Gold Nanorod Surface-Enhanced Raman Spectroscopy Substrate for l-DOPA Detection: Experimental and Theoretical Approaches

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorde Oliveira, Tatiana Ap.-
Autor(es): dc.creatorS. Martin, Cibely-
Autor(es): dc.creatorJ.G. Rubira, Rafael-
Autor(es): dc.creatorde Barros, Anerise-
Autor(es): dc.creatorMazali, Italo O.-
Autor(es): dc.creatorZidoi, Luiz P.-
Autor(es): dc.creatorBatagin-Neto, Augusto-
Autor(es): dc.creatorConstantino, Carlos J.L.-
Data de aceite: dc.date.accessioned2025-08-21T22:07:38Z-
Data de disponibilização: dc.date.available2025-08-21T22:07:38Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1177/00037028251315208-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300858-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300858-
Descrição: dc.descriptionExperimental efforts aimed at detecting levodopa (l-DOPA) using surface-enhanced Raman scattering (SERS) face a persistent challenge in obtaining a SERS signal with negatively charged nanoparticles. This challenge stems from the repulsion between deprotonated l-DOPA in aqueous solution and the charged surface of the nanoparticles, revealing dependencies on time and concentration to achieve the SERS signal. This study explores the adsorption mechanism of l-DOPA on the surface of gold nanorods (AuNRs) covered with a cetrimonium bromide (CTAB) bilayer as a colloidal solution, subsequently dried onto a solid substrate such as glass, silicon, and Au substrate. Experimental findings are supported by density functional theory theoretical calculations. The comparison between experimental and theoretical results highlights that the SERS profile can be attributed to the adsorption of l-DOPA via the catechol ring, leading to the formation of anionic and dianionic species.-
Descrição: dc.descriptionSchool of Technology and Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP), SP-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences (IGCE) São Paulo State University (UNESP), SP-
Descrição: dc.descriptionLaboratory of Functional Materials Institute of Chemistry University of Campinas (UNICAMP), SP-
Descrição: dc.descriptionSchool of Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionInstitute of Sciences and Engineering São Paulo State University (UNESP), SP-
Descrição: dc.descriptionSchool of Technology and Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP), SP-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences (IGCE) São Paulo State University (UNESP), SP-
Descrição: dc.descriptionSchool of Sciences São Paulo State University (UNESP), SP-
Descrição: dc.descriptionInstitute of Sciences and Engineering São Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationApplied Spectroscopy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectdensity functional theory-
Palavras-chave: dc.subjectdetection-
Palavras-chave: dc.subjectDFT-
Palavras-chave: dc.subjectgold nanoparticles-
Palavras-chave: dc.subjectl-DOPA-
Palavras-chave: dc.subjectSERS-
Palavras-chave: dc.subjectsurface-enhanced Raman spectroscopy-
Título: dc.titleGold Nanorod Surface-Enhanced Raman Spectroscopy Substrate for l-DOPA Detection: Experimental and Theoretical Approaches-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.