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Materials 2018, 11(11), 2144; https://doi.org/10.3390/ma11112144

Review on the Production of Polysaccharide Aerogel Particles

1
German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany
2
MINES Paris Tech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France
3
Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
*
Author to whom correspondence should be addressed.
Received: 7 September 2018 / Revised: 10 October 2018 / Accepted: 23 October 2018 / Published: 31 October 2018
(This article belongs to the Special Issue Aerogels: Synthesis, Characterization and Application)
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Abstract

A detailed study of the production of polysaccharide aerogel (bio-aerogel) particles from lab to pilot scale is surveyed in this article. An introduction to various droplets techniques available in the market is given and compared with the lab scale production of droplets using pipettes and syringes. An overview of the mechanisms of gelation of polysaccharide solutions together with non-solvent induced phase separation option is then discussed in the view of making wet particles. The main steps of particle recovery and solvent exchange are briefly described in order to pass through the final drying process. Various drying processes are overviewed and the importance of supercritical drying is highlighted. In addition, we present the characterization techniques to analyse the morphology and properties of the aerogels. The case studies of bio-aerogel (agar, alginate, cellulose, chitin, κ-carrageenan, pectin and starch) particles are reviewed. Potential applications of polysaccharide aerogel particles are briefly given. Finally, the conclusions summarize the prospects of the potential scale-up methods for producing bio-aerogel particles. View Full-Text
Keywords: polysaccharide; droplets; particles; gel; drying; aerogel; mesoporous polysaccharide; droplets; particles; gel; drying; aerogel; mesoporous
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Ganesan, K.; Budtova, T.; Ratke, L.; Gurikov, P.; Baudron, V.; Preibisch, I.; Niemeyer, P.; Smirnova, I.; Milow, B. Review on the Production of Polysaccharide Aerogel Particles. Materials 2018, 11, 2144.

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