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Zupanič Pajnič I, Kovačič N. DNA preservation in compact and trabecular bone. Forensic Sci Int Genet 2024; 71:103067. [PMID: 38833778 DOI: 10.1016/j.fsigen.2024.103067] [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] [Received: 11/28/2023] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/06/2024]
Abstract
Significant variation exists in the molecular structure of compact and trabecular bone. In compact bone full dissolution of the bone powder is required to efficiently release the DNA from hydroxyapatite. In trabecular bone where soft tissues are preserved, we assume that full dissolution of the bone powder is not required to release the DNA from collagen. To investigate this issue, research was performed on 45 Second World War diaphysis (compact bone)-epiphysis (trabecular bone) femur pairs, each processed with a full dissolution (FD) and partial dissolution (PD) extraction method. DNA quality and quantity were assessed using qPCR PowerQuant analyses, and autosomal STRs were typed to confirm the authenticity of isolated DNA. Our results support different mechanisms of DNA preservation in compact and trabecular bone because FD method was more efficient than PD method only in compact bone, and no difference in DNA yield was observed in trabecular bone, showing no need for full dissolution of the bone powder when trabecular bone tissue is processed. In addition, a significant difference in DNA yield was observed between compact and trabecular bone when PD was applied, with more DNA extracted from trabecular bone than compact bone. High suitability of trabecular bone processed with PD method is also supported by the similar quantities of DNA isolated by FD method when applied to both compact and trabecular bone. Additionally similar quantities of DNA were isolated when compact bone was extracted with FD method and trabecular bone was extracted with PD method. Processing trabecular bone with PD method in routine identification of skeletonized human remains shortens the extraction procedure and simplifies the grinding process.
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Affiliation(s)
- Irena Zupanič Pajnič
- Institute of Forensic Medicine, Faculty of Medicine, University of Ljubljana, Korytkova 2, Ljubljana 1000, Slovenia.
| | - Nika Kovačič
- Institute of Forensic Medicine, Faculty of Medicine, University of Ljubljana, Korytkova 2, Ljubljana 1000, Slovenia
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2
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Kimura R, Noda D, Liu Z, Shi W, Akutsu R, Tagaya M. Biological Surface Layer Formation on Bioceramic Particles for Protein Adsorption. Biomimetics (Basel) 2024; 9:347. [PMID: 38921227 PMCID: PMC11201679 DOI: 10.3390/biomimetics9060347] [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: 05/13/2024] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
In the biomedical fields of bone regenerative therapy, the immobilization of proteins on the bioceramic particles to maintain their highly ordered structures is significantly important. In this review, we comprehensively discussed the importance of the specific surface layer, which can be called "non-apatitic layer", affecting the immobilization of proteins on particles such as hydroxyapatite and amorphous silica. It was suggested that the water molecules and ions contained in the non-apatitic layer can determine and control the protein immobilization states. In amorphous silica particles, the direct interactions between proteins and silanol groups make it difficult to immobilize the proteins and maintain their highly ordered structures. Thus, the importance of the formation of a surface layer consisting of water molecules and ions (i.e., a non-apatitic layer) on the particle surfaces for immobilizing proteins and maintaining their highly ordered structures was suggested and described. In particular, chlorine-containing amorphous silica particles were also described, which can effectively form the surface layer of protein immobilization carriers. The design of the bio-interactive and bio-compatible surfaces for protein immobilization while maintaining the highly ordered structures will improve cell adhesion and tissue formation, thereby contributing to the construction of social infrastructures to support super-aged society.
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Affiliation(s)
| | | | | | | | | | - Motohiro Tagaya
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka 940-2188, Japan
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Easson M, Wong S, Moody M, Schmidt TA, Deymier A. Physiochemical effects of acid exposure on bone composition and function. J Mech Behav Biomed Mater 2024; 150:106304. [PMID: 38096610 DOI: 10.1016/j.jmbbm.2023.106304] [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] [Received: 12/12/2022] [Revised: 10/04/2023] [Accepted: 12/02/2023] [Indexed: 01/09/2024]
Abstract
Bone is primarily composed of collagen and apatite, two materials which exhibit a high sensitivity to pH dysregulation. As a result, acid exposure of bone, both clinically and in the laboratory is expected to cause compositional and mechanical changes to the tissue. Clinically, Metabolic acidosis (MA), a condition characterized by a reduced physiological pH, has been shown to have negative implications on bone health, including a decrease in bone mineral density and volume as well as increased fracture risk. The addition of bone-like apatite to ionic solutions such as phosphate buffered saline (PBS) and media has been shown to acidify the solution leading to bone acid exposure. Therefore, is it essential to understand how reduced pH physiochemically affects bone composition and in turn its mechanical properties. This study investigates the specific changes in bone due to physiochemical dissolution in acid. Excised murine bones were placed in PBS solutions at different pHs: a homeostatic pH level (pH 7.4), an acidosis equivalent (pH 7.0), and an extreme acidic solution (pH 5.5). After 5 days, the bones were removed from the solutions and characterized to determine compositional and material changes. We found that bones, without cells, were able to regulate pH via buffering, leading to a decrease in bone mineral content and an increase in collagen denaturation. Both of these compositional changes contributed to an increase in bone toughness by creating a more ductile bone surface and preventing crack propagation. Therefore, we conclude that the skeletal systems' physiochemical response to acid exposure includes multifaceted and spatially variable compositional changes that affect bone mechanics.
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Affiliation(s)
- Margaret Easson
- Dept. of Biomedical Engineering, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Stephanie Wong
- Dept. of Biomedical Engineering, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Mikayla Moody
- Dept. of Biomedical Engineering, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Tannin A Schmidt
- Dept. of Biomedical Engineering, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Alix Deymier
- Dept. of Biomedical Engineering, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT, USA.
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4
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Bauer L, Antunović M, Ivanković H, Ivanković M. Biomimetic Scaffolds Based on Mn 2+-, Mg 2+-, and Sr 2+-Substituted Calcium Phosphates Derived from Natural Sources and Polycaprolactone. Biomimetics (Basel) 2024; 9:30. [PMID: 38248604 PMCID: PMC10813741 DOI: 10.3390/biomimetics9010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/18/2023] [Accepted: 12/25/2023] [Indexed: 01/23/2024] Open
Abstract
The occurrence of bone disorders is steadily increasing worldwide. Bone tissue engineering (BTE) has emerged as a promising alternative to conventional treatments of bone defects, developing bone scaffolds capable of promoting bone regeneration. In this research, biomimetic scaffolds based on ion-substituted calcium phosphates, derived from cuttlefish bone, were prepared using a hydrothermal method. To synthesize Mn2+-substituted scaffolds, three different manganese concentrations (corresponding to 1, 2.5, and 5 mol% Mn substitutions for Ca into hydroxyapatite) were used. Also, syntheses with the simultaneous addition of an equimolar amount (1 mol%) of two (Mg2+ and Sr2+) or three ions (Mn2+, Mg2+, and Sr2+) were performed. A chemical, structural, and morphological characterization was carried out using X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. The effects of the ion substitutions on the lattice parameters, crystallite sizes, and fractions of the detected phases were discussed. Multi-substituted (Mn2+, Mg2+, and Sr2+) scaffolds were coated with polycaprolactone (PCL) using simple vacuum impregnation. The differentiation of human mesenchymal stem cells (hMSCs), cultured on the PCL-coated scaffold, was evaluated using histology, immunohistochemistry, and reverse transcription-quantitative polymerase chain reaction analyses. The expression of collagen I, alkaline phosphatase, and dentin matrix protein 1 was detected. The influence of PCL coating on hMSCs behavior is discussed.
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Affiliation(s)
- Leonard Bauer
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Maja Antunović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Hrvoje Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
| | - Marica Ivanković
- Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, HR-10001 Zagreb, Croatia
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Sugimoto K, Zhou Y, Galindo TGP, Kimura R, Tagaya M. Investigation of Surface Layers on Biological and Synthetic Hydroxyapatites Based on Bone Mineralization Process. Biomimetics (Basel) 2023; 8:biomimetics8020184. [PMID: 37218770 DOI: 10.3390/biomimetics8020184] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
In this review, the current status of the influence of added ions (i.e., SiO44-, CO32-, etc.) and surface states (i.e., hydrated and non-apatite layers) on the biocompatibility nature of hydroxyapatite (HA, Ca10(PO4)6(OH)2) is discussed. It is well known that HA is a type of calcium phosphate with high biocompatibility that is present in biological hard tissues such as bones and enamel. This biomedical material has been extensively studied due to its osteogenic properties. The chemical composition and crystalline structure of HA change depending on the synthetic method and the addition of other ions, thereby affecting the surface properties related to biocompatibility. This review illustrates the structural and surface properties of HA substituted with ions such as silicate, carbonate, and other elemental ions. The importance of the surface characteristics of HA and its components, the hydration layers, and the non-apatite layers for the effective control of biomedical function, as well as their relationship at the interface to improve biocompatibility, has been highlighted. Since the interfacial properties will affect protein adsorption and cell adhesion, the analysis of their properties may provide ideas for effective bone formation and regeneration mechanisms.
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Affiliation(s)
- Kazuto Sugimoto
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
| | - Yanni Zhou
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
| | | | - Reo Kimura
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
| | - Motohiro Tagaya
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
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Bone Apatite Nanocrystal: Crystalline Structure, Chemical Composition, and Architecture. Biomimetics (Basel) 2023; 8:biomimetics8010090. [PMID: 36975320 PMCID: PMC10046636 DOI: 10.3390/biomimetics8010090] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/04/2023] [Accepted: 02/10/2023] [Indexed: 02/24/2023] Open
Abstract
The biological and mechanical functions of bone rely critically on the inorganic constituent, which can be termed as bone apatite nanocrystal. It features a hydroxylapatite-like crystalline structure, complex chemical compositions (e.g., carbonate-containing and calcium- and hydroxyl-deficient), and fine geometries and properties. The long research with vast literature across broad spectra of disciplines and fields from chemistry, crystallography, and mineralogy, to biology, medical sciences, materials sciences, mechanics, and engineering has produced a wealth of knowledge on the bone apatite nanocrystal. This has generated significant impacts on bioengineering and industrial engineering, e.g., in developing new biomaterials with superior osteo-inductivities and in inspiring novel strong and tough composites, respectively. Meanwhile, confusing and inconsistent understandings on the bone mineral constituent should be addressed to facilitate further multidisciplinary progress. In this review, we present a mineralogical account of the bone-related ideal apatite mineral and then a brief historical overview of bone mineral research. These pave the road to understanding the bone apatite nanocrystal via a material approach encompassing crystalline structure, diverse chemical formulae, and interesting architecture and properties, from which several intriguing research questions emerge for further explorations. Through providing the classical and latest findings with decent clearness and adequate breadth, this review endeavors to promote research advances in a variety of related science and engineering fields.
