101
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Ressler A, Antunović M, Teruel-Biosca L, Ferrer GG, Babić S, Urlić I, Ivanković M, Ivanković H. Osteogenic differentiation of human mesenchymal stem cells on substituted calcium phosphate/chitosan composite scaffold. Carbohydr Polym 2022; 277:118883. [PMID: 34893286 DOI: 10.1016/j.carbpol.2021.118883] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/26/2021] [Accepted: 11/09/2021] [Indexed: 11/24/2022]
Abstract
Ionic substitutions are a promising strategy to enhance the biological performance of calcium phosphates (CaP) and composite materials for bone tissue engineering applications. However, systematic studies have not been performed on multi-substituted organic/inorganic scaffolds. In this work, highly porous composite scaffolds based on CaPs substituted with Sr2+, Mg2+, Zn2+ and SeO32- ions, and chitosan have been prepared by freeze-gelation technique. The scaffolds have shown highly porous structure, with very well interconnected pores and homogeneously dispersed CaPs, and high stability during 28 days in the degradation medium. Osteogenic potential of human mesenchymal stem cells seeded on scaffolds has been determined by histological, immunohistochemical and RT-qPCR analysis of cultured cells in static and dynamic conditions. Results indicated that ionic substitutions have a beneficial effect on cells and tissues. The scaffolds with multi-substituted CaPs have shown increased expression of osteogenesis related markers and increased phosphate deposits, compared to the scaffolds with non-substituted CaPs.
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Affiliation(s)
- Antonia Ressler
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia.
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia
| | - Laura Teruel-Biosca
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Gloria Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain.
| | - Slaven Babić
- UHC "Sestre Milosrdnice", Department for Traumatology, Draškovićeva 19, 10 000 Zagreb, Croatia
| | - Inga Urlić
- Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb 10 000, Croatia.
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia.
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, p.p.177, 10 000 Zagreb, Croatia.
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102
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Deng Y, Wei W, Tang P. Applications of Calcium-Based Nanomaterials in Osteoporosis Treatment. ACS Biomater Sci Eng 2022; 8:424-443. [PMID: 35080365 DOI: 10.1021/acsbiomaterials.1c01306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With rapidly aging populations worldwide, osteoporosis has become a serious global public health problem. Caused by disordered systemic bone remodeling, osteoporosis manifests as progressive loss of bone mass and microarchitectural deterioration of bone tissue, increasing the risk of fractures and eventually leading to osteoporotic fragility fractures. As fracture risk increases, antiosteoporosis treatments transition from nonpharmacological management to pharmacological intervention, and finally to the treatment of fragility fractures. Calcium-based nanomaterials (CBNMs) have unique advantages in osteoporosis treatment because of several characteristics including similarity to natural bone, excellent biocompatibility, easy preparation and functionalization, low pH-responsive disaggregation, and inherent pro-osteogenic properties. By combining additional ingredients, CBNMs can play multiple roles to construct antiosteoporotic biomaterials with different forms. This review covers recent advances in CBNMs for osteoporosis treatment. For ease of understanding, CBNMs for antiosteoporosis treatment can be classified as locally applied CBNMs, such as implant coatings and filling materials for osteoporotic bone regeneration, and systemically administered CBNMs for antiosteoporosis treatment. Locally applied CBNMs for osteoporotic bone regeneration develop faster than the systemically administered CBNMs, an important consideration given the serious outcomes of fragility fractures. Nevertheless, many innovations in construction strategies and preparation methods have been applied to build systemically administered CBNMs. Furthermore, with increasing interest in delaying osteoporosis progression and avoiding fragility fracture occurrence, research into systemic administration of CBNMs for antiosteoporosis treatment will have more development prospects. Deep understanding of the CBNM preparation process and optimizing CBNM properties will allow for increased application of CBNMs in osteoporosis treatments in the future.
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Affiliation(s)
- Yuan Deng
- Department of Orthopedics, Fourth Medical Center, General Hospital of Chinese PLA, Beijing 100000, China
| | - Wei Wei
- State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences No. 1 Bei-Er-Tiao, Beijing 100190, P. R. China
| | - Peifu Tang
- Department of Orthopedics, Fourth Medical Center, General Hospital of Chinese PLA, Beijing 100000, China
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103
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Varying Synthesis Conditions and Comprehensive Characterization of Fluorine-Doped Hydroxyapatite Nanocrystals in a Simulated Body Fluid. CRYSTALS 2022. [DOI: 10.3390/cryst12020139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Bone supports animal bodies, is the place where blood is produced, and is essential for the immune system, among other important functions. The dominant inorganic component in bone is hydroxyapatite (Hap), the structure and dynamics of which still pose many unsolved puzzles. An updated understanding of HAp is of great significance to osteology, dentistry, and the development of artificial bone and other biomaterials. In this work, HAp nanoparticles were synthesized with the wet chemical precipitation method and their structure and morphologies were controlled by varying pH and adding fluoride ions by two different routes: (1) fluoride ions were added during synthesis, and (2) fluoride ions were introduced after the samples were synthesized by soaking the samples in solutions with fluoride ions. XRD and HRTEM were employed to confirm the composition and structure, while various multinuclear (1H, 19F, 31P) solid-state nuclear magnetic resonance (NMR) methods including 1D single pulse, cross-polarization under magic-angle spinning (CPMAS), and 2D heteronuclear correlation (HETCOR) were used to characterize the structure, morphology, and dynamics, validating the general core-shell morphology in these F-HAp samples. It was found that all hydroxide ions were substituted when the fluoride ion concentration was above 0.005 M. An NMR peak corresponding to water structure emerged and the bulk water peak was shifted upfield, indicating that fluoride substitution modifies both the crystalline core and the amorphous shell of F-HAp nanoparticles. With the second route of fluoride substitution, increases in soaking time or fluoride ion concentration could increase fluoride substitution in HAp, but could not achieve complete substitution. Finally, with 1H-31P CPMAS and HETCOR, it was established that there are two types of phosphorous, one in the crystalline core (PO43−) and the other in the amorphous shell (HPO42−). These results are valuable for clarifying the fluoride substitution mechanism in HAp in biomaterials or in organisms, and provide insights for developing next generation replacement materials for bone, tooth, or coating films, drug delivery systems, etc.
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104
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Pérez S, Muñoz-Saldaña J, Garcia-Nunez JA, Acelas N, Flórez E. Unraveling the Ca-P species produced over the time during phosphorus removal from aqueous solution using biocomposite of eggshell-palm mesocarp fiber. CHEMOSPHERE 2022; 287:132333. [PMID: 34563780 DOI: 10.1016/j.chemosphere.2021.132333] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/07/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Phosphorus (P) adsorption from aqueous solutions is usually evaluated by monitoring the P concentration and employed kinetic models. In this work, three adsorbents obtained from eggshell (ES) and eggshell mixed with palm mesocarp fiber (ESF-1:1 and ESF-1:10) at different Ca(OH)2/CaCO3 compositions were evaluated, and the Ca-P species formed monitored as a function of time deconvoluting Fourier Transform Infrared (FTIR) spectra. At 0.25 h the ESF-1:10 (Ca(OH)2: 26.2 wt%) exhibited better adsorption performance of 35 mgg-1 while ESF-1:1 and ES (Ca(OH)2: 2.8 and 3.0 wt%) showed 26 and 4 mgg-1, respectively. Characteristic PO43- bands in apatite were corroborated by XRD and FTIR. It was found that the role of Ca(OH)2 in the adsorption ends before 0.25 h, and thereafter CaCO3 becomes the phase responsible for the removal of orthophosphate H2PO4-/HPO42-/PO43- ions. The results indicate a direct ligand exchange of CO32- for PO43- that takes place while increasing the apatite crystallinity. On the other hand, the P adsorption process is also dependent on P concentration. At low P concentrations, characteristic bands of PO43- in apatite were observed in FTIR, while at high concentrations, characteristic bands for adsorbed HPO42- were obtained. The obtained results give a relevant role to CaCO3 in P adsorption. Kinetic analysis for Ca-based biocomposites showed that the Avrami order kinetic model fits better for the adsorbents. For P adsorption isotherm process the Langmuir's isotherms showed a good fit, with a maximum adsorption capacity of 90.8, 134.0, and 67.9 mgg-1 for ES, ESF-1:1, and ESF-1:10, respectively.
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Affiliation(s)
- Sebastián Pérez
- Grupo de Investigación Materiales con Impacto (Mat&mpac) Universidad de Medellín, Medellín, 050026, Colombia
| | - Juan Muñoz-Saldaña
- Centro de Investigación y de Estudios Avanzados del IPN, Lib. Norponiente No.2000, Fracc. Real de Juriquilla, 76230, Querétaro, Qro, Mexico
| | | | - Nancy Acelas
- Grupo de Investigación Materiales con Impacto (Mat&mpac) Universidad de Medellín, Medellín, 050026, Colombia.
| | - Elizabeth Flórez
- Grupo de Investigación Materiales con Impacto (Mat&mpac) Universidad de Medellín, Medellín, 050026, Colombia.
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105
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Gashti MP, Stir M, Burgener M, Hulliger J, Choobar BG, Nooralian Z, Moghaddam MR. Hydroxypropyl methylcellulose-controlled in vitro calcium phosphate biomineralization. NEW J CHEM 2022. [DOI: 10.1039/d2nj02365b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Scanning pyroelectric microscopy of DCPD single crystals.
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Affiliation(s)
- Mazeyar Parvinzadeh Gashti
- GTI Chemical Solutions, Inc., 29385, Wellford, South Carolina, USA
- InsectaPel, LLC, 29385, Wellford, South Carolina, USA
| | - Manuela Stir
- Department of Chemistry & Biochemistry, University of Berne, Freiestrasse 3 CH-3012, Berne, Switzerland
| | - Matthias Burgener
- Department of Chemistry & Biochemistry, University of Berne, Freiestrasse 3 CH-3012, Berne, Switzerland
| | - Jürg Hulliger
- Department of Chemistry & Biochemistry, University of Berne, Freiestrasse 3 CH-3012, Berne, Switzerland
| | - Behnam Ghalami Choobar
- Department of chemical engineering, Amirkabir University of technology (Tehran Polytechnic), Tehran, Iran
| | - Zoha Nooralian
- Young Researchers and Elites Club, Yadegar-e-Imam Khomeini (RAH) Branch, Islamic Azad University, Tehran, Iran
| | - Milad Rahimi Moghaddam
- Faculty of Industrial Engineering, Khajeh Nasir Toosi University of Technology, Tehran, Iran
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106
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Zalite V, Lungevics J, Vecstaudza J, Stipniece L, Locs J. Nanosized calcium deficient hydroxyapatites for tooth enamel protection. J Biomed Mater Res B Appl Biomater 2021; 110:1354-1367. [PMID: 34965008 PMCID: PMC9306847 DOI: 10.1002/jbm.b.35005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/23/2022]
Abstract
Calcium phosphates (CaP) are extensively studied as additives to dental care products for tooth enamel protection against caries. However, it is not clear yet whether substituted CaP could provide better enamel protection. In this study we produced, characterized and tested in vitro substituted and co‐substituted calcium deficient hydroxyapatite (CDHAp) with Sr2+ and F− ions. X‐ray powder diffractometry, Fourier transformation infrared spectroscopy, scanning electron microscopy, energy‐dispersive X‐ray analysis, Brunauer–Emmett–Teller were used to characterize synthesized powders and also cytotoxicity was evaluated. pH = f(t) test was performed to estimate, weather synthesized CDHAp suspensions are able to increase pH of experimental media after acid addition. Synthesis products were incorporated into paste to perform in vitro remineralization on the bovine enamel. In addition to mentioned instrumental methods, profilometry was used for evaluation of remineralised enamel samples. The obtained results confirmed formation of CDHAp substituted with 1.5–1.6 wt% of fluoride and 7.4–7.8 wt% of strontium. pH = f(t) experiment pointed out that pH increased by approximately 0.3 within 10 min after acid addition for all CDHAp suspensions. A new layer of the corresponding CDHAp was formed on the enamel. Its thickness increased by 0.8 ± 0.1 μm per day and reached up to 5.8 μm after 7 days. Additionally, octa calcium phosphates were detected on the surface of control samples. In conclusion, we can assume that CDHAp substituted with Sr2+ and/or F− could be used as an effective additive to dental care products promoting formation of protecting layer on the enamel, but there was no significant difference among sample groups.
