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Weiss KM, Kucko SK, Mokhtari S, Keenan TJ, Wren AW. Investigating the structure, solubility, and antibacterial properties of silver- and copper-doped hydroxyapatite. J Biomed Mater Res B Appl Biomater 2023; 111:295-313. [PMID: 36054459 DOI: 10.1002/jbm.b.35151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 06/27/2022] [Accepted: 08/17/2022] [Indexed: 12/15/2022]
Abstract
Hydroxyapatite (HA) powders were synthesized by the wet precipitation method in which two experimental compositions were synthesized (10 mol% Ag-HA and Cu-HA) where the CaNO3 content was partially substituted with AgNO3 and Cu(NO3 )2 . X-ray diffraction (XRD) was employed to characterize changes to the HA structure as the dopants (Cu2+ , Ag+ ) were incorporated into the materials structure. Energy-dispersive X-ray spectroscopy (EDS) determined confirmed the compositions and found that the Ca/P ratio was 1.63 for the control (HA) while Ag-HA and Cu-HA exhibited (X + Ca)/P ratios of 1.79 and 1.65, respectively. Antibacterial efficacies were evaluated against E. coli and S. aureus, as a function of surface area and incubation time. The more prominent antibacterial effects were observed with both Ag-HA and Cu-HA and the materials antibacterial influence was maintained with respect to time. Ion release studies of each HA composition (15, 30, and 45 days) showed that Cu-HA released significantly more Cu2+ (36.1 ± 5.1 mg/L) than Ag+ (2.9 ± 1.2 mg/L) from Ag-HA. Analysis of each composition incubated in simulated body fluid (SBF) exhibited surface depositions that are likely calcium phosphate (CaP). Cytocompatibility testing in MC 3T3 Osteoblasts showed slight reductions in cell viability when tested using MTT assay, however cell adhesion studies were positive for each composition.
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Affiliation(s)
- Katie M Weiss
- Inamori School of Engineering, Alfred University, Alfred, New York, USA
| | - Sierra K Kucko
- Inamori School of Engineering, Alfred University, Alfred, New York, USA
| | - Sahar Mokhtari
- Inamori School of Engineering, Alfred University, Alfred, New York, USA
| | - Timothy J Keenan
- Inamori School of Engineering, Alfred University, Alfred, New York, USA
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Hanawa T. Biocompatibility of titanium from the viewpoint of its surface. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2022; 23:457-472. [PMID: 35990790 PMCID: PMC9389932 DOI: 10.1080/14686996.2022.2106156] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Among metals, Ti and majority of its alloys exhibit excellent biocompatibility or tissue compatibility. Although their high corrosion resistance is a factor in the biocompatibility of Ti and Ti alloys, it is clear that other factors exist. In this review, the corrosion resistance and passive film of Ti are compared to those of other metallic biomaterials, and their band gap energies, Egs, are compared to discuss the role of Eg in the reactivity with living tissues. From the perspective of the material's surface, it is possible to explain the excellent biocompatibility of Ti by considering the following factors: Ti ions are immediately stabilized not to show toxicity if it is released to body fluids; good balance of positive and negative charges by the dissociation of surface hydroxyl groups on the passive film; low electrostatic force of the passive film inducing a natural adsorption of proteins maintaining their natural conformation; strong property as n-type semiconductor; lower band gap energy of the passive film on Ti generating optimal reactivity; and calcium phosphate formation is caused by this reactivity. The results suggest that due to the passive oxide film, the optimal balance between high corrosion resistance and appropriate reactivity of Ti is the predominate solution for the excellent biocompatibility of Ti.
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Affiliation(s)
- Takao Hanawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
- Center for Advanced Medical Engineering Research and Development, Kobe University, Kobe, Japan
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka, Japan
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Ranathunga DTS, Arteaga A, Biguetti CC, Rodrigues DC, Nielsen SO. Molecular-Level Understanding of the Influence of Ions and Water on HMGB1 Adsorption Induced by Surface Hydroxylation of Titanium Implants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10100-10114. [PMID: 34370950 DOI: 10.1021/acs.langmuir.1c01444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Due to its excellent chemical and mechanical properties, titanium has become the material of choice for orthopedic and dental implants to promote rehabilitation via bone anchorage and osseointegration. Titanium osseointegration is partially related to its capability to form a TiO2 surface layer and its ability to interact with key endogenous proteins immediately upon implantation, establishing the first bone-biomaterial interface. Surgical trauma caused by implantation results in the release of high-mobility group box 1 (HMGB1) protein, which is a prototypic DAMP (damage-associated molecular pattern) with multiple roles in inflammation and tissue healing. To develop different surface strategies that improve the clinical outcome of titanium-based implants by controlling their biological activity, a molecular-scale understanding of HMGB1-surface interactions is desired. Here, we use molecular dynamics (MD) computer simulations to provide direct insight into the HMGB1 interactions and the possible molecular arrangements of HMGB1 on fully hydroxylated and nonhydroxylated rutile (110) TiO2 surfaces. The results establish that HMGB1 is most likely to be adsorbed directly onto the surface regardless of surface hydroxylation, which is undesirable because it could affect its biological activity by causing structural changes to the protein. The hydroxylated TiO2 surface shows a greater affinity for HMGB1 than the nonhydroxylated surface. The water layer on the nonhydroxylated TiO2 surface prevents ions and the protein from directly contacting the surface. However, it was observed that if the ionic strength increases, the total number of ions adsorbed on the two surfaces increases and the protein's direct adsorption ability decreases. These findings will help to understand the HMGB1-TiO2 interactions upon implantation as well as the development of different surface strategies by introducing ions or ionic materials to the titanium implant surface to modulate its interactions with HMGB1 to preserve biological function.
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Affiliation(s)
- Dineli T S Ranathunga
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Alexandra Arteaga
- Department of Bioengineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Claudia C Biguetti
- Department of Bioengineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Danieli C Rodrigues
- Department of Bioengineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Steven O Nielsen
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
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Groeger S, Meyle J. Reactivity of Titanium Dental Implant Surfaces in Simulated Body Fluid. ACS APPLIED BIO MATERIALS 2021; 4:5575-5584. [PMID: 35006737 DOI: 10.1021/acsabm.1c00395] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Osseointegration of titanium (Ti) implants in bone is crucial for dental implant treatment. Bacterial challenge possibly leading to peri-implantitis threatens long-term success. For the improvement of osseointegration, an understanding of materials and tissue intervention is needed. This in vitro study analyzed changes of different implant surfaces exposed to simulated body fluid (SBF). Implants were analyzed by scanning electron microscopy/X-ray photoelectron spectroscopy. Supernatants (SNs) were assessed using inductively coupled plasma-mass spectrometry (ICP-MS). Additional calcium (Ca) and phosphate (P) crystals developed (Hank's buffered salt solution (HBSS)) on implants with layered surfaces. ICP of SN demonstrated a decreased Ca/P ratio. After incubation with human serum (HS), layers appeared flattened containing <1% Ca/P. The etched/machined implants showed the formation of a surface transformation layer or coating consisting of crystalline Ca/P precipitations and a decrease in the Ca/P ratio in the supernatant. Incubation in HS induced noncrystalline coverage, and increased Ti/Ca/P was detected in supernatants. HBSS induced crystals on surfaces of modified implants and crystalline covers on nonmodified implants containing Ca/P. The serum did not show the development of HA-like structures but showed dissolving effects. Titanium surfaces show completely altered behavior when incubated in serum-containing SBF.
