In biomembranes, the interactions of molecules across neighboring raft domains is thought to be mediated by membrane curvature.  In the solid-containing membranes of interest for applications requiring dynamic materials patterning, these curvature-mediated interactions can form the basis for new responsive patterned materials having dynamic connectivity.  This talk demonstrates, based on new experimental findings, how interactions between membrane domains depend on specific variables:  domain sizes, global membrane curvature (vesicle size), and local curvature (depending on excess area or “floppiness”).  Depending on the ranges of these variables, interactions can be switched from attractive to repulsive, leading to two dimensional aggregation of domains in some cases and ordering in others.  We demonstrate how control of curvature mediates the distance between rigid domains, potentially of importance in cells (when proteins impart domain stiffness and resistance to shear) and materials alike.<br/>

Principles of tension- and curvature-controlled solid domaininteractions on vesicle membranes: Frombiomolecular constructs to responsive materials

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.