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Aubry C, Drouet C, Azaïs T, Kim HJ, Oh JM, Karacan I, Chou J, Ben-Nissan B, Camy S, Cazalbou S. Bio-Activation of HA/β-TCP Porous Scaffolds by High-Pressure CO 2 Surface Remodeling: A Novel "Coating-from" Approach. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7306. [PMID: 36295371 PMCID: PMC9610974 DOI: 10.3390/ma15207306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Biphasic macroporous Hydroxyapatite/β-Tricalcium Phosphate (HA/β-TCP) scaffolds (BCPs) are widely used for bone repair. However, the high-temperature HA and β-TCP phases exhibit limited bioactivity (low solubility of HA, restricted surface area, low ion release). Strategies were developed to coat such BCPs with biomimetic apatite to enhance bioactivity. However, this can be associated with poor adhesion, and metastable solutions may prove difficult to handle at the industrial scale. Alternative strategies are thus desirable to generate a highly bioactive surface on commercial BCPs. In this work, we developed an innovative "coating from" approach for BCP surface remodeling via hydrothermal treatment under supercritical CO2, used as a reversible pH modifier and with industrial scalability. Based on a set of complementary tools including FEG-SEM, solid state NMR and ion exchange tests, we demonstrate the remodeling of macroporous BCP surface with the occurrence of dissolution-reprecipitation phenomena involving biomimetic CaP phases. The newly precipitated compounds are identified as bone-like nanocrystalline apatite and octacalcium phosphate (OCP), both known for their high bioactivity character, favoring bone healing. We also explored the effects of key process parameters, and showed the possibility to dope the remodeled BCPs with antibacterial Cu2+ ions to convey additional functionality to the scaffolds, which was confirmed by in vitro tests. This new process could enhance the bioactivity of commercial BCP scaffolds via a simple and biocompatible approach.
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Affiliation(s)
- Clémentine Aubry
- Centre Inter-Universitaire de Recherche et d’Ingénierie des Matériaux, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
- Laboratoire de Génie Chimique, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
- ARN: Régulation Naturelle et Artificielle, INSERM U1212, CNRS, Université de Bordeaux, 33076 Bordeaux, France
| | - Christophe Drouet
- Centre Inter-Universitaire de Recherche et d’Ingénierie des Matériaux, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
| | - Thierry Azaïs
- Laboratoire de Chimie de la Matière Condensée de Paris-UMR 7574, CNRS, Sorbonne Université, 75005 Paris, France
| | - Hyoung-Jun Kim
- Department Energy and Materials Engineering, Dongguk University, Seoul 04620, Korea
- Research Institute, National Cancer Center, Goyang 10408, Korea
| | - Jae-Min Oh
- Department Energy and Materials Engineering, Dongguk University, Seoul 04620, Korea
| | - Ipek Karacan
- University of Technology Sydney, Ultimo 2007, Australia
| | - Joshua Chou
- University of Technology Sydney, Ultimo 2007, Australia
| | | | - Séverine Camy
- Laboratoire de Génie Chimique, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
| | - Sophie Cazalbou
- Centre Inter-Universitaire de Recherche et d’Ingénierie des Matériaux, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
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Kizalaite A, Klimavicius V, Versockiene J, Lastauskiene E, Murauskas T, Skaudzius R, Yokoi T, Kawashita M, Goto T, Sekino T, Zarkov A. Peculiarities of the formation, structural and morphological properties of zinc whitlockite (Ca 18Zn 2(HPO 4) 2(PO 4) 12) synthesized via a phase transformation process under hydrothermal conditions. CrystEngComm 2022. [DOI: 10.1039/d2ce00497f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In the present work, the formation of zinc whitlockite via a dissolution–precipitation process was investigated in detail. The influence of medium pH, reaction time, temperature and concentration of precursors on the formation of the material was studied.