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Affiliation(s)
- Sabine Groeger
- Dental School, Department of Periodontology, Justus-Liebig University Giessen, Schlangenzahl 14, 35392 Giessen, Germany
| | - Joerg Meyle
- Dental School, Department of Periodontology, Justus-Liebig University Giessen, Schlangenzahl 14, 35392 Giessen, Germany
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Revealing Inflammatory Indications Induced by Titanium Alloy Wear Debris in Periprosthetic Tissue by Label-Free Correlative High-Resolution Ion, Electron and Optical Microspectroscopy. MATERIALS 2021; 14:ma14113048. [PMID: 34205030 PMCID: PMC8199876 DOI: 10.3390/ma14113048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/25/2021] [Accepted: 05/31/2021] [Indexed: 01/14/2023]
Abstract
The metallic-associated adverse local tissue reactions (ALTR) and events accompanying worn-broken implant materials are still poorly understood on the subcellular and molecular level. Current immunohistochemical techniques lack spatial resolution and chemical sensitivity to investigate causal relations between material and biological response on submicron and even nanoscale. In our study, new insights of titanium alloy debris-tissue interaction were revealed by the implementation of label-free high-resolution correlative microscopy approaches. We have successfully characterized its chemical and biological impact on the periprosthetic tissue obtained at revision surgery of a fractured titanium-alloy modular neck of a patient with hip osteoarthritis. We applied a combination of photon, electron and ion beam micro-spectroscopy techniques, including hybrid optical fluorescence and reflectance micro-spectroscopy, scanning electron microscopy (SEM), Energy-dispersive X-ray Spectroscopy (EDS), helium ion microscopy (HIM) and micro-particle-induced X-ray emission (micro-PIXE). Micron-sized wear debris were found as the main cause of the tissue oxidative stress exhibited through lipopigments accumulation in the nearby lysosome. This may explain the indications of chronic inflammation from prior histologic examination. Furthermore, insights on extensive fretting and corrosion of the debris on nm scale and a quantitative measure of significant Al and V release into the tissue together with hydroxyapatite-like layer formation particularly bound to the regions with the highest Al content were revealed. The functional and structural information obtained at molecular and subcellular level contributes to a better understanding of the macroscopic inflammatory processes observed in the tissue level. The established label-free correlative microscopy approach can efficiently be adopted to study any other clinical cases related to ALTR.
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Hiji A, Hanawa T, Yokoi T, Chen P, Ashida M, Kawashita M. Time Transient of Calcium and Phosphate Ion Adsorption by Rutile Crystal Facets in Hanks' Solution Characterized by XPS. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3597-3604. [PMID: 33749278 DOI: 10.1021/acs.langmuir.0c03540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
For the elucidation of the mechanism of calcium phosphate formation on commercially pure titanium (CP Ti) in the human body, rutile TiO2 single crystal plates with (001), (110), and (111) facets, namely, TiO2(001), TiO2(110), and TiO2(111), and polycrystalline plates (TiO2(poly)) were immersed in a simulated body fluid, Hanks' solution (Hanks), for 100-105 s, and the adsorption of calcium and phosphate ions was precisely characterized employing X-ray photoelectron spectroscopy (XPS). Previously published CP Ti data were used for comparison. Prior to immersion in Hanks, oxygen content was more than twice as high as that of titanium due to the existence of hydroxyl groups and water on the oxides. After immersion in Hanks, the composition and chemical state of the TiO2 substrates remained unchanged. Among the electrolytes contained in Hanks, only calcium and phosphate ions were adsorbed by and incorporated onto TiO2 surfaces. Adsorption of calcium ions onto rutile did not exhibit any systematic increase of calcium with immersion time except TiO2(poly). Adsorption of phosphate ions was initially constant, followed by an increase with the logarithm of immersion time. The adsorption rate of phosphate ions decreased in the following order: TiO2(001), TiO2(poly), TiO2(111), CP Ti, and TiO2(110). The coordination number and band gap of each crystal facet of rutile is important for the adsorption and incorporation of phosphate ions. Regular calcium phosphate formation on CP Ti is possibly enabled by the surface oxide film, which consists chiefly of amorphous TiO2. However, calcium phosphate formation kinetics on CP Ti differed from those on the TiO2 crystalline phase. These findings may further the understanding of CP Ti hard tissue compatibility.
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Affiliation(s)
- Akari Hiji
- Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Takao Hanawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
- Center for Advanced Medical Engineering Research & Development, Kobe University, 1-5-1 minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Taishi Yokoi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Peng Chen
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Maki Ashida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Masakazu Kawashita
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
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Hiji A, Hanawa T, Shimabukuro M, Chen P, Ashida M, Ishikawa K. Initial formation kinetics of calcium phosphate on titanium in Hanks' solution characterized using XPS. SURF INTERFACE ANAL 2020. [DOI: 10.1002/sia.6900] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Akari Hiji
- Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan
| | - Takao Hanawa
- Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University Tokyo Japan
- Center for Advanced Medical Engineering Research and Development Kobe University Kobe Japan
| | - Masaya Shimabukuro
- Department of Biomaterials, Faculty of Dental Science Kyushu University Fukuoka Japan
| | - Peng Chen
- Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University Tokyo Japan
| | - Maki Ashida
- Institute of Biomaterials and Bioengineering Tokyo Medical and Dental University Tokyo Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science Kyushu University Fukuoka Japan
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Rajan ST, V V AT, Terada-Nakaishi M, Chen P, Hanawa T, Nandakumar AK, Subramanian B. Zirconium-based metallic glass and zirconia coatings to inhibit bone formation on titanium. Biomed Mater 2020; 15:065019. [DOI: 10.1088/1748-605x/aba23a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Affiliation(s)
- Takao HANAWA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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10
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Hanawa T. Titanium-Tissue Interface Reaction and Its Control With Surface Treatment. Front Bioeng Biotechnol 2019; 7:170. [PMID: 31380361 PMCID: PMC6650641 DOI: 10.3389/fbioe.2019.00170] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/03/2019] [Indexed: 12/17/2022] Open
Abstract
Titanium (Ti) and its alloys are widely used for medical and dental implant devices-artificial joints, bone fixators, spinal fixators, dental implant, etc. -because they show excellent corrosion resistance and good hard-tissue compatibility (bone formation and bone bonding ability). Osseointegration is the first requirement of the interface structure between titanium and bone tissue. This concept of osseointegration was immediately spread to dental-materials researchers worldwide to show the advantages of titanium as an implant material compared with other metals. Since the concept of osseointegration was developed, the cause of osseointegration has been actively investigated. The surface chemical state, adsorption characteristics of protein, and bone tissue formation process have also been evaluated. To accelerate osseointegration, roughened and porous surfaces are effective. HA and TiO2 coatings prepared by plasma spray and an electrochemical technique, as well as alkalinization of the surface, are also effective to improve hard-tissue compatibility. Various immobilization techniques for biofunctional molecules have been developed for bone formation and prevention of platelet and bacteria adhesion. These techniques make it possible to apply Ti to a scaffold of tissue engineering. The elucidation of the mechanism of the excellent biocompatibility of Ti can provide a shorter way to develop optimal surfaces. This review should enhance the understanding of the properties and biocompatibility of Ti and highlight the significance of surface treatment.
