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Aenglong C, Wang YM, Limpawattana M, Sukketsiri W, Tang QJ, Klaypradit W, Kerdpiboon S. Synthesis of soluble calcium compound from skipjack tuna bones using edible weak acids. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shaban NZ, Kenawy MY, Taha NA, Abd El-Latif MM, Ghareeb DA. Synthesized Nanorods Hydroxyapatite by Microwave-Assisted Technology for In Vitro Osteoporotic Bone Regeneration through Wnt/β-Catenin Pathway. MATERIALS 2021; 14:ma14195823. [PMID: 34640220 PMCID: PMC8510014 DOI: 10.3390/ma14195823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/27/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022]
Abstract
This research presents an optimal and inexpensive, without any additives, method for the synthesis and sintering of hydroxyapatite (HA) by microwave-assisted technology (MAT) furnace. The target sintering temperature of the furnace (1100 ℃) was held for one and two hours for conventional sintering. With regard to the microwave hybrid sintering, it was held at 100%MW for 20 and 30 min. FTIR, XRD, TGA, SEM/EDS, and TEM were assessed to determine HA phase composition, and structural as well as thermal decomposition behavior. The in vitro effects of sintered HA discs on cultured aged mice-isolated osteoblast cells and hydrocortisone-induced osteoclast cells were assessed by measuring ALP, osteocalcin, TRAP, calcium, and Alizarin red S staining. Moreover, their effects on cell differentiation (CD90 and CD 105 and PARR- ɣ) and death markers (GSK3b, MAPK, and β-catenin) were evaluated. The results demonstrate the production of ≈35 nm crystal-sized pure hydroxyapatite nanorod-like particles with a high degree of crystallinity and no impurities as required for biomedical application. HA increased osteogenesis (ALP, osteocalcin, and calcium) markers and decreased cell resorption markers. In addition, HA nanorods reversed the effect of cortisone on cell differentiation and death markers. In conclusion, microwave hybrid sintered HA is a potential nanomaterial for osteoporotic bone regeneration as HA reversed the cortisone adverse effect on osteoblast cell death through canonical and non-canonical pathways.
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Affiliation(s)
- Nadia Z. Shaban
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (N.Z.S.); (D.A.G.)
| | - Marwa Y. Kenawy
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (N.Z.S.); (D.A.G.)
- Fabrication Technology Researches Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt;
- Correspondence:
| | - Nahla A. Taha
- Modeling and Simulation Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt;
| | - Mona M. Abd El-Latif
- Fabrication Technology Researches Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt;
| | - Doaa A. Ghareeb
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt; (N.Z.S.); (D.A.G.)
- Bio-Screening and Preclinical Trial Lab, Biochemistry Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
- Center of Excellence for Drug Preclinical studies (CE-DPS), Pharmaceutical and Fermentation Industries Development Center (PFIDC), City of Scientific Research and Technological Applications (SRTA-City), New Borg El Arab 21934, Egypt
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Nanoscale Strontium-Substituted Hydroxyapatite Pastes and Gels for Bone Tissue Regeneration. NANOMATERIALS 2021; 11:nano11061611. [PMID: 34205427 PMCID: PMC8235522 DOI: 10.3390/nano11061611] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 12/21/2022]
Abstract
Injectable nanoscale hydroxyapatite (nHA) systems are highly promising biomaterials to address clinical needs in bone tissue regeneration, due to their excellent biocompatibility, bioinspired nature, and ability to be delivered in a minimally invasive manner. Bulk strontium-substituted hydroxyapatite (SrHA) is reported to encourage bone tissue growth by stimulating bone deposition and reducing bone resorption, but there are no detailed reports describing the preparation of a systematic substitution up to 100% at the nanoscale. The aim of this work was therefore to fabricate systematic series (0–100 atomic% Sr) of SrHA pastes and gels using two different rapid-mixing methodological approaches, wet precipitation and sol-gel. The full range of nanoscale SrHA materials were successfully prepared using both methods, with a measured substitution very close to the calculated amounts. As anticipated, the SrHA samples showed increased radiopacity, a beneficial property to aid in vivo or clinical monitoring of the material in situ over time. For indirect methods, the greatest cell viabilities were observed for the 100% substituted SrHA paste and gel, while direct viability results were most likely influenced by material disaggregation in the tissue culture media. It was concluded that nanoscale SrHAs were superior biomaterials for applications in bone surgery, due to increased radiopacity and improved biocompatibility.
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Paterson TE, Shi R, Tian J, Harrison CJ, De Sousa Mendes M, Hatton PV, Li Z, Ortega I. Electrospun Scaffolds Containing Silver-Doped Hydroxyapatite with Antimicrobial Properties for Applications in Orthopedic and Dental Bone Surgery. J Funct Biomater 2020; 11:jfb11030058. [PMID: 32824017 PMCID: PMC7563183 DOI: 10.3390/jfb11030058] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/09/2020] [Accepted: 07/28/2020] [Indexed: 12/25/2022] Open
Abstract
Preventing the development of osteomyelitis while enhancing bone regeneration is challenging, with relatively little progress to date in translating promising technologies to the clinic. Nanoscale hydroxyapatite (nHA) has been employed as a bone graft substitute, and recent work has shown that it may be modified with silver to introduce antimicrobial activity against known pathogens. The aim of this study was to incorporate silver-doped nHA into electrospun scaffolds for applications in bone repair. Silver-doped nHA was produced using a modified, rapid mixing, wet precipitation method at 2, 5, 10 mol.% silver. The silver-doped nHA was added at 20 wt.% to a polycaprolactone solution for electrospinning. Bacteria studies demonstrated reduced bacterial presence, with Escherichia coli and Staphylococcus aureus undetectable after 96 h of exposure. Mesenchymal stem cells (MSCs) were used to study both toxicity and osteogenicity of the scaffolds using PrestoBlue® and alkaline phosphatase (ALP) assays. Innovative silver nHA scaffolds significantly reduced E. coli and S. aureus bacterial populations while maintaining cytocompatibility with mammalian cells and enhancing the differentiation of MSCs into osteoblasts. It was concluded that silver-doped nHA containing scaffolds have the potential to act as an antimicrobial device while supporting bone tissue healing for applications in orthopedic and dental bone surgery.
