Adsorption and Detection of DNA Dendrimers at Carbon Electrodes

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Autor(es): dc.contributorNew Mexico State University-
Autor(es): dc.contributorPolyprobe Inc.-
Autor(es): dc.contributorUniv. Nacional de Córdoba-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorWang, Joseph-
Autor(es): dc.creatorRivas, Gustavo-
Autor(es): dc.creatorFernandes, João Roberto-
Autor(es): dc.creatorJiang, Mian-
Autor(es): dc.creatorLopez Paz, José Luis-
Autor(es): dc.creatorWaymire, Russel-
Autor(es): dc.creatorNielsen, Thor W.-
Autor(es): dc.creatorGetts, Robert C.-
Data de aceite: dc.date.accessioned2025-08-21T21:37:46Z-
Data de disponibilização: dc.date.available2025-08-21T21:37:46Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1998-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/(SICI)1521-4109(199807)10:8<553-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223865-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223865-
Descrição: dc.descriptionDendritic nucleic acids are highly branched and ordered molecular structures, possessing numerous single-stranded oligonucleotide arms, which hold great promise for enhancing the sensitivity of DNA biosensors. This article evaluates the interfacial behavior and redox activity of nucleic acid dendrimers at carbon paste electrodes, in comparison to DNA. Factors influencing the adsorption behavior, including the adsorption potential and time, solution conditions, or dendrimer concentration, are explored. The strong adsorption at the anodically pretreated carbon surface is exploited for an effective preconcentration step prior to the chronopotentiometric measurement of the surface species. Coupled with the numerous guanine oxidation sites, such stripping protocol offers remarkably low detection limits (e.g., 3 pM or 2.4 femtomole of the 4-layer dendrimer following a 15 min accumulation). The new observations bear important implications upon future biosensing applications of nucleic dendrimers.-
Descrição: dc.descriptionDept. of Chemistry and Biochemistry New Mexico State University, Las Cruces, NM 88003-
Descrição: dc.descriptionPolyprobe Inc., 4170 City Avenue, Philadelphia, PA 19131-
Descrição: dc.descriptionDepto. Físico Química Univ. Nacional de Córdoba, Córdoba-
Descrição: dc.descriptionDepto. de Química/FC/UNESP, P.O. Box 473, Bauru, SP 17033-360-
Descrição: dc.descriptionDepto. de Química/FC/UNESP, P.O. Box 473, Bauru, SP 17033-360-
Formato: dc.format553-556-
Idioma: dc.languageen-
Relação: dc.relationElectroanalysis-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAdsorptive potentiometry-
Palavras-chave: dc.subjectBiosensors-
Palavras-chave: dc.subjectCarbon paste-
Palavras-chave: dc.subjectDendrimers-
Palavras-chave: dc.subjectDNA-
Palavras-chave: dc.subjectNucleic acids-
Título: dc.titleAdsorption and Detection of DNA Dendrimers at Carbon Electrodes-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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