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dc.contributor.authorLeng, Weinanen_US
dc.contributor.authorPati, Paramjeeten_US
dc.contributor.authorVikesland, Peter J.en_US
dc.identifier.citationLeng, W., Pati, P., & Vikesland, P. J. (2015). Room temperature seed mediated growth of gold nanoparticles: mechanistic investigations and life cycle assesment. Environmental Science: Nano, 2(5), 440-453. doi:10.1039/C5EN00026Ben_US
dc.description.abstractIn this study, we report the first room temperature seed-mediated synthesis of gold nanoparticles (AuNPs) in the presence of citrate and a gold salt. In contrast to citrate-reduction in boiling water, these mild reaction conditions provide expanded capacity to probe the mechanism of seed-mediated growth following gold salt addition. Moreover, comparative life cycle assessment indicates significant reductions in the environmental impacts for the room temperature synthesis. For this study, highly uniform gold seeds with Z-average diameter of 17.7 +/- 0.8 nm and a polydispersity index of 0.03 +/- 0.01 were prepared by a pH controlled protocol. We investigated the AuNP growth mechanism via time resolved UV-vis spectroscopy, dynamic light scattering, and transmission electron microscopy. This study indicates that citrate and its oxidation byproduct acetone dicarboxylate serve to bridge and gather Au(iii) ions around gold nanoparticle seeds in the initial growth step.en_US
dc.description.sponsorshipVirginia Tech. Graduate School. Sustainable Nanotechnology Interdisciplinary Graduate Education Program (VTSuN IGEP)en_US
dc.description.sponsorshipVirginia Tech. Institute for Critical Technology and Applied Scienceen_US
dc.description.sponsorshipNational Science Foundation (U.S.)en_US
dc.format.extent15 p.en_US
dc.publisherThe Royal Society of Chemistryen_US
dc.rightsAttribution-NonCommercial 3.0 Unported*
dc.titleRoom temperature seed mediated growth of gold nanoparticles: mechanistic investigations and life cycle assesmenten_US
dc.typeArticle - Refereeden_US
dc.contributor.departmentVirginia Tech. Charles E. Via, Jr. Department of Civil and Environmental Engineeringen_US
dc.description.notesContains supplementary information fileen_US
dc.description.notes2015 Royal Society of Chemistry Open Access Gold Articleen_US
dc.title.serialEnvironmental Science: Nanoen_US

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