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Mishchenko O, Yanovska A, Kosinov O, Maksymov D, Moskalenko R, Ramanavicius A, Pogorielov M. Synthetic Calcium-Phosphate Materials for Bone Grafting. Polymers (Basel) 2023; 15:3822. [PMID: 37765676 PMCID: PMC10536599 DOI: 10.3390/polym15183822] [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: 08/25/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Synthetic bone grafting materials play a significant role in various medical applications involving bone regeneration and repair. Their ability to mimic the properties of natural bone and promote the healing process has contributed to their growing relevance. While calcium-phosphates and their composites with various polymers and biopolymers are widely used in clinical and experimental research, the diverse range of available polymer-based materials poses challenges in selecting the most suitable grafts for successful bone repair. This review aims to address the fundamental issues of bone biology and regeneration while providing a clear perspective on the principles guiding the development of synthetic materials. In this study, we delve into the basic principles underlying the creation of synthetic bone composites and explore the mechanisms of formation for biologically important complexes and structures associated with the various constituent parts of these materials. Additionally, we offer comprehensive information on the application of biologically active substances to enhance the properties and bioactivity of synthetic bone grafting materials. By presenting these insights, our review enables a deeper understanding of the regeneration processes facilitated by the application of synthetic bone composites.
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Affiliation(s)
- Oleg Mishchenko
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical and Pharmaceutical University, 26, Prosp. Mayakovskogo, 69035 Zaporizhzhia, Ukraine; (O.M.); (O.K.); (D.M.)
| | - Anna Yanovska
- Theoretical and Applied Chemistry Department, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine
| | - Oleksii Kosinov
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical and Pharmaceutical University, 26, Prosp. Mayakovskogo, 69035 Zaporizhzhia, Ukraine; (O.M.); (O.K.); (D.M.)
| | - Denys Maksymov
- Department of Surgical and Propaedeutic Dentistry, Zaporizhzhia State Medical and Pharmaceutical University, 26, Prosp. Mayakovskogo, 69035 Zaporizhzhia, Ukraine; (O.M.); (O.K.); (D.M.)
| | - Roman Moskalenko
- Department of Pathology, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine;
| | - Arunas Ramanavicius
- NanoTechnas-Center of Nanotechnology and Materials Science, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania
| | - Maksym Pogorielov
- Biomedical Research Centre, Sumy State University, R-Korsakova Street, 40007 Sumy, Ukraine;
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas Iela 3, LV-1004 Riga, Latvia
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Shang H, Xu K, Li T, Yang HR, Gao J, Li S, Zhu J, He X, Zhang S, Xu H, Shen B. Bioelectret poly(lactic acid) membranes with simultaneously enhanced physical interception and electrostatic adsorption of airborne PM 0.3. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:132010. [PMID: 37423132 DOI: 10.1016/j.jhazmat.2023.132010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/18/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023]
Abstract
Traditional polymeric fibrous membranes have been extensively used to reduce the health risks caused by airborne particulate matter (PM), leading to the dramatically increasing pollution of plastics and microplastics. Although great efforts have been made to develop poly(lactic acid) (PLA)-based membrane filters, they are frequently dwarfed by their relatively poor electret properties and electrostatic adsorptive mechanisms. To resolve this dilemma, a bioelectret approach was proposed in this work, strategically involving the bioinspired adhesion of dielectric hydroxyapatite nanowhiskers as a biodegradable electret to promote the polarization properties of PLA microfibrous membranes. In addition to significant improvements in tensile properties, the incorporation of hydroxyapatite bioelectret (HABE) enabled remarkable increase in the removal efficiencies of ultrafine PM0.3 in a high-voltage electrostatic field (10 and 25 kV). This was exemplified by the largely increased filtering performance (69.75%, 23.1 Pa) for PLA membranes loaded with 10 wt% HABE at the normal airflow rate (32 L/min) compared to the pristine PLA counterpart (32.89%, 7.2 Pa). Although the filtration efficiency of PM0.3 for the counterpart dramatically decreased to 21.6% at 85 L/min, the increment was maintained at nearly 196% for the bioelectret PLA, while an ultralow pressure drop (74.5 Pa) and high humidity resistance (RH 80%) were achieved. The unusual property combination were ascribed to the HABE-enabled realization of multiple filtration mechanisms, including the simultaneous enhancement of physical interception and electrostatic adsorption. The significant filtration applications, unattainable with conventional electret membranes, demonstrate the bioelectret PLA as a promising biodegradable platform that allows high filtration properties and humidity resistance.
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Affiliation(s)
- Han Shang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Keke Xu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Tian Li
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Hao-Ran Yang
- State Laboratory of Surface and Interface Science and Technology, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Jiefeng Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 272100, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Shihang Li
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Jintuo Zhu
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Xinjian He
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Shenghui Zhang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Huan Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China.
| | - Baolong Shen
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China.
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3
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Nanoparticle coatings for controlled release of quercetin from an angioplasty balloon. PLoS One 2022; 17:e0268307. [PMID: 36001584 PMCID: PMC9401142 DOI: 10.1371/journal.pone.0268307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 07/07/2022] [Indexed: 11/19/2022] Open
Abstract
Peripheral artery disease (PAD) is a systemic vascular disease of the legs that results in a blockage of blood flow from the heart to the lower extremities. Now one of the most common causes of mortality in the U.S., the first line of therapy for PAD is to mechanically open the blockages using balloon angioplasty. Coating the balloons with antiproliferative agents can potentially reduce vessel re-narrowing, or restenosis after surgical intervention, but current drug-coated balloons releasing chemotherapy agents like paclitaxel have in some cases shown increased mortality long-term. Our aim was to design a novel drug-coated balloon using a polymeric nanodelivery system for a sustained release of polyphenols that reduce restenosis but with reduced toxicity compared to chemotherapy agents. Poly (lactic-co-glycolic acid) (PLGA) nanoparticles with entrapped quercetin, a dimethoxy quercetin (rhamnazin), as well as quercetin covalently attached to PLGA, were developed. Balloon catheters were coated with polymeric nanoparticles using an ultrasonic method, and nanoparticle characteristics, drug loading, coating uniformity and drug release were determined. The adhesion of nanoparticles to vascular smooth muscle cells and the antiproliferative effect of nano-delivered polyphenols were also assessed. Of the nanoparticle systems tested, those with covalently attached quercetin provided the most sustained release over a 6-day period. Although these particles adhered to cells to a smaller extent compared to other nanoparticle formulations, their attachment was resistant to washing. These particles also exhibited the greatest anti-proliferative effect. In addition, their attachment was not altered when the cells were grown in calcifying conditions, and in PAD tissue calcification is typically a condition that impedes drug delivery. Moreover, the ultrasonic coating method generated a uniform balloon coating. The polymeric nanoparticle system with covalently attached quercetin developed herein is thus proposed as a promising platform to reduce restenosis post-angioplasty.
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Deng Y, Lu T, Cui J, Ma W, Qu Q, Zhang X, Zhang Y, Zhu M, Xiong R, Huang C. Morphology engineering processed nanofibrous membranes with secondary structure for high-performance air filtration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121093] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Nature-Inspired Effects of Naturally Occurring Trace Element-Doped Hydroxyapatite Combined with Surface Interactions of Mineral-Apatite Single Crystals on Human Fibroblast Behavior. Int J Mol Sci 2022; 23:ijms23020802. [PMID: 35054988 PMCID: PMC8775611 DOI: 10.3390/ijms23020802] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 12/13/2022] Open
Abstract
Innovative engineering design for biologically active hydroxyapatites requires enhancing both mechanical and physical properties, along with biocompatibility, by doping with appropriate chemical elements. Herein, the purpose of this investigation was to evaluate and elucidate the model of naturally occurring hydroxyapatite and the effects of doped trace elements on the function of normal human fibroblasts, representing the main cells of connective tissues. The substrates applied (geological apatites with hexagonal prismatic crystal habit originated from Slyudyanka, Lake Baikal, Russia (GAp) and from Imilchil, The Atlas Mountains, Morocco (YAp)) were prepared from mineral natural apatite with a chemical composition consistent with the building blocks of enamel and enriched with a significant F− content. Materials in the form of powders, extracts and single-crystal plates have been investigated. Moreover, the effects on the function of fibroblasts cultured on the analyzed surfaces in the form of changes in metabolic activity, proliferation and cell morphology were evaluated. Apatite plates were also evaluated for cytotoxicity and immune cell activation capacity. The results suggest that a moderate amount of F− has a positive effect on cell proliferation, whereas an inhibitory effect was attributed to the Cl− concentration. It was found that for (100) GAp plate, fibroblast proliferation was significantly increased, whereas for (001) YAp plate, it was significantly reduced, with no cytotoxic effect and no immune response from macrophages exposed to these materials. The study of the interaction of fibroblasts with apatite crystal surfaces provides a characterization relevant to medical applications and may contribute to the design of biomaterials suitable for medical applications and the evaluation of their bioavailability.