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Affiliation(s)
- Takao Hanawa
- Department of Metallic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
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Pallotta A, Clarot I, Sobocinski J, Fattal E, Boudier A. Nanotechnologies for Medical Devices: Potentialities and Risks. ACS APPLIED BIO MATERIALS 2018; 2:1-13. [DOI: 10.1021/acsabm.8b00612] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Igor Clarot
- CITHEFOR, Université de Lorraine, F-54000 Nancy, France
| | | | - Elias Fattal
- Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 92290 Châtenay-Malabry, France
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Bins-Ely L, Cesca K, Souza FS, Porto L, Spinelli A, Magini R, Henriques B, Souza JCM. On the increase of the chemical reactivity of cp titanium and Ti6Al4V at low electrical current in a protein-rich medium. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aae409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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YAMAGUCHI T, YAMADA I, TAGAYA M. Film Formation by Precipitating Calcium Phosphate on Phospholipid Vesicle in Simulated Body Fluid Containing Trometamol. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tadashi YAMAGUCHI
- Department of Materials Science and Technology, Graduate School of Engineering, Nagaoka University of Technology
| | - Iori YAMADA
- Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology
| | - Motohiro TAGAYA
- Department of Materials Science and Technology, Graduate School of Engineering, Nagaoka University of Technology
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Are clinical findings of systemic titanium dispersion following implantation explained by available in vitro evidence? An evidence-based analysis. J Biol Inorg Chem 2017; 22:799-806. [PMID: 28516215 DOI: 10.1007/s00775-017-1464-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 05/05/2017] [Indexed: 10/19/2022]
Abstract
Although the presence of titanium wear particles released into tissues is known to induce local inflammation following the therapeutic implantation of titanium devices into humans, the role that titanium ions play in adverse tissue responses has received little attention. Support that ongoing titanium ion release occurs is evidenced by the presence of ionic titanium bound to transferrin in blood, and ongoing excretion in the urine of patients with titanium devices. However, as reports documenting the presence of titanium within tissues do not distinguish between particulate and ionic forms due to technical challenges, the degree to which ionic titanium is released into tissues is unknown. To determine the potential for titanium ion release into tissues, this study evaluates available in vitro evidence relating to the release of ionic titanium under physiological conditions. This is a systematic literature review of studies reporting titanium ion release into solutions from titanium devices under conditions replicating the interstitial pH and constituents. Inclusion and exclusion criteria were defined. Of 452 articles identified, titanium ions were reported in nine media relevant to human biology in seventeen studies. Only one study, using human serum replicated both physiological pH and the concentration of constituents while reporting the presence of titanium ions. While there is insufficient information to explain the factors that contribute to the presence of titanium ions in serum of humans implanted with titanium devices, currently available information suggests that areas of future inquiry include the role of transferrin and organic acids.
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Tsutsumi Y, Nishisaka T, Doi H, Ashida M, Chen P, Hanawa T. Reaction of calcium and phosphate ions with titanium, zirconium, niobium, and tantalum. SURF INTERFACE ANAL 2015. [DOI: 10.1002/sia.5866] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yusuke Tsutsumi
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Takeru Nishisaka
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Hisashi Doi
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Maki Ashida
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Peng Chen
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Takao Hanawa
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-surugadai Chiyoda-ku Tokyo 101-0062 Japan
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Kumar K A, Bhatt V, Balakrishnan M, Hashem M, Vellappally S, Aziz A Al Kheraif A, Halawany HS, Abraham NB, Jacob V, Anil S. Bioactivity and Surface Characteristics of Titanium Implants Following Various Surface Treatments: An In Vitro Study. J ORAL IMPLANTOL 2015; 41:e183-8. [DOI: 10.1563/aaid-joi-d-13-00292] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study compared the surface topography, hydrophilicity, and bioactivity of titanium implants after 3 different surface treatments (sandblasting and acid etching, modified sandblasting and acid etching, and thermal oxidation) with those of machined implants. One hundred indigenously manufactured threaded titanium implants were subjected to 3 methods of surface treatment. The surface roughness of the nontreated (Group A) and treated samples (Groups B through D) was evaluated with a scanning electron microscope (SEM) and profilometer. The wettability was visually examined using a colored dye solution. The calcium ions attached to the implant surface after immersing in simulated body fluid (SBF) were assessed on days 1, 2, and 7 with an atomic electron spectroscope. The data were analyzed statistically. The SBF test allowed the precipitation of a calcium phosphate layer on all surface-treated samples, as evidenced in the SEM analysis. A significantly higher amount of calcium ions and increased wettability were achieved in the thermally oxidized samples. The mean roughness was significantly lower in Group A (0.85 ± 0.07) compared to Group B (1.35 ± 0.17), Group C (1.40 ± 0.14), and Group D (1.36 ± 0.18). The observations from this in vitro study indicated that surface treatment of titanium improved the bioactivity. Moreover, results identified the implants that were sandblasted, acid etched, and then oxidized attracted more calcium ions.
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Affiliation(s)
- Aswini Kumar K
- Department of Prosthodontics and Implantology, Amrita School of Dentistry, Cochin, India
| | - Vinaya Bhatt
- Department of Prosthodontics and Implantology, AB Shetty Memorial Institute of Dental Sciences, Mangalore, India
| | - Manilal Balakrishnan
- Department of Environmental Science, National Institute for Interdisciplinary Science and Technology, Trivandrum, India
| | - Mohamed Hashem
- Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
- Department of Dental Biomaterials, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt
| | - Sajith Vellappally
- Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdul Aziz A Al Kheraif
- Dental Biomaterials Research, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Hassan Suliman Halawany
- Dental Caries Research Chair, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Nimmi Biju Abraham
- Dental Caries Research Chair, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Vimal Jacob
- Dental Caries Research Chair, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Sukumaran Anil
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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17
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Yatongchai C, Placek LM, Curran DJ, Towler MR, Wren AW. Investigating the addition of SiO2–CaO–ZnO–Na2O–TiO2 bioactive glass to hydroxyapatite: Characterization, mechanical properties and bioactivity. J Biomater Appl 2015; 30:495-511. [DOI: 10.1177/0885328215592866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hydroxyapatite (Ca10(PO4)6(OH)2) is widely investigated as an implantable material for hard tissue restoration due to its osteoconductive properties. However, hydroxyapatite in bulk form is limited as its mechanical properties are insufficient for load-bearing orthopedic applications. Attempts have been made to improve the mechanical properties of hydroxyapatite, by incorporating ceramic fillers, but the resultant composite materials require high sintering temperatures to facilitate densification, leading to the decomposition of hydroxyapatite into tricalcium phosphate, tetra-calcium phosphate and CaO phases. One method of improving the properties of hydroxyapatite is to incorporate bioactive glass particles as a second phase. These typically have lower softening points which could possibly facilitate sintering at lower temperatures. In this work, a bioactive glass (SiO2–CaO–ZnO–Na2O–TiO2) is incorporated (10, 20 and 30 wt%) into hydroxyapatite as a reinforcing phase. X-ray diffraction confirmed that no additional phases (other than hydroxyapatite) were formed at a sintering temperature of 560 ℃ with up to 30 wt% glass addition. The addition of the glass phase increased the % crystallinity and the relative density of the composites. The biaxial flexural strength increased to 36 MPa with glass addition, and there was no significant change in hardness as a function of maturation. The pH of the incubation media increased to pH 10 or 11 through glass addition, and ion release profiles determined that Si, Na and P were released from the composites. Calcium phosphate precipitation was encouraged in simulated body fluid with the incorporation of the bioactive glass phase, and cell culture testing in MC-3T3 osteoblasts determined that the composite materials did not significantly reduce cell viability.
