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Li H, Ma L. A comprehensive review on the role of strontium in biodegradable metals. J Mater Chem B 2024. [PMID: 39072558 DOI: 10.1039/d4tb00779d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Biodegradable metals, including magnesium, iron, and zinc alloys, have attracted extensive attention due to their good biodegradability and biocompatibility. However, the mechanical properties and corrosion rates of most biodegradable metallic materials have not yet reached the ideal level required for clinical applications. Strontium, as an element of Group IIA in the periodic table of elements, has similar chemical and biological properties to calcium. It can promote bone tissue development and increase bone strength. In addition, strontium can also promote angiogenesis and facilitate the repair of infarcted heart activity. Thus, strontium is commonly used as one of the most alloying elements to improve the in vitro and in vivo properties of biodegradable metals. Besides, strontium is also widely used in various bioactive coatings to improve the comprehensive properties of biodegradable metals. This paper outlines the role of strontium in the human body and summarizes recent research and applications of strontium-containing biodegradable metallic materials. Finally, this paper also provides an outlook on the challenges faced in applying and researching strontium in biodegradable metals.
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Affiliation(s)
- Huafang Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
| | - Luqing Ma
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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2
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Topolska JM, Jagielska A, Motyl S, Kozub-Budzyń GA, Kępa L, Wagner B, Wątor K. Metal leakage from orthodontic appliances chemically alters enamel surface during experimental in vitro simulated treatment. Sci Rep 2024; 14:5412. [PMID: 38443566 PMCID: PMC10914722 DOI: 10.1038/s41598-024-56111-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/01/2024] [Indexed: 03/07/2024] Open
Abstract
Human enamel is composed mainly of apatite. This mineral of sorption properties is susceptible to chemical changes, which in turn affect its resistance to dissolution. This study aimed to investigate whether metal leakage from orthodontic appliances chemically alters the enamel surface during an in vitro simulated orthodontic treatment. Totally 107 human enamel samples were subjected to the simulation involving metal appliances and cyclic pH fluctuations over a period of 12 months in four complimentary experiments. The average concentrations and distribution of Fe, Cr, Ni, Ti and Cu within the enamel before and after the experiments were examined using ICP‒MS and LA‒ICP‒MS techniques. The samples exposed to the interaction with metal appliances exhibited a significant increase in average Fe, Cr and Ni (Kruskal-Wallis, p < 0.002) content in comparison to the control group. The outer layer, narrow fissures and points of contact with the metal components showed increased concentrations of Fe, Ti, Ni and Cr after simulated treatment, conversely to the enamel sealed with an adhesive system. It has been concluded that metal leakage from orthodontic appliances chemically alters enamel surface and microlesions during experimental in vitro simulated treatment.
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Affiliation(s)
- Justyna M Topolska
- Department of Mineralogy, Petrography and Geochemistry, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Krakow, 30-059, Krakow, Poland.
| | - Agata Jagielska
- Laboratory of Theoretical Aspects of Analytical Chemistry, Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, 02-089, Warsaw, Poland
| | - Sylwia Motyl
- Department of Oral and Maxillofacial Surgery, Rydygier Hospital, 31-826, Krakow, Poland
| | - Gabriela A Kozub-Budzyń
- Department of Geology of Mineral Deposits and Mining Geology, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Krakow, 30-059, Krakow, Poland
| | - Luiza Kępa
- Laboratory of Theoretical Aspects of Analytical Chemistry, Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, 02-089, Warsaw, Poland
| | - Barbara Wagner
- Laboratory of Theoretical Aspects of Analytical Chemistry, Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, 02-089, Warsaw, Poland
| | - Katarzyna Wątor
- Department of Hydrogeology and Engineering Geology, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Krakow, 30-059, Krakow, Poland
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3
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Kurzyk A, Szwed-Georgiou A, Pagacz J, Antosik A, Tymowicz-Grzyb P, Gerle A, Szterner P, Włodarczyk M, Płociński P, Urbaniak MM, Rudnicka K, Biernat M. Calcination and ion substitution improve physicochemical and biological properties of nanohydroxyapatite for bone tissue engineering applications. Sci Rep 2023; 13:15384. [PMID: 37717040 PMCID: PMC10505220 DOI: 10.1038/s41598-023-42271-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/07/2023] [Indexed: 09/18/2023] Open
Abstract
Nanohydroxyapatite (nanoHAP) is widely used in bone regeneration, but there is a need to enhance its properties to provide stimuli for cell commitment and osteoconduction. This study examines the effect of calcination at 1200 °C on the physicochemical and biological properties of nanoHAP doped with magnesium (Mg2+), strontium (Sr2+), and zinc (Zn2+). A synergistic effect of dual modification on nanoHAP biological properties was investigated. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), BET analysis, Fourier-transform spectroscopy, and thermal analysis methods. Furthermore, ion release tests and in vitro biological characterization, including cytocompatibility, reactive oxygen species production, osteoconductive potential and cell proliferation, were performed. The XRD results indicate that the ion substitution of nanoHAP has no effect on the apatite structure, and after calcination, β-tricalcium phosphate (β-TCP) is formed as an additional phase. SEM analysis showed that calcination induces the agglomeration of particles and changes in surface morphology. A decrease in the specific surface area and in the ion release rate was observed. Combining calcination and nanoHAP ion modification is beneficial for cell proliferation and osteoblast response and provide additional stimuli for cell commitment in bone regeneration.
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Affiliation(s)
- Agata Kurzyk
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland.
| | - Aleksandra Szwed-Georgiou
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland
| | - Joanna Pagacz
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland
| | - Agnieszka Antosik
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland
| | - Paulina Tymowicz-Grzyb
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland
| | - Anna Gerle
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland
| | - Piotr Szterner
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland
| | - Marcin Włodarczyk
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland
| | - Przemysław Płociński
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland
| | - Mateusz M Urbaniak
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland
- Bio-Med-Chem Doctoral School, University of Lodz and Lodz Institutes of the Polish Academy of Sciences, 12/16 Banacha St., 90-237, Lodz, Poland
| | - Karolina Rudnicka
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha St., 90-237, Lodz, Poland
| | - Monika Biernat
- Łukasiewicz Research Network, Institute of Ceramics and Building Materials, Cementowa 8 St., 31-983, Kraków, Poland
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4
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Paramasivan M, Sampath Kumar TS, Kanniyappan H, Muthuvijayan V, Chandra TS. Biomimetic ion substituted and Co-substituted hydroxyapatite nanoparticle synthesis using Serratia Marcescens. Sci Rep 2023; 13:4513. [PMID: 36934131 PMCID: PMC10024725 DOI: 10.1038/s41598-023-30996-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/06/2023] [Indexed: 03/20/2023] Open
Abstract
Biomimicry is becoming deep-rooted as part of bioceramics owing to its numerous functional advantages. Naturally occurring hydroxyapatite (HA) apart from primary nano structures are also characterised by various ionic substitutions. The ease of accommodating such key elements into the HA lattice is known to enhance bone healing properties of bioceramics. In this work, hydroxyapatite synthesized via biomimetic approach was substituted with individual as well as multiple cations for potential applications in bone repair. Ion substitutions of Sr, Mg and Zn was carried out on HA for the first time by using Serratia grown in a defined biomineralization medium. The individual ions of varying concentration substituted in Serratia HA (SHA) (Sr SHA, Mg SHA and Zn SHA) were analysed for crystallinity, functional groups, morphology and crystal size. All three showed decreased crystallinity, phase purity, large agglomerated aggregates and needle-shaped morphologies. Fourier transform infrared spectroscopy (FTIR) spectra indicated increased carbonate content of 5.8% resembling that of natural bone. Additionally, the reduced O-H intensities clearly portrayed disruption of HA lattice and subsequent ion-substitution. The novelty of this study lies primarily in investigating the co-substitution of a combination of 1% Sr, Zn and Mg in SHA and establishing the associated change in bone parameters. Scanning electron microscope (SEM) and transmission electron microscope (TEM) images clearly illustrated uniform nano-sized agglomerates of average dimensions of 20-50 nm length and 8-15 nm width for Sr SHA; 10-40 nm length and 8-10 nm width for both Zn SHA and Mg SHA and 40-70 nm length and 4-10 nm width in the case of 1% Sr, Zn, Mg SHA. In both individual as well as co-substitutions, significant peak shifts were not observed possibly due to the lower concentrations. However, cell volumes increased in both cases due to presence of Sr2+ validating its dominant integration into the SHA lattice. Rich trace ion deposition was presented by energy dispersive X-ray spectroscopy (EDS) and quantified using inductively coupled plasma optical emission spectrometer (ICP-OES). In vitro cytotoxicity studies in three cell lines viz. NIH/3T3 fibroblast cells, MG-63 osteosarcoma cells and RAW 264.7 macrophages showed more than 90% cell viability proving the biocompatible nature of 1% Sr, Zn and Mg in SHA. Microbial biomineralization by Serratia produced nanocrystals of HA that mimicked "bone-like apatite" as evidenced by pure phase, carbonated groups, reduced crystallinity, nano agglomerates, variations in cell parameters, rich ion deposition and non-toxic nature. Therefore ion-substituted and co-substituted biomineralized nano SHA appears to be a suitable candidate for applications in biomedicine addressing bone injuries and aiding regeneration as a result of its characteristics close to that of the human bone.