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Affiliation(s)
- Agne Kizalaite
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Vytautas Klimavicius
- Institute of Chemical Physics, Vilnius University, Sauletekio 3, LT-10257, Vilnius, Lithuania
| | - Justina Versockiene
- Institute of Biosciences, Life Sciences Center, Vilnius University, Sauletekio 7, LT-10257 Vilnius, Lithuania
| | - Egle Lastauskiene
- Institute of Biosciences, Life Sciences Center, Vilnius University, Sauletekio 7, LT-10257 Vilnius, Lithuania
| | - Tomas Murauskas
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Ramunas Skaudzius
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Taishi Yokoi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Masakazu Kawashita
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tomoyo Goto
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tohru Sekino
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Aleksej Zarkov
- Institute of Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
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Srinivasan B, Kolanthai E, Asthagiri Kumaraswamy NE, Pugazhendhi AS, Catalani LH, Subbaraya NK. Vacancy-Induced Visible Light-Driven Fluorescence in Toxic Ion-Free Resorbable Magnetic Calcium Phosphates for Cell Imaging Applications. ACS APPLIED BIO MATERIALS 2021; 4:3256-3263. [PMID: 35014412 DOI: 10.1021/acsabm.0c01617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multifunctional nanosized particles are very beneficial in the field of biomedicine. Bioactive and highly biocompatible calcium phosphate (CaP) nanoparticles (∼50 nm) exhibiting both superparamagnetic and fluorescence properties were synthesized by incorporating dual ions (Fe3+ and Sr2+) in HAp (hydroxyapatite) [Ca10(PO4)6(OH)2]. Insertion of Fe3+ creates oxygen vacancies at the PO43- site, thereby destabilizing the structure. Thus, in order to maintain the structural stability, Sr2+ has been incorporated. This incorporation of Sr2+ leads to an intense emission at 550 nm. HAp nanoparticles when subjected to thermal treatment (800 °C) transform to β-TCP, exhibiting emission at 710 nm due to the emergence of an intermediate band. Moreover, these nanoparticles exhibit fluorescence in visible light when compared to the other UV and IR fluorescence excitation sources which could damage the tissues. The synthesis involving the combination of ultrasound and microwave techniques resulted in the distribution of Fe3+ in the interstitial sites of CaP, which is responsible for the excellent fluorescent properties. Moreover, thermally treated CaP becomes superparamagnetic, without affecting the desired optical properties. The bioactive, biocompatible, magnetic, and fluorescent properties of this resorbable CaP which is free from toxic heavy metals (Eu, Gd, etc.) could help in overcoming the long-term cytotoxicity. This could also be useful in tracking the location of the nanoparticles during drug delivery and magnetic hyperthermia. The bioactive fluorescent CaP nanoparticle helps in monitoring the bone growth and in addition, it could be employed in cell imaging applications. The in vitro MCF-7 imaging using the nanoparticles after 24 h of uptake at 465 nm evidences the bioimaging capability of the prepared nanoparticles. The reproducibility of the defect level is essential for the defect-induced emission properties. The synthesis of nontoxic fluorescent CaP is highly reproducible with the present synthesis method. Hence, it could be safely employed in various biomedical applications.
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Affiliation(s)
- Baskar Srinivasan
- Crystal Growth Centre, Anna University, Chennai 600 025, Tamil Nadu, India
| | - Elayaraja Kolanthai
- Departamento de Química Fundamental, Instituto de Química, University of São Paulo, Av. Prof. LineuPrestes, 784, São Paulo 05508-000, Brazil.,Department of Materials Science & Engineering, Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando 32816, Florida, USA
| | | | - Abinaya Sindu Pugazhendhi
- Departamento de Química Fundamental, Instituto de Química, University of São Paulo, Av. Prof. LineuPrestes, 784, São Paulo 05508-000, Brazil
| | - Luiz Henrique Catalani
- Departamento de Química Fundamental, Instituto de Química, University of São Paulo, Av. Prof. LineuPrestes, 784, São Paulo 05508-000, Brazil
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Chandran L, Am B. Apatite matrix substituted with biologically essential rare earth elements as an artificial hard tissue substitute: Systematic physicochemical and biological evaluation. J Biomed Mater Res A 2020; 109:821-828. [PMID: 33463034 DOI: 10.1002/jbm.a.37069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 01/28/2020] [Accepted: 02/04/2020] [Indexed: 01/07/2023]
Abstract
Hydroxyapatite (HAP) forms the main inorganic component of natural bone and hence has been widely use in implant applications. Ionic substitutions in apatite also gains enormous interest during the recent years due to the crucial role played by these elements in the biological process. In this context, the least investigated elements namely lanthanum (La3+ ) and praseodymium (Pr3+ ) have been selected as a potential substitutions in apatite. The results from the analytical techniques confirm the phase purity of the HAP and its ability holds the substitutions at its lattice. Morphological analysis unveils the presence of agglomerated spheroids notwithstanding the ion concentration of substituents. EDX spectra affirm the presence of La and Pr alongside the determined Ca/P atomic ratio of 1.67. La3+ and Pr3+ presence envisaged the good antibacterial efficiency against the tested microbes and further demonstrated the biocompatibility nature from the cytotoxicity analysis.
