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Hsieh KH, Hsu HC, Kao YL, Wu SC, Yang TY, Ho WF. Nanohydroxyapatite/Peptide Composite Coatings on Pure Titanium Surfaces with Nanonetwork Structures Using Oyster Shells. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:577. [PMID: 38607112 PMCID: PMC11013437 DOI: 10.3390/nano14070577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/19/2024] [Accepted: 03/25/2024] [Indexed: 04/13/2024]
Abstract
Titanium and its alloys are extensively applied in artificial tooth roots because of their excellent corrosion resistance, high specific strength, and low elastic modulus. However, because of their biological inertness, their surface needs to be modified to improve the osteointegration of titanium implants. The preparation of biologically active calcium-phosphorus coatings on the surface of an implant is one effective method for enhancing the likelihood of bone integration. In this study, osteoinductive peptides were extracted from oyster shells by using acetic acid. Two peptide-containing hydroxyapatite (HA) composite coatings were then prepared: one coating was prepared by hydrothermally synthesizing an HA coating in the presence of peptides (HA/P/M), and the other coating was prepared by hydrothermally synthesizing HA and then immersing the hydrothermally synthesized HA in a peptide solution (HA/P/S). Characterization results indicated that the composite HA coatings containing oyster shell-based peptides were successfully prepared on the alkali-treated pure titanium surfaces. The HA/P/M and HA/P/S composite coatings were found to exhibit excellent hydrophilicity. Protein adsorption tests confirmed that the HA/P/M and HA/P/S coatings had an approximately 2.3 times higher concentration of adsorbed proteins than the pure HA coating.
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Affiliation(s)
- Kuan-Hsiang Hsieh
- Department of Surgery, Division of Orthopaedics, Zuoying Armed Forces General Hospital, Kaohsiung 813204, Taiwan;
| | - Hsueh-Chuan Hsu
- Department of Dental Technology and Materials Science, Central Taiwan University of Science and Technology, Taichung 406053, Taiwan; (H.-C.H.); (S.-C.W.)
| | - Yu-Lin Kao
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 811726, Taiwan;
| | - Shih-Ching Wu
- Department of Dental Technology and Materials Science, Central Taiwan University of Science and Technology, Taichung 406053, Taiwan; (H.-C.H.); (S.-C.W.)
| | - Tzu-Yen Yang
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 811726, Taiwan
| | - Wen-Fu Ho
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung 811726, Taiwan
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Mohanta M, Ramdhun Y, Thirugnanam A, Gupta R, Verma D, Deepak T, Babu AR. Biodegradable AZ91 magnesium alloy/sirolimus/poly D, L-lactic-co-glycolic acid-based substrate for cardiovascular device application. J Biomed Mater Res B Appl Biomater 2024; 112:e35350. [PMID: 37966681 DOI: 10.1002/jbm.b.35350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 09/26/2023] [Accepted: 10/30/2023] [Indexed: 11/16/2023]
Abstract
Biodegradable drug-eluting stents (DESs) are gaining importance owing to their attractive features, such as complete drug release to the target site. Magnesium (Mg) alloys are promising materials for future biodegradable DESs. However, there are few explorations using biodegradable Mg for cardiovascular stent application. In this present study, sirolimus-loaded poly D, L-lactic-co-glycolic acid (PLGA)-coated/ sirolimus-fixed/AZ91 Mg alloy-based substrate was developed via a layer-by-layer approach for cardiovascular stent application. The AZ91 Mg alloy was prepared through the squeeze casting technique. The casted AZ91 Mg alloy (Mg) was alkali-treated to provide macroporous networks to hold the sirolimus and PLGA layers. The systematic characterization was investigated via electrochemical, optical, physicochemical, and in-vitro biological characteristics. The presence of the Mg17 Al12 phase in the Mg sample was found in the x-ray diffraction system (XRD) spectrum which influences the corrosion behavior of the developed substrate. The alkali treatment increases the substrate's hydrophilicity which was confirmed through static contact angle measurement. The anti-corrosion characteristic of casted-AZ91 Mg alloy (Mg) was slightly less than the sirolimus-loaded PLGA-coated alkali-treated AZ91 Mg alloy (Mg/Na/S/P) substrate. However, dissolution rates for both substrates were found to be controlled at cell culture conditions. Radiographic densities of AZ91 Mg alloy substrates (Mg, Mg/Na, and Mg/Na/S/P) were measured to be 0.795 ± 0.015, 0.742 ± 0.01, and 0.712 ± 0.017, respectively. The star-shaped structure of 12% sirolimus/PLGA ensures the bioavailability of the drugs. Sirolimus release kinetic was fitted up to 80% with the "Higuchi model" for Mg samples, whereas Mg/Na/S/P showed 45% fitting with a zero-order mechanism. The Mg/Na/S/P substrate showed a 70% antithrombotic effect compared to control. Further, alkali treatment enhances the antibacterial characteristic of AZ91 Mg alloy. Also, the alkali-treated sirolimus-loaded substrates (Mg/Na/S and Mg/Na/S/P) inhibit the valvular interstitial cell's growth significantly in in-vitro. Hence, the results imply that sirolimus-loaded PLGA-coated AZ91 Mg alloy-based substrate can be a potential candidate for cardiovascular stent application.
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Affiliation(s)
- Monalisha Mohanta
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Yugesh Ramdhun
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Arunachalam Thirugnanam
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Ritvesh Gupta
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Devendra Verma
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Thirumalai Deepak
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Anju R Babu
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
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Mizutani T, Tsuchiya S, Honda M, Montenegro Raudales JL, Kuroda K, Miyamoto H, Nakamura T, Ishibashi K, Shibuya Y. Alkali-treated titanium dioxide promotes formation of proteoglycan layer and altered calcification and immunotolerance capacity in bone marrow stem cell. Biochem Biophys Rep 2023; 36:101569. [PMID: 38024862 PMCID: PMC10658208 DOI: 10.1016/j.bbrep.2023.101569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction In this study, we report that a proteoglycans (PGs)-layer between the bone and titanium dioxide (TiO2) surface after osseointegration improved the calcification capacity and immunotolerance of human bone marrow mesenchymal stem cells (hBMSCs) on TiO2. Alkaline treatment of TiO2 is a method for promoting osteogenesis in hBMSCs. We hypothesized that promotion of osteogenesis due to alkaline treatment was caused by changing PGs-layer on TiO2. Objective This study aimed to analyze whether alkaline treatment of TiO2 affects PGs-layer formation and immunotolerance in hBMSCs. Methods The topology and wettability of the alkaline-treated titanium (Ti-Al) and unprocessed titanium (Ti-MS) surfaces were characterized. Initial cell attachment, cell proliferation, calcification capacity, alkaline phosphatase activity, PGs-layer formation, PGs function, and the expression of osteogenic and immunotolerance-related genes were analyzed. The conditioned medium (CM) from hBMSCs grown on Ti-Al and Ti-MS was added to macrophages (hMps) and Jurkat cells, and immunotolerance gene expression in these cells was analyzed. Results hBMSCs cultured on Ti-Al showed increased initial cell attachment, cell proliferation, PG-layer formation, and osteogenic capacity compared with hBMSCs on Ti-MS. Gene expression of indoleamine 2,3-dioxygenase (IDO) in the hBMSCs cultured on Ti-Al was higher than that in the hBMSCs on Ti-MS. CM from hBMSCs did not affect markers of M1 and M2 macrophages in hMps. CM from hBMSCs cultured on Ti-Al altered the gene expression of Foxp3 in Jurkat cells compared to that of CM from hBMSCs on Ti-MS. Significance These results suggest that alkaline treatment of TiO2 altered PGs-layer formation, and changed the osteogenesis and immunotolerance of hBMSCs.
