Gold nanoparticles (AuNPS) can be used in many different applications due to their optoelectronic properties. Their optoelectronic properties can be changed by changing their size, shape, surface chemistry or aggregation state. They can be used as therapeutic agents, as drug delivery agents, as sensory probes, as conductors, as well as catalysts.<br/>The purpose of this research is to create functionalized gold nanogels for their application in catalysis. The novelty of our process is that the reduction and stabilization of gold nanoparticles is accomplished in one-step in presence of alkoxysilane-substituted polyethylenimine under mild reaction conditions. The versatility of the process is demonstrated by the fact that one can synthesize such particles in different solvents. First, in a one-pot reaction of gold salts with Trimethoxysilylpropyl modified Polyethylenimine (TMSP-PEI) was carried out under optimized reaction conditions, which led to the TMSPEI stabilized AuNPs. It was observed that amounts of TMSP-PEI have a marked effect on the size of resulting nanoparticles. Further polymerization of TMSP-PEI using sol-gel technique led to the formation of gold nano gels under various reaction conditions. We will present the results of these investigations as well as characterization of all new materiakls using various spectroscopic techniques. We will also present our studies of the physical and chemical properties of gold nanogels. In addition, we will also present our preliminary studies of the catalytic activity of these gels for effecting the reduction of 4-nitrophenol to 4-aminophenol.<br/>

One pot route to functionalized gold nanogels

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.