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Fedeyko, J. M.; Rimer, J. D.; Vlachos, D. G.; Lobo, R. F.

IMR: Acquisition of a Small-Angle X-Ray Scattering Camera for Research and Education Darrin J. Pochan, University of Delaware DMR-0414935.

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Fedeyko, J. M.; Rimer, J. D.; Vlachos, D. G.; Lobo, R. F.

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  1. IMR: Acquisition of a Small-Angle X-Ray Scattering Camera for Research and Education Darrin J. Pochan, University of DelawareDMR-0414935 The IMR has been used to aquire a SAXSess small-angle x-ray camera from Anton Paar to be used as a piece of central equipment for the college of engineering at the University of Delaware. To date, it is being used primarily by students and post-docs from the Materials Science and Engineering Department and the Chemical Engineering Department. Fedeyko, J. M.; Rimer, J. D.; Vlachos, D. G.; Lobo, R. F. "Spontaneous Formation of Silica Nanoparticles in Basic Solutions of Small Tetraalkylammonium Cations." J. Phys. Chem. B. 2004, 108, 12271. Fedeyko, J. M.; Vlachos, D. G.; Lobo, R. F. "Formation and structure of self-assembled silica nanoparticles in basic solutions of organic and inorganic cations." Langmuir 2005, 21, 5197. Rimer, J. D.; Vlachos, D.; Lobo, R. F. "Evolution of Self-Assembled Silica-Tetrapropylammonium Nanoparticles at High Temperatures." J. Phys. Chem. B. 2005, 109, 12762. Rimer, J. D.; Vlachos, D. G.; Lobo, R. F. "Physical Basis for the Formation and Stability of Silica Nanoparticles in Basic Solutions of Monovalent Cations." Langmuir 2005, in press. Small angle x-ray scattering data on a absolute scale indicating the growth in size of silica nanoparticles with reaction time in solution. The inset is the average radius of the particles calculated from the scattering curves.

  2. IMR: Acquisition of a Small-Angle X-Ray Scattering Camera for Research and Education Darrin J. Pochan, University of DelawareDMR-0414935 Education Under this grant, more than 10 graudate students from the college of engineering from several coPI laboratories (Pochan, Lobo, and Kaler groups) have been able to perform small-angle x-ray scattering experiments as part of their respective PhD research. In addition, the instrument is being used in a module of the Materials Science and Engineering core curriculum course MSEG602 Structure of Materials. New students in the MSEG department learn small-angle x-ray scattering as part of their first year core curriculum and perform experiments on the SAXSess instrument during the laboratory portion of the class. • Outreach • To this point, 4 peer-reviewed publications have been published to disseminate the results from this research and provide an educational tool for the students involved. Several more papers are in preparation. In addition, the data has been used in more than 10 student presentations at national and international scientific meetings.

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