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Affiliation(s)
- Tomomi Mizutani
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - Shuhei Tsuchiya
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - Masaki Honda
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 470-0131, Japan
| | - Jorge Luis Montenegro Raudales
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 470-0131, Japan
| | - Kensuke Kuroda
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan
| | - Hironori Miyamoto
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - Tomohisa Nakamura
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - Kenichiro Ishibashi
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - Yasuyuki Shibuya
- Department of Oral Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi Mizuho-cho Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
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Wood PF, da Costa Fernandes CJ, de Almeida GS, Suter LC, de Lima Parra JPRL, Bezerra FJ, Zambuzzi WF. The Action of Angiocrine Molecules Sourced from Mechanotransduction-Related Endothelial Cell Partially Explain the Successful of Titanium in Osseointegration. J Funct Biomater 2023; 14:415. [PMID: 37623660 PMCID: PMC10455987 DOI: 10.3390/jfb14080415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 08/26/2023] Open
Abstract
Since Branemark's findings, titanium-based alloys have been widely used in implantology. However, their success in dental implants is not known when considering the heterogenicity of housing cells surrounding the peri-implant microenvironment. Additionally, they are expected to recapitulate the physiological coupling between endothelial cells and osteoblasts during appositional bone growth during osseointegration. To investigate whether this crosstalk was happening in this context, we considered the mechanotransduction-related endothelial cell signaling underlying laminar shear stress (up to 3 days), and this angiocrine factor-enriched medium was harvested further to use exposing pre-osteoblasts (pOb) for up to 7 days in vitro. Two titanium surfaces were considered, as follows: double acid etching treatment (w_DAE) and machined surfaces (wo_DAE). These surfaces were used to conditionate the cell culture medium as recommended by ISO10993-5:2016, and this titanium-enriched medium was later used to expose ECs. First, our data showed that there is a difference between the surfaces in releasing Ti molecules to the medium, providing very dynamic surfaces, where the w_DAE was around 25% higher (4 ng/mL) in comparison to the wo_DAE (3 ng/mL). Importantly, the ECs took up some of this titanium content for up to 3 days in culture. However, when this conditioned medium was used to expose pOb for up to 7 days, considering the angiocrine factors released from ECs, the concentration of Ti was lesser than previously reported, reaching around 1 ng/mL and 2 ng/mL, respectively. Thereafter, pOb exposed to this angiocrine factor-enriched medium presented a significant difference when considering the mechanosignaling subjected to the ECs. Shear-stressed ECs showed adequate crosstalk with osteoblasts, stimulating the higher expression of the Runx2 gene and driving higher expressions of Alkaline phosphatase (ALP), bone sialoprotein (BSP), and osteocalcin. Mechanotransduction-related endothelial cell signaling as a source of angiocrine molecules also stimulated the higher expression of the Col3A1 gene in osteoblasts, which suggests it is a relevant protagonist during trabecular bone growth. In fact, we investigated ECM remodeling by first evaluating the expression of genes related to it, and our data showed a higher expression of matrix metalloproteinase (MMP) 2 and MMP9 in response to mechanosignaling-based angiocrine molecules, independent of considering w_DAE or the wo_DAE, and this profile reflected on the MMP2 and MMP9 activities evaluated via gelatin-based zymography. Complimentarily, the ECM remodeling seemed to be a very regulated mechanism in mature osteoblasts during the mineralization process once both TIMP metallopeptidase inhibitor 1 and 2 (TIMP1 and TIMP2, respectively) genes were significantly higher in response to mechanotransduction-related endothelial cell signaling as a source of angiocrine molecules. Altogether, our data show the relevance of mechanosignaling in favoring ECs' release of bioactive factors peri-implant, which is responsible for creating an osteogenic microenvironment able to drive osteoblast differentiation and modulate ECM remodeling. Taking this into account, it seems that mechanotransduction-based angiocrine molecules explain the successful use of titanium during osseointegration.
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Affiliation(s)
| | | | | | | | | | | | - Willian Fernando Zambuzzi
- Department of Chemical and Biological Sciences, Institute of Biosciences, UNESP—Universidade Estadual Paulista, Botucatu 18618-970, Brazil
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Han X, Ma J, Tian A, Wang Y, Li Y, Dong B, Tong X, Ma X. Surface modification techniques of titanium and titanium alloys for biomedical orthopaedics applications: A review. Colloids Surf B Biointerfaces 2023; 227:113339. [PMID: 37182380 DOI: 10.1016/j.colsurfb.2023.113339] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
Biomedical alloys have an important share in orthopedic applications. Among them, titanium and its titanium alloys are widely used as implant materials because of their excellent mechanical properties and non-cytotoxicity. However, its disadvantages such as its biological inertness and poor antibacterial properties inhibit its further development. Therefore, the surface properties of titanium are crucial in the implantation process and determine the success of the implant. The main purpose of this review is to provide a comprehensive and detailed description of the modification techniques used for the surface modification of titanium implants. In this paper, the corresponding technical methods are introduced systematically from four aspects: mechanical method, physical surface modification, chemical surface modification and electrochemical technique to understand the experimental mechanism of each modification technique, and the above methods can indeed improve the various properties of titanium and its alloys. With the increasing demand for implants in the future, the requirements for surface properties will also increase. Therefore, the development of new coating materials with higher performance by combining various advantages of existing modification technologies is the main trend of future research on surface modification of titanium alloys.
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Affiliation(s)
- Xiao Han
- Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Jianxiong Ma
- Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Aixian Tian
- Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Yan Wang
- Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Yan Li
- Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Benchao Dong
- Tianjin Hospital, Tianjin University, Tianjin 300211, China
| | - Xue Tong
- Tianjin Hospital, Tianjin University, Tianjin 300211, China; School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinlong Ma
- Tianjin Hospital, Tianjin University, Tianjin 300211, China.
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Jones CF, Quarrington RD, Tsangari H, Starczak Y, Mulaibrahimovic A, Burzava ALS, Christou C, Barker AJ, Morel J, Bright R, Barker D, Brown T, Vasilev K, Anderson PH. A Novel Nanostructured Surface on Titanium Implants Increases Osseointegration in a Sheep Model. Clin Orthop Relat Res 2022; 480:2232-2250. [PMID: 36001022 PMCID: PMC10476811 DOI: 10.1097/corr.0000000000002327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/28/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND A nanostructured titanium surface that promotes antimicrobial activity and osseointegration would provide the opportunity to create medical implants that can prevent orthopaedic infection and improve bone integration. Although nanostructured surfaces can exhibit antimicrobial activity, it is not known whether these surfaces are safe and conducive to osseointegration. QUESTIONS/PURPOSES Using a sheep animal model, we sought to determine whether the bony integration of medical-grade, titanium, porous-coated implants with a unique nanostructured surface modification (alkaline heat treatment [AHT]) previously shown to kill bacteria was better than that for a clinically accepted control surface of porous-coated titanium covered with hydroxyapatite (PCHA) after 12 weeks in vivo. The null hypothesis was that there would be no difference between implants with respect to the primary outcomes: interfacial shear strength and percent intersection surface (the percentage of implant surface with bone contact, as defined by a micro-CT protocol), and the secondary outcomes: stiffness, peak load, energy to failure, and micro-CT (bone volume/total volume [BV/TV], trabecular thickness [Tb.Th], and trabecular number [Tb.N]) and histomorphometric (bone-implant contact [BIC]) parameters. METHODS Implants of each material (alkaline heat-treated and hydroxyapatite-coated titanium) were surgically inserted into femoral and tibial metaphyseal cancellous bone (16 per implant type; interference fit) and in tibial cortices at three diaphyseal locations (24 per implant type; line-to-line fit) in eight skeletally mature sheep. At 12 weeks postoperatively, bones were excised to assess osseointegration of AHT and PCHA implants via biomechanical push-through tests, micro-CT, and histomorphometry. Bone composition and remodeling patterns in adult sheep are similar to that of humans, and this model enables comparison of implants with ex vivo outcomes that are not permissible with humans. Comparisons of primary and secondary outcomes were undertaken with linear mixed-effects models that were developed for the cortical and cancellous groups separately and that included a random effect of animals, covariates to adjust for preoperative bodyweight, and implant location (left/right limb, femoral/tibial cancellous, cortical diaphyseal region, and medial/lateral cortex) as appropriate. Significance was set at an alpha of 0.05. RESULTS The estimated marginal mean interfacial shear strength for cancellous bone, adjusted for covariates, was 1.6 MPa greater for AHT implants (9.3 MPa) than for PCHA implants (7.7 MPa) (95% CI 0.5 to 2.8; p = 0.006). Similarly, the estimated marginal mean interfacial shear strength for cortical bone, adjusted for covariates, was 6.6 MPa greater for AHT implants (25.5 MPa) than for PCHA implants (18.9 MPa) (95% CI 5.0 to 8.1; p < 0.001). No difference in the implant-bone percent intersection surface was detected for cancellous sites (cancellous AHT 55.1% and PCHA 58.7%; adjusted difference of estimated marginal mean -3.6% [95% CI -8.1% to 0.9%]; p = 0.11). In cortical bone, the estimated marginal mean percent intersection surface at the medial site, adjusted for covariates, was 11.8% higher for AHT implants (58.1%) than for PCHA (46.2% [95% CI 7.1% to 16.6%]; p < 0.001) and was not different at the lateral site (AHT 75.8% and PCHA 74.9%; adjusted difference of estimated marginal mean 0.9% [95% CI -3.8% to 5.7%]; p = 0.70). CONCLUSION These data suggest there is stronger integration of bone on the AHT surface than on the PCHA surface at 12 weeks postimplantation in this sheep model. CLINICAL RELEVANCE Given that the AHT implants formed a more robust interface with cortical and cancellous bone than the PCHA implants, a clinical noninferiority study using hip stems with identical geometries can now be performed to compare the same surfaces used in this study. The results of this preclinical study provide an ethical baseline to proceed with such a clinical study given the potential of the alkaline heat-treated surface to reduce periprosthetic joint infection and enhance implant osseointegration.
