Folding Up of Gold Nanoparticle Strings into Plasmonic Vesicles for Enhanced Photoacoustic Imaging.
Angew Chem Int Ed Engl
; 54(52): 15809-12, 2015 Dec 21.
Article
en En
| MEDLINE
| ID: mdl-26555318
ABSTRACT
The stepwise self-assembly of hollow plasmonic vesicles with vesicular membranes containing strings of gold nanoparticles (NPs) is reported. The formation of chain vesicles can be controlled by tuning the density of the polymer ligands on the surface of the gold NPs. The strong absorption of the chain vesicles in the near-infrared (NIR) region leads to a much higher efficiency in photoacoustic (PA) imaging than for non-chain vesicles. The chain vesicles were further employed for the encapsulation of drugs and the NIR light triggered release of payloads. This work not only offers a new platform for controlling the hierarchical self-assembly of NPs, but also demonstrates that the physical properties of the materials can be tailored by controlling the spatial arrangement of NPs within assemblies to achieve a better performance in biomedical applications.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Acústica
/
Nanopartículas del Metal
/
Oro
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Año:
2015
Tipo del documento:
Article