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Oliveira LQC, Delbem ACB, Morais LAD, Gonçalves SC, Souza JAS, Pedrini D. In vitro Evaluation of Surface Free Energy of Dentin after Treatment with Sodium Trimetaphosphate Associated or Not with Fluoride, Exposed or Not to Calcium. Caries Res 2021; 56:81-90. [PMID: 34700319 DOI: 10.1159/000520162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 10/10/2021] [Indexed: 11/19/2022] Open
Abstract
It has been stated that sodium trimetaphosphate (TMP) promotes a more anionic dentin surface inducing greater calcium (Ca) and phosphate precipitation. The aim of the present study was to evaluate in vitro the surface free energy (γs) of dentin after treatment with TMP associated or not with fluoride (F), exposed or not to Ca, as well as the adsorption of TMP, F, and Ca by dentin. Bovine dentin blocks (n = 12 blocks/group) were treated with solutions containing TMP at 0, 1, 3, or 9 (w/v) followed or not by the application of Ca. These solutions were or were not associated to 1,100 ppm F. F, Ca, and TMP were determined in the solutions before and after the treatment to calculate the adsorption by dentin. To analyze the γs of dentin, the apolar (γsLW), and polar (γsAB), components were determined by contact angle measurement. Data were submitted to 2-way ANOVA followed by the Student-Newman-Keuls test (p < 0.05). TMP reduces γs of dentin and increases electron donor sites (γs-). Higher values of γs- led to higher adsorption of Ca (p < 0.001). The F/TMP association did not change γs or γsLW and reduced the values of γs-, but the adsorption of Ca was higher. There was correlation between the adsorption of TMP and γs- (Pearson's r = 0.801; p < 0.001) and F (Pearson's r = 0.871, p < 0.001). It is possible to conclude that TMP increased γs- and Ca adsorption, and reduced γs. The association with F increased the adsorption of TMP without rising γs-; however, there was higher adsorption of Ca.
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Affiliation(s)
- Lenara Queiroz Chaves Oliveira
- Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), School of Dentistry, Araçatuba, Brazil
| | - Alberto Carlos Botazzo Delbem
- Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), School of Dentistry, Araçatuba, Brazil
| | - Leonardo Antônio de Morais
- Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), School of Dentistry, Araçatuba, Brazil
| | - Silvio César Gonçalves
- Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), School of Dentistry, Araçatuba, Brazil
| | | | - Denise Pedrini
- Department of Surgery and Integrated Clinic, São Paulo State University (Unesp), School of Dentistry, Araçatuba, Brazil
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Saito T, Yokoi T, Nakamura A, Matsunaga K. First-principles based theoretical calculations of atomic structures of hydroxyapatite surfaces and their charge states in contact with aqueous solutions. RSC Adv 2021; 11:34004-34014. [PMID: 35497313 PMCID: PMC9042352 DOI: 10.1039/d1ra06311a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/01/2021] [Indexed: 01/09/2023] Open
Abstract
Surface charge states of biomaterials are often important for the adsorption of cells, proteins, and foreign ions on their surfaces, which should be clarified at the atomic and electronic levels. First-principles calculations were performed to reveal thermodynamically stable surface atomic structures and their charge states in hydroxyapatite (HAp). Effects of aqueous environments on the surface stability were considered using an implicit solvation model. It was found that in an air atmosphere, stoichiometric {0001} and P-rich {101̄0} surfaces are energetically favorable, whereas in an aqueous solution, a Ca-rich {101̄0} surface is the most stable. This difference suggests that preferential surface structures strongly depend on chemical environments with and without aqueous solutions. Their surface potentials at zero charge were calculated to obtain the isoelectric points (pHPZC). pHPZC values for the {0001} surface and the Ca-rich {101̄0} surface were obtained to be 4.8 and 8.7, respectively. This indicates that in an aqueous solution at neutral pH, the {0001} and Ca-rich {101̄0} surfaces are negatively and positively charged, respectively. This trend agrees with experimental data from chromatography and zeta potential measurements. Our methodology based on first-principles calculations enables determining macroscopic charge states of HAp surfaces from atomic and electronic levels.
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Affiliation(s)
- T Saito
- Department of Materials Physics, Nagoya University Nagoya 464-8603 Japan
| | - T Yokoi
- Department of Materials Physics, Nagoya University Nagoya 464-8603 Japan
| | - A Nakamura
- Department of Materials Physics, Nagoya University Nagoya 464-8603 Japan
| | - K Matsunaga
- Department of Materials Physics, Nagoya University Nagoya 464-8603 Japan .,Nanostructures Research Laboratory, Japan Fine Ceramics Center Nagoya 456-8587 Japan
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8
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Nalin EKP, Danelon M, da Silva ES, Hosida TY, Pessan JP, Delbem ACB. Surface Free Energy, Interaction, and Adsorption of Calcium and Phosphate to Enamel Treated with Trimetaphosphate and Glycerophosphate. Caries Res 2021; 55:496-504. [PMID: 34517365 DOI: 10.1159/000518943] [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: 08/02/2020] [Accepted: 08/02/2021] [Indexed: 11/19/2022] Open
Abstract
This study aimed to evaluate the surface (γs) and interaction (ΔGiwi) free energy and calcium (Ca2+) and phosphate (PO43-) adsorption to dental enamel treated with sodium trimetaphosphate (TMP) or calcium glycerophosphate (CaGP) that had or had not been exposed to CaPO4-containing solutions. Bovine enamel blocks (n = 192; 24 blocks/group) were treated (2 mL/block; 2 min) with TMP (0%, 1%, 3%, and 9%) and CaGP (0, 0.25, 0.5, and 1%) or exposed to a CaPO4-containing solution. The adsorption of these compounds by enamel was assessed before and after treatment. γs and ΔGiwi and their apolar (γsLW and ΔGiwiLW) and polar (γsAB and ΔGiwiAB) components and acid-base interactions (γs+/γs-) were determined by the contact angles. The data were subjected to ANOVA, followed by the Student-Newman-Keuls test (p < 0.05). The adsorption of TMP was dose dependent (p < 0.001), and it reduced γs and γsAB and increased ΔGiwiAB (ΔGiwi > 0) and γs- when compared with the group without TMP (p < 0.001). The immersion in CaPO4-containing solution increased γs and γsAB and reduced ΔGiwiAB (ΔGiwi > 0) and γs- (p < 0.001). There was a correlation between the adsorption of TMP and Ca2+ (r = 0.916; p < 0.001) and PO43- (r = 0.899; p < 0.001). The adsorption of CaGP on the enamel was dose dependent (p < 0.001), reducing γs, ΔGiwiAB (ΔGiwi < 0), γsLW, and γs- when compared to the group without CaGP (p < 0.001). When exposed to the CaPO4-containing solution, there was an increase in ΔGiwiAB (ΔGiwi > 0), γsLW, and γs- and a decrease in γsAB (p < 0.001) without adsorption of Ca2+ by enamel. It may be concluded that TMP and CaGP were adsorbed onto the enamel, producing hydrophilic and hydrophobic surfaces, respectively. TMP produces electron donor sites that induce Ca2+ adsorption, while CaGP releases Ca2+ into the medium.