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Affiliation(s)
- Claire F. Jones
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
- School of Mechanical Engineering, The University of Adelaide, Adelaide, Australia
| | - Ryan D. Quarrington
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Helen Tsangari
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Yolandi Starczak
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Adnan Mulaibrahimovic
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Anouck L. S. Burzava
- STEM, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | - Chris Christou
- Preclinical, Imaging and Research Laboratories, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Alex J. Barker
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | | | - Richard Bright
- STEM, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | | | | | - Krasimir Vasilev
- STEM, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | - Paul H. Anderson
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
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Zhao Y, Bai L, Zhang Y, Yao R, Sun Y, Hang R, Chen X, Wang H, Yao X, Xiao Y, Hang R. Type I collagen decorated nanoporous network on titanium implant surface promotes osseointegration through mediating immunomodulation, angiogenesis, and osteogenesis. Biomaterials 2022; 288:121684. [DOI: 10.1016/j.biomaterials.2022.121684] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 06/10/2022] [Accepted: 07/14/2022] [Indexed: 12/29/2022]
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Titanium alkalinization improves response of osteoblasts to zoledronic acid. Biointerphases 2022; 17:031004. [PMID: 35618545 DOI: 10.1116/6.0001670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This investigation is aimed to determine the effect of the modification of titanium surface with NaOH on the metabolism of osteoblasts treated with zoledronic acid (ZA). Machined and NaOH-treated titanium disks were used. Surfaces were characterized by scanning electron microscopy, confocal microscopy, and x-ray photoelectron spectroscopy (XPS) analysis. Human osteoblasts were seeded onto the disks. After 24 h, cells were treated with ZA at 5 μM for 7 days. At this point, cell viability, collagen synthesis, total protein production, alkaline phosphatase activity, and mineral nodule deposition were assessed. The results of surface roughness were descriptively and statistically analyzed (t-Student), while the XPS results were qualitatively described. Cell metabolism data were analyzed by the analysis of variance two-way and Tukey tests at a 5% significance level. The results demonstrated that NaOH-treatment increased surface roughness (p < .05) and confirmed the presence of sodium titanate and a pH switch on the NaOH-treated disks. This modification also resulted in higher cell viability, collagen synthesis, total protein production, and alkaline phosphatase by osteoblasts when compared to cells seeded onto machined disks (p < 0.05). In the presence of ZA, all cellular metabolism and differentiation parameters were significantly reduced for cells seeded on both surfaces (p < 0.05); however, the cells seeded onto modified surfaces showed higher values for these parameters, except for mineral nodule deposition (p < 0.05). NaOH modification improved cell adhesion and metabolism of osteogenic cells even in the presence of ZA. The surface modification of titanium with NaOH solution may be an interesting strategy to improve metabolism and differentiation of osteoblasts and accelerate osseointegration process, mainly for tissues exposed to ZA.
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Effect of electrochemical oxidation and drug loading on the antibacterial properties and cell biocompatibility of titanium substrates. Sci Rep 2022; 12:8595. [PMID: 35597786 PMCID: PMC9124201 DOI: 10.1038/s41598-022-12332-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/10/2022] [Indexed: 11/17/2022] Open
Abstract
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\begin{document}$${\text{ TiO}}_{2}$$\end{document}TiO2 nanotube array (TON) and controlled drug release system is employed to provide enhanced surface properties of titanium implants. Electrochemical anodization process is used to generate TON for introducing, vancomycin, an effective antibacterial drug against Staphylococcusaureus. TON loaded vancomycin is then coated with a number of layers of 10% gelatin using spin coating technique. The gelatin film is reinforced with graphene oxide (GO) nanoparticles to improve the surface bioactivity. The surface of the samples is characterized by field emission electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), and contact angle measurement. The results illustrate that the TON was constructed and vancomycin molecules are successfully loaded. The drug release study shows that the amount of released vancomycin is controlled by the thickness of gelatin layers. With an increase in gelatin film layers from 3 to 7, the release of vancomycin in the burst release phase decreased from 58 to 31%, and sustained release extended from 10 to 17 days. The addition of GO nanoparticles seems to reduce drug release in from 31 to 22% (burst release phase) and prolonged drug release (from 17 to 19 days). MTT assay indicates that samples show no cytotoxicity, and combination of GO nanoparticles with gelatin coating could highly promote MG63 cell proliferation. Soaking the samples in SBF solution after 3 and 7 days demonstrates that hydroxy apatite crystals were deposited on the TON surface with GO-gelatin coating more than surface of TON with gelatin. Moreover, based on the results of disc diffusion assay, both samples (loaded with Vancomycin and coated with gelatin and gelatin-GO) with the inhibition zones equaled to 20 mm show effective antibacterial properties against S. aureus. The evidence demonstrates that titania nanotube loaded with vancomycin and coated with gelatin-GO has a great potential for general applicability to the orthopedic implant field.
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Wu J, Yang J, Wang Y, Wang Y, Yu H, Han J, Zhang J. Biocompatible Coating on Micro‐structured Titanium Implants with Enhanced Osteogenesis to Facilitate Bone‐implant Integration. ChemistrySelect 2022. [DOI: 10.1002/slct.202103540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jiannan Wu
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
| | - Jing Yang
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
| | - Yanying Wang
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
| | - Yanduo Wang
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
| | - Haiyang Yu
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
| | - Jing Han
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
| | - Jian Zhang
- Department of Implantology Tianjin Stomatological Hospital School of Medicine Nankai University Tianjin 300041 China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction Tianjin 300041 China
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Rajendran A, Pattanayak DK. Bioactive and antimicrobial macro-/micro-nanoporous selective laser melted Ti-6Al-4V alloy for biomedical applications. Heliyon 2022; 8:e09122. [PMID: 35345400 PMCID: PMC8956888 DOI: 10.1016/j.heliyon.2022.e09122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/31/2021] [Accepted: 03/11/2022] [Indexed: 11/22/2022] Open
Abstract
Metal Additive Manufacturing (AM) technology is an emerging technology in biomedical field due to its unique ability to manufacture customized implants [Patients-specific Implants (PSIs)] replicating the complex bone structure from the relevant metal powders. PSIs could be developed through any AM technology, but the ultimate challenge lies in integrating the metallic implant with the living bone. Considering this aspect, in the present study, Ti alloy (Ti–6Al–4V) powder has been used to fabricate scaffolds of channel type macropores with 0–60% porosity using selective laser melting (SLM) and subsequent post-treatments paving way for surface microporosities. Surface chemical and subsequent heat treatments were carried out on thus developed Ti alloy scaffolds to improve its bioactivity, antibacterial activity and osteoblastic cell compatibility. NaOH and subsequent Ca(NO3)2/AgNO3 treatment induced the formation of a nanoporous network structure decorated with Ca–Ag ions. Ag nanoparticles covering the entire scaffold provided antibacterial activity and the presence of Ca2+ ions with anatase TiO2 layer further improved the bioactivity and osteoblastic cell compatibility of the scaffold. Therefore, SLM technology combined with heat treatment and surface modification could be effectively utilized to create macro-micro-nano structure scaffolds of Ti alloy that are bioactive, antibacterial, and cytocompatible.
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Affiliation(s)
- Archana Rajendran
- CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, 630006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Deepak K. Pattanayak
- CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu, 630006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Corresponding author.
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12
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Surface engineering of 3D-printed scaffolds with minerals and a pro-angiogenic factor for vascularized bone regeneration. Acta Biomater 2022; 140:730-744. [PMID: 34896633 DOI: 10.1016/j.actbio.2021.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/19/2021] [Accepted: 12/05/2021] [Indexed: 11/22/2022]
Abstract
Scaffolds functionalized with biomolecules have been developed for bone regeneration but inducing the regeneration of complex structured bone with neovessels remains a challenge. For this study, we developed three-dimensional printed scaffolds with bioactive surfaces coated with minerals and platelet-derived growth factor. The minerals were homogeneously deposited on the surface of the scaffold using 0.01 M NaHCO3 with epigallocatechin gallate in simulated body fluid solution (M2). The M2 scaffold demonstrated enhanced mineral coating amount per scaffold with a greater compressive modulus than the others which used different concentration of NaHCO3. Then, we immobilized PDGF on the mineralized scaffold (M2/P), which enhanced the osteogenic differentiation of human adipose derived stem cells in vitro and promoted the secretion of pro-angiogenic factors. Cells cultured in M2/P showed remarkable ratio of osteocalcin- and osteopontin-positive nuclei, and M2/P-derived medium induced endothelial cells to form tubule structures. Finally, the implanted M2/P scaffolds onto mouse calvarial defects had regenerated bone in 80.8 ± 9.8% of the defect area with the arterioles were formed, after 8 weeks. In summary, our scaffold, which composed of minerals and pro-angiogenic growth factor, could be used therapeutically to improve the regeneration of bone with a highly vascularized structure. STATEMENT OF SIGNIFICANCE: Surface engineered scaffolds have been developed for bone regeneration but inducing the volumetric regeneration of bone with neovessels remains a challenge. In here, we developed 3D printed scaffolds with bioactive surfaces coated with bio-minerals and platelet-derived growth factors. We proved that the 0.01 M NaHCO3 with polyphenol in simulated body fluid solution enhanced the deposition of bio-minerals and even distribution on the surface of scaffold. The in vitro studies demonstrated that the attached cells on the bioactive surface showed the enhanced osteogenic differentiation and secretion of pro-angiogenic factors. Finally, the scaffold with bioactive surface not only improved the regenerated volume of bone tissues but also increased neovessel formation after in vivo implantation onto mouse calvarial defect.