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Affiliation(s)
- Mareeswari Paramasivan
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India
- Medical Materials Laboratory, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India
| | - T S Sampath Kumar
- Medical Materials Laboratory, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
| | - Hemalatha Kanniyappan
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India
| | - Vignesh Muthuvijayan
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India
| | - T S Chandra
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
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5
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Effect of doping cation on the adsorption properties of hydroxyapatite to uranium. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2022.123687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Calcium Phosphate-Based Biomaterials for Bone Repair. J Funct Biomater 2022; 13:jfb13040187. [PMID: 36278657 PMCID: PMC9589993 DOI: 10.3390/jfb13040187] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022] Open
Abstract
Traumatic, tumoral, and infectious bone defects are common in clinics, and create a big burden on patient's families and society. Calcium phosphate (CaP)-based biomaterials have superior properties and have been widely used for bone defect repair, due to their similarities to the inorganic components of human bones. The biological performance of CaPs, as a determining factor for their applications, are dependent on their physicochemical properties. Hydroxyapatite (HAP) as the most thermally stable crystalline phase of CaP is mostly used in the form of ceramics or composites scaffolds with polymers. Nanostructured CaPs with large surface areas are suitable for drug/gene delivery systems. Additionally, CaP scaffolds with hierarchical nano-/microstructures have demonstrated excellent ability in promoting bone regeneration. This review focuses on the relationships and interactions between the physicochemical/biological properties of CaP biomaterials and their species, sizes, and morphologies in bone regeneration, including synthesis strategies, structure control, biological behavior, and the mechanisms of CaP in promoting osteogenesis. This review will be helpful for scientists and engineers to further understand CaP-based biomaterials (CaPs), and be useful in developing new high-performance biomaterials for bone repair.
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7
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Enhanced anti-biofilm and biocompatibility of Zn and Mg substituted β-tricalcium phosphate/functionalized multiwalled carbon nanotube composites towards A. baumannii and Methicillin-Resistant Staphylococcus aureus, and MG-63 cells. Int J Pharm 2022; 627:122248. [PMID: 36181921 DOI: 10.1016/j.ijpharm.2022.122248] [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: 05/24/2022] [Revised: 09/15/2022] [Accepted: 09/23/2022] [Indexed: 11/21/2022]
Abstract
In this work, Zn and Mg substituted β-tricalcium phosphate/functionalized multiwalled carbon nanotube (f-MWCNT) nanocomposites were prepared by the co-precipitation method. The structural, vibrational, morphological and biological properties of the prepared nanocomposites were studied. The structural study revealed that the increase of Zn concentration shifts the β-tricalcium phosphate planes towards higher angle. Morphological analysis confirmed the formation of hexagonal-shaped particles after substitution of Zn. The particle size of the nanoparticles decreased with the increase of Zn concentration. XPS analysis clearly showed the presence of Zn, Mg, P, Ca, O and C. The Zn (5%) rich nanocomposites have better antibiofilm activity compared to 2% of zinc substituted composite. Also, it has been proven that the prepared nanocomposites have the ability to enhance the bioactivity of commercial antibiotics by means of a decrease in drug resistance. Finally, this study acted as a pioneer to improve drug efficiency and reduced the biofilm formation of certain medically important bacteria. The in-vitro cell viability and anti-biofilm results of zinc (5%) rich nanocomposite confirmed that prepared nanocomposite has biocompatible and enhanced anti-biofilm property, which will be beneficial candidate for biomedical applications.
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Colboc H, Moguelet P, Letavernier E, Frochot V, Bernaudin JF, Weil R, Rouzière S, Senet P, Bachmeyer C, Laporte N, Lucas I, Descamps V, Amode R, Brunet-Possenti F, Kluger N, Deschamps L, Dubois A, Reguer S, Somogyi A, Medjoubi K, Refregiers M, Daudon M, Bazin D. Pathologies related to abnormal deposits in dermatology: a physico-chemical approach. CR CHIM 2022. [DOI: 10.5802/crchim.153] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Yuan SJ, Qi XY, Zhang H, Yuan L, Huang J. Doping gadolinium versus lanthanum into hydroxyapatite particles for better biocompatibility in bone marrow stem cells. Chem Biol Interact 2021; 346:109579. [PMID: 34274335 DOI: 10.1016/j.cbi.2021.109579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Lanthanide ions (Ln3+) doped hydroxyapatite (HAP) particles are well established in biomedical areas. Although Ln elements are closely located in the periodic table and have plenty of similar characteristics, the minor differences in the effective ionic radii could cause alterations in the physicochemical and biological properties of HAP substitutes. The present study synthesized lanthanum-(La-) and gadolinium-(Gd-) doped HAP particles (La-HAP and Gd-HAP). And the effects of two types of particles on bone marrow stem cells (BMSCs) viability were also measured and compared in vitro. The results indicated that the Gd-HAP adsorbed more serum proteins from culture media and inhibited the new layer of apatite formation on its surface when comparing to La-HAP with a similar crystalline structure, particle size, and Zeta potential. These surface modifications can significantly reduce the cell adhesion of Gd-HAP, simultaneously decreasing the Gd-HAP particle uptake efficiency. Moreover, the cell viability of Gd-HAP remained higher than that of La-HAP in culture periods. We concluded that a slight variation in the effective ionic radii between Gd3+ and La3+ could alter the adsorption of serum proteins on the particles' surface, modulating subsequent cellular responses. The present work provides an interesting view that Gd-HAP is endowed with better cellular biocompatibility than La-HAP.
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Affiliation(s)
- Shuai-Jun Yuan
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, PR China
| | - Xin-Yi Qi
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, PR China
| | - He Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, PR China
| | - Lan Yuan
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, PR China
| | - Jian Huang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, PR China.
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10
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Pedrosa MCG, dos Anjos SA, Mavropoulos E, Bernardo PL, Granjeiro JM, Rossi AM, Dias ML. Structure and biological compatibility of polycaprolactone/zinc-hydroxyapatite electrospun nanofibers for tissue regeneration. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211022448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although guided tissue regeneration (GTR) is a useful tool for regenerating lost tissue as bone and periodontal tissue, a biocompatible membrane capable of regenerating large defects has yet to be discovered. This study aimed to characterize the physicochemical properties and biological compatibility of polycaprolactone (PCL) membranes associated with or without nanostructured hydroxyapatite (HA) (PCL/HA) and Zn-doped HA (PCL/ZnHA), produced by electrospinning. PCL, PCL/HA, and PCL/ZnHA were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC). Nanoparticles of HA or ZnHA were homogeneously distributed and dispersed inside the PCL fibers, which decreased the fiber thickness. At 1 wt% of HA or ZnHA, these nanoparticles acted as nucleating agents. Moreover, HA and ZnHA increased the onset of the degradation temperature and thermal stability of the electrospun membrane. All tested membranes showed no cytotoxicity and allowed murine pre-osteoblast adhesion and spreading; however, higher concentrations of PCL/ZnHA showed less cells and an irregular cell morphology compared to PCL and PCL/HA. This article presents a cytocompatible, electrospun, nanocomposite membrane with a novel morphology and physicochemical properties that make it eligible as a scaffold for GTR.
