Physics and Astronomy Publications
Title
Surface Immobilized Gold Nanoparticles by Organometallic Chemical Vapor Deposition on Amine Terminated Glass Surfaces
Document Type
Article
Publication Date
2013
Journal
Chemical Vapor Deposition
Volume
19
Issue
10-11-12
First Page
338
Last Page
346
URL with Digital Object Identifier
https://doi.org/10.1002/cvde.201307055
Abstract
We describe the growth of surface immobilized gold nanoparticles with organometallic chemical vapour deposition (OMCVD) on amine terminated surfaces, utilizing (trimethylphospine)methylgold ((CH3)3PAuCH3) precursor. Samples fabricated using different deposition times were characterized by UV-Vis spectroscopy and scanning electron microscopy. Particle stability on the samples was tested by washing and rinsing treatments with various organic solvents. A biotin-streptavidin scheme was applied to demonstrate the biosensing capabilities of the samples. The size, interparticle distance, and shape of the gold nanoparticles demonstrated that OMCVD is a simple, economic, and fast way to fabricate surface bonded and stable gold nanoparticles. The plasmonic properties, the stability of the particles and the biotin-streptavidin test showed that these OMCVD-grown gold nanoparticles are suitable for reproducible, low noise and highly sensitive biosensing applications.