1
|
Both J, Fülöp AP, Szabó GS, Katona G, Ciorîță A, Mureșan LM. Effect of the Preparation Method on the Properties of Eugenol-Doped Titanium Dioxide (TiO 2) Sol-Gel Coating on Titanium (Ti) Substrates. Gels 2023; 9:668. [PMID: 37623123 PMCID: PMC10454635 DOI: 10.3390/gels9080668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
The focus of this study was the preparation of sol-gel titanium dioxide (TiO2) coatings, by the dip-coating technique, on Ti6Al4V (TiGr5) and specific Ti implant substrates. In order to confer antibacterial properties to the layers, Eugenol was introduced in the coatings in two separate ways: firstly by introducing the Eugenol in the sol (Eug-TiO2), and secondly by impregnating into the already deposed TiO2 coating (TiO2/Eug). Optimization of Eugenol concentration as well as long term were performed in orderboth short- and long-term Eugenol concentration was performed to investigate the prepared samples thoroughly. The samples were investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curves (PDP). To investigate their resistance against Gram-negative Escherichia coli bacteria, microbiological analysis was performed on coatings prepared on glass substrates. Structural studies (FT-IR analysis, Raman spectroscopy) were performed to confirm Eugenol-TiO2 interactions. Coating thicknesses and adhesion were also determined for all samples. The results show that Eug-TiO2 presented with improved anticorrosive effects and significant antibacterial properties, compared to the other investigated samples.
Collapse
Affiliation(s)
- Julia Both
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany J. St., 400028 Cluj-Napoca, Romania
| | - Anita-Petra Fülöp
- Department of Chemistry and Chemical Engineering of Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany J. St., 400028 Cluj-Napoca, Romania
| | - Gabriella Stefania Szabó
- Department of Chemistry and Chemical Engineering of Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany J. St., 400028 Cluj-Napoca, Romania
| | - Gabriel Katona
- Department of Chemistry and Chemical Engineering of Hungarian Line, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany J. St., 400028 Cluj-Napoca, Romania
| | - Alexandra Ciorîță
- Department of Molecular Biology and Biotechnology, Electron Microscopy Centre, Faculty of Biology and Geology, Babeș-Bolyai University, 44 Republicii St., 400015 Cluj-Napoca, Romania
| | - Liana Maria Mureșan
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 11 Arany J. St., 400028 Cluj-Napoca, Romania
| |
Collapse
|
2
|
Pazarçeviren AE, Evis Z, Dikmen T, Altunbaş K, Yaprakçı MV, Keskin D, Tezcaner A. Alginate/gelatin/boron-doped hydroxyapatite-coated Ti implants: in vitro and in vivo evaluation of osseointegration. Biodes Manuf 2023. [DOI: 10.1007/s42242-022-00218-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
3
|
Li B, Li H, Yang H, Shu Y, Li K, Chen K, Xiao W, Liao X. Preparation and antibacterial properties of an AgBr@SiO 2/GelMA composite hydrogel. Biomed Mater 2022; 17. [PMID: 35015704 DOI: 10.1088/1748-605x/ac49f7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 01/11/2022] [Indexed: 11/12/2022]
Abstract
Pure gelatin hydrogels lack antibacterial function and have poor mechanical properties, which restrict their application in wound dressings. In this study, nanosized silver bromide-doped mesoporous silica (AgBr@SiO2) microspheres with hollow structures were prepared by a modified Stober method. The novel microspheres can not only release silver ions to treat bacteria but also release drugs to treat skin wound. Furthermore, AgBr@SiO2 microspheres were modified with propyl methacrylate, incorporated into methacrylated gelatin (GelMA), and crosslinked by UV light to prepare AgBr@SiO2/GelMA dressings consisting of composite hydrogels. The results showed that the AgBr@SiO2 microspheres could enhance the mechanical properties of the hydrogels. With the increase in the AgBr@SiO2 concentration from 0.5 to 1 mg/mL, the dressings demonstrated effective antimicrobial activity against both Staphylococcus aureus and Escherichia coli. Furthermore, full-thickness skin wounds in vivo wound healing studies with Sprague-Dawley rats were evaluated. When treated with AgBr@SiO2/GelMA containing 1 mg/mL AgBr@SiO2, only 15% of the wound area left on day 10. Histology results also showed the epidermal and dermal layers were better organized. These results suggest that AgBr@SiO2/GelMA-based dressing materials could be promising candidates for wound dressings.
Collapse
Affiliation(s)
- Bo Li
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing University of science and technology, 20# east road, college town, Chongqing, 401331, CHINA
| | - Hong Li
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, 401331, CHINA
| | - Haocheng Yang
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, 401331, CHINA
| | - Yue Shu
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, Chongqing, 401331, CHINA
| | - Kejiang Li
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, 401331, CHINA
| | - Ke Chen
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, 401331, CHINA
| | - Wenqian Xiao
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, 401331, CHINA
| | - Xiaoling Liao
- Chongqing University of Science and Technology, 20# east road, college town, Chongqing, 401331, CHINA
| |
Collapse
|