한빛사논문
Abstract
Young In Yang1,‡, Eunhye Jeong2,‡, Dr. Inhee Choi1, Suseung Lee1, Hyeon Don Song1, Kihoon Kim2, Prof. Yeonho Choi3, Prof. Taewook Kang2, Prof. Jongheop Yi1
1World Class University Program of Chemical Convergence for Energy & Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-744 (Republic of Korea)
2Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 121-742 (Republic of Korea)
3Department of Biomedical Engineering, Korea University, Seoul, 136-703 (Republic of Korea)
Email: Prof. Yeonho Choi, Prof. Taewook Kang, Prof. Jongheop Yi
†This work was supported by a grant No. 101-082-032 from the Ministry of Environment, Korea, WCU (World Class University) program through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology (R31-10013), and a grant (code No. 2010K000352) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Education, Science and Technology, Korea. It was also supported by the Sogang University research grant, the Korea Research Foundation Grant funded by the Korea Government (MOEHRD, Basic Research Promotion Fund) (KRF-2008-331-D00134). Y.C. also acknowledges financial support from the Basic Science Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology (Grant No. 2010-0022077), Korea University (Grant No. K1000681).
‡These authors contributed equally to the work.
A closer look: The growth mechanism of nanoparticles is difficult to elucidate by common UV/Vis and TEM methods, owing to ensemble averaging and 2D projection effects. Single-particle scattering spectra were now used to investigate the overgrowth of gold on gold/polystyrene nanoparticles. Three patterns are readily differentiated, and corresponding overgrowth mechanisms are proposed.
Keywords:dark-field microscopy;nanoparticles;organic-inorganic hybrid composites;overgrowth;real-time monitoring
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