COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE
The objective of the submitted work was to prepare and to characterize two types of silicate coatings prepared by the sol-gel method using the dip-coating technique on a titanium substrate. Efforts have been made to use mechanical properties of bio-inert titanium and bioactive properties of a silica...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2012-12-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: | http://www.ceramics-silikaty.cz/2012/pdf/2012_04_314.pdf |
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| author | DIANA HORKAVCOVÁ TEREZA BĚLOUBKOVÁ ZUZANA MIZEROVÁ LUDVÍK ŠANDA ZUZANA CÍLOVÁ MARKÉTA ČASTORÁLOVÁ ALEŠ HELEBRANT |
| author_facet | DIANA HORKAVCOVÁ TEREZA BĚLOUBKOVÁ ZUZANA MIZEROVÁ LUDVÍK ŠANDA ZUZANA CÍLOVÁ MARKÉTA ČASTORÁLOVÁ ALEŠ HELEBRANT |
| author_sort | DIANA HORKAVCOVÁ |
| collection | DOAJ |
| description | The objective of the submitted work was to prepare and to characterize two types of silicate coatings prepared by the sol-gel method using the dip-coating technique on a titanium substrate. Efforts have been made to use mechanical properties of bio-inert titanium and bioactive properties of a silicate layer enriched with an admixture of compounds identified below. The first group consisted of silicate coatings containing silver, brushite and monetite. The other group of silicate coatings contained calcium nitrate and triethyl phosphate. Mechanically and chemically treated titanium substrates were dipped into sols and dried and fired. Silicate coatings from the first group were also chemically treated in 10 mol.l-1 solution of sodium hydroxide. All coatings were measured to determine their adhesive and bioactive properties and furthermore the antibacterial properties were tested in the case of first group. Surfaces of the coated substrates were investigated after the firing and after the individual tests with optical and electron microscopy and X-ray microdiffraction. A tape test demonstrated excellent adhesive property of all coatings to the substrate, classified with degree 5. A static in vitro test demonstrated bioactivity of nearly all the coatings. The basic silicate coating from the first group and one type of coating from the second group were identified as inert. Antibacterial properties of silicate coatings containing silver showed to be different when tested against Escherichia coli bacteria. A complete inhibition of the growth of bacteria under our experimental conditions was observed for the coating containing silver and monetite and a partial inhibition of the growth of bacteria for coatings containing silver and silver in combination with brushite. |
| first_indexed | 2024-12-24T10:06:11Z |
| format | Article |
| id | doaj.art-077046c2c14b43919b006baf55a6c69f |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-12-24T10:06:11Z |
| publishDate | 2012-12-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-077046c2c14b43919b006baf55a6c69f2022-12-21T17:00:46ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472012-12-01564314322COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATEDIANA HORKAVCOVÁTEREZA BĚLOUBKOVÁZUZANA MIZEROVÁLUDVÍK ŠANDAZUZANA CÍLOVÁMARKÉTA ČASTORÁLOVÁALEŠ HELEBRANTThe objective of the submitted work was to prepare and to characterize two types of silicate coatings prepared by the sol-gel method using the dip-coating technique on a titanium substrate. Efforts have been made to use mechanical properties of bio-inert titanium and bioactive properties of a silicate layer enriched with an admixture of compounds identified below. The first group consisted of silicate coatings containing silver, brushite and monetite. The other group of silicate coatings contained calcium nitrate and triethyl phosphate. Mechanically and chemically treated titanium substrates were dipped into sols and dried and fired. Silicate coatings from the first group were also chemically treated in 10 mol.l-1 solution of sodium hydroxide. All coatings were measured to determine their adhesive and bioactive properties and furthermore the antibacterial properties were tested in the case of first group. Surfaces of the coated substrates were investigated after the firing and after the individual tests with optical and electron microscopy and X-ray microdiffraction. A tape test demonstrated excellent adhesive property of all coatings to the substrate, classified with degree 5. A static in vitro test demonstrated bioactivity of nearly all the coatings. The basic silicate coating from the first group and one type of coating from the second group were identified as inert. Antibacterial properties of silicate coatings containing silver showed to be different when tested against Escherichia coli bacteria. A complete inhibition of the growth of bacteria under our experimental conditions was observed for the coating containing silver and monetite and a partial inhibition of the growth of bacteria for coatings containing silver and silver in combination with brushite.http://www.ceramics-silikaty.cz/2012/pdf/2012_04_314.pdfSol-gel coatingTitanium substrateAdhesionTape testIn vitro testBioactivity |
| spellingShingle | DIANA HORKAVCOVÁ TEREZA BĚLOUBKOVÁ ZUZANA MIZEROVÁ LUDVÍK ŠANDA ZUZANA CÍLOVÁ MARKÉTA ČASTORÁLOVÁ ALEŠ HELEBRANT COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE Ceramics-Silikáty Sol-gel coating Titanium substrate Adhesion Tape test In vitro test Bioactivity |
| title | COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE |
| title_full | COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE |
| title_fullStr | COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE |
| title_full_unstemmed | COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE |
| title_short | COMPARISON OF SOL-GEL SILICATE COATINGS ON Ti SUBSTRATE |
| title_sort | comparison of sol gel silicate coatings on ti substrate |
| topic | Sol-gel coating Titanium substrate Adhesion Tape test In vitro test Bioactivity |
| url | http://www.ceramics-silikaty.cz/2012/pdf/2012_04_314.pdf |
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