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Toirac B, Garcia-Casas A, Monclús MA, Aguilera-Correa JJ, Esteban J, Jiménez-Morales A. Influence of Addition of Antibiotics on Chemical and Surface Properties of Sol-Gel Coatings. MATERIALS 2022; 15:ma15144752. [PMID: 35888219 PMCID: PMC9317242 DOI: 10.3390/ma15144752] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 01/30/2023]
Abstract
Infection is one of the most common causes that leads to joint prosthesis failure. In the present work, biodegradable sol-gel coatings were investigated as a promising controlled release of antibiotics for the local prevention of infection in joint prostheses. Accordingly, a sol-gel formulation was designed to be tested as a carrier for 8 different individually loaded antimicrobials. Sols were prepared from a mixture of MAPTMS and TMOS silanes, tris(tri-methylsilyl)phosphite, and the corresponding antimicrobial. In order to study the cross-linking and surface of the coatings, a battery of examinations (Fourier-transform infrared spectroscopy, solid-state 29Si-NMR spectroscopy, thermogravimetric analysis, SEM, EDS, AFM, and water contact angle, thickness, and roughness measurements) were conducted on the formulations loaded with Cefoxitin and Linezolid. A formulation loaded with both antibiotics was also explored. Results showed that the coatings had a microscale roughness attributed to the accumulation of antibiotics and organophosphites in the surface protrusions and that the existence of chemical bonds between antibiotics and the siloxane network was not evidenced.
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Affiliation(s)
- Beatriz Toirac
- Materials Science and Engineering and Chemical Engineering Department, Carlos III University of Madrid, 28911 Madrid, Spain; (A.G.-C.); (A.J.-M.)
- Correspondence:
| | - Amaya Garcia-Casas
- Materials Science and Engineering and Chemical Engineering Department, Carlos III University of Madrid, 28911 Madrid, Spain; (A.G.-C.); (A.J.-M.)
- CIDETEC, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
| | - Miguel A. Monclús
- Micro- and Nano-Mechanics Department, Madrid Institutes for Advanced Studies (IMDEA)—Materials, 28906 Madrid, Spain;
| | - John J. Aguilera-Correa
- Clinical Microbiology Department, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (J.J.A.-C.); (J.E.)
- CIBERINFEC, ISCIII—CIBER de Enfermedades Infecciosas, Instituto Carlos III, 28029 Madrid, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (J.J.A.-C.); (J.E.)
- CIBERINFEC, ISCIII—CIBER de Enfermedades Infecciosas, Instituto Carlos III, 28029 Madrid, Spain
| | - Antonia Jiménez-Morales
- Materials Science and Engineering and Chemical Engineering Department, Carlos III University of Madrid, 28911 Madrid, Spain; (A.G.-C.); (A.J.-M.)
- CIBERINFEC, ISCIII—CIBER de Enfermedades Infecciosas, Instituto Carlos III, 28029 Madrid, Spain
- Alvaro Alonso Barba Technological Institute of Chemistry and Materials, Carlos III University of Madrid, 28911 Madrid, Spain
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Hydroxyapatite and β-TCP modified PMMA-TiO 2 and PMMA-ZrO 2 coatings for bioactive corrosion protection of Ti6Al4V implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111149. [PMID: 32806280 DOI: 10.1016/j.msec.2020.111149] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/02/2020] [Accepted: 05/31/2020] [Indexed: 12/23/2022]
Abstract
Organic-inorganic hybrid coatings deposited on different types of metallic alloys have shown outstanding anticorrosive performance. The incorporation of osteoconductive additives such as hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) into organic-inorganic hybrid coatings is promising to improve the osseointegration and corrosion resistance of Ti6Al4V alloys, which are the most widely used metallic orthopedic and dental implant materials today. Therefore, this study evaluated the capability of poly(methyl methacrylate) (PMMA)-TiO2 and PMMA-ZrO2 hybrid coatings modified with HA and β-TCP to act as bioactive and corrosion protection coatings for Ti6Al4V alloys. In terms of cell growth and mineralization, osteoblast viability, Ca+2 deposition and alkaline phosphatase assays revealed a significant improvement for the HA and β-TCP modified coatings, compared to the bare alloy. This can be explained by an increase in nanoscale roughness and associated higher surface free energy, which lead to enhanced protein adsorption to promote osteoblast attachment and functions on the coatings. The effect of HA and β-TCP additives on the anticorrosive efficiency was studied by electrochemical impedance spectroscopy (EIS) in a simulated body fluid (SBF) solution. The coatings presented a low-frequency impedance modulus of up to 430 GΩ cm2, 5 decades higher than the bare Ti6Al4V alloy. These findings provide clear evidence of the beneficial role of HA and β-TCP modified hybrid coatings, improving both the biocompatibility and corrosion resistance of the Ti6Al4V alloy.
