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Electrochemical Evaluation of Protective Properties of One-component SiO2 and TiO2 Coatings Obtained by the Sol-gel Method
E. Szałkowska1, J. Masalski2, J. Głuszek2
1Department of Chemistry, Częstochowa University of Technology, Częstochowa, Poland
2Institute of Inorganic Technology and Mineral Fertilizers, Wrocław University of Technology, Wrocław, Poland
CeMn/AlSiO Ceramic Layers on Metallic Supports for High-temperature Catalytic Processes
W. Tylus
Institute of Inorganic Technology and Mineral Fertilizers, Wrocław University of Technology, Wrocław, Poland
The Effect of Sequence of Sol-gel Multilayer Coatings Deposition on Corrosion Behaviour of Stainless Steel 316L
J.G. Chęcmanowski, J. Głuszek, J. Masalski
Institute of Inorganic Technology and Mineral Fertilizers, Wrocław University of Technology, Wrocław, Poland
Behaviour of Glucose Oxidase During Formation and Ageing of Silica Gel Studied by Fluorescence Spectroscopy
M. Przybyt
Institute of General Food Chemistry, Department of Biochemistry and Food Science, Technical University of Łódź, Łodź, Poland
Potentiometric Tungsten Electrodes with Enzymes Immobilised by the Sol-gel Technique
M. Przybyt
Institute of General Food Chemistry, Department of Biochemistry and Food Science, Technical University of Łódź, Łódź, Poland
Application of The Sol-gel Method to the Synthesis of Ferroelectric Nanopowders (Pb1-xLax)(Zr0.65Ti0.35)1-0.25xO3, 0.06=< x =<0.1
M. Płońska, D. Czekaj, Z. Surowiak
University of Silesia, Faculty of Engineering, Department of Materials Science, Sosnowiec, Poland
Application of the Sol-gel Method to Deposition of Thin Films
A. Zarycka, J. Ilczuk, D. Czekaj
University of Silesia, Faculty of Engineering, Department of Materials Science, Sosnowiec, Poland
Crystallization of TiC and TiN from a Colloidal System
A. Biedunkiewicz
Institute of Materials Engineering, Technical University of Szczecin, Szczecin, Poland
Silicate Solvated by an Organic Solvent as Electrolyte or Electrode Material
M. Opallo
Institute of Physical Chemistry, Polish Academy of Sciences, Warszawa, Poland
Synthesis of Nanosilica by the Sol-gel Method and Its Activity Toward Polymers
J. Chruściel, L. Ślusarski
Institute of Polymers, Technical University of Łódz, Łódz, Poland
Microstructure and Optical Properties of Methylmethacrylate-modified Silica Hybrid Glasses and Thin Films
M. Nocuń1, E. Leja2, W. Bugajski1
1AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Kraków, Poland
2AGH University of Science and Technology, Faculty of Electrical Engineering, Automatics, Computer Science and Electronics, Kraków, Poland
Rheology of Silica Suspensions Stabilized by Ethylenediamine
V.E. Gaishun1, Y.A. Potapenok1, O.I. Tulenkowa1, S.V. Pakhovtchyshin2, W. Stręk3
1Francisk Skorina Gomel State University, Gomel, Belarus
2Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
3Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Wrocław, Poland
EPR Studies of Defects in Pure Sol-gel Matrices and Their Influence on Cytotoxicity of the Material
A. Ulatowska-Jarża1, M. Komorowska2, H. Podbielska2
1Bio-Optics Group, Institute of Physics, Wrocław University of Technology, Wrocław, Poland
2Biophysics Group, Institute of Physics, Wrocław University of Technology, Wrocław, Poland
Abstract
Sol-gel based biomaterials may be used for various applications, including biomedical ones. In this respect it is important to investigate the influence of sol-gel matrices on biological systems in order to establish their cytotoxic activity. The results of EPR studies of sol-gels are described in this work. They demonstrate that various defects are present in sol-gel matrices: surface defects, peroxy- centres or hydrogen- related centres. These defects arise spontaneously during the gelation, being responsible for cytotoxicity of sol-gels. It was found that the ratio of the number of solvent moles to the number of precursor moles (the molar ratio R) is one of the factors determining the level of cytotoxicity. More defects were present in samples prepared with a lower molar ratio R. A higher concentration of defects was detected in freshly prepared samples, as compared to samples aged for a longer time.
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Download article (PDF)Silica Gel Glasses After Laser Irradiation
S.V. Shalupaev, A.V. Semchenko, Y.V. Nikityuk
Gomel State University, Gomel, Belarus
