Journal
EUROPEAN POLYMER JOURNAL
Volume 77, Issue -, Pages 155-163Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2016.01.044
Keywords
Colloidosomes; Gold shell; Silver shell; Encapsulated material
Categories
Funding
- China Scholarship Council (CSC Scholarship)
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Colloidosomes can be used in a wide variety of industries, such as food, bioreactors and medicine. We report for the first time, aqueous core colloidosomes with a gold or silver shell. The diameter of the water core is between 0.7 mu m and 2 mu m. The formation of gold coated colloidosomes was achieved by using sodium citrate (Na(3)Citrate) in the core and gold chloride (HAuCl4) in the wash solution. The gold shell colloidosomes are covered with spherical gold particles. Silver coated colloidosomes can be prepared by using L-Ascorbic acid in the core and silver nitrate (AgNO3) in the wash solution. Various processing parameters result in different shell morphologies. The silver shell can seal the core of the micro capsule, and the encapsulated material can be released by the addition of nitric acid. (C) 2016 Elsevier Ltd. All rights reserved.
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