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Sci Rep. 2016 Nov 29;6:38016. doi: 10.1038/srep38016.

A Green Route for Substrate-Independent Oil-Repellent Coatings.

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Research Center for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science &Technology Beijing, Beijing 100083, P.R. China.
Key Laboratory of Bio-inspired Materials and Interface Science, CAS Center for Excellence in Nanoscience, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.


Oil repellent surface have lots of practical applications in many fields. Current oil repellent coating may suffer from limited liquid repellency to oils or environmental risks. In this work, we report an eco-friendly 'green' processes for preparing oil-repellent surface using a renewable and environmentally benign bioresource alginate. The oil-repellent coating was prepared by a two-step surface coating technique and showed stable oil repellency to many kinds of oils. The fabrication process was very simple with no need for special equipment, and this approach can be successfully employed to various substrates with different compositions, sizes and shapes, or even substrate-independent oil-repellent materials. The as-prepared coating of calcium alginate may have a good future in packaging oil-containing products and foods.

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