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Boanini E, Pagani S, Gazzano M, Rubini K, Raimondi L, De Luca A, Romanelli A, Giavaresi G, Bigi A. Mn 2+ vs Co 2+ substitution into β-TCP: Structural details and bone cells response. Colloids Surf B Biointerfaces 2024; 243:114154. [PMID: 39137528 DOI: 10.1016/j.colsurfb.2024.114154] [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: 05/29/2024] [Revised: 07/24/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024]
Abstract
This work investigated the range of substitution of two biologically relevant ions, namely Mn2+ and Co2+, into the structure of β-tricalcium phosphate, as well as their influence on bone cells response. To this aim, β-TCP was synthesized by solid state reaction in the presence of increasing amount of the substituent ions. The results of the X-ray diffraction analysis reveal that just limited amounts of these ions can enter into the β-TCP structure: 15 at% and 20 at% for cobalt and manganese, respectively. Substitution provokes aggregation of the micrometric particles and reduction of the lattice constants. In particular, the dimension of the c-parameter exhibits a discontinuity at about 10 at% for both cations, although with different trend. Moreover, Rietveld refinement demonstrates a clear preference of both manganese and cobalt for the octahedral site (V). The influence of these ions on cell response was tested on osteoblast, osteoclast and endothelial cells. The results indicate that the presence of manganese promotes a good osteoblast viability, significantly enhances the expression of osteoblast key genes and the angiogenic process of endothelial cells, while inhibiting osteoclast resorption. At variance, osteoblast viability appears reduced in the presence of Co samples, on which osteoblast genes reach higher expression than on β-TCP just in a few cases. On the other hand, the results clearly show that cobalt significantly stimulates the angiogenic process and inhibits osteoclast resorption.
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Affiliation(s)
- Elisa Boanini
- Department of Chemistry ''Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Bologna 40126, Italy.
| | - Stefania Pagani
- CS-Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Bologna 40136, Italy
| | | | - Katia Rubini
- Department of Chemistry ''Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Bologna 40126, Italy
| | - Lavinia Raimondi
- CS-Surgical Sciences and Technologies-SS Omics Science Platform for Personalized Orthopedics, IRCCS Istituto Ortopedico Rizzoli, Bologna 40136, Italy
| | - Angela De Luca
- CS-Surgical Sciences and Technologies-SS Omics Science Platform for Personalized Orthopedics, IRCCS Istituto Ortopedico Rizzoli, Bologna 40136, Italy
| | - Alessia Romanelli
- CS-Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Bologna 40136, Italy
| | - Gianluca Giavaresi
- CS-Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Bologna 40136, Italy
| | - Adriana Bigi
- Department of Chemistry ''Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Bologna 40126, Italy
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2
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Nunes FC, Santos SIP, Colnago LA, Hammer P, Ferreira JA, Ambrósio CE, Pallone EMJA. Impact of ZrO 2 Content on the Formation of Sr-Enriched Phosphates in Al 2O 3/ZrO 2 Nanocomposites for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1893. [PMID: 38673250 PMCID: PMC11052522 DOI: 10.3390/ma17081893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024]
Abstract
This study investigates the profound impact of the ZrO2 inclusion volume on the characteristics of Al2O3/ZrO2 nanocomposites, particularly influencing the formation of calcium phosphates on the surface. This research, aimed at advancing tissue engineering, prepared nanocomposites with 5, 10, and 15 vol% ZrO2, subjecting them to chemical surface treatment for enhanced calcium phosphate deposition sites. Biomimetic coating with Sr-enriched simulated body fluid (SBF) further enhanced the bioactivity of nanocomposites. While the ZrO2 concentration heightened the oxygen availability on nanocomposite surfaces, the quantity of Sr-containing phosphate was comparatively less influenced than the formation of calcium phosphate phases. Notably, the coated nanocomposites exhibited a high cell viability and no toxicity, signifying their potential in bone tissue engineering. Overall, these findings contribute to the development of regenerative biomaterials, holding promise for enhancing bone regeneration therapies.
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Affiliation(s)
- Fabio Caixeta Nunes
- Postgraduate Programme in Materials Science and Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil;
| | - Sarah Ingrid Pinto Santos
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil; (S.I.P.S.); (C.E.A.)
| | - Luiz Alberto Colnago
- Brazilian Agricultural Research Corporation, EMBRAPA Instrumentation, Rua Quinze de Novembro, 1500/1501, São Carlos 13561-206, SP, Brazil;
| | - Peter Hammer
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara 14800-900, SP, Brazil;
| | - Julieta Adriana Ferreira
- Fundação Hermínio Ometto, Fundação Hermínio Ometto (FHO), Av. Dr. Maximiliano Baruto, 500, Araras 13607-339, SP, Brazil;
| | - Carlos Eduardo Ambrósio
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil; (S.I.P.S.); (C.E.A.)
| | - Eliria Maria Jesus Agnolon Pallone
- Postgraduate Programme in Materials Science and Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil;
- Department of Biosystem Engineering, Faculty of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil
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3
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Molenda M, Kolmas J. The Role of Zinc in Bone Tissue Health and Regeneration-a Review. Biol Trace Elem Res 2023; 201:5640-5651. [PMID: 37002364 PMCID: PMC10620276 DOI: 10.1007/s12011-023-03631-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/11/2023] [Indexed: 04/03/2023]
Abstract
Zinc is a micronutrient of key importance for human health. An increasing number of studies indicate that zinc plays a significant role in bone tissue's normal development and maintaining homeostasis. Zinc is not only a component of bone tissue but is also involved in the synthesis of the collagen matrix, mineralization, and bone turnover. It has been demonstrated that zinc can stimulate runt-related transcription factor 2 (Runx2) and promote the differentiation of osteoblasts. On the other hand, zinc has been found to inhibit osteoclast-like cell formation and to decrease bone resorption by stimulating osteoclasts' apoptosis. Moreover, zinc regulates the RANKL/RANK/OPG pathway, thereby facilitating bone remodeling. To date, not all mechanisms of Zn activity on bone tissue are well understood and documented. The review aimed to present the current state of research on the role of zinc in bone tissue, its beneficial properties, and its effects on bone regeneration. Since calcium phosphates as bone substitute materials are increasingly enriched in zinc ions, the paper included an overview of research on the potential role of such materials in bone filling and regeneration.