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Affiliation(s)
- Vita Zalite
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Janis Lungevics
- Department of Mechanical Engineering and Mechatronics, Faculty of Mechanical Engineering, Transport and Aeronautics, Riga Technical University, Riga, Latvia
| | - Jana Vecstaudza
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Liga Stipniece
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia
| | - Janis Locs
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia.,Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Riga, Latvia
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107
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Vasylenko K, Sakhno Y, Jaisi D, Nikolenko M. Determination of the Activation Energies of Phase Transition for Calcium Orthophosphates Based on Powder X‐Ray Diffraction Data. CRYSTAL RESEARCH AND TECHNOLOGY 2021. [DOI: 10.1002/crat.202100215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kateryna Vasylenko
- Faculty of Chemical Technologies and Ecology Ukrainian State University of Chemical Technology ave.Gagarin, 8 Dnipro 49005 Ukraine
| | - Yuriy Sakhno
- University of Delaware 221 Academy St Newark19716 USA
| | - Deb Jaisi
- University of Delaware 221 Academy St Newark19716 USA
| | - Mykola Nikolenko
- Faculty of Chemical Technologies and Ecology Ukrainian State University of Chemical Technology ave.Gagarin, 8 Dnipro 49005 Ukraine
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108
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Zhong Z, Wu X, Wang Y, Li M, Li Y, Liu X, Zhang X, Lan Z, Wang J, Du Y, Zhang S. Zn/Sr dual ions-collagen co-assembly hydroxyapatite enhances bone regeneration through procedural osteo-immunomodulation and osteogenesis. Bioact Mater 2021; 10:195-206. [PMID: 34901539 PMCID: PMC8636740 DOI: 10.1016/j.bioactmat.2021.09.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/21/2021] [Accepted: 09/07/2021] [Indexed: 01/07/2023] Open
Abstract
The immune microenvironment induced by biomaterials played vital roles in bone regeneration. Hydroxyapatite (HA) and its ion-substituted derivates represent a large class of core inorganic materials for bone tissue engineering. Although ion substitution was proved to be a potent way to grant HA more biological functions, few studies focused on the immunomodulatory properties of ion-doped HA. Herein, to explore the potential osteoimmunomodulatory effects of ion-doped HA, zinc and strontium co-assembled into HA through a collagen template biomimetic way (ZnSr-Col-HA) was successfully achieved. It was found that ZnSr-Col-HA could induce a favorable osteo-immune microenvironment by stimulating macrophages. Furthermore, ZnSr-Col-HA demonstrated a procedural promoting effect on osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) in vitro. Specifically, the osteo-immune microenvironment acted as a dominant factor in promoting osteogenic gene expressions at the early stage through OSM signal pathway. Whereas the direct stimulating effects on BMSCs by Zn2+/Sr2+ were more effectively at the later stage with Nfatc1/Maf and Wnt signals activated. In vivo study confirmed strong promoting effects of ZnSr-Col-HA on critical-sized cranial defect repair. The current study indicated that such a combined biomaterial design philosophy of dual ion-doping and biomimetic molecular co-assembly to endow HA applicable osteoimmunomodulatory characteristics might bring up a new cutting-edge concept for bone regeneration study. Zn/Sr dual ions-collagen co-assembly hydroxyapatite (ZnSr-Col-HA) was achieved via a molecular template biomimetic way. A procedural promoting effect of ZnSr-Col-HA on osteogenic differentiation of BMSCs was firstly found. A novel material design philosophy was proposed for dual ions-doped biomimetic HA with osteoimmunomodulatory properties.
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Affiliation(s)
- Zhenyu Zhong
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaodan Wu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yifan Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Mengdie Li
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yan Li
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - XuLong Liu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Ziyang Lan
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Jianglin Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.,Institute of Regulatory Science for Medical Devices, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yingying Du
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.,Institute of Regulatory Science for Medical Devices, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shengmin Zhang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan, 430074, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.,Institute of Regulatory Science for Medical Devices, Huazhong University of Science and Technology, Wuhan, 430074, China
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109
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Mok ZH, Mylonas P, Austin R, Proctor G, Pitts N, Thanou M. Calcium phosphate nanoparticles for potential application as enamel remineralising agent tested on hydroxyapatite discs. NANOSCALE 2021; 13:20002-20012. [PMID: 34826325 DOI: 10.1039/d1nr05378g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Calcium phosphate exhibits excellent biocompatibility, and with particle size in the nanoscale, calcium phosphate nanoparticles (CPNPs) were explored to replace the hydroxyapatite lost in the nanoporous teeth due to dental erosion. CPNPs (2% w/v) colloidally stabilised by sodium citrate were synthesised via co-precipitation. They were characterised in terms of particle size, morphology, crystallinity, Ca/P ratio and calcium ion release. To ensure uniformity of the substrate, hydroxyapatite (HA) discs were examined as an alternative substrate model to enamel. They were eroded in acetate buffer (0.5 M; pH 4.0) at various timepoints (1, 5, 10, 30 min, and 2, 4 h), and their physical differences compared to enamel were assessed in terms of surface microhardness, surface roughness and step height. The remineralisation properties of the synthesised CPNPs on eroded HA discs at different pH levels were investigated. It was established that CPNPs were heterogeneously deposited on the HA discs at pH 9.2, whereas newly precipitated minerals from CPNPs were potentially formed at pH 6.2.
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Affiliation(s)
- Zi Hong Mok
- Swansea University Medical School, Swansea, UK
| | | | - Rupert Austin
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| | - Gordon Proctor
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
| | - Nigel Pitts
- Reminova, Inveralmond Business Park, Auld Bond Road, Perth, UK
| | - Maya Thanou
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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110
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Shao X, Hao W, Konhauser KO, Gao Y, Tang L, Su M, Li Z. The dissolution of fluorapatite by phosphate-solubilizing fungi: a balance between enhanced phosphorous supply and fluorine toxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:69393-69400. [PMID: 34302245 DOI: 10.1007/s11356-021-15551-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
Fluorapatite (FAp) is the largest phosphorous (P) reservoir on Earth. However, due to its low solubility, dissolved P is severely deficient in the pedosphere. Fungi play a significant role in P dissolution via excretion of organic acids, and in this regard, it is important to understand their impact on P cycling. The object of this study was to elucidate the balance between P release and F toxicity during FAp dissolution. The bioweathering of FAp was assisted by a typical phosphate-solubilizing fungus, Aspergillus niger. The release of elements and microbial activities were monitored during 5-day incubation. We found that the release of fluorine (F) was activated after day 1 (~90 mg/L), which significantly lowered the phosphate-solubilizing process by day 2. Despite P release from FAp being enhanced over the following 3 days, decreases in both the amount of biomass (52% decline) and the respiration rate (81% decline) suggest the strong inhibitory effect of F on the fungus. We thus concluded that F toxicity outweighs P supply, which in turn inhibits fungi growth and prevents further dissolution of FAp. This mechanism might reflect an underappreciated cause for P deficiency in soils.
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Affiliation(s)
- Xiaoqing Shao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Weiduo Hao
- Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada
| | - Kurt O Konhauser
- Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, T6G 2E3, Canada
| | - Yanan Gao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Lingyi Tang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Mu Su
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Zhen Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
- Jiangsu Key Laboratory for Organic Waste Utilization, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
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111
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Enzymatic Approach in Calcium Phosphate Biomineralization: A Contribution to Reconcile the Physicochemical with the Physiological View. Int J Mol Sci 2021; 22:ijms222312957. [PMID: 34884758 PMCID: PMC8657759 DOI: 10.3390/ijms222312957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 01/22/2023] Open
Abstract
Biomineralization is the process by which organisms produce hard inorganic matter from soft tissues with outstanding control of mineral deposition in time and space. For this purpose, organisms deploy a sophisticated "toolkit" that has resulted in significant evolutionary innovations, for which calcium phosphate (CaP) is the biomineral selected for the skeleton of vertebrates. While CaP mineral formation in aqueous media can be investigated by studying thermodynamics and kinetics of phase transitions in supersaturated solutions, biogenic mineralization requires coping with the inherent complexity of biological systems. This mainly includes compartmentalization and homeostatic processes used by organisms to regulate key physiological factors, including temperature, pH and ion concentration. A detailed analysis of the literature shows the emergence of two main views describing the mechanism of CaP biomineralization. The first one, more dedicated to the study of in vivo systems and supported by researchers in physiology, often involves matrix vesicles (MVs). The second one, more investigated by the physicochemistry community, involves collagen intrafibrillar mineralization particularly through in vitro acellular models. Herein, we show that there is an obvious need in the biological systems to control both where and when the mineral forms through an in-depth survey of the mechanism of CaP mineralization. This necessity could gather both communities of physiologists and physicochemists under a common interest for an enzymatic approach to better describe CaP biomineralization. Both homogeneous and heterogeneous enzymatic catalyses are conceivable for these systems, and a few preliminary promising results on CaP mineralization for both types of enzymatic catalysis are reported in this work. Through them, we aim to describe the relevance of our point of view and the likely findings that could be obtained when adding an enzymatic approach to the already rich and creative research field dealing with CaP mineralization. This complementary approach could lead to a better understanding of the biomineralization mechanism and inspire the biomimetic design of new materials.
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112
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The Use of Calcium Phosphates in Cosmetics, State of the Art and Future Perspectives. MATERIALS 2021; 14:ma14216398. [PMID: 34771927 PMCID: PMC8585361 DOI: 10.3390/ma14216398] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/20/2022]
Abstract
Calcium phosphates (CaPs) belong to a class of biomimetic materials widely employed for medical applications thanks to their excellent properties, such as biodegradability, biocompatibility and osteoinductivity. The recent trend in the cosmetics field of substituting potentially hazardous materials with natural, safe, and sustainable ingredients for the health of consumers and for the environment, as well as the progress in the materials science of academics and chemical industries, has opened new perspectives in the use of CaPs in this field. While several reviews have been focused on the applications of CaP-based materials in medicine, this is the first attempt to catalogue the properties and use of CaPs in cosmetics. In this review a brief introduction on the chemical and physical characteristics of the main CaP phases is given, followed by an up-to-date report of their use in cosmetics through a large literature survey of research papers and patents. The application of CaPs as agents in oral care, skin care, hair care, and odor control has been selected and extensively discussed, highlighting the correlation between the chemical, physical and toxicological properties of the materials with their final applications. Finally, perspectives on the main challenges that should be addressed by the scientific community and cosmetics companies to widen the application of CaPs in cosmetics are given.
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113
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Sun N, Jia Y, Wang C, Xia J, Dai L, Li J. Dopamine-Mediated Biomineralization of Calcium Phosphate as a Strategy to Facilely Synthesize Functionalized Hybrids. J Phys Chem Lett 2021; 12:10235-10241. [PMID: 34647744 DOI: 10.1021/acs.jpclett.1c02748] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Organic-inorganic hybrid materials have been considered to be promising carriers or immobilization matrixes for biomolecules due to their high efficiency and significantly enhanced activities and stabilities of biomolecules. Here, the well-defined dopamine/calcium phosphate organic-inorganic hybrids (DACaPMFs) are fabricated via one-pot dopamine-mediated biomineralization, and their structure and properties are also characterized. Direct stochastic optical reconstruction microscopy (dSTORM) is first used to probe the distribution of organic components in these hybrids. Combined with spectroscopic data, the direct observation of dopamine in the hybrids helps to understand the formation of a physical chemistry mechanism of the biomineralization. The obtained DACaPMFs with multiple-level pores allow the loading of doxorubicin with a high loading efficiency and a pH-responsive property. Furthermore, thrombin is entrapped by the hybrids to prove the controlled release. It is expected that such organic-inorganic hybrid materials may hold great promise for application in drug delivery as well as scaffold materials in bone tissue engineering and hemostatic material.
