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Composite particles formed by complexation of poly(methacrylic acid) - stabilized magnetic fluid with chitosan: Magnetic material for bioapplications

I. Safarik, M. Stepanek, M. Uchman, M. Slouf, E. Baldikova, L. Nydlova, K. Pospiskova, M. Safarikova,

. 2016 ; 67 (-) : 486-92. [pub] 20160507

Language English Country Netherlands

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc17023920

A simple procedure for the synthesis of magnetic fluid (ferrofluid) stabilized by poly(methacrylic acid) has been developed. This ferrofluid was used to prepare a novel type of magnetically responsive chitosan-based composite material. Both ferrofluid and magnetic chitosan composite were characterized by a combination of microscopy (optical microscopy, TEM, SEM), scattering (static and dynamic light scattering, SANS) and spectroscopy (FTIR) techniques. Magnetic chitosan was found to be a perspective material for various bioapplications, especially as a magnetic carrier for immobilization of enzymes and cells. Lipase from Candida rugosa was covalently attached after cross-linking and activation of chitosan using glutaraldehyde. Baker's yeast cells (Saccharomyces cerevisiae) were incorporated into the chitosan composite during its preparation; both biocatalysts were active after reaction with appropriate substrates.

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$a Safarik, Ivo $u Department of Nanobiotechnology, Biology Centre, ISB, Czech Academy of Sciences, Na Sadkach 7, 37005 Ceske Budejovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic; Global Change Research Institute, Czech Academy of Sciences, Na Sadkach 7, 37005 Ceske Budejovice, Czech Republic.
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$a A simple procedure for the synthesis of magnetic fluid (ferrofluid) stabilized by poly(methacrylic acid) has been developed. This ferrofluid was used to prepare a novel type of magnetically responsive chitosan-based composite material. Both ferrofluid and magnetic chitosan composite were characterized by a combination of microscopy (optical microscopy, TEM, SEM), scattering (static and dynamic light scattering, SANS) and spectroscopy (FTIR) techniques. Magnetic chitosan was found to be a perspective material for various bioapplications, especially as a magnetic carrier for immobilization of enzymes and cells. Lipase from Candida rugosa was covalently attached after cross-linking and activation of chitosan using glutaraldehyde. Baker's yeast cells (Saccharomyces cerevisiae) were incorporated into the chitosan composite during its preparation; both biocatalysts were active after reaction with appropriate substrates.
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$a Stepanek, Miroslav $u Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 12840 Prague 2, Czech Republic.
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$a Uchman, Mariusz $u Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 12840 Prague 2, Czech Republic.
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$a Slouf, Miroslav $u Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 16206 Prague 6, Czech Republic.
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$a Baldikova, Eva $u Global Change Research Institute, Czech Academy of Sciences, Na Sadkach 7, 37005 Ceske Budejovice, Czech Republic; Department of Applied Chemistry, Faculty of Agriculture, University of South Bohemia, Branisovska 1457, 37005 Ceske Budejovice, Czech Republic.
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$a Nydlova, Leona $u Global Change Research Institute, Czech Academy of Sciences, Na Sadkach 7, 37005 Ceske Budejovice, Czech Republic.
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$a Pospiskova, Kristyna $u Regional Centre of Advanced Technologies and Materials, Palacky University, Slechtitelu 27, 78371 Olomouc, Czech Republic.
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$a Safarikova, Mirka $u Department of Nanobiotechnology, Biology Centre, ISB, Czech Academy of Sciences, Na Sadkach 7, 37005 Ceske Budejovice, Czech Republic; Global Change Research Institute, Czech Academy of Sciences, Na Sadkach 7, 37005 Ceske Budejovice, Czech Republic.
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