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13
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De Santis S, Rossi E, Sebastiani M, Sennato S, Bemporad E, Orsini M. A Nanoindentation Approach for Time-Dependent Evaluation of Surface Free Energy in Micro- and Nano-Structured Titanium. MATERIALS 2021; 15:ma15010287. [PMID: 35009432 PMCID: PMC8746133 DOI: 10.3390/ma15010287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/24/2021] [Accepted: 12/24/2021] [Indexed: 02/07/2023]
Abstract
Surface free energy (SFE) of titanium surfaces plays a significant role in tissue engineering, as it affects the effectiveness and long-term stability of both active coatings and functionalization and the establishment of strong bonds to the newly growing bone. A new contact–mechanics methodology based on high-resolution non-destructive elastic contacting nanoindentation is applied here to study SFE of micro- and nano-structured titanium surfaces, right after their preparation and as a function of exposure to air. The effectiveness of different surface treatments in enhancing SFE is assessed. A time-dependent decay of SFE within a few hours is observed, with kinetics related to the sample preparation. The fast, non-destructive method adopted allowed for SFE measurements in very hydrophilic conditions, establishing a reliable comparison between surfaces with different properties.
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Affiliation(s)
- Serena De Santis
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy;
- Correspondence:
| | - Edoardo Rossi
- Engineering Department, Università Degli Studi Roma Tre, Via Della Vasca Navale 79, 00146 Rome, Italy; (E.R.); (M.S.); (E.B.)
| | - Marco Sebastiani
- Engineering Department, Università Degli Studi Roma Tre, Via Della Vasca Navale 79, 00146 Rome, Italy; (E.R.); (M.S.); (E.B.)
| | - Simona Sennato
- CNR-ISC Sede Sapienza, Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Edoardo Bemporad
- Engineering Department, Università Degli Studi Roma Tre, Via Della Vasca Navale 79, 00146 Rome, Italy; (E.R.); (M.S.); (E.B.)
| | - Monica Orsini
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy;
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14
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Bai L, Chen P, Zhao Y, Hang R, Yao X, Tang B, Liu C, Xiao Y, Hang R. A micro/nano-biomimetic coating on titanium orchestrates osteo/angio-genesis and osteoimmunomodulation for advanced osseointegration. Biomaterials 2021; 278:121162. [PMID: 34628191 DOI: 10.1016/j.biomaterials.2021.121162] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/26/2021] [Accepted: 09/27/2021] [Indexed: 01/09/2023]
Abstract
Osseointegration is a sophisticated bone and implant healing process comprising of initial hematoma formation, immediate osteoimmunomodulation, angiogenesis, and osteogenesis. To fulfill rapid and satisfying osseointegration, this study developed a biomimetic implant coating that could confer the intraosseous implants a systematical regulation of the participatory processes. Herein, we shaped dissimilar nano-scale (NS) to form highly biomimetic structures of natural extracellular matrix (ECM) of the host bone and bone healing hematoma with micro/nano-scale (MNS) titania fiber-like network on the surface of titanium (Ti) implants. In vitro experiments revealed that the MNS not only facilitated osteogenic and angiogenic differentiation of bone marrow stromal cells (BMSCs) and endothelial cells, respectively, but also suppressed M1 macrophages (MΦs), whereas, stimulated pro-healing M2 phenotype. Notably, BMSCs on MNS surfaces enabled a significant immunomodulatory effect on MΦs resulting in the downregulation of inflammation-related cell signaling pathways. The favorable osteoimmune microenvironment manipulated by MNS further facilitated osteo-/angio-genesis via the crosstalk of multi-signaling pathways. In vivo evaluation mirrored the aforementioned results, and depicted that MNS induced ameliorative osseointegration when compared with the NS as well as the pristine Ti implant. The study demonstrated the modulatory effect of the multifaceted biomimetic structure on spatiotemporal regulation of the participatory processes during osseointegration.
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Affiliation(s)
- Long Bai
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; Laboratory of Biomaterial Surfaces & Interfaces, Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China; School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia; Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai, 200237, China
| | - Peiru Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Institute of Lifeomics, Beijing, 102206, China
| | - Ya Zhao
- Laboratory of Biomaterial Surfaces & Interfaces, Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Ruiyue Hang
- Laboratory of Biomaterial Surfaces & Interfaces, Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xiaohong Yao
- Laboratory of Biomaterial Surfaces & Interfaces, Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Bin Tang
- Laboratory of Biomaterial Surfaces & Interfaces, Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China; Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai, 200237, China
| | - Yin Xiao
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Australia; Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia.
| | - Ruiqiang Hang
- Laboratory of Biomaterial Surfaces & Interfaces, Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China.
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15
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Nesabi M, Valanezhad A, Safaee S, Odatsu T, Abe S, Watanabe I. A novel multi-structural reinforced treatment on Ti implant utilizing a combination of alkali solution and bioactive glass sol. J Mech Behav Biomed Mater 2021; 124:104837. [PMID: 34601434 DOI: 10.1016/j.jmbbm.2021.104837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/09/2021] [Accepted: 09/12/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Alkali treatment and bioactive glass (BG) sol dip-coating are well-known individual methods for titanium (Ti) surface modification. In this study, a unique combination of alkali treatment and bioactive glass sol dip coating was applied to the Ti substrate, then the mechanical properties and cell responses were investigated. METHODS Based on the methods introduced above, the Ti substrate was treated by 6 mL of an NaOH 5 M aqueous solution for 24 h at 60 ̊C; this was followed by adding 1.2 mL of a BG 58S sol to form a novel combined nanostructure network covered by a thin BG layer. For the assessment of the formed coating layer, the morphology, elemental analysis, phase structure, adhesion property and the cell response of the untreated and treated surfaces were investigated. RESULTS The BG coating layer was reinforced by the nanostructure, fabricated through the alkali treatment. The results obtained by applying the combined modification method confirmed that the mechanical and biological properties of the fabricated surface demonstrated the highest performance compared to that of the unmodified and individually modified surfaces. SIGNIFICANCE The achieved upgrades for this method could be gained from the demanded porous nanostructure and the apatite transformation ability of the alkali treatment. Therefore, the hybridized application of the alkali-BG treatment could be introduced as a promising surface modification strategy for hard-tissue replacement applications.
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Affiliation(s)
- Mahdis Nesabi
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Alireza Valanezhad
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan.
| | - Sirus Safaee
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Tetsurou Odatsu
- Department of Applied Prosthodontics, Institute of Biomedical Sciences, Nagasaki University, 1-7-1, Sakamoto, Nagasaki, 852-8588, Japan
| | - Shigeaki Abe
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Ikuya Watanabe
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
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16
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Kunrath MF, Muradás TC, Penha N, Campos MM. Innovative surfaces and alloys for dental implants: What about biointerface-safety concerns? Dent Mater 2021; 37:1447-1462. [PMID: 34426019 DOI: 10.1016/j.dental.2021.08.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES The present review article aimed to discuss the recent technologies employed for the development of dental implants, mainly regarding innovative surface treatments and alternative alloys, emphasizing the bio-tribocorrosion processes. METHODS An electronic search applying specific MeSH terms was carried out in PubMed and Google Scholar databases to collect data until August 2021, considering basic, pre-clinical, clinical and review studies. The relevant articles (n=111), focused on innovative surface treatments for dental implants and their potential undesirable biological effects, were selected and explored. RESULTS Novel texturization methodologies for dental implants clearly provided superficial and structural atomic alterations in micro- and nanoscale, promoting different mechanical-chemical interactions when applied in the clinical set. Some particulate metals released from implant surfaces, their degradation products and/or contaminants exhibited local and systemic reactions after implant installation and osseointegration, contributing to unexpected treatment drawbacks and adverse effects. Therefore, there is an urgent need for development of pre-clinical and clinical platforms for screening dental implant devices, to predict the biointerface reactions as early as possible during the development phases. SIGNIFICANCE Modern surface treatments and innovative alloys developed for dental implants are not completely understood regarding their integrity during long-term clinical function, especially when considering the bio-tribocorrosion process. From this review, it is possible to assume that degradation and contamination of dental surfaces might be associated within peri-implant inflammation and cumulative long-lasting systemic toxicity. The in-depth comprehension of the biointerface modifications on these novel surface treatments might preclude unnecessary expenses and postoperative complications involving osseointegration failures.
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Affiliation(s)
- Marcel F Kunrath
- Programa de Pós-Graduação em Odontologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Centro de Pesquisa em Toxicologia e Farmacologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Thaís C Muradás
- Centro de Pesquisa em Toxicologia e Farmacologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina e Ciências da Saúde, Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - Maria M Campos
- Programa de Pós-Graduação em Odontologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Centro de Pesquisa em Toxicologia e Farmacologia, Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina e Ciências da Saúde, Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
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17
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Luo F, Wang L, Xiao Z, Zhu X, Fan Y, Wang K, Zhang X. Application of femtosecond laser microfabrication in the preparation of advanced bioactive titanium surfaces. J Mater Chem B 2021; 9:3912-3924. [PMID: 33928992 DOI: 10.1039/d1tb00231g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface activation of titanium plays a key role in the biological properties of titanium implants as bone repair materials. Improving the ability to induce apatite precipitation on the surface was a well-accepted titanium bioactivation route. In this study, advanced femtosecond laser microfabrication was applied to modify titanium surfaces, and the effect of femtosecond laser etching on apatite precipitation was investigated and compared with popular titanium modification methods. Meanwhile, the mechanism of apatite formation after femtosecond laser modification was interpreted from the point of materials science. The surface physical-chemical characterization results showed that femtosecond laser etching can improve the surface hydrophilicity and increase the surface energy. Compared with traditional abrasive paper and acid-alkali treatment, this method increased the contents of active sites including titanium oxide and titanium-hydroxyl on titanium surfaces. TiO2 on the surface was transformed to TiO after femtosecond laser treatment. The samples etched with 0.3 W and 0.5 W femtosecond lasers had a better ability to induce apatite deposition than those treated with traditional mechanical treatment and popular acid-alkali modification, which would lead to better bioactivity and osteointegration. Considering the technical advantages of femtosecond lasers in microfabrication, it provides a more efficient and controllable scheme for the bioactivation of titanium. This research would improve the application potential of femtosecond laser treatment, such as micropattern preparation and surface activation, in the field of biomaterials.
