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Akoumeh R, Noun M, Ponnamma D, Al-Ejji M, Zadeh KM, Hawari AH, Song K, Hassan MK. A versatile route for the fabrication of micro-patterned polylactic-acid (PLA)-based membranes with tailored morphology via breath figure imprinting. SOFT MATTER 2024; 20:3787-3797. [PMID: 38639209 DOI: 10.1039/d4sm00107a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Breath figure imprinting, based on surface instabilities combined with fast polymer evaporation in a humid environment, enables the creation of micro-patterned membranes with tailored pore sizes. Despite being a simple procedure, it is still challenging to fully understand the dynamics behind the formation of hierarchical structuring. In this work, we used the breath figure technique to prepare porous PLA-based (polylactic acid) membranes with two distinctive additives, polyvinylidene fluoride (PVDF) and zinc oxide nanoparticles (ZnO NPs). The selection of these additives was governed by their unique properties and the potential synergistic effects; when blended with PLA, the addition of NPs leads to more uniform structures with tunable characteristics and potential multifunctionality. This article sheds light on the multifaced interactions that intricate the interplays between PLA, PVDF, and ZnO, thus governing their assembly. Through a comprehensive investigation, we scrutinize the impact of blending PVDF and different concentrations of ZnO NPs on the morphology and chemical properties of the final self-assembled PLA membranes while presenting an advanced understanding of the potential applications of PLA-self-assembly porous membranes in various industrial sectors.
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Affiliation(s)
- Rayane Akoumeh
- Center for Advanced Materials Qatar University P.O. BOX 2713, Doha, Qatar.
| | - Manale Noun
- Lebanese Atomic Energy Commission, National Council for Scientific Research, B. P. 11-8281, Riad El Solh 1107, 2260 Beirut, Lebanon
| | - Deepalekshmi Ponnamma
- Materials Science and Technology Program, Department of Mathematics, Statistics and Physics, College of Arts and Sciences, Qatar University, 2713, Doha, Qatar
| | - Maryam Al-Ejji
- Center for Advanced Materials Qatar University P.O. BOX 2713, Doha, Qatar.
| | - Khadija M Zadeh
- Center for Advanced Materials Qatar University P.O. BOX 2713, Doha, Qatar.
| | - Alaa H Hawari
- Department of Civil and Environmental Engineering, Qatar University, 2713 Doha, Qatar
| | - Kenan Song
- Associate Professor of Mechanical Engineering, College of Engineering, University of Georgia (UGA), 302 E. Campus Rd., Athens 30602, USA
- Adjunct Professor at the School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, AZ 85212, USA
| | - Mohammad K Hassan
- Center for Advanced Materials Qatar University P.O. BOX 2713, Doha, Qatar.
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2
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Chen J. Current advances in anisotropic structures for enhanced osteogenesis. Colloids Surf B Biointerfaces 2023; 231:113566. [PMID: 37797464 DOI: 10.1016/j.colsurfb.2023.113566] [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: 08/26/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/07/2023]
Abstract
Bone defects are a challenge to healthcare systems, as the aging population experiences an increase in bone defects. Despite the development of biomaterials for bone fillers and scaffolds, there is still an unmet need for a bone-mimetic material. Cortical bone is highly anisotropic and displays a biological liquid crystalline (LC) arrangement, giving it exceptional mechanical properties and a distinctive microenvironment. However, the biofunctions, cell-tissue interactions, and molecular mechanisms of cortical bone anisotropic structure are not well understood. Incorporating anisotropic structures in bone-facilitated scaffolds has been recognised as essential for better outcomes. Various approaches have been used to create anisotropic micro/nanostructures, but biomimetic bone anisotropic structures are still in the early stages of development. Most scaffolds lack features at the nanoscale, and there is no comprehensive evaluation of molecular mechanisms or characterisation of calcium secretion. This manuscript provides a review of the latest development of anisotropic designs for osteogenesis and discusses current findings on cell-anisotropic structure interactions. It also emphasises the need for further research. Filling knowledge gaps will enable the fabrication of scaffolds for improved and more controllable bone regeneration.
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Affiliation(s)
- Jishizhan Chen
- UCL Mechanical Engineering, University College London, WC1E 7JE, UK.
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3
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Sandanamsamy L, Harun WSW, Ishak I, Romlay FRM, Kadirgama K, Ramasamy D, Idris SRA, Tsumori F. A comprehensive review on fused deposition modelling of polylactic acid. PROGRESS IN ADDITIVE MANUFACTURING 2022; 8:1-25. [PMID: 38625345 PMCID: PMC9619022 DOI: 10.1007/s40964-022-00356-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 10/15/2022] [Indexed: 05/13/2023]
Abstract
Fused Deposition Modelling (FDM) is one of the additive manufacturing (AM) techniques that have emerged as the most feasible and prevalent approach for generating functional parts due to its ability to produce neat and intricate parts. FDM mainly utilises one of the widely used polymers, polylactic acid, also known as polylactide (PLA). It is an aliphatic polyester material and biocompatible thermoplastic, with the best design prospects due to its eco-friendly properties; when PLA degrades, it breaks down into water and carbon dioxide, neither of which are hazardous to the environment. However, PLA has its limitations of poor mechanical properties. Therefore, a filler reinforcement may enhance the characteristics of PLA and produce higher-quality FDM-printed parts. The processing parameters also play a significant role in the final result of the printed parts. This review aims to study and discover the properties of PLA and the optimum processing parameters. This review covers PLA in FDM, encompassing its mechanical properties, processing parameters, characterisation, and applications. A comprehensive description of FDM processing parameters is outlined as it plays a vital role in determining the quality of a printed product. In addition, PLA polymer is highly desirable for various field industrial applications such as in a medical, automobile, and electronic, given its excellent thermoplastic and biodegradability properties.
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Affiliation(s)
- L. Sandanamsamy
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang Malaysia
| | - W. S. W. Harun
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang Malaysia
| | - I. Ishak
- Faculty of Manufacturing and Mechatronic Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Malaysia
| | - F. R. M. Romlay
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang Malaysia
| | - K. Kadirgama
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang Malaysia
| | - D. Ramasamy
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Gambang, 26300 Kuantan, Pahang Malaysia
| | - S. R. A. Idris
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, 26600 Pekan, Pahang Malaysia
| | - F. Tsumori
- Department of Aeronautics and Astronautics, Faculty of Engineering, Kyushu University, 744 Motooka Nishi-Ku, Fukuoka, 819-0395 Japan
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Creation of a Stable Nanofibrillar Scaffold Composed of Star-Shaped PLA Network Using Sol-Gel Process during Electrospinning. Molecules 2022; 27:molecules27134154. [PMID: 35807400 PMCID: PMC9268024 DOI: 10.3390/molecules27134154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 11/17/2022] Open
Abstract
PLA nanofibers are of great interest in tissue engineering due to their biocompatibility and morphology; moreover, their physical properties can be tailored for long-lasting applications. One of the common and efficient methods to improve polymer properties and slow down their degradation is sol-gel covalent crosslinking. However, this method usually results in the formation of gels or films, which undervalues the advantages of nanofibers. Here, we describe a dual process sol-gel/electrospinning to improve the mechanical properties and stabilize the degradation of PLA scaffolds. For this purpose, we synthesized star-shaped PLAs and functionalized them with triethoxysilylpropyl groups (StarPLA-PTES) to covalently react during nanofibers formation. To achieve this, we evaluated the use of (1) a polymer diluent and (2) different molecular weights of StarPLA on electrospinnability, StarPLA-PTES condensation time and crosslinking efficiency. Our results show that the diluent allowed the fiber formation and reduced the condensation time, while the addition of low-molecular-weight StarPLA-PTES improved the crosslinking degree, resulting in stable matrices even after 6 months of degradation. Additionally, these materials showed biocompatibility and allowed the proliferation of fibroblasts. Overall, these results open the door to the fabrication of scaffolds with enhanced stability and prospective long-term applications.
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Perier-Metz C, Cipitria A, Hutmacher DW, Duda GN, Checa S. An in silico model predicts the impact of scaffold design in large bone defect regeneration. Acta Biomater 2022; 145:329-341. [PMID: 35417799 DOI: 10.1016/j.actbio.2022.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/16/2022] [Accepted: 04/06/2022] [Indexed: 12/27/2022]
Abstract
Large bone defects represent a clinical challenge for which the implantation of scaffolds appears as a promising strategy. However, their use in clinical routine is limited, in part due to a lack of understanding of how scaffolds should be designed to support regeneration. Here, we use the power of computer modeling to investigate mechano-biological principles behind scaffold-guided bone regeneration and the influence of scaffold design on the regeneration process. Computer model predictions are compared to experimental data of large bone defect regeneration in sheep. We identified two main key players in scaffold-guided regeneration: (1) the scaffold surface guidance of cellular migration and tissue formation processes and (2) the stimulation of progenitor cell activity by the scaffold material composition. In addition, lower scaffold surface-area-to-volume ratio was found to be beneficial for bone regeneration due to enhanced cellular migration. To a lesser extent, a reduced scaffold Young's modulus favored bone formation. STATEMENT OF SIGNIFICANCE: 3D-printed scaffolds offer promising treatment strategies for large bone defects but their broader clinical use requires a more thorough understanding of their interaction with the bone regeneration process. The predictions of our in silico model compared to two experimental set-ups highlighted the importance of (1) the scaffold surface guidance of cellular migration and tissue formation processes and (2) the scaffold material stimulation of progenitor cell activity. In addition, the model was used to investigate the effect on the bone regeneration process of (1) the scaffold surface-area-to-volume ratio, with lower ratios favoring more bone growth, and (2) the scaffold material properties, with stiffer scaffold materials yielding a lower bone growth.