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Affiliation(s)
- Emanuelle Karine Prado Nalin
- Department of Preventive and Restorative Dentistry, School of Dentistry, Araçatuba, São Paulo State University (Unesp), Araçatuba, Brazil
| | - Marcelle Danelon
- Department of Preventive and Restorative Dentistry, School of Dentistry, Araçatuba, São Paulo State University (Unesp), Araçatuba, Brazil
| | - Emanuel Soares da Silva
- Department of Preventive and Restorative Dentistry, School of Dentistry, Araçatuba, São Paulo State University (Unesp), Araçatuba, Brazil
| | - Thayse Yumi Hosida
- Department of Preventive and Restorative Dentistry, School of Dentistry, Araçatuba, São Paulo State University (Unesp), Araçatuba, Brazil
| | - Juliano Pelim Pessan
- Department of Preventive and Restorative Dentistry, School of Dentistry, Araçatuba, São Paulo State University (Unesp), Araçatuba, Brazil
| | - Alberto Carlos Botazzo Delbem
- Department of Preventive and Restorative Dentistry, School of Dentistry, Araçatuba, São Paulo State University (Unesp), Araçatuba, Brazil
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Plesselova S, Garcia-Cerezo P, Blanco V, Reche-Perez FJ, Hernandez-Mateo F, Santoyo-Gonzalez F, Giron-Gonzalez MD, Salto-Gonzalez R. Polyethylenimine-Bisphosphonate-Cyclodextrin Ternary Conjugates: Supramolecular Systems for the Delivery of Antineoplastic Drugs. J Med Chem 2021; 64:12245-12260. [PMID: 34369757 PMCID: PMC8477368 DOI: 10.1021/acs.jmedchem.1c00887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bisphosphonates (BPs) are bone-binding molecules that provide targeting capabilities to bone cancer cells when conjugated with drug-carrying polymers. This work reports the design, synthesis, and biological evaluation of polyethyleneimine-BP-cyclodextrin (PEI-BP-CD) ternary conjugates with supramolecular capabilities for the loading of antineoplastic drugs. A straightforward, modular, and versatile strategy based on the click aza-Michael addition reaction of vinyl sulfones (VSs) allows the grafting of BPs targeting ligands and βCD carrier appendages to the PEI polymeric scaffold. The in vitro evaluation (cytotoxicity, cellular uptake, internalization routes, and subcellular distribution) for the ternary conjugates and their doxorubicin inclusion complexes in different bone-related cancer cell lines (MC3T3-E1 osteoblasts, MG-63 sarcoma cells, and MDA-MB-231 breast cancer cells) confirmed specificity, mitochondrial targeting, and overall capability to mediate a targeted drug transport to those cells. The in vivo evaluation using xenografts of MG-63 and MDA-MB-231 cells on mice also confirmed the targeting of the conjugates.
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Affiliation(s)
- Simona Plesselova
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Pablo Garcia-Cerezo
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Victor Blanco
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Francisco J Reche-Perez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Fernando Hernandez-Mateo
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Biotechnology Institute, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Francisco Santoyo-Gonzalez
- Department of Organic Chemistry, School of Sciences, University of Granada, E-18071 Granada, Spain.,Biotechnology Institute, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - María Dolores Giron-Gonzalez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
| | - Rafael Salto-Gonzalez
- Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, E-18071 Granada, Spain.,Unit of Excellence in Chemistry Applied to Biomedicine and the Environment of the University of Granada, E-18071 Granada, Spain
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10
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Hydroxyapatite Coatings on Calcite Powder for the Removal of Heavy Metals from Contaminated Water. WATER 2021. [DOI: 10.3390/w13111493] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An approach for the remediation of heavy metal-contaminated wastewater that is gaining increasing attention is the application of hydroxyapatite (HAP)-based particles. HAP is conventionally synthesized through wet chemical precipitation of calcium and phosphate ions, although later studies have focused on HAP synthesis from solid calcite contacted with a phosphate solution under ambient conditions. This synthesis route can allow saving soluble Ca-chemicals and, thus, make the process more cost-efficient. The aim of this study was to coat natural calcite powder with a layer of HAP for the removal of Zn and Cu from contaminated water. For this purpose, a HAP layer was synthesized on calcite particles, characterized using several complementary techniques and evaluated for the removal of Zn and Cu from synthetic solutions. Sorption kinetics and equilibrium isotherms, as well as the effect of sonication of the synthesized sample on its sorption performance, were determined. The results showed that calcite particles were efficiently coated with a HAP layer with high capacity in removing Zn and Cu from acidic solutions, with a qmax of 34.97 mg/g for Zn (increased to 37.88 g/mg after sonication of the sample) and 60.24 mg/g for Cu (which hardly varied with sonication). The mechanisms behind the sorption of Zn and Cu onto HAP, inferred from pH changes, the relation between metal uptake and Ca2+ release and XRD analysis, included surface complexation, ion exchange and precipitation of new Zn- and Cu-containing phases.
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11
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Effect of the Porosity, Roughness, Wettability, and Charge of Micro-Arc Coatings on the Efficiency of Doxorubicin Delivery and Suppression of Cancer Cells. COATINGS 2020. [DOI: 10.3390/coatings10070664] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Porous calcium phosphate coatings were formed by the micro-arc oxidation method on the surface of titanium for the loading and controlled release of the anticancer drug doxorubicin. The coatings’ morphology and microstructure were examined by scanning electron microscopy. The phase composition was determined with the help of X-ray diffraction analysis. Studies of the hydrophilic properties of the coatings and their zeta potential were carried out. Data on the kinetics of doxorubicin adsorption-desorption were obtained. In addition, the effect of calcium phosphate coatings impregnated with doxorubicin on the viability of the Neuro-2a cell line was revealed. The coating formed at low voltages of 200–250 V contained a greater number of branched communicating pores, and therefore they were able to adsorb a greater amount of doxorubicin. The surface charge also contributes to the process of the adsorption-desorption of doxorubicin, but this effect is not fully understood and further studies are required to identify it.
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Ullah I, Zhang W, Yang L, Ullah MW, Atta OM, Khan S, Wu B, Wu T, Zhang X. Impact of structural features of Sr/Fe co-doped HAp on the osteoblast proliferation and osteogenic differentiation for its application as a bone substitute. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110633. [PMID: 32204069 DOI: 10.1016/j.msec.2020.110633] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/27/2019] [Accepted: 01/02/2020] [Indexed: 01/07/2023]
Abstract
The potential of external ions doped biomaterials has been extensively explored; however, the co-doped biomaterials remain typically unexplored for their biological properties for precise biomedical applications. The current study was aimed to explore the impact of structural features of Sr/Fe co-doped hydroxyapatite (HAp) bionanomaterial on osteoblastic proliferation and osteogenic differentiation for its application as a bone substitute. A 10 mol% isomorphous co-doping of strontium and iron with respect to calcium was carried into HAp in the solid solution. Raman spectroscopy verified the presence of major functional groups of apatite structure together with the carbonate peaks. The Sr/Fe co-doped HAp bionanomaterials showed slightly negative zeta potential (at neutral pH), versatile DLS particle size (140-205 nm), high BET surface area (186 m2/g), and narrow width pore size (13-19 nm). TG/DTA analysis showed low thermal stability of the Sr/Fe co-doped HAp groups. The nanoparticles showed an initial burst release of amoxicillin for 15 h followed by extended-release up to 81 h and demonstrated an excellent antibacterial activity by producing inhibition zones of 17.6 ± 0.3 mm and 19.5 mm ± 0.4 mm for Escherichia coli and Staphylococcus aureus. Live/dead cell staining and MTT assay confirmed the non-toxic nature of Sr/Fe co-doped HAp bionanomaterial towards MC3T3-E1 cells. Further, an improved ALP activity, increased calcium deposition, enhanced RUNX2 expression, and regulated OPN and OCN expression levels suggest in MC3T3-E1 cells demonstrate the maturation of osteoblasts. This study provides the unique advantages of the co-doping approach for the applications Sr/Fe co-doped HAp bionanomaterials as a bone substitute.
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Boda SK, Wang H, John JV, Reinhardt RA, Xie J. Dual Delivery of Alendronate and E7-BMP-2 Peptide via Calcium Chelation to Mineralized Nanofiber Fragments for Alveolar Bone Regeneration. ACS Biomater Sci Eng 2020; 6:2368-2375. [PMID: 33455340 DOI: 10.1021/acsbiomaterials.0c00145] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The fixation and stability of dental implants is governed by the quality of the underlying alveolar bone. The current study investigates if the dual delivery of calcium chelating bone therapeutics from mineralized nanofiber fragments can help regenerate alveolar bone in vivo. Alendronate (ALN) or/and bone morphogenetic protein-2-mimicking peptide conjugated to a heptaglutamate moiety (E7-BMP-2) were incorporated onto mineralized nanofiber fragments of polylactide-co-glycolide-collagen-gelatin (PCG in 2:1:1 weight ratios) via calcium coupling/chelation. Two mg of the single-loaded (ALN) and coloaded (ALN + E7-BMP-2) mineralized nanofiber PCG grafts was filled into critical-sized (2 mm diameter × 2 mm depth) alveolar bone defects in rat maxillae and let heal for 4 weeks. X-ray microcomputed tomography analysis of the retrieved maxillae revealed significantly elevated new bone formation parameters for the ALN and ALN + E7-BMP-2 groups compared with the unfilled defect controls. However, no significant differences between the single and coloaded nanofiber grafts were noted. Furthermore, the histopathological analysis of the tissue sections divulged islands of new bone tissue in the ALN and ALN + E7-BMP-2 groups, whereas the control defect was covered with gingival tissue. Together, the presented strategy using mineralized nanofiber fragments in the sustained delivery of dual calcium chelating therapeutics could have potential applications in enhancing bone regeneration.
