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Aerogels of polysaccharides as bio-based templates

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/
Document Type:Conference or Workshop Item (Poster)
Title:Aerogels of polysaccharides as bio-based templates
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ganesan, Kathirvelk.ganesan (at) dlr.dehttps://orcid.org/0000-0002-4876-5366
Ratke, Lorenzlorenz.ratke (at) dlr.deUNSPECIFIED
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 - Forschung unter Weltraumbedingungen
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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