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Characterization of collagen response to bone fracture healing using polarization-SHG. Sci Rep 2022; 12:18453. [PMID: 36323698 PMCID: PMC9630316 DOI: 10.1038/s41598-022-21876-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, we extend on the three parameter analysis approach of utilizing a noninvasive dual-liquid-crystal-based polarization-resolved second harmonic generation (SHG) microscopy to facilitate the quantitative characterization of collagen types I and II in fracture healing tissues. The SHG images under various linear and circular polarization states are analyzed and quantified in terms of the peptide pitch angle (PA), SHG-circular dichroism (CD), and anisotropy parameter (AP). The results show that the collagen PA has a value of 49.26° after 2 weeks of fracture healing (collagen type II domination) and 49.05° after 4 weeks (collagen type I domination). Moreover, the SHG-CD and AP values of the different collagen types differ by 0.05. The change tendencies of the extracted PA, SHG-CD, and AP parameters over the healing time are consistent with the collagen properties of healthy nonfractured bone. Thus, the feasibility of the proposed dual-liquid-crystal-based polarization-SHG method for differentiating between collagen types I and II in bone fracture healing tissue is confirmed.
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Strutynska N, Slobodyanik M, Tykhonenko T, Titov Y, Stus N. Features of synthesis of sodium and carbonate containing biphasic calcium phosphates and their cytotoxicity. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02521-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Salam N, Gibson IR. Lithium ion doped carbonated hydroxyapatite compositions: Synthesis, physicochemical characterisation and effect on osteogenic response in vitro. BIOMATERIALS ADVANCES 2022; 140:213068. [PMID: 35939955 DOI: 10.1016/j.bioadv.2022.213068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 07/08/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Hydroxyapatite is a commonly researched biomaterial for bone regeneration applications. To augment performance, hydroxyapatite can be substituted with functional ions to promote repair. Here, co-substituted lithium ion (Li+) and carbonate ion hydroxyapatite compositions were synthesised by an aqueous precipitation method. The co-substitution of Li+ and CO32- is a novel approach that accounts for charge balance, which has been ignored in the synthesis of Li doped calcium phosphates to date. Three compositions were synthesised: Li+-free (Li 0), low Li+ (Li 0.25), and high Li+ (Li 1). Synthesised samples were sintered as microporous discs (70-75 % theoretical sintered density) prior to being ground and fractionated to produce granules and powders, which were then characterised and evaluated in vitro. Physical and chemical characterisation demonstrated that lithium incorporation in Li 0.25 and Li 1 samples approached design levels (0.25 and 1 mol%), containing 0.253 and 0.881 mol% Li+ ions, respectively. The maximum CO32- ion content was observed in the Li 1 sample, with ~8 wt% CO3, with the carbonate ions located on both phosphate and hydroxyl sites in the crystal structure. Measurement of dissolution products following incubation experiments indicated a Li+ burst release profile in DMEM, with incubation of 30 mg/ml sample resulting in a Li+ ion concentration of approximately 140 mM after 24 h. For all compositions evaluated, sintered discs allowed for favourable attachment and proliferation of C2C12 cells, human osteoblast (hOB) cells, and human mesenchymal stem cells (hMSCs). An increase in alkaline phosphatase (ALP) activity with Li+ doping was demonstrated in C2C12 cells and hMSCs seeded onto sintered discs, whilst the inverse was observed in hOB cells. Furthermore, an increase in ALP activity was observed in C2C12 cells and hMSCs in response to dissolution products from Li 1 samples which related to Li+ release. Complementary experiments to further investigate the findings from hOB cells confirmed an osteogenic role of the surface topography of the discs. This research has shown successful synthesis of Li+ doped carbonated hydroxyapatite which demonstrated cytocompatibility and enhanced osteogenesis in vitro, compared to Li+-free controls.
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Affiliation(s)
- Nasseem Salam
- Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Iain R Gibson
- Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK; Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, UK.
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Kuczumow A, Gorzelak M, Kosiński J, Lasota A, Blicharski T, Gągała J, Nowak J, Jarzębski M, Jabłoński M. Hierarchy of Bioapatites. Int J Mol Sci 2022; 23:ijms23179537. [PMID: 36076932 PMCID: PMC9455617 DOI: 10.3390/ijms23179537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 11/24/2022] Open
Abstract
Apatites are one of the most intensively studied materials for possible biomedical applications. New perspectives of possible application of apatites correspond with the development of nanomaterials and nanocompounds. Here, an effort to systematize different kinds of human bioapatites forming bones, dentin, and enamel was undertaken. The precursors of bioapatites and hydroxyapatite were also considered. The rigorous consideration of compositions and stoichiometry of bioapatites allowed us to establish an order in their mutual sequence. The chemical reactions describing potential transformations of biomaterials from octacalcium phosphate into hydroxyapatite via all intermediate stages were postulated. Regardless of whether the reactions occur in reality, all apatite biomaterials behave as if they participate in them. To conserve the charge, additional free charges were introduced, with an assumed meaning to be joined with the defects. The distribution of defects was coupled with the values of crystallographic parameters “a” and “c”. The energetic balances of bioapatite transformations were calculated. The apatite biomaterials are surprisingly regular structures with non-integer stoichiometric coefficients. The results presented here will be helpful for the further design and development of nanomaterials.
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Affiliation(s)
- Andrzej Kuczumow
- ComerLab Dorota Nowak, Radawiec Duży 196, 21-030 Motycz, Poland
- Correspondence: (A.K.); or (M.J.); Tel.: +48-535-255-775 (M.J.)
| | - Mieczysław Gorzelak
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, K. Jaczewskiego 8, 20-090 Lublin, Poland
| | - Jakub Kosiński
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, K. Jaczewskiego 8, 20-090 Lublin, Poland
| | - Agnieszka Lasota
- Chair and Department of Jaw Orthopedics, Medical University of Lublin, Chodźki 6, 20-093 Lublin, Poland
| | - Tomasz Blicharski
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, K. Jaczewskiego 8, 20-090 Lublin, Poland
| | - Jacek Gągała
- Department of Orthopaedics and Traumatology, Medical University of Lublin, K. Jaczewskiego 8, 20-090 Lublin, Poland
| | - Jakub Nowak
- ComerLab Dorota Nowak, Radawiec Duży 196, 21-030 Motycz, Poland
| | - Maciej Jarzębski
- Department of Physics and Biophysics, Poznan University of Life Sciences, Wojska Polskiego 38/42, 60-637 Poznan, Poland
- Correspondence: (A.K.); or (M.J.); Tel.: +48-535-255-775 (M.J.)
| | - Mirosław Jabłoński
- Department of Orthopaedics and Rehabilitation, Medical University of Lublin, K. Jaczewskiego 8, 20-090 Lublin, Poland
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Akartasse N, Azzaoui K, Mejdoubi E, Hanbali G, Elansari LL, Jodeh S, Hammouti B, Jodeh W, Lamhamdi A. Study and Optimization of the Synthesis of Apatitic Nanoparticles by the Dissolution/Precipitation Method. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-06283-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Environmental-Friendly Adsorbent Composite Based on Hydroxyapatite/Hydroxypropyl Methyl-Cellulose for Removal of Cationic Dyes from an Aqueous Solution. Polymers (Basel) 2022; 14:polym14112147. [PMID: 35683819 PMCID: PMC9182971 DOI: 10.3390/polym14112147] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 01/16/2023] Open
Abstract
The aim of this study is to develop a new, efficient, and inexpensive natural-based adsorbent with high efficacy for the cationic dye methylene blue (MB). A natural-based nanocomposite based on hydroxyapatite (HAp) and hydroxypropyl methylcellulose (HPMC) was selected for this purpose. It was synthesized by the dissolution/reprecipitation method. A film with a homogeneous and smooth surface composed of nanoparticles was prepared from the nanocomposite. HPMC and HAp biopolymers were selected due to their compatibility, biodegradability, and non-toxicity. Total reflectance infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), and calorimetric/thermal gravimetric (DSC/TGA) analysis results revealed the existence of strong physical interaction between the composite components. Scanning electron microscopy (SEM) observations show a composite sheet with a homogenous and smooth surface, indicating excellent compatibility between HPMC and HAp in the composite. The nanocomposite was evaluated as an adsorbent for organic dyes in an aqueous solution. The effects of solution pH, initial MB concentration, composite concentration, and adsorption time on the adsorption efficiency were evaluated. The highest adsorption rate was seen as 52.0 mg of MB/g composite. The adsorption rate reached equilibrium in about 20 min. Fitting of the adsorption data to the Langmuir and Freundlich adsorption models was investigated. Results showed that the adsorption process follows the Langmuir isotherm model. The kinetic study results revealed that the adsorption process was pseudo-second-order. The herein composite is an excellent alternative for use as contemporary industrial-scale adsorbents.
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Comparison of rhBMP-2 in Combination with Different Biomaterials for Regeneration in Rat Calvaria Critical-Size Defects. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6281641. [PMID: 35509708 PMCID: PMC9061001 DOI: 10.1155/2022/6281641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 03/25/2022] [Indexed: 12/31/2022]
Abstract
Regeneration of critical bone defects requires the use of biomaterials. The incorporation of osteoinductive agents, such as bone morphogenetic proteins (BMPs), improves bone formation. This study aimed to compare the efficacy of rhBMP-2 in combination with different materials for bone regeneration in critical-sized rat calvarial defects. This was an experimental animal study using 30 rats. In each rat, two 5-mm critical-size defects were made in the calvaria (60 bone defects in total) using a trephine. All rats were randomized to one of the six groups: control (C), autograft + rhBMP-2 (A), absorbable collagen sponge + rhBMP-2 (ACS), β-tricalcium phosphate + rhBMP-2 (B-TCP), bovine xenograft + rhBMP-2 (B), and hydroxyapatite + rhBMP-2 (HA). The outcome was assessed after 4 and 8 weeks using histological description and the histological bone healing scale. Statistical analysis was performed using the Kruskal-Wallis and Mann–Whitney U tests, with a p-value set at 0.05. The average bone healing scores per group were as follows: C group, 12.5; A group, 26.5; ACS group, 18.8; B-TCP group, 26.2; HA group, 20.9; and B group, 20.9. The C group showed a significant difference between weeks 4 and 8 (p = 0.032). Among the 4-week groups, the C group showed a significant difference compared to A (p = 0.001), ACS (p = 0.017), and B-TCP (p = 0.005) groups. The 8-week experimental group did not show any significant differences between the groups. The 5-mm critical size defect in rat calvaria requires the use of bone biomaterials to heal at 4 and 8 weeks. rhBMP-2, as applied in this study, showed no difference in new bone formation when combined with bovine, B-TCP, or HA biomaterials.