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Affiliation(s)
- Likha Chandran
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, India
| | - Ballamurugan Am
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, India
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Boanini E, Gazzano M, Nervi C, Chierotti MR, Rubini K, Gobetto R, Bigi A. Strontium and Zinc Substitution in β-Tricalcium Phosphate: An X-ray Diffraction, Solid State NMR and ATR-FTIR Study. J Funct Biomater 2019; 10:jfb10020020. [PMID: 31060308 PMCID: PMC6616520 DOI: 10.3390/jfb10020020] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/10/2019] [Accepted: 04/28/2019] [Indexed: 01/15/2023] Open
Abstract
β-tricalcium phosphate (β-TCP) is one of the most common bioceramics, widely applied in bone cements and implants. Herein we synthesized β-TCP by solid state reaction in the presence of increasing amounts of two biologically active ions, namely strontium and zinc, in order to clarify the structural modifications induced by ionic substitution. The results of X-ray diffraction analysis indicate that zinc can substitute for calcium into a β-TCP structure up to about 10 at% inducing a reduction of the cell parameters, whereas the substitution occurs up to about 80 at% in the case of strontium, which provokes a linear increase of the lattice constants, and a slight modification into a more symmetric structure. Rietveld refinements and solid-state 31P NMR spectra demonstrate that the octahedral Ca(5) is the site of β-TCP preferred by the small zinc ion. ATR-FTIR results indicate that zinc substitution provokes a disorder of β-TCP structure. At variance with the behavior of zinc, strontium completely avoids Ca(5) site even at high concentration, whereas it exhibits a clear preference for Ca(4) site. The infrared absorption bands of β-TCP show a general shift towards lower wavenumbers on increasing strontium content. Particularly significant is the shift of the infrared symmetric stretching band at 943 cm−1 due to P(1), that is the phosphate more involved in Ca(4) coordination, which further supports the occupancy preference of strontium.
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Affiliation(s)
- Elisa Boanini
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy.
| | | | - Carlo Nervi
- Department of Chemistry, University of Torino, via P. Giuria 7, 10125 Torino, Italy.
| | - Michele R Chierotti
- Department of Chemistry, University of Torino, via P. Giuria 7, 10125 Torino, Italy.
| | - Katia Rubini
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy.
| | - Roberto Gobetto
- Department of Chemistry, University of Torino, via P. Giuria 7, 10125 Torino, Italy.
| | - Adriana Bigi
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy.
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Laskus A, Kolmas J. Ionic Substitutions in Non-Apatitic Calcium Phosphates. Int J Mol Sci 2017; 18:E2542. [PMID: 29186932 PMCID: PMC5751145 DOI: 10.3390/ijms18122542] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 11/22/2017] [Accepted: 11/24/2017] [Indexed: 12/25/2022] Open
Abstract
Calcium phosphate materials (CaPs) are similar to inorganic part of human mineralized tissues (i.e., bone, enamel, and dentin). Owing to their high biocompatibility, CaPs, mainly hydroxyapatite (HA), have been investigated for their use in various medical applications. One of the most widely used ways to improve the biological and physicochemical properties of HA is ionic substitution with trace ions. Recent developments in bioceramics have already demonstrated that introducing foreign ions is also possible in other CaPs, such as tricalcium phosphates (amorphous as well as α and β crystalline forms) and brushite. The purpose of this paper is to review recent achievements in the field of non-apatitic CaPs substituted with various ions. Particular attention will be focused on tricalcium phosphates (TCP) and "additives" such as magnesium, zinc, strontium, and silicate ions, all of which have been widely investigated thanks to their important biological role. This review also highlights some of the potential biomedical applications of non-apatitic substituted CaPs.
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Affiliation(s)
- Aleksandra Laskus
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland.
| | - Joanna Kolmas
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy with Laboratory Medicine Division, Medical University of Warsaw, ul. Banacha 1, 02-097 Warsaw, Poland.
