Quenching and blinking of fluorescence of a single dye molecule bound to gold nanoparticles (Articolo in rivista)

Type

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

Label

• Quenching and blinking of fluorescence of a single dye molecule bound to gold nanoparticles (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Cannone, F; Chirico, G; Bizzarri, AR; Cannistraro, S (2006)
  Quenching and blinking of fluorescence of a single dye molecule bound to gold nanoparticles
  
  (literal)

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

• Cannone, F; Chirico, G; Bizzarri, AR; Cannistraro, S (literal)

Pagina inizio

• 16491 (literal)

Pagina fine

• 16498 (literal)

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

• 110 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Univ Tuscia, Dipartimento Sci Ambientali, INFM, CNISM,Biophys & Nanosci Ctr, I-01100 Viterbo, Italy; Univ Milan, CNR, Dept Phys, INFM,LABS, I-20126 Milan, Italy (literal)

Titolo

• Quenching and blinking of fluorescence of a single dye molecule bound to gold nanoparticles (literal)

Abstract

• A fluorescein derivative ( SAMSA) bound to gold nanoparticles of different diameters is investigated by time-resolved fluorescence at the single molecule level in a wide dynamic range, from nanosecond to second time scale. The significant decrease of both SAMSA excited state lifetime and fluorescence quantum yield observed upon binding to gold nanoparticles can be essentially traced back to an increase of the nonradiative deactivation rate, probably due to energy transfer, that depends on the nanoparticle size. A slow single molecule fluorescence blinking, in the ms time scale, has a marked dependence on the excitation intensity both under single and under two photon excitation. The blinking dynamics is limited by a low probability nonlinear excitation to a high energy state from which a transition to a dark state occurs. The results point out a strong coupling between the vibro-electronic configuration of the dye and the plasmonic features of the metal nanoparticles that provide dye radiationless deactivation channels on a wide dynamic range. (literal)

Prodotto di

• Fotonica ultrabreve dall'infrarosso al EUV: applicazioni a materiali e dispositivi per ICT, magnetismo, biomedicina e nanoscienze (MD.P03.008.001) (Modulo)

Autore CNR

• GIUSEPPE CHIRICO (Unità di personale esterno)

Insieme di parole chiave

• Keywords of "Quenching and blinking of fluorescence of a single dye molecule bound to gold nanoparticles" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GIUSEPPE CHIRICO (Unità di personale esterno)

Prodotto

• Fotonica ultrabreve dall'infrarosso al EUV: applicazioni a materiali e dispositivi per ICT, magnetismo, biomedicina e nanoscienze (MD.P03.008.001) (Modulo)

Insieme di parole chiave di

• Keywords of "Quenching and blinking of fluorescence of a single dye molecule bound to gold nanoparticles" (Insieme di parole chiave)