Synthesis of branched Au nanoparticles with tunable near-infrared LSPR using a zwitterionic surfactant

Synthesis of branched Au nanoparticles with tunable near-infrared LSPR using a zwitterionic surfactant

Asymmetric branched gold nanoparticles are obtained using for the first time in the seed-growth approach a zwitterionic surfactant, laurylsulfobetaine, whose concentration in the growth solution allows to control both the length to base-width ratio of the branches and the LSPR position, that can be...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2011-01, Vol.47 (4), p.1315-1317
Hauptverfasser: Pallavicini, P, Chirico, G, Collini, M, Dacarro, G, Donà, A, D'Alfonso, L, Falqui, A, Diaz-Fernandez, Y, Freddi, S, Garofalo, B, Genovese, A, Sironi, L, Taglietti, A
Format: Artikel
Sprache:eng
Schlagworte:
Asymmetry
Branched
Gold
Gold - chemistry
Infrared
Metal Nanoparticles - chemistry
Metal Nanoparticles - ultrastructure
Nanoparticles
Spectrophotometry, Ultraviolet
Surface Plasmon Resonance
Surface-Active Agents - chemistry
Surfactants
Synthesis
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Zusammenfassung:Asymmetric branched gold nanoparticles are obtained using for the first time in the seed-growth approach a zwitterionic surfactant, laurylsulfobetaine, whose concentration in the growth solution allows to control both the length to base-width ratio of the branches and the LSPR position, that can be tuned in the 700-1100 nm near infrared range.
ISSN:1359-7345
1364-548X
DOI:10.1039/c0cc02682d