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Affiliation(s)
- Thomas E. Paterson
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
| | - Rui Shi
- Beijing Laboratory of Biomedical Materials, Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing 100083, China;
| | - Jingjing Tian
- Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China;
- Central Laboratory, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Caroline J. Harrison
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
| | | | - Paul V. Hatton
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
- Correspondence: (P.V.H.); (Z.L.)
| | - Zhou Li
- Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China;
- Correspondence: (P.V.H.); (Z.L.)
| | - Ilida Ortega
- School of Clinical Dentistry, University of Sheffield, Shefield 0114, UK; (T.E.P.); (C.J.H.); (I.O.)
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Hanafy RA, Mostafa D, Abd El-Fattah A, Kandil S. Biomimetic chitosan against bioinspired nanohydroxyapatite for repairing enamel surfaces. BIOINSPIRED, BIOMIMETIC AND NANOBIOMATERIALS 2020; 9:85-94. [DOI: 10.1680/jbibn.19.00008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
In this study, chitosan was employed as a novel biomimetic mineralization model to repair damaged enamel to compare its performance with that of bioinspired zinc-doped nanohydroxyapatite. Fifty human premolar tooth slices were prepared, and artificial caries lesions were induced to produce demineralized enamel surfaces. The etched slices were randomly divided into two groups: a chitosan-hydrogel-treated group and a zinc-doped nanohydroxyapatite-treated group. In vitro assessment using energy-dispersive X-ray analysis, X-ray diffraction analysis and scanning electron microscopy was conducted at the baseline, demineralization and remineralization stages. Baseline results were matched with those for normal enamel; a marked reduction in the calcium (Ca)/phosphorus (P) ratio to 1·12 and the lack of the characteristic hydroxyapatite diffraction peaks were detected for demineralized enamel. The remineralization stage revealed evident recovery of the mineral contents (the calcium/phosphorus ratio was 1·61 for the chitosan-treated group and 1·58 for the bioinspired-nanohydroxyapatite-treated one), with apparent distinctive X-ray diffraction patterns of hydroxyapatite in both groups. Scanning electron microscopic analysis showed the absence of etched enamel porosity, with the formation of a newly formed rod-like apatite layer, similar to natural enamel, which extended over the treated enamel surfaces of both groups. Chitosan hydrogel is recommended as a biomimetic mineralization smart system for repairing demineralized carious enamel.
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Affiliation(s)
- Rania Ahmed Hanafy
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt; Department of Dental Biomaterials, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Dawlat Mostafa
- Department of Dental Biomaterials, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Ahmed Abd El-Fattah
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt; Department of Chemistry, College of Science, University of Bahrain, Sakhir, Kingdom of Bahrain
| | - Sherif Kandil
- Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
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Deen I, Rosei F. Silk fibroin-derived polypeptides additives to promote hydroxyapatite nucleation in dense collagen hydrogels. PLoS One 2019; 14:e0219429. [PMID: 31306436 PMCID: PMC6629059 DOI: 10.1371/journal.pone.0219429] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 06/24/2019] [Indexed: 11/30/2022] Open
Abstract
Silk fibroin-derived polypeptides (FDPs) are polypeptides resulting from the enzymatic separation of the hydrophobic crystalline (Cp) and hydrophilic electronegative amorphous (Cs) components of silk fibroin (SF). The role of these polypeptides in promoting the nucleation of hydroxyapatite (HA) has been previously investigated, yet is still not fully understood. Here we study the potential of HA mineralization via FDPs incorporated at 1:10, 1:2 and 1:1 in a plastically compressed (PC) and dense collagen (DC) scaffold. Scaffolds were immersed in simulated body fluid (SBF) at physiological conditions (pH = 7.4, 37°C) to promote biomineralization. The effect of Cs and Cp to promote HA nucleation was investigated at different time points, and compared to pure DC scaffolds. Characterization of Cs and Cp fragments using Liquid Chromatography-Mass Spectrometry (LCMS) showed little difference in the amino acid composition of the FDPs. Results obtained in vitro using Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM) X-Ray Diffraction (XRD) and mass analysis showed little difference between scaffolds that incorporated Cs, Cp, and DC hydrogels. These results demonstrated that silk FDPs incorporation are not yet suitable to promote HA nucleation in vivo without further refining the collagen-FDP system.
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Affiliation(s)
- Imran Deen
- Centre Énergie, Matériaux et Télécommunications, Institut national de la recherche scientifique, Varennes, QC, Canada
| | - Federico Rosei
- Centre Énergie, Matériaux et Télécommunications, Institut national de la recherche scientifique, Varennes, QC, Canada
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