Publication Date:
2014-08-26
Description:
Structure determination of gold nanoparticles (AuNPs) is necessary for understanding their physical and chemical properties, but only one AuNP larger than 1 nanometer in diameter [a 102-gold atom NP (Au102NP)] has been solved to atomic resolution. Whereas the Au102NP structure was determined by x-ray crystallography, other large AuNPs have proved refractory to this approach. Here, we report the structure determination of a Au68NP at atomic resolution by aberration-corrected transmission electron microscopy, performed with the use of a minimal electron dose, an approach that should prove applicable to metal NPs in general. The structure of the Au68NP was supported by small-angle x-ray scattering and by comparison of observed infrared absorption spectra with calculations by density functional theory.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315941/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315941/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Azubel, Maia -- Koivisto, Jaakko -- Malola, Sami -- Bushnell, David -- Hura, Greg L -- Koh, Ai Leen -- Tsunoyama, Hironori -- Tsukuda, Tatsuya -- Pettersson, Mika -- Hakkinen, Hannu -- Kornberg, Roger D -- AI-21144/AI/NIAID NIH HHS/ -- R01 AI021144/AI/NIAID NIH HHS/ -- R01 GM036659/GM/NIGMS NIH HHS/ -- R01 GM049985/GM/NIGMS NIH HHS/ -- R01 GM105404/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2014 Aug 22;345(6199):909-12. doi: 10.1126/science.1251959.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Department of Chemistry, Nanoscience Center, University of Jyvaskyla, FI-40014 Jyvaskyla, Finland. ; Department of Physics, Nanoscience Center, University of Jyvaskyla, FI-40014 Jyvaskyla, Finland. ; Physical Bioscience Division, Lawrence Berkeley National Lab, Berkeley, CA 94720, USA. ; Stanford Nanocharacterization Laboratory, Stanford University, Stanford, CA 94305, USA. ; Catalysis Research Center, Hokkaido University, Sapporo, Japan. ; Department of Chemistry, Nanoscience Center, University of Jyvaskyla, FI-40014 Jyvaskyla, Finland. Department of Physics, Nanoscience Center, University of Jyvaskyla, FI-40014 Jyvaskyla, Finland. ; Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. kornberg@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25146285" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
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Medicine
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Natural Sciences in General
,
Physics
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