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Affiliation(s)
| | - Lana M Placek
- Inamori School of Engineering, Alfred University, Alfred, NY, USA
| | - Declan J Curran
- Faculty of Mechanical & Industrial Engineering, Ryerson University, Toronto, Ontario, Canada
| | - Mark R Towler
- Faculty of Mechanical & Industrial Engineering, Ryerson University, Toronto, Ontario, Canada
- Department of Biomedical Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Anthony W Wren
- Inamori School of Engineering, Alfred University, Alfred, NY, USA
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18
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Thomas M, Arora A, Katti DS. Surface hydrophilicity of PLGA fibers governs in vitro mineralization and osteogenic differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:320-32. [DOI: 10.1016/j.msec.2014.08.074] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 08/23/2014] [Accepted: 08/30/2014] [Indexed: 10/24/2022]
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Wang K, Leng Y, Lu X, Ren F. Calcium phosphate bioceramics induce mineralization modulated by proteins. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3245-55. [DOI: 10.1016/j.msec.2013.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 03/29/2013] [Accepted: 04/01/2013] [Indexed: 10/27/2022]
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20
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Pound BG. Passive films on metallic biomaterials under simulated physiological conditions. J Biomed Mater Res A 2013; 102:1595-604. [DOI: 10.1002/jbm.a.34798] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 04/15/2013] [Accepted: 05/06/2013] [Indexed: 11/05/2022]
Affiliation(s)
- B. G. Pound
- Exponent, 149 Commonwealth Drive; Menlo Park California 94025
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21
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Wren AW, Hansen JP, Hayakawa S, Towler MR. Aluminium-free glass polyalkenoate cements: ion release and in vitro antibacterial efficacy. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1167-1178. [PMID: 23386211 DOI: 10.1007/s10856-013-4880-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 01/25/2013] [Indexed: 06/01/2023]
Abstract
Glass polyalkenoate cements (GPCs) have exhibited potential as bone cements. This study investigates the effect of substituting TiO₂ for SiO₂ in the glass phase and the subsequent effect on cement rheology, mechanical properties, ion release and antibacterial properties. Glass characterization revealed a reduction in glass transition temperature (T(g)) from 685 to 669 °C with the addition of 6 mol % TiO₂ (AT-2). Magic angle spinning nuclear magnetic resonance (MAS-NMR) revealed a shift from -81 ppm to -76 pmm when comparing a Control glass to AT-2, indicating de-polymerization of the Si network. The incorporation of TiO₂ also increased the working time (T(w)) from 19 to 61 s and setting time (T(s)) from 70 to 427 s. The maximum compressive strength (σ(c)) increased from 64 to 85 MPa. Ion release studies determined that the addition of Ti to the glass reduced the release of zinc, calcium and strontium ions, with low concentrations of titanium being released. Antibacterial testing in E. coli resulted in greater bactericidal effects when tested in aqueous broth for both titanium containing cements.
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Affiliation(s)
- A W Wren
- Inamori School of Engineering, Alfred University, Alfred, NY 14802, USA.
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22
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Hamza S, Bouchemi M, Slimane N, Azari Z. Physical and chemical characterization of adsorbed protein onto gold electrode functionalized with Tunisian coral and nacre. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 33:537-42. [PMID: 25428107 DOI: 10.1016/j.msec.2012.09.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 08/04/2012] [Accepted: 09/28/2012] [Indexed: 11/16/2022]
Abstract
Bone substitutes are more and more used in bone surgery because of their biologic safety, clinic efficiency and facility to synthesize. Bone substitutes with active osteogenic properties, associating biomaterials with organic macromolecule components of the extracellular matrix (protein, GAG) are recommended. Nevertheless, we should have a simple technique to control interactions between proteins and the material. Natural coral and nacre have been found to be impressive bone graft substitutes. In this work, we characterize nacre and coral powder using energy dispersive X-ray analysis (EDX). We used electrochemical impedance spectroscopy (EIS) and attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy to evaluate bovine serum albumin (BSA) as model protein, adsorbed to these biomaterial surfaces. In order to understand the nacre/coral-protein interfacial compatibility, it is necessary to investigate the wettability.
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Affiliation(s)
- Samir Hamza
- Biomaterials and Biomechanics Laboratory, National Institute M.T. Kassab of Orthopedic, 2010 La Manouba, Tunis, Tunisia.
| | - Meryem Bouchemi
- National Institute of Applied Sciences and Technology, Centre Urbain Nord, Box 676, 1080 Tunis cedex, Tunisia.
| | - Noureddine Slimane
- Biomaterials and Biomechanics Laboratory, National Institute M.T. Kassab of Orthopedic, 2010 La Manouba, Tunis, Tunisia.
| | - Zitouni Azari
- Laboratory of Biomechanics, Polymer and Structures Mechanics, National School of Engineers of Metz, France, 1 route d'Ars Laquenexy, CS 65820 57078 Metz cedex 03, France.
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23
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Pöhlker C, Wiedemann KT, Sinha B, Shiraiwa M, Gunthe SS, Smith M, Su H, Artaxo P, Chen Q, Cheng Y, Elbert W, Gilles MK, Kilcoyne ALD, Moffet RC, Weigand M, Martin ST, Pöschl U, Andreae MO. Biogenic potassium salt particles as seeds for secondary organic aerosol in the Amazon. Science 2012; 337:1075-8. [PMID: 22936773 DOI: 10.1126/science.1223264] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The fine particles serving as cloud condensation nuclei in pristine Amazonian rainforest air consist mostly of secondary organic aerosol. Their origin is enigmatic, however, because new particle formation in the atmosphere is not observed. Here, we show that the growth of organic aerosol particles can be initiated by potassium-salt-rich particles emitted by biota in the rainforest. These particles act as seeds for the condensation of low- or semi-volatile organic compounds from the atmospheric gas phase or multiphase oxidation of isoprene and terpenes. Our findings suggest that the primary emission of biogenic salt particles directly influences the number concentration of cloud condensation nuclei and affects the microphysics of cloud formation and precipitation over the rainforest.
