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Mohammadi N, Alikhasi Amnieh Y, Ghasemi S, Karbasi S, Vaezifar S. Evaluation of the effects of decellularized extracellular matrix nanoparticles incorporation on the polyhydroxybutyrate/nano chitosan electrospun scaffold for cartilage tissue engineering. Int J Biol Macromol 2024; 273:133217. [PMID: 38897519 DOI: 10.1016/j.ijbiomac.2024.133217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 06/07/2024] [Accepted: 06/15/2024] [Indexed: 06/21/2024]
Abstract
Recent research focuses on fabricating scaffolds imitating the extracellular matrix (ECM) in texture, composition, and functionality. Moreover, specific nano-bio-particles can enhance cell differentiation. Decellularized ECM nanoparticles possess all of the mentioned properties. In this research, cartilage ECM, extracted from the cow's femur condyle, was decellularized, and ECM nanoparticles were synthesized. Finally, nanocomposite electrospun fibers containing polyhydroxybutyrate (PHB), chitosan (Cs) nanoparticles, and ECM nanoparticles were fabricated and characterized. TEM and DLS results revealed ECM nanoparticle sizes of 17.51 and 21.6 nm, respectively. Optimal performance was observed in the scaffold with 0.75 wt% ECM nanoparticles (PHB-Cs/0.75E). By adding 0.75 wt% ECM, the ultimate tensile strength and elongation at break increased by about 29 % and 21 %, respectively, while the water contact angle and crystallinity decreased by about 36° and 2 %, respectively. Uneven and rougher surfaces of the PHB-Cs/0.75E were determined by FESEM and AFM images, respectively. TEM images verified the uniform dispersion of nanoparticles within the fibers. After 70 days of degradation in PBS, the PHB-Cs/0.75E and PHB-Cs scaffolds demonstrated insignificant weight loss differences. Eventually, enhanced viability, attachment, and proliferation of the human costal chondrocytes on the PHB-Cs/0.75E scaffold, concluded from MTT, SEM, and DAPI staining, confirmed its potential for cartilage tissue engineering.
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Affiliation(s)
- Nayereh Mohammadi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Yasamin Alikhasi Amnieh
- Department of Veterinary Histology, School of Veterinary, Shahrekord University, Shahrekord, Iran
| | - Saeid Ghasemi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Sedigheh Vaezifar
- Department of Medical Engineering, Payame Noor University, Tehran, Iran
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2
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Amnieh YA, Ghadirian S, Mohammadi N, Shadkhast M, Karbasi S. Evaluation of the effects of chitosan nanoparticles on polyhydroxy butyrate electrospun scaffolds for cartilage tissue engineering applications. Int J Biol Macromol 2023; 249:126064. [PMID: 37524286 DOI: 10.1016/j.ijbiomac.2023.126064] [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: 05/04/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/02/2023]
Abstract
In this study, we synthesized and incorporated chitosan nanoparticles (Cs) into polyhydroxy butyrate (PHB) electrospun scaffolds for cartilage tissue engineering. The Cs nanoparticles were synthesized via an ionic gel interaction between Cs powder and tripolyphosphate (TPP). The mechanical properties, hydrophilicity, and fiber diameter of the PHB scaffolds with varying concentrations of Cs nanoparticles (1-5 wt%) were evaluated. The results of these evaluations showed that the scaffold containing 1 wt% Cs nanoparticles (P1Cs) was the optimum scaffold, with increased ultimate strength from 2.6 to 5.2 MPa and elongation at break from 5.31 % to 12.6 %. Crystallinity, degradation, and cell compatibility were also evaluated. The addition of Cs nanoparticles decreased crystallinity and accelerated hydrolytic degradation. MTT assay results showed that the proliferation of chondrocytes on the scaffold containing 1 wt% Cs nanoparticles were significantly higher than that on pure PHB after 7 days of cultivation. These findings suggest that the electrospun P1Cs scaffold has promising potential as a substrate for cartilage tissue engineering applications. This combination offers a promising approach for the fabrication of biomimetic scaffolds with enhanced mechanical properties, hydrophilicity, and cell compatibility for tissue engineering applications.
