Synthesis of organosilicon sol-gel matrices and preparation of heterogeneous biocatalysts based on them

Synthesis of organosilicon sol-gel matrices and preparation of heterogeneous biocatalysts based... Hybrid organosilicon structures prepared by the sol-gel method from tetraethoxysilane, methyltriethoxysilane, and polyethylene glycol 3000 under the conditions of base catalysis were used as a matrix for immobilization of whole cells of methylotrophic yeast for developing heterogeneous biocatalysts. The influence of the precursor ratio on the time of formation of the organosilicon sol-gel structure under the conditions of base catalysis was examined. According to the IR data, the structure obtained with 50 vol % methyltriethoxysilane has the highest content of Si-O-Si bonds. Examination by scanning electron microscopy showed that microorganism cells under these conditions are centers of formation of the sol-gel structure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Synthesis of organosilicon sol-gel matrices and preparation of heterogeneous biocatalysts based on them

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427214060160
Publisher site
See Article on Publisher Site

Abstract

Hybrid organosilicon structures prepared by the sol-gel method from tetraethoxysilane, methyltriethoxysilane, and polyethylene glycol 3000 under the conditions of base catalysis were used as a matrix for immobilization of whole cells of methylotrophic yeast for developing heterogeneous biocatalysts. The influence of the precursor ratio on the time of formation of the organosilicon sol-gel structure under the conditions of base catalysis was examined. According to the IR data, the structure obtained with 50 vol % methyltriethoxysilane has the highest content of Si-O-Si bonds. Examination by scanning electron microscopy showed that microorganism cells under these conditions are centers of formation of the sol-gel structure.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Sep 13, 2014

References

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