Your browser doesn't support javascript.
loading
Thiosemicarbazone@Gold nanoparticle hybrid as selective SERS substrate for Hg2+ ions.
Franciscato, Douglas S; Matias, Tiago A; Shinohara, Jorge; Gonçalves, Josué M; Coelho, Narcimário P; Fernandes, Cleverton S; Basso, Ernani A; Nakatani, Helena S; Araki, Koiti; Toma, Henrique E; de Souza, Vagner R.
Afiliação
  • Franciscato DS; Department of Chemistry, State University of Maringá, Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil.
  • Matias TA; Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, CEP 05508-000 Sao Paulo, SP, Brazil.
  • Shinohara J; Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, CEP 05508-000 Sao Paulo, SP, Brazil.
  • Gonçalves JM; Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, CEP 05508-000 Sao Paulo, SP, Brazil.
  • Coelho NP; Instituto Federal de Mato Grosso do Sul, Rodovia MS-473, Km 23, Fazenda Santa Bárbara, CEP 79750-000 Nova Andradina, MS, Brazil.
  • Fernandes CS; Department of Chemistry, State University of Maringá, Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil.
  • Basso EA; Department of Chemistry, State University of Maringá, Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil.
  • Nakatani HS; Department of Chemistry, State University of Maringá, Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil.
  • Araki K; Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, CEP 05508-000 Sao Paulo, SP, Brazil.
  • Toma HE; Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, CEP 05508-000 Sao Paulo, SP, Brazil.
  • de Souza VR; Department of Chemistry, State University of Maringá, Av. Colombo 5790, CEP 87020-900 Maringá, PR, Brazil. Electronic address: vrsouza2@uem.br.
Spectrochim Acta A Mol Biomol Spectrosc ; 204: 174-179, 2018 Nov 05.
Article em En | MEDLINE | ID: mdl-29933152
The Raman spectral profile of p-methylcarbohydrazonethioamide (MCHT) is completely changed due to strong SERS effects upon bonding onto gold nanoparticles surface, but some vibrational modes are further enhanced in the presence of Hg(II) ions. The lack of SERS response for most common metal ions indicates that the coordinating groups are interacting with the gold nanoparticles surface and not available for binding metal ions in solution, except for mercury ions. The selective enhancement of some vibrational modes is consistent with significant conformational changes upon binding of Hg(II) ion onto the AuNP@MCHT hybrid, as confirmed by TEM/EDS measurements, demonstrating its potentiality as a highly selective and sensitive SERS substrate.
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Assunto da revista: BIOLOGIA MOLECULAR Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Assunto da revista: BIOLOGIA MOLECULAR Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido