Plasmonic imaging of brownian motion of single DNA molecules spontaneously binding to Ag nanoparticles.
Nano Lett
; 13(5): 1877-82, 2013 May 08.
Article
em En
| MEDLINE
| ID: mdl-23547650
ABSTRACT
We find the spontaneous binding of single DNA molecules to uncoated silver nanoparticles (AgNPs) in aqueous solution with Mn(2+) (3 mM). From dark-field optical microscopic imaging of AgNPs bound to DNA molecules, we demonstrate analysis of the Brownian motion of single DNA molecules via plasmon resonance elastic light scattering. Our results provide that the plasmonic imaging technique is free from photobleaching and blinking and thus is useful in long-time observations of single-molecule DNA dynamics.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Prata
/
DNA
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Ressonância de Plasmônio de Superfície
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Nanopartículas Metálicas
Idioma:
En
Revista:
Nano Lett
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Japão