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Affiliation(s)
- Sunil Kumar Boda
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,Minnesota Dental Research Center for Biomaterials and Biomechanics (MDRCBB), Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Hongjun Wang
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Johnson V John
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Richard A Reinhardt
- Department of Surgical Specialties, College of Dentistry, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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Colaço E, Brouri D, Méthivier C, Valentin L, Oudet F, El Kirat K, Guibert C, Landoulsi J. Calcium phosphate mineralization through homogenous enzymatic catalysis: Investigation of the early stages. J Colloid Interface Sci 2019; 565:43-54. [PMID: 31931298 DOI: 10.1016/j.jcis.2019.12.097] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 01/02/2023]
Abstract
HYPOTHESIS The crystallization of calcium phosphate (CaP) is a ubiquitous process that occurs in several mineralized tissues and involves a variety of biochemical and chemical reactions. This issue has been hitherto continuously studied from supersaturated solutions (chemical procedure), i.e. by adding calcium and orthophosphate ions in a homogenous phase. Yet, both in vivo and in vitro investigations have clearly shown the implication of enzymes, namely alkaline phosphatase (ALP), to initiate the mineralization process by generating orthophosphate ions. EXPERIMENTS We report a thorough investigation on the mechanism of enzyme-induced mineralization in homogenous phase (enzymatic procedure). For this purpose, ALP is introduced in Ca2+/Mg2+-containing solution (pH = 7.4; 37 °C), and its activity modulated by the concentration of its substrate. FINDINGS Results show that after 24 h of mineralization both chemical and enzymatic procedures lead to the formation of well-crystalline hydroxyapatite nano-objects, however with noticeable impact on their shape and dimensions. Remarkably enough, by combining in situ monitoring and ex situ characterizations, we identify several intermediate phases, including amorphous phase, dicalcium phosphate dehydrate phase (DCPD or brushite) and Whitlockite (WH). Besides, mineralized nano-objects with a core-shell structure is observed, and hydroxyapatite platelets are shown to grow on the surface of their shell.
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Affiliation(s)
- E Colaço
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France
| | - D Brouri
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - C Méthivier
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - L Valentin
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - F Oudet
- Service d'analyse physico-chimique, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France
| | - K El Kirat
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France
| | - C Guibert
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - J Landoulsi
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France; Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France.
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Colaço E, Brouri D, Aissaoui N, Cornette P, Dupres V, Domingos RF, Lambert JF, Maisonhaute E, Kirat KE, Landoulsi J. Hierarchical Collagen–Hydroxyapatite Nanostructures Designed through Layer-by-Layer Assembly of Crystal-Decorated Fibrils. Biomacromolecules 2019; 20:4522-4534. [DOI: 10.1021/acs.biomac.9b01299] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Elodie Colaço
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France CNRS 7154, 75205 Paris, Cedex 05, France
| | - Dalil Brouri
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - Nesrine Aissaoui
- Centre de Biochimie Structurale, CNRS, INSERM, Université de Montpellier, 34090 Montpellier, France
| | - Pauline Cornette
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - Vincent Dupres
- Cellular Microbiology and Physics of Infections−Lille Center for Infection and Immunity, Institut Pasteur de Lille-CNRS-INSERM U1019-CHRU Lille, University of Lille, Lille, France
| | - Rute F. Domingos
- Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, CNRS, 75205 Paris, Cedex 05, France
| | - Jean-François Lambert
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
| | - Emmanuel Maisonhaute
- Sorbonne Université, CNRS, Laboratoire Interfaces et Systèmes Electrochimiques, F-75005 Paris, France
| | - Karim El Kirat
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France CNRS 7154, 75205 Paris, Cedex 05, France
| | - Jessem Landoulsi
- Laboratoire de Biomécanique & Bioingénierie, CNRS, Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne Cedex, France CNRS 7154, 75205 Paris, Cedex 05, France
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface, F-75005 Paris, France
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Son J, Kim J, Lee K, Hwang J, Choi Y, Seo Y, Jeon H, Kang HC, Woo HM, Kang BJ, Choi J. DNA aptamer immobilized hydroxyapatite for enhancing angiogenesis and bone regeneration. Acta Biomater 2019; 99:469-478. [PMID: 31494292 DOI: 10.1016/j.actbio.2019.08.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/28/2019] [Accepted: 08/30/2019] [Indexed: 12/15/2022]
Abstract
In this study, we developed aptamer-conjugated hydroxyapatite (Apt-HA) that promotes bone regeneration and angiogenesis. The 3R02 bivalent aptamer specific to vascular endothelial growth factor (VEGF) was grafted to the hydroxyapatite (HA) surface. Apt-HA was tested for its VEGF protein capture ability to determine the optimal aptamer concentration immobilized on the HA. Apt-HA showed higher VEGF protein capture ability, and faster growth of human umbilical vein endothelial cell (HUVEC) compared to a neat HA with no cytotoxic effects on human osteoblasts. To examine in vivo angiogenesis and bone regeneration, Apt-HA and HA were bilaterally implanted into rabbit tibial metaphyseal defects and analyzed after eight weeks using micro-CT, histology, and histomorphometry. Apt-HA showed significantly increased the volume of new bones, the percentage of bone, and the density of bone mineral in cortical bone. Apt-HA also exhibited the enhanced bone formation at the cortical region in a histomorphometric analysis. Finally, Apt-HA showed significantly increased blood vessel number compared to a neat HA. In summary, the engineered Apt-HA has potential as a bone graft material that may simultaneously promote bone regeneration and angiogenesis. STATEMENT OF SIGNIFICANCE: This work presents a functional hydroxyapatite bone graft using a DNA-based aptamer which overcomes the limitations of existing bone graft materials, which use bound signaling peptides. DNA aptamer immobilized hydroxyapatite enhances the in vitro proliferation of human umbilical vascular endothelial cells as well as in vivo angiogenesis and bone regeneration. DNA aptamer immobilized hydroxyapatite shows no cytotoxic effect on human osteoblasts.
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Salaie RN, Besinis A, Le H, Tredwin C, Handy RD. The biocompatibility of silver and nanohydroxyapatite coatings on titanium dental implants with human primary osteoblast cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110210. [PMID: 31761164 DOI: 10.1016/j.msec.2019.110210] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/30/2019] [Accepted: 09/16/2019] [Indexed: 12/22/2022]
Abstract
Silver nanoparticles (Ag NPs) are antimicrobial, with potential uses in medical implants, but Ag NPs alone can also be toxic to mammalian cells. This study aimed to enhance the biocompatibility of Ag NP-coated titanium dental implants with hydroxyapatite (HA) applied to the surface. Ti6Al4V discs were coated with Ag NPs, Ag NPs plus HA nanoparticles (Ag + nHA), or Ag NPs plus HA microparticles (Ag + mHA). The stability of coatings was explored and the biocompatibility with primary human osteoblasts over 7 days. Results showed that Ti6Al4V discs were successfully coated with silver and HA. The primary particle size of nHA and mHA were 23.90 ± 1.49 nm and 4.72 ± 0.38 μm respectively. Metal analysis showed that underlying silver coatings remain stable in DMEM culture media, but the presence of FBS in the media caused some initial (clinically beneficial) release of dissolved silver. With additions of HA, osteoblasts were adherent, had normal morphology, negligible lactate dehydrogenase (LDH) leak, and showed alkaline phosphatase (ALP) activity. Cell viability was around 70% throughout the Ag + nHA treatment. Overall, the implants coated with Ag + nHA maintained a higher degree of biocompatibility compared to those coated with Ag + mHA, or Ag NPs alone, suggesting the former has a benefit for clinical use.
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Affiliation(s)
- Ranj Nadhim Salaie
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, UK; Plymouth University Peninsula Schools of Medicine and Dentistry, University of Plymouth, UK
| | - Alexandros Besinis
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, UK; School of Engineering, Faculty of Science and Engineering, University of Plymouth, UK; Plymouth University Peninsula Schools of Medicine and Dentistry, University of Plymouth, UK
| | - Huirong Le
- School of Mechanical Engineering and Built Environment, College of Engineering and Technology, University of Derby, UK
| | - Christopher Tredwin
- Plymouth University Peninsula Schools of Medicine and Dentistry, University of Plymouth, UK
| | - Richard D Handy
- School of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, UK; Visiting Professor, Department of Nutrition, Cihan University-Erbil, Kurdistan Region, Iraq.