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Affiliation(s)
- Nan Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Jia
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Chenlei Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Jiarui Xia
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Luru Dai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Vilela HS, Rodrigues MC, Fronza BM, Trinca RB, Vichi FM, Braga RR. Effect of Temperature and pH on Calcium Phosphate Precipitation. CRYSTAL RESEARCH AND TECHNOLOGY 2021. [DOI: 10.1002/crat.202100094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Handially Santos Vilela
- Department of Biomaterials and Oral Biology, School of Dentistry University of São Paulo Av. Prof. Lineu Prestes, 2227 São Paulo São Paulo 05508‐000 Brazil
| | - Marcela Charantola Rodrigues
- Municipal University of São Caetano do Sul (USCS) Rua Santo Antônio, 50 São Caetano do Sul São Paulo 09521‐160 Brazil
| | - Bruna Marin Fronza
- Department of Biomaterials and Oral Biology, School of Dentistry University of São Paulo Av. Prof. Lineu Prestes, 2227 São Paulo São Paulo 05508‐000 Brazil
| | - Rafael Bergamo Trinca
- Department of Biomaterials and Oral Biology, School of Dentistry University of São Paulo Av. Prof. Lineu Prestes, 2227 São Paulo São Paulo 05508‐000 Brazil
| | - Flávio Maron Vichi
- Department of Fundamental Chemistry, Institute of Chemistry University of São Paulo Av. Prof. Lineu Prestes, 748 São Paulo São Paulo 05508‐900 Brazil
| | - Roberto Ruggiero Braga
- Department of Biomaterials and Oral Biology, School of Dentistry University of São Paulo Av. Prof. Lineu Prestes, 2227 São Paulo São Paulo 05508‐000 Brazil
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115
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Sun L, Hong G. Surface Modifications for Zirconia Dental Implants: A Review. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.733242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Zirconia-based bioceramic is a potential material for dental implants developed and introduced in dentistry 30 years ago. However, some limitations still exist for zirconia implants caused by several factors, such as manufacturing difficulties, low-temperature degradation (LTD), long-term stability, and clinical experience. Several studies validated that some subtle changes on the zirconia surface might significantly impact its mechanical properties and osseointegration. Thus, attention was paid to the effect of surface modification of zirconia implants. This review generally summarizes the surface modifications of zirconia implants to date classified as physical treatment, chemical treatment, and surface coating, aiming to give an overall perspective based on the current situation. In conclusion, surface modification is an effective and essential method for zirconia implant application. However, before clinical use, we need more knowledge about these modification methods.
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116
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Chen Q, Sun S, Ran G, Wang C, Gu W, Song Q. Electrochemical Detection of Phosphate Ion in Body Fluids with a Magnesium Phosphate Modified Electrode. ANAL SCI 2021; 37:1247-1252. [PMID: 33612555 DOI: 10.2116/analsci.20p415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An electrochemical sensor for phosphate detection in body fluids was developed based on the hydration transition of magnesium hydrogen phosphate (newberyite, MgHPO4·3H2O). The sensor was fabricated through incubation of a multi-walled carbon nanotube/Nafion (MWCNT/Nafion) modified glassy carbon electrode (GCE) in magnesium phosphate solution, where MgHPO4·3H2O was self-assembled on the electrode surface (denoted as MgP/MWCNT/Nafion). An electrooxidation peak at 1.0 V vs. Ag/AgCl was observed when the as-prepared electrode was subjected to a differential pulse voltammetry (DPV) scan in the presence of phosphate in acetate solution. When the DPV scan was performed in 0.4 - 1.3 V vs. Ag/AgCl, a linear relationship was observed between the peak height and the phosphate concentration in the range from 0.01 to 25 μM in the presence of 0.1 mM Mg2+ in the acetate solution with a limit of detection of 32 nM. And the sensor was successfully applied for phosphate detection in human urine and saliva samples with recoveries of 94.7 - 104.4 and 96 - 103.3%, respectively.
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Affiliation(s)
- Qixuan Chen
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
| | - Shuquan Sun
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
| | - Guoxia Ran
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
| | - Chan Wang
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
| | - Wenxiu Gu
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
| | - Qijun Song
- International Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
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117
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Bioactive Calcium Phosphate-Based Composites for Bone Regeneration. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5090227] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Calcium phosphates (CaPs) are widely accepted biomaterials able to promote the regeneration of bone tissue. However, the regeneration of critical-sized bone defects has been considered challenging, and the development of bioceramics exhibiting enhanced bioactivity, bioresorbability and mechanical performance is highly demanded. In this respect, the tuning of their chemical composition, crystal size and morphology have been the matter of intense research in the last decades, including the preparation of composites. The development of effective bioceramic composite scaffolds relies on effective manufacturing techniques able to control the final multi-scale porosity of the devices, relevant to ensure osteointegration and bio-competent mechanical performance. In this context, the present work provides an overview about the reported strategies to develop and optimize bioceramics, while also highlighting future perspectives in the development of bioactive ceramic composites for bone tissue regeneration.
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Mosaad KE, Shoueir KR, Saied AH, Dewidar MM. New Prospects in Nano Phased Co-substituted Hydroxyapatite Enrolled in Polymeric Nanofiber Mats for Bone Tissue Engineering Applications. Ann Biomed Eng 2021; 49:2006-2029. [PMID: 34378121 DOI: 10.1007/s10439-021-02810-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/03/2021] [Indexed: 01/12/2023]
Abstract
The most common forms of tissue impairment are fracture bones and significant bone disorders caused by multiple traumas or normal aging. Surgical care sometimes necessitates the placement of a temporary or permanent prosthesis, which continues to be a challenge for orthopedic surgeons, including those with large bone defects. Electrospun scaffolds made from natural and synthetic nanofiber-based polymers are studied as natural extracellular matrix (ECM)-like scaffolds for tissue engineering. Besides, nanostructured materials have properties and functions depending on the scale of natural materials such as hydroxyapatite (HAP), ranging from 1 to 100 nm, which activity was proficient upon enrolled in nanofiber mats. The use of nanofibers in combination with nano-HAP has increased the scaffold's ability to replicate the construction of natural bone tissue that is the aim of the present text. In bone engineering, nanofiber substrates facilitate cell adhesion, proliferation, and differentiation, while HAP induces cells to secrete ECM for bone mineralization and development. This review aims to draw the reader's attention to the critical issues with synthetic and natural polymers containing HAP in bone tissue engineering; co-substituted hydroxyapatite has also been mentioned.
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Affiliation(s)
- Kareem E Mosaad
- Faculty of Engineering, Mechanical Department, Al-Azahar University, Cairo, Egypt
| | - Kamel R Shoueir
- Institute of Nanoscience & Nanotechnology, Kafrelsheikh University, 33516, Kafrelsheikh, Egypt.
- Institut de Chimie et Procédés Pour l'Énergie, l'Environnement et la Santé (ICPEES), CNRS, UMR 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, France.
| | - Ahmed H Saied
- Department of Mechanical Engineering, Faculty of Engineering, Kafrelsheikh University, El-Gaish Street, Kafrelsheikh, Egypt
| | - Montasser M Dewidar
- Department of Mechanical Engineering, Faculty of Engineering, Kafrelsheikh University, El-Gaish Street, Kafrelsheikh, Egypt
- Higher Institute of Engineering and Technology, Kafrelsheikh, Egypt
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119
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Radvar E, Griffanti G, Tsolaki E, Bertazzo S, Nazhat SN, Addison O, Mata A, Shanahan CM, Elsharkawy S. Engineered In vitro Models for Pathological Calcification: Routes Toward Mechanistic Understanding. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Elham Radvar
- Centre for Oral, Clinical and Translational Sciences Faculty of Dentistry, Oral and Craniofacial Sciences King's College London London SE1 1UL UK
| | - Gabriele Griffanti
- Department of Mining and Materials Engineering Faculty of Engineering McGill University Montreal QC H3A 0C5 Canada
| | - Elena Tsolaki
- Department of Medical Physics and Biomedical Engineering University College London London WC1E 6BT UK
| | - Sergio Bertazzo
- Department of Medical Physics and Biomedical Engineering University College London London WC1E 6BT UK
| | - Showan N. Nazhat
- Department of Mining and Materials Engineering Faculty of Engineering McGill University Montreal QC H3A 0C5 Canada
| | - Owen Addison
- Centre for Oral, Clinical and Translational Sciences Faculty of Dentistry, Oral and Craniofacial Sciences King's College London London SE1 1UL UK
| | - Alvaro Mata
- School of Pharmacy University of Nottingham Nottingham NG7 2RD UK
| | - Catherine M. Shanahan
- BHF Centre of Research Excellence Cardiovascular Division James Black Centre King's College London London SE1 1UL UK
| | - Sherif Elsharkawy
- Centre for Oral, Clinical and Translational Sciences Faculty of Dentistry, Oral and Craniofacial Sciences King's College London London SE1 1UL UK
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Guo J, Zhang X, Wang M, Wu S, Chen F, Yang Y. Ferric iron incorporation promotes brushite hydrolysis and enhances cadmium immobilization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146266. [PMID: 33721635 DOI: 10.1016/j.scitotenv.2021.146266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/27/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
Dissolution-precipitation processes on the surface of brushite (dicalcium phosphate dihydrate, DCPD) control the migration and transformation of potentially harmful elements (PHEs). The incorporation of impurities could affect the properties of DCPD and its interactions with PHEs. In this study, we synthesized Fe3+-bearing DCPD via coprecipitation and investigated the influence of Fe3+ incorporation on the crystal structure, hydrolysis process, and Cd removal performance. Fe-bearing DCPD had lattice expansion due to the coupled substitution of Fe3+ and NH4+ for Ca2+. Therefore, the Cd removal performance of Fe-DCPD was enhanced, with a maximum Cd uptake capacity of 431.6 mg/g, which is 1.77 times that of Fe-free DCPD (244.4 mg/g). Furthermore, Fe-DCPD also exhibited a faster hydrolysis rate, which was up to 2.67 times that of Fe-free DCPD and accelerated Cd's transfer to the stable host mineral, hydroxylapatite. Cd was first caught by the DCPD surface in a weakly crystalline form and then incorporated into the hydroxylapatite structure during crystallization. Based on the X-ray photoelectron spectroscopy and thermogravimetric analysis results, we concluded that the decrease in interstitial water due to Fe incorporation was responsible for accelerating hydrolysis and enhancing Cd immobilization. In all, the incorporation of Fe3+ into DCPD could promote its transformation and improve its Cd uptake capacity. Our results suggest that Fe-DCPD could be a promising candidate for environmental remediation.
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Affiliation(s)
- Jianan Guo
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049 Beijing, China
| | - Xiaohang Zhang
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049 Beijing, China
| | - Maolin Wang
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China; University of Chinese Academy of Sciences, 19 Yuquan Road, 100049 Beijing, China
| | - Shijun Wu
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China.
| | - Fanrong Chen
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China
| | - Yongqiang Yang
- CAS Key Laboratory of Mineralogy and Metallogeny & Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, 510640 Guangzhou, China; CAS Center for Excellence in Deep Earth Science, 511 Kehua Street, 510640 Guangzhou, China
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121
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Epasto LM, Georges T, Selimović A, Guigner JM, Azaïs T, Kurzbach D. Formation and Evolution of Nanoscale Calcium Phosphate Precursors under Biomimetic Conditions. Anal Chem 2021; 93:10204-10211. [PMID: 34251166 PMCID: PMC8319911 DOI: 10.1021/acs.analchem.1c01561] [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] [Indexed: 11/30/2022]
Abstract
Simulated body fluids (SBFs) that mimic human blood plasma are widely used media for in vitro studies in an extensive array of research fields, from biomineralization to surface and corrosion sciences. We show that these solutions undergo dynamic nanoscopic conformational rearrangements on the timescale of minutes to hours, even though they are commonly considered stable or metastable. In particular, we find and characterize nanoscale inhomogeneities made of calcium phosphate (CaP) aggregates that emerge from homogeneous SBFs within a few hours and evolve into prenucleation species (PNS) that act as precursors in CaP crystallization processes. These ionic clusters consist of ∼2 nm large spherical building units that can aggregate into suprastructures with sizes of over 200 nm. We show that the residence times of phosphate ions in the PNS depend critically on the total PNS surface. These findings are particularly relevant for understanding nonclassical crystallization phenomena, in which PNS are assumed to act as building blocks for the final crystal structure.
