Fabrication of Ag nanoparticles by g-irradiation: Application to surface-enhanced Raman spectroscopy of fungicides (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Fabrication of Ag nanoparticles by g-irradiation: Application to surface-enhanced Raman spectroscopy of fungicides (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.colsurfa.2009.01.018 (literal)

Alternative label

• Torreggiani, A. (2); Tamba, M. (2); D'Angelantonio, M. (2); Jurasekova, Z. (1); Garcia-Ramos, J. V. (1); Sanchez-Cortes, S. (1) (2009)
  Fabrication of Ag nanoparticles by g-irradiation: Application to surface-enhanced Raman spectroscopy of fungicides
  in Colloids and surfaces. A, Physicochemical and engineering aspects (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Torreggiani, A. (2); Tamba, M. (2); D'Angelantonio, M. (2); Jurasekova, Z. (1); Garcia-Ramos, J. V. (1); Sanchez-Cortes, S. (1) (literal)

Pagina inizio

• 60 (literal)

Pagina fine

• 67 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 339 (literal)

Rivista

• Colloids and surfaces. A, Physicochemical and engineering aspects (Rivista)

Note

• Scopu (literal)
• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• (1) Instituto de Estructura de la Materia - CSIC; (2) Istituto ISOF (CNR) - (literal)

Titolo

• Fabrication of Ag nanoparticles by g-irradiation: Application to surface-enhanced Raman spectroscopy of fungicides (literal)

Abstract

• This paper is concerned with the surface enhanced Raman scattering (SERS) activity of silver colloids obtained by a radiolytic method. Ag nanoparticles were successfully prepared by ?-radiolysis of Ag+ aqueous solution containing t-BuOH or i-PrOH at room temperature without the addition of aggregating or stabilizing substances. The metal colloids were characterised by UV/vis spectroscopy and scanning electron microscopy. Many experimental conditions were tested (i.e. Ag+ concentration, dose and oOH scavenger alcohol) in order to obtain the best controlled size of nanoparticles as well as the high stability of colloidal silver with time. The use of relatively low irradiation doses and Ag+ concentrations allowed to obtain very stable suspensions of Ag nanoparticles without adding any colloid stabiliser, a source of further spurious bands in the Raman spectra. The suitability of the ?- irradiated colloids in SERS spectroscopy was tested by using thiram, a known fungicide. Micro-SERS and SERS spectra of good quality were achieved at very low concentration of adsorbate, without the overlapping of impurities normally present in conventional citrate colloidal suspensions of Ag nanoparticles. (literal)

Prodotto di

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Modelli biomimetici di stress radicalico e biomarcatori correlati (PM.P06.006.001) (Modulo)

Autore CNR

• ARMIDA TORREGGIANI (Unità di personale interno)
• MILA D'ANGELANTONIO (Unità di personale interno)
• MAURIZIO TAMBA (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Fabrication of Ag nanoparticles by g-irradiation: Application to surface-enhanced Raman spectroscopy of fungicides" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Modelli biomimetici di stress radicalico e biomarcatori correlati (PM.P06.006.001) (Modulo)

Autore CNR di

• MILA D'ANGELANTONIO (Unità di personale interno)
• MAURIZIO TAMBA (Unità di personale interno)
• ARMIDA TORREGGIANI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Colloids and surfaces. A, Physicochemical and engineering aspects (Rivista)

Insieme di parole chiave di

• Keywords of "Fabrication of Ag nanoparticles by g-irradiation: Application to surface-enhanced Raman spectroscopy of fungicides" (Insieme di parole chiave)