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Macroporous gel particles as novel sorbent materials: Rational design

Plieva, Fatima LU and Mattiasson, Bo LU (2008) In Industrial & Engineering Chemistry Research 47(12). p.4131-4141
Abstract
A novel design approach to form macroporous gels is presented. Macroporous gels (MGs), known as cryogels(or gels prepared at subzero temperatures), were prepared inside a protective plastic core (so-called, housing), thus making them resistant to shear forces at stirring. MGs are highly elastic polymeric materials with pore sizes up to 100 mu m and spongelike morphology. Design of MGs inside a protective plastic core (defined as macroporous gel particles, MGPs) allows for expanding the potential applications of such polymeric materials, even to processes in well-stirred bioreactors. MGPs are resistant to attrition caused by continuous stirring, at 400 rpm, while the MGs (prepared under the same conditions) were completely crushed within... (More)
A novel design approach to form macroporous gels is presented. Macroporous gels (MGs), known as cryogels(or gels prepared at subzero temperatures), were prepared inside a protective plastic core (so-called, housing), thus making them resistant to shear forces at stirring. MGs are highly elastic polymeric materials with pore sizes up to 100 mu m and spongelike morphology. Design of MGs inside a protective plastic core (defined as macroporous gel particles, MGPs) allows for expanding the potential applications of such polymeric materials, even to processes in well-stirred bioreactors. MGPs are resistant to attrition caused by continuous stirring, at 400 rpm, while the MGs (prepared under the same conditions) were completely crushed within 1-2 h of stirring. MGPs with a different functionality were prepared and used in the model sorption experiments. Thus, polyacrylamide-based MGPs of different porosities and bearing metal-chelate ligand, iminodiacetate (IDA), were used for capture of Cu(II)-ions at low concentration from water. Because of the large size of interconnected pores in the MGPs, targets of different sizes (low molecular weight targets as Cu(II)-ions and particulate targets as yeast cells) can be captured on the MGPs (bearing specific ligands to the targets) from a complex mixture. The MGPs can be dried, stored in the dried state, and reswollen when required. The open permeable porous structure of MGPs and high stability at stirring together with ease of preparation make the MGPs a very attractive, novel, robust sorbent medium for different biotechnological applications. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Industrial & Engineering Chemistry Research
volume
47
issue
12
pages
4131 - 4141
publisher
The American Chemical Society
external identifiers
  • wos:000256656900014
  • scopus:47249154815
ISSN
0888-5885
DOI
10.1021/ie071406o
language
English
LU publication?
yes
id
95cba26e-5e13-4cdf-9c8e-0e3b4c0f4d76 (old id 1191401)
date added to LUP
2008-09-08 14:53:30
date last changed
2017-01-01 06:36:37
@article{95cba26e-5e13-4cdf-9c8e-0e3b4c0f4d76,
  abstract     = {A novel design approach to form macroporous gels is presented. Macroporous gels (MGs), known as cryogels(or gels prepared at subzero temperatures), were prepared inside a protective plastic core (so-called, housing), thus making them resistant to shear forces at stirring. MGs are highly elastic polymeric materials with pore sizes up to 100 mu m and spongelike morphology. Design of MGs inside a protective plastic core (defined as macroporous gel particles, MGPs) allows for expanding the potential applications of such polymeric materials, even to processes in well-stirred bioreactors. MGPs are resistant to attrition caused by continuous stirring, at 400 rpm, while the MGs (prepared under the same conditions) were completely crushed within 1-2 h of stirring. MGPs with a different functionality were prepared and used in the model sorption experiments. Thus, polyacrylamide-based MGPs of different porosities and bearing metal-chelate ligand, iminodiacetate (IDA), were used for capture of Cu(II)-ions at low concentration from water. Because of the large size of interconnected pores in the MGPs, targets of different sizes (low molecular weight targets as Cu(II)-ions and particulate targets as yeast cells) can be captured on the MGPs (bearing specific ligands to the targets) from a complex mixture. The MGPs can be dried, stored in the dried state, and reswollen when required. The open permeable porous structure of MGPs and high stability at stirring together with ease of preparation make the MGPs a very attractive, novel, robust sorbent medium for different biotechnological applications.},
  author       = {Plieva, Fatima and Mattiasson, Bo},
  issn         = {0888-5885},
  language     = {eng},
  number       = {12},
  pages        = {4131--4141},
  publisher    = {The American Chemical Society},
  series       = {Industrial & Engineering Chemistry Research},
  title        = {Macroporous gel particles as novel sorbent materials: Rational design},
  url          = {http://dx.doi.org/10.1021/ie071406o},
  volume       = {47},
  year         = {2008},
}