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Affiliation(s)
- Magda Molenda
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Ul. Banacha 1, 02-097, Warsaw, Poland
| | - Joanna Kolmas
- Department of Analytical Chemistry and Biomaterials, Faculty of Pharmacy, Medical University of Warsaw, Ul. Banacha 1, 02-097, Warsaw, Poland.
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4
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Li X, Ma Z, Wu C, Zhang M, Wang Y, Zheng G, Zhu M, Li G, Fu F, Hao X. Injectable Self-Harden Antibiofilm Bioceramic Cement for Minimally Invasive Surgery. ACS Biomater Sci Eng 2023; 9:6225-6240. [PMID: 37906514 DOI: 10.1021/acsbiomaterials.3c00822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
There is an urgent demand for antibacterial bone grafts in clinics. Worryingly, the misuse and overuse of antibiotics accelerate the emergence of drug-resistant bacteria. Therefore, this study prepared a novel injectable bioceramic cement without antibiotics (FS-BCS), which showed good antibacterial properties by loading iron and strontium onto a matrix composed of brushite and calcium sulfate. The setting time, injectability, microstructure, antibacterial properties, anti-biofilm properties, and cytocompatibility of the novel bioceramic cement were evaluated thoroughly. The results showed that the material was highly injectable and antiwashout. The antibacterial tests revealed that FS-BCS inhibited the growth of 99.9% E. coli and S. aureus separately in the broth due to the synergistic effect of strontium and iron. Simultaneously, crystal violet and fluorescent staining tests revealed that the material could significantly inhibit the formation of E. coli and S. aureus biofilms. In addition, the co-incorporation of iron and strontium promoted the proliferation and migration of osteoblasts. Therefore, FS-BCS has good application potential in antibiotic-free anti-infection bone grafting using minimally invasive surgery.
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Affiliation(s)
- Xiaofang Li
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Zexu Ma
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Congping Wu
- School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, Sichuan, China
| | - Mei Zhang
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Yitong Wang
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Guangxun Zheng
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Mengxin Zhu
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Guangda Li
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Fangfang Fu
- College of Medical Technology and Engineering, Henan University of Science and Technology, Luo Yang 471023, Henan, China
| | - Xueqin Hao
- College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luo Yang 471023, Henan, China
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Development of a Molasses-Based Medium for Agrobacterium tumefaciens Fermentation for Application in Plant-Based Recombinant Protein Production. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9020149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The Agrobacterium-mediated transient gene expression system is a rapid and efficient method for heterologous recombinant protein expression in plants. The fermentation of genetically modified Agrobacterium tumefaciens is an important step in increasing the efficiency of recombinant protein production in plants. However, the limitation of this system that makes it economically non-competitive for industrial-scale applications is the Agrobacterium suspension production cost. In this study, the utilization of sugarcane molasses as an alternative low-cost source of carbon at a concentration of 8.7 g/L and nitrogen at a concentration of 2.4 g/L for Agrobacterium cultivation was investigated. Molasses pretreatment using sulfuric acid (SA) was applied before fermentation, and it resulted in a maximum specific growth rate of 0.232 ± 0.0063 h−1 in the A. tumefaciens EHA105 culture. The supplementation of antibiotics in the molasses-based medium was shown to be unnecessary for plasmid maintenance during fermentation in both Agrobacterium strains, which helped to reduce the production cost. We evaluated recombinant protein production using an Agrobacterium culture without antibiotic supplementation in the growth media by demonstrating green fluorescent protein expression in wild-type Nicotiana benthamiana leaves. In the evaluation of the culture medium cost, the molasses-based medium cost was 6.1 times lower than that of LB. Finally, this study demonstrated that the newly developed molasses-based medium for Agrobacterium fermentation is a feasible and effective medium for transient recombinant protein production in plant tissues.
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Fadeeva IV, Deyneko DV, Forysenkova AA, Morozov VA, Akhmedova SA, Kirsanova VA, Sviridova IK, Sergeeva NS, Rodionov SA, Udyanskaya IL, Antoniac IV, Rau JV. Strontium Substituted β-Tricalcium Phosphate Ceramics: Physiochemical Properties and Cytocompatibility. Molecules 2022; 27:molecules27186085. [PMID: 36144818 PMCID: PMC9505591 DOI: 10.3390/molecules27186085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/30/2022] Open
Abstract
Sr2+-substituted β-tricalcium phosphate (β-TCP) powders were synthesized using the mechano-chemical activation method with subsequent pressing and sintering to obtain ceramics. The concentration of Sr2+ in the samples was 0 (non-substituted TCP, as a reference), 3.33 (0.1SrTCP), and 16.67 (0.5SrTCP) mol.% with the expected Ca3(PO4)2, Ca2.9Sr0.1(PO4)2, and Ca2.5Sr0.5(PO4)2 formulas, respectively. The chemical compositions were confirmed by the energy-dispersive X-ray spectrometry (EDX) and the inductively coupled plasma optical emission spectroscopy (ICP-OES) methods. The study of the phase composition of the synthesized powders and ceramics by the powder X-ray diffraction (PXRD) method revealed that β-TCP is the main phase in all compounds except 0.1SrTCP, in which the apatite (Ap)-type phase was predominant. TCP and 0.5SrTCP ceramics were soaked in the standard saline solution for 21 days, and the phase analysis revealed the partial dissolution of the initial β-TCP phase with the formation of the Ap-type phase and changes in the microstructure of the ceramics. The Sr2+ ion release from the ceramic was measured by the ICP-OES. The human osteosarcoma MG-63 cell line was used for viability, adhesion, spreading, and cytocompatibility studies. The results show that the introduction of Sr2+ ions into the β-TCP improved cell adhesion, proliferation, and cytocompatibility of the prepared samples. The obtained results provide a base for the application of the Sr2+-substituted ceramics in model experiments in vivo.
