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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b02699
|2 doi
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|a pubmed24n0966.xml
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|a eng
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|a Shimpi, Jayesh R
|e verfasserin
|4 aut
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|a Ligand-Solvent Compatibility
|b The Unsung Hero in the Digestive Ripening Story
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|c 2018
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 15.01.2019
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|a Date Revised 15.01.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Digestive ripening (DR) is a process where a polydisperse nanocrystal (NC) system is converted into a monodisperse one with the aid of thermal heating of NCs in the presence of an excess surface-active organic ligand called digestive ripening agent (DRA) and a solvent. Here, we demonstrate that the solvent-DRA compatibility influences the final size and size distribution of the NCs in a significant manner. Accordingly, in this study, using the DR of gold NCs as the test case with alkanethiol (decanethiol/C10HT) and fluorinated thiol (1 H,1 H,2 H,2 H-perfluorodecanethiol/C10FT) as DRA's and toluene and α,α,α-trifluoro-toluene (TFT) and their combination as solvents, we clearly establish that alkanethiols result in best-quality NCs after DR in toluene while the fluorinated thiols provide reasonably monodispersed NCs in TFT. Our results also ascertain that even when DR is carried out in a mixture of solvents, as long as the compatible solvent is the major component, the DR process results in reasonably monodisperse NCs. As soon as the amount of uncompatible solvent exceeds a threshold limit, there is perceptible increase in the polydispersity of the NCs. We conclude that the polarity of the solvent, which affects the buildup of ligated atoms/clusters, plays a key role in controlling the size distributions of the NCs
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Chaudhari, Vijay Raman
|e verfasserin
|4 aut
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|a Prasad, Bhagavatula L V
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 34(2018), 45 vom: 13. Nov., Seite 13680-13689
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:34
|g year:2018
|g number:45
|g day:13
|g month:11
|g pages:13680-13689
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|u http://dx.doi.org/10.1021/acs.langmuir.8b02699
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