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Affiliation(s)
- Camille Perier-Metz
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Augustenburger Platz 1, Berlin 13353, Germany; MINES ParisTech - PSL Research University, 60 Boulevard Saint-Michel, Paris 75272, France; Berlin-Brandenburg School for Regenerative Therapies, Augustenburger Platz 1, Berlin 13353, Germany
| | - Amaia Cipitria
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, Potsdam 14476, Germany; Biodonostia Health Research Institute, Pº Dr. Beguiristain s/n, San Sebastian 20014, Spain; IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
| | - Dietmar W Hutmacher
- Center in Regenerative Medicine, Queensland University of Technology (QUT), 60 Musk Avenue, Brisbane, Kelvin Grove QLD 4059, Australia; Science and Engineering Faculty (SEF), School of Mechanical, Medical and Process Engineering (MMPE), QUT, Brisbane QLD 4000, Australia; ARC Training Center for Multiscale 3D Imaging, Modeling, and Manufacturing, Queensland University of Technology, Brisbane QLD 4059, Australia; Center for Biomedical Technologies, Queensland University of Technology, Brisbane QLD 4059, Australia
| | - Georg N Duda
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Augustenburger Platz 1, Berlin 13353, Germany; Berlin-Brandenburg School for Regenerative Therapies, Augustenburger Platz 1, Berlin 13353, Germany; BIH Center for Regenerative Therapies at Charité, Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin 13353, Germany
| | - Sara Checa
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Julius Wolff Institute, Augustenburger Platz 1, Berlin 13353, Germany; Berlin-Brandenburg School for Regenerative Therapies, Augustenburger Platz 1, Berlin 13353, Germany.
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6
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Sun X, Liu Y, Wei Y, Wang Y. Chirality-induced bionic scaffolds in bone defects repair-a review. Macromol Biosci 2022; 22:e2100502. [PMID: 35246939 DOI: 10.1002/mabi.202100502] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/27/2022] [Indexed: 11/12/2022]
Abstract
Due to lack of amino sugar with aging, people will suffer from various epidemic bone diseases called "undead cancer" by the World Health Organization. The key problem in bone tissue engineering that has not been completely resolved is the repair of critical large-scale bone and cartilage defects. The chirality of the extracellular matrix plays a decisive role in the physiological activity of bone cells and the occurrence of bone tissue, but the mechanism of chirality in regulating cell adhesion and growth is still in the early stage of exploration. This paper reviews the application progress of chirality-induced bionic scaffolds in bone defects repair based on "soft" and "hard" scaffolds. The aim is to summarize the effects of different chiral structures (L-shaped and D-shaped) in the process of inducing bionic scaffolds in bone defects repair. In addition, many technologies and methods as well as issues worthy of special consideration for preparing chirality-induced bionic scaffolds are also introduced. We expect that this work can provide inspiring ideas for designing new chirality-induced bionic scaffolds and promote the development of chirality in bone tissue engineering. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Xinyue Sun
- Department of Chemistry, School of Science, Tianjin University, Tianjin, 300354, P. R. China
| | - Yue Liu
- Department of Spinal Surgery, Tianjin Hospital, Tianjin, 300211, P. R. China
| | - Yuping Wei
- Department of Chemistry, School of Science, Tianjin University, Tianjin, 300354, P. R. China
| | - Yong Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin, 300354, P. R. China
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Furuhata M, Takayama T, Yamamoto T, Ozawa Y, Senoo M, Ozaki M, Yamano S, Sato S. Real-time assessment of guided bone regeneration in critical size mandibular bone defects in rats using collagen membranes with adjunct fibroblast growth factor-2. J Dent Sci 2021; 16:1170-1181. [PMID: 34484585 PMCID: PMC8403809 DOI: 10.1016/j.jds.2021.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/14/2021] [Indexed: 10/27/2022] Open
Abstract
Background/purpose Fibroblast growth factor-2 (FGF-2) regulates bone formation. The concept of guided bone regeneration using a resorbable collagen membrane (RCM) is generally accepted in implant dentistry. This study aimed to investigate the bone healing pattern in rat mandibular bone defects in real-time with and without RCM containing FGF-2 (RCM/FGF-2). Materials and methods Critical-size circular bone defects (4.0 mm diameter) were created on both sides of the rat mandibular bone. The defects were randomly divided into the following groups: control, RCM alone, RCM containing low (0.5 μg) or high (2.0 μg) concentration of FGF-2. We performed real-time in vivo micro-computerized tomography scans at the baseline and at 2, 4, and 6 weeks, and measured the volume of newly formed bone (NFB), bone mineral density (BMD) of NFB, and the closure percentage of the NFB area. At 6 weeks, the mandibular specimens were assessed histologically and histomorphometrically to evaluate the area of new bone regeneration. Results Real-time assessment revealed a significant increase in the volume, BMD, and closure percentage of the NFB area in the RCM/FGF-2-treated groups than that in the control and RCM groups. In the H-FGF-2 group, the volume and BMD of NFB exhibited a significant increase at 6 weeks than that at the baseline. Histological evaluation revealed the presence of osteoblasts, osteocytes, and blood vessels within the NFB. Conclusion The real-time in vivo experiment demonstrated that RCM/FGF-2 effectively promoted bone regeneration within the critical-size mandibular defects in rats and verified new bone formation starting in the early postoperative phase.
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Affiliation(s)
- Mitsuaki Furuhata
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Tadahiro Takayama
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Takanobu Yamamoto
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan
| | - Yasumasa Ozawa
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan
| | - Motoki Senoo
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry, Tokyo, Japan
| | - Manami Ozaki
- Department of Oral Health Sciences, Nihon University School of Dentistry, Tokyo, Japan.,Division of Functional Morphology, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Seiichi Yamano
- Department of Prosthodontics, New York University College of Dentistry, NY, USA
| | - Shuichi Sato
- Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.,Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
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8
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Xu Y, Patino Gaillez M, Rothe R, Hauser S, Voigt D, Pietzsch J, Zhang Y. Conductive Hydrogels with Dynamic Reversible Networks for Biomedical Applications. Adv Healthc Mater 2021; 10:e2100012. [PMID: 33930246 DOI: 10.1002/adhm.202100012] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/21/2021] [Indexed: 12/30/2022]
Abstract
Conductive hydrogels (CHs) are emerging as a promising and well-utilized platform for 3D cell culture and tissue engineering to incorporate electron signals as biorelevant physical cues. In conventional covalently crosslinked conductive hydrogels, the network dynamics (e.g., stress relaxation, shear shining, and self-healing) required for complex cellular functions and many biomedical utilities (e.g., injection) cannot be easily realized. In contrast, dynamic conductive hydrogels (DCHs) are fabricated by dynamic and reversible crosslinks. By allowing for the breaking and reforming of the reversible linkages, DCHs can provide dynamic environments for cellular functions while maintaining matrix integrity. These dynamic materials can mimic some properties of native tissues, making them well-suited for several biotechnological and medical applications. An overview of the design, synthesis, and engineering of DCHs is presented in this review, focusing on the different dynamic crosslinking mechanisms of DCHs and their biomedical applications.
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Affiliation(s)
- Yong Xu
- Technische Universität Dresden B CUBE Center for Molecular Bioengineering Dresden 01307 Germany
| | - Michelle Patino Gaillez
- Technische Universität Dresden B CUBE Center for Molecular Bioengineering Dresden 01307 Germany
| | - Rebecca Rothe
- Helmholtz‐Zentrum Dresden‐Rossendorf (HZDR) Institute of Radiopharmaceutical Cancer Research Department of Radiopharmaceutical and Chemical Biology Dresden 01328 Germany
- Technische Universität Dresden School of Science Faculty of Chemistry and Food Chemistry Dresden 01062 Germany
| | - Sandra Hauser
- Helmholtz‐Zentrum Dresden‐Rossendorf (HZDR) Institute of Radiopharmaceutical Cancer Research Department of Radiopharmaceutical and Chemical Biology Dresden 01328 Germany
| | - Dagmar Voigt
- Technische Universität Dresden, School of Science Faculty of Biology Institute of Botany Dresden 01062 Germany
| | - Jens Pietzsch
- Helmholtz‐Zentrum Dresden‐Rossendorf (HZDR) Institute of Radiopharmaceutical Cancer Research Department of Radiopharmaceutical and Chemical Biology Dresden 01328 Germany
- Technische Universität Dresden School of Science Faculty of Chemistry and Food Chemistry Dresden 01062 Germany
| | - Yixin Zhang
- Technische Universität Dresden B CUBE Center for Molecular Bioengineering Dresden 01307 Germany
- Cluster of Excellence Physics of Life Technische Universität Dresden Dresden 01062 Germany
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9
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Lyyra I, Leino K, Hukka T, Hannula M, Kellomäki M, Massera J. Impact of Glass Composition on Hydrolytic Degradation of Polylactide/Bioactive Glass Composites. MATERIALS 2021; 14:ma14030667. [PMID: 33535590 PMCID: PMC7867177 DOI: 10.3390/ma14030667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 01/09/2023]
Abstract
Understanding the degradation of a composite material is crucial for tailoring its properties based on the foreseen application. In this study, poly-L,DL-lactide 70/30 (PLA70) was compounded with silicate or phosphate bioactive glass (Si-BaG and P-BaG, respectively). The composite processing was carried out without excessive thermal degradation of the polymer and resulted in porous composites with lower mechanical properties than PLA70. The loss in mechanical properties was associated with glass content rather than the glass composition. The degradation of the composites was studied for 40 weeks in Tris buffer solution Adding Si-BaG to PLA70 accelerated the polymer degradation in vitro more than adding P-BaG, despite the higher reactivity of the P-BaG. All the composites exhibited a decrease in mechanical properties and increased hydrophilicity during hydrolysis compared to the PLA70. Both glasses dissolved through the polymer matrix with a linear, predictable release rate of ions. Most of the P-BaG had dissolved before 20 weeks in vitro, while there was still Si-BaG left after 40 weeks. This study introduces new polymer/bioactive glass composites with tailorable mechanical properties and ion release for bone regeneration and fixation applications.
