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Wu Y, Chen X, Kang J, Yang Y, Zhao X, Liu Y, Qiao J. Calcium silicate/gelatin composite scaffolds with controllable degradation behavior: Fabrication and evaluation. J Mech Behav Biomed Mater 2024; 152:106422. [PMID: 38310813 DOI: 10.1016/j.jmbbm.2024.106422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/06/2024]
Abstract
Calcium silicate can be used as an excellent material for biodegradable bone scaffolds because it can provide bioactive ions to promote bone regeneration. However, the brittleness and rapid degradation of calcium silicate scaffolds have significantly limited their clinical application. In this work, the calcium silicate scaffolds printed by DLP technology were immersed in a gelatin solution under high vacuum condition to obtain calcium silicate/gelatin composite scaffolds with good mechanical and biological properties. Then, genipin was used as a cross-linker for gelatin to control the degradation properties of the composite scaffolds. The initial compressive strength and toughness of the composite scaffolds were 5.0 times and one order of magnitude higher than those of the pure calcium silicate scaffolds, respectively. The gelatin on the surface of the scaffolds could effectively act as a protective layer to regulate the degradation behaviors of the calcium silicate substrate through controlling the crosslinking degree of the gelatin. After degrading for 14 days, the composite scaffolds at 1.0 % genipin concentration exhibited the highest compressive strength of 8.6 ± 0.8 MPa, much higher than that of the pure ceramic scaffold (1.5 ± 0.3 MPa). It can be found that the toughness of the composite scaffolds were almost over 13.2 times higher than that of the pure ceramic scaffold during degradation, despite the higher toughness loss for the former. Furthermore, the composite scaffolds showed enhanced cell biocompatibility and viability. These results demonstrate that the calcium silicate/gelatin composite scaffolds can be a promising candidate in bone tissue regeneration.
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Affiliation(s)
- Yanlong Wu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan, 528000, China; Ji Hua Laboratory, Foshan, 528200, China; School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xu Chen
- School of Mechatronic Engineering and Automation, Foshan University, Foshan, 528000, China; Ji Hua Laboratory, Foshan, 528200, China
| | - Jianfeng Kang
- School of Mechatronic Engineering and Automation, Foshan University, Foshan, 528000, China
| | - Yongqiang Yang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Yaxiong Liu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan, 528000, China; Ji Hua Laboratory, Foshan, 528200, China.
| | - Jian Qiao
- School of Mechatronic Engineering and Automation, Foshan University, Foshan, 528000, China.
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2
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Sadreddini S, Jodati H, Evis Z, Keskin D. Novel barium-doped-baghdadite incorporated PHBV-PCL composite fibrous scaffolds for bone tissue engineering. J Mech Behav Biomed Mater 2023; 148:106185. [PMID: 37837873 DOI: 10.1016/j.jmbbm.2023.106185] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/16/2023]
Abstract
Bioceramic/polymer composites have dragged a lot of attention for treating hard tissue damage in recent years. In this study, we synthesized barium-doped baghdadite (Ba-BAG), as a novel bioceramic, and later developed fibrous composite poly (hydroxybutyrate) co (hydroxyvalerate)- polycaprolactone (PHBV-PCL) scaffolds containing different amounts of baghdadite (BAG) and Ba-BAG, intended to be used in bone regeneration. Our results demonstrated that BAG and Ba-doped BAG powders were synthesized successfully using the sol-gel method and their microstructural, physicochemical, and cytotoxical properties results were evaluated. In the following, PHBV/PCL composite scaffolds containing different amounts of BAG and Ba-BAG (1, 3, and 5 wt%) were produced by the wet electrospinning method. The porosity of scaffolds decreased from 78% to 72% in Ba-BAG-incorporated PHBV/PCL scaffolds. The compressive strength of the scaffolds was between 4.69 and 9.28 kPa, which was increased to their maximum values in the scaffolds with Ba-BAG. The presence of BAG and Ba-BAG in the polymer scaffolds resulted in increasing bioactivity, and it was introduced as a suitable way to control the degradation rate of scaffolds. The presence of the BAG component was a major reason for higher cell proliferation in reinforced PHBV/PCL polymeric scaffolds, while Ba existence played its influential role in the higher osteogenic activity of cells on Ba-BAG incorporated PHBV/PCL scaffolds. Thus, the incorporation of Ba-BAG bioceramic materials into the structure of polymeric PHBV/PCL scaffolds promoted their various properties, and allow these scaffolds to be used as promising candidates in bone tissue engineering applications.