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Affiliation(s)
- Christopher Pöhlker
- Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz 55020, Germany.
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Alpha-TCP improves the apatite-formation ability of calcium-silicate hydraulic cement soaked in phosphate solutions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.05.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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26
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Wren A, Akgun B, Adams B, Coughlan A, Mellott N, Towler M. Characterization and antibacterial efficacy of silver-coated Ca–Na–Zn–Si/Ti glasses. J Biomater Appl 2011; 27:433-43. [DOI: 10.1177/0885328211411000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A glass series [ xSiO2[ −y]·0.36ZnO·0.17Na2O·0.05CaO (starting at x = 0.50, y = 0.08 TiO2)] was formulated with TiO2 substituting SiO2. Each glass/silver-coated glass was characterized using X-ray diffraction, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Surface area analysis revealed significant changes after silver coating, 0.43–0.95 m2/g (control), to 0.53–1.85 m2/g (AU-1), and 0.20–1.11 m2/g (AU-2). Ion release from uncoated glasses included sodium (0.08 mg/L), calcium (0.07 mg/L), and zinc (0.008 mg/L), where silver-coated glasses presented 0.42 mg/L (silver), 0.33 mg/L (sodium), 0.02 mg/L (calcium), and 0.01 mg/L (zinc). Ag-coated glasses presented inhibition zones of 7.75 mm (control) compared to 1.04 mm (AU-2).
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Affiliation(s)
- Anthony Wren
- Inamori School of Engineering, Alfred University, 1 Saxon Drive, Alfred, NY 14802, USA
| | - Betul Akgun
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, Turkey
| | - Brian Adams
- Inamori School of Engineering, Alfred University, 1 Saxon Drive, Alfred, NY 14802, USA
| | - Aisling Coughlan
- Inamori School of Engineering, Alfred University, 1 Saxon Drive, Alfred, NY 14802, USA
| | - Nathan Mellott
- Inamori School of Engineering, Alfred University, 1 Saxon Drive, Alfred, NY 14802, USA
| | - Mark Towler
- Inamori School of Engineering, Alfred University, 1 Saxon Drive, Alfred, NY 14802, USA
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27
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Nath S, Ummethala R, Basu B. Fretting wear behavior of calcium phosphate-mullite composites in dry and albumin-containing simulated body fluid conditions. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1151-1161. [PMID: 20054617 DOI: 10.1007/s10856-009-3983-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 12/23/2009] [Indexed: 05/28/2023]
Abstract
In a recent work, it has been shown that it is possible to achieve a better combination of compressive strength, flexural strength and toughness properties in calcium phosphate (CaP) composites containing 20 and 30 wt% mullite (3Al(2)O(3).2SiO(2)). In view of their potential application as load bearing implants, the present work reports the friction and wear properties of the newly developed composites against zirconia under dry ambient as well as in simulated body fluid (SBF) containing bovine serum albumin (BSA) protein. For comparison, experiments were also conducted on monolithic hydroxyapatite (HAp, Ca(10)(PO(4))(6)(OH)(2)) and mullite under identical conditions. Under the investigated fretting conditions, the mullite-containing composites exhibited higher coefficient of friction (COF) of 0.4-0.6, compared to pure HAp (COF approximately 0.25-0.3). Although the wear resistance of the composites containing 20 or 30 wt% mullite was better in dry conditions, higher wear rate was measured in SBF conditions. The difference in tribological properties has been analyzed in reference to the difference in phase assemblage and mechanical properties. A comparison with some competing biomaterials reveals good potential of the investigated CaP-mullite composites for application as wear resistant implants.
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Affiliation(s)
- Shekhar Nath
- Laboratory for Biomaterials, Materials and Metallurgical Engineering, Indian Institute of Technology Kanpur, Kanpur, UP, India
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Blinova MI, Yudintzeva NM, Nikolaenko NS, Potokin IL, Raykhtsaum G, Pitkin MR, Pinaev GP. Cell Cultivation on Porous Titanium Implants with Various Structures. CELL AND TISSUE BIOLOGY 2010; 4:572-579. [PMID: 21949585 PMCID: PMC3178890 DOI: 10.1134/s1990519x10060088] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The paper presents data on the cultivation of human dermal fibroblasts and rabbit mesenchymal stromal cells on two types of porous titanium implants, i.e., those with irregular pores formed by pressed titanium particles and those with regular pores formed by the cohesion of one-size titanium particles inside the implant. The goal of this study was to determine what type of titanium implant porosity ensured its strongest interaction with cells. Cells were cultivated on implants for 7 days. During this period, they formed a confluent monolayer on the implant surface. Cells grown on titanium implants were monitored by scanning electron microscopy. Fibroblasts interaction with implants depended on the implant porosity structure. On implants with irregular pores cells were more spread. On implants with regular pores fibroblasts enveloped particles and were only occasionally bound with neighboring particles by small outgrowths. There was no tight interaction of particles inside the implant. In implants formed by pressed particles, cells grow not only on surface, but also in the depth of the implant. Thus, we suppose that a tighter interaction of cells with the titanium implant and, supposedly, tissues with the implant in the organism will take place in the variant when the implant structure is formed by pressed titanium particles, i.e., cellular interaction was observed inside the implant. In implants with irregular pores, cells grew both on the surface and in the depth. Thus, cells exhibited more adequate interactions with irregular pore titanium implants in vitro and hopefully the same interaction will be true in tissues after the implantation of the prosthesis into the organism.
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Affiliation(s)
- M. I. Blinova
- Institute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia
| | - N. M. Yudintzeva
- Institute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia
| | - N. S. Nikolaenko
- Institute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia
| | - I. L. Potokin
- Institute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia
| | | | - M. R. Pitkin
- Poly-Orth International, Sharon, MA, USA
- Tufts University School of Medicine, Boston, MA, USA
| | - G. P. Pinaev
- Institute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia
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29
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Wu CY, Martel J, Young D, Young JD. Fetuin-A/albumin-mineral complexes resembling serum calcium granules and putative nanobacteria: demonstration of a dual inhibition-seeding concept. PLoS One 2009; 4:e8058. [PMID: 19956594 PMCID: PMC2779105 DOI: 10.1371/journal.pone.0008058] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 11/04/2009] [Indexed: 12/02/2022] Open
Abstract
Serum-derived granulations and purported nanobacteria (NB) are pleomorphic apatite structures shown to resemble calcium granules widely distributed in nature. They appear to be assembled through a dual inhibitory-seeding mechanism involving proteinaceous factors, as determined by protease (trypsin and chymotrypsin) and heat inactivation studies. When inoculated into cell culture medium, the purified proteins fetuin-A and albumin fail to induce mineralization, but they will readily combine with exogenously added calcium and phosphate, even in submillimolar amounts, to form complexes that will undergo morphological transitions from nanoparticles to spindles, films, and aggregates. As a mineralization inhibitor, fetuin-A is much more potent than albumin, and it will only seed particles at higher mineral-to-protein concentrations. Both proteins display a bell-shaped, dose-dependent relationship, indicative of the same dual inhibitory-seeding mechanism seen with whole serum. As ascertained by both seeding experiments and gel electrophoresis, fetuin-A is not only more dominant but it appears to compete avidly for nanoparticle binding at the expense of albumin. The nanoparticles formed in the presence of fetuin-A are smaller than their albumin counterparts, and they have a greater tendency to display a multi-layered ring morphology. In comparison, the particles seeded by albumin appear mostly incomplete, with single walls. Chemically, spectroscopically, and morphologically, the protein-mineral particles resemble closely serum granules and NB. These particles are thus seen to undergo an amorphous to crystalline transformation, the kinetics and completeness of which depend on the protein-to-mineral ratios, with low ratios favoring faster conversion to crystals. Our results point to a dual inhibitory-seeding, de-repression model for the assembly of particles in supersaturated solutions like serum. The presence of proteins and other inhibitory factors tend to block apatite nuclei formation or to stabilize the nascent nuclei as amorphous or semi-crystalline spherical nanoparticles, until the same inhibitory influences are overwhelmed or de-repressed, whereby the apatite nuclei grow in size to coalesce into crystalline spindles and films-a mechanism that may explain not only the formation of calcium granules in nature but also normal or ectopic calcification in the body.
