Macroporous gels prepared at subzero temperatures as novel materials for chromatography of particulate-containing fluids and cell culture applications
(2007) In Journal of Separation Science 30(11). p.1657-1671- Abstract
- Macroporous gels (MGs) with a broad variety of morphologies are prepared using the cryotropic gelation technique, i.e. gelation at subzero temperatures. These highly elastic hydrophilic materials can be produced from practically any gel-forming system with a broad range of porosity extending from elastic and porous gels with pore sizes up to 1.0 mu m to elastic and sponge-like gels with pore sizes up to 100 mu m. The versatility of the cryogelation technique is demonstrated by use of different chemical reactions (hydrogen bond formation, chemical cross-linking of polymers, free radical polymerization) mainly in an aqueous medium. Appropriate control over solvent crystallization (formation of solvent crystals) and rate of chemical reaction... (More)
- Macroporous gels (MGs) with a broad variety of morphologies are prepared using the cryotropic gelation technique, i.e. gelation at subzero temperatures. These highly elastic hydrophilic materials can be produced from practically any gel-forming system with a broad range of porosity extending from elastic and porous gels with pore sizes up to 1.0 mu m to elastic and sponge-like gels with pore sizes up to 100 mu m. The versatility of the cryogelation technique is demonstrated by use of different chemical reactions (hydrogen bond formation, chemical cross-linking of polymers, free radical polymerization) mainly in an aqueous medium. Appropriate control over solvent crystallization (formation of solvent crystals) and rate of chemical reaction during the cryogelation allows the reproducible preparation of cryogels with tailored properties. Different approaches, such as chemical modification of reactive groups, grafting of the pore surface with an appropriate polymer, or direct copolymerization with functional monomers are used for control of the surface chemistry of MGs. Typically, MGs with pore sizes up to 1.0 mu m are produced in the shape of beads and MGs with pore size up to 100 mu m are prepared as monoliths, discs, and sheets. The difference in porous structure of MGs defines the main applications of these porous materials. Elastic beaded MGs are mostly used as carriers for. cell and enzyme immobilization or for capture of low-molecular weight targets from particulate-containing fluids in expanded-bed mode. However, the elastic and sponge-like MG monoliths with interconnected pores measuring hundreds of gm have been successfully used as monolithic columns for chromatography of particulate-containing fluids (crude cell homogenates, viruses, whole cells, wastewater effluents) and as three-dimensional scaffolds for mammalian cell culture applications. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/647675
- author
- Plieva, Fatima LU ; Galaev, Igor LU and Mattiasson, Bo LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cryogel, 3-D scaffold, cell chromatography, macroporous gel, monolith
- in
- Journal of Separation Science
- volume
- 30
- issue
- 11
- pages
- 1657 - 1671
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000248361100006
- scopus:34547598638
- ISSN
- 1615-9314
- DOI
- 10.1002/jssc.200700127
- language
- English
- LU publication?
- yes
- id
- d791744d-242a-476e-8067-b3a65b615ae4 (old id 647675)
- date added to LUP
- 2016-04-01 12:30:00
- date last changed
- 2022-04-05 23:05:55
@article{d791744d-242a-476e-8067-b3a65b615ae4,
abstract = {{Macroporous gels (MGs) with a broad variety of morphologies are prepared using the cryotropic gelation technique, i.e. gelation at subzero temperatures. These highly elastic hydrophilic materials can be produced from practically any gel-forming system with a broad range of porosity extending from elastic and porous gels with pore sizes up to 1.0 mu m to elastic and sponge-like gels with pore sizes up to 100 mu m. The versatility of the cryogelation technique is demonstrated by use of different chemical reactions (hydrogen bond formation, chemical cross-linking of polymers, free radical polymerization) mainly in an aqueous medium. Appropriate control over solvent crystallization (formation of solvent crystals) and rate of chemical reaction during the cryogelation allows the reproducible preparation of cryogels with tailored properties. Different approaches, such as chemical modification of reactive groups, grafting of the pore surface with an appropriate polymer, or direct copolymerization with functional monomers are used for control of the surface chemistry of MGs. Typically, MGs with pore sizes up to 1.0 mu m are produced in the shape of beads and MGs with pore size up to 100 mu m are prepared as monoliths, discs, and sheets. The difference in porous structure of MGs defines the main applications of these porous materials. Elastic beaded MGs are mostly used as carriers for. cell and enzyme immobilization or for capture of low-molecular weight targets from particulate-containing fluids in expanded-bed mode. However, the elastic and sponge-like MG monoliths with interconnected pores measuring hundreds of gm have been successfully used as monolithic columns for chromatography of particulate-containing fluids (crude cell homogenates, viruses, whole cells, wastewater effluents) and as three-dimensional scaffolds for mammalian cell culture applications.}},
author = {{Plieva, Fatima and Galaev, Igor and Mattiasson, Bo}},
issn = {{1615-9314}},
keywords = {{cryogel; 3-D scaffold; cell chromatography; macroporous gel; monolith}},
language = {{eng}},
number = {{11}},
pages = {{1657--1671}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Separation Science}},
title = {{Macroporous gels prepared at subzero temperatures as novel materials for chromatography of particulate-containing fluids and cell culture applications}},
url = {{http://dx.doi.org/10.1002/jssc.200700127}},
doi = {{10.1002/jssc.200700127}},
volume = {{30}},
year = {{2007}},
}