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Affiliation(s)
- Sanaossadat Sadreddini
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Hossein Jodati
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Zafer Evis
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey.
| | - Dilek Keskin
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey
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3
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Sobhani A, Salimi E. Low temperature preparation of diopside nanoparticles: in-vitro bioactivity and drug loading evaluation. Sci Rep 2023; 13:16330. [PMID: 37770584 PMCID: PMC10539512 DOI: 10.1038/s41598-023-43671-0] [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: 05/09/2023] [Accepted: 09/27/2023] [Indexed: 09/30/2023] Open
Abstract
Bioactive diopside (CaMgSi2O6) nanoparticles have recently gained potential usefulness as bone replacement materials and nano vehicles for delivering therapeutics. The structural characteristics of this ceramic have found to be a key factor in bone bonding ability. To attain the desired product for 100% clinical success, it is important to realize the relationship between structure and biological activity. Synthesis of these nanoparticles via the solid-state method has been regarded as a low-cost and easy process in large-scale, but time consuming reactions and high temperature (≈ 1400 °C) are required. On the other side, the wet chemistry can overcome these drawbacks, whereas the presence of byproducts in the final powder has limited this method in large-scale production. The present document has represented a simple, fast and one-pot sol-gel approach for the synthesis of highly pure diopside nano-powders (< 20 nm) by using not-expensive precursors. Calcination of the obtained powder has been conducted at various temperatures (700, 1000 and 1200 °C). The physicochemical and microstructural properties of the products have been characterized by XRD, FTIR, FESEM and TEM. Moreover, the impact of the crystallinity on the bioactivity, drug loading capacity and drug release behavior of the synthesized nanoparticles have been investigated here for the first time. The in-vitro bioactivity results of the prepared diopside samples in a simulated body fluid (SBF) at 37 °C revealed the higher capability of the sintered sample to deposit calcium phosphate, compared with the amorphous one. High quantity of gentamicin (around 10 µg) could attach to the surface of 1 miligram of the sintered diopside during the early stages of contact (3 h), suggesting the potential use of diopside as a new class of nano-vehicles for antibiotics. The release behavior indicated a sustained release of gentamicin (80%) after 24 h. In conclusion, diopside nanoparticles can be a promising candidate as a drug-vehicle for bone filling, implant coating or bone cement applications.
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Affiliation(s)
- Ava Sobhani
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, P. O. Box: 3619995161, Shahrood, Iran
| | - Esmaeil Salimi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, P. O. Box: 3619995161, Shahrood, Iran.
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4
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Emadi H, Karevan M, Masoudi Rad M, Sadeghzade S, Pahlevanzadeh F, Khodaei M, Khayatzadeh S, Lotfian S. Bioactive and Biodegradable Polycaprolactone-Based Nanocomposite for Bone Repair Applications. Polymers (Basel) 2023; 15:3617. [PMID: 37688243 PMCID: PMC10490551 DOI: 10.3390/polym15173617] [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: 06/30/2023] [Revised: 08/07/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
This study investigated the relationship between the structure and mechanical properties of polycaprolactone (PCL) nanocomposites reinforced with baghdadite, a newly introduced bioactive agent. The baghdadite nanoparticles were synthesised using the sol-gel method and incorporated into PCL films using the solvent casting technique. The results showed that adding baghdadite to PCL improved the nanocomposites' tensile strength and elastic modulus, consistent with the results obtained from the prediction models of mechanical properties. The tensile strength increased from 16 to 21 MPa, and the elastic modulus enhanced from 149 to 194 MPa with fillers compared to test specimens without fillers. The thermal properties of the nanocomposites were also improved, with the degradation temperature increasing from 388 °C to 402 °C when 10% baghdadite was added to PCL. Furthermore, it was found that the nanocomposites containing baghdadite showed an apatite-like layer on their surfaces when exposed to simulated body solution (SBF) for 28 days, especially in the film containing 20% nanoparticles (PB20), which exhibited higher apatite density. The addition of baghdadite nanoparticles into pure PCL also improved the viability of MG63 cells, increasing the viability percentage on day five from 103 in PCL to 136 in PB20. Additionally, PB20 showed a favourable degradation rate in PBS solution, increasing mass loss from 2.63 to 4.08 per cent over four weeks. Overall, this study provides valuable insights into the structure-property relationships of biodegradable-bioactive nanocomposites, particularly those reinforced with new bioactive agents.
