Nanodiscs are self-assembled structures composed of phospholipids containing a stabilizing membrane-scaffold protein or, in the case of this proposal, a polymer belt. They are capable of encapsulating single membrane proteins and as such have many potential uses including the delivery of membrane proteins to cell surfaces. In this proposal we wish to study how polymer stabilised nanodiscs interact with air-liquid surfaces. This forms part of a broader investigation looking at how membrane proteins can be delivered to interfaces (including solid-liquid) for incorporation into model membranes or to act as nucleation sites for bulk crystalisation. A first step in this direction is to understand how these discs behave at an interface without the additional complication of proteins. The air-liquid surface presents a convenient interface for these initial studies.