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Singh RK, Srivastava M, Prasad NK, Awasthi S, Dhayalan A, Kannan S. Iron doped β-Tricalcium phosphate: Synthesis, characterization, hyperthermia effect, biocompatibility and mechanical evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:715-726. [PMID: 28576042 DOI: 10.1016/j.msec.2017.04.130] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 04/20/2017] [Accepted: 04/21/2017] [Indexed: 01/22/2023]
Abstract
The ability of β-Tricalcium phosphate [β-TCP, β-Ca3(PO4)2] to host iron at its structural lattice and its associated magnetic susceptibility, hyperthermia effect, biocompatibility and mechanical characteristics is investigated. The studies revealed the ability of β-Ca3(PO4)2 to host 5.02mol% of Fe3+ at its Ca2+(5) site. Excess Fe3+ additions led to the formation of trigonal Ca9Fe(PO4)7 and moreover a minor amount of CaFe3(PO4)3O crystallization was also observed. A gradual increment in the iron content at β-Ca3(PO4)2 results in the simultaneous effect of pronounced hyperthermia effect and mechanical stability. However, the presence of CaFe3(PO4)3O contributes for the reduced hyperthermia effect and mechanical stability of iron substituted β-Ca3(PO4)2. Haemolytic tests, cytotoxicity tests and ALP gene expression analysis confirmed the biocompatibility of the investigated systems.
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Affiliation(s)
- Ram Kishore Singh
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India
| | - M Srivastava
- Department of Metallurgical Engineering, Indian Institute of Technology, Banaras Hindu University, India
| | - N K Prasad
- Department of Metallurgical Engineering, Indian Institute of Technology, Banaras Hindu University, India
| | - Sharad Awasthi
- Department of Biotechnology, Pondicherry University, Puducherry 605 014, India
| | - Arunkumar Dhayalan
- Department of Biotechnology, Pondicherry University, Puducherry 605 014, India
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India.
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Nandha Kumar P, Kannan S. Sequential elucidation of the β-Ca 3(PO 4) 2/TiO 2 composite development from the solution precursors. Dalton Trans 2017; 46:3229-3239. [PMID: 28224142 DOI: 10.1039/c7dt00090a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sequential formation of β-Ca3(PO4)2/TiO2 composites with assorted ratios synthesized from the solution precursors is described. The phase evolution of the synthesized powders to yield a composite during progressive heat treatments is determined through a set of analytical techniques. Investigation reveals the initial crystallization of apatite and anatase TiO2 (a-TiO2) mixtures at <800 °C. β-Ca3(PO4)2 crystallizes at ∼800 °C and its subsequent stability is retained until 1300 °C. Besides, a gradual phase transition of a- → rutile TiO2 (r-TiO2) transpires in the range of 800-1000 °C before the complete r-TiO2 transformation accomplishes at 1100 °C. The structural stability of the resultant β-Ca3(PO4)2/r-TiO2 composites is retained until 1300 °C. The β-Ca3(PO4)2 lattice also hosts a selective amount of Ti4+ and as a consequence the anticipated β- → α-Ca3(PO4)2 conversion that occurs at 1180 °C is delayed. TiO2 plays a crucial role in the attainment of dense and pore free microstructures of β-Ca3(PO4)2/r-TiO2 composites. The mechanical properties determined through nanoindentation revealed an upsurge trend as a function of TiO2 content in the composites.
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Affiliation(s)
- P Nandha Kumar
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry-605 014, India.
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry-605 014, India.
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Dorozhkin SV. Calcium orthophosphates (CaPO 4): occurrence and properties. Prog Biomater 2015; 5:9-70. [PMID: 27471662 PMCID: PMC4943586 DOI: 10.1007/s40204-015-0045-z] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 11/05/2015] [Indexed: 01/02/2023] Open
Abstract
The present overview is intended to point the readers' attention to the important subject of calcium orthophosphates (CaPO4). This type of materials is of the special significance for the human beings because they represent the inorganic part of major normal (bones, teeth and antlers) and pathological (i.e., those appearing due to various diseases) calcified tissues of mammals. For example, atherosclerosis results in blood vessel blockage caused by a solid composite of cholesterol with CaPO4, while dental caries and osteoporosis mean a partial decalcification of teeth and bones, respectively, that results in replacement of a less soluble and harder biological apatite by more soluble and softer calcium hydrogenorthophosphates. Therefore, the processes of both normal and pathological calcifications are just an in vivo crystallization of CaPO4. Similarly, dental caries and osteoporosis might be considered as in vivo dissolution of CaPO4. In addition, natural CaPO4 are the major source of phosphorus, which is used to produce agricultural fertilizers, detergents and various phosphorus-containing chemicals. Thus, there is a great significance of CaPO4 for the humankind and, in this paper, an overview on the current knowledge on this subject is provided.
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Vitrification of β-tricalcium phosphate in sodium aluminoborophosphate glass and the effect of Ga3+ substitution. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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