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Affiliation(s)
- Hosein Emadi
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 14176-14411, Iran
- Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mehdi Karevan
- Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Maryam Masoudi Rad
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Sorour Sadeghzade
- Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing, Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
| | - Farnoosh Pahlevanzadeh
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Mohammad Khodaei
- Materials Engineering Group, Golpayegan College of Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Saber Khayatzadeh
- Department of Design and Mathematics, University of the West of England, Bristol BS16 1QY, UK
| | - Saeid Lotfian
- Faculty of Engineering, University of Strathclyde, Glasgow G4 0LZ, UK
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5
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Jodati H, Evis Z, Tezcaner A, Alshemary AZ, Motameni A. 3D porous bioceramic based boron-doped hydroxyapatite/baghdadite composite scaffolds for bone tissue engineering. J Mech Behav Biomed Mater 2023; 140:105722. [PMID: 36796253 DOI: 10.1016/j.jmbbm.2023.105722] [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: 12/27/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
Making composite scaffolds is one of the well-known methods to improve the properties of scaffolds used in bone tissue engineering. In this study, novel ceramic-based 3D porous composite scaffolds were successfully prepared using boron-doped hydroxyapatite, as the primary component, and baghdadite, as the secondary component. The effects of making composites on the properties of boron-doped hydroxyapatite-based scaffolds were investigated in terms of physicochemical, mechanical, and biological properties. The incorporation of baghdadite contributed to making more porous scaffolds (over 40%) with larger surface area and micropore volumes. The produced composite scaffolds almost solved the low degradation problem of boron-doped hydroxyapatite through the exhibition of higher biodegradation rates, which matched the degradation rate appropriate for the gradual transfer of loads from implants to newly formed bone tissues. Besides higher bioactivity, enhanced cell proliferation, as well as higher osteogenic differentiation (in scaffolds with baghdadite weight greater than 10%), were observed in composite scaffolds due to both physical and chemical modifications that occurred in composite scaffolds. Although our composite scaffolds were slightly weaker than boron-doped hydroxyapatite, their compressive strengths were higher than almost all composite scaffolds made by baghdadite incorporation in the literature. In fact, boron-doped hydroxyapatite provided a base for baghdadite to show mechanical strength suitable for cancellous bone defect treatments. Eventually, our novel composite scaffolds converged the advantages of both components to satisfy the various requirements needed for bone tissue engineering applications and take us one step forward on the road to fabricating an ideal scaffold.
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Affiliation(s)
- Hossein Jodati
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Zafer Evis
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey.
| | - Ayşen Tezcaner
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey
| | - Ammar Z Alshemary
- Department of Chemistry, College of Science and Technology, Wenzhou-Kean University, Wenzhou, 325260, China; Biomedical Engineering Department, Al-Mustaqbal University College, Hillah Babil, 51001, Iraq
| | - Ali Motameni
- Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey
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6
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Wu Y, Chen R, Chen X, Yang Y, Qiao J, Liu Y. Development of Strong and Tough β-TCP/PCL Composite Scaffolds with Interconnected Porosity by Digital Light Processing and Partial Infiltration. MATERIALS (BASEL, SWITZERLAND) 2023; 16:947. [PMID: 36769953 PMCID: PMC9918277 DOI: 10.3390/ma16030947] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/09/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Strong and tough β-TCP/PCL composite scaffolds with interconnected porosity were developed by combining digital light processing and vacuum infiltration. The composite scaffolds were comprised of pure β-TCP, β-TCP matrix composite and PCL matrix composite. The porous β-TCP/PCL composite scaffolds showed remarkable mechanical advantages compared with ceramic scaffolds with the same macroscopic pore structure (dense scaffolds). The composite scaffolds exhibited a significant increase in strain energy density and fracture energy density, though with similar compressive and flexural strengths. Moreover, the composite scaffolds had a much higher Weibull modulus and longer fatigue life than the dense scaffolds. It was revealed that the composite scaffolds with interconnected porosity possess comprehensive mechanical properties (high strength, excellent toughness, significant reliability and fatigue resistance), which suggests that they could replace the pure ceramic scaffolds for degradable bone substitutes, especially in complex stress environments.