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Prongmanee W, Alam I, Asanithi P. Hydroxyapatite/Graphene oxide composite for electrochemical detection of L-Tryptophan. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Moussa DG, Kirihara JA, Ye Z, Fischer NG, Khot J, Witthuhn BA, Aparicio C. Dentin Priming with Amphipathic Antimicrobial Peptides. J Dent Res 2019; 98:1112-1121. [PMID: 31313946 DOI: 10.1177/0022034519863772] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The evolution of bonded restorations has undergone great progress over several decades. Nonetheless, life spans of bonded restorations are limited mainly because of the eventual incidence of recurrent caries. Over time, water and waterborne agents (acids, enzymes) degrade the components of the dentin/restoration interface, allowing bacterial colonization and dentin reinfection at the margins of the restoration. We developed a 2-tier protective technology consisting of priming/coating dentin with amphipathic and antimicrobial peptides (AAMPs) to obtain hydrophobic/water-repellent and antibiofilm dentin-resisting recurrent caries around bonded restorations. We tested a series of AAMPs to assess their structure-function relationships as well as the effects of different dentin-conditioning methods on the structural features of AAMP-coated dentin. We found relation between the secondary structure of AAMPs (high portion of β-sheet), the antimicrobial potency of AAMPs, and the AAMPs' ability to form hydrophobic coatings on dentin. We also determined that AAMPs had preferential adsorption on the mineral phase of dentin, which suggested that peptides arrange their cationic and hydrophilic motifs in direct contact with the negatively charged minerals in the hydrophilic dentin. These results led us to explore different dentin-conditioning methods that would increase the mineral/collagen ratio and their effect on AAMP immobilization. We innovatively imaged the spatial distribution of the AAMPs in relation to the dentinal tubules and collagen network using a minimally invasive multimodal imaging technique: multiphoton-second harmonic generation. Using multiphoton-second harmonic generation imaging, we determined that partial deproteinization of dentin increased the amount of immobilized AAMPs as compared with the total etched dentin at the dentin surface and extended deeply around dentinal tubules. Last, we analyzed the release rate of AAMPs from dentin coatings in artificial saliva to predict their stability in the clinical setting. In conclusion, priming dentin with AAMPs is a versatile new approach with potential to fortify the otherwise vulnerable adhesive-based interfaces.
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Affiliation(s)
- D G Moussa
- 1 MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
| | - J A Kirihara
- 2 Center for Mass Spectrometry and Proteomics, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Z Ye
- 1 MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
| | - N G Fischer
- 1 MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
| | - J Khot
- 1 MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
| | - B A Witthuhn
- 2 Center for Mass Spectrometry and Proteomics, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - C Aparicio
- 1 MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
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Chahkandi M, Arami SRS, Mirzaei M, Mahdavi B, Hosseini-Tabar SM. A new effective nano-adsorbent and antibacterial material of hydroxyapatite. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1546-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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22
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Elaboration of hydroxyapatite nanoparticles and chitosan/hydroxyapatite composites: a present status. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2483-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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23
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Characterization of Sn-Apatites and 99mTcO4 – anions removal from aqueous solutions. ACTA CHIMICA SLOVACA 2018. [DOI: 10.2478/acs-2018-0011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Apatite is a natural mineral from the group of phosphate minerals. It originates primarily in rocks and converted limestones. It is also one of the few minerals produced and used by microeconomic systems. Due to its low solubility in water and high sorption capacity, apatite is a suitable sorbent for heavy metals and radionuclides removal from aqueous radioactive waste. Increasing amount of radioactive waste (RAW) has a negative impact on human health as well as on the environment. Production of RAW is constantly increasing because of the use of nuclear energy as well as by the development of nuclear medicine. The aim of this work was to study the effect of pH and various anions on the sorption of pertechnetate anions from aqueous solution to Sn-Apatite. Sn-Apatite samples used in the experiment were prepared by the wet precipitation method and adsorption of 99mTc was monitored by the radioisotope indication method. Sorption experiments were performed using the batch method. It was found that the sorption percentage was higher than 90 % in all Sn-Apatite samples and the dissociation constant, KD, indicated high affinity of pertechnetate anions to the solid Sn-Apatite particles. The presence of competing anions did not significantly influence the ability of Sn-Apatite materials to adsorb 99mTcO4 - from aqueous solutions.
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Neves JG, Danelon M, Pessan JP, Figueiredo LR, Camargo ER, Delbem ACB. Surface free energy of enamel treated with sodium hexametaphosphate, calcium and phosphate. Arch Oral Biol 2018; 90:108-112. [DOI: 10.1016/j.archoralbio.2018.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/16/2018] [Accepted: 03/18/2018] [Indexed: 10/17/2022]
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25
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Mondal S, Dorozhkin SV, Pal U. Recent progress on fabrication and drug delivery applications of nanostructured hydroxyapatite. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 10:e1504. [PMID: 29171173 DOI: 10.1002/wnan.1504] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/01/2017] [Accepted: 10/11/2017] [Indexed: 01/19/2023]
Abstract
Through this brief review, we provide a comprehensive historical background of the development of nanostructured hydroxyapatite (nHAp), and its application potentials for controlled drug delivery, drug conjugation, and other biomedical treatments. Aspects associated with efficient utilization of hydroxyapatite (HAp) nanostructures such as their synthesis, interaction with drug molecules, and other concerns, which need to be resolved before they could be used as a potential drug carrier in body system, are discussed. This review focuses on the evolution of perceptions, practices, and accomplishments in providing improved delivery systems for drugs until date. The pioneering developments that have presaged today's fascinating state of the art drug delivery systems based on HAp and HAp-based composite nanostructures are also discussed. Special emphasis has been given to describe the application and effectiveness of modified HAp as drug carrier agent for different diseases such as bone-related disorders, carriers for antibiotics, anti-inflammatory, carcinogenic drugs, medical imaging, and protein delivery agents. As only a very few published works made comprehensive evaluation of HAp nanostructures for drug delivery applications, we try to cover the three major areas: concepts, practices and achievements, and applications, which have been consolidated and patented for their practical usage. The review covers a broad spectrum of nHAp and HAp modified inorganic drug carriers, emphasizing some of their specific aspects those needed to be considered for future drug delivery applications. This article is categorized under: Implantable Materials and Surgical Technologies > Nanomaterials and Implants Therapeutic Approaches and Drug Discovery > Nanomedicine for Respiratory Disease Nanotechnology Approaches to Biology > Cells at the Nanoscale.
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Affiliation(s)
- Sudip Mondal
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | | | - Umapada Pal
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
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26
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Erdem A, Congur G. Hydroxyapatite Nanoparticles Modified Graphite Electrodes for Electrochemical DNA Detection. ELECTROANAL 2017. [DOI: 10.1002/elan.201700462] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Arzum Erdem
- Ege University, Faculty of Pharmacy, Analytical Chemistry Department; 35100 Bornova, Izmir Turkey
| | - Gulsah Congur
- Ege University, Faculty of Pharmacy, Analytical Chemistry Department; 35100 Bornova, Izmir Turkey
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28
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Efficacy of a mouthrinse based on hydroxyapatite to reduce initial bacterial colonisation in situ. Arch Oral Biol 2017; 80:18-26. [DOI: 10.1016/j.archoralbio.2017.03.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 02/15/2017] [Accepted: 03/17/2017] [Indexed: 12/30/2022]
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29
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Adsorption of Chromium (VI) on Calcium Phosphate: Mechanisms and Stability Constants of Surface Complexes. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7030222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Zhang H, Qing F, Zhao H, Fan H, Liu M, Zhang X. Cellular internalization of rod-like nano hydroxyapatite particles and their size and dose-dependent effects on pre-osteoblasts. J Mater Chem B 2017; 5:1205-1217. [DOI: 10.1039/c6tb01401a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We investigated the size/dose effects of n-HA on pre-osteoblasts, tracked the n-HA migration under TEM, and quantified extracellular and intracellular [Ca2+].
