Polymer-induced recovery of nanoparticles from microemulsions |
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Authors: | Myakonkaya Olesya Eastoe Julian Mutch Kevin J Grillo Isabelle |
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Institution: | School of Chemistry, University of Bristol, Bristol BS8 1TS, UK. |
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Abstract: | A new isothermal approach to the recovery of inorganic nanoparticles (NPs) is demonstrated. The NPs can be incorporated into a background microemulsion (ME) supporting fluid, and they can be recovered by addition of non-adsorbing polymer. A clean liquid-liquid (L-L) phase transition can be readily induced by addition of polymer to the MEs. Furthermore, the L-L transitions are also observed in the presence of added NPs, but now the nanoparticles concentrate in the lower co-existing ME phases. Once recovered, the NPs can be redispersed by adding extra ME as a solvent. |
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