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Affiliation(s)
- Cheng-Yeu Wu
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Research Center of Bacterial Pathogenesis, Chang Gung University, Gueishan, Taiwan, Republic of China
| | - Jan Martel
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Department of Biochemistry and Molecular Biology, Graduate Institute of Biomedical Sciences, Chang Gung University, Gueishan, Taiwan, Republic of China
| | - David Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - John D. Young
- Laboratory of Nanomaterials, Chang Gung University, Gueishan, Taiwan, Republic of China
- Laboratory of Cellular Physiology and Immunology, The Rockefeller University, New York, New York, United States of America
- Biochemical Engineering Research Center, Mingchi University of Technology, Taipei, Taiwan, Republic of China
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30
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Mercier-Bonin M, Adoue M, Zanna S, Marcus P, Combes D, Schmitz P. Evaluation of adhesion force between functionalized microbeads and protein-coated stainless steel using shear-flow-induced detachment. J Colloid Interface Sci 2009; 338:73-81. [DOI: 10.1016/j.jcis.2009.06.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Revised: 05/14/2009] [Accepted: 06/06/2009] [Indexed: 11/15/2022]
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Abstract
Two decades after introducing threaded titanium dental implants, Dr. Per-Ingvar Brånemark used a similar technique in the 1980s to pioneer the direct skeletal attachment (DSA) of limb prostheses. He and his colleagues used convincing clinical experience to overcome the skepticism of their peers, affording a new dimension of prosthetic rehabilitation to almost 100 individuals with amputation. As a result, more research has been initiated worldwide to move DSA to a level of greater safety, longevity, and reliability. This review highlights the trends and milestones in current DSA development. It also identifies ideas from previous studies in various fields that may be useful in future DSA development.
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Affiliation(s)
- Mark Pitkin
- Tufts University School of Medicine, Physical Medicine and Rehabilitation, Boston, MA 02111, USA.
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32
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Tsutsumi Y, Nishimura D, Doi H, Nomura N, Hanawa T. Difference in surface reactions between titanium and zirconium in Hanks' solution to elucidate mechanism of calcium phosphate formation on titanium using XPS and cathodic polarization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2009.01.016] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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Pitkin M, Raykhtsaum G, Pilling J, Galibin OV, Protasov MV, Chihovskaya JV, Belyaeva IG, Blinova MI, Yudintseva NM, Potokin IL, Pinaev GP, Moxson V, Duz V. Porous composite prosthetic pylon for integration with skin and bone. ACTA ACUST UNITED AC 2009; 44:723-38. [PMID: 17943684 DOI: 10.1682/jrrd.2006.12.0160] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This article presents results of the further development and testing of the "skin and bone integrated pylon" (SBIP-1) for percutaneous (through skin) connection of the residual bone with an external limb prosthesis. We investigated a composite structure (called the SBIP-2) made of titanium particles and fine wires using mathematical modeling and mechanical testing. Results showed that the strength of the pylon was comparable with that of anatomical bone. In vitro and in vivo animal studies on 30 rats showed that the reinforcement of the composite pylon did not compromise its previously shown capacity for inviting skin and bone cell ingrowth through the device. These findings provide evidence for the safe and reliable long-term percutaneous transfer of vital and therapeutic substances, signals, and necessary forces and moments from a prosthetic device to the body.
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Schliephake H, Aref A, Scharnweber D, Rößler S, Sewing A. Effect of modifications of dual acid-etched implant surfaces on periimplant bone formation. Part II: calcium phosphate coatings. Clin Oral Implants Res 2009; 20:38-44. [DOI: 10.1111/j.1600-0501.2008.01616.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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36
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Benesch J, Mano JF, Reis RL. Proteins and Their Peptide Motifs in Acellular Apatite Mineralization of Scaffolds for Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2008; 14:433-45. [DOI: 10.1089/ten.teb.2008.0121] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Johan Benesch
- 3B's Research Group—Biomaterials, Biodegradables, and Biomimetics, Department of Polymer Engineering, University of Minho, Caldas das Taipas, Portugal
- IBB—Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Braga, Portugal
| | - João F. Mano
- 3B's Research Group—Biomaterials, Biodegradables, and Biomimetics, Department of Polymer Engineering, University of Minho, Caldas das Taipas, Portugal
- IBB—Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Braga, Portugal
| | - Rui L. Reis
- 3B's Research Group—Biomaterials, Biodegradables, and Biomimetics, Department of Polymer Engineering, University of Minho, Caldas das Taipas, Portugal
- IBB—Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Braga, Portugal
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Palmer LC, Newcomb CJ, Kaltz SR, Spoerke ED, Stupp SI. Biomimetic systems for hydroxyapatite mineralization inspired by bone and enamel. Chem Rev 2008; 108:4754-83. [PMID: 19006400 PMCID: PMC2593885 DOI: 10.1021/cr8004422] [Citation(s) in RCA: 647] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liam C Palmer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
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Padilla N, Bronson A. Electrochemical characterization of albumin protein on Ti-6AL-4V alloy immersed in a simulated plasma solution. J Biomed Mater Res A 2007; 81:531-43. [PMID: 17133449 DOI: 10.1002/jbm.a.31046] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The effect of oxygen and albumin on the electrochemical behavior of a Ti-6Al-4V alloy immersed in a simulated inorganic plasma (SIP) solution was studied with a rotating-cylindrical electrode configuration to focus on the surface/electrolyte reactions. Potentiokinetic scans and electrochemical impedance spectroscopy have been used to characterize the interface by determining the passive current density and capacitance. For the polarization scans, an albumin addition of 37.7 mg/cm(3) to the SIP solution (oxygenated and unoxygenated) decreased the passive current density, indicating a lowering of the corrosive rate. The surface capacitance for the Ti-6Al-4V alloy immersed in a SIP solution averaged 13 microF/cm(2), which transformed after albumin addition (37.7 mg/cm(3)) from a potential independent behavior to the capacitance ranging from 23 to 6 microF/cm(2) with increasing potentials from -800 to 1500 mV(SCE), respectively, indicative of albumin adsorption. Within the same potential range and albumin addition to oxygenated solutions, the capacitances expanded slightly with a similar decreasing trend from 31 to 6 microF/cm(2), although the capacitance depicts an interaction between the hydrated passive film and the adsorbed albumin from -550 to 500 mV(SCE) in which the capacitance plateaued at 15 microF/cm(2). The hydrated porous oxide film results from the porous rutile layer reacting with H(2)O(2) formed as an intermediary component of oxygen reduction at the Ti-6Al-4V surface. The passive film-albumin interaction would affect the processing of titanium alloys in their surface preparation for biocompatibility, as well as determining the reactivity of titanium alloys to proteins.