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Affiliation(s)
- Yasamin Alikhasi Amnieh
- Department of Veterinary Histology, School of Veterinary, Shahrekord University, Shahrekord, Iran
| | - Sepideh Ghadirian
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nayereh Mohammadi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Shadkhast
- Basic Science of Veterinary Faculty, Shahrekord University, Shahrekord, Iran
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
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Sattariazar S, Nejad Ebrahimi S, Arsalani N. Enhancing the properties of electrospun polyvinyl Alcohol/Oxidized sodium alginate nanofibers with fluorescence carbon Dots: Preparation and characterization. Int J Pharm 2023; 644:123358. [PMID: 37647981 DOI: 10.1016/j.ijpharm.2023.123358] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/13/2023] [Accepted: 08/27/2023] [Indexed: 09/01/2023]
Abstract
The objective of this study was to develop fluorescence nanofibrous polyvinyl alcohol/oxidized sodium alginate (PVA-OSA) incorporated with carbon dots (CDs) through Schiff-base interaction. The carbon dots used in this study were derived from the polyphenol-enriched extract of pomegranate peel, as established in previous work, as the reinforcing and antioxidant agent to enhance the physicochemical and biological properties of the nanofibers were used. The fabricated nanofibers were characterized using FE-SEM, FT-IR, XRD, and DSC analysis. The FE-SEM results revealed that an increase in the number of CDs in the nanofibers led to a decrease in diameter (809.6 ± 77.1 nm to 273.16 ± 41.1 nm). Furthermore, surface modification caused a significant reduction in the amount of surface roughness of the nanofibers. Incorporating CDs not only reduced the scaffold diameter but also improved its mechanical properties and promoted the growth of fibroblast cells. The ultimate tensile strength of scaffolds with and without CDs was 2.15 ± 0.02 MPa and 1.53 ± 0.74 MPa respectively. The influence of CDs amount on the properties of nanofibers showed that the swelling capacity and degradability of nanofibers can be adjusted by changing the range of CDs. Apart from the aforementioned benefits of incorporating CDs in improving nanofiber properties, their exceptional antioxidant properties can be harnessed for protecting nanofibers against oxidation and as a healing agent in wound dressings.
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Affiliation(s)
- Simin Sattariazar
- Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, Tehran, Iran.
| | - Nasser Arsalani
- Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
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Salehi AOM, Keshel SH, Rafienia M, Nourbakhsh MS, Baradaran-Rafii A. Promoting keratocyte stem like cell proliferation and differentiation by aligned polycaprolactone-silk fibroin fibers containing Aloe vera. BIOMATERIALS ADVANCES 2022; 137:212840. [PMID: 35929269 DOI: 10.1016/j.bioadv.2022.212840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/04/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
There is a long history behind applying biological macromolecules like Aloe vera (AV) in regenerative medicine; endowed with anti-inflammatory and antimicrobial activities besides improving immune activity, AV has always been of particular interest to regenerate/reconstruct injuries and burns. In the present study, aligned electrospun polycaprolactone (PCL)-silk fibroin (SF) fibers containing different percentages of AV (0, 2.5, 5, and 7.5%wt) were fabricated for stromal regeneration. The results illustrated that a uniform bead-free structure was obtained, and the AV incorporation decreased the mean fiber diameter from 552 down to 182 nm and led to more alignment in the fibers. The Young's modulus raised from 4.96 to 5.26 MPa by higher amount of AV up to 5%wt. It is noteworthy that both the fiber alignment and AV affected the scaffolds' transparency and water uptake to increase. The human stromal keratocyte cells (hSKC)s culture revealed that the addition of AV and morphological properties of scaffolds encouraged cell adhesion and proliferation. The mRNA expression level for keratocan and ALDH3A1 and immunocytochemistry F-actin revealed the positive effect of AV on hSKCs differentiation. Our study indicated the promising potential of AV as a biological macromolecule for stromal tissue regeneration.
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Affiliation(s)
- Amin Orash Mahmoud Salehi
- Biomaterials Group, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran; Department of Biomechatronics Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Saeed Heidari Keshel
- Medical Nanotechnology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Science, Tehran 19857-17443, Iran
| | - Mohammad Rafienia
- Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran.
| | - Mohammad Sadegh Nourbakhsh
- Biomaterials Group, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran; Department of Materials and Metallurgical Engineering, Semnan University, Semnan 35131-19111, Iran.
| | - Alireza Baradaran-Rafii
- Ophthalmic Research Center, Department of Ophthalmology, Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Ophthalmology, Morsani College of Medicine, University of South Florida, Tampa, FL 19857-17443, USA.