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Affiliation(s)
- Inna V. Fadeeva
- A.A. Baikov Institute of Metallurgy and Material Science RAS, Leninskie, 49, 119334 Moscow, Russia
| | - Dina V. Deyneko
- Department of Chemistry, Lomonosov Moscow State University, 1, Leninskie Gory, 119991 Moscow, Russia
- Laboratory of Arctic Mineralogy and Material Sciences, Kola Science Centre, Russian Academy of Sciences, 14 Fersman Str., 184209 Apatity, Russia
| | - Anna A. Forysenkova
- A.A. Baikov Institute of Metallurgy and Material Science RAS, Leninskie, 49, 119334 Moscow, Russia
| | - Vladimir A. Morozov
- Department of Chemistry, Lomonosov Moscow State University, 1, Leninskie Gory, 119991 Moscow, Russia
| | - Suraya A. Akhmedova
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
| | - Valentina A. Kirsanova
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
| | - Irina K. Sviridova
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
| | - Natalia S. Sergeeva
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
- Academician Yarygin Department of Biology, Federal State Autonomous Educational Institution of Higher Education Russian National Research Medical University Named after N.I. Pirogov, Str. Ostrovityanova, 1, 117997 Moscow, Russia
| | - Sergey A. Rodionov
- Herzen Moscow Research Institute of Oncology—Branch of the Federal State Budgetary Institutio, National Medical Research Center for Radiology of the Ministry of Health of Russia, 2nd Botkinsky Pr-d, 3, 125284 Moscow, Russia
- N.N. Priorov National Medical Research Center of Traumatology and Orthopaedics, 10 Priorova Str., 127299 Moscow, Russia
| | - Irina L. Udyanskaya
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, 119991 Moscow, Russia
| | - Iulian V. Antoniac
- Department of Metallic Materials Science and Physical Metallurg, University Politehnica of Bucharest, Street Splaiul Independentei No 313, Sector 6, 060042 Bucharest, Romania
| | - Julietta V. Rau
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, 119991 Moscow, Russia
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere, 100-00133 Rome, Italy
- Correspondence:
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Besleaga C, Nan B, Popa AC, Balescu LM, Nedelcu L, Neto AS, Pasuk I, Leonat L, Popescu-Pelin G, Ferreira JMF, Stan GE. Sr and Mg Doped Bi-Phasic Calcium Phosphate Macroporous Bone Graft Substitutes Fabricated by Robocasting: A Structural and Cytocompatibility Assessment. J Funct Biomater 2022; 13:jfb13030123. [PMID: 36135559 PMCID: PMC9502687 DOI: 10.3390/jfb13030123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 11/29/2022] Open
Abstract
Bi-phasic calcium phosphates (BCPs) are considered prominent candidate materials for the fabrication of bone graft substitutes. Currently, supplemental cation-doping is suggested as a powerful path to boost biofunctionality, however, there is still a lack of knowledge on the structural role of such substituents in BCPs, which in turn, could influence the intensity and extent of the biological effects. In this work, pure and Mg- and Sr-doped BCP scaffolds were fabricated by robocasting from hydrothermally synthesized powders, and then preliminarily tested in vitro and thoroughly investigated physically and chemically. Collectively, the osteoblast cell culture assays indicated that all types of BCP scaffolds (pure, Sr- or Sr–Mg-doped) delivered in vitro performances similar to the biological control, with emphasis on the Sr–Mg-doped ones. An important result was that double Mg–Sr doping obtained the ceramic with the highest β-tricalcium phosphate (β-TCP)/hydroxyapatite mass concentration ratio of ~1.8. Remarkably, Mg and Sr were found to be predominantly incorporated in the β-TCP lattice. These findings could be important for the future development of BCP-based bone graft substitutes since the higher dissolution rate of β-TCP enables an easier release of the therapeutic ions. This may pave the road toward medical devices with more predictable in vivo performance.
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Affiliation(s)
- Cristina Besleaga
- National Institute of Materials Physics, RO-077125 Magurele, Romania
| | - Bo Nan
- Department of Materials and Ceramics Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | | | - Liviu Nedelcu
- National Institute of Materials Physics, RO-077125 Magurele, Romania
| | - Ana Sofia Neto
- Department of Materials and Ceramics Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Iuliana Pasuk
- National Institute of Materials Physics, RO-077125 Magurele, Romania
| | - Lucia Leonat
- National Institute of Materials Physics, RO-077125 Magurele, Romania
| | - Gianina Popescu-Pelin
- National Institute for Lasers, Plasma and Radiation Physics, RO-077125 Magurele, Romania
| | - José M. F. Ferreira
- Department of Materials and Ceramics Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (J.M.F.F.); (G.E.S.)
| | - George E. Stan
- National Institute of Materials Physics, RO-077125 Magurele, Romania
- Correspondence: (J.M.F.F.); (G.E.S.)