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Affiliation(s)
- Inari Lyyra
- Faculty of Medicine and Health Technology, Tampere University, 33720 Tampere, Finland; (I.L.); (K.L.); (M.H.); (M.K.)
| | - Katri Leino
- Faculty of Medicine and Health Technology, Tampere University, 33720 Tampere, Finland; (I.L.); (K.L.); (M.H.); (M.K.)
| | - Terttu Hukka
- Faculty of Engineering and Natural Sciences, Chemistry and Advanced Materials, P.O. Box 541, Tampere University, 33720 Tampere, Finland;
| | - Markus Hannula
- Faculty of Medicine and Health Technology, Tampere University, 33720 Tampere, Finland; (I.L.); (K.L.); (M.H.); (M.K.)
| | - Minna Kellomäki
- Faculty of Medicine and Health Technology, Tampere University, 33720 Tampere, Finland; (I.L.); (K.L.); (M.H.); (M.K.)
| | - Jonathan Massera
- Faculty of Medicine and Health Technology, Tampere University, 33720 Tampere, Finland; (I.L.); (K.L.); (M.H.); (M.K.)
- Correspondence:
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10
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Perier-Metz C, Duda GN, Checa S. Mechano-Biological Computer Model of Scaffold-Supported Bone Regeneration: Effect of Bone Graft and Scaffold Structure on Large Bone Defect Tissue Patterning. Front Bioeng Biotechnol 2020; 8:585799. [PMID: 33262976 PMCID: PMC7686036 DOI: 10.3389/fbioe.2020.585799] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/05/2020] [Indexed: 12/04/2022] Open
Abstract
Large segmental bone defects represent a clinical challenge for which current treatment procedures have many drawbacks. 3D-printed scaffolds may help to support healing, but their design process relies mainly on trial and error due to a lack of understanding of which scaffold features support bone regeneration. The aim of this study was to investigate whether existing mechano-biological rules of bone regeneration can also explain scaffold-supported bone defect healing. In addition, we examined the distinct roles of bone grafting and scaffold structure on the regeneration process. To that end, scaffold-surface guided migration and tissue deposition as well as bone graft stimulatory effects were included in an in silico model and predictions were compared to in vivo data. We found graft osteoconductive properties and scaffold-surface guided extracellular matrix deposition to be essential features driving bone defect filling in a 3D-printed honeycomb titanium structure. This knowledge paves the way for the design of more effective 3D scaffold structures and their pre-clinical optimization, prior to their application in scaffold-based bone defect regeneration.
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Affiliation(s)
- Camille Perier-Metz
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany.,MINES ParisTech - PSL Research University (Paris Sciences & Lettres), Paris, France
| | - Georg N Duda
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany.,Berlin Institute of Health (BIH) Center for Regenerative Therapies, Charité-Universitätsmedizin, Berlin, Germany
| | - Sara Checa
- Julius Wolff Institute, Charité-Universitätsmedizin, Berlin, Germany
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11
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Lopez de Armentia S, del Real JC, Paz E, Dunne N. Advances in Biodegradable 3D Printed Scaffolds with Carbon-Based Nanomaterials for Bone Regeneration. MATERIALS 2020; 13:ma13225083. [PMID: 33187218 PMCID: PMC7697295 DOI: 10.3390/ma13225083] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 01/09/2023]
Abstract
Bone possesses an inherent capacity to fix itself. However, when a defect larger than a critical size appears, external solutions must be applied. Traditionally, an autograft has been the most used solution in these situations. However, it presents some issues such as donor-site morbidity. In this context, porous biodegradable scaffolds have emerged as an interesting solution. They act as external support for cell growth and degrade when the defect is repaired. For an adequate performance, these scaffolds must meet specific requirements: biocompatibility, interconnected porosity, mechanical properties and biodegradability. To obtain the required porosity, many methods have conventionally been used (e.g., electrospinning, freeze-drying and salt-leaching). However, from the development of additive manufacturing methods a promising solution for this application has been proposed since such methods allow the complete customisation and control of scaffold geometry and porosity. Furthermore, carbon-based nanomaterials present the potential to impart osteoconductivity and antimicrobial properties and reinforce the matrix from a mechanical perspective. These properties make them ideal for use as nanomaterials to improve the properties and performance of scaffolds for bone tissue engineering. This work explores the potential research opportunities and challenges of 3D printed biodegradable composite-based scaffolds containing carbon-based nanomaterials for bone tissue engineering applications.
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Affiliation(s)
- Sara Lopez de Armentia
- Institute for Research in Technology/Mechanical Engineering Dept., Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain; (S.L.d.A.); (J.C.d.R.)
| | - Juan Carlos del Real
- Institute for Research in Technology/Mechanical Engineering Dept., Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain; (S.L.d.A.); (J.C.d.R.)
| | - Eva Paz
- Institute for Research in Technology/Mechanical Engineering Dept., Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain; (S.L.d.A.); (J.C.d.R.)
- Correspondence: (E.P.); (N.D.)
| | - Nicholas Dunne
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Correspondence: (E.P.); (N.D.)
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Kim HY, Chun SY, Lee EH, Kim B, Ha YS, Chung JW, Lee JN, Kim BS, Oh SH, Kwon TG. Bladder Regeneration Using a Polycaprolactone Scaffold with a Gradient Structure and Growth Factors in a Partially Cystectomized Rat Model. J Korean Med Sci 2020; 35:e374. [PMID: 33107231 PMCID: PMC7590654 DOI: 10.3346/jkms.2020.35.e374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/20/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Tissue engineering can be used for bladder augmentation. However, conventional scaffolds result in fibrosis and graft shrinkage. This study applied an alternative polycaprolactone (PCL)-based scaffold (diameter = 5 mm) with a noble gradient structure and growth factors (GFs) (epidermal growth factor, vascular endothelial growth factor, and basic fibroblast growth factor) to enhance bladder tissue regeneration in a rat model. METHODS Partially excised urinary bladders of 5-week-old male Slc:SD rats were reconstructed with the scaffold (scaffold group) or the scaffold combined with GFs (GF group) and compared with sham-operated (control group) and untreated rats (partial cystectomy group). Evaluations of bladder volume, histology, immunohistochemistry (IHC), and molecular markers were performed at 4, 8, and 12 weeks after operation. RESULTS The bladder volumes of the scaffold and GF group recovered to the normal range, and those of the GF group showed more enhanced augmentation. Histological evaluations revealed that the GF group showed more organized urothelial lining, dense extracellular matrix, frequent angiogenesis, and enhanced smooth muscle bundle regeneration than the scaffold group. IHC for α-smooth muscle actin, pan-cytokeratin, α-bungarotoxin, and CD8 revealed that the GF group showed high formation of smooth muscle, blood vessel, urothelium, neuromuscular junction and low immunogenicity. Concordantly, real-time polymerase chain reaction experiments revealed that the GF group showed a higher expression of transcripts associated with smooth muscle and urothelial differentiation. In a 6-month in vivo safety analysis, the GF group showed normal histology. CONCLUSION This study showed that a PCL scaffold with a gradient structure incorporating GFs improved bladder regeneration functionally and histologically.
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Affiliation(s)
- Ho Yong Kim
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Korea
| | - So Young Chun
- BioMedical Research Institute, Kyungpook National University Hospital, Daegu, Korea
| | - Eun Hye Lee
- Joint Institution for Regenerative Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Bomi Kim
- BioMedical Research Institute, Kyungpook National University Hospital, Daegu, Korea
| | - Yun Sok Ha
- Department of Urology, Kyungpook National University Hospital, Daegu, Korea
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jae Wook Chung
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
- Department of Urology, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Jun Nyung Lee
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
- Department of Urology, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Bum Soo Kim
- Department of Urology, Kyungpook National University Hospital, Daegu, Korea
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Se Heang Oh
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Korea.
| | - Tae Gyun Kwon
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
- Department of Urology, Kyungpook National University Chilgok Hospital, Daegu, Korea.