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Bergslien ET. X-ray diffraction (XRD) evaluation of questioned cremains. Forensic Sci Int 2022; 332:111171. [PMID: 35033962 DOI: 10.1016/j.forsciint.2022.111171] [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: 07/23/2021] [Revised: 11/14/2021] [Accepted: 01/01/2022] [Indexed: 11/18/2022]
Abstract
The practice of cremating human remains is becoming increasingly common around the world, which has also resulted in increased incidents of mishandling, illegal disposal, and fraud. X-ray diffraction (XRD) offers a clear method of differentiating cremated remains from common filler materials, such as cement and wood ash. XRD can also be used to determine if cremated remains have been contaminated, and if so, to what extent. An evaluation of published data and in-house work, however, demonstrates that XRD cannot be used to differentiate human cremains from the processed cremains of other animals. XRD is a powerful analytical technique but must be employed with an understanding of both the limits of the instrumentation and the wide diversity of the human population.
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Affiliation(s)
- E T Bergslien
- Earth Sciences and Science Education, 165 Science and Mathematics Complex, 1300 Elmwood Ave., Buffalo, NY 14222, USA.
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15
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Jiang J, Liu W, Xiong Z, Hu Y, Xiao J. Effects of biomimetic hydroxyapatite coatings on osteoimmunomodulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 134:112640. [DOI: 10.1016/j.msec.2021.112640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/15/2021] [Accepted: 12/28/2021] [Indexed: 12/24/2022]
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16
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Ulian G, Moro D, Valdrè G. Hydroxylapatite and Related Minerals in Bone and Dental Tissues: Structural, Spectroscopic and Mechanical Properties from a Computational Perspective. Biomolecules 2021; 11:728. [PMID: 34068073 PMCID: PMC8152500 DOI: 10.3390/biom11050728] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 01/07/2023] Open
Abstract
Hard tissues (e.g., bone, enamel, dentin) in vertebrates perform various and different functions, from sustaining the body to haematopoiesis. Such complex and hierarchal tissue is actually a material composite whose static and dynamic properties are controlled by the subtle physical and chemical interplay between its components, collagen (main organic part) and hydroxylapatite-like mineral. The knowledge needed to fully understand the properties of bony and dental tissues and to develop specific applicative biomaterials (e.g., fillers, prosthetics, scaffolds, implants, etc.) resides mostly at the atomic scale. Among the different methods to obtains such detailed information, atomistic computer simulations (in silico) have proven to be both corroborative and predictive tools in this subject. The authors have intensively worked on quantum mechanical simulations of bioapatite and the present work reports a detailed review addressed to the crystal-chemical, physical, spectroscopic, mechanical, and surface properties of the mineral phase of bone and dental tissues. The reviewed studies were conducted at different length and time scales, trying to understand the features of hydroxylapatite and biological apatite models alone and/or in interaction with simplified collagen-like models. The reported review shows the capability of the computational approach in dealing with complex biological physicochemical systems, providing accurate results that increase the overall knowledge of hard tissue science.
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Affiliation(s)
- Gianfranco Ulian
- Centro di Ricerca Interdisciplinare di Biomineralogia, Cristallografia e Biomateriali, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna Alma Mater Studiorum, P. Porta San Donato 1, 40126 Bologna, Italy;
| | | | - Giovanni Valdrè
- Centro di Ricerca Interdisciplinare di Biomineralogia, Cristallografia e Biomateriali, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna Alma Mater Studiorum, P. Porta San Donato 1, 40126 Bologna, Italy;
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17
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Suchý T, Vištejnová L, Šupová M, Klein P, Bartoš M, Kolinko Y, Blassová T, Tonar Z, Pokorný M, Sucharda Z, Žaloudková M, Denk F, Ballay R, Juhás Š, Juhásová J, Klapková E, Horný L, Sedláček R, Grus T, Čejka Z, Čejka Z, Chudějová K, Hrabák J. Vancomycin-Loaded Collagen/Hydroxyapatite Layers Electrospun on 3D Printed Titanium Implants Prevent Bone Destruction Associated with S. epidermidis Infection and Enhance Osseointegration. Biomedicines 2021; 9:biomedicines9050531. [PMID: 34068788 PMCID: PMC8151920 DOI: 10.3390/biomedicines9050531] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/13/2021] [Accepted: 05/04/2021] [Indexed: 12/14/2022] Open
Abstract
The aim of the study was to develop an orthopedic implant coating in the form of vancomycin-loaded collagen/hydroxyapatite layers (COLHA+V) that combine the ability to prevent bone infection with the ability to promote enhanced osseointegration. The ability to prevent bone infection was investigated employing a rat model that simulated the clinically relevant implant-related introduction of bacterial contamination to the bone during a surgical procedure using a clinical isolate of Staphylococcus epidermidis. The ability to enhance osseointegration was investigated employing a model of a minipig with terminated growth. Six weeks following implantation, the infected rat femurs treated with the implants without vancomycin (COLHA+S. epidermidis) exhibited the obvious destruction of cortical bone as evinced via a cortical bone porosity of up to 20% greater than that of the infected rat femurs treated with the implants containing vancomycin (COLHA+V+S. epidermidis) (3%) and the non-infected rat femurs (COLHA+V) (2%). The alteration of the bone structure of the infected COLHA+S. epidermidis group was further demonstrated by a 3% decrease in the average Ca/P molar ratio of the bone mineral. Finally, the determination of the concentration of vancomycin released into the blood stream indicated a negligible systemic load. Six months following implantation in the pigs, the quantified ratio of new bone indicated an improvement in osseointegration, with a two-fold bone ingrowth on the COLHA (47%) and COLHA+V (52%) compared to the control implants without a COLHA layer (27%). Therefore, it can be concluded that COLHA+V layers are able to significantly prevent the destruction of bone structure related to bacterial infection with a minimal systemic load and, simultaneously, enhance the rate of osseointegration.
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Affiliation(s)
- Tomáš Suchý
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, Czech Academy of Sciences, 18209 Prague 8, Czech Republic; (M.Š.); (Z.S.); (M.Ž.); (F.D.)
- Faculty of Mechanical Engineering, Czech Technical University in Prague, 16000 Prague 6, Czech Republic; (L.H.); (R.S.)
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
- Correspondence: ; +420-777-608-280
| | - Lucie Vištejnová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, 301 00 Pilsen, Czech Republic
| | - Monika Šupová
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, Czech Academy of Sciences, 18209 Prague 8, Czech Republic; (M.Š.); (Z.S.); (M.Ž.); (F.D.)
| | - Pavel Klein
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
| | - Martin Bartoš
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
- Institute of Dental Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, 12000 Prague 2, Czech Republic
- Institute of Anatomy, First Faculty of Medicine, Charles University, 12000 Prague 2, Czech Republic
| | - Yaroslav Kolinko
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, 301 00 Pilsen, Czech Republic
| | - Tereza Blassová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, 301 00 Pilsen, Czech Republic
| | - Zbyněk Tonar
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University, 301 00 Pilsen, Czech Republic
| | - Marek Pokorný
- R&D Department, Contipro Inc., 56102 Dolni Dobrouc, Czech Republic;
| | - Zbyněk Sucharda
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, Czech Academy of Sciences, 18209 Prague 8, Czech Republic; (M.Š.); (Z.S.); (M.Ž.); (F.D.)
| | - Margit Žaloudková
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, Czech Academy of Sciences, 18209 Prague 8, Czech Republic; (M.Š.); (Z.S.); (M.Ž.); (F.D.)
| | - František Denk
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, Czech Academy of Sciences, 18209 Prague 8, Czech Republic; (M.Š.); (Z.S.); (M.Ž.); (F.D.)
- Faculty of Mechanical Engineering, Czech Technical University in Prague, 16000 Prague 6, Czech Republic; (L.H.); (R.S.)
| | - Rastislav Ballay
- 1st Department of Orthopedics, First Faculty of Medicine, Charles University in Prague and Motol University Hospital, 150 06 Prague 5, Czech Republic;
| | - Štefan Juhás
- PIGMOD Centre, Laboratory of Cell Regeneration and Plasticity, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Libechov, Czech Republic; (Š.J.); (J.J.)
| | - Jana Juhásová
- PIGMOD Centre, Laboratory of Cell Regeneration and Plasticity, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 27721 Libechov, Czech Republic; (Š.J.); (J.J.)
| | - Eva Klapková
- Department of Medical Chemistry and Clinical Biochemistry, Charles University, 2nd Medical School and University Hospital Motol, 15006 Prague 5, Czech Republic;
| | - Lukáš Horný
- Faculty of Mechanical Engineering, Czech Technical University in Prague, 16000 Prague 6, Czech Republic; (L.H.); (R.S.)
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
| | - Radek Sedláček
- Faculty of Mechanical Engineering, Czech Technical University in Prague, 16000 Prague 6, Czech Republic; (L.H.); (R.S.)
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
| | - Tomáš Grus
- 2nd Department of Cardiovascular Surgery, First Faculty of Medicine, Charles University and General University Hospital in Prague, 12000 Prague 2, Czech Republic;
| | - Zdeněk Čejka
- ProSpon Ltd., 27201 Kladno, Czech Republic; (Z.Č.J.); (Z.Č.)
| | - Zdeněk Čejka
- ProSpon Ltd., 27201 Kladno, Czech Republic; (Z.Č.J.); (Z.Č.)
| | - Kateřina Chudějová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
| | - Jaroslav Hrabák
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 30100 Pilsen, Czech Republic; (L.V.); (P.K.); (M.B.); (Y.K.); (T.B.); (Z.T.); (K.C.); (J.H.)
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18
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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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19
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Taylor EA, Donnelly E. Raman and Fourier transform infrared imaging for characterization of bone material properties. Bone 2020; 139:115490. [PMID: 32569874 DOI: 10.1016/j.bone.2020.115490] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/08/2020] [Accepted: 06/11/2020] [Indexed: 12/12/2022]
Abstract
As the application of Raman spectroscopy to study bone has grown over the past decade, making it a peer technology to FTIR spectroscopy, it has become critical to understand their complimentary roles. Recent technological advancements have allowed these techniques to collect grids of spectra in a spatially resolved fashion to generate compositional images. The advantage of imaging with these techniques is that it allows the heterogenous bone tissue composition to be resolved and quantified. In this review we compare, for non-experts in the field of vibrational spectroscopy, the instrumentation and underlying physical principles of FTIR imaging (FTIRI) and Raman imaging. Additionally, we discuss the strengths and limitations of FTIR and Raman spectroscopy, address sample preparation, and discuss outcomes to provide researchers insight into which techniques are best suited for a given research question. We then briefly discuss previous applications of FTIRI and Raman imaging to characterize bone tissue composition and relationships of compositional outcomes with mechanical performance. Finally, we discuss emerging technical developments in FTIRI and Raman imaging which provide new opportunities to identify changes in bone tissue composition with disease, age, and drug treatment.