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Affiliation(s)
- Ludovica M Epasto
- Faculty of Chemistry, Institute of Biological Chemistry, University Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Tristan Georges
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), 4, Place Jussieu, F-75005 Paris, France
| | - Albina Selimović
- Faculty of Chemistry, Institute of Biological Chemistry, University Vienna, Währinger Str. 38, 1090 Vienna, Austria
| | - Jean-Michel Guigner
- Institut de Minéralogie et Physique des Milieux Condensés (IMPMC), Sorbonne Université, 4, Place Jussieu, F-75005 Paris, France
| | - Thierry Azaïs
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), 4, Place Jussieu, F-75005 Paris, France
| | - Dennis Kurzbach
- Faculty of Chemistry, Institute of Biological Chemistry, University Vienna, Währinger Str. 38, 1090 Vienna, Austria
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122
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Borovik P, Oestreicher V, Huck-Iriart C, Jobbágy M. Amorphous Calcium Phosphates: Solvent-Controlled Growth and Stabilization through the Epoxide Route. Chemistry 2021; 27:10077-10086. [PMID: 33890346 DOI: 10.1002/chem.202005483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Indexed: 12/11/2022]
Abstract
Calcium phosphates stand among the most promising nanobiomaterials in key biomedical applications, such as bone repairment, signalling or drug/gene delivery. Their intrinsic properties as crystalline structure, composition, particle shape and size define their successful use. Among these compounds, metastable amorphous calcium phosphate (ACP) is currently gaining particular attention due to its inherently high reactivity in solution, which is crucial in bone development mechanisms. However, the preparation of this highly desired (bio)material with control over its shape, size and phase purity remains as a synthetic challenge. In this work, the epoxide route was adapted for the synthesis of pure and stable ACP colloids. By using biocompatible solvents, such as ethylene glycol and/or glycerine, it was possible to avoid the natural tendency of ACP to maturate into more stable and crystalline apatites. Moreover, this procedure offers size control, ranging from small nanoparticles (60 nm) to micrometric spheroids (>500 nm). The eventual fractalization of the internal mesostructured can be tuned, by simply adjusting the composition of the ethylene glycol:glycerine solvent mixture. These findings introduce the use of green solvents as a new tool to control crystallinity and/or particle size in the synthesis of nanomaterials, avoiding the use of capping agents and preserving the natural chemical reactivity of the pristine surface.
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Affiliation(s)
- Paula Borovik
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, 1428, Buenos Aires, Argentina
- Current address, Gerencia Química & Instituto de Nanociencia y Nanotecnología, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, CONICET, Av. Gral. Paz 1499, 1650, San Martín, Buenos Aires, Argentina
| | - Víctor Oestreicher
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, 1428, Buenos Aires, Argentina
- Current address: Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Valencia, Spain
| | - Cristián Huck-Iriart
- Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, CONICET, 25 de mayo 1650, 1650, San Martín, Buenos Aires, Argentina
| | - Matías Jobbágy
- INQUIMAE-DQIAQF, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, 1428, Buenos Aires, Argentina
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123
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Lei Y, Zhan Z, Saakes M, van der Weijden RD, Buisman CJN. Electrochemical recovery of phosphorus from wastewater using tubular stainless-steel cathode for a scalable long-term operation. WATER RESEARCH 2021; 199:117199. [PMID: 34004442 DOI: 10.1016/j.watres.2021.117199] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/17/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Phosphorus (P) is an irreplaceable element, playing a vital role in living organisms, yet has limited earth reserves. The possibility of P recovery from wastewaters by electrochemically-induced calcium phosphate precipitation (ECaPP) was demonstrated previously. The current study presents a novel scalable prototype consisting of a column-shaped electrochemical reactor, a tubular stainless-steel cathode, and a Pt coated Ti anode. The adhesion of solids to the cathode, important for product recovery, was shown not to be negatively impacted by electrodes' vertical placement. The influence of current (density), hydraulic retention time (HRT), and initial phosphate concentration in this prototype were examined under continuous flow operation. The system accomplished the highest P removal rate (1267 mg/day) at 1.5 d HRT and 800 mA in treating undiluted cheese wastewater with 48.5 kWh/kg P. Moreover, the prototype showed high stability and efficiency (> 50%) over 173 days of continuous operation without performing maintenance. After turning off the current (0 mA), the system realized a surprising P removal jump up to 97.3%, revealing the delayed diffusion of hydroxide ions by the deposition layer. The calculation of CAPEX and OPEX of ECaPP in treating 100 m3 cheese wastewater per week indicates that the ECaPP plant can realize net-positive from the 12th year. The recovered solids have relatively high P content (> 9wt%) and insignificant contamination of heavy metals. Overall, the proven suitability of the scalable prototype can pave the way towards the actual adoption of the ECaPP process.
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Affiliation(s)
- Yang Lei
- School of Environmental Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China; Wetsus, Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900CC Leeuwarden, The Netherlands; Department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700AA Wageningen, The Netherlands.
| | - Zhengshuo Zhan
- School of Environmental Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China; Wetsus, Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900CC Leeuwarden, The Netherlands; Department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700AA Wageningen, The Netherlands
| | - Michel Saakes
- Wetsus, Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900CC Leeuwarden, The Netherlands
| | - Renata D van der Weijden
- Wetsus, Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900CC Leeuwarden, The Netherlands; Department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700AA Wageningen, The Netherlands.
| | - Cees J N Buisman
- Wetsus, Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900CC Leeuwarden, The Netherlands; Department of Environmental Technology, Wageningen University and Research, P.O. Box 17, 6700AA Wageningen, The Netherlands
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Sivaguru M, Saw JJ, Wilson EM, Lieske JC, Krambeck AE, Williams JC, Romero MF, Fouke KW, Curtis MW, Kear-Scott JL, Chia N, Fouke BW. Human kidney stones: a natural record of universal biomineralization. Nat Rev Urol 2021; 18:404-432. [PMID: 34031587 DOI: 10.1038/s41585-021-00469-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2021] [Indexed: 02/04/2023]
Abstract
GeoBioMed - a new transdisciplinary approach that integrates the fields of geology, biology and medicine - reveals that kidney stones composed of calcium-rich minerals precipitate from a continuum of repeated events of crystallization, dissolution and recrystallization that result from the same fundamental natural processes that have governed billions of years of biomineralization on Earth. This contextual change in our understanding of renal stone formation opens fundamentally new avenues of human kidney stone investigation that include analyses of crystalline structure and stratigraphy, diagenetic phase transitions, and paragenetic sequences across broad length scales from hundreds of nanometres to centimetres (five Powers of 10). This paradigm shift has also enabled the development of a new kidney stone classification scheme according to thermodynamic energetics and crystalline architecture. Evidence suggests that ≥50% of the total volume of individual stones have undergone repeated in vivo dissolution and recrystallization. Amorphous calcium phosphate and hydroxyapatite spherules coalesce to form planar concentric zoning and sector zones that indicate disequilibrium precipitation. In addition, calcium oxalate dihydrate and calcium oxalate monohydrate crystal aggregates exhibit high-frequency organic-matter-rich and mineral-rich nanolayering that is orders of magnitude higher than layering observed in analogous coral reef, Roman aqueduct, cave, deep subsurface and hot-spring deposits. This higher frequency nanolayering represents the unique microenvironment of the kidney in which potent crystallization promoters and inhibitors are working in opposition. These GeoBioMed insights identify previously unexplored strategies for development and testing of new clinical therapies for the prevention and treatment of kidney stones.
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Affiliation(s)
- Mayandi Sivaguru
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA. .,Carl Zeiss Labs@Location Partner, Carl R. Woese Institute for Genomic Biology University of Illinois at Urbana-Champaign, Urbana, IL, USA.
| | - Jessica J Saw
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Mayo Clinic School of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Elena M Wilson
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - John C Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Amy E Krambeck
- Department of Urology, Mayo Clinic, Rochester, MN, USA.,Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - James C Williams
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Michael F Romero
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.,Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Kyle W Fouke
- Jackson School of Geosciences, University of Texas at Austin, Austin, TX, USA
| | - Matthew W Curtis
- Carl Zeiss Microscopy LLC, One North Broadway, White Plains, NY, USA
| | | | - Nicholas Chia
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA.,Department of Individualized Medicine, Mayo Clinic, Rochester, MN, USA
| | - Bruce W Fouke
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA. .,Carl Zeiss Labs@Location Partner, Carl R. Woese Institute for Genomic Biology University of Illinois at Urbana-Champaign, Urbana, IL, USA. .,School of Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA. .,Department of Geology, University of Illinois at Urbana-Champaign, Urbana, IL, USA. .,Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA. .,Roy J. Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, IL, USA.
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125
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Janusz W, Skwarek E. Adsorption of the Tartrate Ions in the Hydroxyapatite/Aqueous Solution of NaCl System. MATERIALS 2021; 14:ma14113039. [PMID: 34204933 PMCID: PMC8199740 DOI: 10.3390/ma14113039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/16/2021] [Accepted: 06/01/2021] [Indexed: 11/16/2022]
Abstract
The research on the interaction of tartrate ions with the surface of hydroskyapatite was presented, including the measurements of the kinetics of tartrate ion adsorption and tartrate ion adsorption as a function of pH. The adsorption of tartrate ions was calculated from the loss of tartrate concentration in the solution as measured by a radioisotope method using C-14 labeled tartaric acid. In order to explain the mechanism of interaction of tartrate ions with hydroxyapatite, supplementary measurements were carried out, i.e., potentiometric measurements of the balance of released/consumed ions in the hydroxyapatite/electrolyte solution system, zeta potential measurements, FTIR spectrophotometric measurements and the hydroxyapatite crystal structure and particle size distribution were characterized. It was found that the adsorption of tartrate ions occurs as a result of the exchange of these ions with hydroxyl, phosphate and carbonate ions. Replacing the ions with the abovementioned tartrate ions leads to the appearance of a negative charge on the surface of the hydroxapatite. On the basis of XRD study and particle size distribution, a decrease in the size of crystallites and the diameter of hydroxyapatite particles in contact with a solution of 0.001 mol/dm3 of tartaric acid was found.
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Ozaki H, Hamai R, Shiwaku Y, Sakai S, Tsuchiya K, Suzuki O. Mutual chemical effect of autograft and octacalcium phosphate implantation on enhancing intramembranous bone regeneration. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2021; 22:345-362. [PMID: 34104115 PMCID: PMC8168741 DOI: 10.1080/14686996.2021.1916378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/22/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
This study examined the effect of a mixture of octacalcium phosphate (OCP) and autologous bone on bone regeneration in rat calvaria critical-sized defect (CSD). Mechanically mixed OCP and autologous bone granules (OCP+Auto), approximately 500 to 1000 μm in diameter, and each individual material were implanted in rat CSD for 8 weeks, and subjected to X-ray micro-computed tomography (micro-CT), histology, tartrate-resistant acid phosphatase (TRAP) staining, and histomorphometry for bone regeneration. Osteoblastic differentiation from mesenchymal stem cells (D1 cells) was examined in the presence of non-contacting materials by alkaline phosphatase (ALP) activity for 21 days. The material properties and medium composition before and after the incubation were determined by selected area electron diffraction (SAED) under transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and chemical analysis. The results showed that while bone formation coupled with TRAP-positive osteoclastic resorption and cellular ALP activity were the highest in the Auto group, a positive effect per OCP weight or per autologous bone weight on ALP activity was found. Although the OCP structure was maintained even after the incubation (SAED), micro-deposits were grown on OCP surfaces (TEM). Fibrous tissue was also exposed on the autologous bone surfaces (SEM). Through FT-IR absorption, it was determined that bone mineral-like characteristics of the phosphate group increased in the OCP + Auto group. These findings were interpreted as a structural change from OCP to the apatitic phase, a conclusion supported by the medium degree of saturation changes. The results demonstrate the mutual chemical effect of mixing OCP with autologous bone as an active bone substitute material.