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Hwang C, Park S, Kang IG, Kim HE, Han CM. Tantalum-coated polylactic acid fibrous membranes for guided bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111112. [DOI: 10.1016/j.msec.2020.111112] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 12/20/2022]
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Pistone A, Celesti C, Piperopoulos E, Ashok D, Cembran A, Tricoli A, Nisbet D. Engineering of Chitosan-Hydroxyapatite-Magnetite Hierarchical Scaffolds for Guided Bone Growth. MATERIALS 2019; 12:ma12142321. [PMID: 31330857 PMCID: PMC6678855 DOI: 10.3390/ma12142321] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 12/17/2022]
Abstract
Bioabsorbable materials have received increasing attention as innovative systems for the development of osteoconductive biomaterials for bone tissue engineering. In this paper, chitosan-based composites were synthesized adding hydroxyapatite and/or magnetite in a chitosan matrix by in situ precipitation technique. Composites were characterized by optical and electron microscopy, thermogravimetric analyses (TGA), x-ray diffraction (XRD), and in vitro cell culture studies. Hydroxyapatite and magnetite were found to be homogeneously dispersed in the chitosan matrix and the composites showed superior biocompatibility and the ability to support cell attachment and proliferation; in particular, the chitosan/hydroxyapatite/magnetite composite (CS/HA/MGN) demonstrated superior bioactivity with respect to pure chitosan (CS) and to the chitosan/hydroxyapatite (CS/HA) scaffolds.
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Affiliation(s)
- Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy.
| | - Consuelo Celesti
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy
| | - Elpida Piperopoulos
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy
| | - Deepu Ashok
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, Australian National University, Canberra ACT 2601, Australia
| | - Arianna Cembran
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, Australian National University, Canberra ACT 2601, Australia
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Electrical and Energy Engineering, Australian National University, Canberra ACT 2601, Australia
| | - David Nisbet
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, Australian National University, Canberra ACT 2601, Australia
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Gil-Castell O, Badia J, Ingles-Mascaros S, Teruel-Juanes R, Serra A, Ribes-Greus A. Polylactide-based self-reinforced composites biodegradation: Individual and combined influence of temperature, water and compost. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Anouz R, Repanas A, Schwarz E, Groth T. Novel Surface Coatings Using Oxidized Glycosaminoglycans as Delivery Systems of Bone Morphogenetic Protein 2 (BMP‐2) for Bone Regeneration. Macromol Biosci 2018; 18:e1800283. [DOI: 10.1002/mabi.201800283] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/03/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Reema Anouz
- Department of Biomedical MaterialsMartin Luther University Halle‐Wittenberg Heinrich‐Damerow‐Strasse 4 06120 Halle (Saale) Germany
| | - Alexandros Repanas
- Department of Biomedical MaterialsMartin Luther University Halle‐Wittenberg Heinrich‐Damerow‐Strasse 4 06120 Halle (Saale) Germany
| | - Elisabeth Schwarz
- Institute of PharmacyMartin Luther University Halle‐Wittenberg Wolfgang‐Langenbeck‐Strasse 4 06120 Halle (Saale) Germany
| | - Thomas Groth
- Department of Biomedical MaterialsMartin Luther University Halle‐Wittenberg Heinrich‐Damerow‐Strasse 4 06120 Halle (Saale) Germany
- Interdisciplinary Center of Material Research and Interdisciplinary Center of Applied ResearchMartin Luther University Halle‐Wittenberg 06099 Halle (Saale) Germany
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Xing R, Huang R, Qi W, Su R, He Z. Three-dimensionally printed bioinspired superhydrophobic PLA membrane for oil-water separation. AIChE J 2018. [DOI: 10.1002/aic.16347] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ruizhe Xing
- State Key Laboratory of Chemical Engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin, 300072 People's Republic of China
| | - Renliang Huang
- School of Environmental Science and Engineering, Tianjin University; Tianjin, 300072 People's Republic of China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin, 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin University; Tianjin, 300072 People's Republic of China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology; Tianjin University; Tianjin, 300072 People's Republic of China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin, 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin University; Tianjin, 300072 People's Republic of China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology; Tianjin University; Tianjin, 300072 People's Republic of China
| | - Zhimin He
- State Key Laboratory of Chemical Engineering; School of Chemical Engineering and Technology, Tianjin University; Tianjin, 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin University; Tianjin, 300072 People's Republic of China
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18
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TERAMURA Y. Design and Application of Cell Glue. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yuji TERAMURA
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo
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Guo Z, Wu S, Li H, Li Q, Wu G, Zhou C. In vitro evaluation of electrospun PLGA/PLLA/PDLLA blend fibers loaded with naringin for guided bone regeneration. Dent Mater J 2017; 37:317-324. [PMID: 29279541 DOI: 10.4012/dmj.2016-220] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The present study was to evaluate fiber mesh loaded with naringin via electrospinning to guide bone regeneration in vitro. The naringin-loaded fiber mesh was prepared via elctrospinning of PLGA, PLLA, PDLLA blending solution with naringin. SEM showed that naringin decreased the fiber's diameter according to the concentration of naringin. After 20 days' degradation in PBS, the drug-loaded fiber meshes still kept their stability with about 10% decrease in tensile strength. In vitro release experiments showed a sustained and steady naringin releasing profile with little initial burst releasing. Compared to the mats without naringin, the fiber mats loaded with naringin showed the most pronounced enhancement of cell growth when MC3T3-E1 cells were cultured on the fiber mats. The blend fiber loaded with naringin has optimized physical properties and sustained release profile in vitro. The study presents a promising fibrous mesh material for guided bone regeneration therapy.
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Affiliation(s)
- Zhenzhao Guo
- Department of Materials Science and Engineering, Jinan University.,The First Affiliated Hospital of Jinan University
| | - Shuai Wu
- Department of Materials Science and Engineering, Jinan University
| | - Hong Li
- Department of Materials Science and Engineering, Jinan University
| | - Qiyan Li
- Department of Endodontics, Periodontics and Oral Medicine, The First People's Hospital of Yunnan Province.,Department of Endodontics, Periodontics and Oral Medicine, Affiliated Hospital of Kunming University of Science and Technology
| | - Gang Wu
- Department of Biomedical Engineering, South China University of Technology
| | - Changren Zhou
- Department of Materials Science and Engineering, Jinan University
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20
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Álvarez-Suarez AS, López-Maldonado EA, Graeve OA, Martinez-Pallares F, Gómez-Pineda LE, Oropeza-Guzmán MT, Iglesias AL, Ng T, Serena-Gómez E, Villarreal-Gómez LJ. Fabrication of porous polymeric structures using a simple sonication technique for tissue engineering. JOURNAL OF POLYMER ENGINEERING 2017. [DOI: 10.1515/polyeng-2016-0423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractPorous polymeric scaffolds have been applied successfully in the biomedical field. This work explores the use of an ultrasonic probe to generate cavitation in a polymeric solution, thus producing pores in the polymeric scaffolds. Porous polymeric structures with average pore sizes ranging from 5 to 63 μm and porosity of 6–44% were fabricated by a process consisting of sonication, flash freezing, and lyophilization of poly(lactic-co-glycolic acid) (PLGA), gelatin (GEL), chitosan (CS) and poly(vinyl alcohol) (PVAL) solutions. Pore structure was characterized by scanning electron microscopy (SEM) and image analysis software. The infrared spectra were analyzed before and after the fabrication process to observe any change in the chemical structure of the polymers. A water absorption test indicated the susceptibility of the samples to retain water in their structure. TGA results showed that GEL experienced degradation at 225°C, CS had a decomposition peak at 280°C, the thermal decomposition of PLGA occurred at 375°C, and PVAL showed two degradation regions. The DSC analysis showed that the glass transition temperature (Tg) of GEL, CS, PLGA and PVAL occurred at 70°C, 80°C, 60°C and 70°C, respectively. The fabricated porous structures demonstrated similar physical characteristics to those found in bone and cartilage.
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21
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An SJ, Lee SH, Huh JB, Jeong SI, Park JS, Gwon HJ, Kang ES, Jeong CM, Lim YM. Preparation and Characterization of Resorbable Bacterial Cellulose Membranes Treated by Electron Beam Irradiation for Guided Bone Regeneration. Int J Mol Sci 2017; 18:ijms18112236. [PMID: 29068426 PMCID: PMC5713206 DOI: 10.3390/ijms18112236] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/16/2017] [Accepted: 10/18/2017] [Indexed: 11/16/2022] Open
Abstract
Bacterial cellulose (BC) is an excellent biomaterial with many medical applications. In this study, resorbable BC membranes were prepared for guided bone regeneration (GBR) using an irradiation technique for applications in the dental field. Electron beam irradiation (EI) increases biodegradation by severing the glucose bonds of BC. BC membranes irradiated at 100 kGy or 300 kGy were used to determine optimal electron beam doses. Electron beam irradiated BC membranes (EI-BCMs) were evaluated by scanning electron microscopy (SEM), attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, thermal gravimetric analysis (TGA), and using wet tensile strength measurements. In addition, in vitro cell studies were conducted in order to confirm the cytocompatibility of EI-BCMs. Cell viabilities of NIH3T3 cells on 100k and 300k EI-BCMs (100 kGy and 300 kGy irradiated BC membranes) were significantly greater than on NI-BCMs after 3 and 7 days (p < 0.05). Bone regeneration by EI-BCMs and their biodegradabilities were also evaluated using in vivo rat calvarial defect models for 4 and 8 weeks. Histometric results showed 100k EI-BCMs exhibited significantly larger new bone area (NBA; %) than 300k EI-BCMs at 8 weeks after implantation (p < 0.05). Mechanical, chemical, and biological analyses showed EI-BCMs effectively interacted with cells and promoted bone regeneration.