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Affiliation(s)
- Maria Clara Guimaraes Pedrosa
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Elena Mavropoulos
- Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
| | | | - José Mauro Granjeiro
- Directory of Life Sciences Applied Metrology, Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO), Duque de Caxias, RJ, Brazil
| | | | - Marcos Lopes Dias
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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11
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Mocanu A, Cadar O, Frangopol PT, Petean I, Tomoaia G, Paltinean GA, Racz CP, Horovitz O, Tomoaia-Cotisel M. Ion release from hydroxyapatite and substituted hydroxyapatites in different immersion liquids: in vitro experiments and theoretical modelling study. ROYAL SOCIETY OPEN SCIENCE 2021; 8:201785. [PMID: 33614097 PMCID: PMC7890514 DOI: 10.1098/rsos.201785] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/20/2020] [Indexed: 05/06/2023]
Abstract
Multi-substituted hydroxyapatites (ms-HAPs) are currently gaining more consideration owing to their multifunctional properties and biomimetic structure, owning thus an enhanced biological potential in orthopaedic and dental applications. In this study, nano-hydroxyapatite (HAP) substituted with multiple cations (Sr2+, Mg2+ and Zn2+) for Ca2+ and anion ( Si O 4 4 - ) for P O 4 3 - and OH-, specifically HAPc-5%Sr and HAPc-10%Sr (where HAPc is HAP-1.5%Mg-0.2%Zn-0.2%Si), both lyophilized non-calcined and lyophilized calcined, were evaluated for their in vitro ions release. These nanomaterials were characterized by scanning electron microscopy, field emission-scanning electron microscopy and energy-dispersive X-ray, as well as by atomic force microscope images and by surface specific areas and porosity. Further, the release of cations and of phosphate anions were assessed from nano-HAP and ms-HAPs, both in water and in simulated body fluid, in static and simulated dynamic conditions, using inductively coupled plasma optical emission spectrometry. The release profiles were analysed and the influence of experimental conditions was determined for each of the six nanomaterials and for various periods of time. The pH of the samples soaked in the immersion liquids was also measured. The ion release mechanism was theoretically investigated using the Korsmeyer-Peppas model. The results indicated a mechanism principally based on diffusion and dissolution, with possible contribution of ion exchange. The surface of ms-HAP nanoparticles is more susceptible to dissolution into immersion liquids owing to the lattice strain provoked by simultaneous multi-substitution in HAP structure. According to the findings, it is rational to suggest that both materials HAPc-5%Sr and HAPc-10%Sr are bioactive and can be potential candidates in bone tissue regeneration.
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Affiliation(s)
- Aurora Mocanu
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
| | - Oana Cadar
- INCDO INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania
| | - Petre T. Frangopol
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
| | - Ioan Petean
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
| | - Gheorghe Tomoaia
- Department of Orthopedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, 400132 Cluj-Napoca, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
| | - Gertrud-Alexandra Paltinean
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
| | - Csaba Pal Racz
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
| | - Ossi Horovitz
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
| | - Maria Tomoaia-Cotisel
- Faculty of Chemistry and Chemical Engineering, Physical Chemistry Centre, Chemical Engineering Department, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Street, 400028 Cluj-Napoca, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
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12
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Effect of curcumin sorbed selenite substituted hydroxyapatite on osteosarcoma cells: An in vitro study. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Lira RM, Sartoretto SC, da Silva Gouveia Pedrosa C, Calasans-Maia MD, Leite PE, Granjeiro JM. Is THP-1 viability affected by the crystallinity of nanostructured carbonated hydroxyapatites? J Biomed Mater Res A 2020; 109:1266-1274. [PMID: 33047463 DOI: 10.1002/jbm.a.37120] [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: 02/07/2020] [Revised: 10/04/2020] [Accepted: 10/09/2020] [Indexed: 11/06/2022]
Abstract
In daily clinical practice, there is a notable variety of synthetic bone substitute, with various resorption rates, different chemical and structural characteristics that influence on bone regeneration and are not suitable for every clinical use. New biomaterials based on nanotechnology have been developed to be bioabsorbable as new bone is formed. This study intends to evaluate THP-1 cell viability when exposed to extracts of unsintered nanostructured carbonated hydroxyapatite (cHA) microspheres processed at 5 and 37°C compared to sintered hydroxyapatite processed at 90°C. cHA shows, in previous studies, biocompatibility, and better bioabsorption rates, consequently, improve the deposition of new bone and tissue repair. The results demonstrated that the tested biomaterials did not activate inflammatory role through THP-1 cells and did not affect activated macrophages independently of their crystallinities, suggesting their safety and biocompatibility. These results are of fundamental importance for the advancement of research on smart materials, especially in what controls the effect of nanostructured cHA microspheres in the biological environment, seems to be a promising biomaterial in clinical application on regenerative medicine.
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Affiliation(s)
- Renata Moraes Lira
- Graduate Program in Dentistry, Fluminense Federal University, Niterói, Brazil
| | - Suelen Cristina Sartoretto
- Graduate Program in Dentistry, Fluminense Federal University, Niterói, Brazil.,Graduate Program in Dentistry, Veiga de Almeida University, Rio de Janeiro, Brazil.,Oral Surgery Department, Iguaçu University, Nova Iguaçu, Brazil
| | | | | | - Paulo Emílio Leite
- Laboratory of Ultrastructure and Cellular Biology Hertha Meyer, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - José Mauro Granjeiro
- Bioengineering Laboratory, National Institute of Metrology, Quality and Technology, Duque de Caxias, Brazil.,School of Dentistry, Fluminense Federal University, Niterói, Brazil
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14
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Chandran L, Am B. Apatite matrix substituted with biologically essential rare earth elements as an artificial hard tissue substitute: Systematic physicochemical and biological evaluation. J Biomed Mater Res A 2020; 109:821-828. [PMID: 33463034 DOI: 10.1002/jbm.a.37069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 01/28/2020] [Accepted: 02/04/2020] [Indexed: 01/07/2023]
Abstract
Hydroxyapatite (HAP) forms the main inorganic component of natural bone and hence has been widely use in implant applications. Ionic substitutions in apatite also gains enormous interest during the recent years due to the crucial role played by these elements in the biological process. In this context, the least investigated elements namely lanthanum (La3+ ) and praseodymium (Pr3+ ) have been selected as a potential substitutions in apatite. The results from the analytical techniques confirm the phase purity of the HAP and its ability holds the substitutions at its lattice. Morphological analysis unveils the presence of agglomerated spheroids notwithstanding the ion concentration of substituents. EDX spectra affirm the presence of La and Pr alongside the determined Ca/P atomic ratio of 1.67. La3+ and Pr3+ presence envisaged the good antibacterial efficiency against the tested microbes and further demonstrated the biocompatibility nature from the cytotoxicity analysis.
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Affiliation(s)
- Likha Chandran
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, India
| | - Ballamurugan Am
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, India
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15
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Santos GG, Nunes VLC, Marinho SMOC, Santos SRA, Rossi AM, Miguel FB. Biological behavior of magnesium-substituted hydroxyapatite during bone repair. BRAZ J BIOL 2020; 81:53-61. [PMID: 32074171 DOI: 10.1590/1519-6984.217769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 10/27/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to analyze the biological behavior and osteogenic potential of magnesium (Mg) substituted hydroxyapatite (HA) microspheres, implanted in a critical bone defect, considering that this ion is of great clinical interest, since it is closely associated with homeostasis and bone mineralization. For the purpose of this study, 30 rats were used to compose three experimental groups: GI - bone defect filled with HA microspheres; GII - bone defect filled with HA microspheres replaced with Mg; GIII - empty bone defect; evaluated at biological points of 15 and 45 days. The histological results, at 15 days, showed, in all the groups, a discrete chronic inflammatory infiltrate; biomaterials intact and surrounded by connective tissue; and bone neoformation restricted to the borders. At 45 days, in the GI and GII groups, an inflammatory response of discrete granulomatous chronic type was observed, and in the GIII there was a scarce presence of mononuclear inflammatory cells; in GI and GII, the microspheres were seen to be either intact or fragmented, surrounded by fibrous connective tissue rich in blood vessels; and discrete bone neoformation near the edges and surrounding some microspheres. In GIII, the mineralization was limited to the borders and the remaining area was filled by fibrous connective tissue. It was concluded that the biomaterials were biocompatible and osteoconductive, and the percentage of Mg used as replacement ion in the HA did not favor a greater bone neoformation in relation to the HA without the metal.
