{"499591":{"#nid":"499591","#data":{"type":"event","title":"Curvature Directed Assembly","body":[{"value":"\u003Ch4\u003E\u003Cstrong\u003EColloquium: Prof. Kathleen Stebe, University of Pennsylvania\u003Cbr \/\u003E\u003C\/strong\u003E\u003C\/h4\u003E\u003Cp\u003EIn materials science, the control over the spatial arrangement of colloids in soft matter hosts\u003Cbr \/\u003Eimplies control over a wide variety of materials properties, ranging from the system\u2019s rheology,\u003Cbr \/\u003Eto its optics, to its catalytic activity. To direct particle assembly, colloids are often manipulated\u003Cbr \/\u003Eusing external fields to steer them into well-defined structures at given locations. We have\u003Cbr \/\u003Ebeen developing alternative strategies based on fields that arise when a colloid is placed within\u003Cbr \/\u003Esoft matter to form an inclusion that generates a potential field in its host. Such potential fields\u003Cbr \/\u003Eallow particles to interact with each other. If the soft matter host is deformed in some way,\u003Cbr \/\u003Ethe potential allows the particles to interact with the global system distortion. The concept is\u003Cbr \/\u003Equite general, and applied within any medium in which distortions cost energy. We have\u003Cbr \/\u003Eexplored these ideas in three media: curved fluid interfaces, where particles interact with the\u003Cbr \/\u003Ehost interface via capillarity; confined nematic liquid crystals, where particles interact with the\u003Cbr \/\u003Ehost director field via elastic interactions, and deformed lipid bilayers, where particles interact\u003Cbr \/\u003Eo tense membranes. These example systems have important analogies and pronounced\u003Cbr \/\u003Edifferences which we seek to understand and exploit.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Curvature Directed Assembly"}],"uid":"27664","created_gmt":"2016-02-12 12:02:22","changed_gmt":"2017-04-13 21:16:40","author":"Alison Morain","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2016-03-07T14:00:00-05:00","event_time_end":"2016-03-07T15:00:00-05:00","event_time_end_last":"2016-03-07T15:00:00-05:00","gmt_time_start":"2016-03-07 19:00:00","gmt_time_end":"2016-03-07 20:00:00","gmt_time_end_last":"2016-03-07 20:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"126011","name":"School of Physics"}],"categories":[],"keywords":[{"id":"166937","name":"School of Physics"},{"id":"166896","name":"seminar"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78751","name":"Undergraduate students"},{"id":"78761","name":"Faculty\/Staff"},{"id":"174045","name":"Graduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Ca href=\u0022mailto:amorain@gatech.edu\u0022\u003Eamorain@gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}