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Chifor E, Bordeianu I, Anastasescu C, Calderon-Moreno JM, Bratan V, Eftemie DI, Anastasescu M, Preda S, Plavan G, Pelinescu D, Ionescu R, Stoica I, Zaharescu M, Balint I. Bioactive Coatings Based on Nanostructured TiO 2 Modified with Noble Metal Nanoparticles and Lysozyme for Ti Dental Implants. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3186. [PMID: 36144974 PMCID: PMC9502567 DOI: 10.3390/nano12183186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/07/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
This work presents the synthesis of nanostructured TiO2 modified with noble metal nanoparticles (Au, Ag) and lysozyme and coated on titanium foil. Moreover, the specific structural and functional properties of the resulting inorganic and hybrid materials were explored. The purpose of this study was to identify the key parameters for developing engineered coatings on titanium foil appropriate for efficient dental implants with intrinsic antibacterial activity. TiO2 nanoparticles obtained using the sol-gel method were deposited on Ti foil and modified with Au/Ag nanoparticles. Morphological and structural investigations (scanning electron and atomic force microscopies, X-ray diffraction, photoluminescence, and UV-Vis spectroscopies) were carried out for the characterization of the resulting inorganic coatings. In order to modify their antibacterial activity, which is essential for safe dental implants, the following aspects were investigated: (a) singlet oxygen (1O2) generation by inorganic coatings exposed to visible light irradiation; (b) the antibacterial behavior emphasized by titania-based coatings deposited on titanium foil (TiO2/Ti foil; Au-TiO2/Ti foil, Ag-TiO2/Ti foil); (c) the lysozyme bioactivity on the microbial substrate (Micrococcus lysodeicticus) after its adsorption on inorganic surfaces (Lys/TiO2/Ti foil; Lys/Au-TiO2/Ti foil, Lys/Ag-TiO2/Ti foil); (d) the enzymatic activity of the above-mentioned hybrids materials for the hydrolysis reaction of a synthetic organic substrate usually used for monitoring the lysozyme biocatalytic activity, namely, 4-Methylumbelliferyl β-D-N,N',N″-triacetylchitotrioside [4-MU-β- (GlcNAc)3]. This was evaluated by identifying the presence of a fluorescent reaction product, 7-hydroxy-4-metyl coumarin (4-methylumbelliferone).
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Affiliation(s)
- Emilian Chifor
- Faculty of Medicine of the Ovidius University, Aleea Universitatii nr.1, 900470 Constanţa, Romania
- “Strungareata” SRL, Strada Garii nr. 24, 800217 Galati, Romania
| | - Ion Bordeianu
- Faculty of Medicine of the Ovidius University, Aleea Universitatii nr.1, 900470 Constanţa, Romania
| | - Crina Anastasescu
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Jose Maria Calderon-Moreno
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Veronica Bratan
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Diana-Ioana Eftemie
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Mihai Anastasescu
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Silviu Preda
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Gabriel Plavan
- Faculty of Biology, “Alexandru Ioan Cuza” University, 700505 Iasi, Romania
| | - Diana Pelinescu
- Faculty of Biology, Intrarea Portocalilor 1-3, Sector 5, 060101 Bucharest, Romania
| | - Robertina Ionescu
- Faculty of Biology, Intrarea Portocalilor 1-3, Sector 5, 060101 Bucharest, Romania
| | - Ileana Stoica
- Faculty of Biology, Intrarea Portocalilor 1-3, Sector 5, 060101 Bucharest, Romania
| | - Maria Zaharescu
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Ioan Balint
- “Ilie Murgulescu” Institute of Physical Chemistry of the Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
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Basiaga M, Walke W, Paszenda Z, Karasiński P, Szewczenko J. The effects of a SiO2 coating on the corrosion parameters cpTi and Ti-6Al-7Nb alloy. BIOMATTER 2014; 4:e28535. [PMID: 25482412 PMCID: PMC4122566 DOI: 10.4161/biom.28535] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The aim of this paper was to evaluate the usefulness of the sol-gel method application, to modificate the surface of the Ti6Al7Nb alloy and the cpTi titanium (Grade 4) with SiO2 oxide, applied on the vascular implants to improve their hemocompatibility. Mechanical treatment was followed by film deposition on surface of the titanium samples. An appropriate selection of the process parameters was verified in the studies of corrosion, using potentiodynamic and impedance method. A test was conducted in the solution simulating blood vessels environment, in simulated body fluid at t = 37.0 ± 1 °C and pH = 7.0 ± 0.2. Results showed varied electrochemical properties of the SiO2 film, depending on its deposition parameters. Correlations between corrosion resistance and layer adhesion to the substrate were observed, depending on annealing temperature.
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Affiliation(s)
- Marcin Basiaga
- a Department of Biomaterials and Medical Engineering Devices; Silesian University of Technology; Zabrze, Poland
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Ponta O, Gruian C, Vanea E, Oprea B, Steinhoff HJ, Simon S. Nanostructured biomaterials/biofluids interface processes: Titanium effect on methaemoglobin adsorption on titanosilicate microspheres. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.01.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Shibata Y, Suzuki D, Omori S, Tanaka R, Murakami A, Kataoka Y, Baba K, Kamijo R, Miyazaki T. The characteristics of in vitro biological activity of titanium surfaces anodically oxidized in chloride solutions. Biomaterials 2010; 31:8546-55. [DOI: 10.1016/j.biomaterials.2010.07.098] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 07/28/2010] [Indexed: 10/19/2022]
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Li Y, Ding D, Ning C, Bai S, Huang L, Li M, Mao D. Thermal stability and in vitro bioactivity of Ti-Al-V-O nanostructures fabricated on Ti6Al4V alloy. NANOTECHNOLOGY 2009; 20:065708. [PMID: 19417402 DOI: 10.1088/0957-4484/20/6/065708] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This work investigates the thermal stability and in vitro bioactivity of Ti-Al-V-O nanostructures grown on Ti6Al4V alloy through an anodization method. After anodization of the two-phase Ti6Al4V alloy, there were two different kinds of Ti-Al-V-O nanostructure (nanotube arrays grown in the alpha-phase region and irregular nanopores grown in the beta-phase region) that formed on the surface of the alloy. It was found that the Ti-Al-V-O nanotubes can withstand a high temperature of 675 degrees C in air without collapse, whereas the irregular Ti-Al-V-O nanopores presented a lower thermal stability. In vitro simulated body fluid (SBF) testing of heat-treated nanostructures indicated that a quick apatite formation on these nanostructures occurred after only several hours of sample immersion in the SBF.
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Affiliation(s)
- Yan Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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