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Affiliation(s)
- G G Santos
- Laboratório de Ciências e Tecnologias da Saúde - LaCTS, Centro de Ciências da Saúde - CCS, Universidade Federal do Recôncavo da Bahia - UFRB, Av. Carlos Amaral, 1015, Cajueiro, CEP 44574-490, Santo Antônio de Jesus, BA, Brasil.,Laboratório de Bioengenharia Tecidual e Biomateriais - LBTB, Instituto de Ciências da Saúde - ICS, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon, s/n, Vale do Canela, CEP 40110-100, Salvador, BA, Brasil
| | - V L C Nunes
- Faculdade de Medicina - FAMED, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon, s/n, Canela, CEP 40110-903, Salvador, BA, Brasil.,Escola Bahiana de Medicina e Saúde Pública - EBMSP, Av. Dom João VI, 275, Brotas, CEP 40290-000, Salvador, BA, Brasil
| | - S M O C Marinho
- Laboratório de Ciências e Tecnologias da Saúde - LaCTS, Centro de Ciências da Saúde - CCS, Universidade Federal do Recôncavo da Bahia - UFRB, Av. Carlos Amaral, 1015, Cajueiro, CEP 44574-490, Santo Antônio de Jesus, BA, Brasil
| | - S R A Santos
- Laboratório de Biomateriais - LABIOMAT, Centro Brasileiro de Pesquisas Físicas - CBPF, Ministério da Ciência, Tecnologia e Inovação - MCTI, Rua Dr. Xavier Sigaud, 150, Urca, CEP 22290-180, Rio de Janeiro, RJ, Brasil
| | - A M Rossi
- Laboratório de Biomateriais - LABIOMAT, Centro Brasileiro de Pesquisas Físicas - CBPF, Ministério da Ciência, Tecnologia e Inovação - MCTI, Rua Dr. Xavier Sigaud, 150, Urca, CEP 22290-180, Rio de Janeiro, RJ, Brasil
| | - F B Miguel
- Laboratório de Ciências e Tecnologias da Saúde - LaCTS, Centro de Ciências da Saúde - CCS, Universidade Federal do Recôncavo da Bahia - UFRB, Av. Carlos Amaral, 1015, Cajueiro, CEP 44574-490, Santo Antônio de Jesus, BA, Brasil
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16
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Ullah I, Siddiqui MA, Liu H, Kolawole SK, Zhang J, Zhang S, Ren L, Yang K. Mechanical, Biological, and Antibacterial Characteristics of Plasma-Sprayed (Sr,Zn) Substituted Hydroxyapatite Coating. ACS Biomater Sci Eng 2020; 6:1355-1366. [PMID: 33455366 DOI: 10.1021/acsbiomaterials.9b01396] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Implant-related infections are a major concern in total joint prostheses, occurring up to 3% in operations. In this work, 5% Zn2+ was added in HA to offset bacterial activity and 5% Sr2+ was also incorporated as a binary dopant to reduce the cytotoxic effect of Zn2+. The nanosized HA powder was synthesized by the hydrothermal method and then heat-treated at 600 °C for 4 h. The heat-treated powder was plasma-sprayed on a titanium alloy Ti-6Al-4V substrate. The addition of the dopant did not significantly influence the physical and mechanical properties of the coating. However, the cytocompatibility, antimicrobial, and contact-angle properties statistically enhanced. Moreover, the (Sr,Zn)-HA coating was post-heat treated at 500 and 600 °C for 3 h. X-ray diffraction confirmed that after heat treatment phase purity and crystallinity increased and residual stress decreased. Mechanical stability was evaluated by adhesive bond strength, and the results showed that after heat-treatment bonding strength increased from 26.81 ± 2.93 to 29.84 ± 3.62 and 34.66 ± 2.57 MPa, at 500 and 600 °C, respectively. Similar to the mechanical property, antibacterial activities and biological functions are also significantly improved. More interestingly, it was also observed that the Zn2+ ions released from the coating depend on Ca2+, P, and Sr2+ ions while Ca2+, P, and Sr2+ ions relied on heat treatment temperatures. However, (Sr,Zn)-HA coating at 600 °C demonstrates cytotoxic effects on MC3T3-E1 cells, characterized by poor cellular morphology on the coating surface and ultimately, cell death. The doping of Sr2+ with Zn2+, therefore, can offset the cytotoxic effects and enhanced biological performance. All of the outcomes of this study signify that (Sr,Zn)-HA coating heat-treated at 500 °C showed not only excellent mechanical and biological performance but also enhanced the antibacterial properties.
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Affiliation(s)
- Ihsan Ullah
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China 230026
| | - Muhammad Ali Siddiqui
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China 230026
| | - Hui Liu
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China 230026
| | - Sharafadeen Kunle Kolawole
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China 230026
| | - Ji Zhang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Shuyuan Zhang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Ling Ren
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
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17
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Padmanabhan VP, Kulandaivelu R, Venkatachalam V, Veerla SC, Mohammad F, Al-Lohedan HA, Oh WC, Schirhagl R, Obulapuram PK, Hoque ME, Sagadevan S. Influence of sonication on the physicochemical and biological characteristics of selenium-substituted hydroxyapatites. NEW J CHEM 2020. [DOI: 10.1039/d0nj03771k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Selenium-doped hydroxyapatite composite formed by the sonication technique investigated to have superior properties that are specifically advantageous in the tissue engineering, growth, and regeneration sector.
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Affiliation(s)
| | | | | | - Sarath Chandra Veerla
- Department of Humanities and Basic Sciences
- Godavari Institute of Engineering and Technology (Autonomous)
- Rajahmundry 533296
- India
| | - Faruq Mohammad
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh
- Kingdom of Saudi Arabia
| | - Hamad A. Al-Lohedan
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh
- Kingdom of Saudi Arabia
| | - Won Chun Oh
- Department of Advanced Materials Science and Engineering
- Hanseo University
- Chungnam 356-706
- Korea
| | - Romana Schirhagl
- Groningen University
- University Medical Center Groningen
- 9713 AW Groningen
- The Netherlands
| | - Prasanna Kumar Obulapuram
- Wits Advanced Drug Delivery Platform Research Unit
- Department of Pharmacy and Pharmacology
- School of Therapeutic Sciences
- Faculty of Health Sciences
- University of the Witwatersrand
| | - Md Enamul Hoque
- Department of Biomedical Engineering
- Military Institute of Science and Technology (MIST)
- Dhaka
- Bangladesh
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre
- University of Malaya
- Kuala Lumpur
- Malaysia
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18
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Predoi D, Iconaru SL, Predoi MV, Stan GE, Buton N. Synthesis, Characterization, and Antimicrobial Activity of Magnesium-Doped Hydroxyapatite Suspensions. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1295. [PMID: 31514280 PMCID: PMC6781056 DOI: 10.3390/nano9091295] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 01/01/2023]
Abstract
Obtaining nanoscale materials has allowed for the miniaturization of components, which has led to the possibility of achieving more efficient devices with faster functions and much lower costs. While hydroxyapatite [HAp, Ca10(PO4)6(OH)2] is considered the most widely used material for medical applications in orthopedics, dentistry, and general surgery, the magnesium (Mg) is viewed as a promising biodegradable and biocompatible implant material. Furthermore, Mg is regarded as a strong candidate for developing medical implants due to its biocompatibility and antimicrobial properties against gram-positive and gram-negative bacteria. For this study, magnesium-doped hydroxyapatite (Ca10-xMgx (PO4)6 (OH)2, xMg = 0.1), 10MgHAp, suspensions were successfully obtained by an adapted and simple chemical co-precipitation method. The information regarding the stability of the nanosized 10MgHAp particles suspension obtained by ζ-potential analysis were confirmed for the first time by a non-destructive ultrasound-based technique. Structural and morphological studies of synthesized 10MgHAp were conducted by X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy in attenuated total reflectance (ATR) mode and scanning electron microscopy (SEM). The XRD analysis of the 10MgHAp samples confirmed that a single crystalline phase associated to HAp with an average grain size about 93.3 nm was obtained. The FTIR-ATR spectra revealed that the 10MgHAp sample presented broader IR bands with less visible peaks when compared to a well-crystallized pure HAp. The SEM results evidenced uniform MgHAp nanoparticles with spherical shape. The antimicrobial activity of the 10MgHAp suspension against gram-positive strains (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212), gram-negative strains (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853), as well as a fungal strain (Candida albicans ATCC 90029) were evaluated.
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Affiliation(s)
- Daniela Predoi
- National Institute of Materials Physics, 405A Atomistilor Street, P.O. Box MG7, 077125 Magurele, Romania.
| | - Simona Liliana Iconaru
- National Institute of Materials Physics, 405A Atomistilor Street, P.O. Box MG7, 077125 Magurele, Romania.
| | - Mihai Valentin Predoi
- University Politehnica of Bucharest, BN 002, 313 Splaiul Independentei, Sector 6, 10023 Bucharest, Romania.
| | - George E Stan
- National Institute of Materials Physics, 405A Atomistilor Street, P.O. Box MG7, 077125 Magurele, Romania.
| | - Nicolas Buton
- HORIBA Jobin Yvon S.A.S., 6-18, Rue du Canal, 91165 Longjumeau CEDEX, France.
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19
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Radha G, Venkatesan B, Rajashree P, Vellaichamy E, Balakumar S. Insights into the apatite mineralization potential of thermally processed nanocrystalline Ca10−xFex(PO4)6(OH)2. NEW J CHEM 2019. [DOI: 10.1039/c8nj03579b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermal treatment of Ca10−xFex(PO4)6(OH)2 at different temperatures had an effect on the mineralization potential under non-cellular and cellular conditions by releasing its bioactive ions at optimal or excessive levels.