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Affiliation(s)
- Hisashi Ozaki
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Department of Dentistry, Oral and Maxillofacial Surgery, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Ryo Hamai
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yukari Shiwaku
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
- Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Susumu Sakai
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kaori Tsuchiya
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Osamu Suzuki
- Division of Craniofacial Function Engineering, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Boonrawd W, Awad KR, Varanasi V, Meletis EI. Wettability and in-vitro study of titanium surface profiling prepared by electrolytic plasma processing. SURFACE & COATINGS TECHNOLOGY 2021; 414:127119. [PMID: 34966191 PMCID: PMC8713727 DOI: 10.1016/j.surfcoat.2021.127119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrolytic plasma processing (EPP) was used to create hydrophilic surface profiles on titanium. The wettability, surface morphology characteristics and chemical composition of the treated samples were studied as a function of EPP processing parameters. The EPP profiled surfaces comprised of a characteristic "hills and valleys" morphology because of continuous surface melting and freezing cycles. A bimodal surface profile was produced with 2-3 μm height hills and valleys with nano-roughness (≤200 nm). The produced profile resulted in a significant contact angle decrease (from 38.7° to 5.4°). Ratios of actual surface area to projection area (r) and fraction of solid surface remaining dry (φ) were obtained from profilometry. The surface characteristics and large r values produced by EPP were able to induce hemi-wicking. Hence, EPP produced superhydrophilic surfaces on Ti. The bioactivity of EPP treated Ti was evaluated using cell free and MC3T3 cells in-vitro studies. The treated Ti surface significantly increased the bioactivity and formed stoichiometric hydroxyapatite after immersion in a bone cell culture medium for 21 days. Cells' attachment and proliferation studies indicated that EPP treated surface significantly enhances the cells' adhesion and growth after 24 and 48 h compared to the untreated surface. The results show that Ti surface profiling by EPP constitutes a promising method to potentially improve bone implant bonding.
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Affiliation(s)
- Wisanu Boonrawd
- Department of Materials Science and Engineering, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Kamal R. Awad
- Department of Materials Science and Engineering, The University of Texas at Arlington, Arlington, TX 76019, USA
- Bone Muscle Research Center, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Venu Varanasi
- Department of Materials Science and Engineering, The University of Texas at Arlington, Arlington, TX 76019, USA
- Bone Muscle Research Center, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Efstathios I. Meletis
- Department of Materials Science and Engineering, The University of Texas at Arlington, Arlington, TX 76019, USA
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128
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Qiao W, Wong KHM, Shen J, Wang W, Wu J, Li J, Lin Z, Chen Z, Matinlinna JP, Zheng Y, Wu S, Liu X, Lai KP, Chen Z, Lam YW, Cheung KMC, Yeung KWK. TRPM7 kinase-mediated immunomodulation in macrophage plays a central role in magnesium ion-induced bone regeneration. Nat Commun 2021; 12:2885. [PMID: 34001887 PMCID: PMC8128914 DOI: 10.1038/s41467-021-23005-2] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 04/09/2021] [Indexed: 02/03/2023] Open
Abstract
Despite the widespread observations on the osteogenic effects of magnesium ion (Mg2+), the diverse roles of Mg2+ during bone healing have not been systematically dissected. Here, we reveal a previously unknown, biphasic mode of action of Mg2+ in bone repair. During the early inflammation phase, Mg2+ contributes to an upregulated expression of transient receptor potential cation channel member 7 (TRPM7), and a TRPM7-dependent influx of Mg2+ in the monocyte-macrophage lineage, resulting in the cleavage and nuclear accumulation of TRPM7-cleaved kinase fragments (M7CKs). This then triggers the phosphorylation of Histone H3 at serine 10, in a TRPM7-dependent manner at the promoters of inflammatory cytokines, leading to the formation of a pro-osteogenic immune microenvironment. In the later remodeling phase, however, the continued exposure of Mg2+ not only lead to the over-activation of NF-κB signaling in macrophages and increased number of osteoclastic-like cells but also decelerates bone maturation through the suppression of hydroxyapatite precipitation. Thus, the negative effects of Mg2+ on osteogenesis can override the initial pro-osteogenic benefits of Mg2+. Taken together, this study establishes a paradigm shift in the understanding of the diverse and multifaceted roles of Mg2+ in bone healing.
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Affiliation(s)
- Wei Qiao
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Dental Materials Science, Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR., China
| | - Karen H M Wong
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Jie Shen
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Wenhao Wang
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Jun Wu
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Jinhua Li
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital and Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Zhengjie Lin
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Zetao Chen
- Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, Guangzhou, China
- Zhujiang New Town Clinic, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Jukka P Matinlinna
- Dental Materials Science, Applied Oral Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR., China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China
| | - Shuilin Wu
- School of Materials Science and Engineering, Tianjin University, Tianjin, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Keng Po Lai
- Guangxi Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, China
- Department of Chemistry, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Zhuofan Chen
- Zhujiang New Town Clinic, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
| | - Yun Wah Lam
- Department of Chemistry, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China.
| | - Kenneth M C Cheung
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Kelvin W K Yeung
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, China.
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129
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A novel non-destructive technique for qualitative and quantitative measurement of dental erosion in its entirety by porosity and bulk tissue-loss. J Dent 2021; 110:103688. [PMID: 33961936 DOI: 10.1016/j.jdent.2021.103688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/11/2021] [Accepted: 05/01/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To explore the potential of combining non-contact profilometry (NCP) and confocal laser scanning microscopy (CLSM) data to measure the entire erosive process non-destructively and to validate findings using inductively coupled plasma-atomic emission spectroscopy (ICP-AES), scanning electron microscopy (SEM) and surface microhardness (SMH) using the same samples throughout. METHODS Polished bovine enamel samples (n = 35) were divided into groups (7/group) with similar SMH values. Samples underwent individual erosive challenges (1 % citric acid, pH3.8) for 1, 5, 10, 15 or 30 min under stirring and aliquot extracts were analysed for Ca and P by ICP-AES. SMH was used to measure erosive softening. Profilometry was used to assess bulk volume loss (BVL). Images were captured by SEM. Samples were stained with rhodamine-B (0.1 mM, 24 h) and images captured by CLSM. Image processing was used to determine changes in fluorescent volume for the first 10 μm (ΔFV10) for each enamel sample which were combined with BVL to calculate total lesion volume (TLV). ANOVA, linear regression and Pearson correlation analysis were used where applicable. RESULTS Surface softening, [Ca], [P], BVL and ΔFV10μm increased with acid erosion duration which were significant by 10 min (P < .01). The Ca:P ratio increased to 1.57 then decreased after 5 min erosion suggesting a sub/surface phase change, which was observed by SEM and CLSM showing significant changes to the enamel surface and subsurface morphology with time. Combination of BVL and ΔFV10 as TLV strengthened the significant correlations with [Ca], [P], and SMH (P < .01). CONCLUSION This novel combination of CLSM and NCP allows for concurrent non-destructive quantification of the entire erosive process by mineral loss, and qualitatively characterise microstructural changes during dental erosion.
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130
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The Potential of Calcium/Phosphate Containing MAO Implanted in Bone Tissue Regeneration and Biological Characteristics. Int J Mol Sci 2021; 22:ijms22094706. [PMID: 33946764 PMCID: PMC8124595 DOI: 10.3390/ijms22094706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/18/2021] [Accepted: 04/21/2021] [Indexed: 12/15/2022] Open
Abstract
Micro arc oxidation (MAO) is a prominent surface treatment to form bioceramic coating layers with beneficial physical, chemical, and biological properties on the metal substrates for biomaterial applications. In this study, MAO treatment has been performed to modify the surface characteristics of AZ31 Mg alloy to enhance the biocompatibility and corrosion resistance for implant applications by using an electrolytic mixture of Ca3(PO4)2 and C10H16N2O8 (EDTA) in the solutions. For this purpose, the calcium phosphate (Ca-P) containing thin film was successfully fabricated on the surface of the implant material. After in-vivo implantation into the rabbit bone for four weeks, the apparent growth of soft tissues and bone healing effects have been documented. The morphology, microstructure, chemical composition, and phase structures of the coating were identified by SEM, XPS, and XRD. The corrosion resistance of the coating was analyzed by polarization and salt spray test. The coatings consist of Ca-P compounds continuously have proliferation activity and show better corrosion resistance and lower roughness in comparison to mere MAO coated AZ31. The corrosion current density decreased to approximately 2.81 × 10-7 A/cm2 and roughness was reduced to 0.622 μm. Thus, based on the results, it was anticipated that the development of degradable materials and implants would be feasible using this method. This study aims to fabricate MAO coatings for orthopedic magnesium implants that can enhance bioactivity, biocompatibility, and prevent additional surgery and implant-related infections to be used in clinical applications.
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131
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Chen S, Wang Q, Eltit F, Guo Y, Cox M, Wang R. An Ammonia-Induced Calcium Phosphate Nanostructure: A Potential Assay for Studying Osteoporosis and Bone Metastasis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17207-17219. [PMID: 33845570 DOI: 10.1021/acsami.1c00495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Osteoclastic resorption of bones plays a central role in both osteoporosis and bone metastasis. A reliable in vitro assay that simulates osteoclastic resorption in vivo would significantly speed up the process of developing effective therapeutic solutions for those diseases. Here, we reported the development of a novel and robust nanostructured calcium phosphate coating with unique functions on the track-etched porous membrane by using an ammonia-induced mineralization (AiM) technique. The calcium phosphate coating uniformly covers one side of the PET membrane, enabling testing for osteoclastic resorption. The track-etched pores in the PET membrane allow calcium phosphate mineral pins to grow inside, which, on the one hand, enhances coating integration with a membrane substrate and, on the other hand, provides diffusion channels for delivering drugs from the lower chamber of a double-chamber cell culture system. The applications of the processed calcium phosphate coating were first demonstrated as a drug screening device by using alendronate, a widely used drug for osteoporosis. It was confirmed that the delivery of alendronate significantly decreased both the number of monocyte-differentiated osteoclasts and coating resorption. To demonstrate the application in studying bone metastasis, we delivered a PC3 prostate cancer-conditioned medium and confirmed that both the differentiation of monocytes into osteoclasts and the osteoclastic resorption of the calcium phosphate coating were significantly enhanced. This novel assay thus provides a new platform for studying osteoclastic activities and assessing drug efficacy in vitro.
