Synthesis of hollow gold nanoparticles and rings using silver templates

Author

Edgar, Jonathan A. ; Zareie, Hadi M. ; Blaber, Martin ; Dowd, Annette ; Cortie, Michael B.

Author_Institution

Inst. for Nanoscale Technol., Univ. of Technol. Sydney, Sydney, NSW

fYear

2008

fDate

25-29 Feb. 2008

Firstpage

36

Lastpage

39

Abstract

Gold nanoshells have gained attention recently due to their versatile optical properties. In particular, their spectrally selective extinction has been exploited for experimental medical applications, functional coatings and contrast enhancement for analytical techniques. Here we discuss nanoshells and the formation of gold nanorings by the galvanic replacement of Ag nanosphere template particles. Hollow Au/Ag nanoshells can be converted to nanorings upon addition of excess HAuCl₄. Nanorings present a distinct particle geometry, with optical properties exhibiting characteristics of both nanorods and nanoshells.

Keywords

gold; nanoparticles; nanotechnology; silver; Au-Ag; gold nanorings; hollow gold nanoparticles; nanoshells; optical properties; particle geometry; silver templates; Biomedical equipment; Biomedical optical imaging; Galvanizing; Gold; Medical services; Nanoparticles; Optical films; Optical polymers; Potential well; Silver;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience and Nanotechnology, 2008. ICONN 2008. International Conference on

Conference_Location

Melbourne, Vic.

Print_ISBN

978-1-4244-1503-8

Electronic_ISBN

978-1-4244-1504-5

Type

conf

DOI

10.1109/ICONN.2008.4639239

Filename

4639239