Physiology and Pharmacology Publications

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.

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