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Affiliation(s)
- Yanlong Wu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
- Ji Hua Laboratory, Foshan 528200, China
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ruomeng Chen
- Key Lab of Intelligent Equipment Digital Design and Process Simulation, Tangshan College, Tangshan 063000, China
| | - Xu Chen
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
- Ji Hua Laboratory, Foshan 528200, China
| | - Yongqiang Yang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Qiao
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
| | - Yaxiong Liu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
- Ji Hua Laboratory, Foshan 528200, China
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7
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Nasser Atia G, Barai HR, Shalaby HK, Ali NG, Morsy SM, Ghobashy MM, Nasser Attia HA, Joo SW. Baghdadite: A Novel and Promising Calcium Silicate in Regenerative Dentistry and Medicine. ACS OMEGA 2022; 7:44532-44541. [PMID: 36530225 PMCID: PMC9753547 DOI: 10.1021/acsomega.2c05596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
For several years, ceramic biomaterials have been extensively utilized to rebuild and substitute for body tissues. Calcium silicates have been proven to exhibit excellent bioactivity due to apatite formation and cell proliferation stimulation, in addition to degradability at levels adequate for hard tissue formation. These ceramics' excellent biological characteristics have attracted researchers. Baghdadite is a calcium silicate incorporating zirconium ions that enhances human osteoblast multiplication and development, increasing mineralization, and ossification. It has currently received much interest in academic institutions and has been extensively explored in the form of permeable frameworks, varnishes, bone adhesive and gap fillings, microparticles, and nanospheres, particularly in a wide range of biomedical applications. This review article aims to summarize and analyze the most recent research on baghdadite's mechanical characteristics, apatite-forming capability, dissolution pattern, and physiochemical qualities as a scaffold for dentofacial tissuè regeneration purposes.
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Affiliation(s)
- Gamal
Abdel Nasser Atia
- Department
of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia, P.O. Box 41522, Egypt
| | - Hasi Rani Barai
- Department
of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Korea
| | - Hany K. Shalaby
- Department
of Oral Medicine, Periodontology and Oral Diagnosis, Faculty of Dentistry, Suez University, Suez, P.O. Box 43512, Egypt
| | - Naema Goda Ali
- Department
of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia, P.O. Box 41522, Egypt
| | - Shaimaa Mohammed Morsy
- Department
of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia, P.O. Box 41522, Egypt
| | - Mohamed mohamady Ghobashy
- Radiation
Research of Polymer Chemistry Department, National Center for Radiation
Research and Technology (NCRRT), Egyptian
Atomic Energy Authority, P.O. Box 8029, Cairo 13759, Egypt
| | - Hager Abdel Nasser Attia
- Department
of Molecular Biology and Chemistry, Faculty of Science, Alexandria University, Alexandria, P.O. Box 21526, Egypt
| | - Sang Woo Joo
- Department
of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Korea
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8
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Sadeghzade S, Liu J, Wang H, Li X, Cao J, Cao H, Tang B, Yuan H. Recent advances on bioactive baghdadite ceramic for bone tissue engineering applications: 20 years of research and innovation (a review). Mater Today Bio 2022; 17:100473. [PMID: 36345364 PMCID: PMC9636580 DOI: 10.1016/j.mtbio.2022.100473] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/08/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Various artificial bone graft substitutes based on ceramics have been developed over the last 20 years. Among them, calcium-silicate-based ceramics, which are osteoconductive and can attach directly to biological organs, have received great attention for bone tissue engineering applications. However, the degradation rate of calcium-silicate and bone formation is often out of balance, resulting in stress shielding (osteopenia). A new strategy to improve the drawbacks of these ceramics is incorporating trace elements such as Zn, Mg, and Zr into their lattice structures, enhancing their physical and biological properties. Recently, baghdadite (Ca3ZrSi2O9) ceramic, one of the most appealing calcium-silicate-based ceramics, has demonstrated high bioactivity, biocompatibility, biodegradability, and cell interaction. Because of its physical, mechanical, and biological properties and ability to be shaped using various fabrication techniques, baghdadite has found high potential in various biomedical applications such as coatings, fillers, cement, scaffolds, and drug delivery systems. Undoubtedly, there is a high potential for this newly developed ceramic to contribute significantly to therapies to provide a tremendous clinical outcome. This review paper aims to summarize and discuss the most relevant studies performed on baghdadite-based ceramics and composites by focusing on their behavior in vivo and in vitro.