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Affiliation(s)
- Sung-Jun An
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - So-Hyoun Lee
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Sung In Jeong
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Jong-Seok Park
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Hui-Jeong Gwon
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Eun-Sook Kang
- Department of Prosthodontics, In-Je University Haeundae Paik Hospital, Busan 48108, Korea.
| | - Chang-Mo Jeong
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Youn-Mook Lim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
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22
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Nasrin R, Biswas S, Rashid TU, Afrin S, Jahan RA, Haque P, Rahman MM. Preparation of Chitin-PLA laminated composite for implantable application. Bioact Mater 2017; 2:199-207. [PMID: 29744430 PMCID: PMC5935514 DOI: 10.1016/j.bioactmat.2017.09.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/15/2017] [Accepted: 09/18/2017] [Indexed: 11/26/2022] Open
Abstract
The present study explores the possibilities of using locally available inexpensive waste prawn shell derived chitin reinforced and bioabsorbable polylactic acid (PLA) laminated composites to develop new materials with excellent mechanical and thermal properties for implantable application such as in bone or dental implant. Chitin at different concentration (1–20% of PLA) reinforced PLA films (CTP) were fabricated by solvent casting process and laminated chitin-PLA composites (LCTP) were prepared by laminating PLA film (obtained by hot press method) with CTP also by hot press method at 160 °C. The effect of variation of chitin concentration on the resulting laminated composite's behavior was investigated. The detailed physico-mechanical, surface morphology and thermal were assessed with different characterization technique such as FT-IR, XRD, SEM and TGA. The FTIR spectra showed the characteristic peaks for chitin and PLA in the composites. SEM images showed an excellent dispersion of chitin in the films and composites. Thermogravimetric analysis (TGA) showed that the complete degradation of chitin, PLA film, 5% chitin reinforced PLA film (CTP2) and LCTP are 98%, 95%, 87% and 98% respectively at temperature of 500 °C. The tensile strength of the LCTP was found 25.09 MPa which is significantly higher than pure PLA film (18.55 MPa) and CTP2 film (8.83 MPa). After lamination of pure PLA and CTP2 film, the composite (LCTP) yielded 0.265–1.061% water absorption from 30 min to 24 h immerse in water that is much lower than PLA and CTP. The increased mechanical properties of the laminated films with the increase of chitin content indicated good dispersion of chitin into PLA and strong interfacial actions between the polymer and chitin. The improvement of mechanical properties and the results of antimicrobial and cytotoxicity of the composites also evaluated and revealed the composite would be a suitable candidate for implant application in biomedical sector. A novel laminated composite has been prepared from chitin and PLA. The detailed study revealed that 5% chitin in PLA showed enhanced physico-mechanical properties. The composite showed significantly lowered water absorptivity and enhanced antimicrobial sensitivity. 5% chitin-PLA laminated composite can be a suitable candidate for biomedical application in bone regeneration.
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Affiliation(s)
- Romana Nasrin
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Shanta Biswas
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Taslim Ur Rashid
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Sanjida Afrin
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Rumana Akhter Jahan
- Centre for Advanced Research in Sciences, University of Dhaka, Dhaka 1000, Bangladesh
| | - Papia Haque
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh
| | - Mohammed Mizanur Rahman
- Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh
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Lee SH, An SJ, Lim YM, Huh JB. The Efficacy of Electron Beam Irradiated Bacterial Cellulose Membranes as Compared with Collagen Membranes on Guided Bone Regeneration in Peri-Implant Bone Defects. MATERIALS 2017; 10:ma10091018. [PMID: 28862689 PMCID: PMC5615673 DOI: 10.3390/ma10091018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/16/2017] [Accepted: 08/22/2017] [Indexed: 12/22/2022]
Abstract
Bacterial cellulose (BC) is a natural polysaccharide produced by some bacteria, and consists of a linear polymer linked by β-(1,4) glycosidic bonds. BC has been developed as a material for tissue regeneration purposes. This study was conducted to evaluate the efficacy of resorbable electron beam irradiated BC membranes (EI-BCMs) for guided bone regeneration (GBR). The electron beam irradiation (EI) was introduced to control the biodegradability of BC for dental applications. EI-BCMs had higher porosity than collagen membranes (CMs), and had similar wet tensile strengths to CMs. NIH3T3 cell adhesion and proliferation on EI-BCMs were not significantly different from those on CMs (p > 0.05). Micro-computed tomography (μCT) and histometric analysis in peri-implant dehiscence defects of beagle dogs showed that EI-BCMs were non-significantly different from CMs in terms of new bone area (NBA; %), remaining bone substitute volume (RBA; %) and bone-to-implant contact (BIC; %) (p > 0.05). These results suggest resorbable EI-BCMs can be used as an alternative biomaterial for bone tissue regeneration.
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Affiliation(s)
- So-Hyoun Lee
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Sung-Jun An
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Youn-Mook Lim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 1266 Sinjeong-dong, Jeongeup-si, Jeollabuk-do 56212, Korea.
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
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Ribeiro VP, Silva-Correia J, Nascimento AI, da Silva Morais A, Marques AP, Ribeiro AS, Silva CJ, Bonifácio G, Sousa RA, Oliveira JM, Oliveira AL, Reis RL. Silk-based anisotropical 3D biotextiles for bone regeneration. Biomaterials 2017; 123:92-106. [DOI: 10.1016/j.biomaterials.2017.01.027] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 01/19/2017] [Accepted: 01/24/2017] [Indexed: 12/16/2022]
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Lima RSRE, Peruzzo DC, Napimoga MH, Saba-Chujfi E, Dos Santos-Pereira SA, Martinez EF. Evaluation of the Biological Behavior of Mucograft® in Human Gingival Fibroblasts: An In Vitro Study. Braz Dent J 2017; 26:602-6. [PMID: 26963203 DOI: 10.1590/0103-6440201300238] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 09/08/2015] [Indexed: 02/17/2023] Open
Abstract
Mucograft(r) is a resorbing porcine matrix composed of type I and type III collagen, used for soft tissue augmentation in guided tissue bony regeneration procedures. This in vitro study aimed to evaluate the biological behavior of Mucograft(r) in human gingival fibroblasts, as well as the ability of the matrix to induce production of extracellular matrix. Six resorbing Mucograft(r) matrices (MCG) were cut into 3 x 2 mm rectangles and 5 x 5 mm squares and were placed in 96- and 24-well plates, respectively. The control group (CTRL) consisted of cells plated on polystyrene without the MCG. After one, two, three and seven days, cell proliferation and viability were assessed using the Trypan exclusion method and MTT test, respectively. Type III collagen (COL 3A1) and vimentin (VIM) expression were also evaluated at 10 and 14 days, using Western blotting. Statistical analysis, using ANOVA with post hoc Bonferroni test, revealed that human gingival fibroblasts from MCG showed similar results (p>0.05) for proliferation and viability as the cells cultured on CTRL. After 14 days, a significant decrease in COL 3A1 expression (p<0.05) was observed when cultured with the MCG. VIM expression showed no significant difference at any time period (p>0.05). Although no increase in extracellular matrix secretion was observed in this in vitro study, Mucograft(r) presented cellular compatibility, being an option for a scaffold whenever it is required.
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Affiliation(s)
- Rafaela S R E Lima
- Department of Periodontology, SLMANDIC - São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
| | - Daiane C Peruzzo
- Department of Periodontology, SLMANDIC - São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
| | - Marcelo H Napimoga
- Department of Immunology, SLMANDIC - São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
| | - Eduardo Saba-Chujfi
- Department of Periodontology, SLMANDIC - São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
| | | | - Elizabeth F Martinez
- Department of Pathology and Cell Biology, SLMANDIC - São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
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Farah S, Anderson DG, Langer R. Physical and mechanical properties of PLA, and their functions in widespread applications - A comprehensive review. Adv Drug Deliv Rev 2016; 107:367-392. [PMID: 27356150 DOI: 10.1016/j.addr.2016.06.012] [Citation(s) in RCA: 1068] [Impact Index Per Article: 133.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 12/28/2022]
Abstract
Poly(lactic acid) (PLA), so far, is the most extensively researched and utilized biodegradable aliphatic polyester in human history. Due to its merits, PLA is a leading biomaterial for numerous applications in medicine as well as in industry replacing conventional petrochemical-based polymers. The main purpose of this review is to elaborate the mechanical and physical properties that affect its stability, processability, degradation, PLA-other polymers immiscibility, aging and recyclability, and therefore its potential suitability to fulfill specific application requirements. This review also summarizes variations in these properties during PLA processing (i.e. thermal degradation and recyclability), biodegradation, packaging and sterilization, and aging (i.e. weathering and hygrothermal). In addition, we discuss up-to-date strategies for PLA properties improvements including components and plasticizer blending, nucleation agent addition, and PLA modifications and nanoformulations. Incorporating better understanding of the role of these properties with available improvement strategies is the key for successful utilization of PLA and its copolymers/composites/blends to maximize their fit with worldwide application needs.