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Affiliation(s)
- Norma Padilla
- Materials Engineering Department, Northrop Grumman Corporation, Redondo Beach, California 90278, USA
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Kizuki T, Ohgaki M, Ichinose S, Nakamura S, Hashimoto K, Toda Y, Yokogawa Y, Yamashita K. Specific response of osteoblast-like cells on hydroxyapatite layer containing serum protein. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2006; 17:859-67. [PMID: 16932869 DOI: 10.1007/s10856-006-9846-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2004] [Accepted: 10/24/2005] [Indexed: 05/11/2023]
Abstract
Accelerations of bone-like apatite deposition and cell growth on an electrically polarized ceramic hydroxyapatite have been reported. A relationship between these phenomena was investigated in a previous report, and then it was suggested that osteoblast-like cell's (MC3T3-E1) growth had relevance to the mineral growth. The effect of the formed apatite layer especially appeared to be on the cell adhesion. The acceleration of cell proliferation on the polarized HAp has been shown using fibroblastic cell (L929) and nerve cell (SK-N-SH) lines, therefore the effect of the layer on L929 and SK-N-SH was investigated to support the mechanism of acceleration of cell proliferation by polarization of HAp. In this study, the effect of the bone-like apatite layer was not confirmed on L929 cell's growth. On the other hand, the acceleration of nerve cell's proliferation was confirmed on the formed apatite layer. However, the remarkable improvement of the cell adhesion of SK-N-SH was not confirmed on the apatite layer. Consequently, it was considered that the bone-like apatite containing serum protein obtained by the coprecipitation of bone-like apatite and serum protein has a pronounced role only in the activity of osteoblast-like cells.
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Affiliation(s)
- Takashi Kizuki
- Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology, 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya, 463-8560, Japan
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40
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Sandrini E, Morris C, Chiesa R, Cigada A, Santin M. In vitro assessment of the osteointegrative potential of a novel multiphase anodic spark deposition coating for orthopaedic and dental implants. J Biomed Mater Res B Appl Biomater 2005; 73:392-9. [PMID: 15765501 DOI: 10.1002/jbm.b.30241] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Hydroxyapatite coatings have been proven to improve the osteointegration of metal implants through a tight binding to the bone mineral phase as well as through favorable osteoblast adhesion and proliferation onto the implant surface. However, hydroxyapatite coatings are not stable and they tend to delaminate from the metal surface when challenged by the mechanical stresses experienced by the implant. Recently, a new multiphase anodic spark deposition (ASD) method has been optimized where the formation of a thick oxide film is followed by the deposition of a calcium phosphate mineral phase and its etching by alkali. The data in this paper demonstrate that this novel type of coating, BioSpark, improves the material osteointegration potential when compared to conventional ASD while offering more mechanical stability. A faster mineralization was obtained by incubation in simulated body fluids and osteoblasts showed better adhesion, proliferation, differentiation, and collagen production. These performances were related to the surface morphology, to the film calcium/phosphate ratio and its surface oxygen content, as well as to a preferential binding of structural proteins such as fibronectin.
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Affiliation(s)
- Enrico Sandrini
- Dipartimento di Chimica Materiali e Ingegneria Chimica "G. Natta", Politecnico di Milano, Via Mancinelli, 7, 20131 Milano, Italy.
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Krajewski A, Ravaglioli A, Tinti A, Taddei P, Mazzocchi M, Martinetti R, Fagnano C, Fini M. Comparison between the in vitro surface transformations of AP40 and RKKP bioactive glasses. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2005; 16:119-128. [PMID: 15744599 DOI: 10.1007/s10856-005-5913-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2003] [Accepted: 07/20/2004] [Indexed: 05/24/2023]
Abstract
Two bioactive silica-phosphate glasses, AP40 and RKKP, were compared in their behaviour in simulated biological environment. Their chemical composition is practically identical, except that RKKP contains small amounts of amphoteric network-former oxides Ta2O5 and La2O3 (composition in wt% for AP40: beta-Ca3(PO4)2 24.50, SiO2 44.30, CaO 18.60, Na2O 4.60, K2O 0.19, MgO 2.82, CaF2 4.99; RKKP: beta-Ca3(PO4)2 24.23, SiO2 43.82, CaO 18.40, Na2O 4.55, K2O 0.19, MgO 2.79, CaF2 4.94, Ta2O5 0.99, La2O3 0.09). Previous investigations showed a better performance in osteopenic bone for RKKP. To gain more insight into these differences in biological behaviour, the in vitro bioactivity of the glasses was studied by treatment with a continuously replenished Hanks' Balanced Salt Solution (HBSS). The glasses were examined before and after HBSS treatment for 20 and 40 days by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), X-ray Energy Dispersion (EDX), Raman and IR vibrational spectroscopies. Some slight but notable differences between the two glasses were observed after HBSS treatment. IR and EDX analyses showed that deposits formed on both glasses were composed of a calcium deficient carbonate-apatite; however, the layer formed on RKKP glass was found to be slightly more calcium deficient and thinner. EDX analysis evidenced the presence of a small percentage of F- ions only in the layers formed on the RKKP samples. The differences disclosed, although slight, can contribute to the understanding of the different biological behaviour previously observed.
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Affiliation(s)
- A Krajewski
- ISTEC-CNR, Via Granarolo 64, 48018, Faenza (Ravenna), Italy
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Moulton SE, Barisci JN, Bath A, Stella R, Wallace GG. Investigation of Ig.G adsorption and the effect on electrochemical responses at titanium dioxide electrode. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:316-322. [PMID: 15620320 DOI: 10.1021/la0487242] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The adsorption of Immunoglobulin G on a titanium dioxide (TiO(2)) electrode surface was investigated using (125)I radiolabeling and electrochemical impedance spectroscopy (EIS). (125)I radiolabeling was used to determine the extent of protein adsorption, while EIS was used to ascertain the effect of the adsorbed protein layer on the electrode double layer capacitance and electron transfer between the TiO(2) electrode and the electrolyte. The adsorbed amounts of Ig.G agreed well with previous results and showed approximately monolayer coverage. The amount of adsorbed protein increased when a positive potential was applied to the electrode, while the application of a negative potential resulted in a decrease. Exposure to solutions of Ig.G resulted in a decrease of the double layer capacitance (C) and an increase in the charge-transfer resistance (R(2)) at the electrode solution interface. As more Ig.G adsorbed onto the electrode surface, the extent of C and R(2) variation increased. These capacitance and charge-transfer resistance variations were attributed to the formation of a proteinaceous layer on the electrode surface during exposure.
