CHED 495 |
| Nanoparticles are being used in myriad applications, ranging from gas-phase catalysis to biosensing. For many of these intended applications, functionalizing the surface of the nanoparticle is necessary. Often this nanoparticle surface chemistry involves attachment of several different molecules to achieve the desired properties for the nanoparticle. Here we describe the formation of bifunctionalized gold nanoparticles. These nanoparticles contain both a molecule to promote nanoparticle adsorption onto specific substrates, such as SiO2, and either a methyl- or hydroxyl-terminated alkanethiol. These bifunctionalized nanoparticles are dispersed on SiO2 through an immersion method. Following dispersion, the temporal stability of the nanoparticle thin films is monitored using a battery of analytical techniques, including contact angle goniometry. Results from these studies are described along with the implications for long term use of nanoparticle thin films. |
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Undergraduate Research Poster Session: Nanotechnology
11:00 AM-1:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |