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Sadeghinia Z, Emadi R, Shamoradi F. A study of the electrophoretic deposition of polycaprolactone-chitosan-bioglass nanocomposite coating on stainless steel (316L) substrates. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211063506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this research, bioglass nanoparticles were synthesized via sol-gel method and a polycaprolactone-chitosan-bioglass nanocomposite coating was formed on SS316L substrate using electrophoretic deposition method. Then, the effects of voltage and deposition time on morphology, thickness, roughness, and wettability of final coating were investigated. Finally, biocompatibility and toxicity of the coating were evaluated. The results showed that increase of both time and voltage enhanced the thickness, roughness, and wettability of coating. Also, increase of deposition time increased the agglomeration. Therefore, it can be concluded that voltage of 20 V and time of 10 min are suitable for the formation of a uniform agglomerate-free coating. The presence of bioglass nanoparticles also led to the increase of roughness and improvement of polycaprolactone hydrophobicity. The results also showed higher bioactivity in polycaprolactone-chitosan-1% bioglass nanocomposite coating sample. This sample had a roughness ( Ra) of 1.048 ± 0.037 μm and thickness of 2.54 ± 0.14 μm. In summary, the results indicated that coating of polycaprolactone-chitosan-bioglass nanocomposite on SS316L substrate could be a suitable surface treatment to increase its in vivo bioactivity and biocompatibility.
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Affiliation(s)
- Zahra Sadeghinia
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Rahmatollah Emadi
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Fatemeh Shamoradi
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
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Petretta M, Gambardella A, Boi M, Berni M, Cavallo C, Marchiori G, Maltarello MC, Bellucci D, Fini M, Baldini N, Grigolo B, Cannillo V. Composite Scaffolds for Bone Tissue Regeneration Based on PCL and Mg-Containing Bioactive Glasses. BIOLOGY 2021; 10:biology10050398. [PMID: 34064398 PMCID: PMC8147831 DOI: 10.3390/biology10050398] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 12/21/2022]
Abstract
Simple Summary Polycaprolactone (PCL) is a bioresorbable and biocompatible polymer that has been widely used in long-term implants. However, when it comes to regenerative medicine, PCL suffers from some shortcomings such as a slow degradation rate, poor mechanical properties, and low cell adhesion. The incorporation of ceramics such as bioactive glasses into the PCL matrix has yielded a class of hybrid biomaterials with remarkably improved mechanical properties, controllable degradation rates, and enhanced bioactivity, which are suitable for bone tissue engineering. The use of conventional approaches (such as solvent casting and particulate leaching, phase separation, electrospinning, freeze drying, etc.) in realizing these composite scaffolds strongly affects the control of both the internal and the external architecture of scaffolds, including pore size, pore morphology, and overall structure porosity. Accordingly, 3D printing was used in this study because of the benefits offered over conventional methods, such as high flexibility in shape and size, high reproducibility, capabilities of precise control over internal architecture down to the microscale level, and a customized design that can be tailored to specific patient needs. The optimization of the scaffold structure was previously investigated in terms of architecture through the combination of the Taguchi method and CAD drawing, and, in this study, it was investigated by varying the composition of the composite material. Abstract Polycaprolactone (PCL) is widely used in additive manufacturing for the construction of scaffolds for tissue engineering because of its good bioresorbability, biocompatibility, and processability. Nevertheless, its use is limited by its inadequate mechanical support, slow degradation rate and the lack of bioactivity and ability to induce cell adhesion and, thus, bone tissue regeneration. In this study, we fabricated 3D PCL scaffolds reinforced with a novel Mg-doped bioactive glass (Mg-BG) characterized by good mechanical properties and biological reactivity. An optimization of the printing parameters and scaffold fabrication was performed; furthermore, an extensive microtopography characterization by scanning electron microscopy and atomic force microscopy was carried out. Nano-indentation tests accounted for the mechanical properties of the scaffolds, whereas SBF tests and cytotoxicity tests using human bone-marrow-derived mesenchymal stem cells (BM-MSCs) were performed to evaluate the bioactivity and in vitro viability. Our results showed that a 50/50 wt% of the polymer-to-glass ratio provides scaffolds with a dense and homogeneous distribution of Mg-BG particles at the surface and roughness twice that of pure PCL scaffolds. Compared to pure PCL (hardness H = 35 ± 2 MPa and Young’s elastic modulus E = 0.80 ± 0.05 GPa), the 50/50 wt% formulation showed H = 52 ± 11 MPa and E = 2.0 ± 0.2 GPa, hence, it was close to those of trabecular bone. The high level of biocompatibility, bioactivity, and cell adhesion encourages the use of the composite PCL/Mg-BG scaffolds in promoting cell viability and supporting mechanical loading in the host trabecular bone.
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Affiliation(s)
- Mauro Petretta
- IRCCS–Istituto Ortopedico Rizzoli, Laboratory RAMSES, Via di Barbiano 1/10, 40136 Bologna, Italy; (M.P.); (C.C.); (B.G.)