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Affiliation(s)
- Erik A Taylor
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, United States of America
| | - Eve Donnelly
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, United States of America; Research division, Hospital for Special Surgery, New York, NY, United States of America.
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20
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Prati C, Zamparini F, Botticelli D, Ferri M, Yonezawa D, Piattelli A, Gandolfi MG. The Use of ESEM-EDX as an Innovative Tool to Analyze the Mineral Structure of Peri-Implant Human Bone. MATERIALS 2020; 13:ma13071671. [PMID: 32260166 PMCID: PMC7178284 DOI: 10.3390/ma13071671] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/25/2020] [Accepted: 03/30/2020] [Indexed: 12/24/2022]
Abstract
This study aimed to investigate the mineralization and chemical composition of the bone–implant interface and peri-implant tissues on human histological samples using an environmental scanning electron microscope as well as energy-dispersive x-ray spectroscopy (ESEM-EDX) as an innovative method. Eight unloaded implants with marginal bone tissue were retrieved after four months from eight patients and were histologically processed and analyzed. Histological samples were observed under optical microscopy (OM) to identify the microarchitecture of the sample and bone morphology. Then, all samples were observed under ESEM-EDX from the coronal to the most apical portion of the implant at 500x magnification. A region of interest with bone tissue of size 750 × 500 microns was selected to correspond to the first coronal and the last apical thread (ROI). EDX microanalysis was used to assess the elemental composition of the bone tissue along the thread interface and the ROI. Atomic percentages of Ca, P, N, and Ti, and the Ca/N, P/N and Ca/P ratios were measured in the ROI. Four major bone mineralization areas were identified based on the different chemical composition and ratios of the ROI. Area 1: A well-defined area with low Ca/N, P/N, and Ca/P was identified as low-density bone. Area 2: A defined area with higher Ca/N, P/N, and Ca/P, identified as new bone tissue, or bone remodeling areas. Area 3: A well-defined area with high Ca/N, /P/N, and Ca/P ratios, identified as bone tissue or bone chips. Area 4: An area with high Ca/N, P/N, and Ca/P ratios, which was identified as mature old cortical bone. Bone Area 2 was the most represented area along the bone–implant interface, while Bone Area 4 was identified only at sites approximately 1.5 mm from the interface. All areas were identified around implant biopsies, creating a mosaic-shaped distribution with well-defined borders. ESEM-EDX in combination with OM allowed to perform a microchemical analysis and offered new important information on the organic and inorganic content of the bone tissue around implants.
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Affiliation(s)
- Carlo Prati
- Endodontic Clinical Section, School of Dentistry, Department of Biomedical and Neuromotor Sciences, University of Bologna, 40125 Bologna, Italy;
- Correspondence:
| | - Fausto Zamparini
- Endodontic Clinical Section, School of Dentistry, Department of Biomedical and Neuromotor Sciences, University of Bologna, 40125 Bologna, Italy;
- Laboratory of Biomaterials and Oral Pathology, School of Dentistry, Department of Biomedical and Neuromotor Sciences, University of Bologna, 40125 Bologna, Italy;
| | | | - Mauro Ferri
- Corporación Universitária Rafael Núñez, Cartagena de Indias 130014, Colombia;
| | - Daichi Yonezawa
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8102, Japan;
| | - Adriano Piattelli
- Department of Medical Oral and Biotechnological Sciences, University of Chieti Pescara, 66100 Chieti, Italy;
| | - Maria Giovanna Gandolfi
- Laboratory of Biomaterials and Oral Pathology, School of Dentistry, Department of Biomedical and Neuromotor Sciences, University of Bologna, 40125 Bologna, Italy;
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21
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Smrhova T, Junkova P, Kuckova S, Suchy T, Supova M. Peptide mass mapping in bioapatites isolated from animal bones. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:32. [PMID: 32152749 DOI: 10.1007/s10856-020-06371-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
Bioapatite ceramics produced from biogenic sources provide highly attractive materials for the preparation of artificial replacements since such materials are not only more easily accepted by living organisms, but bioapatite isolated from biowaste such as xenogeneous bones also provides a low-cost material. Nevertheless, the presence of organic compounds in the bioapatite may lead to a deterioration in its quality and may trigger an undesirable immune response. Therefore, procedures which ensure the elimination of organic compounds through bioapatite isolation are being subjected to intense investigation and the presence of remaining organic impurities is being determined through the application of various methods. Since current conclusions concerning the conditions suitable for the elimination of organic compounds remain ambiguous, we used the mass spectrometry-based proteomic approach in order to determine the presence of proteins or peptides in bioapatite samples treated under the most frequently employed conditions, i.e., the alkaline hydrothermal process and calcination at 500 °C. Since we also investigated the presence of proteins or peptides in treated bioapatite particles of differing sizes, we discovered that both calcination and the size of the bioapatite particles constitute the main factors influencing the presence of proteins or peptides in bioapatite. In fact, while intact proteins were detected even in calcinated bioapatite consisting of particles >250 µm, no proteins were detected in the same material consisting of particles <40 µm. Therefore, we recommend the use of powdered bioapatite for the preparation of artificial replacements since it is more effectively purified than apatite in the form of blocks. In addition, we observed that while alkaline hydrothermal treatment leads to the non-specific cleavage of proteins, it does not ensure the full degradation thereof.
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Affiliation(s)
- Tereza Smrhova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 3, 166 28, Prague 6, Czech Republic
| | - Petra Junkova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 3, 166 28, Prague 6, Czech Republic
| | - Stepanka Kuckova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 3, 166 28, Prague 6, Czech Republic
| | - Tomas Suchy
- Department of Composite and Carbon Materials, Institute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09, Prague, Czech Republic
| | - Monika Supova
- Department of Composite and Carbon Materials, Institute of Rock Structure and Mechanics, The Czech Academy of Sciences, V Holešovičkách 41, 182 09, Prague, Czech Republic.
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22
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Garbo C, Locs J, D'Este M, Demazeau G, Mocanu A, Roman C, Horovitz O, Tomoaia-Cotisel M. Advanced Mg, Zn, Sr, Si Multi-Substituted Hydroxyapatites for Bone Regeneration. Int J Nanomedicine 2020; 15:1037-1058. [PMID: 32103955 PMCID: PMC7025681 DOI: 10.2147/ijn.s226630] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 12/03/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose Compositional tailoring is gaining more attention in the development of advanced biomimetic nanomaterials. In this study, we aimed to prepare advanced multi-substituted hydroxyapatites (ms-HAPs), which show similarity with the inorganic phase of bones and might have therapeutic potential for bone regeneration. Materials Novel nano hydroxyapatites substituted simultaneously with divalent cations: Mg2+ (1.5%), Zn2+ (0.2%), Sr2+ (5% and 10%), and Si (0.2%) as orthosilicate (SiO44-) were designed and successfully synthesized for the first time. Methods The ms-HAPs were obtained via a wet-chemistry precipitation route without the use of surfactants, which is a safe and ecologically friendly method. The composition of synthesized materials was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The materials were characterized by X-ray powder diffraction (XRD), FT-IR and FT-Raman spectroscopy, BET measurements and by imaging techniques using high-resolution TEM (HR-TEM), FE-SEM coupled with EDX, and atomic force microscopy (AFM). The ion release was measured in water and in simulated body fluid (SBF). Results Characterization methods confirmed the presence of the unique phase of pure stoichiometric HAP structure and high compositional purity of all synthesized nanomaterials. The doping elements influenced the crystallite size, the crystallinity, lattice parameters, morphology, particle size and shape, specific surface area, and porosity. Results showed a decrease in both nanoparticle size and crystallinity degree, coupled with an increase in specific surface area of these advanced ms-HAP materials, in comparison with pure stoichiometric HAP. The release of biologically important ions was confirmed in different liquid media, both in static and simulated dynamic conditions. Conclusion The incorporation of the four substituting elements into the HAP structure is demonstrated. Synthesized nanostructured ms-HAP materials might inherit the in vivo effects of substituting functional elements and properties of hydroxyapatite for bone healing and regeneration. Results revealed a rational tailoring approach for the design of a next generation of bioactive ms-HAPs as promising candidates for bone regeneration.
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Affiliation(s)
- Corina Garbo
- Babes-Bolyai University of Cluj-Napoca, Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Cluj-Napoca 400028, Romania
| | - 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 LV-1007, Latvia
| | - Matteo D'Este
- AO Research Institute Davos, Davos Platz 7270, Switzerland
| | | | - Aurora Mocanu
- Babes-Bolyai University of Cluj-Napoca, Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Cluj-Napoca 400028, Romania
| | - Cecilia Roman
- INCDO INOE 2000, Research Institute for Analytical Instrumentation, Cluj-Napoca 400293, Romania
| | - Ossi Horovitz
- Babes-Bolyai University of Cluj-Napoca, Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Cluj-Napoca 400028, Romania
| | - Maria Tomoaia-Cotisel
- Babes-Bolyai University of Cluj-Napoca, Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Cluj-Napoca 400028, Romania.,Academy of Romanian Scientists, Bucharest 050094, Romania
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23
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Hughes EAB, Robinson TE, Bassett DB, Cox SC, Grover LM. Critical and diverse roles of phosphates in human bone formation. J Mater Chem B 2019; 7:7460-7470. [PMID: 31729501 DOI: 10.1039/c9tb02011j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Humans utilise biomineralisation in the formation of bone and teeth. Human biomineralisation processes are defined by the transformation of an amorphous phosphate-based precursor to highly organised nanocrystals. Interestingly, ionic phosphate species not only provide a fundamental building block of biological mineral, but rather exhibit several diverse roles in mediating mineral formation in the physiological milieu. In this review, we focus on elucidating the complex roles of phosphate ions and molecules within human biomineralisation pathways, primarily referring to the nucleation and crystallisation of bone mineral.
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Affiliation(s)
- Erik A B Hughes
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK. and NIHR Surgical Rec and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham, UK
| | - Thomas E Robinson
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK.
| | - David B Bassett
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK. and Department of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Sophie C Cox
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK.
| | - Liam M Grover
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK.