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Affiliation(s)
- Fengxiong Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Ling Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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18
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Hydroxyapatite Formation on Coated Titanium Implants Submerged in Simulated Body Fluid. MATERIALS 2020; 13:ma13245593. [PMID: 33302431 PMCID: PMC7762543 DOI: 10.3390/ma13245593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 01/01/2023]
Abstract
Titanium implants are commonly used in the field of dentistry for prosthetics such as crowns, bridges, and dentures. For successful therapy, an implant must bind to the surrounding bone in a process known as osseointegration. The objective for this ongoing study is to determine the potential of different implant surface coatings in providing the formation of hydroxyapatite (HA). The coatings include titanium nitride (TiN), silicon dioxide (SiO2), and quaternized titanium nitride (QTiN). The controls were a sodium hydroxide treated group, which functioned as a positive control, and an uncoated titanium group. Each coated disc was submerged in simulated body fluid (SBF), replenished every 48 h, over a period of 28 days. Each coating successfully developed a layer of HA, which was calculated through mass comparisons and observed using scanning electron microscopy (SEM) and energy dispersive analysis x-rays (EDX). Among these coatings, the quaternized titanium nitride coating seemed to have a better yield of HA. Further studies to expand the data concerning this experiment are underway.
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19
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Doymus B, Kerem G, Yazgan Karatas A, Kok FN, Önder S. A functional coating to enhance antibacterial and bioactivity properties of titanium implants and its performance in vitro. J Biomater Appl 2020; 35:655-669. [PMID: 33283583 DOI: 10.1177/0885328220977765] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bacterial infections and lack of osseointegration may negatively affect the success of titanium (Ti) implants. In the present study, a functional coating composed of chitosan (CS) microspheres and nano hydroxyapatite (nHA) was prepared to obtain antimicrobial Ti implants with enhanced bioactivity. First, the chitosan microspheres were fixed to Ti surfaces activated by alkali and heat treatment, then nHA coatings were precipitated onto these surfaces. Ciprofloxacin was loaded into the microspheres using two different procedures; encapsulation and diffusion. Scanning electron microscopy micrographs of the modified Ti surfaces showed that the coating was successfully deposited onto the Ti surfaces and stable for 30 days in PBS. The drug was completely released from free microspheres loaded by encapsulation in 21 days whereas only 89% release was observed after immobilization. The burst release also decreased from ca. 55% to ca. 35%. The release was further reduced following the nHA precipitation. The modified Ti surfaces showed antimicrobial activity based on the bacterial time-kill assay using S. aureus, but the efficiency was affected by both nHA precipitation and drug loading strategy. Highest antimicrobial activity was seen in the samples without nHA layer, and when the drug was loaded by diffusion. Fourier transform infrared spectroscopy and X-ray diffraction analyses revealed that nHA on the surface enhanced HA growth in simulated body fluid for 3 weeks, showing increased osseointegration potential. Therefore, the proposed coating may be used to prevent Ti implant failure originated from bacterial infection and/or low bioactivity.
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Affiliation(s)
- Burcu Doymus
- Department of Molecular Biology and Genetics, Istanbul Technical University, ITU, Istanbul, Turkey
| | - Gizem Kerem
- Department of Molecular Biology and Genetics, Istanbul Technical University, ITU, Istanbul, Turkey
| | - Ayten Yazgan Karatas
- Department of Molecular Biology and Genetics, Istanbul Technical University, ITU, Istanbul, Turkey
| | - Fatma Nese Kok
- Department of Molecular Biology and Genetics, Istanbul Technical University, ITU, Istanbul, Turkey
| | - Sakip Önder
- Department of Biomedical Engineering, Yildiz Technical University, Esenler, Istanbul, Turkey
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20
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Yang Z, Xi Y, Bai J, Jiang Z, Wang S, Zhang H, Dai W, Chen C, Gou Z, Yang G, Gao C. Covalent grafting of hyperbranched poly-L-lysine on Ti-based implants achieves dual functions of antibacteria and promoted osteointegration in vivo. Biomaterials 2020; 269:120534. [PMID: 33243425 DOI: 10.1016/j.biomaterials.2020.120534] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/29/2020] [Accepted: 11/03/2020] [Indexed: 12/25/2022]
Abstract
The dual functional implants of antibacteria and osteointegration are highly demanded in orthopedic and dentistry, especially for patients who suffer from diabetes or osteoporosis simultaneously. However, there is lack of the facile and robust method to produce clinically applicable implants with this dual function although coatings possessing single function have been extensively developed. Herein, hyperbranched poly-L-lysine (HBPL) polymers were covalently immobilized onto the alkali-heat treated titanium (Ti) substrates and implants by using 3-glycidyloxypropyltrimethoxysilane (GPTMS) as the coupling agent, which displayed excellent antibacterial activity against S. aureus and E. coli with an efficiency as high as 89.4% and 92.2% in vitro, respectively. The HBPL coating also significantly promoted the adhesion, spreading, proliferation and osteogenic differentiation of MC3T3-E1 cells in vitro. Furthermore, the results of a S. aureus infection rat model in vivo ulteriorly verified that the HBPL-modified screws had good antibacterial and anti-inflammatory abilities at an early stage of implantation and better osteointegration compared with the control Ti screws.
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Affiliation(s)
- Zhijian Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yue Xi
- Department of Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Jun Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhiwei Jiang
- Department of Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Shuqin Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Haolan Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wei Dai
- Department of Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Chaozhen Chen
- Department of Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, 310058, China
| | - Guoli Yang
- Department of Implantology, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, 310006, China.
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China; Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University, Hangzhou, 310058, China.
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21
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Takao S, Komasa S, Agariguchi A, Kusumoto T, Pezzotti G, Okazaki J. Effects of Plasma Treatment on the Bioactivity of Alkali-Treated Ceria-Stabilised Zirconia/Alumina Nanocomposite (NANOZR). Int J Mol Sci 2020; 21:E7476. [PMID: 33050494 PMCID: PMC7589822 DOI: 10.3390/ijms21207476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 09/27/2020] [Accepted: 10/06/2020] [Indexed: 11/16/2022] Open
Abstract
Zirconia ceramics such as ceria-stabilized zirconia/alumina nanocomposites (nano-ZR) are applied as implant materials due to their excellent mechanical properties. However, surface treatment is required to obtain sufficient biocompatibility. In the present study, we explored the material surface functionalization and assessed the initial adhesion of rat bone marrow mesenchymal stem cells, their osteogenic differentiation, and production of hard tissue, on plasma-treated alkali-modified nano-ZR. Superhydrophilicity was observed on the plasma-treated surface of alkali-treated nano-ZR along with hydroxide formation and reduced surface carbon. A decreased contact angle was also observed as nano-ZR attained an appropriate wettability index. Treated samples showed higher in vitro bovine serum albumin (BSA) adsorption, initial adhesion of bone marrow and endothelial vascular cells, high alkaline phosphatase activity, and increased expression of bone differentiation-related factors. Furthermore, the in vivo performance of treated nano-ZR was evaluated by implantation in the femur of male Sprague-Dawley rats. The results showed that the amount of bone formed after the plasma treatment of alkali-modified nano-ZR was higher than that of untreated nano-ZR. Thus, induction of superhydrophilicity in nano-ZR via atmospheric pressure plasma treatment affects bone marrow and vascular cell adhesion and promotes bone formation without altering other surface properties.
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Affiliation(s)
- Seiji Takao
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1 Kuzuha-hanazono-cho, Hirakata, Osaka 573-1121, Japan; (S.T.); (A.A.); (J.O.)
| | - Satoshi Komasa
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1 Kuzuha-hanazono-cho, Hirakata, Osaka 573-1121, Japan; (S.T.); (A.A.); (J.O.)
| | - Akinori Agariguchi
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1 Kuzuha-hanazono-cho, Hirakata, Osaka 573-1121, Japan; (S.T.); (A.A.); (J.O.)
| | - Tetsuji Kusumoto
- Department of Japan Faculty of Health Sciences, Osaka Dental University, 1-4-4, Makino-honmachi, Hirakata-shi, Osaka 573-1121, Japan;
| | - Giuseppe Pezzotti
- Ceramic Physics Laboratory and Research Institute for Nanoscience, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8585, Japan;
| | - Joji Okazaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1 Kuzuha-hanazono-cho, Hirakata, Osaka 573-1121, Japan; (S.T.); (A.A.); (J.O.)