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Affiliation(s)
- G. Radha
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600025
- India
| | | | - P. Rajashree
- Centre for Advanced Study in Crystallography and Biophysics
- University of Madras
- Chennai – 600025
- India
| | | | - S. Balakumar
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600025
- India
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20
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Tite T, Popa AC, Balescu LM, Bogdan IM, Pasuk I, Ferreira JMF, Stan GE. Cationic Substitutions in Hydroxyapatite: Current Status of the Derived Biofunctional Effects and Their In Vitro Interrogation Methods. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2081. [PMID: 30355975 PMCID: PMC6266948 DOI: 10.3390/ma11112081] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/13/2018] [Accepted: 10/19/2018] [Indexed: 12/13/2022]
Abstract
High-performance bioceramics are required for preventing failure and prolonging the life-time of bone grafting scaffolds and osseous implants. The proper identification and development of materials with extended functionalities addressing socio-economic needs and health problems constitute important and critical steps at the heart of clinical research. Recent findings in the realm of ion-substituted hydroxyapatite (HA) could pave the road towards significant developments in biomedicine, with an emphasis on a new generation of orthopaedic and dentistry applications, since such bioceramics are able to mimic the structural, compositional and mechanical properties of the bone mineral phase. In fact, the fascinating ability of the HA crystalline lattice to allow for the substitution of calcium ions with a plethora of cationic species has been widely explored in the recent period, with consequent modifications of its physical and chemical features, as well as its functional mechanical and in vitro and in vivo biological performance. A comprehensive inventory of the progresses achieved so far is both opportune and of paramount importance, in order to not only gather and summarize information, but to also allow fellow researchers to compare with ease and filter the best solutions for the cation substitution of HA-based materials and enable the development of multi-functional biomedical designs. The review surveys preparation and synthesis methods, pinpoints all the explored cation dopants, and discloses the full application range of substituted HA. Special attention is dedicated to the antimicrobial efficiency spectrum and cytotoxic trade-off concentration values for various cell lines, highlighting new prophylactic routes for the prevention of implant failure. Importantly, the current in vitro biological tests (widely employed to unveil the biological performance of HA-based materials), and their ability to mimic the in vivo biological interactions, are also critically assessed. Future perspectives are discussed, and a series of recommendations are underlined.
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Affiliation(s)
- Teddy Tite
- National Institute of Materials Physics, RO-077125 Magurele, Romania.
| | - Adrian-Claudiu Popa
- National Institute of Materials Physics, RO-077125 Magurele, Romania.
- Army Centre for Medical Research, RO-010195 Bucharest, Romania.
| | | | | | - Iuliana Pasuk
- National Institute of Materials Physics, RO-077125 Magurele, Romania.
| | - José M F Ferreira
- Department of Materials and Ceramics Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - George E Stan
- National Institute of Materials Physics, RO-077125 Magurele, Romania.
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21
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Sahmani S, Saber-Samandari S, Shahali M, Joneidi Yekta H, Aghadavoudi F, Montazeran AH, Aghdam MM, Khandan A. Mechanical and biological performance of axially loaded novel bio-nanocomposite sandwich plate-type implant coated by biological polymer thin film. J Mech Behav Biomed Mater 2018; 88:238-250. [PMID: 30193182 DOI: 10.1016/j.jmbbm.2018.08.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/15/2018] [Accepted: 08/19/2018] [Indexed: 12/19/2022]
Abstract
Post-surgical infection is one of the essential problems in bone scaffolds that is usually treated with antibiotics. This issue may be related to the poor blood supply for bone tissue due to high concentrations of drug. In the current study, the effect of zinc oxide (ZnO) nanoparticles on the antibacterial behavior of the nanocrystalline hydroxyapatite (n-HA) scaffolds coated by gelatin-ibuprofen (GN-IBO) is evaluated. To this end, the bio-nanocomposite scaffolds are fabricated via the space holder technique and then characterized with the aid of X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The compressive strength, fracture toughness, porosity, elastic modulus as the mechanical properties, and the apatite formation, biodegradation, drug release and wettability beside the roughness as the biological properties are predicted. The obtained experimental results indicate that the bio-nanocomposite scaffolds containing 10 wt% ZnO has suitable mechanical and biological properties. After that, an analytical model is developed to predict the nonlinear instability and vibration responses of an axially loaded sandwich plate-type implants made of the fabricated n-HA-ZnO bio-nanocomposites coated by GN-IBO thin film corresponding to various weight fractions of ZnO nanoparticles. It is found that ZnO peaks in the positions of 2θ are equal to 31.6°, 33.6°, 34°, 46.4°, and 62°, which represent the crystalline characteristics. Also, it is revealed that through addition of ZnO nanoparticles, the hardness and elastic modulus as well as the bone formation and biodegradation rate of the bio-nanocomposite scaffold enhance, while its drug release in the phosphate buffer solution detected with UV spectrum reduces. It is found that by increasing the ZnO weight fraction, the critical axial buckling load of the sandwich bio-nanocomposite implant enhances, and it buckles at lower axial shortening. However, it is seen that for higher value of wt% ZnO, its influence on the critical buckling load decreases.
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Affiliation(s)
- S Sahmani
- Mechanical Rotating Equipment Department, Niroo Research Institute (NRI), Tehran 14665-517, Iran
| | - S Saber-Samandari
- New Technologies Research Center, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - M Shahali
- Department of Quality Control, Research and Production Complex, Pasteur Institute of Iran, Tehran, Iran
| | - H Joneidi Yekta
- New Technologies Research Center, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - F Aghadavoudi
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran
| | - A H Montazeran
- New Technologies Research Center, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - M M Aghdam
- Department of Mechanical Engineering, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - A Khandan
- New Technologies Research Center, Amirkabir University of Technology, Tehran 15875-4413, Iran.
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22
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Hydroxyapatite coated poly(lactic acid) microparticles with copper ion doping prepared via the Pickering emulsion route. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4364-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Alshemary AZ, Engin Pazarceviren A, Tezcaner A, Evis Z. Fe3+
/SeO42−
dual doped nano hydroxyapatite: A novel material for biomedical applications. J Biomed Mater Res B Appl Biomater 2017; 106:340-352. [DOI: 10.1002/jbm.b.33838] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 12/01/2016] [Accepted: 12/05/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Ammar Z. Alshemary
- Department of Biomedical Engineering; Faculty of Engineering, Karabuk University; 78050 Karabuk Turkey
| | | | - Aysen Tezcaner
- Department of Engineering Sciences; Middle East Technical University; Ankara 06800 Turkey
| | - Zafer Evis
- Department of Engineering Sciences; Middle East Technical University; Ankara 06800 Turkey
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24
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Marques CF, Matos AC, Ribeiro IAC, Gonçalves LM, Bettencourt A, Ferreira JMF. Insights on the properties of levofloxacin-adsorbed Sr- and Mg-doped calcium phosphate powders. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:123. [PMID: 27300006 DOI: 10.1007/s10856-016-5733-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 05/27/2016] [Indexed: 06/06/2023]
Abstract
Several types of biodegradable materials have been investigated for the treatment of osteomyelitis. Calcium phosphate (CaP) ceramics are among the most performing materials due to their resemblance to human hard tissues in terms of mineralogical composition, and proven ability to adsorb and deliver a number of drugs. This research work was intended to study the suitability of modified CaP powders loaded with a fluoroquinolone as drug delivery systems for osteomyelitis treatment. Levofloxacin (LEV) was chosen due to the well-recognized anti-staphylococcal activity and adequate penetration into osteoarticular tissues. Substituted CaP powders (5 mol% Sr(2+) or 5 mol% Mg(2+)) were synthesised through aqueous precipitation. The obtained powders were characterised by X-ray diffraction, SEM and FTIR analysis. The X-ray diffraction patterns confirmed the presence of HA and β-tricalcium phosphates (β-TCP) phases in doped compositions, especially in the case of Mg-doped system. The fixation of LEV at the surface of the particles occurred only by physisorption. Both the in vitro microbiological susceptibility, against Staphylococcus spp, and biocompatibility of LEV-loaded CaP powders have not been compromised.
