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Ji Y, Park J, Kang Y, Lee S, Ju H, Choi S, Lee B, Kim M. Scaffold printing using biodegradable poly(1,4-butylene carbonate) ink: printability, in vivo physicochemical properties, and biocompatibility. Mater Today Bio 2021; 12:100129. [PMID: 34604731 PMCID: PMC8463913 DOI: 10.1016/j.mtbio.2021.100129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 11/21/2022] Open
Abstract
This study is the first to assess the applicability of biodegradable poly(1,4-butylene carbonate) (PBC) as a printing ink for fused deposition modeling (FDM). Here, PBC was successfully prepared via the bulk polycondensation of 1,4-butanediol and dimethyl carbonate. PBC was melted above 150°C in the heating chamber of an FDM printer, after which it flowed from the printing nozzle upon applying pressure and solidified at room temperature to create a three-dimensional (3D) scaffold structure. A 3D scaffold exactly matching the program design was obtained by controlling the temperature and pressure of the FDM printer. The compressive moduli of the printed PBC scaffold decreased as a function of implantation time. The printed PBC scaffold exhibited good in vitro biocompatibility, as well as in vivo neotissue formation and little host tissue response, which was proportional to the gradual biodegradation. Collectively, our findings demonstrated the feasibility of PBC as a suitable printing ink candidate for the creation of scaffolds via FDM printing.
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Affiliation(s)
- Y.B. Ji
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - J.Y. Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Y. Kang
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - S. Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - H.J. Ju
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - S. Choi
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - B.Y. Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - M.S. Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
- Research Institute Center, Medipolymers, Research Institute, Suwon 16522, South Korea
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Preparation of a cross-linked cartilage acellular matrix-poly (caprolactone-ran-lactide-ran-glycolide) film and testing its feasibility as an anti-adhesive film. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111283. [DOI: 10.1016/j.msec.2020.111283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/28/2020] [Accepted: 07/19/2020] [Indexed: 12/29/2022]
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Kwon DY, Park JH, Jang SH, Park JY, Jang JW, Min BH, Kim W, Lee HB, Lee J, Kim MS. Bone regeneration by means of a three‐dimensional printed scaffold in a rat cranial defect. J Tissue Eng Regen Med 2017; 12:516-528. [DOI: 10.1002/term.2532] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 07/18/2017] [Accepted: 07/27/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Doo Yeon Kwon
- Department of Molecular Science and TechnologyAjou University Suwon Korea
| | - Ji Hoon Park
- Department of Molecular Science and TechnologyAjou University Suwon Korea
| | - So Hee Jang
- Department of Molecular Science and TechnologyAjou University Suwon Korea
- Nature‐Inspired Mechanical System TeamKorea Institute of Machinery and Materials Daejeon Korea
| | - Joon Yeong Park
- Department of Molecular Science and TechnologyAjou University Suwon Korea
| | | | - Byoung Hyun Min
- Department of Molecular Science and TechnologyAjou University Suwon Korea
| | - Wan‐Doo Kim
- Nature‐Inspired Mechanical System TeamKorea Institute of Machinery and Materials Daejeon Korea
| | - Hai Bang Lee
- Department of Molecular Science and TechnologyAjou University Suwon Korea
| | - Junhee Lee
- Nature‐Inspired Mechanical System TeamKorea Institute of Machinery and Materials Daejeon Korea
| | - Moon Suk Kim
- Department of Molecular Science and TechnologyAjou University Suwon Korea
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Park JH, Kang HJ, Kwon DY, Lee BK, Lee B, Jang JW, Chun HJ, Kim JH, Kim MS. Biodegradable poly(lactide-co-glycolide-co-ε-caprolactone) block copolymers - evaluation as drug carriers for a localized and sustained delivery system. J Mater Chem B 2015; 3:8143-8153. [PMID: 32262871 DOI: 10.1039/c5tb01542a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
To develop an appropriate drug carrier for drug delivery systems, we prepared random poly(lactide-co-glycolide-co-ε-caprolactone) (PLGC) copolymers in comparison to commercial poly(lactic acid-co-glycolic acid) (PLGA) grades. The molecular weights of PLGC copolymers varied from 20k to 90k g mol-1 in the total polyester segments, when poly-l-lactic acid (PLLA), polyglycolic acid (PGA), and polycaprolactone (PCL) compositions were kept constant. The lengths of PLGC copolymers varied from 10 : 10 : 80 to 40 : 40 : 20 in the PLLA : PGA : PCL segments, when the molecular weights of the total polyester segments were kept constant. The crystalline properties of the PLGA copolymers can be changed to amorphous by the incorporation of PCL segments. In vitro and in vivo degradation behavior can be easily tuned from a few days to a few weeks by changing the chemical composition of the PLGC copolymers. The in vivo inflammation associated with the PLGC implants was less pronounced than that associated with PLGA. In this study, as drug delivery carriers for locally implantable paclitaxel (Ptx) dosages, Ptx-loaded PLGC and PLGA films showed in vitro and in vivo Ptx release for 35 days. The orders of Ptx release showed profiles similar to those of in vitro and in vivo degradation of PLGC. Using near-infrared (NIR) fluorescence imaging, we confirmed the sustained release of NIR over an extended period from IR-780-loaded PLGC and PLGA implanted in live animals. In conclusion, we confirmed that compared to PLGA, PLGC effectively acts as a drug carrier for drug delivery systems.
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Affiliation(s)
- Ji Hoon Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea.