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Radovanović MB, Tasić Ž, Simonović AT, Petrović Mihajlović MB, Antonijević MM. Corrosion Behavior of Titanium in Simulated Body Solutions with the Addition of Biomolecules. ACS OMEGA 2020; 5:12768-12776. [PMID: 32548461 PMCID: PMC7288364 DOI: 10.1021/acsomega.0c00390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Titanium is one of the most used biomaterials for different applications. The aim of this study is to investigate the influence of adenine, thymine, and l-histidine as important biomolecules in the human body on the corrosion behavior of titanium in simulated body solutions. Open circuit measurements, potentiodynamic measurements, electrochemical impedance spectroscopy measurements, and quantum chemical calculations were employed during the investigation. All electrochemical methods used revealed that the investigated biomolecules provide better corrosion resistance to titanium in artificial body solutions. The increase in corrosion resistance is a result of the formation of a stable protective film on the metal surface. Also, quantum chemical calculations are in compliance with electrochemical test results and indicate that adenine, thymine, and l-histidine may act as corrosion inhibitors in the investigated solutions.
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PMMA-silica nanocomposite coating: Effective corrosion protection and biocompatibility for a Ti6Al4V alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110713. [DOI: 10.1016/j.msec.2020.110713] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/30/2019] [Accepted: 01/30/2020] [Indexed: 12/31/2022]
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El Hadad AA, Peón E, García-Galván FR, Barranco V, Parra J, Jiménez-Morales A, Galván JC. Biocompatibility and Corrosion Protection Behaviour of Hydroxyapatite Sol-Gel-Derived Coatings on Ti6Al4V Alloy. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E94. [PMID: 28772455 PMCID: PMC5459123 DOI: 10.3390/ma10020094] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 01/28/2023]
Abstract
The aim of this work was to prepare hydroxyapatite coatings (HAp) by a sol-gel method on Ti6Al4V alloy and to study the bioactivity, biocompatibility and corrosion protection behaviour of these coatings in presence of simulated body fluids (SBFs). Thermogravimetric/Differential Thermal Analyses (TG/DTA) and X-ray Diffraction (XRD) have been applied to obtain information about the phase transformations, mass loss, identification of the phases developed, crystallite size and degree of crystallinity of the obtained HAp powders. Fourier Transformer Infrared Spectroscopy (FTIR) has been utilized for studying the functional groups of the prepared structures. The surface morphology of the resulting HAp coatings was studied by Scanning Electron Microscopy (SEM). The bioactivity was evaluated by soaking the HAp-coatings/Ti6Al4V system in Kokubo's Simulated Body Fluid (SBF) applying Inductively Coupled Plasma (ICP) spectrometry. 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) and Alamar blue cell viability assays were used to study the biocompatibility. Finally, the corrosion behaviour of HAp-coatings/Ti6Al4V system was researched by means of Electrochemical Impedance Spectroscopy (EIS). The obtained results showed that the prepared powders were nanocrystalline HAp with little deviations from that present in the human bone. All the prepared HAp coatings deposited on Ti6Al4V showed well-behaved biocompatibility, good bioactivity and corrosion protection properties.
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Affiliation(s)
- Amir A El Hadad
- Centro Nacional de Investigaciones Metalúrgicas (CSIC), Madrid 28040, Spain.
- Biophysics Branch, Physics Department, Al-Azhar University, Nasr City, Cairo 11884, Egypt.
| | - Eduardo Peón
- Centro de Biomateriales, Universidad de La Habana, Havana 10600, Cuba.
| | | | - Violeta Barranco
- Instituto de Ciencia de Materiales de Madrid (CSIC), Madrid 28049, Spain.
| | - Juan Parra
- Unidad de Investigación Clínica y Biopatología Experimental, Hospital Provincial de Ávila, Unidad Asociada al CSIC, Ávila 05003, Spain.
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid 28029, Spain.
| | - Antonia Jiménez-Morales
- Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Universidad Carlos III de Madrid, Leganés (Madrid) 28911, Spain.
| | - Juan Carlos Galván
- Centro Nacional de Investigaciones Metalúrgicas (CSIC), Madrid 28040, Spain.
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