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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la9044489
|2 doi
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|a pubmed24n0651.xml
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|a (NLM)20180584
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhao, Wenting
|e verfasserin
|4 aut
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| 245 |
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|a Nucleotide-mediated size fractionation of gold nanoparticles in aqueous solutions
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 17.08.2010
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a It is well-known that the applications of nanoparticles are highly dependent on their size-related physical and chemical properties. Size fractionation, therefore, is important for the successful application of nanoparticles. In this study, we present a method for the size fractionation of gold nanoparticles (Au-nps) in aqueous solution, which combines the nucleotide-mediated stabilization and the size-dependent salt-induced aggregation of nanoparticles. With a coating layer of nucleotide, Au-nps undergo reversible salt-induced aggregation in aqueous solutions where the critical salt concentration (CSC) for the transition of monodispersed Au-nps to aggregated form is dependent on the size of nanoparticles; i.e., the smaller the particle, the higher is the CSC. Successful fractionations of a solution containing Au-nps of different sizes (10, 20, and 40 nm) were demonstrated with final purity of each fraction higher than 90%. Taking advantages of the rapidness of the nucleotide-mediated stabilization of Au-nps, the whole fractionation process can be completed within 1 h
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Nucleotides
|2 NLM
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|a Solutions
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|a Water
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|a 059QF0KO0R
|2 NLM
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|a Gold
|2 NLM
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|a 7440-57-5
|2 NLM
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1 |
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|a Lin, Li
|e verfasserin
|4 aut
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|a Hsing, I-Ming
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 10 vom: 18. Mai, Seite 7405-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:26
|g year:2010
|g number:10
|g day:18
|g month:05
|g pages:7405-9
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|u http://dx.doi.org/10.1021/la9044489
|3 Volltext
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