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Umehara H, Doi K, Oki Y, Kobatake R, Makihara Y, Kubo T, Tsuga K. Development of a novel bioactive titanium membrane with alkali treatment for bone regeneration. Dent Mater J 2020; 39:877-882. [PMID: 32448849 DOI: 10.4012/dmj.2019-222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluates a bioactive titanium membrane with alkali treatment for stimulating apatite formation and promoting bone regeneration. The titanium thin membranes were either treated with NaOH (alkali-group) or untreated (control). Each sample were incubated in simulated body fluid. Subsequently, the composition of the surface calcium deposition, its weight increase ratio, and optical absorbance were evaluated. Then, the bone defect was trephined on the rats calvaria and covered with each sample membrane or no membrane, and the bone tissue area ratio (BTA) and bone membrane contact ratio (BMC) were evaluated. The spherical crystalline precipitates formed in both groups. In the alkali-group after 21 days, the precipitates matured, forming apatite-like precipitates. The alkali-group showed higher Ca and P contents and weight increase ratios than the control. The alkali-group exhibited a higher BMC than the control in the central area. Thus, this novel membrane has high apatite-forming and bone regeneration abilities.
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Affiliation(s)
- Hanako Umehara
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
| | - Kazuya Doi
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
| | - Yoshifumi Oki
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
| | - Reiko Kobatake
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
| | - Yusuke Makihara
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
| | - Takayasu Kubo
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical Sciences
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Lu M, Chen H, Yuan B, Zhou Y, Min L, Xiao Z, Zhu X, Tu C, Zhang X. Electrochemical Deposition of Nanostructured Hydroxyapatite Coating on Titanium with Enhanced Early Stage Osteogenic Activity and Osseointegration. Int J Nanomedicine 2020; 15:6605-6618. [PMID: 32982221 PMCID: PMC7490093 DOI: 10.2147/ijn.s268372] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/26/2020] [Indexed: 02/05/2023] Open
Abstract
Purpose The aim of research is to fabricate nanostructured hydroxyapatite (HA) coatings on the titanium via electrochemical deposition (ED). Additionally, the biological properties of the ED-produced HA (EDHA) coatings with a plate-like nanostructure were evaluated in vitro and in vivo by undertaking comparisons with those prepared by acid/alkali (AA) treatment and by plasma spray-produced HA (PSHA) nanotopography-free coatings. Materials and Methods Nanoplate-like HA coatings were prepared through ED, and nanotopography-free PSHA coatings were fabricated. The surface morphology, phase composition, roughness, and wettability of these samples were investigated. Furthermore, the growth, proliferation, and osteogenic differentiation of MC3T3-E1 cells cultured on each sample were evaluated via in vitro experiments. Histological assessment and push-out tests for the bone–implant interface were performed to explore the effect of the EDHA coatings on the interfacial osseointegration in vivo. Results XRD analysis showed that the strongest intensity for the EDHA coatings was at the (002) plane rather than at the regular (211) plane. Relatively higher surface roughness and greater wettability were observed for the EDHA coatings. Cellular experiments revealed that the plate-like nanostructured EDHA coatings not only possessed an ability, similar to that of PSHA coatings, to promote the adhesion and proliferation of MC3T3-E1 cells but also demonstrated significantly enhanced early or intermediate markers of osteogenic differentiation. Significant osseointegration enhancement in the early stage of implantation period and great bonding strength were observed at the interface of bone and EDHA samples. In comparison, relatively weak osseointegration and bonding strength of the bone–implant interface were observed for the AA treatment. Conclusion The biological performance of the plate-like nanostructured EDHA coating, which was comparable with that of the PSHA, improves early-stage osteogenic differentiation and osseointegration abilities and has great potential for enhancing the initial stability and long-term survival of uncemented or 3D porous titanium implants.
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Affiliation(s)
- Minxun Lu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Hongjie Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Bo Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Yong Zhou
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Li Min
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
| | - Chongqi Tu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China
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Zhu S, Zhu Y, Wang Z, Liang C, Cao N, Yan M, Gao F, Liu J, Wang W. Bioinformatics analysis and identification of circular RNAs promoting the osteogenic differentiation of human bone marrow mesenchymal stem cells on titanium treated by surface mechanical attrition. PeerJ 2020; 8:e9292. [PMID: 32742764 PMCID: PMC7365136 DOI: 10.7717/peerj.9292] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND To analyze and identify the circular RNAs (circRNAs) involved in promoting the osteogenic differentiation of human bone mesenchymal stem cells (hBMSCs) on titanium by surface mechanical attrition treatment (SMAT). METHODS The experimental material was SMAT titanium and the control material was annealed titanium. Cell Counting Kits-8 (CCK-8) was used to detect the proliferation of hBMSCs, and alkaline phosphatase (ALP) activity and alizarin red staining were used to detect the osteogenic differentiation of hBMSCs on the sample surfaces. The bioinformatics prediction software miwalk3.0 was used to construct competing endogenous RNA (ceRNA) networks by predicting circRNAs with osteogenesis-related messenger RNAs (mRNAs) and microRNAs (miRNAs). The circRNAs located at the key positions in the networks were selected and analyzed by quantitative real-time PCR (QRT-PCR). RESULTS Compared with annealed titanium, SMAT titanium could promote the proliferation and osteogenic differentiation of hBMSCs. The total number of predicted circRNAs was 51. Among these, 30 circRNAs and 8 miRNAs constituted 6 ceRNA networks. Circ-LTBP2 was selected for verification. QRT-PCR results showed that the expression levels of hsa_circ_0032599, hsa_circ_0032600 and hsa_circ_0032601 were upregulated in the experimental group compared with those in the control group; the differential expression of hsa_circ_0032600 was the most obvious and statistically significant, with a fold change (FC) = 4.25 ± 1.60, p-values (p) < 0.05.
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Affiliation(s)
- Shanshan Zhu
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Yuhe Zhu
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Zhenbo Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, China
| | - Chen Liang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, China
| | - Nanjue Cao
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Ming Yan
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Fei Gao
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Jie Liu
- Department 1 of Science Experiment Center, China Medical University, Shenyang, Liaoning, China
| | - Wei Wang
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
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Geng Z, Yu Y, Li Z, Ma L, Zhu S, Liang Y, Cui Z, Wang J, Yang X, Liu C. miR-21 promotes osseointegration and mineralization through enhancing both osteogenic and osteoclastic expression. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110785. [DOI: 10.1016/j.msec.2020.110785] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 01/02/2020] [Accepted: 02/26/2020] [Indexed: 01/08/2023]
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Fu X, Zhou X, Liu P, Chen H, Xiao Z, Yuan B, Yang X, Zhu X, Zhang K, Zhang X. The optimized preparation of HA/L-TiO 2/D-TiO 2 composite coating on porous titanium and its effect on the behavior osteoblasts. Regen Biomater 2020; 7:505-514. [PMID: 33149939 PMCID: PMC7597800 DOI: 10.1093/rb/rbaa013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/24/2020] [Accepted: 03/07/2020] [Indexed: 02/07/2023] Open
Abstract
Various surface bioactivation technology has been confirmed to improve the osteogenic ability of porous titanium (pTi) implants effectively. In this study, a three-layered composite coating, i.e. outer layer of hydroxyapatite (HA), middle layer of loose titanium dioxide (L-TiO2) and inner layer of dense TiO2 (D-TiO2), was fabricated on pTi by a combined processing procedure of pickling, alkali heat (AH), anodic oxidation (AO), electrochemical deposition (ED) and hydrothermal treatment (HT). After soaking in simulated body fluid for 48 h, the surface of the AHAOEDHT-treated pTi was completely covered by a homogeneous apatite layer. Using MC3T3-E1 pro-osteoblasts as cell model, the cell culture revealed that both the pTi without surface treatment and the AHAOEDHT sample could support the attachment, growth and proliferation of the cells. Compared to the pTi sample, the AHAOEDHT one induced higher expressions of osteogenesis-related genes in the cells, including alkaline phosphatase, Type I collagen, osteopontin, osteoclast inhibitor, osteocalcin and zinc finger structure transcription factor. As thus, besides the good corrosion resistance, the HA/L-TiO2/D-TiO2-coated pTi had good osteogenic activity, showing good potential in practical application for bone defect repair.