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Affiliation(s)
- Catarina F Marques
- Department of Materials and Ceramics Engineering, CICECO, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Ana C Matos
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Isabel A C Ribeiro
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Lídia M Gonçalves
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Ana Bettencourt
- Research Institute for Medicines (iMed. ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - José M F Ferreira
- Department of Materials and Ceramics Engineering, CICECO, University of Aveiro, 3810-193, Aveiro, Portugal
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25
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Calasans-Maia MD, Melo BRD, Alves ATNN, Resende RFDB, Louro RS, Sartoretto SC, Granjeiro JM, Alves GG. Cytocompatibility and biocompatibility of nanostructured carbonated hydroxyapatite spheres for bone repair. J Appl Oral Sci 2016; 23:599-608. [PMID: 26814461 PMCID: PMC4716697 DOI: 10.1590/1678-775720150122] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 09/01/2015] [Indexed: 12/17/2022] Open
Abstract
Objective The aim of this study was to investigate the in vitro and in vivo biological responses to nanostructured carbonated hydroxyapatite/calcium alginate (CHA) microspheres used for alveolar bone repair, compared to sintered hydroxyapatite (HA). Material and Methods The maxillary central incisors of 45 Wistar rats were extracted, and the dental sockets were filled with HA, CHA, and blood clot (control group) (n=5/period/group). After 7, 21 and 42 days, the samples of bone with the biomaterials were obtained for histological and histomorphometric analysis, and the plasma levels of RANKL and OPG were determined via immunoassay. Statistical analysis was performed by Two-Way ANOVA with post-hoc Tukey test at 95% level of significance. Results The CHA and HA microspheres were cytocompatible with both human and murine cells on an in vitro assay. Histological analysis showed the time-dependent increase of newly formed bone in control group characterized by an intense osteoblast activity. In HA and CHA groups, the presence of a slight granulation reaction around the spheres was observed after seven days, which was reduced by the 42nd day. A considerable amount of newly formed bone was observed surrounding the CHA spheres and the biomaterials particles at 42-day time point compared with HA. Histomorphometric analysis showed a significant increase of newly formed bone in CHA group compared with HA after 21 and 42 days from surgery, moreover, CHA showed almost 2-fold greater biosorption than HA at 42 days (two-way ANOVA, p<0.05) indicating greater biosorption. An increase in the RANKL/OPG ratio was observed in the CHA group on the 7th day. Conclusion CHA spheres were osteoconductive and presented earlier biosorption, inducing early increases in the levels of proteins involved in resorption.
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Affiliation(s)
- Mônica Diuana Calasans-Maia
- Departamento de Cirurgia Oral, Faculdade de Odontologia, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | | | | | | | - Rafael Seabra Louro
- Departamento de Cirurgia Oral, Faculdade de Odontologia, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | | | - José Mauro Granjeiro
- Instituto Nacional de Metrologia, Qualidade e Tecnologia, Duque de Caxias, Rio de Janeiro, Brazil
| | - Gutemberg Gomes Alves
- Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niteroi, RJ, Brazil
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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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Gafurov M, Biktagirov T, Mamin G, Klimashina E, Putlayev V, Kuznetsova L, Orlinskii S. The Interplay of manganese and nitrate in hydroxyapatite nanoparticles as revealed by pulsed EPR and DFT. Phys Chem Chem Phys 2015; 17:20331-7. [PMID: 26190281 DOI: 10.1039/c5cp01986a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The interplay of oppositely charged substitutions in the structure of hydroxyapatite (HAp) nanopowders is investigated on the atomic level by pulsed electron paramagnetic resonance (EPR) technique and ab initio density functional theory calculations. Benefits of EPR to determine Mn(2+) ions in nano-HAp samples are demonstrated. A simple approach based on the measurements of electron spin relaxation times allowed observing the strong influence of fast-relaxing Mn(2+) ions on the relaxation characteristics of the nitrate ions (NO3(-)/NO3(2-)) incorporated in trace amounts. Based on the results of ab initio calculations, we show the propensity of Mn(2+) and NO3(-)/NO3(2-) to associate within the HAp crystal lattice. This could have a direct impact on the functional properties of the material especially to resorption and ion exchange. Furthermore, such an effect can increase a propensity of undesired impurities to incorporate into the doped nanocrystals.
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Affiliation(s)
- Marat Gafurov
- Kazan Federal University, Institute of Physics, 420008 Kazan, Russian Federation.
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28
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Matos AC, Marques CF, Pinto RV, Ribeiro IA, Gonçalves LM, Vaz MA, Ferreira J, Almeida AJ, Bettencourt AF. Novel doped calcium phosphate-PMMA bone cement composites as levofloxacin delivery systems. Int J Pharm 2015; 490:200-8. [DOI: 10.1016/j.ijpharm.2015.05.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 05/12/2015] [Accepted: 05/13/2015] [Indexed: 11/26/2022]
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A solid-state NMR study of selenium substitution into nanocrystalline hydroxyapatite. Int J Mol Sci 2015; 16:11452-64. [PMID: 25997001 PMCID: PMC4463710 DOI: 10.3390/ijms160511452] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 04/09/2015] [Accepted: 04/29/2015] [Indexed: 11/16/2022] Open
Abstract
The substitution of selenium oxyanions in the hydroxyapatite structure was examined using multinuclear solid-state resonance spectroscopy (ssNMR). The study was supported by powder X-ray diffractometry (PXRD) and wavelength dispersion X-ray fluorescence (WD-XRF). Samples of pure hydroxyapatite (HA300) and selenate (HA300-1.2SeO4) or selenite (HA300-1.2SeO3) substituted hydroxyapatites were synthesized using the standard wet method and heated at 300 °C to remove loosely bonded water. PXRD data showed that all samples are single-phase, nanocrystalline hydroxyapatite. The incorporation of selenite and selenate ions affected the lattice constants. In selenium-containing samples the concentration of Se was very similar and amounted to 9.55% and 9.64%, for HA300-1.2SeO4 and HA300-1.2SeO3, respectively. PXRD and ssNMR data showed that the selenite doping significantly decreases the crystallite size and crystallinity degree. 31P and 1H NMR experiments demonstrated the developed surface hydrated layer in all samples, especially in HA300-1.2SeO3. 1H NMR studies showed the dehydroxylation of HA during the selenium oxyanions substitution and the existence of hydrogen bonding in structural hydroxyl group channels. 1H→77Se cross polarization NMR experiments indicated that selenites and selenates are located in the crystal lattice and on the crystal surface.
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Schumacher M, Gelinsky M. Strontium modified calcium phosphate cements – approaches towards targeted stimulation of bone turnover. J Mater Chem B 2015; 3:4626-4640. [DOI: 10.1039/c5tb00654f] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Strontium modified calcium phosphate cements can target local bone turnover by stimulating osteoblast proliferation and differentiation (1) as well as bone mineralisation (2), reducing osteoclastogenesis (3) and resorption activity, increase osteoclast apoptosis (4) and affect osteoblast/osteoclast paracrine signalling (5).
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Affiliation(s)
- Matthias Schumacher
- Centre for Translational Bone, Joint and Soft Tissue Research
- Medical Faculty and University Hospital
- Technische Universität Dresden
- Dresden
- Germany
| | - Michael Gelinsky
- Centre for Translational Bone, Joint and Soft Tissue Research
- Medical Faculty and University Hospital
- Technische Universität Dresden
- Dresden
- Germany
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31
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Short-term in vivo evaluation of zinc-containing calcium phosphate using a normalized procedure. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:309-19. [DOI: 10.1016/j.msec.2014.04.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 04/04/2014] [Accepted: 04/23/2014] [Indexed: 11/22/2022]
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Comparative In Vivo Study of Biocompatibility of Apatites Incorporated with 1% Zinc or Lead Ions versus Stoichiometric Hydroxyapatite. ACTA ACUST UNITED AC 2014. [DOI: 10.4028/www.scientific.net/jbbte.19.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyapatite is the main ceramic material that has being used in bone repair, although its physico-chemical and in vivo behavior should be better understood. A method to improve the biocompatibility of HA is the substitution of calcium with divalent cations which enhance mechanic resistance and can modulate inflammatory response against implanted material. In this study we analyzed the biocompatibility of HA doped with one per cent of Zn2+ or Pb2+. The first one has being described as an inflammation modulator and the second would be a model for chronic toxicity assay. Biocompatibility of the both materials was studied in vivo following the ISO 10993-6 standard. HA cylinders (ZnHA, PbHA and stoichiometric HA as positive control) were implanted into subcutaneous tissue of 45 Balb-c mice and after 1, 3 and 9 weeks the animals were euthanized (5 for each experimental condition). Necropsies of the skin containing reactional tissue were removed, fixed in 10% formaldehyde and followed the histological processing for paraffin embedding and staining with Hematoxylin-Eosine and Picrosirius red. Microscopic analysis showed for all groups moderate inflammatory response, decreasing throughout the experimental periods, with ZnHA group showing more intense response. Similar presence of macrophages, fibrosis and angiogenesis were observed among the groups. Thereby, we can conclude that ZnHA and PbHA are biocompatible and not bioresorbable, being the ZnHA potentially indicated as bone graft. Detailed studies are required to better understand the role of PbHA as chronic model for lead toxicity.