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Nik Md Noordin Kahar NNF, Ahmad N, Mariatti M, Yahaya BH, Sulaiman AR, Abdul Hamid ZA. A review on bioceramics scaffolds for bone defect in different types of animal models: HA and β -TCP. Biomed Phys Eng Express 2022; 8. [PMID: 35921834 DOI: 10.1088/2057-1976/ac867f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 08/03/2022] [Indexed: 11/12/2022]
Abstract
Increased life expectancy has led to an increase in the use of bone substitutes in numerous nations, with over two million bone-grafting surgeries performed worldwide each year. A bone defect can be caused by trauma, infections, and tissue resections which can self-heal due to the osteoconductive nature of the native extracellular matrix components. However, natural self-healing is time-consuming, and new bone regeneration is slow, especially for large bone defects. It also remains a clinical challenge for surgeons to have a suitable bone substitute. To date, there are numerous potential treatments for bone grafting, including gold-standard autografts, allograft implantation, xenografts, or bone graft substitutes. Tricalcium phosphate (TCP) and hydroxyapatite (HA) are the most extensively used and studied bone substitutes due to their similar chemical composition to bone. The scaffolds should be testedin vivoandin vitrousing suitable animal models to ensure that the biomaterials work effectively as implants. Hence, this article aims to familiarize readers with the most frequently used animal models for biomaterials testing and highlight the available literature for in vivo studies using small and large animal models. This review summarizes the bio ceramic materials, particularly HA and β-TCP scaffolds, for bone defects in small and large animal models. Besides, the design considerations for the pre-clinical animal model selection for bone defect implants are emphasized and presented.
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Affiliation(s)
- Nik Nur Farisha Nik Md Noordin Kahar
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia - Kampus Kejuruteraan Seri Ampangan, Transkrian, Nibong Tebal, Seberang Perai Selatan, Nibong Tebal, Pulau Pinang, 14300, MALAYSIA
| | - Nurazreena Ahmad
- Biomaterials Niche Group, School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia - Kampus Kejuruteraan Seri Ampangan, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300 Penang, Malaysia, Nibong Tebal, Pulau Pinang, 14300, MALAYSIA
| | - M Mariatti
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia - Kampus Kejuruteraan Seri Ampangan, Engineering Campus, Universiti Sains Malaysia, 14300 NibongTebal,, Nibong Tebal, Pulau Pinang, 14300, MALAYSIA
| | - Badrul Hisham Yahaya
- Cluster of Regenerative Medicine, Universiti Sains Malaysia Institut Perubatan dan Pengigian Termaju, Bertam, Kepala Batas, Pulau Pinang, 13200, MALAYSIA
| | - Abdul Razak Sulaiman
- Department of Orthopaedics, School of Medical Science, Universiti Sains Malaysia - Kampus Kesihatan, 16150, Kota Bharu, Kelantan, MALAYSIA, Kubang Kerian, Kelantan, 16150, MALAYSIA
| | - Zuratul Ain Abdul Hamid
- School of Materials & Mineral Resources Engineering, Universiti Sains Malayisa, Universiti Sains Malaysia - Engineering Campus Seri Ampangan, Universiti Sains Malaysia, Engineering Campus, Universiti Sains Malaysia, Engineering Campus, Nibong Tebal, 14300, MALAYSIA
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9
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Mosina M, Kovrlija I, Stipniece L, Locs J. Gallium containing calcium phosphates: potential antibacterial agents or fictitious truth. Acta Biomater 2022; 150:48-57. [PMID: 35933101 DOI: 10.1016/j.actbio.2022.07.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/30/2022] [Accepted: 07/29/2022] [Indexed: 02/08/2023]
Abstract
Amidst an ever-increasing demand for the enhancement of the lifestyle and the modulation of modern diseases, the functionalization of biomaterials is of utmost importance. One of the leading materials for the aforementioned purpose have been calcium phosphates (CaPs). They have been widely used in bone regeneration displaying favourable regenerative potential and biological properties. Many studies have placed their entire focus on facilitating the osteogenic differentiation of stem cells and bone progenitor cells, while the aspect of antibacterial properties has been surmounted. Nevertheless, increasing antibiotic resistance of bacteria requires the development of new materials and the usage of alternative approaches such as ion doping. Gallium (Ga) has been the potential star on the rise among the ions. However, the obstacle that accompanies gallium is the scarcity of research performed and the variety of amalgamations. The question that imposes itself is how a growing field of therapeutics can be further entwined with advances in material science, and how will the incorporation of gallium bring a new outlook. The present study offers a comprehensive overview of state-of-the-art gallium containing calcium phosphates (GaCaPs), their synthesis methods, antibacterial properties, and biocompatibility. Considering their vast potential as antibacterial agents, the need for a methodical perspective is highly necessary to determine if it is a direction on the brink of recognition or a fruitless endeavour. STATEMENT OF SIGNIFICANCE: : Although several studies have been published on various metal ions-containing calcium phosphates, to this date there is no systematic overview pointing out the properties and benefits of gallium containing calcium phosphates. Here we offer a critical overview, including synthesis, structure and biological properties of gallium containing calcium phosphates.
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Affiliation(s)
- Marika Mosina
- Rudolfs Cimdins Riga Biomaterials Innovation and Development Centre, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, Riga, LV-1007, Latvia; Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Riga, Latvia.
| | - Ilijana Kovrlija
- Rudolfs Cimdins Riga Biomaterials Innovation and Development Centre, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, Riga, LV-1007, Latvia.
| | - Liga Stipniece
- Rudolfs Cimdins Riga Biomaterials Innovation and Development Centre, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, Riga, LV-1007, Latvia; Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Riga, Latvia.
| | - Janis Locs
- Rudolfs Cimdins Riga Biomaterials Innovation and Development Centre, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka 3, Riga, LV-1007, Latvia; Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Riga, Latvia.