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Affiliation(s)
- Huaifa Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- Faculty of Dentistry
| | - Fangzhu Qing
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Huan Zhao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Ming Liu
- Analytical & Testing Center
- Sichuan University
- Chengdu 610064
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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31
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From prevention of pin-tract infection to treatment of osteomyelitis during paediatric external fixation. J Child Orthop 2016; 10:605-612. [PMID: 27848193 PMCID: PMC5145837 DOI: 10.1007/s11832-016-0787-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 10/19/2016] [Indexed: 02/06/2023] Open
Abstract
Pin-tract infection (PTI) is the most commonly expected problem, or even an almost inevitable complication, when using external fixation. Left unteated, PTI will progress unavoidably, lead to mechanical pin loosening, and ultimately cause instability of the external fixator pin-bone construct. Thus, PTI remains a clinical challenge, specifically in cases of limb lengthening or deformity correction. Standardised pin site protocols which encompass an understanding of external fixator biomechanics and meticulous surgical technique during pin and wire insertion, postoperative pin site care and pin removal could limit the incidence of major infections and treatment failures. Here we discuss concepts regarding the epidemiology, physiopathology and microbiology of PTI in paediatric populations, as well as the clinical presentations, diagnosis, classification and treatment of these infections.
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Pizzoccaro MA, Nikel O, Sene S, Philippe C, Mutin PH, Bégu S, Vashishth D, Laurencin D. Adsorption of benzoxaboroles on hydroxyapatite phases. Acta Biomater 2016; 41:342-50. [PMID: 27282646 PMCID: PMC4969180 DOI: 10.1016/j.actbio.2016.06.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/29/2016] [Accepted: 06/04/2016] [Indexed: 12/20/2022]
Abstract
UNLABELLED Benzoxaboroles are a family of molecules that are finding an increasing number of applications in the biomedical field, particularly as a "privileged scaffold" for the design of new drugs. Here, for the first time, we determine the interaction of these molecules with hydroxyapatites, in view of establishing (i) how benzoxaborole drugs may adsorb onto biological apatites, as this could impact on their bioavailability, and (ii) how apatite-based materials can be used for their formulation. Studies on the adsorption of the benzoxaborole motif (C7H7BO2, referred to as BBzx) on two different apatite phases were thus performed, using a ceramic hydroxyapatite (HAceram) and a nanocrystalline hydroxyapatite (HAnano), the latter having a structure and composition more similar to the one found in bone mineral. In both cases, the grafting kinetics and mechanism were studied, and demonstration of the surface attachment of the benzoxaborole under the form of a tetrahedral benzoxaborolate anion was established using (11)B solid state NMR (including (11)B-(31)P correlation experiments). Irrespective of the apatite used, the grafting density of the benzoxaborolates was found to be low, and more generally, these anions demonstrated a poor affinity for apatite surfaces, notably in comparison with other anions commonly found in biological media, such as carboxylates and (organo)phosphates. The study was then extended to the adsorption of a molecule with antimicrobial and antifungal properties (3-piperazine-bis(benzoxaborole)), showing, on a more general perspective, how hydroxyapatites can be used for the development of novel formulations of benzoxaborole drugs. STATEMENT OF SIGNIFICANCE Benzoxaboroles are an emerging family of molecules which have attracted much attention in the biomedical field, notably for the design of new drugs. However, the way in which these molecules, once introduced in the body, may interact with bone mineral is still unknown, and the possibility of associating benzoxaboroles to calcium phosphates for drug-formulation purposes has not been looked into. Here, we describe the first study of the adsorption of benzoxaboroles on hydroxyapatite, which is the main mineral phase present in bone. We describe the mode of grafting of benzoxaboroles on this material, and show that they only weakly bind to its surface, especially in comparison to other ionic species commonly found in physiological media, such as phosphates and carboxylates. This demonstrates that administered benzoxaborole drugs are unlikely to remain adsorbed on hydroxyapatite surfaces for long periods of time, which means that their biodistribution will not be affected by such phenomena. Moreover, this work shows that the formulation of benzoxaborole drugs by association to calcium phosphates like hydroxyapatite will lead to a rapid release of the molecules.
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Affiliation(s)
- Marie-Alix Pizzoccaro
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Ondrej Nikel
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France; Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States
| | - Saad Sene
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Coralie Philippe
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - P Hubert Mutin
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Sylvie Bégu
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France
| | - Deepak Vashishth
- Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, United States
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier, UMR 5253, CNRS-UM-ENSCM, Place E. Bataillon, CC1701, 34095 Montpellier cedex 05, France.
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Mao J, Shi X, Wu YB, Gong SQ. Identification of Specific Hydroxyapatite {001} Binding Heptapeptide by Phage Display and Its Nucleation Effect. MATERIALS 2016; 9:ma9080700. [PMID: 28773822 PMCID: PMC5512522 DOI: 10.3390/ma9080700] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 08/12/2016] [Accepted: 08/15/2016] [Indexed: 12/03/2022]
Abstract
With recent developments of molecular biomimetics that combine genetic engineering and nanotechnology, peptides can be genetically engineered to bind specifically to inorganic components and execute the task of collagen matrix proteins. In this study, using biogenous tooth enamel as binding substrate, we identified a new heptapeptide (enamel high-affinity binding peptide, EHBP) from linear 7-mer peptide phage display library. Through the output/input affinity test, it was found that EHBP has the highest affinity to enamel with an output/input ratio of 14.814 × 10−7, while a random peptide (RP) displayed much lower output/input ratio of 0.00035 × 10−7. This binding affinity was also verified by confocal laser scanning microscopy (CLSM) analysis. It was found that EHBP absorbing onto the enamel surface exhibits highest normalized fluorescence intensity (5.6 ± 1.2), comparing to the intensity of EHBP to enamel longitudinal section (1.5 ± 0.9) (p < 0.05) as well as to the intensity of a low-affinity binding peptide (ELBP) to enamel (1.5 ± 0.5) (p < 0.05). Transmission electron microscopy (TEM), Attenuated total Reflection-Fourier transform infrared spectroscopy (ATR-FTIR), and X-ray Diffraction (XRD) studies further confirmed that crystallized hydroxyapatite were precipitated in the mineralization solution containing EHBP. To better understand the nucleation effect of EHBP, EHBP was further investigated on its interaction with calcium phosphate clusters through in vitro mineralization model. The calcium and phosphate ion consumption as well as zeta potential survey revealed that EHBP might previously adsorb to phosphate (PO43−) groups and then initiate the precipitation of calcium and phosphate groups. This study not only proved the electrostatic interaction of phosphate group and the genetically engineering solid-binding peptide, but also provided a novel nucleation motif for potential applications in guided hard tissue biomineralization and regeneration.
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Affiliation(s)
- Jing Mao
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Xin Shi
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Ya-Bo Wu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Shi-Qiang Gong
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Müller WE, Tolba E, Schröder HC, Muñoz-Espí R, Diehl-Seifert B, Wang X. Amorphous polyphosphate-hydroxyapatite: A morphogenetically active substrate for bone-related SaOS-2 cells in vitro. Acta Biomater 2016; 31:358-367. [PMID: 26654764 DOI: 10.1016/j.actbio.2015.11.060] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/24/2015] [Accepted: 11/29/2015] [Indexed: 12/22/2022]
Abstract
There is increasing evidence that inorganic calcium-polyphosphates (polyP) are involved in human bone hydroxyapatite (HA) formation. Here we investigated the morphology of the particles, containing calcium phosphate (CaP) with different concentrations of various Na-polyP concentrations, as well as their effects in cell culture. We used both SaOS-2 cells and human mesenchymal stem cells. The polymeric phosphate readily binds calcium ions under formation of insoluble precipitates. We found that addition of low concentrations of polyP (<10wt.%, referred to the CaP deposits) results in an increased size of the HA crystals. Surprisingly, at higher polyP concentrations (>10wt.%) the formation of crystalline HA is prevented and amorphous polyP/HA hybrid particles with a size of ≈50nm are formed, most likely consisting of polyP molecules linked via Ca(2+) bridges to the surface of the CaP deposits. Further studies revealed that the polyP-CaP particles cause a strong upregulation of the expression of the genes encoding for two marker proteins of bone formation, collagen type I and alkaline phosphatase. Based on their morphogenetic activity the amorphous polyP-CaP particles offer a promising material for the development of bone implants, formed from physiological inorganic precursors/polymers. STATEMENT OF SIGNIFICANCE Hydroxyapatite (HA) is a naturally occurring mineral of vertebrate bone. Natural HA, a bio-ceramic material which is crystalline to different scale, has been used as a biomaterial to fabricate scaffolds for in situ bone regeneration and other tissue engineering purposes. In contrast to natural HA, synthetic apatite is much less effective. In general, while HA is bioactive, its interaction and biocompatibility with existing bone tissue is low. These properties have been attributed to a minimal degradability in the physiological environment. In the present study we introduce a new Ca-phosphate (CaP) fabrication technology, starting from calcium chloride and dibasic ammonium phosphate with the HA characteristic Ca/P molar ratio of 10:6 and report that after addition >10% (by weight) of polyphosphate (polyP) amorphous CaP/HA samples were obtained. Those samples elicits strong morphogenetic activity let us to conclude that polyP/HA-based material might be beneficial for application as bone substitute implant.