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24
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Hayashi K, Kishida R, Tsuchiya A, Ishikawa K. Carbonate Apatite Micro‐Honeycombed Blocks Generate Bone Marrow‐Like Tissues as well as Bone. ACTA ACUST UNITED AC 2019; 3:e1900140. [DOI: 10.1002/adbi.201900140] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/15/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Koichiro Hayashi
- Department of BiomaterialsFaculty of Dental Science, Kyushu University 3‐1‐1 Maidashi, Higashi‐ku Fukuoka 812–8582 Japan
| | - Ryo Kishida
- Department of BiomaterialsFaculty of Dental Science, Kyushu University 3‐1‐1 Maidashi, Higashi‐ku Fukuoka 812–8582 Japan
| | - Akira Tsuchiya
- Department of BiomaterialsFaculty of Dental Science, Kyushu University 3‐1‐1 Maidashi, Higashi‐ku Fukuoka 812–8582 Japan
| | - Kunio Ishikawa
- Department of BiomaterialsFaculty of Dental Science, Kyushu University 3‐1‐1 Maidashi, Higashi‐ku Fukuoka 812–8582 Japan
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25
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Pathological Mineralization: The Potential of Mineralomics. MATERIALS 2019; 12:ma12193126. [PMID: 31557841 PMCID: PMC6804219 DOI: 10.3390/ma12193126] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/11/2019] [Accepted: 09/19/2019] [Indexed: 12/11/2022]
Abstract
Pathological mineralization has been reported countless times in the literature and is a well-known phenomenon in the medical field for its connections to a wide range of diseases, including cancer, cardiovascular, and neurodegenerative diseases. The minerals involved in calcification, however, have not been directly studied as extensively as the organic components of each of the pathologies. These have been studied in isolation and, for most of them, physicochemical properties are hitherto not fully known. In a parallel development, materials science methods such as electron microscopy, spectroscopy, thermal analysis, and others have been used in biology mainly for the study of hard tissues and biomaterials and have only recently been incorporated in the study of other biological systems. This review connects a range of soft tissue diseases, including breast cancer, age-related macular degeneration, aortic valve stenosis, kidney stone diseases, and Fahr’s syndrome, all of which have been associated with mineralization processes. Furthermore, it describes how physicochemical material characterization methods have been used to provide new information on such pathologies. Here, we focus on diseases that are associated with calcium-composed minerals to discuss how understanding the properties of these minerals can provide new insights on their origins, considering that different conditions and biological features are required for each type of mineral to be formed. We show that mineralomics, or the study of the properties and roles of minerals, can provide information which will help to improve prevention methods against pathological mineral build-up, which in the cases of most of the diseases mentioned in this review, will ultimately lead to new prevention or treatment methods for the diseases. Importantly, this review aims to highlight that chemical composition alone cannot fully support conclusions drawn on the nature of these minerals.
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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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Li K, Dai F, Yan T, Xue Y, Zhang L, Han Y. Magnetic Silicium Hydroxyapatite Nanorods for Enhancing Osteoblast Response in Vitro and Biointegration in Vivo. ACS Biomater Sci Eng 2019; 5:2208-2221. [PMID: 33405773 DOI: 10.1021/acsbiomaterials.9b00073] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Osteoblast behavior playing an important role in the biointegration of the Ti implant with host bone in vivo can be regulated by surface properties and magnetic field. In order to endow the Ti surface with good osteogenesis activity, Si monosubstituted and Fe and Si cosubstituted hydroxyapatite (HAp) nanorods were fabricated on microporous TiO2 by microarc oxidation (MAO) followed with hydrothermal treatment (HT). The surface properties including microstructure, microroughness, hydrophilicity, ion release, magnetic property, cytocompatibility, and biointegration of substituted HAp nanorods were observed and evaluated, together with pure HAp nanorods and microarc oxidated (MAOed) TiO2 as controls. After being doped with Fe, MAOed TiO2 has no changes in phase composition and microroughness, whereas it displays weakly ferromagnetic behavior and can enhance osteoblast differentiation in vitro and formation of new bone in vivo, compared with the undoped one. The substituted HAp nanorods adhere firmly to TiO2 and have almost the same wettability and microroughness but additional Si, Fe, and/or Ca released into the medium, compared with pure HAp nanorods. Moreover, the cosubstituted HAp has a small ferromagnetic signal, while its saturation magnetization value is less than that of the MAOed doped with Fe. Compared to pure HA nanorods, the substituted HAp nanorods not only improve cell proliferation and differentiation in vitro, but also enhance the ability of bone integration in vivo, especially for the cosubstituted one, which should be ascribed to the combined effect of microstructure, magnetic property, and released ions.
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Affiliation(s)
- Kai Li
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Fang Dai
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Ting Yan
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Yang Xue
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Lan Zhang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, Shaanxi 710049, P. R. China
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Barba A, Diez-Escudero A, Espanol M, Bonany M, Sadowska JM, Guillem-Marti J, Öhman-Mägi C, Persson C, Manzanares MC, Franch J, Ginebra MP. Impact of Biomimicry in the Design of Osteoinductive Bone Substitutes: Nanoscale Matters. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8818-8830. [PMID: 30740968 DOI: 10.1021/acsami.8b20749] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bone apatite consists of carbonated calcium-deficient hydroxyapatite (CDHA) nanocrystals. Biomimetic routes allow fabricating synthetic bone grafts that mimic biological apatite. In this work, we explored the role of two distinctive features of biomimetic apatites, namely, nanocrystal morphology (plate vs needle-like crystals) and carbonate content, on the bone regeneration potential of CDHA scaffolds in an in vivo canine model. Both ectopic bone formation and scaffold degradation were drastically affected by the nanocrystal morphology after intramuscular implantation. Fine-CDHA foams with needle-like nanocrystals, comparable in size to bone mineral, showed a markedly higher osteoinductive potential and a superior degradation than chemically identical coarse-CDHA foams with larger plate-shaped crystals. These findings correlated well with the superior bone-healing capacity showed by the fine-CDHA scaffolds when implanted intraosseously. Moreover, carbonate doping of CDHA, which resulted in small plate-shaped nanocrystals, accelerated both the intrinsic osteoinduction and the bone healing capacity, and significantly increased the cell-mediated resorption. These results suggest that tuning the chemical composition and the nanostructural features may allow the material to enter the physiological bone remodeling cycle, promoting a tight synchronization between scaffold degradation and bone formation.
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Affiliation(s)
- Albert Barba
- Bone Healing Group, Small Animal Surgery Department, Veterinary School , Universitat Autònoma de Barcelona , Bellaterra, 08193 Barcelona , Spain
| | | | | | | | | | | | - Caroline Öhman-Mägi
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences , Uppsala University , 751 21 Uppsala , Sweden
| | - Cecilia Persson
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences , Uppsala University , 751 21 Uppsala , Sweden
| | - Maria-Cristina Manzanares
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics , Universitat de Barcelona , L'Hospitalet de Llobregat, 08907 Barcelona , Spain
| | - Jordi Franch
- Bone Healing Group, Small Animal Surgery Department, Veterinary School , Universitat Autònoma de Barcelona , Bellaterra, 08193 Barcelona , Spain
| | - Maria-Pau Ginebra
- Institute for Bioengineering of Catalonia (IBEC) , Barcelona Institute of Technology (BIST) , 08028 Barcelona , Spain
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Synthesis of Femur extracted hydroxyapatite reinforced nanocomposite and its application for Pb(II) ions abatement from aqueous phase. Int J Biol Macromol 2019; 122:667-676. [DOI: 10.1016/j.ijbiomac.2018.10.223] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 11/19/2022]
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Comparative Histomorphometric Analysis of Maxillary Sinus Augmentation With Deproteinized Bovine Bone and Demineralized Particulate Human Tooth Graft: An Experimental Study in Rabbits. IMPLANT DENT 2018; 27:324-331. [PMID: 29613862 DOI: 10.1097/id.0000000000000755] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE The aim of this animal study is to evaluate, by histomorphometric analysis, new bone formation in rabbit maxillary sinuses with Bio-Oss and demineralized particulate human tooth graft. MATERIALS AND METHODS Bilateral sinus augmentation procedures were performed in 8 adult male rabbits. After preparation of replaceable bony windows on the lateral wall of the nasal cavity with a piezoelectric surgical device, deproteinized bovine graft (Bio-Oss) was grafted in the new compartment of the maxillary sinus after elevation of the sinus membrane in the control group. In the experimental group, the demineralized human particulate tooth bone was grafted in the sinus. The replaceable bony window was repositioned over the bone graft in both groups. Animals were killed at 2 and 8 weeks after the surgical procedure. The augmented sinuses were evaluated by histomorphometric analysis using hematoxylin-eosin and Masson trichrome stains. RESULTS Histologically, new bone was revealed along the elevated sinus membrane and both bone grafts. In the control group, the new bone area at 8 weeks was not significantly different than that at 2 weeks. In the experimental group, the new bone area at 8 weeks was significantly greater than that at 2 weeks. CONCLUSION Significant higher new bone formation was revealed in the experimental group than in the control group.
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Development of Phosphatized Calcium Carbonate Biominerals as Bioactive Bone Graft Substitute Materials, Part I: Incorporation of Magnesium and Strontium Ions. J Funct Biomater 2018; 9:jfb9040069. [PMID: 30513829 PMCID: PMC6306735 DOI: 10.3390/jfb9040069] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/19/2018] [Accepted: 11/27/2018] [Indexed: 01/21/2023] Open
Abstract
Synthetic materials based on calcium phosphate (CaP) are frequently used as bone graft substitutes when natural bone grafts are not available or not suitable. Chemical similarity to bone guarantees the biocompatibility of synthetic CaP materials, whereas macroporosity enables their integration into the natural bone tissue. To restore optimum mechanical performance after the grafting procedure, gradual resorption of CaP implants and simultaneous replacement by natural bone is desirable. Mg and Sr ions released from implants support osteointegration by stimulating bone formation. Furthermore, Sr ions counteract osteoporotic bone loss and reduce the probability of related fractures. The present study aimed at developing porous Ca carbonate biominerals into novel CaP-based, bioactive bone implant materials. Macroporous Ca carbonate biominerals, specifically skeletons of corals (aragonite) and sea urchins (Mg-substituted calcite), were hydrothermally converted into pseudomorphic CaP materials with their natural porosity preserved. Sr ions were introduced to the mineral replacement reactions by temporarily stabilizing them in the hydrothermal phosphate solutions as Sr-EDTA complexes. In this reaction system, Na, Mg, and Sr ions favored the formation of correspondingly substituted β-tricalcium phosphate over hydroxyapatite. Upon dissolution, the incorporated functional ions became released, endowing these CaP materials with bioactive and potentially osteoporotic properties.