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10
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Simultaneous Substitution of Fe and Sr in Beta-Tricalcium Phosphate: Synthesis, Structural, Magnetic, Degradation, and Cell Adhesion Properties. MATERIALS 2022; 15:ma15134702. [PMID: 35806825 PMCID: PMC9268321 DOI: 10.3390/ma15134702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/22/2022] [Accepted: 07/01/2022] [Indexed: 12/03/2022]
Abstract
β-tricalcium phosphate is a promising bone graft substitute material with biocompatibility and high osteoinductivity. However, research on the ideal degradation and absorption for better clinical application remains a challenge. Now, we focus on modifying physicochemical properties and improving biological properties through essential ion co-substitution (Fe and Sr) in β-TCPs. Fe- and Sr-substituted and Fe/Sr co-substituted β-TCP were synthesized by aqueous co-precipitation with substitution levels ranging from 0.2 to 1.0 mol%. The β-TCP phase was detected by X-ray diffraction and Fourier transform infrared spectroscopy. Changes in Ca–O and P–O bond lengths of the co-substituted samples were observed through X-ray photoelectron spectroscopy. The results of VSM represent the M-H graph having a combination of diamagnetic and ferromagnetic properties. A TRIS–HCl solution immersion test showed that the degradation and resorption functions act synergistically on the surface of the co-substituted sample. Cell adhesion tests demonstrated that Fe enhances the initial adhesion and proliferation behavior of hDPSCs. The present work suggests that Fe and Sr co-substitution in β-TCP can be a candidate for promising bone graft materials in tissue engineering fields. In addition, the possibility of application of hyperthermia for cancer treatment can be expected.
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Physicochemical and Biological Evaluation of Chitosan-Coated Magnesium-Doped Hydroxyapatite Composite Layers Obtained by Vacuum Deposition. COATINGS 2022. [DOI: 10.3390/coatings12050702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the present work, the effectiveness of vacuum deposition technique for obtaining composite thin films based on chitosan-coated magnesium-doped hydroxyapatite Ca10−xMgx(PO4)6 (OH)2 with xMg = 0.025 (MgHApCh) was proved for the first time. The prepared samples were exposed to three doses (0, 3, and 6 Gy) of gamma irradiation. The MgHApCh composite thin films nonirradiated and irradiated were evaluated by scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS) studies. The biological evaluation of the samples was also presented. All the results obtained from this study showed that the vacuum deposition method allowed for obtaining uniform and homogeneous layers. Fine cracks were observed on the MgHApCh composite thin films’ surface after exposure to a 6 Gy irradiation dose. Additionally, after gamma irradiation, a decrease in Ca, P, and Mg content was noticed. The MgHApCh composite thin films with doses of 0 and 3 Gy of gamma irradiation showed a cellular viability similar to that of the control. Samples with 6 Gy doses of gamma irradiation did not cause significantly higher fibroblast cell death than the control (p > 0.05). On the other hand, the homogeneous distribution of pores that appeared on the surface of coatings after 6 Gy doses of gamma irradiation did not prevent the adhesion of fibroblast cells and their spread on the coatings. In conclusion, we could say that the thin films could be suitable both for use in bone implants and for other orthopedic and dentistry applications.
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Alshuiael SM, Al-Ghouti MA. Development of a novel tailored ion-imprinted polymer for recovery of lithium and strontium from reverse osmosis concentrated brine. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Rahimi Mosafer HS, Paszkowicz W, Minikayev R, Kozłowski M, Diduszko R, Berkowski M. The crystal structure and thermal expansion of novel substitutionally disordered Ca 10TM 0.5(VO 4) 7 (TM = Co, Cu) orthovanadates. Dalton Trans 2021; 50:14762-14773. [PMID: 34590656 DOI: 10.1039/d1dt02446a] [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
The whitlockite-related materials have attracted researchers' attention because of their potential application in various fields, especially in optoelectronics. In the present work, the structure of novel whitlockite-related oxides Ca10TM0.5(VO4)7 (TM = Co, Cu) is studied at room and high temperatures, using X-ray powder diffraction. These compounds form by fractional substitution of divalent transition metal atoms into the Ca3(VO4)2 lattice. Rietveld refinements provided the structural details. The lattice parameters are a = 10.78074(6) Å, c = 37.8196(2) Å, and V = 3806.67(4) Å3 for Ca10Co0.5(VO4)7 and a = 10.78710(7) Å, c = 37.8997(3) Å, and V = 3819.23(4) Å3 for Ca10Cu0.5(VO4)7. Structure refinement results show that among the five available sites (M1-M5), the M2+ ions select the M5 site. This finding is confirmed by analysis of interatomic distances: due to the difference in size between TM and Ca ions sharing the M5 site, the M5-O distance shortens by about 5.0% for Ca10Co0.5(VO4)7 and 2.7% for Ca10Cu0.5(VO4)7 with respect to the unsubstituted parent compound, Ca3(VO4)2. The observed trends in the crystallographic properties of the studied crystals are in line with those of previously reported structurally related phosphates, Ca10.5-xMx(PO4)7 (M = Mg or divalent transition metal). Moreover, the observed tendency for occupation of M5 by small divalent ions follows the earlier theoretical results. For cobalt and copper substituted orthovanadate and orthophosphate whitlockite related materials, a linear variation in the unit cell size is demonstrated. The common equation for evaluation of volume is applicable to the substitution of the two transition metals in orthovanadate and orthophosphate whitlockite related materials. Thermal expansion is investigated for both compounds. The variations of the lattice parameters and the thermal expansion coefficient with temperature are determined in the 300-810 K range. The lattice parameter, a, expands by 0.80% for Ca10Co0.5(VO4)7 and 0.74% for Ca10Cu0.5(VO4)7 in this range. The lattice parameter, c, enlarges by about 0.70% for both samples. In the studied temperature range, the volume thermal expansion coefficient of Ca10Co0.5(VO4)7 increases from 37.2 to 44.8 MK-1 and for Ca10Cu0.5(VO4)7, it increases from 35.1 to 45.2 MK-1; the observed expansion anisotropy is smaller than those of other related compounds.
