DNA origami-directed, discrete three-dimensional plasmonic tetrahedron nanoarchitectures with tailored optical chirality.
ACS Appl Mater Interfaces
; 6(8): 5388-92, 2014 Apr 23.
Article
em En
| MEDLINE
| ID: mdl-24716524
ABSTRACT
Discrete, three-dimensional (3D) gold nanoparticle (AuNP) tetrahedron nanoarchitectures are successfully self-assembled with DNA origami as template with high purity (>85%). A distinct plasmonic chiral response is experimentally observed from the AuNP tetrahedron nanoarchitectures and appears in a configuration-dependent manner. The chiral optical properties are then rationally engineered by modifying the structural parameters including the AuNP size and interparticle distance. Theoretical study of the AuNP tetrahedron nanoarchitectures shows the dependence of the chiral optical property on the AuNP size and interparticle distance, consistent with the ensemble averaged measurements.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
DNA
/
Nanopartículas Metálicas
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Ouro
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article