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Affiliation(s)
- Xi Fu
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Xingyu Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Pin Liu
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Hewei Chen
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Bo Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Kai Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, No. 29, Wangjiang Road, Chengdu 610064, China
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Kobatake R, Doi K, Oki Y, Makihara Y, Umehara H, Kubo T, Tsuga K. Comparative Study of Surface Modification Treatment for Porous Titanium. J Oral Maxillofac Res 2020; 11:e5. [PMID: 32760478 PMCID: PMC7393927 DOI: 10.5037/jomr.2020.11205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/04/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVES This study was to investigate suitable surface treatment methods for porous titanium by ex vivo study of material properties and calcium phosphate deposition in simulated body fluid. MATERIAL AND METHODS Porous titanium with acid (H2SO4 and HCl mixed acid) or alkali (NaOH) treatment was prepared. The surfaces were observed, and the weight change ratio (after and before surface treatment) and compression strength were measured. To investigate the apatite formation ability, each sample was immersed in simulated body fluid (SBF). Surface observations were performed, and the weight change ratio (before/after immersing SBF) and calcification (by alizarin red staining) were measured. RESULTS The acid group showed a martensitic micro-scale rough structure and the weight and mechanical strength greatly decreased compared to the other groups. The alkali group exhibited a nano-scale roughness structure with similar weight and mechanical strength. Following immersion in SBF, an apatite-like crystal layer in the alkali group was observed. The weight of all samples increased. The change in weight of the samples in the alkali, acid, and control groups were significantly different, showing the following trend: alkali group (1.6%) > acid group (1.2%) > control group (0.8%). Calcium precipitation values were higher in the samples from alkali group than in those from the acid and control groups. CONCLUSIONS Alkali treatment was found to be a suitable surface modification method for porous titanium, resulting in good mechanical strength and apatite formation ability in simulated body fluid.
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Affiliation(s)
- Reiko Kobatake
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
| | - Kazuya Doi
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
| | - Yoshifumi Oki
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
| | - Yusuke Makihara
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
| | - Hanako Umehara
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
| | - Takayasu Kubo
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, HiroshimaJapan.
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He X, Zhang G, Pei Y, Zhang H. Layered hydroxide/polydopamine/hyaluronic acid functionalized magnesium alloys for enhanced anticorrosion, biocompatibility and antithrombogenicity in vascular stents. J Biomater Appl 2020; 34:1131-1141. [PMID: 31903832 DOI: 10.1177/0885328219899233] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Magnesium alloys are promising cardiovascular stent materials due to the favourable physical properties and complete biodegradability in vivo. However, the rapid degradation, poor cytocompatibility and tendency of thrombogenesis hinder practical clinical applications. In order to solve these problems, a facile and highly efficient strategy of alkali treatment combined with subsequent layer-by-layer assembly was used to fabricate a multifunctional coating. A bottom layer hydroxyl (–OH) with negative charge after alkali treatment first formed a solid bond with magnesium matrix to provide a rough outer surface for the further immobilization of functional biomolecules. Afterwards, polydopamine and hyaluronic acid were successively immobilized on alkali-treated magnesium surface via strong electrostatic adsorption and covalent bonding between carboxyl group of hyaluronic acid and amine or hydroxyl of polydopamine to form magnesium/OH/polydopamine/hyaluronic acid. Hydroxyl significantly improves the corrosion resistance while polydopamine and hyaluronic acid layers act as a further barrier to provide better anticorrosion. A balance between biocompatibility and antithrombogenicity has been achieved by adjusting the content of hyaluronic acid on polydopamine surface. The multifunctional magnesium/OH/polydopamine/hyaluronic acid coating with lower hyaluronic acid concentrations expose more active sites of polydopamine molecules to promote endothelial cell proliferation while retaining the intrinsic antithrombogenic function of hyaluronic acid to offer a potential application for vascular stents.
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Affiliation(s)
| | - Guannan Zhang
- Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Yuliang Pei
- Taiyuan University of Technology, Taiyuan, Shanxi, China
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Kaur M, Singh K. Review on titanium and titanium based alloys as biomaterials for orthopaedic applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:844-862. [PMID: 31147056 DOI: 10.1016/j.msec.2019.04.064] [Citation(s) in RCA: 369] [Impact Index Per Article: 73.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/20/2019] [Accepted: 04/20/2019] [Indexed: 02/07/2023]
Abstract
Variety of implant materials have been employed in various disciplines of medical science depending on the requirement of a particular application. Metals, alloys, ceramics, and polymers are the commonly used biomaterials. The main focus of this study is to review the various structural and microstructural properties of titanium and titanium based alloys used as orthopaedic implants. Orthopaedic implants need to possess certain important qualities to ensure their safe and effective use. These properties like the biocompatibility, relevant mechanical properties, high corrosion and wear resistance and osseointegration are summarized in this review. Various attempts to improve upon these properties like different processing routes, surface modifications have also been inculcated in the paper to provide an insight into the extent of research and effort that has been put into developing a highly superior titanium orthopaedic implant.
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Affiliation(s)
- Manmeet Kaur
- School of Physics and Materials Science, Thapar Institute of Engineering and Technology, Patiala, Punjab 147004, India
| | - K Singh
- School of Physics and Materials Science, Thapar Institute of Engineering and Technology, Patiala, Punjab 147004, India.
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30
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Zhou X, Fu X, Chen H, Xiao Z, Min L, Zhou Y, Zhu X, Zhang K, Tu C, Zhang X. Evaluation and regulation of the corrosion resistance of macroporous titanium scaffolds with bioactive surface films for biomedical applications. J Mater Chem B 2019. [DOI: 10.1039/c8tb03359e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A three-layer bioactive film on porous titanium was constructed and evaluated for its corrosion resistance via electrochemical analysis.
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Affiliation(s)
- Xingyu Zhou
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xi Fu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Hongjie Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Li Min
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Yong Zhou
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Kai Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Chongqi Tu
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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Zhang M, Wang X, Huang X, Wang Y, Hang R, Zhang X, Yao X, Tang B. A high current anodization to fabricate a nano-porous structure on the surface of Ti-based implants. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 30:2. [PMID: 30564954 DOI: 10.1007/s10856-018-6206-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
In this study, an oxide layer on Ti-based implants is fabricated by using a high current anodization (HCA) technique in the nitrate electrolyte. This layer is composed of micro-pits and nano-porous arrays in the honeycomb structure. The results show that both the roughness and the layer thickness are related to the reaction time, whereas the size of nano-pores has little to do with the anodization duration. Compared to the nano-tubular arrays constructed by the conventional anodization, this nano-porous layer shows significantly improved mechanical stability. Furthermore, the in vitro assay of osteoblasts shows that cells behaviors on this surface can be modulated by the topology of this special layer. A suitable hierarchical structure composed of micro-pits and nano-porous structure can significantly stimulate osteoblasts attachment, activity, spreading and ALP function. Therefore, this hierarchical surface layer may provide a promising approach, which endows the Ti-based implants with better stability and osseointegration.
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Affiliation(s)
- Meng Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xuejiu Wang
- Department of Oral and Maxillofacial Plastic and Trauma Surgery, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Xiaobo Huang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Yongkang Wang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Ruiqiang Hang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xiangyu Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xiaohong Yao
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Bin Tang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
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Zhang X, Zhang G, Zhang H, Li J, Yao X, Tang B. Surface immobilization of heparin and chitosan on titanium to improve hemocompatibility and antibacterial activities. Colloids Surf B Biointerfaces 2018; 172:338-345. [DOI: 10.1016/j.colsurfb.2018.08.060] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/20/2018] [Accepted: 08/27/2018] [Indexed: 12/15/2022]
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Rasouli R, Barhoum A, Uludag H. A review of nanostructured surfaces and materials for dental implants: surface coating, patterning and functionalization for improved performance. Biomater Sci 2018; 6:1312-1338. [PMID: 29744496 DOI: 10.1039/c8bm00021b] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The emerging field of nanostructured implants has enormous scope in the areas of medical science and dental implants. Surface nanofeatures provide significant potential solutions to medical problems by the introduction of better biomaterials, improved implant design, and surface engineering techniques such as coating, patterning, functionalization and molecular grafting at the nanoscale. This review is of an interdisciplinary nature, addressing the history and development of dental implants and the emerging area of nanotechnology in dental implants. After a brief introduction to nanotechnology in dental implants and the main classes of dental implants, an overview of different types of nanomaterials (i.e. metals, metal oxides, ceramics, polymers and hydrides) used in dental implant together with their unique properties, the influence of elemental compositions, and surface morphologies and possible applications are presented from a chemical point of view. In the core of this review, the dental implant materials, physical and chemical fabrication techniques and the role of nanotechnology in achieving ideal dental implants have been discussed. Finally, the critical parameters in dental implant design and available data on the current dental implant surfaces that use nanotopography in clinical dentistry have been discussed.
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Affiliation(s)
- Rahimeh Rasouli
- Department of Medical Nanotechnology, International Campus, Tehran University of Medical Sciences, Tehran, Iran.