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Affiliation(s)
| | | | - Roman Minikayev
- Institute of Physics, Polish Academy of Sciences, Warsaw, Poland.
| | | | - Ryszard Diduszko
- Institute of Physics, Polish Academy of Sciences, Warsaw, Poland.
| | - Marek Berkowski
- Institute of Physics, Polish Academy of Sciences, Warsaw, Poland.
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14
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Ballouze R, Marahat MH, Mohamad S, Saidin NA, Kasim SR, Ooi JP. Biocompatible magnesium-doped biphasic calcium phosphate for bone regeneration. J Biomed Mater Res B Appl Biomater 2021; 109:1426-1435. [PMID: 33484103 DOI: 10.1002/jbm.b.34802] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 12/29/2020] [Accepted: 01/09/2021] [Indexed: 11/12/2022]
Abstract
Autologous bone grafting remains the gold standard for almost all bone void-filling orthopedic surgery. However, autologous bone grafting has several limitations, thus scientists are trying to identify an ideal synthetic material as an alternative bone graft substitute. Magnesium-doped biphasic calcium phosphate (Mg-BCP) has recently been in the spotlight and is considered to be a potential bone substitute. The Mg-BCP is a mixture of two bioceramics, that is, hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP), doped with Mg2+ , and can be synthesized through chemical wet-precipitation, sol-gel, single diffusion gel, and solid state reactions. Regardless of the synthesis routes, it is found that the Mg2+ preferentially accommodates in β-TCP lattice instead of the HA lattice. The addition of Mg2+ to BCP leads to desirable physicochemical properties and is found to enhance the apatite-forming ability as compared to pristine BCP. In vitro results suggest that the Mg-BCP is bioactive and not toxic to cells. Implantation of Mg-BCP in in vivo models further affirmed its biocompatibility and efficacy as a bone substitute. However, like the other bioceramics, the optimum physicochemical properties of the Mg-BCP scaffold have yet to be determined. Further investigations are required regarding Mg-BCP applications in bone tissue engineering.
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Affiliation(s)
- Rama Ballouze
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
| | - Muhammad Hanif Marahat
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Malaysia
| | - Sharlina Mohamad
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
| | - Nor Aini Saidin
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
| | - Shah Rizal Kasim
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Malaysia
| | - Jer Ping Ooi
- Integrative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Malaysia
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15
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Fadeeva IV, Goldberg MA, Preobrazhensky II, Mamin GV, Davidova GA, Agafonova NV, Fosca M, Russo F, Barinov SM, Cavalu S, Rau JV. Improved cytocompatibility and antibacterial properties of zinc-substituted brushite bone cement based on β-tricalcium phosphate. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:99. [PMID: 34406523 PMCID: PMC8373736 DOI: 10.1007/s10856-021-06575-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/09/2021] [Indexed: 05/11/2023]
Abstract
For bone replacement materials, osteoconductive, osteoinductive, and osteogenic properties are desired. The bacterial resistance and the need for new antibacterial strategies stand among the most challenging tasks of the modern medicine. In this work, brushite cements based on powders of Zinc (Zn) (1.4 wt%) substituted tricalcium phosphate (β-TCP) and non-substituted β-TCP were prepared and investigated. Their initial and final phase composition, time of setting, morphology, pH evolution, and compressive strength are reported. After soaking for 60 days in physiological solution, the cements transformed into a mixture of brushite and hydroxyapatite. Antibacterial activity of the cements against Enterococcus faecium, Escherichia coli, and Pseudomonas aeruginosa bacteria strains was attested. The absence of cytotoxicity of cements was proved for murine fibroblast NCTC L929 cells. Moreover, the cell viability on the β-TCP cement containing Zn2+ ions was 10% higher compared to the β-TCP cement without zinc. The developed cements are perspective for applications in orthopedics and traumatology.
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Affiliation(s)
- Inna V Fadeeva
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky pr. 49, Moscow, Russian Federation, 119334
| | - Margarita A Goldberg
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky pr. 49, Moscow, Russian Federation, 119334
| | - Ilya I Preobrazhensky
- Department of Materials Science, M.V. Lomonosov Moscow State University, Leninskie Gory 1, Moscow, Russian Federation, 119991
| | - Georgy V Mamin
- Kazan Federal University, Kremlevskaya 18, Kazan, Russian Federation, 420008
| | - Galina A Davidova
- Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow, Russian Federation, 142290
| | - Nadezhda V Agafonova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Federal Research Center "Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences", pr. Nauki, 5, Pushchino, Moscow Region, Russian Federation, 142290
| | - Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133, Rome, Italy
| | - Fabrizio Russo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo 200, 00128, Rome, Italy
| | - Sergey M Barinov
- A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninsky pr. 49, Moscow, Russian Federation, 119334
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410073, Oradea, Romania
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133, Rome, Italy.
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, build. 2, Moscow, Russian Federation, 119991.
