Chemistry Colloquium

Professor Kathryn Riley, Swarthmore College

"Probing Nanomaterial Transformations at the Nano, Molecular, and Biomolecular Scale"

The properties of materials (e.g., optical properties, electrical conductivity, reactivity, etc.) change at the nanoscale. Scientists have developed ways to precisely engineer materials with nanoscale dimensions, called engineered nanomaterials (ENMs). This has opened new pathways for addressing important questions regarding the environment and human health, including water purification, alternative energy, and improved medical diagnostics and treatments. However, the release of these materials into the environment has raised concern over their potential harmful effects to environmental and biological systems. Once in these environments, nanomaterials can undergo a number of dynamic transformations like dissolution, aggregation, and protein adsorption. In this talk, we will discuss the development of analytical tools, including electrochemistry, UV-Vis spectroscopy, and capillary electrophoresis, to probe each of these ENM transformations.

Friday, April 6 at 1:10pm

Thompson Chemistry, 202

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