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He Y, Zhang Y, Shen X, Tao B, Liu J, Yuan Z, Cai K. The fabrication and in vitro properties of antibacterial polydopamine-LL-37-POPC coatings on micro-arc oxidized titanium. Colloids Surf B Biointerfaces 2018; 170:54-63. [DOI: 10.1016/j.colsurfb.2018.05.070] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/19/2018] [Accepted: 05/31/2018] [Indexed: 12/30/2022]
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Oliveira WF, Silva GM, Cabral Filho PE, Fontes A, Oliveira MD, Andrade CA, Silva MV, Coelho LC, Machado G, Correia MT. Titanium dioxide nanotubes functionalized with Cratylia mollis seed lectin, Cramoll, enhanced osteoblast-like cells adhesion and proliferation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:664-672. [DOI: 10.1016/j.msec.2018.04.089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 04/13/2018] [Accepted: 04/30/2018] [Indexed: 01/07/2023]
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Nasiri N, Mukherjee S, Panneerselvan A, Nisbet DR, Tricoli A. Optimally Hierarchical Nanostructured Hydroxyapatite Coatings for Superior Prosthesis Biointegration. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24840-24849. [PMID: 29969013 DOI: 10.1021/acsami.8b08029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bone osteogenesis is a complex phenomenon dependent on numerous microenvironmental cues, with their synchrony regulating cellular functions, such as mechanical signaling, survival, proliferation, and differentiation, as well as controlled regional specification of skeletal progenitor cell fate. Therefore, obtaining a mechanistic understanding of cellular response to a microenvironment is now coming into intense focus, which will facilitate the design of programmable biomaterials for regenerative medicine. State-of-the-art nanomaterial synthesis and self-assembly processes yield complex structures that mimic surface properties, composition, and partially the morphology of the extracellular matrix. However, determining key structural properties that control cell attachment has been challenging and contradictory results are reported regarding the mechanisms and roll of nanostructured materials. Here, we significantly improve osteogenesis on bioinert substrates, demonstrating an exemplary organic-inorganic interface for superior prosthesis biointegration. We identify critical microscale hierarchical features that drastically enhance the cellular response to the same nanoscale architecture. It was observed that hierarchical morphologies, with a porosity above 80%, promote early-stage osteoinduction, as indicated by extensive coating ingrowth and nanofilopodia formation. We determined that cellular integration was mediated by two-way recognition of specific nano- and microtopographical cues between the host tissue and cellular microenvironment. This has allowed us to detail a set of determinant features for the nanofabrication of advanced prosthesis coatings that may ultimately improve implant longevity.
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Affiliation(s)
- Noushin Nasiri
- Institute for Biomedical Materials and Devices, Faculty of Science , University of Technology Sydney , Sydney , NSW 2007 , Australia
| | - Shayanti Mukherjee
- The Ritchie Centre , Hudson Institute of Medical Research , Clayton 3168 , Australia
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Histological and Bone Morphometric Evaluation of Osseointegration Aspects by Alkali Hydrothermally-Treated Implants. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8040635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Tavakoli J, Khosroshahi ME. Surface morphology characterization of laser-induced titanium implants: lesson to enhance osseointegration process. Biomed Eng Lett 2018; 8:249-257. [PMID: 30603208 DOI: 10.1007/s13534-018-0063-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/05/2018] [Accepted: 03/18/2018] [Indexed: 12/27/2022] Open
Abstract
The surface properties of implant are responsible to provide mechanical stability by creating an intimate bond between the bone and implant; hence, play a major role on osseointegration process. The current study was aimed to measure surface characteristics of titanium modified by a pulsed Nd:YAG laser. The results of this study revealed an optimum density of laser energy (140 Jcm-2), at which improvement of osteointegration process was seen. Significant differences were found between arithmetical mean height (Ra), root mean square deviation (Rq) and texture orientation, all were lower for 140 Jcm-2 samples compared to untreated one. Also it was identified that the surface segments were more uniformly distributed with a more Gaussian distribution for treated samples at 140 Jcm-2. The distribution of texture orientation at high laser density (250 and 300 Jcm-2) were approximately similar to untreated sample. The skewness index that indicates how peaks and valleys are distributed throughout the surface showed a positive value for laser treated samples, compared to untreated one. The surface characterization revealed that Kurtosis index, which tells us how high or flat the surface profile is, for treated sample at 140 Jcm-2 was marginally close to 3 indicating flat peaks and valleys in the surface profile.
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Affiliation(s)
- Javad Tavakoli
- 1Biomechanics and Implants Research Group, The Medical Device Research Institute, College of Science and Engineering, Flinders University, GPO Box 2100, Adelaide, SA 5001 Australia
| | - Mohammad E Khosroshahi
- 2Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8 Canada
- MIS-Electronics, Nanobiophotonics and Biomedical Research Lab, Richmond Hill, ON L4B 1B4 Canada
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Zhang Y, Liu X, Li Z, Zhu S, Yuan X, Cui Z, Yang X, Chu PK, Wu S. Nano Ag/ZnO-Incorporated Hydroxyapatite Composite Coatings: Highly Effective Infection Prevention and Excellent Osteointegration. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1266-1277. [PMID: 29227620 DOI: 10.1021/acsami.7b17351] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Interfacial characteristics play an important role in infection prevention and osteointegration of artificial bone implants. In this work, both Ag nanoparticles (AgNPs) and ZnO NPs are incorporated into hydroxyapatite (HA) nanopowders and deposited onto Ti6Al4V (Ti6) implants by laser cladding. The composite coatings possess a hierarchical surface structure with homogeneous distributions of Ag and ZnO. The Ag and ZnO NPs that are immobilized by laser cladding ensure long-term and gradual release of Ag and Zn ions at low cumulative concentrations of 36.2 and 56.4 μg/L after immersion for 21 days. A large concentration of Ag released initially increases the cytotoxicity but the large initial ZnO content enhances the cell viability and osteogenetic ability. The nano Ag/ZnO-embedded HA coating (Ag/ZnO/HA = 7:3:90 wt %, namely Ag7ZnO3HA) exhibits optimal antibacterial efficacy and osteogenetic capability, as exemplified by the broad spectrum antibacterial efficacy of 96.5 and 85.8% against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), respectively, together with enhanced osteoinductivity with higher alkaline phosphatase (ALP) activity of 134.60 U/g protein compared to 70.79 U/g protein for the untreated implants after culturing for 7 days. The rabbit femoral implant model further confirms that the optimized composite coating accelerates the formation of new bone tissues indicating 87.15% of the newly formed bone area and osteointegration showing 83.75% of the bone-implant contact area even in the presence of injected S. aureus. The laser-cladded Ag7ZnO3HA composite coatings are promising metallic implants with excellent intrinsic antibacterial activity and osteointegration ability.
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Affiliation(s)
- Yanzhe Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
| | - Xiangmei Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Xubo Yuan
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Xianjin Yang
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
| | - Paul K Chu
- Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Shuilin Wu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science & Engineering, Hubei University , Wuhan 430062, China
- School of Materials Science & Engineering, Tianjin University , Tianjin 300072, China
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Dorati R, DeTrizio A, Modena T, Conti B, Benazzo F, Gastaldi G, Genta I. Biodegradable Scaffolds for Bone Regeneration Combined with Drug-Delivery Systems in Osteomyelitis Therapy. Pharmaceuticals (Basel) 2017; 10:E96. [PMID: 29231857 PMCID: PMC5748651 DOI: 10.3390/ph10040096] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 12/31/2022] Open
Abstract
A great deal of research is ongoing in the area of tissue engineering (TE) for bone regeneration. A possible improvement in restoring damaged tissues involves the loading of drugs such as proteins, genes, growth factors, antibiotics, and anti-inflammatory drugs into scaffolds for tissue regeneration. This mini-review is focused on the combination of the local delivery of antibiotic agents with bone regenerative therapy for the treatment of a severe bone infection such as osteomyelitis. The review includes a brief explanation of scaffolds for bone regeneration including scaffolds characteristics and types, a focus on severe bone infections (especially osteomyelitis and its treatment), and a literature review of local antibiotic delivery by the combination of scaffolds and drug-delivery systems. Some examples related to published studies on gentamicin sulfate-loaded drug-delivery systems combined with scaffolds are discussed, and future perspectives are highlighted.
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Affiliation(s)
- Rossella Dorati
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
- Center of Health Technology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy.
| | - Antonella DeTrizio
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| | - Tiziana Modena
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
- Center of Health Technology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy.
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
- Center of Health Technology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy.
| | - Francesco Benazzo
- Center of Health Technology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy.
- Centre oh Health Technology (CHT), Via Ferrata 1, University of Pavia, 27100 Pavia, Italy.
| | - Giulia Gastaldi
- Centre oh Health Technology (CHT), Via Ferrata 1, University of Pavia, 27100 Pavia, Italy.
- Department of Molecular Medicine, University of Pavia, Viale Taramelli 2, 27100 Pavia, Italy.
| | - Ida Genta
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
- Center of Health Technology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy.
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Investigation of Effective Modification Treatments for Titanium Membranes. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7101022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kusumoto T, Yin D, Zhang H, Chen L, Nishizaki H, Komasa Y, Okazaki J, Komasa S. Evaluation of the Osteointegration of a Novel Alkali-Treated Implant System In Vivo. J HARD TISSUE BIOL 2017. [DOI: 10.2485/jhtb.26.355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Tetsuji Kusumoto
- Faculty of Health Sciences Department of Oral Health Engineering, Osaka Dental University
| | - Derong Yin
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Honghao Zhang
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Luyuan Chen
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Hiroshi Nishizaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Yutaka Komasa
- Faculty of Health Sciences Department of Oral Health Engineering, Osaka Dental University
| | - Joji Okazaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
| | - Satoshi Komasa
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University
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Wang L, Zhou B, Huang X, Dong L, Cheng K, Weng W. Cell responses on a H2Ti3O7 nanowire film. RSC Adv 2017. [DOI: 10.1039/c7ra06029g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cell morphologies on H2Ti3O7 nanowire film and anatase nanowire film.
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Affiliation(s)
- Liming Wang
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Beibei Zhou
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaoxiao Huang
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Lingqing Dong
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Kui Cheng
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Wenjian Weng
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
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