On the Road to Biopolymer Aerogels—Dealing with the Solvent
Aerogels are three-dimensional ultra-light porous structures whose characteristics make them exciting candidates for research, development and commercialization leading to a broad scope of applications ranging from insulation and catalysis to regenerative medicine and pharmaceuticals. Biopolymers ha...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-12-01
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| Series: | Gels |
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| Online Access: | http://www.mdpi.com/2310-2861/1/2/291 |
| _version_ | 1818215180156272640 |
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| author | Raman Subrahmanyam Pavel Gurikov Paul Dieringer Miaotian Sun Irina Smirnova |
| author_facet | Raman Subrahmanyam Pavel Gurikov Paul Dieringer Miaotian Sun Irina Smirnova |
| author_sort | Raman Subrahmanyam |
| collection | DOAJ |
| description | Aerogels are three-dimensional ultra-light porous structures whose characteristics make them exciting candidates for research, development and commercialization leading to a broad scope of applications ranging from insulation and catalysis to regenerative medicine and pharmaceuticals. Biopolymers have recently entered the aerogel foray. In order to fully realize their potential, progressive strategies dealing with production times and costs reduction must be put in place to facilitate the scale up of aerogel production from lab to commercial scale. The necessity of studying solvent/matrix interactions during solvent exchange and supercritical CO2 drying is presented in this study using calcium alginate as a model system. Four frameworks, namely (a) solvent selection methodology based on solvent/polymer interaction; (b) concentration gradient influence during solvent exchange; (c) solvent exchange kinetics based on pseudo second order model; and (d) minimum solvent concentration requirements for supercritical CO2 drying, are suggested that could help assess the role of the solvent in biopolymer aerogel production. |
| first_indexed | 2024-12-12T06:31:58Z |
| format | Article |
| id | doaj.art-8b8ad931b1ef4ae98bbc625524cc1b2a |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-12-12T06:31:58Z |
| publishDate | 2015-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-8b8ad931b1ef4ae98bbc625524cc1b2a2022-12-22T00:34:34ZengMDPI AGGels2310-28612015-12-011229131310.3390/gels1020291gels1020291On the Road to Biopolymer Aerogels—Dealing with the SolventRaman Subrahmanyam0Pavel Gurikov1Paul Dieringer2Miaotian Sun3Irina Smirnova4Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, GermanyInstitute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, GermanyInstitute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, GermanyInstitute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, GermanyInstitute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, GermanyAerogels are three-dimensional ultra-light porous structures whose characteristics make them exciting candidates for research, development and commercialization leading to a broad scope of applications ranging from insulation and catalysis to regenerative medicine and pharmaceuticals. Biopolymers have recently entered the aerogel foray. In order to fully realize their potential, progressive strategies dealing with production times and costs reduction must be put in place to facilitate the scale up of aerogel production from lab to commercial scale. The necessity of studying solvent/matrix interactions during solvent exchange and supercritical CO2 drying is presented in this study using calcium alginate as a model system. Four frameworks, namely (a) solvent selection methodology based on solvent/polymer interaction; (b) concentration gradient influence during solvent exchange; (c) solvent exchange kinetics based on pseudo second order model; and (d) minimum solvent concentration requirements for supercritical CO2 drying, are suggested that could help assess the role of the solvent in biopolymer aerogel production.http://www.mdpi.com/2310-2861/1/2/291hydrogelaerogelalginatebiopolymerssolvent exchangepseudo second order kineticssolubility parametersshrinkagesupercritical drying |
| spellingShingle | Raman Subrahmanyam Pavel Gurikov Paul Dieringer Miaotian Sun Irina Smirnova On the Road to Biopolymer Aerogels—Dealing with the Solvent Gels hydrogel aerogel alginate biopolymers solvent exchange pseudo second order kinetics solubility parameters shrinkage supercritical drying |
| title | On the Road to Biopolymer Aerogels—Dealing with the Solvent |
| title_full | On the Road to Biopolymer Aerogels—Dealing with the Solvent |
| title_fullStr | On the Road to Biopolymer Aerogels—Dealing with the Solvent |
| title_full_unstemmed | On the Road to Biopolymer Aerogels—Dealing with the Solvent |
| title_short | On the Road to Biopolymer Aerogels—Dealing with the Solvent |
| title_sort | on the road to biopolymer aerogels dealing with the solvent |
| topic | hydrogel aerogel alginate biopolymers solvent exchange pseudo second order kinetics solubility parameters shrinkage supercritical drying |
| url | http://www.mdpi.com/2310-2861/1/2/291 |
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