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Affiliation(s)
- Sijia Chen
- Department of Materials Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- Centre for Hip Health and Mobility, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Qiong Wang
- Department of Materials Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Centre for Hip Health and Mobility, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Felipe Eltit
- Department of Materials Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Centre for Hip Health and Mobility, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
| | - Yubin Guo
- Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - Michael Cox
- Vancouver Prostate Centre, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - Rizhi Wang
- Department of Materials Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Centre for Hip Health and Mobility, University of British Columbia, Vancouver, BC V5Z 1M9, Canada
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Onuma K, Saito MM, Yamakoshi Y, Iijima M, Sogo Y, Momma K. Coherent surface structure induces unique epitaxial overgrowth of metastable octacalcium phosphate on stable hydroxyapatite at critical fluoride concentration. Acta Biomater 2021; 125:333-344. [PMID: 33631397 DOI: 10.1016/j.actbio.2021.02.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/22/2021] [Accepted: 02/17/2021] [Indexed: 11/16/2022]
Abstract
The phase transformation from soluble calcium phosphates to less-soluble hydroxyapatite (HAP) is a thermodynamically natural route. This process is irreversible, and effective use of poorly reactive HAP to repair teeth that have no cellular metabolism remains challenging. However, this thermodynamically controlled transformation may apparently be reversed through the fast nucleation and growth of metastable phases, leading to a reactive HAP surface. Here, the assembled HAP-nanorod phase is demonstrated to change into the metastable octacalcium phosphate (OCP) phase in a calcium phosphate solution containing 0.8 ppm fluoride. Grown OCPs display parallel surface streaks and their 11¯0 and 00l (l: odd) electron-diffraction spots are often not visible. The streaked, elongated OCP gradually grows into large plates with flat surfaces that exhibit an intense11¯0 spot. Crystal-structure models reveal that the unique epitaxial overgrowth of OCP on HAP occurs since both materials share coherent {100} faces, resulting in the distinctive disappearance of 11¯0 and 00l OCP spots. A polysynthetic twin model that reliably explains this disappearance is proposed for the growth of OCP. This apparent reverse phase transformation produces hybrid calcium phosphates consisting of HAP cores and highly reactive outer OCP layers that are promising for the repair of dentin caries. STATEMENT OF SIGNIFICANCE: This paper demonstrates important and interesting finding regarding formation of calcium phosphates in relation to their crystal structures. We first show that hydroxyapatite (HAP), the major constituent of human teeth and bone, can reversely change to its precursor, octacalcium phosphate (OCP), contrary to thermodynamic-stability rule. This apparent reverse phase transformation occurs through sharing the coherent {100} faces of both materials under controlled fluoride concentration. Nanoscale similarity of two crystal surfaces enables structurally shared epitaxial overgrowth of OCP on HAP aided by faster growth rate of OCP than that of HAP. This reaction produces hybrid crystal consisting of outer OCP and core HAP, that has not been known before and is able to be applied to dentin caries repair.
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Affiliation(s)
- Kazuo Onuma
- Department of Biochemistry and Molecular Biology, School of Dental Medicine,Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan; National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Mari M Saito
- Department of Biochemistry and Molecular Biology, School of Dental Medicine,Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
| | - Yasuo Yamakoshi
- Department of Biochemistry and Molecular Biology, School of Dental Medicine,Tsurumi University, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
| | - Mayumi Iijima
- National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan; Department of Applied Biological Chemistry, Graduated School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yu Sogo
- National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
| | - Koichi Momma
- National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan
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Choki K, Li S, Ye A, Jameson GB, Singh H. Fate of hydroxyapatite nanoparticles during dynamic in vitro gastrointestinal digestion: the impact of milk as a matrix. Food Funct 2021; 12:2760-2771. [PMID: 33683238 DOI: 10.1039/d0fo02702b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study investigated the behavior of nano-sized particles of hydroxyapatite (nHA) during dynamic in vitro gastrointestinal digestion, alone or dispersed within skim milk. The dissolution and the structural changes of nHA were investigated by analyzing the dissolution of calcium and using transmission electron microscopy and X-ray diffraction. The dissolution of nHA during gastric digestion involved a rapid early stage and a much slower later stage. It was incomplete by the end of gastric digestion, both with and without milk. However, there was no sign of nHA recrystallization in the intestinal phase. X-ray diffraction analysis of digesta showed the breakdown of the crystalline structure of nHA and the formation of potentially new calcium phosphate phases during digestion. Skim milk formed a structural clot and significantly retarded the dissolution of nHA during gastric digestion. Possible mechanisms leading to the incomplete dissolution of nHA and the matrix effect of milk are discussed.
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Affiliation(s)
- Kinley Choki
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
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Morales-Figueroa C, Teutli-Sequeira A, Linares-Hernández I, Martínez-Miranda V, Garduño-Pineda L, Barrera-Díaz CE, García-Morales MA, Mier-Quiroga MA. Phosphate removal from food industry wastewater by chemical precipitation treatment with biocalcium eggshell. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:549-565. [PMID: 33678136 DOI: 10.1080/10934529.2021.1895591] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
The physicochemical treatment (PT) of food industry wastewater was investigated. In the first stage, calcium magnesium acetate (CaMgAc4) was synthesized using eggshell (biocalcium), magnesium oxide and acetic acid in a 1:1:1 stoichiometric ratio. In the synthesis process, the thermodynamic parameters (ΔH, ΔS and ΔG) indicated that the reaction was endothermic and spontaneous. The samples were characterized by infrared spectroscopy (IR), scanning electronic microscopy (SEM), X-ray diffraction (XRD) and electron X-ray dispersive spectroscopy (EDS). CaMgAc4 was used to precipitate the phosphate matter. IR analysis revealed that the main functional groups were representative of the acetate compounds and the presence of OH- groups and carbonates. In the physicochemical treatment, a response surface design was used to determine the variables that influence the process (pH, t, and concentration), and the response variable was phosphorus removal. The treatments were carried out in the wastewater industry with an initial concentration of 658 mg/L TP. The optimal conditions of the precipitation treatment were pH 12, time 12 min, and a CaMgAc4 concentration of 13.18 mg/L. These conditions allowed the total elimination (100%) of total phosphorus and phosphates, 81.43% BOD5 and 81.0% COD, 98.9% turbidity, 95.01% color, and 92% nitrogen matter.
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Affiliation(s)
- Cristina Morales-Figueroa
- Facultad de Química, Unidad Colón, Paseo Colón esq. Paseo Tollocan, Residencial Colonia Ciprés, Toluca, Estado de México, México
| | - Alejandra Teutli-Sequeira
- Cátedras CONACyT-IITCA, Mexico City, México
- Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Universidad Autónoma del Estado de México, Toluca, Estado de México, México
| | - Ivonne Linares-Hernández
- Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Universidad Autónoma del Estado de México, Toluca, Estado de México, México
| | - Verónica Martínez-Miranda
- Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Universidad Autónoma del Estado de México, Toluca, Estado de México, México
| | - Laura Garduño-Pineda
- Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Universidad Autónoma del Estado de México, Toluca, Estado de México, México
| | - Carlos E Barrera-Díaz
- Facultad de Química, Unidad Colón, Paseo Colón esq. Paseo Tollocan, Residencial Colonia Ciprés, Toluca, Estado de México, México
| | | | - Miroslava A Mier-Quiroga
- Instituto Interamericano de Tecnología y Ciencias del Agua (IITCA), Universidad Autónoma del Estado de México, Toluca, Estado de México, México
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135
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Hinks A, MacDougall KB, Mashouri P, Smith IC. Can a chloride channel blocker mitigate muscle fatigue? J Physiol 2021; 599:2145-2147. [DOI: 10.1113/jp281424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Avery Hinks
- Neuromechanical Performance Research Lab, Department of Human Health and Nutritional Science University of Guelph Guelph ON Canada
| | - Keenan B. MacDougall
- Human Performance Lab, Faculty of Kinesiology University of Calgary Calgary AB Canada
| | - Parastoo Mashouri
- Neuromechanical Performance Research Lab, Department of Human Health and Nutritional Science University of Guelph Guelph ON Canada
| | - Ian C. Smith
- Human Performance Lab, Faculty of Kinesiology University of Calgary Calgary AB Canada
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136
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Danilchenko S, Rogulsky Y, Kulik A, Kalinkevich A, Trofimenko Y, Kalinkevich O, Chivanov V. A Simple Method to Determine the Fractions of Labile and Mineral-Bound Microelements in Bone Tissue by Atomic Absorption Spectrometry. Biol Trace Elem Res 2021; 199:935-943. [PMID: 32535747 DOI: 10.1007/s12011-020-02234-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 06/03/2020] [Indexed: 10/24/2022]
Abstract
In this work a simple and inexpensive method to assess the concentration ratio of the labile and mineral-bound microelements of the bone tissue was developed. The approach is based on the separation of the components of bone tissue by their selective solubility with the subsequent determination of microelements with atomic absorption spectrometry. The total concentrations of Mg, Zn, Fe, Sr, Al, Cu, and Mn and the concentrations of these elements in aqueous solutions with pH 6.5, 10, and 12 after their ultrasonically activated interaction with the powder of dried bone were determined. Two quite different bone samples were analyzed: a cortical fragment of the femur of a mature healthy cow and the spongy part of a human femoral head affected by osteoporosis. Some common and individual features of the both type of bones in regard to the total concentrations and fractional distribution of microelements are discussed. The obtained concentrations of the "soluble" fractions of microelements were critically analyzed taking into account the possible reactions leading to new insoluble phases' formation in alkaline solutions. Based on the data obtained, the ability of elements to form labile fractions in the bone tissue could be arranged in the following descending series: Mg ≥ Zn > Al > Fe > Mn > Cu > Sr.
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Affiliation(s)
| | - Yuri Rogulsky
- Institute of Applied Physics, NAS of Ukraine, Sumy, Ukraine
| | | | | | | | | | - Vadim Chivanov
- Institute of Applied Physics, NAS of Ukraine, Sumy, Ukraine
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137
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Carmona FJ, Dal Sasso G, Ramírez-Rodríguez GB, Pii Y, Delgado-López JM, Guagliardi A, Masciocchi N. Urea-functionalized amorphous calcium phosphate nanofertilizers: optimizing the synthetic strategy towards environmental sustainability and manufacturing costs. Sci Rep 2021; 11:3419. [PMID: 33564033 PMCID: PMC7873063 DOI: 10.1038/s41598-021-83048-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/27/2021] [Indexed: 01/30/2023] Open
Abstract
Nanosized fertilizers are the new frontier of nanotechnology towards a sustainable agriculture. Here, an efficient N-nanofertilizer is obtained by post-synthetic modification (PSM) of nitrate-doped amorphous calcium phosphate (ACP) nanoparticles (NPs) with urea. The unwasteful PSM protocol leads to N-payloads as large as 8.1 w/w%, is well replicated by using inexpensive technical-grade reagents for cost-effective up-scaling and moderately favours urea release slowdown. Using the PSM approach, the N amount is ca. 3 times larger than that obtained in an equivalent one-pot synthesis where urea and nitrate are jointly added during the NPs preparation. In vivo tests on cucumber plants in hydroponic conditions show that N-doped ACP NPs, with half absolute N-content than in conventional urea treatment, promote the formation of an equivalent amount of root and shoot biomass, without nitrogen depletion. The high nitrogen use efficiency (up to 69%) and a cost-effective preparation method support the sustainable real usage of N-doped ACP as a nanofertilizer.
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Affiliation(s)
- Francisco J Carmona
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, 22100, Como, Italy.
| | - Gregorio Dal Sasso
- Institute of Crystallography and To.Sca.Lab, Consiglio Nazionale Delle Ricerche, Via Valleggio 11, 22100, Como, Italy
| | | | - Youry Pii
- Faculty of Science and Technologies, Free University of Bolzano, Piazza Università 5, 39100, Bolzano, Italy
| | - José Manuel Delgado-López
- Department of Inorganic Chemistry, University of Granada, Av. Fuentenueva S/N, 18071, Granada, Spain
| | - Antonietta Guagliardi
- Institute of Crystallography and To.Sca.Lab, Consiglio Nazionale Delle Ricerche, Via Valleggio 11, 22100, Como, Italy.
| | - Norberto Masciocchi
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, 22100, Como, Italy.
