: | (IMB-CNM) Artículos |
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BIOS-S-15-04083-2.pdf | 2,93 MB | Adobe PDF | Visualizar/Abrir |
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