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Cryogelation of Chitosan Using Noble-Metal Ions: In Situ Formation of Nanoparticles.

Berillo, Dmitry LU ; Mattiasson, Bo LU and Kirsebom, Harald LU (2014) In Biomacromolecules 15(6). p.2246-2255
Abstract
One of the purposes of the project was to develop the method of preparation of 3D macroporous hydrogel with a structure of interconnected pores by the use of noncovalent interactions. The combination of chitosan and noble-metal complexes was investigated as cross-linking agents for the preparation of ionic cryogels (ICs). Furthermore, the treatment of the ICs containing gold complex by glutaraldehyde results in spontaneous formation of gold nanoparticles (AuNPs) and chemical cross-linking of the cryogel. The characterization of prepared macroporous materials was carried out by the use of FTIR, SEM, TEM techniques, and texture analyzer. A new strategy for control of size distribution of AuNPs was suggested. The size distribution of obtained... (More)
One of the purposes of the project was to develop the method of preparation of 3D macroporous hydrogel with a structure of interconnected pores by the use of noncovalent interactions. The combination of chitosan and noble-metal complexes was investigated as cross-linking agents for the preparation of ionic cryogels (ICs). Furthermore, the treatment of the ICs containing gold complex by glutaraldehyde results in spontaneous formation of gold nanoparticles (AuNPs) and chemical cross-linking of the cryogel. The characterization of prepared macroporous materials was carried out by the use of FTIR, SEM, TEM techniques, and texture analyzer. A new strategy for control of size distribution of AuNPs was suggested. The size distribution of obtained AuNPs and their population inside of walls of cryogels was estimated. A method for quantifying unreacted chloroauric acid in the presence of acetic acid was proposed. The possibility of use of prepared cryogels with immobilized AuNPs as a catalytic flow through reactor is shown. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biomacromolecules
volume
15
issue
6
pages
2246 - 2255
publisher
The American Chemical Society
external identifiers
  • pmid:24814024
  • wos:000337497100032
  • scopus:84902168580
ISSN
1526-4602
DOI
10.1021/bm5003834
language
English
LU publication?
yes
id
0736f5d5-50a4-45b3-909b-e07a85a29531 (old id 4455539)
date added to LUP
2014-06-18 14:56:59
date last changed
2017-01-22 03:14:51
@article{0736f5d5-50a4-45b3-909b-e07a85a29531,
  abstract     = {One of the purposes of the project was to develop the method of preparation of 3D macroporous hydrogel with a structure of interconnected pores by the use of noncovalent interactions. The combination of chitosan and noble-metal complexes was investigated as cross-linking agents for the preparation of ionic cryogels (ICs). Furthermore, the treatment of the ICs containing gold complex by glutaraldehyde results in spontaneous formation of gold nanoparticles (AuNPs) and chemical cross-linking of the cryogel. The characterization of prepared macroporous materials was carried out by the use of FTIR, SEM, TEM techniques, and texture analyzer. A new strategy for control of size distribution of AuNPs was suggested. The size distribution of obtained AuNPs and their population inside of walls of cryogels was estimated. A method for quantifying unreacted chloroauric acid in the presence of acetic acid was proposed. The possibility of use of prepared cryogels with immobilized AuNPs as a catalytic flow through reactor is shown.},
  author       = {Berillo, Dmitry and Mattiasson, Bo and Kirsebom, Harald},
  issn         = {1526-4602},
  language     = {eng},
  number       = {6},
  pages        = {2246--2255},
  publisher    = {The American Chemical Society},
  series       = {Biomacromolecules},
  title        = {Cryogelation of Chitosan Using Noble-Metal Ions: In Situ Formation of Nanoparticles.},
  url          = {http://dx.doi.org/10.1021/bm5003834},
  volume       = {15},
  year         = {2014},
}