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Espanol M, Mestres G, Luxbacher T, Dory JB, Ginebra MP. Impact of Porosity and Electrolyte Composition on the Surface Charge of Hydroxyapatite Biomaterials. ACS APPLIED MATERIALS & INTERFACES 2016; 8:908-917. [PMID: 26684866 DOI: 10.1021/acsami.5b10404] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The success or failure of a material when implanted in the body is greatly determined by the surface properties of the material and the host tissue reactions. The very first event that takes place after implantation is the interaction of soluble ions, molecules and proteins from the biological environment with the material surface leading to the formation of an adsorbed protein layer that will later influence cell attachment. In this context, the particular topography and surface charge of a material become critical as they influence the nature of the proteins that will adsorb. However, very limited information is available on the surface charge of porous substrates. Only until very recently was the determination of the zeta potential on porous membranes accurately determined. The goal of this work was to implement the previous findings for the determination of the zeta potential of a series of porous hydroxyapatite (HA) substrates and to assess how porosity affects the measurements. In addition, studies using various electrolytes were also performed to prove how the specific affinity of certain ions for HA can further impact surface charge. The results showed that all materials exhibited very similar external surface charge (approximately -23 mV), consistent with their almost identical topographies. However, the presence of interconnected pores underneath the sample surface resulted in an additional internal zeta potential that varied with the porosity content. Measurements with different electrolytes confirmed the selectivity of divalent ions for HA underlying the importance of testing biomaterials using relevant electrolytes.
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Affiliation(s)
- Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC) , Avinguda Diagonal 647, 08028 Barcelona, Spain
- Centre for Research in Nanoengineering, Technical University of Catalonia (CRNE-UPC) , Pascual i Vila 15, 08028 Barcelona, Spain
| | - Gemma Mestres
- Department of Engineering Sciences, Uppsala University , 751 21 Uppsala, Sweden
| | | | - Jean-Baptiste Dory
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC) , Avinguda Diagonal 647, 08028 Barcelona, Spain
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC) , Avinguda Diagonal 647, 08028 Barcelona, Spain
- Centre for Research in Nanoengineering, Technical University of Catalonia (CRNE-UPC) , Pascual i Vila 15, 08028 Barcelona, Spain
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Tsiourvas D, Tsetsekou A, Kammenou MI, Boukos N. Biomimetic synthesis of ribbon-like hydroxyapatite employing poly( l -arginine). MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:1225-31. [DOI: 10.1016/j.msec.2015.09.076] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 09/14/2015] [Accepted: 09/19/2015] [Indexed: 02/04/2023]
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Hu B, Zhao C, Jin X, Wang H, Xiong J, Tan J. Antagonistic effect in pickering emulsion stabilized by mixtures of hydroxyapatite nanoparticles and sodium oleate. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.08.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Aizawa M, Matsuura T, Zhuang Z. Syntheses of single-crystal apatite particles with preferred orientation to the a- and c-axes as models of hard tissue and their applications. Biol Pharm Bull 2014; 36:1654-61. [PMID: 24189407 DOI: 10.1248/bpb.b13-00439] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hydroxyapatite [Ca10(PO4)6(OH)2; HAp] is the mineral component of vertebrate hard tissues and an important raw material for biomaterials. The HAp crystal belongs to a hexagonal system and has two types of crystal plane with different atomic arrangements: positively charged calcium ions are mainly present in the a(b)-planes, while negatively charged phosphate ions and hydroxyl groups are mainly present in the c-planes. In vertebrate long bone surfaces, HAp crystals have a c-axis orientation, which leads to the development of the a(b)-plane; while in tooth enamel surfaces, they have an a(b)-axis orientation, which leads to the development of the c-plane. However, it is not clear why the orientations of long bone and tooth enamel are in different crystal planes. In order to clarify this question, we have synthesized single-crystal apatite particles with preferred orientation to the a- and c-axes as models for bone and teeth enamel. This review first describes the syntheses process of single-crystal apatite particles with preferred orientation to a(b)- and c-axes and then discusses specific protein adsorption to the crystal surface of the resulting plate- and fiber-shaped apatite particles with different surface charges. In addition, porous apatite-fiber scaffolds (AFSs) fabricated using the fiber-shaped apatite particles and their application to tissue engineering of bone are described on the basis of the three-dimensional cell culture of mesenchymal stem cells derived from rat bone marrow using the AFS settled into a radial-flow bioreactor.
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Affiliation(s)
- Mamoru Aizawa
- Department of Applied Chemistry, Meiji University School of Science and Technology
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Mutsuzaki H, Ito A, Sogo Y, Sakane M, Oyane A, Yamazaki M. The calcium phosphate matrix of FGF-2-apatite composite layers contributes to their biological effects. Int J Mol Sci 2014; 15:10252-70. [PMID: 24918287 PMCID: PMC4100151 DOI: 10.3390/ijms150610252] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 05/28/2014] [Indexed: 12/14/2022] Open
Abstract
The purpose of the present study was to fabricate fibroblast growth factor (FGF)-2-apatite composite layers on titanium (Ti) pins in one step at 25 °C using a supersaturated calcium phosphate (CaP) solution, and to evaluate the physicochemical characteristics and biological effects of the coated Ti pins compared with coated Ti pins fabricated at 37 °C. Ti pins were immersed in a supersaturated CaP solution containing 0.5, 1.0, or 2.0 µg/mL FGF-2 at 25 °C for 24 h (25F0.5, 25F1.0, and 25F2.0) or containing 4.0 µg/mL FGF-2 at 37 °C for 48 h (37F4.0). Except for the 25F0.5, the chemical compositions and the mitogenic activity levels of FGF-2 of the composite layers formed by these two methods were similar, except for the Ca/P molar ratio, which was markedly smaller at 25 °C (1.55-1.56±0.01-0.02, p=0.0008-0.0045) than at 37 °C (1.67±0.11). Thus, either the apatite was less mature or the amount of amorphous calcium phosphate was higher in the composite layer formed at 25 °C. In vivo, the pin tract infection rate by visual inspection for 37F4.0 (45%) was lower than that for 25F1.0 (80%, p=0.0213), and the rate of osteomyelitis for 37F4.0 (35%) was lower than that for 25F0.5 (75%, p=0.0341). The extraction torque for 37F4.0 (0.276±0.117 Nm) was higher than that for 25F0.5 (0.192±0.117 Nm, p=0.0142) and that for 25F1.0 (0.176±0.133 Nm, p=0.0079). The invasion rate of S. aureus for 37F4.0 (35%) was lower than that for 25F0.5 (75%, p=0.0110). On the whole, the FGF-2-apatite composite layer formed at 25 °C tended to be less effective at improving fixation strength in the bone-pin interface and resisting pin tract infections. These results suggest that the chemistry of the calcium phosphate matrix that embeds FGF-2, in addition to FGF-2 content and activity, has a significant impact on composite infection resistance and fixation strength.
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Affiliation(s)
- Hirotaka Mutsuzaki
- Department of Orthopaedic Surgery, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami Ami-machi, Inashiki-gun, Ibaraki 300-0394, Japan.
| | - Atsuo Ito
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Yu Sogo
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Masataka Sakane
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.
| | - Ayako Oyane
- Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan.
| | - Masashi Yamazaki
- Department of Orthopaedic Surgery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.
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Ciobanu G, Harja M, Rusu L, Mocanu AM, Luca C. Acid Black 172 dye adsorption from aqueous solution by hydroxyapatite as low-cost adsorbent. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0040-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wasem M, Köser J, Hess S, Gnecco E, Meyer E. Exploring the retention properties of CaF2 nanoparticles as possible additives for dental care application with tapping-mode atomic force microscope in liquid. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:36-43. [PMID: 24455460 PMCID: PMC3896269 DOI: 10.3762/bjnano.5.4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 12/10/2013] [Indexed: 06/03/2023]
Abstract
Amplitude-modulation atomic force microscopy (AM-AFM) is used to determine the retention properties of CaF2 nanoparticles adsorbed on mica and on tooth enamel in liquid. From the phase-lag of the forced cantilever oscillation the local energy dissipation at the detachment point of the nanoparticle was determined. This enabled us to compare different as-synthesized CaF2 nanoparticles that vary in shape, size and surface structure. CaF2 nanoparticles are candidates for additives in dental care products as they could serve as fluorine-releasing containers preventing caries during a cariogenic acid attack on the teeth. We show that the adherence of the nanoparticles is increased on the enamel substrate compared to mica, independently of the substrate roughness, morphology and size of the particles.