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Xie D, Park JG, Zhao J, Turner CH. Novel Injectable and In situ Curable Glycolide/Lactide Based Biodegradable Polymer Resins and Composites. J Biomater Appl 2016; 22:33-54. [PMID: 16920760 DOI: 10.1177/0885328206068691] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Novel in situ polymerizable liquid three-arm biodegradable oligomeric polyesters based upon glycolic acid (GA), L-lactic acid (LLA), and their copolymers are synthesized and characterized. Injectable and in situ curable polymer neat resins and their composites formulated with bioabsorbable beta-tricalcium phosphate are prepared at room temperature using photo- and redox-initiation systems, respectively. The cured neat resins show the initial compressive yield strength (YCS, MPa), modulus (M, MPa), ultimate compressive strength (UCS, MPa), and toughness (T, kN mm), ranging from 4.0 to 20.1, 201.5 to 730.2, 82.7 to 310.5, and 1.02 to 3.93. The cured composites show the initial YCS, M, UCS and T, ranging from 27.7 to 56.4, 1440 to 4870, 81.6 to 158.9, and 0.94 to 1.97. Increasing GA/LLA ratio increases all the initial compressive strengths of both neat resins and composites. Increasing filler content increases YCS and M but decreases UCS and T. A diametral tensile strength test shows the same trend as a compressive strength test. There seems to be an optimal flexural strength for the composite at the filler content around 43%. An increasing molar ratio increases curing time but decreases the degree of conversion (DC). An increasing filler content increases curing time but decreases exotherm and DC. During the course of degradation, all the materials show a burst degradation behavior within 24 h, followed by an increase in CS. The poly(glycolic acid) neat resin completely loses its strength at around Day 45. The composites completely lose their strengths at different time intervals, depending on their molar ratio and filler content. The degradation rate is found to be molar ratio and filler-content dependent.
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Affiliation(s)
- Dong Xie
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University at Indianapolis Indianapolis, IN 46202, USA.
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Puska M, Yli-Urpo A, Vallittu P, Airola K. Synthesis and Characterization of Polyamide of Trans-4-hydroxy-L-proline used as Porogen Filler in Acrylic Bone Cement. J Biomater Appl 2016; 19:287-301. [PMID: 15788426 DOI: 10.1177/0885328205048044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to synthesize on a larger scale, an experimental polyamide based on an amino acid of trans-4-hydroxy-L-proline. The polyamide of trans-4-hydroxy-L-proline has been used as porogen filler (i.e., a hydrophilic pore generating material) in nondegradable acrylic bone cement. In in vitro studies, this hydrophilic filling component has been shown to form porosity within the acrylic bone cement in an aqueous environment. The formation of in situ porosity in the acrylic polymer matrix is believed to improve the fixation between the cement and the living bone. Namely, a porous structure can support bone ingrowth and strengthen the mechanical connection between the acrylic bone cement and the bone. The monomer, trans-4-hydroxy-L-proline methyl ester, was prepared from trans-4-hydroxy-L-proline by means of two steps, and the monomer was then polymerized to polyamide of trans-4-hydroxy-L-proline. The polymerization was carried out using a melt polycondensation method. The molecular weights (Mψ) of the produced polyamides were between 1800 and 3600. The products were characterized by FTIR and 1H-NMR spectroscopy.
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Affiliation(s)
- Mervi Puska
- Department of Prosthetic Dentistry & Biomaterials Research, Institute of Dentistry, University of Turku, Turku, Finland.
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Sharif F, Ur Rehman I, Muhammad N, MacNeil S. Dental materials for cleft palate repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 61:1018-28. [PMID: 26838929 DOI: 10.1016/j.msec.2015.12.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/08/2015] [Accepted: 12/10/2015] [Indexed: 12/26/2022]
Abstract
Numerous bone and soft tissue grafting techniques are followed to repair cleft of lip and palate (CLP) defects. In addition to the gold standard surgical interventions involving the use of autogenous grafts, various allogenic and xenogenic graft materials are available for bone regeneration. In an attempt to discover minimally invasive and cost effective treatments for cleft repair, an exceptional growth in synthetic biomedical graft materials have occurred. This study gives an overview of the use of dental materials to repair cleft of lip and palate (CLP). The eligibility criteria for this review were case studies, clinical trials and retrospective studies on the use of various types of dental materials in surgical repair of cleft palate defects. Any data available on the surgical interventions to repair alveolar or palatal cleft, with natural or synthetic graft materials was included in this review. Those datasets with long term clinical follow-up results were referred to as particularly relevant. The results provide encouraging evidence in favor of dental and other related biomedical materials to fill the gaps in clefts of lip and palate. The review presents the various bones and soft tissue replacement strategies currently used, tested or explored for the repair of cleft defects. There was little available data on the use of synthetic materials in cleft repair which was a limitation of this study. In conclusion although clinical trials on the use of synthetic materials are currently underway the uses of autologous implants are the preferred treatment methods to date.
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Affiliation(s)
- Faiza Sharif
- Department of Materials Science & Engineering, Kroto Research Institute, University of Sheffield, Broad Lane, Sheffield, UK; Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan.
| | - Ihtesham Ur Rehman
- Department of Materials Science & Engineering, Kroto Research Institute, University of Sheffield, Broad Lane, Sheffield, UK
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Lahore, Pakistan.
| | - Sheila MacNeil
- Department of Materials Science & Engineering, Kroto Research Institute, University of Sheffield, Broad Lane, Sheffield, UK
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In Vitro Behavior of Human Adipose Tissue-Derived Stem Cells on Poly(ε-caprolactone) Film for Bone Tissue Engineering Applications. BIOMED RESEARCH INTERNATIONAL 2015; 2015:323571. [PMID: 26558266 PMCID: PMC4617699 DOI: 10.1155/2015/323571] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 09/10/2015] [Indexed: 12/12/2022]
Abstract
Bone tissue engineering is an emerging field, representing one of the most exciting challenges for scientists and clinicians. The possibility of combining mesenchymal stem cells and scaffolds to create engineered tissues has brought attention to a large variety of biomaterials in combination with osteoprogenitor cells able to promote and regenerate bone tissue. Human adipose tissue is officially recognized as an easily accessible source of mesenchymal stem cells (AMSCs), a significant factor for use in tissue regenerative medicine. In this study, we analyze the behavior of a clonal finite cell line derived from human adipose tissue seeded on poly(ε-caprolactone) (PCL) film, prepared by solvent casting. PCL polymer is chosen for its good biocompatibility, biodegradability, and mechanical properties. We observe that AMSCs are able to adhere to the biomaterial and remain viable for the entire experimental period. Moreover, we show that the proliferation process and osteogenic activity of AMSCs are maintained on the biofilm, demonstrating that the selected biomaterial ensures cell colonization and the development of an extracellular mineralized matrix. The results of this study highlight that AMSCs and PCL film can be used as a suitable model to support regeneration of new bone for future tissue engineering strategies.
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Amphiphilic multiblock copolymers of PLLA, PEO and PPO blocks: Synthesis, properties and cell affinity. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Evaluation of the osteoinductive potential of a bio-inspired scaffold mimicking the osteogenic niche for bone augmentation. Biomaterials 2015; 62:128-37. [PMID: 26048479 DOI: 10.1016/j.biomaterials.2015.05.011] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/02/2015] [Accepted: 05/14/2015] [Indexed: 01/18/2023]
Abstract
Augmentation of regenerative osteogenesis represents a premier clinical need, as hundreds of thousands of patients are left with insufficient healing of bony defects related to a host of insults ranging from congenital abnormalities to traumatic injury to surgically-induced deficits. A synthetic material that closely mimics the composition and structure of the human osteogenic niche represents great potential to successfully address this high demand. In this study, a magnesium-doped hydroxyapatite/type I collagen scaffold was fabricated through a biologically-inspired mineralization process and designed to mimic human trabecular bone. The composition of the scaffold was fully characterized by XRD, FTIR, ICP and TGA, and compared to human bone. Also, the scaffold microstructure was evaluated by SEM, while its nano-structure and nano-mechanical properties were evaluated by AFM. Human bone marrow-derived mesenchymal stem cells were used to test the in vitro capability of the scaffold to promote osteogenic differentiation. The cell/scaffold constructs were cultured up to 7 days and the adhesion, organization and proliferation of the cells were evaluated. The ability of the scaffold to induce osteogenic differentiation of the cells was assessed over 3 weeks and the correlate gene expression for classic genes of osteogenesis was assessed. Finally, when tested in an ectopic model in rabbit, the scaffold produced a large volume of trabecular bone in only two weeks, that subsequently underwent maturation over time as expected, with increased mature cortical bone formation, supporting its ability to promote bone regeneration in clinically-relevant scenarios. Altogether, these results confirm a high level of structural mimicry by the scaffold to the composition and structure of human osteogenic niche that translated to faster and more efficient osteoinduction in vivo--features that suggest such a biomaterial may have great utility in future clinical applications where bone regeneration is required.
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Sarkar SK, Lee BT. Hard tissue regeneration using bone substitutes: an update on innovations in materials. Korean J Intern Med 2015; 30:279-93. [PMID: 25995658 PMCID: PMC4438282 DOI: 10.3904/kjim.2015.30.3.279] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/05/2015] [Indexed: 12/15/2022] Open
Abstract
Bone is a unique organ composed of mineralized hard tissue, unlike any other body part. The unique manner in which bone can constantly undergo self-remodeling has created interesting clinical approaches to the healing of damaged bone. Healing of large bone defects is achieved using implant materials that gradually integrate with the body after healing is completed. Such strategies require a multidisciplinary approach by material scientists, biological scientists, and clinicians. Development of materials for bone healing and exploration of the interactions thereof with the body are active research areas. In this review, we explore ongoing developments in the creation of materials for regenerating hard tissues.