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138
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Costa AI, Gemini-Piperni S, Alves AC, Costa NA, Checca NR, Leite PE, Rocha LA, Pinto AMP, Toptan F, Rossi AL, Ribeiro AR. TiO 2 bioactive implant surfaces doped with specific amount of Sr modulate mineralization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111735. [PMID: 33545878 DOI: 10.1016/j.msec.2020.111735] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/30/2020] [Accepted: 11/11/2020] [Indexed: 11/27/2022]
Abstract
One of the main problems that remain in the implant industry is poor osseointegration due to bioinertness of implants. In order to promote bioactivity, calcium (Ca), phosphorus (P) and strontium (Sr) were incorporated into a TiO2 porous layer produced by micro-arc oxidation. Ca and P as bioactive elements are already well reported in the literature, however, the knowledge of the effect of Sr is still limited. In the present work, the effect of various amounts of Sr was evaluated and the morphology, chemical composition and crystal structure of the oxide layer were investigated. Furthermore, in vitro studies were carried out using human osteoblast-like cells. The oxide layer formed showed a triplex structure, where higher incorporation of Sr increased Ca/P ratio, amount of rutile and promoted the formation of SrTiO3 compound. Biological tests revealed that lower concentrations of Sr did not compromise initial cell adhesion neither viability and interestingly improved mineralization. However, higher concentration of Sr (and consequent higher amount of rutile) showed to induce collagen secretion but with compromised mineralization, possibly due to a delayed mineralization process or induced precipitation of deficient hydroxyapatite. Ca-P-TiO2 porous layer with less concentration of Sr seems to be an ideal candidate for bone implants.
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Affiliation(s)
- A I Costa
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal; DEMM - Department of Metallurgical and Materials Engineering, Faculty of Engineering of the University of Porto, Porto, Portugal.
| | - S Gemini-Piperni
- Postgraduate Program of Translational Biomedicine, University Grande Rio, Duque de Caxias, Brazil; IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil
| | - A C Alves
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal
| | - N A Costa
- IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil; Postgraduate Program in Materials Science and Technology, São Paulo State University, Bauru, São Paulo, Brazil
| | - N R Checca
- CBPF - Brazilian Centre for Research in Physics, Rio de Janeiro, Brazil
| | - P E Leite
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Xérem, Rio de Janeiro, Brazil; Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Xérem, Rio de Janeiro, Brazil
| | - L A Rocha
- IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil; Faculty of Science, Department of Physics, São Paulo State University, Bauru, São Paulo, Brazil
| | - A M P Pinto
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal; DEM - Department of Mechanical Engineering, University of Minho, Guimarães, Portugal
| | - F Toptan
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal; IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil
| | - A L Rossi
- CBPF - Brazilian Centre for Research in Physics, Rio de Janeiro, Brazil
| | - A R Ribeiro
- Postgraduate Program of Translational Biomedicine, University Grande Rio, Duque de Caxias, Brazil; IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil; Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Xérem, Rio de Janeiro, Brazil
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139
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Şahin E, Çiftçioğlu M. Compositional, microstructural and mechanical effects of NaCl porogens in brushite cement scaffolds. J Mech Behav Biomed Mater 2021; 116:104363. [PMID: 33550144 DOI: 10.1016/j.jmbbm.2021.104363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 11/30/2022]
Abstract
Modification of the setting process of brushite cements by varying the concentration of ions that alter calcium phosphate crystallization kinetics, is known to enable control on the monetite conversion extent and the accompanying microporosity. This is useful because monetite serves as a suitable matrix in macroporous scaffolds due to its higher phase stability and finer crystal morphology compared to its hydrous counterpart brushite. In this study the synergistic effect of NaCl and citric acid on the microstructural evolution of brushite cement was demonstrated and microporosity of macroporous monetite-rich cement blocks was minimized by a variable NaCl porogen size distribution approach. Initially, maximum packing ratio of various combinations of NaCl size groups in PEG were determined by their rheological analysis in a range between 57% and 69%. Statistical analysis revealed a positive correlation between the amounts of NaCl particles under 38μm and 212μm and the maximum packing ratio. Further broadening the size distributions of NaCl porogens with fine cement precursors was effective in increasing the solids packing ratio of cement blocks more than the maximum packing ratio for the porogens. This improvement in packing was accompanied by a reduction in microporosity despite the increase in micropore volume with ion induced monetite formation. The detrimental effect of the microporosity introduced to the structure during monetite formation was balanced for some size distributions and not so much for others, thereby resulting in a wide range of porosities and mechanical properties. Thus, the exponential dependence of mechanical properties on porosity and the mechanical properties of monetite-rich macroporous blocks at the theoretical zero-porosity were determined according to Rice's model. Zero-porosity extrapolations were much higher than those predicted for brushite cement, contrary to the common assumption that brushite is mechanically stronger than monetite.
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Affiliation(s)
- Erdem Şahin
- Department of Metallurgical and Materials Engineering, Muğla Sıtkı Koçman University, Muğla, Turkey.
| | - Muhsin Çiftçioğlu
- Department of Chemical Engineering, İzmir Institute of Technology, İzmir, Turkey.
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140
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Arola K, Mänttäri M, Kallioinen M. Two-stage nanofiltration for purification of membrane bioreactor treated municipal wastewater – Minimization of concentrate volume and simultaneous recovery of phosphorus. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117255] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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141
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Wu S, Zhang M, Song J, Weber S, Liu X, Fan C, Wu Y. Fine Customization of Calcium Phosphate Nanostructures with Site-Specific Modification by DNA Templated Mineralization. ACS NANO 2021; 15:1555-1565. [PMID: 33332975 DOI: 10.1021/acsnano.0c08998] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Calcium phosphate (Ca-P) is the most abundant biomineral in hard tissues with diverse microstructures, which in nature ensure a broad range of functionalities with virtually similar and simple chemical compositions. Artificial fabrication of rationally designed Ca-P materials with arbitrary microstructures is a long-standing challenge for inorganic chemists. Although DNA nanotechnology has been elegantly used to modulate the nanofabrication of inorganic materials because of its programmability, encoding customized Ca-P mineralization with high structural precision remains unachievable because of fast affinity-driven crystal growth. Herein, this long-standing ambition has been skillfully fulfilled by taking advantage of crystallization via a particle attachment (CPA) process. The derived hybrid materials not only well inherited the structural details encoded by the DNA template but also exhibited significantly enhanced mechanical strength, even after heating. Moreover, this method preserved preinstalled synthetic functionalities on the DNA surface, allowing for downstream site-specific modification.
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Affiliation(s)
- Shanshan Wu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Load, Wuhan 430074, China
| | - Meizhou Zhang
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Load, Wuhan 430074, China
| | - Jie Song
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Stefan Weber
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200024, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200024, China
| | - Yuzhou Wu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Load, Wuhan 430074, China
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142
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Liu P, Li Z, Yuan L, Sun X, Zhou Y. Pourbaix-Guided Mineralization and Site-Selective Photoluminescence Properties of Rare Earth Substituted B-Type Carbonated Hydroxyapatite Nanocrystals. Molecules 2021; 26:molecules26030540. [PMID: 33494216 PMCID: PMC7864488 DOI: 10.3390/molecules26030540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 12/17/2022] Open
Abstract
Rare-earth labeling in biological apatite could provide critical information for the pathologic transition (osteoclastic) and physiologic regeneration (osteogenesis) of bone and teeth because of their characteristic site-sensitive fluorescence in different coordinative conditions of various tissues in many biological processes. However, the rare-earth labeling method for biological apatites, i.e., carbonated-hydroxyapatite, has been rarely found in the literature. In this paper, we report a Pourbaix-diagram guided mineralizing strategy to controllable carbonation and doping of rare-earth ions in the hydroxyapatite (HA) lattice. The carbonation process of hydroxyapatite was achieved by controllable mineralization in hydrothermal condition with K2CO3 as the carbonate source, which results into the pure B-type carbonated hydroxyapatite (CHA) with tunable carbonate substitution degree. All of the as-synthesized materials crystalized into P63/m (No. 176) space group with the lattice parameter of a decreases and c increases with the increasing of carbonate content in the reactants. Structural refinement results revealed that the substitution of planar CO32− is superimposed on one of the faces of PO43− tetrahedral sub-units with a rotation angle of 30° in reference to c-axis. All of the hydrothermally synthesized CHA nanocrystals show hexagonal rod-like morphology with the length of 70–110 nm and diameter of 21–35 nm, and the decreasing length/diameter ratio from 3.61 to 2.96 from low to high carbonated level of the samples. Five rare-earth cations, of Pr3+, Sm3+, Eu3+, Tb3+, and Ho3+, were used as possible probe ions that can be doped into either HA or CHA lattice. The site-preference of Tb3+ doping is the same in the crystallographic site of HA and CHA according to characteristic emission peaks of 5D4–7Fj (j = 3–6) transitions in their photoluminescent spectroscopy. Our work provides a controllable carbonation method for rare-earth labeling hydroxyapatite nanomaterials with potential biologically active implant powders for bone repair and tissue regeneration.
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Affiliation(s)
- Peng Liu
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
| | - Zhengqiang Li
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
| | - Long Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, College of Physics, Jilin Normal University, Changchun 130103, China
- Correspondence: (L.Y.); (Y.Z.)
| | - Xiaolin Sun
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
| | - Yanmin Zhou
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
- Correspondence: (L.Y.); (Y.Z.)
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143
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Bertolotti F, Carmona FJ, Dal Sasso G, Ramírez-Rodríguez GB, Delgado-López JM, Pedersen JS, Ferri F, Masciocchi N, Guagliardi A. On the amorphous layer in bone mineral and biomimetic apatite: A combined small- and wide-angle X-ray scattering analysis. Acta Biomater 2021; 120:167-180. [PMID: 32438109 DOI: 10.1016/j.actbio.2020.04.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/04/2020] [Accepted: 04/13/2020] [Indexed: 01/02/2023]
Abstract
The occurrence of an amorphous calcium phosphate layer covering the crystalline apatite core has been suggested to be an intrinsic feature of both bone mineral and synthetic biomimetic analogs. However, an exahustive quantitative picture of the amorphous-crystalline relationship in these materials is still missing. Here, we present a multiple scale modelling that combines small-angle X-ray scattering (SAXS) and synchrotron wide-angle X-ray total scattering (WAXTS) analyses to investigate the amorphous-crystalline spatial interplay in bone sample and biomimetic carbonated nano-apatites. SAXS analysis indicates the presence of a single morphology consisting of tiny nanoplates (NPLs) and provides a measure of their thickness (falling in the 3-5 nm range). WAXTS analysis was performed by developing atomistic models of apatite NPLs incorporating lattice strain, mostly attributed to the carbonate content, and calculating the X-ray patterns using the Debye Scattering Equation. Upon model optimization, the size and strain parameters of the crystalline platelets were derived and the amorphous component, co-existing with the crystalline one, separated and quantified (in the 23-33 wt% range). Notably, the thickness of the apatite core was found to exhibit nearly null (bone) or minor (< 0.5 nm, biomimetic samples) deviations from that of the entire NPLs, suggesting that the amorphous material remains predominantly distributed along the lateral sides of the NPLs, in a core-crown-like arrangement. The lattice strain analysis indicates a significant stiffness along the c axis, which is comparable in bone and synthetic samples, and larger deformations in the other directions. STATEMENT OF SIGNIFICANCE: Current models of bone mineral and biomimetic nanoapatites suggest the occurrence of an amorphous layer covering the apatitic crystalline nanoplates in a core-shell arrangement. By combining X-ray scattering techniques in the small and wide angle regions, we propose a joint atomic-to-nanometre scale modelling to investigate the amorphous-crystalline interplay within the nanoplates. Estimates are extracted for the thickness of the entire nanoplates and the crystalline core, together with the quantification of the amorphous fraction and apatite lattice strain. Based on the thickness matching, the location of the amorphous material mostly along the edges of the nanoplates is inferred, with a vanishing or very thin layer in the thickness direction, suggesting a core-crown-like arrangement, with possible implications on the mineral surface reactivity.