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Affiliation(s)
- Matthias Wasem
- Department of Physics, University of Basel, Klingelbergstrasse 82, Basel 4056, Switzerland
| | - Joachim Köser
- Institute for Chemistry and Bioanalytics, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz 4132, Switzerland
| | - Sylvia Hess
- GABA International AG, Grabetsmattweg, 4106 Therwil, Switzerland
| | - Enrico Gnecco
- Instituto Madrileño de Estudios Avanzados, IMDEA Nanociencia, 28049 Madrid, Spain
| | - Ernst Meyer
- Department of Physics, University of Basel, Klingelbergstrasse 82, Basel 4056, Switzerland
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Preparation and characterization of nano-hydroxyapatite within chitosan matrix. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4539-44. [DOI: 10.1016/j.msec.2013.07.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 06/11/2013] [Accepted: 07/06/2013] [Indexed: 11/21/2022]
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Abstract
The specific adsorption of citric acid ions at hydroxyapatite interface was investigated by the means of radioisotope method (14C) as a function of citric acid ions concentration, NaCl concentration and pH. Application of the hydroxyapatite has become wide in the biomaterial field as the Ca10(OH)2(PO4)6 possess biocompatibility with human hard tissue. Hydroxyapatite was synthesized using three different methods. The physical properties of the resulting powder were characterized by DTA/TG, XRD, AFM and SEM microscopy. Physicochemical qualities characterizing the electrical double layer of the hydroxyapatite/NaCl solution interface were determined. The zeta potential and the adsorption of citric acid molecule were studied as a function of pH. The point of zero charge and the isoelectric point of samples were determined. Electrical double layer parameters of hydroxyapatite/NaCl interface are influenced by a synthesis method. The points pHpzc and pHIEP for sample 1 are pHpzc 7.5 and pHIEP 3; for sample 2 pHpzc 7.05 and pHIEP 3, for smaple 3 pHpzc 6.7 and pHIEP 3. Temperature has weak influence both on pure substance and with citric acid adsorbed, as derivatographic analysis has shown, and characterization of hydroxyapatite structure may be carried out by this thermal analysis. Two phenomena are responsible for citric acid adsorption: phosphate group's replacement at hydroxyapatite surface by citric ions parallel to intraspherical complexes formation.
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Affiliation(s)
- E. Skwarek
- Faculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland
| | - W. Janusz
- Faculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland
| | - D. Sternik
- Faculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland
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Zhuang Z, Aizawa M. Protein adsorption on single-crystal hydroxyapatite particles with preferred orientation to a(b)- and c-axes. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1211-1216. [PMID: 23386210 DOI: 10.1007/s10856-013-4879-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 01/24/2013] [Indexed: 06/01/2023]
Abstract
Adsorption of bovine serum albumin (BSA) and lysozyme (LSZ) proteins with preferred orientation to a(b)- and c-axes of single-crystal hydroxyapatite (HAp) particles, was investigated. Fiber-like HAp single crystal particles (aHAp) and plate-like HAp single crystal particles (cHAp) were used as models for a(b)-plane and c-plane oriented HAps, respectively, together with randomly shaped HAp particles (iHAp) as a control. The selective adsorption behaviors of negatively charged BSA and positively charged LSZ on these HAp particles were examined in a phosphate buffered saline at pH 7.3 and 25 °C for 48 h. The amount of BSA adsorption, normalized for specific surface area, was in the order of aHAp > iHAp > cHAp; however, the order for LSZ was reversed as cHAp > iHAp ≒ aHAp. These results indicate that the a(b)- and c-planes of HAp crystal have high specificity for the adsorption of acidic or basic proteins.
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Affiliation(s)
- Zhi Zhuang
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
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Zhuang Z, Fujimi TJ, Nakamura M, Konishi T, Yoshimura H, Aizawa M. Development of a,b-plane-oriented hydroxyapatite ceramics as models for living bones and their cell adhesion behavior. Acta Biomater 2013; 9:6732-40. [PMID: 23403169 DOI: 10.1016/j.actbio.2013.02.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 01/24/2013] [Accepted: 02/01/2013] [Indexed: 12/26/2022]
Abstract
In vertebrate bones and tooth enamel surfaces, the respective a,b-planes and c-planes of hydroxyapatite (HAp) crystals are preferentially exposed. However, the reason why the HAp crystals show different orientations depending on the type of hard tissues is not yet understood. To clarify this question, appropriate ceramic models with highly preferred orientation are necessary. In the present study, dense HAp ceramic models which have the same orientation as living bones were fabricated using composite powders of c-axis-oriented single-crystal apatite fibers (AF) and wet-synthesized apatite gels (AG). The results of crystalline identification and ultrastructural observation showed that the resulting HAp ceramics maintained the c-axis orientation of the AF particles, and their high a,b-plane orientation degrees could be maintained with small additive amounts of AG; however, when the AG content was over 30 mass%, this value decreased. The influence of orientation degree on the surface characteristics was investigated by evaluating the surface zeta-potential and wettability. These results show that increasing the a,b-plane orientation degree shifted the surface charge from negative to positive, and decreased the surface wettability. Initial cell-attachment assays were performed on these resulting ceramics using MC3T3-E1 cells as models of osteoblasts. The results show that the cell-attachment efficiency decreased with increasing a,b-plane orientation degree.
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Affiliation(s)
- Zhi Zhuang
- Department of Applied Chemistry, School of Science and Technology, Meiji University, Tama-ku, Kawasaki, Kanagawa, Japan
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Ash A, Ridout M, Parker R, Mackie A, Burnett G, Wilde P. Effect of calcium ions on in vitro pellicle formation from parotid and whole saliva. Colloids Surf B Biointerfaces 2013; 102:546-53. [DOI: 10.1016/j.colsurfb.2012.08.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/17/2012] [Accepted: 08/28/2012] [Indexed: 11/17/2022]
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Yanovska A, Kuznetsov V, Stanislavov A, Danilchenko S, Sukhodub L. A study of brushite crystallization from calcium-phosphate solution in the presence of magnesium under the action of a low magnetic field. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1883-1887. [DOI: 10.1016/j.msec.2012.05.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 04/08/2012] [Accepted: 05/07/2012] [Indexed: 11/29/2022]
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Davies E, Duer MJ, Ashbrook SE, Griffin JM. Applications of NMR crystallography to problems in biomineralization: refinement of the crystal structure and 31P solid-state NMR spectral assignment of octacalcium phosphate. J Am Chem Soc 2012; 134:12508-15. [PMID: 22746195 DOI: 10.1021/ja3017544] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
By combining X-ray crystallography, first-principles density functional theory calculations, and solid-state nuclear magnetic resonance spectroscopy, we have refined the crystal structure of octacalcium phosphate (OCP), reassigned its (31)P NMR spectrum, and identified an extended hydrogen-bonding network that we propose is critical to the structural stability of OCP. Analogous water networks may be related to the critical role of the hydration state in determining the mechanical properties of bone, as OCP has long been proposed as a precursor phase in bone mineral formation. The approach that we have taken in this paper is broadly applicable to the characterization of crystalline materials in general, but particularly to those incorporating hydrogen that cannot be fully characterized using diffraction techniques.
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Affiliation(s)
- Erika Davies
- Department of Chemistry, University of Cambridge, Cambridge, UK
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Habraken WJEM, Wolke JGC, Mikos AG, Jansen JA. PLGA microsphere/calcium phosphate cement composites for tissue engineering: in vitro release and degradation characteristics. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 19:1171-88. [DOI: 10.1163/156856208785540136] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- W. J. E. M. Habraken
- a Department of Periodontology and Biomaterials, College of Dental Science, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - J. G. C. Wolke
- b Department of Periodontology and Biomaterials, College of Dental Science, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - A. G. Mikos
- c Department of Bioengineering, Rice University, Houston, TX, USA
| | - J. A. Jansen
- d Department of Periodontology and Biomaterials, College of Dental Science, Radboud University Nijmegen Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
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