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Ganesan, Kathirvel and Ratke, Lorenz (2013) Aerogels of polysaccharides as bio-based templates. Euro BIOMAT, 23.-24.04.2013, Weimar Germany.
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Abstract
Aerogels of polysaccharides can be used as bio-based template materials for many applications including separation techniques, catalysis, tissue engineering and drug delivery vehicles because of their abundance in renewable natural source, ease of production, bio-compatibility and biodegradability [1-3]. Aerogels of polysaccharides such as cellulose and carrageenan were successfully synthesized in three consecutive steps: a) preparation of hydrogels; b) solvent exchange; and c) drying the organogels under supercritical condition (supercritical fluid is carbon dioxide). Their properties were investigated by envelope density analyzer, scanning electron microscopy and nitrogen adsorption-desorption analysis. The density of carrageenan aerogel was about two times higher than cellulose aerogel because of the difference in shrinkage behavior of polysaccharides under supercritical condition. The macro- and mesoporous fibrillar structure was observed with a fibre thickness of about 10-20 nm. The specific surface area of aerogels showed almost constant value for cellulose and carrageenan. These aerogels were used as bio-based template to prepare composite materials.
| Item URL in elib: | https://elib.dlr.de/85231/ | |||||||||
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| Document Type: | Conference or Workshop Item (Poster) | |||||||||
| Title: | Aerogels of polysaccharides as bio-based templates | |||||||||
| Authors: |
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| Date: | 2013 | |||||||||
| Refereed publication: | No | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Status: | Published | |||||||||
| Keywords: | Polysaccharide; Aerogel; Carrageenan; Nano-fibre; Bio-template. | |||||||||
| Event Title: | Euro BIOMAT | |||||||||
| Event Location: | Weimar Germany | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 23.-24.04.2013 | |||||||||
| Organizer: | Prof. Klaus D. Jandt, Friedrich-Schiller-University Jena | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Space | |||||||||
| HGF - Program Themes: | Research under Space Conditions | |||||||||
| DLR - Research area: | Raumfahrt | |||||||||
| DLR - Program: | R FR - Research under Space Conditions | |||||||||
| DLR - Research theme (Project): | R - Vorhaben Materialwissenschaftliche Forschung (old) | |||||||||
| Location: | Köln-Porz | |||||||||
| Institutes and Institutions: | Institute of Materials Physics in Space | |||||||||
| Deposited By: | Ganesan, Dr. Kathirvel | |||||||||
| Deposited On: | 12 Nov 2013 10:18 | |||||||||
| Last Modified: | 14 Jan 2019 07:54 |
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