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Sum frequency generation spectroscopy of small molecules adsorbed at interfaces

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The adsorption of small molecules on surfaces in order to control the physical and chemical properties of the interface is ubiquitous in both the industrial and natural world. This talk applies the interface specific technique of Sum Frequency Generation Spectroscopy (SFG) to determine the orientation and conformational ordering of a selection of small molecules at a model biological interface (cholesterol on a hybrid bilayer membrane) and an industrially relevant interface (a friction reduction additive at the metal/oil interface). This talk highlights the ability of SFG to probe molecular conformation at a variety of buried interfaces that are difficult to access in situ with other surface analytical approaches.

This talk is part of the Surfaces, Microstructure and Fracture Group series.

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