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Affiliation(s)
- Federica Bertolotti
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, I-22100 Como, Italy
| | - Francisco J Carmona
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, I-22100 Como, Italy
| | - Gregorio Dal Sasso
- Institute of Crystallography and To.Sca.Lab, Consiglio Nazionale delle Ricerche, Via Valleggio 11, I-22100 Como, Italy
| | - Gloria B Ramírez-Rodríguez
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, I-22100 Como, Italy; Department of Inorganic Chemistry, University of Granada, Av. Fuentenueva S/N, E-18071 Granada, Spain
| | - José Manuel Delgado-López
- Department of Inorganic Chemistry, University of Granada, Av. Fuentenueva S/N, E-18071 Granada, Spain
| | - Jan Skov Pedersen
- Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus, Denmark
| | - Fabio Ferri
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, I-22100 Como, Italy
| | - Norberto Masciocchi
- Department of Science and High Technology and To.Sca.Lab, University of Insubria, Via Valleggio 11, I-22100 Como, Italy.
| | - Antonietta Guagliardi
- Institute of Crystallography and To.Sca.Lab, Consiglio Nazionale delle Ricerche, Via Valleggio 11, I-22100 Como, Italy.
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144
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Tiskaya M, Shahid S, Gillam D, Hill R. The use of bioactive glass (BAG) in dental composites: A critical review. Dent Mater 2021; 37:296-310. [PMID: 33441250 DOI: 10.1016/j.dental.2020.11.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/23/2020] [Accepted: 11/21/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE In recent years, numerous studies have analyzed the role of bioactive glass (BAG) as remineralizing additives in dental restorative composites. This current review provides a critical analysis of the existing literature, particularly focusing on BAGs prepared via the melt-quench route that form an "apatite-like" phase when immersed in physiological-like solutions. METHODS Online databases (Science Direct, PubMed and Google Scholar) were used to collect data published from 1962 to 2020. The research papers were analyzed and the relevant papers were selected for this review. Sol-gel BAGs were not included in this review since it is not a cost-effective manufacturing technique that can be upscaled and is difficult to incorporate fluoride. RESULTS BAGs release Ca2+, PO43- and F- ions, raise the pH and form apatite. There are numerous published papers on the bioactivity of BAGs, but the different glass compositions, volume fractions, particle sizes, immersion media, time points, and the characterization techniques used, make comparison difficult. Several papers only use certain characterization techniques that do not provide a full picture of the behavior of the glass. It was noted that in most studies, mechanical properties were measured on dry samples, which does not replicate the conditions in the oral environment. Therefore, it is recommended that samples should be immersed for longer time periods in physiological solutions to mimic clinical environments. SIGNIFICANCE BAGs present major benefits in dentistry, especially their capacity to form apatite, which could potentially fill any marginal gaps produced due to polymerization shrinkage.
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Affiliation(s)
- Melissa Tiskaya
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK.
| | - Saroash Shahid
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK
| | - David Gillam
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK
| | - Robert Hill
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK
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145
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Zhai H, Zhang W, Wang L, Putnis CV. Dynamic force spectroscopy for quantifying single-molecule organo–mineral interactions. CrystEngComm 2021. [DOI: 10.1039/d0ce00949k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Organo–mineral interactions have long been the focus in the fields of biomineralization and geomineralization, since such interactions not only modulate the dynamics of crystal nucleation and growth but may also change crystal phases, morphologies, and structures.
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Affiliation(s)
- Hang Zhai
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
- China
- Department of Plant and Environmental Sciences
| | - Wenjun Zhang
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Lijun Wang
- College of Resources and Environment
- Huazhong Agricultural University
- Wuhan 430070
- China
| | - Christine V. Putnis
- Institut für Mineralogie
- University of Münster
- 48149 Münster
- Germany
- School of Molecular and Life Science
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146
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Saengdet P(M, Ogawa M. Directional growth of octacalcium phosphate using micro-flow reactor mixing and subsequent aging. RSC Adv 2021; 11:15969-15976. [PMID: 35481191 PMCID: PMC9031023 DOI: 10.1039/d1ra00827g] [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: 01/31/2021] [Accepted: 04/19/2021] [Indexed: 12/22/2022] Open
Abstract
Well-defined belt-shaped particles of octacalcium phosphate were prepared by mixing aqueous solutions of calcium acetate and that of sodium phosphate monobasic with the aid of a micro-flow reactor. Higher crystallinity and narrower particle size distribution were achieved by the micro-flow reactor if compared with the results of the batch reaction using the same solutions. The width of the belt was controlled by the mixing temperature (0.8 and 2.3 μm for the preparation at 50 and 70 °C, respectively). Post mixing aging at 50 °C, resulted in the directional growth of belt-shaped particles to obtain particles with the length of 17 μm (aspect ratio of 53). XRD and TEM analysis indicated that the micro-flow reactor could separate nucleation and growth allowing preferential growth along the a-direction. Well-defined octacalcium phosphate particles with varied size and aspect ratio were prepared by a micro-flow reactor mixing and subsequent aging in different temperature and aging time. ![]()
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Affiliation(s)
- Ploypailin (Milin) Saengdet
- School of Energy Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
| | - Makoto Ogawa
- School of Energy Science and Engineering
- Vidyasirimedhi Institute of Science and Technology (VISTEC)
- Rayong 21210
- Thailand
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147
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Reynaud C, Thomas C, Casale S, Nowak S, Costentin G. Development of a thermodynamic approach to assist the control of the precipitation of hydroxyapatites and associated calcium phosphates in open systems. CrystEngComm 2021. [DOI: 10.1039/d1ce00482d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Thermodynamics of the precipitation of calcium phosphates shows the importance of the pH and the order of introduction of the precursor ions on the textural (morphology, surface area) and structural (defects) properties of hydroxyapatites.
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Affiliation(s)
- Corentin Reynaud
- Sorbonne Université
- CNRS
- Laboratoire de Réactivité de Surface (LRS)
- 75005 Paris
- France
| | - Cyril Thomas
- Sorbonne Université
- CNRS
- Laboratoire de Réactivité de Surface (LRS)
- 75005 Paris
- France
| | - Sandra Casale
- Sorbonne Université
- CNRS
- Laboratoire de Réactivité de Surface (LRS)
- 75005 Paris
- France
| | - Sophie Nowak
- Plateforme Rayons X
- UFR de Chimie
- Université Paris Diderot
- Paris
- France
| | - Guylène Costentin
- Sorbonne Université
- CNRS
- Laboratoire de Réactivité de Surface (LRS)
- 75005 Paris
- France
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148
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Sugiura Y, Makita Y, Horie M. Ammonium-to-sodium ion-exchange process at the interlayer of octacalcium phosphate. RSC Adv 2021; 11:39503-39507. [PMID: 35492470 PMCID: PMC9044421 DOI: 10.1039/d1ra07939e] [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: 10/28/2021] [Accepted: 12/04/2021] [Indexed: 01/17/2023] Open
Abstract
Octacalcium phosphate (OCP) has been considered as the layer component of calcium phosphate, but whether it achieves the ionic-exchange ability of conventional layer components is unclear. As OCP is highly biocompatible, understanding its ionic-exchange properties would potentially expand its pharmaceutical and medical applications. Herein, we demonstrate that the substituted cations in ammonium (NH4)-substituted octacalcium phosphate (OCP-NH4) and sodium (Na)-containing ammonium phosphate solutions undergo ion exchanges with OCP interlayers. Replacing NH4+ with Na+ did not alter the crystal structure of OCP, confirming that a substituted cation exchange process similar to that in other layered compounds occurs in OCP. Octacalcium phosphate (OCP) has been considered as the layer component of calcium phosphate, but whether it achieves the ionic-exchange ability of conventional layer components is unclear. In this study, we demonstrated the evidence of ionic exchange process at the interlayer of OCP.![]()
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Affiliation(s)
- Yuki Sugiura
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa, Japan, 761-0395
| | - Yoji Makita
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa, Japan, 761-0395
| | - Masanori Horie
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi-cho, Takamatsu, Kagawa, Japan, 761-0395
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149
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Romero-Castillo I, López-Ruiz E, Fernández-Sánchez JF, Marchal JA, Gómez-Morales J. Self-Assembled Type I Collagen-Apatite Fibers with Varying Mineralization Extent and Luminescent Terbium Promote Osteogenic Differentiation of Mesenchymal Stem Cells. Macromol Biosci 2020; 21:e2000319. [PMID: 33369064 DOI: 10.1002/mabi.202000319] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/27/2020] [Indexed: 11/10/2022]
Abstract
This work explores in depth the simultaneous self-assembly and mineralization of type I collagen by a base-acid neutralization technique to prepare biomimetic collagen-apatite fibrils with varying mineralization extent and doped with luminescent bactericidal Tb3+ ions. Two variants of the method are tested: base-acid titration, a solution of Ca(OH)2 is added dropwise to a stirred solution containing type I collagen dispersed in H3 PO4 ; and direct mixing, the Ca(OH)2 solution is added by fast dripping onto the acidic solution. Only the direct mixing variant yielded an effective control of calcium phosphate polymorphism. Luminescence spectroscopy reveals the long luminescence lifetime and high relative luminescence intensity of the Tb3+ -doped materials, while two-photon confocal fluorescence microscopy shows the characteristic green fluorescence light when using excitation wavelength of 458 nm, which is not harmful to bone tissue. Cytotoxicity/viability tests reveal that direct mixing samples show higher cell proliferation than titration samples. Additionally, osteogenic differentiation essays show that all mineralized fibrils promote the osteogenic differentiation, but the effect is more pronounced when using samples prepared by direct mixing, and more notably when using the Tb3+ -doped mineralized fibrils. Based on these findings it is concluded that the new nanocomposite is an ideal candidate for bone regenerative therapy.
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Affiliation(s)
- Ismael Romero-Castillo
- Laboratorio de Estudios Cristalográficos, IACT-CSIC-UGR, Avda. Las Palmeras, no. 4, Armilla, Granada, E-18100, Spain
| | - Elena López-Ruiz
- Instituto de Investigación Biosanitaria ibs. Granada, University of Granada, Granada, E-18014, Spain.,Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research, University of Granada, Granada, E-18100, Spain.,Excellence Research Unit "Modelling Nature" (MNat), University of Granada, Granada, E-18071, Spain.,Department of Health Science, Faculty of Experimental Science, University of Jaén, Jaén, E-23071, Spain
| | | | - Juan Antonio Marchal
- Instituto de Investigación Biosanitaria ibs. Granada, University of Granada, Granada, E-18014, Spain.,Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research, University of Granada, Granada, E-18100, Spain.,Excellence Research Unit "Modelling Nature" (MNat), University of Granada, Granada, E-18071, Spain
| | - Jaime Gómez-Morales
- Laboratorio de Estudios Cristalográficos, IACT-CSIC-UGR, Avda. Las Palmeras, no. 4, Armilla, Granada, E-18100, Spain
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150
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Kravchik MV, Subbot AM, Novikov IA, Antonov AA, Petrov SY, Avetisov SE. Biomineralization of Trabecular Meshwork in Open-Angle Glaucoma. DOKL BIOCHEM BIOPHYS 2020; 495:307-310. [PMID: 33368041 DOI: 10.1134/s1607672920060083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 11/23/2022]
Abstract
A new form of open-angle glaucoma has been identified, in which calcification and silicification of the trabecular meshwork is a potentially significant component of outflow obstruction. It is noted that the mineralization of this area is promoted by various disturbances in the acid-base balance in the tissue. The role of melanosomal enzymes in the initiation of the formation of mineral calcium phosphate in trabecular tissue in open-angle glaucoma is considered.
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Affiliation(s)
- M V Kravchik
- Research Institute of Eye Diseases, Moscow, Russia.
| | - A M Subbot
- Research Institute of Eye Diseases, Moscow, Russia
| | - I A Novikov
- Research Institute of Eye Diseases, Moscow, Russia
| | - A A Antonov
- Research Institute of Eye Diseases, Moscow, Russia
| | - S Yu Petrov
- Research Institute of Eye Diseases, Moscow, Russia
| | - S E Avetisov
- Research Institute of Eye Diseases, Moscow, Russia
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