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Tomoaia G, Mocanu A, Vida-Simiti I, Jumate N, Bobos LD, Soritau O, Tomoaia-Cotisel M. Silicon effect on the composition and structure of nanocalcium phosphates: In vitro biocompatibility to human osteoblasts. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 37:37-47. [PMID: 24582220 DOI: 10.1016/j.msec.2013.12.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 11/25/2013] [Accepted: 12/17/2013] [Indexed: 10/25/2022]
Abstract
Nanostructured calcium phosphates, such as nanohydroxyapatite (HAP) and HAP with silicon content (HAP-Si) of 0.47wt.% (1% SiO2), 2.34wt.% (5% SiO2) and 4.67wt.% (10% SiO2) in the final product, were synthesized by aqueous precipitation, freeze dried and then calcined at 650, 950 and 1150°C. The obtained materials were investigated by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and atomic force microscopy (AFM) imaging. From the analysis of the XRD patterns, the HAP and β-tricalcium phosphate (β-TCP) phases were identified and their amounts in the samples were estimated. The size of HAP and β-TCP crystallites was estimated to be in the nanocrystalline domain. FTIR spectra showed the presence of characteristic vibrations for P-O, H-O and Si-O groups and their modification with Si content and calcination temperature. TEM, SEM and AFM images also revealed the morphology of the particles and of their aggregates. These materials have been used to manufacture scaffolds which were tested for their influence on adhesion and proliferation of cells, in human osteoblast culture, considering their further use in bone reconstruction. It was found that an appropriate addition of silicon in nanocalcium phosphate scaffolds leads to an enhanced adhesion and proliferation of cells in osteoblasts in vitro.
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Affiliation(s)
- Gheorghe Tomoaia
- Orthophedics and Traumatology Department, Iuliu Hatieganu University of Medicine and Pharmacy, 47 Traian Mosoiu Str., Cluj-Napoca 400132, Romania
| | - Aurora Mocanu
- Department of Chemical Engineering, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Str., Cluj-Napoca 400028, Romania
| | - Ioan Vida-Simiti
- Department of Materials Science and Engineering, Technical University of Cluj-Napoca, 103-105 Muncii Bd., Cluj-Napoca 400641, Romania
| | - Nicolae Jumate
- Department of Materials Science and Engineering, Technical University of Cluj-Napoca, 103-105 Muncii Bd., Cluj-Napoca 400641, Romania
| | - Liviu-Dorel Bobos
- Department of Chemical Engineering, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Str., Cluj-Napoca 400028, Romania
| | - Olga Soritau
- Oncology Institute of Cluj-Napoca, 34-36 Republicii Str., 400015 Cluj-Napoca, Romania
| | - Maria Tomoaia-Cotisel
- Department of Chemical Engineering, Babes-Bolyai University of Cluj-Napoca, 11 Arany J. Str., Cluj-Napoca 400028, Romania.
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Tavares DDS, Castro LDO, Soares GDDA, Alves GG, Granjeiro JM. Synthesis and cytotoxicity evaluation of granular magnesium substituted β-tricalcium phosphate. J Appl Oral Sci 2013; 21:37-42. [PMID: 23559110 PMCID: PMC3881814 DOI: 10.1590/1678-7757201302138] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 01/03/2013] [Indexed: 11/21/2022] Open
Abstract
Objective: The aim of this study was to produce dense granules of tricalcium phosphate
(β-TCP) and magnesium (Mg) substituted β-TCP, also known as β-TCMP (Mg/Ca=0.15
mol), in order to evaluate the impact of Mg incorporation on the physicochemical
parameters and in vitro biocompatibility of this novel
material. Material and Methods: The materials were characterized using X-ray diffraction (XRD), infrared
spectroscopy (FTIR), electron microscopy and inductively coupled plasma (ICP).
Biocompatibility was assayed according to ISO 10993-12:2007 and 7405:2008, by two
different tests of cell survival and integrity (XTT and CVDE). Results: The XRD profile presented the main peaks of β-TCP (JCPDS 090169) and β-TCMP (JCPDS
130404). The characteristic absorption bands of TCP were also identified by FTIR.
The ICP results of β-TCMP granules extract showed a precipitation of calcium and
release of Mg into the culture medium. Regarding the cytotoxicity assays, β-TCMP
dense granules did not significantly affect the mitochondrial activity and
relative cell density in relation to β-TCP dense granules, despite the release of
Mg from granules into the cell culture medium. Conclusion: β-TCMP granules were successfully produced and were able to release Mg into media
without cytotoxicity, indicating the suitability of this promising material for
further biological studies on its adequacy for bone therapy.
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Resende RFB, Fernandes GVO, Santos SRA, Rossi AM, Lima I, Granjeiro JM, Calasans-Maia MD. Long-term biocompatibility evaluation of 0.5 % zinc containing hydroxyapatite in rabbits. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1455-1463. [PMID: 23606217 DOI: 10.1007/s10856-013-4865-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Accepted: 01/18/2013] [Indexed: 06/02/2023]
Abstract
This study investigates the long-term biocompatibility of 0.5 % zinc-containing hydroxyapatite compared with hydroxyapatite. Spheres (425 < ∅ < 550) of both materials were produced by extrusion of ceramic slurry in calcium chloride and characterized by FTIR, XRD, XRF and SEM. Fifteen White New Zealand rabbits were submitted to general anesthesia, and an perforation (2 mm), was made in each tibia, one for zinc-containing hydroxyapatite sphere implantation and one for hydroxyapatite sphere implantation. After 26, 52 and 78 weeks, the animals were euthanized, and the fragment containing the biomaterial was harvested. A 30-50 μm section was obtained for histological analysis in bright field and polarized light. SEM images revealed similar morphologies between the tested biomaterials. Histological analysis showed that there was no difference between the test groups. The morphometric analysis, however, indicates that there was a greater absorption. The materials are biocompatible, promote osteogenesis and that the zinc-containing hydroxyapatite microspheres were absorbed more quickly.
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Affiliation(s)
- Rodrigo F B Resende
- Cell and Molecular Biology Department, Biology Institute, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil.
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36
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Mavropoulos E, Hausen M, Costa AM, Alves G, Mello A, Ospina CA, Mir M, Granjeiro JM, Rossi AM. The impact of the RGD peptide on osteoblast adhesion and spreading on zinc-substituted hydroxyapatite surface. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1271-1283. [PMID: 23494616 DOI: 10.1007/s10856-013-4851-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 01/16/2013] [Indexed: 06/01/2023]
Abstract
The incorporation of zinc into the hydroxyapatite structure (ZnHA) has been proposed to stimulate osteoblast proliferation and differentiation. Another approach to improve cell adhesion and hydroxyapatite (HA) performance is coating HA with adhesive proteins or peptides such as RGD (arginine-glycine-aspartic acid). The present study investigated the adhesion of murine osteoblastic cells to non-sintered zinc-substituted HA disks before and after the adsorption of RGD. The incorporation of zinc into the HA structure simultaneously changed the topography of disk's surface on the nanoscale and the disk's surface chemistry. Fluorescence microscopy analyses using RGD conjugated to a fluorescein derivative demonstrated that ZnHA adsorbed higher amounts of RGD than non-substituted HA. Zinc incorporation into HA promoted cell adhesion and spreading, but no differences in the cell density, adhesion and spreading were detected when RGD was adsorbed onto ZnHA. The pre-treatment of disks with fetal bovine serum (FBS) greatly increased the cell density and cell surface area for all RGD-free groups, overcoming the positive contribution of zinc to cell adhesion. The presence of RGD on the ZnHA surface impaired the effects of FBS pre-treatment possibly due to competition between FBS proteins and RGD for surface binding sites.
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Affiliation(s)
- Elena Mavropoulos
- Brazilian Center for Physics Research, Xavier Sigaud 150, Urca, RJ 22290-180, Brazil.
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37
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Ignjatović N, Ajduković Z, Savić V, Najman S, Mihailović D, Vasiljević P, Stojanović Z, Uskoković V, Uskoković D. Nanoparticles of cobalt-substituted hydroxyapatite in regeneration of mandibular osteoporotic bones. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:343-354. [PMID: 23090835 PMCID: PMC3568249 DOI: 10.1007/s10856-012-4793-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 10/12/2012] [Indexed: 06/01/2023]
Abstract
Indications exist that paramagnetic calcium phosphates may be able to promote regeneration of bone faster than their regular, diamagnetic counterparts. In this study, analyzed was the influence of paramagnetic cobalt-substituted hydroxyapatite nanoparticles on osteoporotic alveolar bone regeneration in rats. Simultaneously, biocompatibility of the material was tested in vitro, on osteoblastic MC3T3-E1 and epithelial Caco-2 cells in culture. The material was shown to be biocompatible and nontoxic when added to epithelial monolayers in vitro, while it caused a substantial decrease in the cell viability as well as deformation of the cytoskeleton and cell morphology when incubated with the osteoblastic cells. In the course of 6 months after the implantation of the material containing different amounts of cobalt, ranging from 5 to 12 wt%, in the osteoporotic alveolar bone of the lower jaw, the following parameters were investigated: histopathological parameters, alkaline phosphatase and alveolar bone density. The best result in terms of osteoporotic bone tissue regeneration was observed for hydroxyapatite nanoparticles with the largest content of cobalt ions. The histological analysis showed a high level of reparatory ability of the nanoparticulate material implanted in the bone defect, paralleled by a corresponding increase in the alveolar bone density. The combined effect of growth factors from autologous plasma admixed to cobalt-substituted hydroxyapatite was furthermore shown to have a crucial effect on the augmented osteoporotic bone regeneration upon the implantation of the biomaterial investigated in this study.