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Kean Ping L, Mohamed MA, Kumar Mondal A, Mohamad Taib MF, Samat MH, Berhanuddin DD, Menon PS, Bahru R. First-Principles Studies for Electronic Structure and Optical Properties of Strontium Doped β-Ga 2O 3. MICROMACHINES 2021; 12:mi12040348. [PMID: 33804978 PMCID: PMC8063963 DOI: 10.3390/mi12040348] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/22/2021] [Accepted: 03/22/2021] [Indexed: 01/18/2023]
Abstract
The crystal structure, electron charge density, band structure, density of states, and optical properties of pure and strontium (Sr)-doped β-Ga2O3 were studied using the first-principles calculation based on the density functional theory (DFT) within the generalized-gradient approximation (GGA) with the Perdew–Burke–Ernzerhof (PBE). The reason for choosing strontium as a dopant is due to its p-type doping behavior, which is expected to boost the material’s electrical and optical properties and maximize the devices’ efficiency. The structural parameter for pure β-Ga2O3 crystal structure is in the monoclinic space group (C2/m), which shows good agreement with the previous studies from experimental work. Bandgap energy from both pure and Sr-doped β-Ga2O3 is lower than the experimental bandgap value due to the limitation of DFT, which will ignore the calculation of exchange-correlation potential. To counterbalance the current incompatibilities, the better way to complete the theoretical calculations is to refine the theoretical predictions using the scissor operator’s working principle, according to literature published in the past and present. Therefore, the scissor operator was used to overcome the limitation of DFT. The density of states (DOS) shows the hybridization state of Ga 3d, O 2p, and Sr 5s orbital. The bonding population analysis exhibits the bonding characteristics for both pure and Sr-doped β-Ga2O3. The calculated optical properties for the absorption coefficient in Sr doping causes red-shift of the absorption spectrum, thus, strengthening visible light absorption. The reflectivity, refractive index, dielectric function, and loss function were obtained to understand further this novel work on Sr-doped β-Ga2O3 from the first-principles calculation.
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Affiliation(s)
- Loh Kean Ping
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia; (L.K.P.); (A.K.M.); (D.D.B.); (P.S.M.); (R.B.)
| | - Mohd Ambri Mohamed
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia; (L.K.P.); (A.K.M.); (D.D.B.); (P.S.M.); (R.B.)
- Correspondence: ; Tel.: +60-3-8911-8558
| | - Abhay Kumar Mondal
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia; (L.K.P.); (A.K.M.); (D.D.B.); (P.S.M.); (R.B.)
| | - Mohamad Fariz Mohamad Taib
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Selangor, Malaysia; (M.F.M.T.); (M.H.S.)
| | - Mohd Hazrie Samat
- Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Selangor, Malaysia; (M.F.M.T.); (M.H.S.)
- Ionic Materials & Devices (iMADE) Research Laboratory, Institute of Science, Universiti Teknologi MARA (UiTM), Shah Alam 40450, Selangor, Malaysia
| | - Dilla Duryha Berhanuddin
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia; (L.K.P.); (A.K.M.); (D.D.B.); (P.S.M.); (R.B.)
| | - P. Susthitha Menon
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia; (L.K.P.); (A.K.M.); (D.D.B.); (P.S.M.); (R.B.)
| | - Raihana Bahru
- Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia; (L.K.P.); (A.K.M.); (D.D.B.); (P.S.M.); (R.B.)
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17
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Le Gars Santoni B, Niggli L, Sblendorio G, Alexander D, Stähli C, Bowen P, Döbelin N, Bohner M. Chemically pure β-tricalcium phosphate powders: Evidence of two crystal structures. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2020.09.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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18
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Wu K, Chen YC, Lin SM, Chang CH. In vitro and in vivo effectiveness of a novel injectable calcitonin-loaded collagen/ceramic bone substitute. J Biomater Appl 2021; 35:1355-1365. [PMID: 33522363 DOI: 10.1177/0885328221989984] [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: 01/05/2023]
Abstract
This study aimed to evaluate the effectiveness of a novel calcitonin-loaded calcium phosphate composite bone cement in vitro and in vivo. The novel composite bone cements were composed of NuROs injectable bone graft substitute, type I collagen, and/or salmon calcitonin. The setting time, porosity, wettability, compressive strength, compressive modulus, and crystallographic structures of cement specimens were determined. Degradation rate, calcitonin release rate, and osteoinductivity were assessed in vitro. In addition, osteogenic effect was examined in a rabbit model of femoral defect. The results revealed that addition of collagen/calcitonin did not substantially alter physical properties and degradation rate of bone cement specimens. Calcitonin was released into culture medium in a two-phase manner. Osteogenic effect of conditioned medium derived from calcitonin containing bone cement was observed. Finally, de novo bone growth and bone mineralization across the bone defect area were observed in rabbits after implantation of composite bone cement specimens. In conclusion, this novel calcitonin-loaded composite calcium phosphate bone cement exhibits biocompatibility, bioresorbability, osteoinductivity, and osteoconductivity, which may be suitable for clinical use.
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Affiliation(s)
- Karl Wu
- Department of Orthopedic Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Department of Materials and Textiles, Oriental Institute of Technology, New Taipei City, Taiwan
| | - Yu-Chun Chen
- Department of Orthopedic Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,College of General Studies, Yuan Ze University, Taoyuan City, Taiwan
| | - Shang M Lin
- Department of Materials and Textiles, Oriental Institute of Technology, New Taipei City, Taiwan
| | - Chih-Hung Chang
- Department of Orthopedic Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Taoyuan City, Taiwan
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Sun H, Mohammed AN, Liu Y. Phosphorus recovery from source-diverted blackwater through struvite precipitation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140747. [PMID: 32663687 DOI: 10.1016/j.scitotenv.2020.140747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/02/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
Phosphorus recovery from wastewater through struvite precipitation is becoming a promising strategy to both mitigate eutrophication risk due to excess phosphorus discharge into water bodies and alleviate the global phosphorus crisis by producing value-added fertilizer. However, the composition and quality of wastewater differ among regions and home to home. Source-diverted blackwater, especially concentrated blackwater collected from vacuum toilet systems, typically has a moderate phosphate-phosphorus (PO4-P) content, high ammonia-nitrogen (NH4-N) content, strong buffering capacity as a result of high alkalinity, and a high pH close to 9. Thus, concentrated blackwater is a good source for phosphorus recovery through struvite precipitation. In this study, we examined the feasibility of recovering phosphorus from concentrated blackwater through struvite precipitation by conducting batch experiments. The characterization of the struvite produced from concentrated blackwater was performed via X-ray diffraction (XRD) and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS) techniques. The metal contents of the struvite product were analyzed by inductively coupled plasma mass spectrometry (ICP-MS), and its purity was determined. A phosphorus removal efficiency exceeding 90% was achieved as a result of both an appropriate supersaturation ratio of struvite (>4.0) and a high initial pH. The high quality of the produced struvite was demonstrated by a purity of 94.9%, the Mg/P/N mass ratio of 10:12:4.7 based on the EDS analysis, and low heavy-metals contents. This feasibility study provides evidence for the efficacy of phosphorus recovery from concentrated blackwater through struvite precipitation in decentralized wastewater management systems.