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Affiliation(s)
- Swapan Kumar Sarkar
- Institute of Tissue Regeneration, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Byong Taek Lee
- Institute of Tissue Regeneration, Soonchunhyang University College of Medicine, Cheonan, Korea
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Vallittu PK, Närhi TO, Hupa L. Fiber glass–bioactive glass composite for bone replacing and bone anchoring implants. Dent Mater 2015; 31:371-81. [DOI: 10.1016/j.dental.2015.01.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 11/30/2014] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
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Byun JH, Lee HAR, Kim TH, Lee JH, Oh SH. Effect of porous polycaprolactone beads on bone regeneration: preliminary in vitro and in vivo studies. Biomater Res 2014; 18:18. [PMID: 26331069 PMCID: PMC4552305 DOI: 10.1186/2055-7124-18-18] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/19/2014] [Indexed: 11/21/2022] Open
Abstract
Background For the effective bone regeneration with appropriate pathological/physiological properties, a variety of bone fillers have been adapted as a therapeutic treatment. However, the development of ideal bone fillers is still remained as a big challenge in clinical practice. The main aims of this study are i) fabrication of a highly porous PCL beads; and ii) the estimation of the potential use of the porous PCL beads as a bone filler through preliminary animal study. Results The porous PCL beads with size range of 53 ~ 600 μm (425 ~ 500 μm dominantly) are fabricated by a spray/precipitation method using a double nozzle spray and PCL solution (in tetraglycol). The PCL beads show highly porous inner pore structure and the pores are interconnected with outer surface pores. For the preliminary animal study, we recognize that the porous PCL bead can induce the new bone formation from the outer surface of bone defect toward the bone marrow cavity through the bead matrix. Conclusions From the preliminary results, we can suggest that the highly porous PCL beads may be a promising candidate as a bone filler (scaffolding matrix) for the effective bone regeneration.
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Affiliation(s)
- June-Ho Byun
- Department of Oral and Maxillofacial Surgery, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, 660-702 Korea
| | - Han A Reum Lee
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 330-714 Korea
| | - Tae Ho Kim
- Department of Advanced Materials, Hannam University, Daejeon, 305-811 Korea
| | - Jin Ho Lee
- Department of Advanced Materials, Hannam University, Daejeon, 305-811 Korea
| | - Se Heang Oh
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 330-714 Korea
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Lim JI, Im H, Lee WK. Fabrication of porous chitosan-polyvinyl pyrrolidone scaffolds from a quaternary system via phase separation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 26:32-41. [PMID: 25410721 DOI: 10.1080/09205063.2014.979386] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Three-dimensional porous chitosan-polyvinyl pyrrolidone (PVP) scaffolds were fabricated for tissue engineering applications via liquid-liquid or liquid-solid phase separation. A mixture of an acidic aqueous solution with butanol as a non-solvent and a chitosan-PVP quaternary system were freeze-dried. We then studied the homogenous open pore structure and the minute pore distribution in order to improve the mass transfer and cell seeding efficiency while also obtaining the optimal ratio of PVP to provide high interconnectivity and to improve the open-pore structure. The properties of the porous chitosan-PVP scaffolds - including the microstructure, chemical release, water absorption properties, and cell proliferation tests were studied - and the results were compared against those obtained from conventional scaffolds. chitosan-PVP scaffolds with a porosity of over 70% were obtained, and the pore morphology on the surface and within the porous scaffolds showed the presence of homogenous open pores with excellent interconnectivity. As the PVP content increased, main pores (50-100 μm) and minute pores (4-10 μm) could be clearly observed. Also, the porous scaffold showed an improved efficiency for cell adhesion after the cells were cultured for 4 h. After 72 h, the cultured cells presented an increase in the cell proliferation and on the porous scaffolds. These results strongly suggest that the porous chitosan-PVP scaffolds can be widely used in tissue engineering, including for biopatches and artificial skin applications.
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Affiliation(s)
- Jin Ik Lim
- a Laboratory of Biointerfaces/Tissue Engineering, Department of Chemical Engineering, Institute of Tissue Regeneration Engineering, College of Engineering , Dankook University , Jukjeon-dong, Yongin-si , Gyeonggi-do , Republic of Korea
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Kong X, Wang J, Cao L, Yu Y, Liu C. Enhanced osteogenesis of bone morphology protein-2 in 2- N ,6- O -sulfated chitosan immobilized PLGA scaffolds. Colloids Surf B Biointerfaces 2014; 122:359-367. [DOI: 10.1016/j.colsurfb.2014.07.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 06/23/2014] [Accepted: 07/10/2014] [Indexed: 11/24/2022]
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Jin SH, Kweon H, Park JB, Kim CH. The effects of tetracycline-loaded silk fibroin membrane on proliferation and osteogenic potential of mesenchymal stem cells. J Surg Res 2014; 192:e1-9. [PMID: 25291963 DOI: 10.1016/j.jss.2014.08.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/23/2014] [Accepted: 08/28/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND The main objective of this study was to investigate the effect of tetracycline-loaded silk fibroin membranes (TC-SFMs) on the proliferation and the osteogenic differentiation of human mesenchymal stem cells. MATERIALS AND METHODS Four groups (0, 1, 5, and 10% concentration) of TC-SFMs were prepared for the experiments. We investigated cumulative tetracycline (TC) release profile for 7 d. Human gingiva-derived mesenchymal stem cells (GMSCs) were isolated from our previous study and seeded to the TC-SFMs. WST-8 assay (Cell Counting Kit-8; SigmaeAldrich Co, St. Louis, MO), staining of Phalloidin-FITC, and scanning electron microscope analyzed the cellular attachment and viability. Staining of Alizarin Red S (Sigma-Aldrich Co.) and osteogenic marker (osteocalcin) analyzed osteogenic differentiation. Additionally, quantitative polymerase chain reaction measured the expression of osteogenic lineage genes, including bone gamma-carboxyglutamic acid protein, bone sialoprotein, runt-related transcription factor 2, and collagen type I α1 according to TC concentration (0.05, 0.1, 0.25, and 0.5 mg/mL). RESULTS The release of TC from TC-SFMs plateaued and neared completion in 24 h. Significantly higher viability was noted achieved in 1% and 5% TC-SFMs. The morphology of GMSCs on TC-SFMs at 0% and 1% concentration showed spindle shapes, but cells in 10% TC-SFMs appeared spheroid. During Alizarin Red S staining at 21 d of osteogenic differentiation, calcium and osteocalcin formation were significantly lower in the 10% TC-SFM group than in the 0, 1, and 5 groups. Compared with the control group, bone gamma-carboxyglutamic acid protein showed significantly low expression rate at TC concentration ≥0.05 mg/mL. Bone sialoprotein was low at TC concentration ≥0.1 mg/mL. Likewise, runt-related transcription factor 2 and collagen type I α1 were low at TC concentration of 0.5 mg/mL. CONCLUSIONS Within the limits of this study, 1% and 5% TC-SFMs showed higher proliferation and osteogenic potential of GMSCs than 10% TC-SFM. Therefore, the use of 1% to 5% range of TC may be more suitable to silk fibroin membrane for stem cell tissue engineering.
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Affiliation(s)
- Seong-Ho Jin
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - HaeYong Kweon
- Department of Agricultural Biology, National Academy of Agricultural Science, Rural Development Administration, Suwon, Republic of Korea
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Chang-Hyen Kim
- Department of Oral and Maxillofacial Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Fabrication and characterization of novel biomimetic PLLA/cellulose/hydroxyapatite nanocomposite for bone repair applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:120-5. [DOI: 10.1016/j.msec.2014.02.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 01/27/2014] [Accepted: 02/17/2014] [Indexed: 11/24/2022]
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Killion JA, Geever LM, Devine DM, Farrell H, Higginbotham CL. Compressive Strength and Bioactivity Properties of Photopolymerizable Hybrid Composite Hydrogels for Bone Tissue Engineering. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2013.854238] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Kim YH, Son SR, Sarkar SK, Lee BT. The effects of dimethyl 3,3'-dithiobispropionimidate di-hydrochloride cross-linking of collagen and gelatin coating on porous spherical biphasic calcium phosphate granules. J Biomater Appl 2014; 29:386-98. [PMID: 24733775 DOI: 10.1177/0885328214530483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Collagen- and gelatin-coated porous spherical granule was prepared by slurry dripping process using biphasic calcium phosphate powder. The coating was stabilized by cross-linking with dimethyl 3,3'-dithiobispropionimidate di-hydrogenchloride (DTBP). Afer DTBP cross-linking, the nanostructure of collagen- and gelatin-coated surfaces was changed from smooth to fibrous and net-like structure. Excellent cross-linking of the coating was seen as indicated by the differential scanning calorimetry thermogram and the Fourier transform infrared spectroscopy spectra. After cross-linking the relative intensities of the Fourier transform infrared spectroscopy peaks were decreased and amide bands were shifted to the left. The interaction of gelatin with DTBP cross-linking agent was stronger than that with collagen according to differential scanning calorimetry and Fourier transform infrared spectroscopy results. The compressive strength of the granular bone substitutes increased significantly after the coating process and gelatin coated biphasic calcium phosphate granules showed highest value at 3.68 MPa after cross-linking. Porosity was greater than 63% and did not change significantly with coating. Biocompatibility investigation by in vitro and in vivo showed that the coating improved the cell proliferation marginally. However, the cross-linking process did not jeopardize the excellent biocompatibility of collagen and gelatin. The in vivo study confirms better bone formation behavior of the cross-linked gelatin and collagen coated samples investigated for 8 weeks in vivo.