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Affiliation(s)
- Nenad Ignjatović
- Institute of Technical Sciences, Serbian Academy of Sciences and Arts, Belgrade, Serbia
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38
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Aina V, Lusvardi G, Annaz B, Gibson IR, Imrie FE, Malavasi G, Menabue L, Cerrato G, Martra G. Magnesium- and strontium-co-substituted hydroxyapatite: the effects of doped-ions on the structure and chemico-physical properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2867-2879. [PMID: 23053798 DOI: 10.1007/s10856-012-4767-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 09/15/2012] [Indexed: 06/01/2023]
Abstract
The present study is aimed at investigating the contribution of two biologically important cations, Mg(2+) and Sr(2+), when substituted into the structure of hydroxyapatite (Ca(10)(PO(4))(6)(OH)(2),HA). The substituted samples were synthesized by an aqueous precipitation method that involved the addition of Mg(2+)- and Sr(2+)-containing precursors to partially replace Ca(2+) ions in the apatite structure. Eight substituted HA samples with different concentrations of single (only Mg(2+)) or combined (Mg(2+) and Sr(2+)) substitution of cations have been investigated and the results compared with those of pure HA. The obtained materials were characterized by X-ray powder diffraction, specific surface area and porosity measurements (N(2) adsorption at 77 K), FT-IR and Raman spectroscopies and scanning electron microscopy. The results indicate that the co-substitution gives rise to the formation of HA and β-TCP structure types, with a variation of their cell parameters and of the crystallinity degree of HA with varying levels of substitution. An evaluation of the amount of substituents allows us to design and prepare BCP composite materials with a desired HA/β-TCP ratio.
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Affiliation(s)
- Valentina Aina
- Department of Chemistry, University of Turin, Via P. Giuria 7, 10125, Turin, Italy
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39
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Shepherd JH, Shepherd DV, Best SM. Substituted hydroxyapatites for bone repair. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2335-2347. [PMID: 22389101 DOI: 10.1007/s10856-012-4598-2] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 02/17/2012] [Indexed: 05/31/2023]
Abstract
Calcium phosphates such as hydroxyapatite have a wide range of applications both in bone grafts and for the coating of metallic implants, largely as a result of their chemical similarity to the mineral component of bone. However, to more accurately mirror the chemistry, various substitutions, both cationic (substituting for the calcium) and anionic (substituting for the phosphate or hydroxyl groups) have been produced. Significant research has been carried out in the field of substituted apatites and this paper aims to summarise some of the key effect of substitutions including magnesium, zinc, strontium, silicon and carbonate on physical and biological characteristics. Even small substitutions have been shown to have very significant effects on thermal stability, solubility, osteoclastic and osteoblastic response in vitro and degradation and bone regeneration in vivo.
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Affiliation(s)
- Jennifer H Shepherd
- Department of Materials Science and Metallurgy, University of Cambridge, New Museum's Site, Pembroke Street, Cambridge CB2 3QZ, UK.
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Fielding GA, Roy M, Bandyopadhyay A, Bose S. Antibacterial and biological characteristics of silver containing and strontium doped plasma sprayed hydroxyapatite coatings. Acta Biomater 2012; 8:3144-52. [PMID: 22487928 DOI: 10.1016/j.actbio.2012.04.004] [Citation(s) in RCA: 152] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 03/27/2012] [Accepted: 04/02/2012] [Indexed: 02/09/2023]
Abstract
Infection in primary total joint prostheses is estimated to occur in up to 3% of all surgery. As a measure to improve the antimicrobial properties of implant materials silver (Ag) was incorporated into plasma sprayed hydroxyapatite (HA) coatings. To offset potential cytotoxic effects of Ag in the coatings strontium (Sr) was also added as a binary dopant. HA powder was doped with 2.0 wt.% Ag(2)O, 1.0 wt.% SrO and was then heat treated at 800 °C. Titanium substrates were coated using a 30 kW plasma spray system equipped with a supersonic nozzle. X-ray diffraction confirmed the phase purity and high crystallinity of the coatings. Samples were evaluated for mechanical stability by adhesive bond strength testing. The results show that the addition of dopants did not affect the overall bond strength of the coatings. The antibacterial efficacies of the coatings were tested against Pseudomonas aeruginosa. Samples that contained the Ag(2)O dopant were found to be highly effective against bacterial colonization. In vitro cell-material interactions using human fetal osteoblast cells were characterized by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay for cell viability, field emission scanning electron microscopy for cell morphology and confocal imaging for the important differentiation marker alkaline phosphatase (ALP). Our results showed evidence of cytotoxic effects of the Ag-HA coatings, characterized by poor cellular morphology and cell death and nearly complete loss of functional ALP activity. The addition of SrO to the Ag-HA coatings was able to effectively offset these negative effects and improve performance compared with pure HA-coated samples.
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Wang Y, Ma J, Zhou L, Chen J, Liu Y, Qiu Z, Zhang S. Dual functional selenium-substituted hydroxyapatite. Interface Focus 2012; 2:378-86. [PMID: 23741613 DOI: 10.1098/rsfs.2012.0002] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 03/04/2012] [Indexed: 12/12/2022] Open
Abstract
Hydroxyapatite (HA) doped with trace elements has attracted much attention recently owing to its excellent biological functions. Herein, we use a facile co-precipitation method to incorporate selenium into HA by adding sodium selenite during synthesis. The obtained selenium-substituted HA products are needle-like nanoparticles which have size and crystallinity that are similar to those of the pure HA nanoparticles (HANs) when the selenium content is low. HANs are found to have the ability to induce the apoptosis of osteosarcoma cells, and the anti-tumour effects are enhanced after incorporation of selenium. Meanwhile, the nanoparticles can also support the growth of bone marrow stem cells. Furthermore, the flow cytometric results indicate that the apoptosis induction of osteosarcoma cells is caused by the increased reactive oxygen species and decreased mitochondrial membrane potential. These results show that the selenium-substituted HANs are potentially promising bone graft materials in osteosarcoma treatment due to their dual functions of supporting normal cell growth and inducing tumour cell apoptosis.
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Affiliation(s)
- Yanhua Wang
- Advanced Biomaterials and Tissue Engineering Center , Huazhong University of Science and Technology , Wuhan 430074 , People's Republic of China
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42
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Methodological Implications on Quantitative Studies of Cytocompatibility in Direct Contact with Bioceramic Surfaces. ACTA ACUST UNITED AC 2011. [DOI: 10.4028/www.scientific.net/kem.493-494.325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cell adhesion, proliferation and differentiation are important specific parameters to be evaluated on biocompatibility studies of candidate biomaterials for clinical applications. Several different methodologies have been employed to study, both qualitative and quantitatively, the direct interactions of ceramic materials with cultured mammal and human cells. However, while quantitatively evaluating cell density, viability and metabolic responses to test materials, several methodological challenges may arise, either by impairing the use of some widely applied techniques, or by generating false or conflicting results. In this work, we tested the inherent interference of different representative calcium phosphate ceramic surfaces (stoichiometric dense and porous hydroxyapatite (HA) and cation-substituted apatite tablets) on different tests for quantitative evaluation of osteoblast adhesion and metabolism, either based on direct cell counting after trypsinization, colorimetric assays (XTT, Neutral Red and Crystal Violet) and fluorescence microscopy. Cell adhesion estimation after trypsinization was highly dependent on the time of treatment, and the group with the highest level of estimated adhesion was inverted from 5 to 20 minutes of exposition to trypsin. Both dense and porous HA samples presented high levels of background adsorption of the Crystal Violet dye, impairing cell detection. HA surfaces also were able to adsorb high levels of fluorescent dyes (DAPI and phalloidin-TRITC), generating backgrounds which, in the case of porous HA, impaired cell detection and counting by image processing software (Image Pro Plus 6.0). We conclude that the choice for the most suitable method for cell detection and estimation is highly dependent on very specific characteristics of the studied material, and methodological adaptations on well established protocols must always be carefully taken on consideration.
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