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Affiliation(s)
- Simon E Moulton
- ARC Centre for Nanostructured Electromaterials, Intelligent Polymer Research Institute, University of Wollongong, NSW 2522, Australia
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Zhao G, Schwartz Z, Wieland M, Rupp F, Geis-Gerstorfer J, Cochran DL, Boyan BD. High surface energy enhances cell response to titanium substrate microstructure. J Biomed Mater Res A 2005; 74:49-58. [PMID: 15924300 DOI: 10.1002/jbm.a.30320] [Citation(s) in RCA: 564] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Titanium (Ti) is used for implantable devices because of its biocompatible oxide surface layer. TiO2 surfaces that have a complex microtopography increase bone-to-implant contact and removal torque forces in vivo and induce osteoblast differentiation in vitro. Studies examining osteoblast response to controlled surface chemistries indicate that hydrophilic surfaces are osteogenic, but TiO2 surfaces produced until now exhibit low surface energy because of adsorbed hydrocarbons and carbonates from the ambient atmosphere or roughness induced hydrophobicity. Novel hydroxylated/hydrated Ti surfaces were used to retain high surface energy of TiO2. Osteoblasts grown on this modified surface exhibited a more differentiated phenotype characterized by increased alkaline phosphatase activity and osteocalcin and generated an osteogenic microenvironment through higher production of PGE2 and TGF-beta1. Moreover, 1alpha,25OH2D3 increased these effects in a manner that was synergistic with high surface energy. This suggests that increased bone formation observed on modified Ti surfaces in vivo is due in part to stimulatory effects of high surface energy on osteoblasts.
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Affiliation(s)
- G Zhao
- Georgia Institute of Technology, Atlanta, GA 30332, USA
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Aeimbhu A, Castle JE, Singjai P. Accounting for the size of molecules in determination of adsorption isotherms by XPS; exemplified by adsorption of chicken egg albumin on titanium. SURF INTERFACE ANAL 2005. [DOI: 10.1002/sia.2120] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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Hanawa T. Metal ion release from metal implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2004. [DOI: 10.1016/j.msec.2004.08.018] [Citation(s) in RCA: 239] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hayakawa T, Yoshinari M, Sakae T, Nemoto K. Calcium phosphate formation on the phosphorylated dental bonding agent in electrolyte solution. J Oral Rehabil 2004; 31:67-73. [PMID: 15125600 DOI: 10.1111/j.1365-2842.2004.01135.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of the present study was to study the mineral formation on a phosphorylated dental bonding agent using a mineralization inductive solution. Clearfil Photobond, which contained phosphate monomer, was cured by photo-irradiation and heat treated, and was then immersed in Hanks' balanced salt solution (HBSS) with pH = 7.4 for 1, 3, 5, 7, 14, and 28 days at 37 degrees C. The white substances were deposited on the phosphorylated polymer, i.e. cured Photobond disk, after the immersion in HBSS. The white substances become visible after 3 days immersion. After 7 days immersion, surface of the phosphorylated polymer disk was almost covered with white substance layers. The measurement of white substances by means of X-ray diffraction, Fourier-transform infrared and electron probe microanalysis revealed that their main component was carbonate-containing hydroxyapatite. Scanning electron microscopy pictures showed that a large number of globules of hydroxyapatite were fused together, and that each globule was composed of a group of numerous thin-film form flakes uniting and/or clustering together. The results obtained in this study concluded that the presence of phosphonic acid and phosphate group of phosphorylated dental bonding agent enhanced the nucleation and growth of hydroxyapatite crystals on its surface.
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Affiliation(s)
- T Hayakawa
- Department of Dental Materials, Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan.
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Serro AP, Bastos M, Pessoa JC, Saramago B. Bovine serum albumin conformational changes upon adsorption on titania and on hydroxyapatite and their relation with biomineralization. ACTA ACUST UNITED AC 2004; 70:420-7. [PMID: 15293315 DOI: 10.1002/jbm.a.30096] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The biocompatibility of implant materials used for substitution of bone tissue depends on its ability to induce the deposition of a hydroxyapatite layer when in contact with body fluids. In previous work, some of the authors found that bovine serum albumin (BSA) promotes calcium phosphate deposition if preadsorbed on hydroxyapatite and retards precipitation if preadsorbed on titania. In the present study, we investigated the adsorption of BSA upon particles of titania and hydroxyapatite in order to understand the different role played by the protein on the mineralization of both biomaterials. The adsorption isotherms were determined and the structural changes induced by adsorption at different surface coverages were investigated by circular dichroism spectroscopy and differential scanning microcalorimetry. At low surface coverages, the adsorbed BSA molecules lost part of their alpha-helix content. However, at high surface coverages, corresponding to the plateau values of the adsorption isotherms, the BSA molecules did not undergo structural rearrangements upon adsorption. In the latter circumstances, the availability of BSA calcium binding sites, which should be responsible for inducing mineralization, depends on the electrostatic interactions between BSA and the sorbent surface. A possible explanation for the different mineralization behavior of hydroxyapatite and titania is advanced.
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Affiliation(s)
- A P Serro
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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Hwang K, Kim C. Interface characteristics changed by heat treatment of Ti materials with hydroxyapatite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2003. [DOI: 10.1016/s0928-4931(02)00311-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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49
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The influence of bovine serum albumin on the crystallization of calcium phosphates from a revised simulated body fluid. Colloids Surf A Physicochem Eng Asp 2003. [DOI: 10.1016/s0927-7757(02)00438-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Marques PAAP, Serro AP, Saramago BJ, Fernandes AC, Magalhães MCF, Correia RN. Mineralisation of two phosphate ceramics in HBSS: role of albumin. Biomaterials 2003; 24:451-60. [PMID: 12423600 DOI: 10.1016/s0142-9612(02)00358-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The role of albumin in the mineralisation process of commercial hydroxyapatite (HAp) and synthesised biphasic (HAp-tricalcium phosphate) ceramics in a bufferless simulated inorganic plasma (HBSS) was investigated by conventional in vitro tests and static and dynamic wettability measurements. Albumin was either pre-adsorbed or solubilised in HBSS. It was found that calcium complexation by albumin plays a key role in early mineralisation kinetics, so that mineralisation is favoured when albumin is pre-adsorbed and hindered when it is dissolved in HBSS. In the biphasic ceramic this picture is complicated by the fact that albumin, in solution, seems to promote the dissolution of tricalcium phosphate, and simultaneously compete for calcium with the ceramic. It also appears that albumin has a stabilising effect of octacalcium phosphate present in deposits on commercial HAp. The same effect may be present in the case of the biphasic ceramic, at earlier mineralisation times, when octacalcium phosphate appears as a precursor of HAp. Octacalcium phosphate formation on commercial apatite is accompanied by carbonate substitution in phosphate positions.
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Affiliation(s)
- P A A P Marques
- Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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