{"93481":{"#nid":"93481","#data":{"type":"event","title":"(08-0828) Prof. Mostafa El-Sayed, Georgia Tech","body":[{"value":"\u003Cp\u003EProf. Mostafa El-Sayed, Georgia Tech\n\u003C\/p\u003E\n\u003Cp\u003EMetallic gold is more precious on the nanoscale: Radiative and photo thermal proper ties and some applications of gold nanoparticles in photonics, nanomotors, nanobiology and cancer therapy\n\u003C\/p\u003E\n\u003Cp\u003EBulk gold is precious because it does nothing but to keep its luster thus been used in decorating ancient artifacts for thousands of years. On the nanoscale, the absorption of resonant light induces in gold nanoparticles the localized surface plasmon oscillations that produce strong surface fields. This gives them new exciting properties\u003Csup\u003E1-3\u003C\/sup\u003E such as being strong light absorbers and scaterers and thus very useful in sensing and in medical diagnostics\u003Csup\u003E4\u003C\/sup\u003E,. When assembled, the scaling law\u003Csup\u003E5\u003C\/sup\u003E is used as a ruler to determine inter-site separations in biological systems. The strongly absorbed light energy by the gold nanoparticles is rapidly converted into heat leading to: 1) their melting or ablation  causing their propulsion thus making them useful as nanomotors\u003Csup\u003E6\u003C\/sup\u003E ; 2) the coherent oscillation\u003Csup\u003E7\u003C\/sup\u003E of their lattice could be used in light modulation in laser communication, and 3) heating its surroundings could be used to destroy selectively attached cancer or other unhealthy cells in cancer and medical photo-thermal therapy\u003Csup\u003E8\u003C\/sup\u003E. Successful animal model experiments of photo-thermal therapy of cancer tumors has been demonstrated.\u003Csup\u003E9\u003C\/sup\u003E\n\u003C\/p\u003E\n\u003Cp\u003EREFERENCES\u003Cbr \/\u003E\n1. Mostafa A. El-Sayed \u0022Some Interesting Properties of Metals Confined in Time and Nanometer Space of Different Shapes\u0022, Acc. Chem. Research, 34, (4), 257-264 (2001). Invited\u003Cbr \/\u003E\n2. Stephan Link, Mostafa A. El-Sayed, \u0022Optical Properties and Ultrafast Dynamics of Metallic Nanocrystals\u0022, Annual Review Phys. Chem., 54:331-66, (2003) Invited.\u003Cbr \/\u003E\n3. Burda, C.; Chen, X.; Narayanan, R.; El-Sayed, M. A. \u0022The Chemistry and Properties of Nanocrystals of Different Shapes\u0022, Chem. Rev., 2005, 105(4), 1025-1102. (Invited Review Article)\u003Cbr \/\u003E\n4. El-Sayed, Ivan; Huang, Xiaohua; El-Sayed, Mostafa A., \u0022Surface Plasmon Resonance Scattering and Absorption of anti-EGFR Antibody Conjugated Gold Nanoparticles in Cancer Diagnostics; Applications in Oral Cancer,\u0022 Nano Letters 4(5), 829-834, (2005).( ISI hot paper)\u003Cbr \/\u003E\n5. Prashant K. Jain, Wenyu Huang, and Mostafa A. El-Sayed \u0022On the universal scaling behavior of the distance decay of plasmon coupling in metal nanoparticle pairs, Biological Ruler Equation, Nano Letters, 7(7), 2080-2088, (2007).\u003Cbr \/\u003E\n6. Huang, W.Y.; Qian, W.; El-Sayed, M.A. Gold Nanoparticles Propulsion from Surface Fueled by Absorption of Femtosecond Laser Pulse at Their Surface Plasmon Resonance\u00ee J. Am. Chem. Soc. :Communication, 128,13330,(2006)\u003Cbr \/\u003E\n7. X. Huang; Wei Qian; Mostafa A. El-Sayed, \u0022Coherent Vibrational Oscillation in Gold Prismatic Monolayer Periodic Nanoparticle Arrays\u0022, Nano Lett, 4, (9), 1741-1747, (2004).\u003Cbr \/\u003E\n8. Xiaohua Huang; Ivan H. El-Sayed; Wei Qian and Mostafa A. El-Sayed, \u0022Cancer Cell Imaging and Photothermal Therapy in Near-Infrared Region by Using Gold Nanorods,\u0022 Journal of American Chem. Soc., 128, 2115-2120, (2006) [most cited paper in the field of chemistry, Sept-Oct 2007, most cited paper in JACS in 2007]\u003Cbr \/\u003E\n9. Erin B. Dickerson , Erik C. Dreaden , Xiaohua Huang , Ivan H. El-Sayed, Hunghao Chu, Sujatha Pushpanketh, John F. McDonald, Mostafa A. El-Sayed,\u0022 Goldnanorod assisted near-infrared plasmonic photo thermal therapy (PPTT) of Squamous cell carcinoma in mice\u0022, Cancer Letters, ASAP\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"Prof. Mostafa El-Sayed, Georgia Tech\n\nImmediately after Prof. El-Sayed\u0027s seminar there will be a reception in the lobby outside G011 to honor his selection to receive the National Medal of Science.","format":"limited_html"}],"field_summary_sentence":[{"value":"Prof. Mostafa El-Sayed, Georgia Tech"}],"uid":"27275","created_gmt":"2008-01-18 01:00:00","changed_gmt":"2016-10-08 01:57:24","author":"Shirley Tomes","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2008-08-28T16:00:00-04:00","event_time_end":"2008-08-28T17:00:00-04:00","event_time_end_last":"2008-08-28T17:00:00-04:00","gmt_time_start":"2008-08-28 20:00:00","gmt_time_end":"2008-08-28 21:00:00","gmt_time_end_last":"2008-08-28 21:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"related_links":[{"url":"http:\/\/www.chemistry.gatech.edu\/faculty\/El-Sayed\/","title":"Mostafa El-Sayed"}],"groups":[{"id":"85951","name":"School of Chemistry and Biochemistry"}],"categories":[],"keywords":[{"id":"1809","name":"physical 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":"\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","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}