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Affiliation(s)
- Huijuan Sun
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Abdul Nayeem Mohammed
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada; EPCOR Water Utilities, Inc., Edmonton, Canada
| | - Yang Liu
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
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Bohner M, Santoni BLG, Döbelin N. β-tricalcium phosphate for bone substitution: Synthesis and properties. Acta Biomater 2020; 113:23-41. [PMID: 32565369 DOI: 10.1016/j.actbio.2020.06.022] [Citation(s) in RCA: 224] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/21/2020] [Accepted: 06/12/2020] [Indexed: 12/17/2022]
Abstract
β-tricalcium phosphate (β-TCP) is one the most used and potent synthetic bone graft substitute. It is not only osteoconductive, but also osteoinductive. These properties, combined with its cell-mediated resorption, allow full bone defects regeneration. Its clinical outcome is sometimes considered to be "unpredictable", possibly due to a poor understanding of β-TCP physico-chemical properties: β-TCP crystallographic structure is not fully uncovered; recent results suggest that sintered β-TCP is coated with a Ca-rich alkaline phase; β-TCP apatite-forming ability and osteoinductivity may be enhanced by a hydrothermal treatment; β-TCP grain size and porosity are strongly modified by the presence of minute amounts of β-calcium pyrophosphate or hydroxyapatite impurities. The aim of the present article is to provide a critical, but still rather comprehensive review of the current state of knowledge on β-TCP, with a strong focus on its synthesis and physico-chemical properties, and their link to the in vivo response. STATEMENT OF SIGNIFICANCE: The present review documents the richness, breadth, and interest of the research devoted to β-tricalcium phosphate (β-TCP). β-TCP is synthetic, osteoconductive, osteoinductive, and its resorption is cell-mediated, thus making it one of the most potent bone graft substitutes. This comprehensive review reveals that there are a number of aspects, such as surface chemistry, crystallography, or stoichiometry deviations, that are still poorly understood. As such, β-TCP is still an exciting scientific playground despite a 50 year long history and > 200 yearly publications.
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21
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Gokcekaya O, Ueda K, Narushima T, Nakano T. Using HAADF-STEM for atomic-scale evaluation of incorporation of antibacterial Ag atoms in a β-tricalcium phosphate structure. NANOSCALE 2020; 12:16596-16604. [PMID: 32756641 DOI: 10.1039/d0nr04208k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Structural evaluation of ionic additions in calcium phosphates that enhance their performance is a long-lasting area of research in the field of biomedical materials. Ionic incorporation in β-tricalcium phosphate (β-TCP) structures is indispensable for obtaining desirable properties for specific functions and applications. Owing to its complex structure and beam-sensitive nature, determining the extent of ion incorporation and its corresponding location in the β-TCP structure is challenging. Further, very few experimental studies have been able to estimate the location of Ag atoms incorporated in a β-TCP structure while considering the associated changes in lattice parameters. Although the incorporation alters the lattice parameters, the alteration is not significant enough for estimating the location of the incorporated Ag atoms. Here, Ag incorporation in a β-TCP structure was evaluated on atomic scale using scanning transmission electron microscopy (STEM). To the best of our knowledge, this is the first report to unambiguously determine the location of the incorporated Ag atoms in the β-TCP structure by comparing z-contrast profiles of the Ag and Ca atoms by combining the state-of-art STEM observations and STEM image simulations. The Ag incorporation in the Ca(4) sites of β-TCP, as estimated by the Rietveld refinement, was in good agreement with the high-angle annular dark-field STEM observations and the simulations of the location of Ag atoms for [001] and [010] zone axes.
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Affiliation(s)
- Ozkan Gokcekaya
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Dorozhkin SV. Functionalized calcium orthophosphates (CaPO 4) and their biomedical applications. J Mater Chem B 2019; 7:7471-7489. [PMID: 31738354 DOI: 10.1039/c9tb01976f] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Due to the chemical similarity to natural calcified tissues (bones and teeth) of mammals, calcium orthophosphates (abbreviated as CaPO4) appear to be good biomaterials for creation of artificial bone grafts. However, CaPO4 alone have some restrictions, which limit their biomedical applications. Various ways have been developed to improve the properties of CaPO4 and their functionalization is one of them. Namely, since surfaces always form the interfaces between implanted grafts and surrounding tissues, the state of CaPO4 surfaces plays a crucial role in the survival of bone grafts. Although the biomedically relevant CaPO4 possess the required biocompatible properties, some of their properties could be better. For example, functionalization of CaPO4 to enhance cell attachment and cell material interactions has been developed. In addition, to prepare stable formulations from nanodimensional CaPO4 particles and prevent them from agglomerating, the surfaces of CaPO4 particles are often functionalized by sorption of special chemicals. Furthermore, there are functionalizations in which CaPO4 are exposed to various types of physical treatments. This review summarizes the available knowledge on CaPO4 functionalizations and their biomedical applications.
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