{"89341":{"#nid":"89341","#data":{"type":"event","title":"Prof. George Schatz, Northwestern University","body":[{"value":"\u003Cp\u003EProf. George Schatz, Northwestern University\n\n\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003EGold Nanoparticle\nStructures and Optical Properties\n  \u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003EPhysical Chemistry Seminar Series\u003C\/p\u003E\u003Cp\u003EGold (and\nsilver) nanoparticles and nanostructures have unique physical and chemical\nproperties that have created new opportunities for biomedical applications in\ndiagnostics and therapeutics, and in optical and electronic materials.\u0026nbsp; This talk will describe experimental and\ntheoretical research that has led to the synthesis and fabrication of unusual gold\nand silver nanostructures, to their chemical functionalization, and to the\ndevelopment of optical and other techniques for their use in practical\napplications. One class of nanomaterial involves the use of DNA to\nfunctionalize and link together gold nanoparticles to produce gel-like\nmaterials that have found applications in both biological sensing and in the\nuse of nucleic acids as drugs. Here I emphasize a new class of superlattice crystalline\nmaterial constructed from DNA-linked gold particles that provides unique\ncapabilities for building complex structures that enable applications that\ncombine plasmonics and photonics. \u0026nbsp;\u0026nbsp;Another\nclass of nanostructure involves aggregated gold and silver particles with very\nsmall (\u0026lt;1nm) gaps.\u0026nbsp; Small gaps provide\nopportunities for producing extremely high (\u0026gt;10\u003Csup\u003E8\u003C\/sup\u003E) enhancement\nfactors for surface enhanced Raman spectroscopy (SERS) studies.\u0026nbsp; Here I describe recent applications to single\nmolecule and single particle SERS, as well as related work on tip-enhanced\nRaman spectroscopy.\u0026nbsp; The use of theory to\nguide and interpret the experimental work is emphasized throughout this talk.\u003C\/p\u003E\u003Cp\u003EFor more information contact \u003Ca href=\u0022mailto:melsayed@gatech.edu\u0022\u003EProf. Mostafa El-Sayed\u003C\/a\u003E (404-894-0292) or \u003Ca href=\u0022mailto:christine.payne@chemistry.gatech.edu\u0022\u003EProf. Christine Payne\u003C\/a\u003E (404-385-3125).\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EProf. George Schatz, Northwestern University\n\n\u003Cem\u003E\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003EGold Nanoparticle\nStructures and Optical Properties\n\u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003EPhysical Chemistry Seminar Series\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":"","uid":"27275","created_gmt":"2011-08-02 00:00:00","changed_gmt":"2016-10-08 01:50:49","author":"Shirley Tomes","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2012-03-20T17:00:00-04:00","event_time_end":"2012-03-20T18:00:00-04:00","event_time_end_last":"2012-03-20T18:00:00-04:00","gmt_time_start":"2012-03-20 21:00:00","gmt_time_end":"2012-03-20 22:00:00","gmt_time_end_last":"2012-03-20 22:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"http:\/\/www.theory.northwestern.edu\/schatz\/","title":"Prof. George Schatz, Northwestern University"}],"groups":[{"id":"85951","name":"School of Chemistry and Biochemistry"}],"categories":[],"keywords":[{"id":"89","name":"chemistry"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003E\u003Cstrong\u003EShirley Tomes\u003C\/strong\u003E\u003Cbr \/\u003EChemistry \u0026amp; Biochemistry\u003Cbr \/\u003E\u003Ca href=\u0022http:\/\/www.gatech.edu\/contact\/index.html?id=st81\u0022\u003EContact Shirley Tomes\u003C\/a\u003E\u003Cbr \/\u003E\u003Cstrong\u003E404-894-0591\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}