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Busuioc C, Alecu AE, Costea CC, Beregoi M, Bacalum M, Raileanu M, Jinga SI, Deleanu IM. Composite Fibers Based on Polycaprolactone and Calcium Magnesium Silicate Powders for Tissue Engineering Applications. Polymers (Basel) 2022; 14:4611. [PMID: 36365605 PMCID: PMC9656997 DOI: 10.3390/polym14214611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 07/30/2023] Open
Abstract
The present work reports the synthesis and characterization of polycaprolactone fibers loaded with particulate calcium magnesium silicates, to form composite materials with bioresorbable and bioactive properties. The inorganic powders were achieved through a sol-gel method, starting from the compositions of diopside, akermanite, and merwinite, three mineral phases with suitable features for the field of hard tissue engineering. The fibrous composites were fabricated by electrospinning polymeric solutions with a content of 16% polycaprolactone and 5 or 10% inorganic powder. The physico-chemical evaluation from compositional and morphological points of view was followed by the biological assessment of powder bioactivity and scaffold biocompatibility. SEM investigation highlighted a significant reduction in fiber diameter, from around 3 μm to less than 100 nm after the loading stage, while EDX and FTIR spectra confirmed the existence of embedded mineral entities. The silicate phases were found be highly bioactive after 4 weeks of immersion in SBF, enriching the potential of the polymeric host that provides only biocompatibility and bioresorbability. Moreover, the cellular tests indicated a slight decrease in cell viability over the short-term, a compromise that can be accepted if the overall benefits of such multifunctional composites are considered.
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Affiliation(s)
- Cristina Busuioc
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
| | - Andrada-Elena Alecu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
| | - Claudiu-Constantin Costea
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
| | - Mihaela Beregoi
- National Institute of Materials Physics, RO-077125 Magurele, Romania
| | - Mihaela Bacalum
- National Institute of Physics and Nuclear Engineering, RO-077125 Magurele, Romania
| | - Mina Raileanu
- National Institute of Physics and Nuclear Engineering, RO-077125 Magurele, Romania
| | - Sorin-Ion Jinga
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
| | - Iuliana-Mihaela Deleanu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, RO-060042 Bucharest, Romania
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Aworinde AK, Taiwo OO, Adeosun SO, Akinlabi ET, Jonathan H, Olayemi OA, Joseph OO. Biodegradation profiles of chitin, chitosan and titanium reinforced polylactide biocomposites as scaffolds in bone tissue engineering. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2021. [DOI: 10.1080/25765299.2021.1971865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Abraham K. Aworinde
- Mechanical Engineering Department, College of Engineering, Covenant University, Ota, Nigeria
| | - Oluwaseyi O. Taiwo
- Metallurgical and Materials Engineering Department, University of Lagos, Lagos, Nigeria
| | - Samson O. Adeosun
- Metallurgical and Materials Engineering Department, University of Lagos, Lagos, Nigeria
| | - Esther T. Akinlabi
- Pan African University for Life and Earth Sciences Institute (PAULESI), Ibadan, Nigeria
| | - Hassana Jonathan
- Chemistry Department, College of Science and Technology, Covenant University, Ota, Nigeria
| | - Odunlami A. Olayemi
- Chemical Engineering Department, College of Engineering, Covenant University, Ota, Nigeria
| | - Olufunmilayo O. Joseph
- Mechanical Engineering Department, College of Engineering, Covenant University, Ota, Nigeria
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11
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Abdollahiyan P, Oroojalian F, Hejazi M, de la Guardia M, Mokhtarzadeh A. Nanotechnology, and scaffold implantation for the effective repair of injured organs: An overview on hard tissue engineering. J Control Release 2021; 333:391-417. [DOI: 10.1016/j.jconrel.2021.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/17/2022]
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12
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Ghorbanzadeh Sheish S, Emadi R, Ahmadian M, Sadeghzade S, Tavangarian F. Fabrication and Characterization of Polyvinylpyrrolidone-Eggshell Membrane-Reduced Graphene Oxide Nanofibers for Tissue Engineering Applications. Polymers (Basel) 2021; 13:913. [PMID: 33809630 PMCID: PMC8002296 DOI: 10.3390/polym13060913] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/04/2021] [Accepted: 03/10/2021] [Indexed: 12/26/2022] Open
Abstract
One of the best methods to prevent wound infection and speed up wound healing is wound dressing based on nanofiber-polymer scaffolds, which have acceptable antimicrobial performance and appropriate skin regeneration capabilities. In this paper, the electrospinning method was applied to synthesize the polyvinylpyrrolidone-acrylic acid hydrogel (PVPA)-eggshell membrane (ESM)-reduced graphene oxide (rGO) nanosheets nanocomposite dressings with different reduced graphene oxide contents (0, 0.5, 1, and 2 wt.%). Thus, smooth nanofibers were fabricated, including a high amount of rGO, which reduced the fiber diameter. Based on the results, rGO played an important role in water impermeability. The results showed that by increasing the rGO concentration from 0.5 to 2 wt%, the contact angle value increased persistently. Results showed that compared to PVPA-ESM, the mechanical strength and strain of PVPA-ESM/1 wt% rGO significantly enhanced 28% and 23%, respectively. Incorporation of 1 wt% rGO enhanced swelling ratio from 875% for PVPA-ESM to 1235% after 420 min, while increasing the rGO to 2 wt% increased the degradation rate of the composites. According to the in vitro cell culture studies, PVPA-ESM wound dressings with 0.5-1 wt% rGO content enhanced PC12 cell viability compared to the wound dressings without rGO nanosheets. Generally, rGO-loaded PVPA-ESM nanofiber wound dressing can be considered as a potential candidate to be used in skin regeneration applications.