- RegenHU LTD, Z.I. Du Vivier 22, CH-1690 Villaz-St-Pierre, Switzerland
| | - Alessandro Gambardella
- IRCCS–Istituto Ortopedico Rizzoli, Surgical Sciences and Technologies Complex Structure, Via di Barbiano 1/10, 40136 Bologna, Italy; (A.G.); (G.M.); (M.F.)
| | - Marco Boi
- IRCCS–Istituto Ortopedico Rizzoli, Laboratory for Nanobiotechnology-NaBi, Via di Barbiano 1/10, 40136 Bologna, Italy;
- Correspondence: ; Tel.: +39-0516366715
| | - Matteo Berni
- IRCCS–Istituto Ortopedico Rizzoli, Medical Technology Laboratory Complex Structure, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Carola Cavallo
- IRCCS–Istituto Ortopedico Rizzoli, Laboratory RAMSES, Via di Barbiano 1/10, 40136 Bologna, Italy; (M.P.); (C.C.); (B.G.)
| | - Gregorio Marchiori
- IRCCS–Istituto Ortopedico Rizzoli, Surgical Sciences and Technologies Complex Structure, Via di Barbiano 1/10, 40136 Bologna, Italy; (A.G.); (G.M.); (M.F.)
| | - Maria Cristina Maltarello
- IRCCS–Istituto Ortopedico Rizzoli, BST Biomedical Science and Technologies Laboratory, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Devis Bellucci
- Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy; (D.B.); (V.C.)
| | - Milena Fini
- IRCCS–Istituto Ortopedico Rizzoli, Surgical Sciences and Technologies Complex Structure, Via di Barbiano 1/10, 40136 Bologna, Italy; (A.G.); (G.M.); (M.F.)
| | - Nicola Baldini
- IRCCS–Istituto Ortopedico Rizzoli, Laboratory for Nanobiotechnology-NaBi, Via di Barbiano 1/10, 40136 Bologna, Italy;
- IRCCS–Istituto Ortopedico Rizzoli, BST Biomedical Science and Technologies Laboratory, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Brunella Grigolo
- IRCCS–Istituto Ortopedico Rizzoli, Laboratory RAMSES, Via di Barbiano 1/10, 40136 Bologna, Italy; (M.P.); (C.C.); (B.G.)
| | - Valeria Cannillo
- Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, Italy; (D.B.); (V.C.)
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Lei T, Zhang W, Qian H, Lim PN, Thian ES, Lei P, Hu Y, Wang Z. Silicon-incorporated nanohydroxyapatite-reinforced poly(ε-caprolactone) film to enhance osteogenesis for bone tissue engineering applications. Colloids Surf B Biointerfaces 2020; 187:110714. [DOI: 10.1016/j.colsurfb.2019.110714] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 12/31/2022]
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Sutha S, Kavitha K, Karunakaran G, Rajendran V. In-vitro bioactivity, biocorrosion and antibacterial activity of silicon integrated hydroxyapatite/chitosan composite coating on 316L stainless steel implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4046-54. [DOI: 10.1016/j.msec.2013.05.047] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 05/05/2013] [Accepted: 05/23/2013] [Indexed: 11/16/2022]
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Boccaccini AR, Keim S, Ma R, Li Y, Zhitomirsky I. Electrophoretic deposition of biomaterials. J R Soc Interface 2010; 7 Suppl 5:S581-613. [PMID: 20504802 PMCID: PMC2952181 DOI: 10.1098/rsif.2010.0156.focus] [Citation(s) in RCA: 243] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Accepted: 05/05/2010] [Indexed: 12/24/2022] Open
Abstract
Electrophoretic deposition (EPD) is attracting increasing attention as an effective technique for the processing of biomaterials, specifically bioactive coatings and biomedical nanostructures. The well-known advantages of EPD for the production of a wide range of microstructures and nanostructures as well as unique and complex material combinations are being exploited, starting from well-dispersed suspensions of biomaterials in particulate form (microsized and nanoscale particles, nanotubes, nanoplatelets). EPD of biological entities such as enzymes, bacteria and cells is also being investigated. The review presents a comprehensive summary and discussion of relevant recent work on EPD describing the specific application of the technique in the processing of several biomaterials, focusing on (i) conventional bioactive (inorganic) coatings, e.g. hydroxyapatite or bioactive glass coatings on orthopaedic implants, and (ii) biomedical nanostructures, including biopolymer-ceramic nanocomposites, carbon nanotube coatings, tissue engineering scaffolds, deposition of proteins and other biological entities for sensors and advanced functional coatings. It is the intention to inform the reader on how EPD has become an important tool in advanced biomaterials processing, as a convenient alternative to conventional methods, and to present the potential of the technique to manipulate and control the deposition of a range of nanomaterials of interest in the biomedical and biotechnology fields.
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Affiliation(s)
- A R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen, Germany.
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