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Palaveniene A, Tamburaci S, Kimna C, Glambaite K, Baniukaitiene O, Tihminlioğlu F, Liesiene J. Osteoconductive 3D porous composite scaffold from regenerated cellulose and cuttlebone-derived hydroxyapatite. J Biomater Appl 2018; 33:876-890. [PMID: 30451067 DOI: 10.1177/0885328218811040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Recently, usage of marine-derived materials in biomedical field has come into prominence due to their promising characteristics such as biocompatibility, low immunogenicity and wide accessibility. Among these marine sources, cuttlebone has been used as a valuable component with its trace elemental composition in traditional medicine. Recent studies have focused on the use of cuttlebone as a bioactive agent for tissue engineering applications. In this study, hydroxyapatite particles were obtained by hydrothermal synthesis of cuttlebone and incorporated to cellulose scaffolds to fabricate an osteoconductive composite scaffold for bone regeneration. Elemental analysis of raw cuttlebone material from different coastal zones and cuttlebone-derived HAp showed that various macro-, micro- and trace elements - Ca, P, Na, Mg, Cu, Sr, Cl, K, S, Br, Fe and Zn were found in a very similar amount. Moreover, biologically unfavorable heavy metals, such as Ag, Cd, Pb or V, were not detected in any cuttlebone specimen. Carbonated hydroxyapatite particle was further synthesized from cuttlebone microparticles via hydrothermal treatment and used as a mineral filler for the preparation of cellulose-based composite scaffolds. Interconnected highly porous structure of the scaffolds was confirmed by micro-computed tomography. The mean pore size of the scaffolds was 510 µm with a porosity of 85%. The scaffolds were mechanically characterized with a compression test and cuttlebone-derived HAp incorporation enhanced the mechanical properties of cellulose scaffolds. In vitro cell culture studies indicated that MG-63 cells proliferated well on scaffolds. In addition, cuttlebone-derived hydroxyapatite significantly induced the ALP activity and osteocalcin secretion. Besides, HAp incorporation increased the surface mineralization which is the major step for bone tissue regeneration.
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Affiliation(s)
- Alisa Palaveniene
- 1 Department of Polymer Chemistry and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Sedef Tamburaci
- 2 Department of Chemical Engineering, Izmir Institute of Technology, Izmir, Turkey
| | - Ceren Kimna
- 2 Department of Chemical Engineering, Izmir Institute of Technology, Izmir, Turkey
| | - Kristina Glambaite
- 1 Department of Polymer Chemistry and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Odeta Baniukaitiene
- 1 Department of Polymer Chemistry and Technology, Kaunas University of Technology, Kaunas, Lithuania
| | - Funda Tihminlioğlu
- 2 Department of Chemical Engineering, Izmir Institute of Technology, Izmir, Turkey
| | - Jolanta Liesiene
- 1 Department of Polymer Chemistry and Technology, Kaunas University of Technology, Kaunas, Lithuania
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Ananth KP, Sun J, Bai J. An Innovative Approach to Manganese-Substituted Hydroxyapatite Coating on Zinc Oxide⁻Coated 316L SS for Implant Application. Int J Mol Sci 2018; 19:E2340. [PMID: 30096888 PMCID: PMC6122083 DOI: 10.3390/ijms19082340] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 01/06/2023] Open
Abstract
In this paper, the synthesis of porous manganese substituted hydroxyapatite (Mn-HAp) coating on zinc oxide (ZnO) coated stainless steel (316L SS) using the electrodeposition technique is reported. The structural, functional, morphological, and elemental analyses are characterized by various analytical techniques including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Results of electrochemical techniques such as cyclic polarization and impedance show that the Mn-HAp coating on ZnO coated 316L SS has the highest corrosion resistance in simulated body fluid (SBF) solution. Moreover, dissolution of metal ions was extremely reduced, as evaluated by inductively coupled plasma-atomic emission spectroscopy (ICP-AES). The adhesion and hardness of Mn-HAp/ZnO bilayer coatings have superior mechanical properties over individual coatings. Further, the biocompatibility of in vitro osteoblast attachment, cell viability, and live/dead assessment also confirmed the suitability of Mn-HAp/ZnO bilayer coating on 316L SS for orthopedic applications.
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Affiliation(s)
- Karuppasamy Prem Ananth
- Shenzhen Key Laboratory for Additive Manufacturing of High-Performance Materials, Shenzhen 518055, China.
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jinxing Sun
- Shenzhen Key Laboratory for Additive Manufacturing of High-Performance Materials, Shenzhen 518055, China.
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jiaming Bai
- Shenzhen Key Laboratory for Additive Manufacturing of High-Performance Materials, Shenzhen 518055, China.
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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Multiscale characterization of the mineral phase at skeletal sites of breast cancer metastasis. Proc Natl Acad Sci U S A 2017; 114:10542-10547. [PMID: 28923958 DOI: 10.1073/pnas.1708161114] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Skeletal metastases, the leading cause of death in advanced breast cancer patients, depend on tumor cell interactions with the mineralized bone extracellular matrix. Bone mineral is largely composed of hydroxyapatite (HA) nanocrystals with physicochemical properties that vary significantly by anatomical location, age, and pathology. However, it remains unclear whether bone regions typically targeted by metastatic breast cancer feature distinct HA materials properties. Here we combined high-resolution X-ray scattering analysis with large-area Raman imaging, backscattered electron microscopy, histopathology, and microcomputed tomography to characterize HA in mouse models of advanced breast cancer in relevant skeletal locations. The proximal tibial metaphysis served as a common metastatic site in our studies; we identified that in disease-free bones this skeletal region contained smaller and less-oriented HA nanocrystals relative to ones that constitute the diaphysis. We further observed that osteolytic bone metastasis led to a decrease in HA nanocrystal size and perfection in remnant metaphyseal trabecular bone. Interestingly, in a model of localized breast cancer, metaphyseal HA nanocrystals were also smaller and less perfect than in corresponding bone in disease-free controls. Collectively, these results suggest that skeletal sites prone to tumor cell dissemination contain less-mature HA (i.e., smaller, less-perfect, and less-oriented crystals) and that primary tumors can further increase HA immaturity even before secondary tumor formation, mimicking alterations present during tibial metastasis. Engineered tumor models recapitulating these spatiotemporal dynamics will permit assessing the functional relevance of the detected changes to the progression and treatment of breast cancer bone metastasis.
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Deymier AC, Nair AK, Depalle B, Qin Z, Arcot K, Drouet C, Yoder CH, Buehler MJ, Thomopoulos S, Genin GM, Pasteris JD. Protein-free formation of bone-like apatite: New insights into the key role of carbonation. Biomaterials 2017; 127:75-88. [PMID: 28279923 PMCID: PMC5415386 DOI: 10.1016/j.biomaterials.2017.02.029] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/21/2017] [Accepted: 02/26/2017] [Indexed: 11/20/2022]
Abstract
The nanometer-sized plate-like morphology of bone mineral is necessary for proper bone mechanics and physiology. However, mechanisms regulating the morphology of these mineral nanocrystals remain unclear. The dominant hypothesis attributes the size and shape regulation to organic-mineral interactions. Here, we present data supporting the hypothesis that physicochemical effects of carbonate integration within the apatite lattice control the morphology, size, and mechanics of bioapatite mineral crystals. Carbonated apatites synthesized in the absence of organic molecules presented plate-like morphologies and nanoscale crystallite dimensions. Experimentally-determined crystallite size, lattice spacing, solubility and atomic order were modified by carbonate concentration. Molecular dynamics (MD) simulations and density functional theory (DFT) calculations predicted changes in surface energy and elastic moduli with carbonate concentration. Combining these results with a scaling law predicted the experimentally observed scaling of size and energetics with carbonate concentration. The experiments and models describe a clear mechanism by which crystal dimensions are controlled by carbonate substitution. Furthermore, the results demonstrate that carbonate substitution is sufficient to drive the formation of bone-like crystallites. This new understanding points to pathways for biomimetic synthesis of novel, nanostructured biomaterials.
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Affiliation(s)
- Alix C Deymier
- Dept. of Orthopedic Surgery, Columbia University, New York, NY 10032, USA.
| | - Arun K Nair
- Dept. of Mechanical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | | | - Zhao Qin
- Dept. of Civil and Environmental Engineering, MIT, Boston, MA 02139, USA
| | - Kashyap Arcot
- Dept. of Mechanical Engineering and Materials Science, Washington University, St. Louis, MO 63130, USA
| | - Christophe Drouet
- CIRIMAT, Université de Toulouse, CNRS/UPS/INP, Ensiacet, Toulouse 31030, France
| | - Claude H Yoder
- Dept. of Chemistry, Franklin and Marshall College, Lancaster, PA 17604, USA
| | - Markus J Buehler
- Dept. of Civil and Environmental Engineering, MIT, Boston, MA 02139, USA
| | | | - Guy M Genin
- Dept. of Mechanical Engineering and Materials Science, Washington University, St. Louis, MO 63130, USA
| | - Jill D Pasteris
- Dept. of Earth and Planetary Sciences, Washington University, St Louis, MO 63130, USA.
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Seidel R, Blumer M, Zaslansky P, Knötel D, Huber DR, Weaver JC, Fratzl P, Omelon S, Bertinetti L, Dean MN. Ultrastructural, material and crystallographic description of endophytic masses – A possible damage response in shark and ray tessellated calcified cartilage. J Struct Biol 2017; 198:5-18. [DOI: 10.1016/j.jsb.2017.03.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 03/07/2017] [Accepted: 03/08/2017] [Indexed: 12/23/2022]
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Gomes S, Kaur A, Grenèche JM, Nedelec JM, Renaudin G. Atomic scale modeling of iron-doped biphasic calcium phosphate bioceramics. Acta Biomater 2017; 50:78-88. [PMID: 27965170 DOI: 10.1016/j.actbio.2016.12.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/02/2016] [Accepted: 12/06/2016] [Indexed: 12/31/2022]
Abstract
Biphasic calcium phosphates (BCPs) are bioceramics composed of hydroxyapatite (HAp, Ca10(PO4)6(OH)2) and beta-Tricalcium Phosphate (β-TCP, Ca3(PO4)2). Because their chemical and mineral composition closely resembles that of the mineral component of bone, they are potentially interesting candidates for bone repair surgery, and doping can advantageously be used to improve their biological behavior. However, it is important to describe the doping mechanism of BCP thoroughly in order to be able to master its synthesis and then to fully appraise the benefit of the doping process. In the present paper we describe the ferric doping mechanism: the crystallographic description of our samples, sintered at between 500°C and 1100°C, was provided by Rietveld analyses on X-ray powder diffraction, and the results were confirmed using X-ray absorption spectroscopy and 57Fe Mössbauer spectrometry. The mechanism is temperature-dependent, like the previously reported zinc doping mechanism. Doping was performed on the HAp phase, at high temperature only, by an insertion mechanism. The Fe3+ interstitial site is located in the HAp hexagonal channel, shifted from its centre to form a triangular three-fold coordination. At lower temperatures, the Fe3+ are located at the centre of the channel, forming linear two-fold coordinated O-Fe-O entities. The knowledge of the doping mechanism is a prerequisite for a correct synthesis of the targeted bioceramic with the adapted (Ca+Fe)/P ratio, and so to be able to correctly predict its potential iron release or magnetic properties. STATEMENT OF SIGNIFICANCE Biphasic calcium phosphates (BCPs) are bioceramics composed of hydroxyapatite (HAp, Ca10(PO4)6(OH)2) and beta-Tricalium Phosphate (β-TCP, Ca3(PO4)2). Because their chemical and mineral composition closely resembles that of the mineral component of bone, they are potentially interesting candidates for bone repair surgery. Doping can advantageously be used to improve their biological behaviors and/or magnetic properties; however, it is important to describe the doping mechanism of BCP thoroughly in order to fully appraise the benefit of the doping process. The present paper scrutinizes in detail the incorporation of ferric cation in order to correctly interpret the behavior of the iron-doped bioceramic in biological fluid. The temperature dependent mechanism has been fully described for the first time. And it clearly appears that temperature can be used to design the doping according to desired medical application: blood compatibility, remineralization, bactericidal or magnetic response.