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Yeon Kwon D, Seon Kwon J, Hun Park S, Hun Park J, Hee Jang S, Yun Yin X, Yun JH, Ho Kim J, Hyun Min B, Hee Lee J, Kim WD, Suk Kim M. A computer-designed scaffold for bone regeneration within cranial defect using human dental pulp stem cells. Sci Rep 2015; 5:12721. [PMID: 26234712 PMCID: PMC4522608 DOI: 10.1038/srep12721] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 07/06/2015] [Indexed: 12/26/2022] Open
Abstract
A computer-designed, solvent-free scaffold offer several potential advantages such as ease of customized manufacture and in vivo safety. In this work, we firstly used a computer-designed, solvent-free scaffold and human dental pulp stem cells (hDPSCs) to regenerate neo-bone within cranial bone defects. The hDPSCs expressed mesenchymal stem cell markers and served as an abundant source of stem cells with a high proliferation rate. In addition, hDPSCs showed a phenotype of differentiated osteoblasts in the presence of osteogenic factors (OF). We used solid freeform fabrication (SFF) with biodegradable polyesters (MPEG-(PLLA-co-PGA-co-PCL) (PLGC)) to fabricate a computer-designed scaffold. The SFF technology gave quick and reproducible results. To assess bone tissue engineering in vivo, the computer-designed, circular PLGC scaffold was implanted into a full-thickness cranial bone defect and monitored by micro-computed tomography (CT) and histology of the in vivo tissue-engineered bone. Neo-bone formation of more than 50% in both micro-CT and histology tests was observed at only PLGC scaffold with hDPSCs/OF. Furthermore, the PLGC scaffold gradually degraded, as evidenced by the fluorescent-labeled PLGC scaffold, which provides information to tract biodegradation of implanted PLGC scaffold. In conclusion, we confirmed neo-bone formation within a cranial bone defect using hDPSCs and a computer-designed PLGC scaffold.
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Affiliation(s)
- Doo Yeon Kwon
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Jin Seon Kwon
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Seung Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Ji Hun Park
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - So Hee Jang
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
- Nature-Inspired Mechanical System Team, Korea Institute of Machinery and Materials, Daejeon 305-343, Korea
| | - Xiang Yun Yin
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Jeong-Ho Yun
- Department of Dentistry, School of Medicine, Inha University, Incheon 440-711, Korea
| | - Jae Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Byoung Hyun Min
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
| | - Jun Hee Lee
- Nature-Inspired Mechanical System Team, Korea Institute of Machinery and Materials, Daejeon 305-343, Korea
| | - Wan-Doo Kim
- Nature-Inspired Mechanical System Team, Korea Institute of Machinery and Materials, Daejeon 305-343, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 443-759, Korea
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Stevanović M, Filipović N, Djurdjević J, Lukić M, Milenković M, Boccaccini A. 45S5Bioglass®-based scaffolds coated with selenium nanoparticles or with poly(lactide-co-glycolide)/selenium particles: Processing, evaluation and antibacterial activity. Colloids Surf B Biointerfaces 2015; 132:208-15. [PMID: 26047884 DOI: 10.1016/j.colsurfb.2015.05.024] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/27/2015] [Accepted: 05/13/2015] [Indexed: 12/16/2022]
Abstract
In the bone tissue engineering field, there is a growing interest in the application of bioactive glass scaffolds (45S5Bioglass(®)) due to their bone bonding ability, osteoconductivity and osteoinductivity. However, such scaffolds still lack some of the required functionalities to enable the successful formation of new bone, e.g. effective antibacterial properties. A large number of studies suggest that selenium (Se) has significant role in antioxidant protection, enhanced immune surveillance and modulation of cell proliferation. Selenium nanoparticles (SeNp) have also been reported to possess antibacterial as well as antiviral activities. In this investigation, uniform, stable, amorphous SeNp have been synthesized and additionally immobilized within spherical PLGA particles (PLGA/SeNp). These particles were used to coat bioactive glass-based scaffolds synthesized by the foam replica method. Samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM). SeNp, 45S5Bioglass(®)/SeNp and 45S5Bioglass(®)/PLGA/SeNp showed a considerable antibacterial activity against Gram positive bacteria, Staphylococcus aureus and Staphylococcus epidermidis, one of the main causative agents of orthopedic infections. The functionalized Se-coated bioactive glass scaffolds represent a new family of bioactive, antibacterial scaffolds for bone tissue engineering applications.
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Affiliation(s)
- Magdalena Stevanović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia.
| | - Nenad Filipović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Jelena Djurdjević
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Miodrag Lukić
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Marina Milenković
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia
| | - Aldo Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Microstructure, Mechanical, and Biological Properties of Porous Poly(vinylidene fluoride) Scaffolds Fabricated by Selective Laser Sintering. INT J POLYM SCI 2015. [DOI: 10.1155/2015/132965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Porous poly(vinylidene fluoride) (PVDF) scaffolds were prepared by selective laser sintering. The effects of laser energy density, ranging from 0.66 to 2.16 J/mm2, on microstructure and mechanical properties were investigated. At low energy density levels, PVDF particles could fuse well and the structure becomes dense with the increase of the energy density. Smoke and defects (such as holes) were observed when the energy density increased above 1.56 J/mm2which indicated decomposition of the PVDF powder. The scaffolds appeared to be light yellow and there was a reduction in tensile strength. The fabricated scaffolds were immersed into simulated body fluid for different time to evaluate biostability. In addition, MG63 cells were seeded and cultured for different days on the scaffolds. The testing results showed that the cells grew and spread well, indicating that PVDF scaffolds had good biocompatibility.
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