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Meng Z, Wang L, Shen L, Li Z, Zhao Z, Wang X. Supercritical carbon dioxide assisted fabrication of biomimetic sodium alginate/silk fibroin nanofibrous scaffolds. J Appl Polym Sci 2021. [DOI: 10.1002/app.51421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zhi‐Yuan Meng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
| | - Li Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
| | - Lin‐Yi Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
| | - Ze‐Hao Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
| | - Zheng Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
- Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
| | - Xin‐Yu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
- Biomedical Materials and Engineering Research Center of Hubei Province Wuhan University of Technology Wuhan China
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Rezvaninia M, Bagheri F, Baheiraei N. Effects of kartogenin/PLGA nanoparticles on silk scaffold properties and stem cell fate. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2021. [DOI: 10.1680/jbibn.20.00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Cartilage is an avascular and aneural connective tissue with poor self-healing capability. Recently, tissue engineering opens up new horizons for staving off or treating cartilage lesions. In this work, kartogenin (KGN), a small chondro-inductive molecule, was loaded into poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs), which in turn was embedded in a silk fibroin (SF) scaffold, to prepare an appropriate microenvironment for mesenchymal stem cell (MSC) differentiation. In this research, SF was opted to serve as a scaffold based on its approved biocompatibility and non-toxicity, excellent mechanical properties and processability. The data obtained from this study show that entrapment of KGN in NPs provides sustained release, which could promote the differentiation of MSCs into chondrocytes. Likewise, the scaffold containing KGN-loaded NPs induces glycosaminoglycan production by the seeded MSCs. The introduction of NPs into the scaffold, meanwhile, elevated the compressive strength of the structures (more than two times) without any significant effect on their swelling behavior. Taken together, the authors’ findings demonstrate that the prepared scaffold, with an optimal structure, could be a potential candidate for cartilage tissue regeneration.
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Affiliation(s)
- Maryam Rezvaninia
- Department of Biomedical Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Bagheri
- Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Nafiseh Baheiraei
- Tissue Engineering and Applied Cell Sciences Division, Department of Anatomical Science, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Corneal stromal regeneration by hybrid oriented poly (ε-caprolactone)/lyophilized silk fibroin electrospun scaffold. Int J Biol Macromol 2020; 161:377-388. [DOI: 10.1016/j.ijbiomac.2020.06.045] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/25/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023]
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Ghorghi M, Rafienia M, Nasirian V, Bitaraf FS, Gharravi AM, Zarrabi A. Electrospun captopril‐loaded
PCL
‐carbon quantum dots nanocomposite scaffold: Fabrication, characterization, and in vitro studies. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5054] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mina Ghorghi
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Technologies in Medicine Isfahan University of Medical Sciences Isfahan Iran
| | - Mohammad Rafienia
- Biosensor Research Center, Department of Advanced Medical Technology Isfahan University of Medical Sciences Isfahan Iran
| | - Vahid Nasirian
- Department of Biological Sciences Louisiana State University in Shreveport Shreveport Louisiana USA
| | - Fatemeh S. Bitaraf
- Department of Medical Biotechnology, School of Medicine Shahroud University of Medical Sciences Shahroud Iran
| | - Anneh M. Gharravi
- Tissue Engineering and Stem Cells Research Center Shahroud University of Medical Sciences Shahroud Iran
| | - Ali Zarrabi
- SUNUM, Nanotechnology Research and Application Center Sabanci University Istanbul Turkey
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9
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The journey of multifunctional bone scaffolds fabricated from traditional toward modern techniques. Biodes Manuf 2020. [DOI: 10.1007/s42242-020-00094-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Promoting effect of nano hydroxyapatite and vitamin D3 on the osteogenic differentiation of human adipose-derived stem cells in polycaprolactone/gelatin scaffold for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 97:141-155. [DOI: 10.1016/j.msec.2018.12.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 10/18/2018] [Accepted: 12/10/2018] [Indexed: 01/15/2023]
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Kozlowska J, Kaczmarkiewicz A. Collagen matrices containing poly(vinyl alcohol) microcapsules with retinyl palmitate – Structure, stability, mechanical and swelling properties. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Moaddab M, Nourmohammadi J, Rezayan AH. Bioactive composite scaffolds of carboxymethyl chitosan-silk fibroin containing chitosan nanoparticles for sustained release of ascorbic acid. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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13
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Ribeiro VP, da Silva Morais A, Maia FR, Canadas RF, Costa JB, Oliveira AL, Oliveira JM, Reis RL. Combinatory approach for developing silk fibroin scaffolds for cartilage regeneration. Acta Biomater 2018; 72:167-181. [PMID: 29626700 DOI: 10.1016/j.actbio.2018.03.047] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/13/2018] [Accepted: 03/28/2018] [Indexed: 01/26/2023]
Abstract