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Affiliation(s)
| | - Rahmatollah Emadi
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; (R.E.); (M.A.)
| | - Mehdi Ahmadian
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; (R.E.); (M.A.)
| | - Sorour Sadeghzade
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; (R.E.); (M.A.)
- Mechanical Engineering Program, School of Science, Engineering and Technology, Penn State Harrisburg, Middletown, PA 17057, USA
| | - Fariborz Tavangarian
- Mechanical Engineering Program, School of Science, Engineering and Technology, Penn State Harrisburg, Middletown, PA 17057, USA
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Bioactivity Behavior Evaluation of PCL-Chitosan-Nanobaghdadite Coating on AZ91 Magnesium Alloy in Simulated Body Fluid. COATINGS 2020. [DOI: 10.3390/coatings10030231] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Polymer–ceramic composite coatings on magnesium-based alloys have attracted lots of attention in recent years, to control the speed of degradability and to enhance bioactivity and biocompatibility. In this study, to decrease the corrosion rate in a simulated body fluid (SBF) solution for long periods, to control degradability, and to enhance bioactivity, polycaprolactone–chitosan composite coatings with different percentages of baghdadite (0 wt.%, 3 wt.%, and 5 wt.%) were applied to an anodized AZ91 alloy. According to the results of the immersion test of the composite coating containing 3 wt.% baghdadite in a phosphate buffer solution (PBS), the corrosion rate decreased from 0.45 (for the AZ91 sample) to 0.11 mg/cm2·h after seven days of immersion. To evaluate the apatite formation capability of specimens, samples were immersed in an SBF solution. The results showed that the samples were bioactive as apatite layers formed on the surface of specimens. The composite coating containing 3 wt.% baghdadite showed the highest apatite-formation capability, with a controlled release of ions, and the lowest corrosion rate in the SBF.
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Applying Baghdadite/PCL/Chitosan Nanocomposite Coating on AZ91 Magnesium Alloy to Improve Corrosion Behavior, Bioactivity, and Biodegradability. COATINGS 2019. [DOI: 10.3390/coatings9120789] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Magnesium alloys have received a great amount of attention regarding being used in biomedical applications; however, they show high degradability, poor bioactivity, and biocompatibility. To improve these properties, surface modification and various types of coatings have been applied. In this study, an anodized AZ91 alloy was coated with a polymer matrix composite made of polycaprolactone/chitosan (PCL/Ch) with different percentages of baghdadite to improve its resistance to corrosion, bioactivity, and biocompatibility. The effects of different percentages of baghdadite (0 wt %, 1 wt %, 3 wt %, and 5 wt %) on the surface microstructure, corrosion resistance, roughness, and wettability were evaluated. The results indicated that the applied nano-polymer-ceramic coating including 3 wt % baghdadite was hydrophobic, which consequently increased the corrosion resistance and decreased the corrosion current density of the anodized AZ91 alloy. Coating with 3 wt % baghdadite increased the roughness of AZ91 from 0.329 ± 0.02 to 7.026 ± 0.31 μm. After applying the polymer-ceramic coating on the surface of anodized AZ91, the corrosion products changed into calcium–phosphate compounds instead of Mg(OH)2, which is more stable in a physiological environment.
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