{"336651":{"#nid":"336651","#data":{"type":"event","title":"Ph.D. Defense by Brandon Goodwin","body":[{"value":"\u003Cp\u003EMSE PhD Defense - \u003Cstrong\u003EBrandon Goodwin\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDate: Monday, October 27\u003Cbr \/\u003ELocation: MoSE, room 4100F.\u003Cbr \/\u003ETime: 11:00 am\u003C\/p\u003E\u003Cp\u003ECommittee members:\u003Cbr \/\u003EProf. Kenneth H. Sandhage, (Advisor) MSE\u003Cbr \/\u003EProf. Melin Liu, MSE\u003Cbr \/\u003EProf. Christopher Summers, MSE\u003Cbr \/\u003EProf. Dr. Carson Meredith, ChBE\u003Cbr \/\u003EProf. Z. John Zhang, Chem\u003C\/p\u003E\u003Cp\u003ETitle:\u003Cstrong\u003E Controlled Force Modulation of Short- and Long-ranged Adhesion of Microscale Biogenic Replicas\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EThe generation of nanostructured microscale assemblies with complex, three-dimensional (3-D) morphologies, possessing multicomponent inorganic compositions tailored for adhesion, is of considerable scientific and technological interest. This dissertation demonstrates how self-assembled 3-D organic templates of biogenic origin can be converted into replicas comprised of numerous other functional nanocrystalline inorganic materials and, further, how such replicas can be tailored for adhesion. Nature provides a spectacular variety of biologically-assembled 3-D organic structures with intricate, hierarchical (macro-to-micro-to-nanoscale) morphologies designed for particle adhesion. The conformal coating of such readily-available, structurally-complex biotemplates with synthetic materials provides a framework for chemical transformation of other, complex synthetic organic templates and the basis to study imparted adhesion properties.\u003Cbr \/\u003E Three specific research thrusts have been detailed in this thesis research. First, freestanding magnetite replicas of bio-organic templates have been synthesized via a layer-by-layer (LbL) wet chemical deposition process and subsequent morphology-preserving thermal treatments to allow for structures with tailorable long-range magnetic adhesion. Second, freestanding spinel ferrite replicas of bio-organic templates have been synthesized (via LbL coating and thermal treatment) for grain size controlled long-range magnetic adhesion and short-range van der Waals adhesion. The final research thrust focused on the use of a low temperature (\u2264 250\u00b0C) wet-chemical based process for transforming bioorganic templates into magnetically-coated structures retaining both the size and morphology of the template. The rate-limiting kinetic mechanism of this transformation has been examined via quartz crystal microbalance analyses. The effects of the coating micro\/nanostructure on magnetic behavior, and on surface adhesion, have been investigated.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Controlled Force Modulation of Short- and Long-ranged Adhesion of Microscale Biogenic Replicas"}],"uid":"28077","created_gmt":"2014-10-23 13:12:35","changed_gmt":"2016-10-08 02:09:54","author":"Danielle Ramirez","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2014-10-27T12:00:00-04:00","event_time_end":"2014-10-27T14:00:00-04:00","event_time_end_last":"2014-10-27T14:00:00-04:00","gmt_time_start":"2014-10-27 16:00:00","gmt_time_end":"2014-10-27 18:00:00","gmt_time_end_last":"2014-10-27 18:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"1808","name":"graduate students"},{"id":"10774","name":"MSE"},{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}