Several processing technologies and engineering strategies have been combined to create scaffolds with superior performance for efficient tissue regeneration. Cartilage tissue is a good example of that, presenting limited self-healing capacity together with a high elasticity and load-bearing properties. In this work, novel porous silk fibroin (SF) scaffolds derived from horseradish peroxidase (HRP)-mediated crosslinking of highly concentrated aqueous SF solution (16 wt%) in combination with salt-leaching and freeze-drying methodologies were developed for articular cartilage tissue engineering (TE) applications. The HRP-crosslinked SF scaffolds presented high porosity (89.3 ± 0.6%), wide pore distribution and high interconnectivity (95.9 ± 0.8%). Moreover, a large swelling capacity and favorable degradation rate were observed up to 30 days, maintaining the porous-like structure and β-sheet conformational integrity obtained with salt-leaching and freeze-drying processing. The in vitro studies supported human adipose-derived stem cells (hASCs) adhesion, proliferation, and high glycosaminoglycans (GAGs) synthesis under chondrogenic culture conditions. Furthermore, the chondrogenic differentiation of hASCs was assessed by the expression of chondrogenic-related markers (collagen type II, Sox-9 and Aggrecan) and deposition of cartilage-specific extracellular matrix for up to 28 days. The cartilage engineered constructs also presented structural integrity as their mechanical properties were improved after chondrogenic culturing. Subcutaneous implantation of the scaffolds in CD-1 mice demonstrated no necrosis or calcification, and deeply tissue ingrowth. Collectively, the structural properties and biological performance of these porous HRP-crosslinked SF scaffolds make them promising candidates for cartilage regeneration. STATEMENT OF SIGNIFICANCE In cartilage tissue engineering (TE), several processing technologies have been combined to create scaffolds for efficient tissue repair. In our study, we propose novel silk fibroin (SF) scaffolds derived from enzymatically crosslinked SF hydrogels processed by salt-leaching and freeze-drying technologies, for articular cartilage applications. Though these scaffolds, we were able to combine the elastic properties of hydrogel-based systems, with the stability, resilience and controlled porosity of scaffolds processed via salt-leaching and freeze-drying technologies. SF protein has been extensively explored for TE applications, as a result of its mechanical strength, elasticity, biocompatibility, and biodegradability. Thus, the structural, mechanical and biological performance of the proposed scaffolds potentiates their use as three-dimensional matrices for cartilage regeneration.
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Chen Q, Shao X, Ling P, Liu F, Han G, Wang F. Recent advances in polysaccharides for osteoarthritis therapy. Eur J Med Chem 2017; 139:926-935. [DOI: 10.1016/j.ejmech.2017.08.048] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 08/17/2017] [Accepted: 08/22/2017] [Indexed: 12/24/2022]
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Sattary M, Khorasani MT, Rafienia M, Rozve HS. Incorporation of nanohydroxyapatite and vitamin D3 into electrospun PCL/Gelatin scaffolds: The influence on the physical and chemical properties and cell behavior for bone tissue engineering. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4134] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mansoureh Sattary
- Department of Biomedical Engineering, Science, and Research Branch; Islamic Azad University; Tehran Iran
| | - Mohammad Taghi Khorasani
- Biomaterial Department of Iran Polymer and Petrochemical Institute; PO Box 14965 159 Tehran Iran
| | - Mohammad Rafienia
- Biosensor Research Center; Isfahan University of Medical Sciences; 81744176 Isfahan Iran
| | - Hossein Salehi Rozve
- Department of Anatomical Sciences and Molecular Biology, School of Medicine; Isfahan University of Medical Sciences; 81744176 Isfahan Iran
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Saber-Samandari S, Saber-Samandari S. Biocompatible nanocomposite scaffolds based on copolymer-grafted chitosan for bone tissue engineering with drug delivery capability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:721-732. [PMID: 28415522 DOI: 10.1016/j.msec.2017.02.112] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 10/23/2016] [Accepted: 02/21/2017] [Indexed: 10/20/2022]
Abstract
Significant efforts have been made to develop a suitable biocompatible scaffold for bone tissue engineering. In this work, a chitosan-graft-poly(acrylic acid-co-acrylamide)/hydroxyapatite nanocomposite scaffold was synthesized through a novel multi-step route. The prepared scaffolds were characterized for crystallinity, morphology, elemental analysis, chemical bonds, and pores size in their structure. The mechanical properties (i.e. compressive strength and elastic modulus) of the scaffolds were examined. Further, the biocompatibility of scaffolds was determined by MTT assays on HUGU cells. The result of cell culture experiments demonstrated that the prepared scaffolds have good cytocompatibility without any cytotoxicity, and with the incorporation of hydroxyapatite in their structure improves cell viability and proliferation. Finally, celecoxib as a model drug was efficiently loaded into the prepared scaffolds because of the large specific surface area. The in vitro release of the drug displayed a biphasic pattern with a low initial burst and a sustained release of up to 14days. Furthermore, different release kinetic models were employed for the description of the release process. The results suggested that the prepared cytocompatible and non-toxic nanocomposite scaffolds might be efficient implants and drug carriers in bone-tissue engineering.
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Affiliation(s)
- Samaneh Saber-Samandari
- Department of Chemistry, Eastern Mediterranean University, Gazimagusa, TRNC via Mersin 10, Turkey.
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