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Metallic Implant Surface Activation through Electrospinning Coating of Nanocomposite Fiber for Bone Regeneration. Int J Biomater 2023; 2023:1332814. [PMID: 36909981 PMCID: PMC10005868 DOI: 10.1155/2023/1332814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/18/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
There is a critical need in orthopedic and orthodontic clinics for enhanced implant-bone interface contact to facilitate the quick establishment of a strong and durable connection. Surface modification by bioactive multifunctional materials is a possible way to overcome the poor osteoconductivity and the potential infection of Ti-based implants. Ti-25Zr biometallic alloy was prepared by powder metallurgy technique and then coated by Nano-composite fiber using electrospinning. Ceramic Nanocompound (CaTiO3, BaTiO3) was used as filler material and individually added to polymeric matrices constructed from the blend of polycaprolactone/chitosan. Using optical microscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), and wettability, respectively, the morphology, chemical analysis, surface roughness, and contact angle measurements of the samples were evaluated. The result shows a significant improvement in cell viability, proliferation, and ALP activity for coated samples compared to noncoated samples. PCL/Chitosan/Nano-CaTiO3 (CA1) recorded remarkable enhancement from the surface-coated samples, demonstrating a significantly higher cell viability value after seven days of MC3T3-E1 cell culture, reaching 271.56 ± 13.15%, and better cell differentiation with ALP activity reaching 5.61 ± 0.35 fold change for the same culture time. PCL/Chitosan/Nano-BaTiO3 (BA1) also shows significant improvement in cell viability by 181.63 ± 17.87% and has ALP activity of 3.97 ± 0.67 fold change. For coated samples, cell proliferation likewise exhibits a considerable temporal increase; the improvement reaches 237.53% for (CA1) and 125.16% for (BA1) in comparison with uncoated samples (bare Ti-25Zr). The coated samples resist bacteria in the antibacterial test compared to the noncoated samples with no inhibition zone. This behavior suggests that a Nanocomposite fiber coat containing an active ceramic Nanocompound (CaTiO3, BaTiO3) promotes cell growth and holds promise for orthodontic and orthopedic bioapplication.
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Chen KT, Huang JW, Lin WT, Kuo TY, Chien CS, Chang CP, Lin YD. Effects of Micro-Arc Oxidation Discharge Parameters on Formation and Biomedical Properties of Hydroxyapatite-Containing Flower-like Structure Coatings. MATERIALS (BASEL, SWITZERLAND) 2022; 16:ma16010057. [PMID: 36614396 PMCID: PMC9821538 DOI: 10.3390/ma16010057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 05/12/2023]
Abstract
The micro-arc oxidation (MAO) process was used to prepare hydroxyapatite-containing flower-like structure coatings on commercially pure titanium substrates with various values of the applied voltage (330, 390, 450 V), applied current (0.4, 0.5, 0.6 A), and duration time (1, 3, 5 min). It was found that the surface morphology of the coatings was determined primarily by the applied voltage. A voltage of 330 V yielded a flower-like/plate-like structure, while voltages of 390 V and 450 V produced a flower-like structure and a porous morphology, respectively. The applied current and duration time mainly affected the coating formation speed and petal size of the flower-like structures, respectively. The coatings prepared using voltages of 330 V and 390 V (0.6 A, 5 min) both contained Ti, TiO2-A (anatase), TiO2-R (rutile), DCPD (CaHPO4·2H2O, calcium hydrogen phosphate), and hydroxyapatite (HA). However, the latter coating contained less DCPD and had a higher HA/DCPD ratio and a Ca/P ratio closer to the ideal value of HA. The coating prepared with a voltage of 450 V consisted mainly of Ti, TiO2-A, TiO2-R, and CaTiO3. For the coatings prepared with a voltage of 390 V, the flower-like structures consisted mainly of HA-containing compounds. DCPD plate-like structures were observed either between the HA-containing flower-like structures (330 V samples) or within the flower-like structures themselves (390 V samples). The coating surfaces with flower-like/plate-like or flower-like structures had a greater roughness, which increased their hydrophilicity and resulted in superior bioactivity (SBF immersion) and biocompatibility (MG-63 cell culture). The optimal biomedical performance was found in the 390 V coating due to its flower-like structure and high HA/DCPD ratio.
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Affiliation(s)
- Kuan-Ting Chen
- Department of Orthopaedics, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang District, Tainan 710, Taiwan
| | - Jun-Wei Huang
- Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, 1 Nan-Tai St., Tainan 710, Taiwan
| | - Wei-Ting Lin
- Department of Orthopaedics, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang District, Tainan 710, Taiwan
- Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, 1 Nan-Tai St., Tainan 710, Taiwan
| | - Tsung-Yuan Kuo
- Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, 1 Nan-Tai St., Tainan 710, Taiwan
- Correspondence: (T.-Y.K.); (C.-S.C.)
| | - Chi-Sheng Chien
- Department of Orthopaedics, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang District, Tainan 710, Taiwan
- Correspondence: (T.-Y.K.); (C.-S.C.)
| | - Ching-Ping Chang
- Department of Medical Research, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang District, Tainan City 710, Taiwan
| | - Yung-Ding Lin
- School of Intelligent Engineering, Shaoguan University, Shaoguan 512005, China
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