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Synthesis of Superparamagnetic Hydroxyapatite Core-Shell Nanostructure by a Rapid Sol-Gel Route. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2017. [DOI: 10.1380/ejssnt.2017.121] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Moon JW, Sohn DS, Heo JU, Kim JS. Comparison of two kinds of bovine bone in maxillary sinus augmentation: a histomorphometric study. IMPLANT DENT 2016; 24:19-24. [PMID: 25621547 DOI: 10.1097/id.0000000000000187] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The purpose of this study was to compare the histomorphometric from sinus augmentation with calcium-phosphate nanocrystal-coated bovine bone (Biocera) and anorganic bovine bone matrix (Bio-Oss). MATERIALS AND METHODS Bilateral maxillary sinus augmentations were performed on 5 patients with delayed placement of implants. The lateral bony window was created using a piezoelectric saw, and the sinus membrane was elevated to make a new compartment. Bio-Oss was grafted in one sinus as the control group and Biocera was grafted in the opposite sinus as the test group. The bony window was repositioned over the bone graft. In all cases, samples were taken for biopsy at the time of implant placement, 6 to 8 months after the grafting procedure. Independent t tests were used to examine between-group differences. RESULTS None of the 5 patients had complications during healing period. Histomorphometrically, the Bio-Oss group showed 28.46% (±5.28%) of newly formed bone. Biocera group showed 29.94% (±8.72%) of newly formed bone. Newly formed bone along inner surface of repositioned bony window area showed more mature and dense bone structure than new bone formed along bone graft. CONCLUSIONS This study revealed that both bovine bone grafts were considered as suitable bone graft materials for maxillary sinus augmentation.
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Affiliation(s)
- Jee-Won Moon
- *Assistant Professor, Department of Dentistry and Oral and Maxillofacial Surgery, Catholic University Hospital of Daegu, Daegu, Korea. †Professor, Department of Dentistry and Oral and Maxillofacial Surgery, Catholic University Hospital of Daegu, Daegu, Korea. ‡Private Practice, Busan, Korea. §Private Practice, Jeonju, Korea
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Sun L, Danoux CB, Wang Q, Pereira D, Barata D, Zhang J, LaPointe V, Truckenmüller R, Bao C, Xu X, Habibovic P. Independent effects of the chemical and microstructural surface properties of polymer/ceramic composites on proliferation and osteogenic differentiation of human MSCs. Acta Biomater 2016; 42:364-377. [PMID: 27318269 DOI: 10.1016/j.actbio.2016.06.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 06/06/2016] [Accepted: 06/14/2016] [Indexed: 10/21/2022]
Abstract
UNLABELLED Within the general aim of finding affordable and sustainable regenerative solutions for damaged and diseased tissues and organs, significant efforts have been invested in developing synthetic alternatives to natural bone grafts, such as autografts. Calcium phosphate (CaP) ceramics are among widely used synthetic bone graft substitutes, but their mechanical properties and bone regenerative capacity are still outperformed by their natural counterparts. In order to improve the existing synthetic bone graft substitutes, it is imperative to understand the effects of their individual properties on a biological response, and to find a way to combine the desired properties into new, improved functional biomaterials. To this end, we studied the independent effects of the chemical composition and surface microstructure of a poly(lactic acid)/hydroxyapatite (PLA/HA) composite material on the proliferation and osteogenic differentiation of clinically relevant bone marrow-derived human mesenchymal stromal cells (hMSCs). While the molecular weight of the polymer and presence/absence of the ceramic phase were used as the chemical variables, a soft embossing technique was used to pattern the surfaces of all materials with either pits or pillars with identical microscale dimensions. The results indicated that, while cell morphology was affected by both the presence and availability of HA and by the surface microstructure, the effect of the latter parameter on cell proliferation was negligible. The osteogenic differentiation of hMSCs, and in particular the expression of bone morphogenetic protein 2 (BMP-2) and osteopontin (OP) were significantly enhanced when cells were cultured on the composite based on low-molecular-weight PLA, as compared to the high-molecular-weight PLA-based composite and the two pure polymers. The OP expression on the low-molecular-weight PLA-based composite was further enhanced when the surface was patterned with pits. Taken together, within this experimental set up, the individual effect of the chemistry, and in particular of the presence of CaP, was more pronounced than the individual effect of the surface microstructure, although their combined effects were, in some cases, synergistic. The approach presented here opens new routes to study the interactions of biomaterials with the biological environment in greater depths, which can serve as a starting point for developing biomaterials with improved bioactivity. STATEMENT OF SIGNIFICANCE The aim of the this study was to obtain insight into independent effects of the chemical composition and surface microstructure of a poly(lactic acid)/hydroxyapatite (PLA/HA) composite material on the morphology, proliferation and osteogenic differentiation of clinically relevant bone marrow-derived human mesenchymal stromal cells (hMSCs). While the need for synthetic alternatives for natural bone in bone regenerative strategies is rapidly increasing, the clinical performance of synthetic biomaterials needs to be further improved. To do this successfully, we believe that a better understanding of the relationship between a property of a material and a biological response is imperative. This study is a step forward in this direction, and we are therefore convinced that it will be of interest to the readers of Acta Biomaterialia.
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Medkov MA, Rudnev VS, Yarovaya TP, Steblevskaya NI, Nedozorov PM, Belobeletskaya MV, Grishchenko DN, Lukiyanchuk IV. Application of the extraction-pyrolysis method in formation of bioactive coatings. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2016. [DOI: 10.1134/s0040579516040199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ojanen X, Töyräs J, Inkinen SI, Malo MKH, Isaksson H, Jurvelin JS. Differences in acoustic impedance of fresh and embedded human trabecular bone samples-Scanning acoustic microscopy and numerical evaluation. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2016; 140:1931. [PMID: 27914413 DOI: 10.1121/1.4962347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Trabecular bone samples are traditionally embedded and polished for scanning acoustic microscopy (SAM). The effect of sample processing, including dehydration, on the acoustic impedance of bone is unknown. In this study, acoustic impedance of human trabecular bone samples (n = 8) was experimentally assessed before (fresh) and after embedding using SAM and two-dimensional (2-D) finite-difference time domain simulations. Fresh samples were polished with sandpapers of different grit (P1000, P2500, and P4000). Experimental results indicated that acoustic impedance of samples increased significantly after embedding [mean values 3.7 MRayl (fresh), 6.1 MRayl (embedded), p < 0.001]. After polishing with different papers, no significant changes in acoustic impedance were found, even though higher mean values were detected after polishing with finer (P2500 and P4000) papers. A linear correlation (r = 0.854, p < 0.05) was found between the acoustic impedance values of embedded and fresh bone samples polished using P2500 SiC paper. In numerical simulations dehydration increased the acoustic impedance of trabecular bone (38%), whereas changes in surface roughness of bone had a minor effect on the acoustic impedance (-1.56%/0.1 μm). Thereby, the numerical simulations corroborated the experimental findings. In conclusion, acoustic impedance measurement of fresh trabecular bone is possible and may provide realistic material values similar to those of living bone.
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Affiliation(s)
- Xiaowei Ojanen
- Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Juha Töyräs
- Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Satu I Inkinen
- Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Markus K H Malo
- Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, P.O. Box 118, 221 00 Lund, Sweden
| | - Jukka S Jurvelin
- Department of Applied Physics, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
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Mao KY, Hao LB, Tang PF, Wang Y, Wang JF, Lu SB, Liao SS, Cui FZ. Osteoblast MC3T3-E1 Culture on a Fast-setting Carbonated Hydroxyapatite Bone-like Material. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911505059040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Using ultra-fine grain technology, a fast-setting type of carbonated hydroxyapatite (CHA) material from Ca3(PO4)2·3H2O (ACP), CaCO3, Ca(H2PO4)2 (MCPA) and Na3PO4 was prepared. The ultra-fine particles (3 m) shortens the setting time, to form bone like material with 5.2wt% carbonation. Osteoblastic MC3T3-E1 cells were cultured with CHA material to observe cell adhesion, proliferation and differentiation. There were no obvious differences in adhesion and proliferation rate of MC3T3-E1 cells between the CHA and the control group. MC3T3-E1 cells on the surface of CHA observed by a scanning electron microscope (SEM). The alkaline phosphatase (ALP) activity of the cells on the CHA was higher than the control, and collagen I (COL 1) mRNA expressed on the CHA was also significantly higher than the control. This CHA bone material exhibited biocompatibility and osteo-conductive properties that are sought for bone repair and scaffolding for tissue engineering. *Author to whom correspondence should be addressed.
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Affiliation(s)
| | | | | | | | | | - S. B. Lu
- Department of Orthopedics, The Chinese PLA General Hospital, Beijing 100853, China
| | - S. S. Liao
- Department of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo 060-8586, Japan
| | - F. Z. Cui
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Kim RW, Kim JH, Moon SY. Effect of hydroxyapatite on critical-sized defect. Maxillofac Plast Reconstr Surg 2016; 38:26. [PMID: 27441185 PMCID: PMC4932121 DOI: 10.1186/s40902-016-0072-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/14/2016] [Indexed: 11/10/2022] Open
Abstract
Background Xenologous or synthetic graft materials are commonly used as an alternative for autografts for guided bone regeneration. The purpose of this study was to evaluate effectiveness of carbonate apatite on the critical-size bone defect of rat’s calvarium. Methods Thirty-six critical-size defects were created on 18 adult male Sprague-Dawley rat calvaria under general anesthesia. Calvarial bones were grinded with 8 mm in daimeter bilaterally and then filled with (1) no grafts (control, n = 10 defects), (2) bovine bone mineral (Bio-Oss®, Geistlich Pharma Ag. Swiss, n = 11 defects), and (3) hydroxyapatite (Bongros®, Bio@ Inc., Seongnam, Korea, n = 15 defects). At 4 and 8 weeks after surgery, the rats were sacrificed and all samples were processed for histological and histomorphometric analysis. Results At 4 weeks after surgery, group 3 (42.90 ± 9.33 %) showed a significant difference (p < 0.05) compared to the control (30.50 ± 6.05 %) and group 2 (28.53 ± 8.62 %). At 8 weeks after surgery, group 1 (50.21 ± 6.23 %), group 2 (54.12 ± 10.54 %), and group 3 (50.92 ± 6.05 %) showed no significant difference in the new bone formation. Conclusions Bongros®-HA was thought to be the available material for regenerating the new bone formation.
