COLL 224 |
| Interparticle amino acid interactions have been found to play an important role for the amino acid mediated assembly of nanoparticles. The understanding of the interactions at a molecular level is important for exploring their potential applications in sensors and biosensors. In this presentation, recent findings of a study of the homocysteine-mediated assembly of gold nanoparticles on planar gold substrates will be discussed. The nanoparticle assemblies are characterized using infrared reflectance spectroscopy (IRS) and atomic force microscopy (AFM) techniques. The IRS and AFM characterization results provide important information for determining the structural and morphological properties of the nanoparticle assemblies. The results are useful for the correlation between the structure of the amino acids and the resulting morphology of the nanoparticle assembly. Implications of the findings to the understanding of the detailed interparticle interactions involving amino acids, proteins and DNAs will also be discussed. |
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Fundamental Research in Colloid and Surface Chemistry
6:00 PM-8:00 PM, Monday, August 20, 2007 BCEC -- East Registration, Poster
Division of Colloid & Surface Chemistry |