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Affiliation(s)
- Yang-Hee Kim
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - So-Ra Son
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Swapan Kumar Sarkar
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Byong-Taek Lee
- Department of Regenerative Medicine, Institute of Tissue Regeneration, School of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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Ghobadi E, Heuchel M, Kratz K, Lendlein A. Atomistic Simulation of the Shape-Memory Effect in Dry and Water Swollen Poly[(rac
-lactide)-co
-glycolide] and Copolyester Urethanes Thereof. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201300507] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ehsan Ghobadi
- Institute of Biomaterial Science; Helmholtz-Zentrum Geesthacht; Kantstr. 55 14513 Teltow Germany
- Institute of Chemistry; University of Potsdam; Karl-Liebknecht-Straße 24-25 14476 Potsdam Germany
| | - Matthias Heuchel
- Institute of Biomaterial Science; Helmholtz-Zentrum Geesthacht; Kantstr. 55 14513 Teltow Germany
| | - Karl Kratz
- Institute of Biomaterial Science; Helmholtz-Zentrum Geesthacht; Kantstr. 55 14513 Teltow Germany
- Institute of Chemistry; University of Potsdam; Karl-Liebknecht-Straße 24-25 14476 Potsdam Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science; Helmholtz-Zentrum Geesthacht; Kantstr. 55 14513 Teltow Germany
- Institute of Chemistry; University of Potsdam; Karl-Liebknecht-Straße 24-25 14476 Potsdam Germany
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Mai F, Habibi Y, Raquez JM, Dubois P, Feller JF, Peijs T, Bilotti E. Poly(lactic acid)/carbon nanotube nanocomposites with integrated degradation sensing. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.10.035] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Echezarreta-López M, Landin M. Using machine learning for improving knowledge on antibacterial effect of bioactive glass. Int J Pharm 2013; 453:641-7. [DOI: 10.1016/j.ijpharm.2013.06.036] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 06/13/2013] [Accepted: 06/15/2013] [Indexed: 01/22/2023]
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Modglin VC, Brown RF, Jung SB, Day DE. Cytotoxicity assessment of modified bioactive glasses with MLO-A5 osteogenic cells in vitro. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:1191-1199. [PMID: 23392968 DOI: 10.1007/s10856-013-4875-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 01/21/2013] [Indexed: 06/01/2023]
Abstract
The primary objective of this study was to evaluate in vitro responses of MLO-A5 osteogenic cells to two modifications of the bioactive glass 13-93. The modified glasses, which were designed for use as cell support scaffolds and contained added boron to form the glasses 13-93 B1 and 13-93 B3, were made to accelerate formation of a bioactive hydroxyapatite surface layer and possibly enhance tissue growth. Quantitative MTT cytotoxicity tests revealed no inhibition of growth of MLO-A5 cells incubated with 13-93 glass extracts up to 10 mg/ml, moderate inhibition of growth with 13-93 B1 glass extracts, and noticeable inhibition of growth with 13-93 B3 glass extracts. A morphology-based biocompatibility test was also performed and yielded qualitative assessments of the relative biocompatibilities of glass extracts that agree with those obtained by the quantitative MTT test. However, as a proof of concept experiment, when MLO-A5 cells were seeded onto 13-93 B3 scaffolds in a dynamic in vitro environment, cell proliferation occurred as evidenced by qualitative and quantitative MTT labeling of scaffolds. Together these results demonstrate the in vitro toxicity of released borate ion in static experiments; however borate ion release can be mitigated in a dynamic environment similar to the human body where microvasculature is present. Here we argue that despite toxicity in static environments, boron-containing 13-93 compositions may warrant further study for use in tissue engineering applications.
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Affiliation(s)
- Vernon C Modglin
- Department of Biological Sciences, Center for Bone and Tissue Repair and Regeneration, Missouri University of Science and Technology, Rolla, MO 65409, USA.
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Babu RP, O'Connor K, Seeram R. Current progress on bio-based polymers and their future trends. Prog Biomater 2013; 2:8. [PMID: 29470779 PMCID: PMC5151099 DOI: 10.1186/2194-0517-2-8] [Citation(s) in RCA: 348] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 02/21/2013] [Indexed: 01/19/2023] Open
Abstract
This article reviews the recent trends, developments, and future applications of bio-based polymers produced from renewable resources. Bio-based polymers are attracting increased attention due to environmental concerns and the realization that global petroleum resources are finite. Bio-based polymers not only replace existing polymers in a number of applications but also provide new combinations of properties for new applications. A range of bio-based polymers are presented in this review, focusing on general methods of production, properties, and commercial applications. The review examines the technological and future challenges discussed in bringing these materials to a wide range of applications, together with potential solutions, as well as discusses the major industry players who are bringing these materials to the market.
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Affiliation(s)
- Ramesh P Babu
- Centre for Research Adoptive Nanostructures and Nano Devices, Trinity College, Dublin 2, Ireland
- School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Kevin O'Connor
- School of Biomolecular and Biomedical Sciences, Centre for Synthesis and Chemical Biology, UCD Conway Institute, and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ramakrishna Seeram
- NUSNNI, National University of Singapore, 2 Engineering Drive 3, Singapore, 117581 Singapore
- Institute of Materials Research and Engineering, Singapore, 117602 Singapore
- Jinan University, Guangzhou, China
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Hupa L. Tailoring of Bioactive Glasses. Tissue Eng Regen Med 2012. [DOI: 10.1201/b13049-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Ahtiainen K, Sippola L, Nurminen M, Mannerström B, Haimi S, Suuronen R, Hyttinen J, Ylikomi T, Kellomäki M, Miettinen S. Effects of chitosan and bioactive glass modifications of knitted and rolled polylactide-based 96/4 L/D scaffolds on chondrogenic differentiation of adipose stem cells. J Tissue Eng Regen Med 2012; 9:55-65. [DOI: 10.1002/term.1614] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/25/2012] [Accepted: 08/25/2012] [Indexed: 12/20/2022]
Affiliation(s)
- Katja Ahtiainen
- Department of Cell Biology, School of Medicine; University of Tampere; Finland
- Adult Stem Cells; Institute of Biomedical Technology, University of Tampere; Finland
- BioMediTech; Tampere Finland
- Science Center; Tampere University Hospital; Finland
| | - Laura Sippola
- BioMediTech; Tampere Finland
- Department of Biomedical Engineering; Tampere University of Technology; Finland
| | - Manu Nurminen
- BioMediTech; Tampere Finland
- Department of Biomedical Engineering; Tampere University of Technology; Finland
| | - Bettina Mannerström
- Adult Stem Cells; Institute of Biomedical Technology, University of Tampere; Finland
- BioMediTech; Tampere Finland
- Science Center; Tampere University Hospital; Finland
| | - Suvi Haimi
- Adult Stem Cells; Institute of Biomedical Technology, University of Tampere; Finland
- BioMediTech; Tampere Finland
- Science Center; Tampere University Hospital; Finland
| | - Riitta Suuronen
- Adult Stem Cells; Institute of Biomedical Technology, University of Tampere; Finland
- BioMediTech; Tampere Finland
- Department of Biomedical Engineering; Tampere University of Technology; Finland
- Department of Eye, Ear, and Oral Diseases; Tampere University Hospital; Finland
| | - Jari Hyttinen
- BioMediTech; Tampere Finland
- Department of Biomedical Engineering; Tampere University of Technology; Finland
| | - Timo Ylikomi
- Department of Cell Biology, School of Medicine; University of Tampere; Finland
- FICAM, Finnish Center for Alternative Methods, School of Medicine; University of Tampere; Finland
- Department of Clinical Chemistry; Tampere University Hospital; Finland
| | - Minna Kellomäki
- BioMediTech; Tampere Finland
- Department of Biomedical Engineering; Tampere University of Technology; Finland
| | - Susanna Miettinen
- Adult Stem Cells; Institute of Biomedical Technology, University of Tampere; Finland
- BioMediTech; Tampere Finland
- Science Center; Tampere University Hospital; Finland
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Hum J, Boccaccini AR. Bioactive glasses as carriers for bioactive molecules and therapeutic drugs: a review. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2317-2333. [PMID: 22361998 DOI: 10.1007/s10856-012-4580-z] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 02/03/2012] [Indexed: 05/31/2023]
Abstract
Bioactive glasses (BG) show great promise for bone tissue engineering based on their key properties, e.g., biocompatibility, biodegradability, osteoconductivity as well as osteogenic and angiogenic potential, which make them excellent candidates for bone tissue scaffolds and bone substitute materials. Recent work has shown that dissolution products of bioactive glasses have the potential to induce angiogenesis in addition to their known effect of influencing gene expression and promoting osteoblastic differentiation. One of the most interesting features of BG is their ability to bond both to soft and hard tissues, depending on their composition. To intensify the positive impact of BG for medical applications, there are considerable research efforts on using bioactive glass based platforms as carriers for the encapsulation, delivery and controlled release of bioactive molecules and therapeutic drugs. Different types of bioactive glasses have been considered in combination with different therapeutic drugs, hormones, growth factors and peptides. Using bioactive glasses as drug delivery system combines thus the effectiveness of therapeutic drugs (or bioactive/signaling molecules) with the intrinsic advantages of this inorganic biomaterial. Considering research carried out in the last 15 years, this review presents the different chemical compositions and morphologies of bioactive glasses used as carrier for bioactive molecules and therapeutic drugs and discusses the expanding potential of BG with drug delivery capability focusing in the field of bone tissue engineering.
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Affiliation(s)
- Jasmin Hum
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany
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