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Affiliation(s)
- Ryoe-Woon Kim
- Graduate School of Dentistry, Chosun University, Gwangju, South Korea
| | - Ji-Hyoung Kim
- Graduate School of Dentistry, Chosun University, Gwangju, South Korea
| | - Seong-Yong Moon
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, 309, Pilmun-daero, Dong-gu, 501-759 Gwangju, South Korea
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Pazzaglia UE, Congiu T, Basso P, Alessandri I, Cucca L, Raspanti M. The application of heat-deproteinization to the morphological study of cortical bone: A contribution to the knowledge of the osteonal structure. Microsc Res Tech 2016; 79:691-9. [DOI: 10.1002/jemt.22686] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 04/28/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Ugo E. Pazzaglia
- Department of Medical and Surgical Specialities; Radiological Sciences and Public Health, University of Brescia; Brescia Italy
| | - Terenzio Congiu
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Petra Basso
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
| | - Ivano Alessandri
- Department of Mechanical and Industrial Engineering; Chemistry for Technologies Lab, University of Brescia; Brescia Italy
| | - Lucia Cucca
- Department of Chemistry; University of Pavia; Pavia Italy
| | - Mario Raspanti
- Department of Surgical and Morphological Sciences; University of Insubria; Varese Italy
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Tahmasebi Birgani Z, Fennema E, Gijbels MJ, de Boer J, van Blitterswijk CA, Habibovic P. Stimulatory effect of cobalt ions incorporated into calcium phosphate coatings on neovascularization in an in vivo intramuscular model in goats. Acta Biomater 2016; 36:267-76. [PMID: 27000550 DOI: 10.1016/j.actbio.2016.03.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 02/02/2016] [Accepted: 03/17/2016] [Indexed: 01/07/2023]
Abstract
UNLABELLED Rapid vascularization of bone graft substitutes upon implantation is one of the most important challenges to overcome in order to achieve successful regeneration of large, critical-size bone defects. One strategy for stimulating vascularization during the regeneration process is to create a hypoxic microenvironment by either directly lowering the local oxygen tension, or by applying hypoxia-mimicking factors. Cells compensate for the hypoxic condition by releasing angiogenic factors leading to new blood vessel formation. In the present study, we explored the potential of cobalt ions (Co(2+)), known chemical mimickers of hypoxia, to stimulate vascularization within a bone graft substitute in vivo. To this end, Co(2+) ions were incorporated into calcium phosphate (CaPs) coatings deposited on poly(lactic acid) (PLA) particles with their effect on the formation of new blood vessels studied upon intramuscular implantation in goats. PLA particles and CaP-coated particles without Co(2+) ions served as controls. Pathological scoring of the inflammatory response following a 12-week implantation period showed no significant differences between the four types of materials. Based on histological and immunohistochemical analyses, both blood vessel area and number of blood vessels in CaP-coated PLA particles containing Co(2+) were higher than in the uncoated PLA particles and CaP-coated PLA particles without Co(2+). Analysis of blood vessel size distribution indicated abundant formation of small blood vessels in all the samples, while large blood vessels were predominantly found in PLA particles coated with CaP containing Co(2+) ions. The results of this study support the use of CaPs containing Co(2+) ions to enhance vascularization in vivo. STATEMENT OF SIGNIFICANCE In this work, we have investigated the potential of cobalt ions, incorporated into thin calcium phosphate (CaP) coatings that were deposited on particles of poly(lactic acid) (PLA), to induce neovascularization in vivo. Qualitative and quantitative histological and immunohistochemical analyses showed that both the number of blood vessels and the total blood vessel area were higher in CaP-coated PLA particles containing cobalt ions as compared to the uncoated PLA particles and CaP-coated PLA particles without the metallic additive. Furthermore, a wider distribution of blood vessel sizes, varying from very small to large vessels was specifically observed in samples containing cobalt ions. This in vivo study will significantly contribute to the existing knowledge on the use of bioinorganics, which are simple and inexpensive inorganic factors that can be used to control relevant biological process during tissue regeneration, such as vascularization. As such, we are convinced that this manuscript will be of interest to the readers of Acta Biomaterialia.
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Birgani ZT, Malhotra A, van Blitterswijk CA, Habibovic P. Human mesenchymal stromal cells response to biomimetic octacalcium phosphate containing strontium. J Biomed Mater Res A 2016; 104:1946-60. [PMID: 27012665 DOI: 10.1002/jbm.a.35725] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 03/15/2016] [Accepted: 03/21/2016] [Indexed: 11/10/2022]
Abstract
The incorporation of bioinorganics into synthetic biomaterials is a promising approach to improve the biological performance of bone graft substitutes, while still retaining their synthetic nature. Among these bioinorganics, strontium ions (Sr(2+) ) have reported enhanced bone formation, and a reduced risk of bone fractures. While previous results have been encouraging, more detailed studies are needed to further develop specific applications. This study demonstrates the effects of Sr(2+) on the osteogenic differentiation of human mesenchymal stromal cells (hMSCs) when introduced as either a dissolved salt, or incorporated into biomimetic calcium phosphate (CaP) coatings. Upon attachment, hMSCs seeded in the presence of higher Sr(2+) concentrations presented with a more elongated shape as compared to the controls without Sr(2+) . Both Sr(2+) as a dissolved salt in the medium, or incorporated into CaP coatings, positively influenced hMSC alkaline phosphatase (ALP) activity in a dose-dependent manner. At the mRNA level, the expression of osteogenic markers ALP, bone sialoprotein, bone morphogenetic protein 2, osteopontin, and osteoclacin were increased in the presence of Sr(2+) , independent of the delivery method. Overall, this study demonstrates the positive effects of strontium on the osteogenic differentiation of human MSCs, and supports the use of strontium-incorporated CaPs for bone regeneration applications. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1946-1960, 2016.
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Affiliation(s)
- Zeinab Tahmasebi Birgani
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Angad Malhotra
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands.,MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Clemens A van Blitterswijk
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands.,MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Pamela Habibovic
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands.,MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
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Ratnayake JTB, Mucalo M, Dias GJ. Substituted hydroxyapatites for bone regeneration: A review of current trends. J Biomed Mater Res B Appl Biomater 2016; 105:1285-1299. [DOI: 10.1002/jbm.b.33651] [Citation(s) in RCA: 177] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/15/2016] [Accepted: 02/22/2016] [Indexed: 01/03/2023]
Affiliation(s)
| | - Michael Mucalo
- Chemistry Department; School of Science, Faculty of Science and Engineering, University of Waikato; Hamilton New Zealand
| | - George J. Dias
- Department of Anatomy; School of Medical Sciences, University of Otago; Dunedin 9054 New Zealand
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Oftadeh R, Entezari V, Spörri G, Villa-Camacho JC, Krigbaum H, Strawich E, Graham L, Rey C, Chiu H, Müller R, Hashemi HN, Vaziri A, Nazarian A. Hierarchical analysis and multi-scale modelling of rat cortical and trabecular bone. J R Soc Interface 2016; 12:rsif.2015.0070. [PMID: 25808343 DOI: 10.1098/rsif.2015.0070] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The aim of this study was to explore the hierarchical arrangement of structural properties in cortical and trabecular bone and to determine a mathematical model that accurately predicts the tissue's mechanical properties as a function of these indices. By using a variety of analytical techniques, we were able to characterize the structural and compositional properties of cortical and trabecular bones, as well as to determine the suitable mathematical model to predict the tissue's mechanical properties using a continuum micromechanics approach. Our hierarchical analysis demonstrated that the differences between cortical and trabecular bone reside mainly at the micro- and ultrastructural levels. By gaining a better appreciation of the similarities and differences between the two bone types, we would be able to provide a better assessment and understanding of their individual roles, as well as their contribution to bone health overall.
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Affiliation(s)
- Ramin Oftadeh
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, USA
| | - Vahid Entezari
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Guy Spörri
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Juan C Villa-Camacho
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Henry Krigbaum
- Department of Orthopaedics, University of California, San Francisco, CA, USA
| | - Elsa Strawich
- Laboratory for the Study of Skeletal Disorders and Rehabilitation, Boston Children's Hospital, Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
| | - Lila Graham
- Laboratory for the Study of Skeletal Disorders and Rehabilitation, Boston Children's Hospital, Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, USA
| | - Christian Rey
- Centre Inter Universitaire de Recherche et d'Ingénierie des Matériaux, Ecole Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques, Toulouse, France
| | - Hank Chiu
- Department of Biomedical Engineering, University of Memphis, Memphis, TN, USA
| | - Ralph Müller
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Hamid Nayeb Hashemi
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, USA
| | - Ashkan Vaziri
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, USA
| | - Ara Nazarian
- Center for Advanced Orthopaedic Studies, Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Tahmasebi Birgani Z, van Blitterswijk CA, Habibovic P. Monolithic calcium phosphate/poly(lactic acid) composite versus calcium phosphate-coated poly(lactic acid) for support of osteogenic differentiation of human mesenchymal stromal cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:54. [PMID: 26787486 PMCID: PMC4718960 DOI: 10.1007/s10856-016-5666-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 01/05/2016] [Indexed: 05/04/2023]
Abstract
Calcium phosphates (CaPs), extensively used synthetic bone graft substitutes, are often combined with other materials with the aim to overcome issues related to poor mechanical properties of most CaP ceramics. Thin ceramic coatings on metallic implants and polymer-ceramic composites are examples of such hybrid materials. Both the properties of the CaP used and the method of incorporation into a hybrid structure are determinant for the bioactivity of the final construct. In the present study, a monolithic composite comprising nano-sized CaP and poly(lactic acid) (PLA) and a CaP-coated PLA were comparatively investigated for their ability to support proliferation and osteogenic differentiation of bone marrow-derived human mesenchymal stromal cells (hMSCs). Both, the PLA/CaP composite, produced using physical mixing and extrusion and CaP-coated PLA, resulting from a biomimetic coating process at near-physiological conditions, supported proliferation of hMSCs with highest rates at PLA/CaP composite. Enzymatic alkaline phosphatase activity as well as the mRNA expression of bone morphogenetic protein-2, osteopontin and osteocalcin were higher on the composite and coated polymer as compared to the PLA control, while no significant differences were observed between the two methods of combining CaP and PLA. The results of this study confirmed the importance of CaP in osteogenic differentiation while the exact properties and the method of incorporation into the hybrid material played a less prominent role.
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Affiliation(s)
- Zeinab Tahmasebi Birgani
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Clemens A van Blitterswijk
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Pamela Habibovic
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
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