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Sachdev A, Acharya S, Gadodia T, Shukla S, J H, Akre C, Khare M, Huse S. A Review on Techniques and Biomaterials Used in 3D Bioprinting. Cureus 2022; 14:e28463. [PMID: 36176831 PMCID: PMC9511817 DOI: 10.7759/cureus.28463] [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: 07/29/2022] [Accepted: 08/27/2022] [Indexed: 11/30/2022] Open
Abstract
Three-dimensional (3D) bioprinting is a cutting-edge technology that has come to light recently and shows a promising potential whose progress will change the face of medicine. This article reviews the most commonly used techniques and biomaterials for 3D bioprinting. We will also look at the advantages and limitations of various techniques and biomaterials and get a comparative idea about them. In addition, we will also look at the recent applications of these techniques in different industries. This article aims to get a basic idea of the techniques and biomaterials used in 3D bioprinting, their advantages and limitations, and their recent applications in various fields.
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Singh YP, Dasgupta S. Gelatin-based electrospun and lyophilized scaffolds with nano scale feature for bone tissue engineering application: review. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1704-1758. [PMID: 35443894 DOI: 10.1080/09205063.2022.2068943] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The rebuilding of the normal functioning of the damaged human body bone tissue is one of the main objectives of bone tissue engineering (BTE). Fabricated scaffolds are mostly treated as artificial supports and as materials for regeneration of neo bone tissues and must closely biomimetic the native extracellular matrix of bone. The materials used for developing scaffolds should be biodegradable, nontoxic, and biocompatible. For the resurrection of bone disorder, specifically natural and synthetic polymers such as chitosan, PCL, gelatin, PGA, PLA, PLGA, etc. meet the requirements for serving their functions as artificial bone substitute materials. Gelatin is one of the potential candidates which could be blended with other polymers or composites to improve its physicochemical, mechanical, and biological performances as a bone graft. Scaffolds are produced by several methods including electrospinning, self-assembly, freeze-drying, phase separation, fiber drawing, template synthesis, etc. Among them, freeze-drying and electrospinning are among the popular, simplest, versatile, and cost-effective techniques. The design and preparation of freeze-dried and electrospun scaffolds are of intense research over the last two decades. Freeze-dried and electrospun scaffolds offer a distinctive architecture at the micro to nano range with desired porosity and pore interconnectivity for selective movement of small biomolecules and play its role as an appropriate matrix very similar to the natural bone extracellular matrix. This review focuses on the properties and functionalization of gelatin-based polymer and its composite in the form of bone scaffolds fabricated primarily using lyophilization and electrospinning technique and their applications in BTE.
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Affiliation(s)
- Yogendra Pratap Singh
- Department of Ceramic Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
| | - Sudip Dasgupta
- Department of Ceramic Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India
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Wickramasinghe ML, Dias GJ, Premadasa KMGP. A novel classification of bone graft materials. J Biomed Mater Res B Appl Biomater 2022; 110:1724-1749. [DOI: 10.1002/jbm.b.35029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 12/19/2022]
Affiliation(s)
- Maduni L. Wickramasinghe
- Department of Biomedical Engineering General Sir John Kotelawala Defense University Ratmalana Sri Lanka
| | - George J. Dias
- Department of Anatomy, School of Medical Sciences University of Otago Dunedin New Zealand
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Song H, Zhang Y, Zhang Z, Xiong S, Ma X, Li Y. Hydroxyapatite/NELL-1 Nanoparticles Electrospun Fibers for Osteoinduction in Bone Tissue Engineering Application. Int J Nanomedicine 2021; 16:4321-4332. [PMID: 34211273 PMCID: PMC8241815 DOI: 10.2147/ijn.s309567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/28/2021] [Indexed: 12/27/2022] Open
Abstract
Background As commonly bone defect is a disease of jaw that can seriously affect implant restoration, the bioactive scaffold can be used as potential systems to provide effective repair for bone defect. Purpose A osteoinductive bone tissue engineering scaffold has been prepared in order to explore the effect of bioactive materials on bone tissue engineering. Methods In this study, NELL-1 nanoparticles (Chi/NNP) and nano hydroxyapatite were incorporated in composite scaffolds by electrospinning and characterized using TEM, SEM, contact angle, tensile tests and in vitro drug release. In vitro biological activities such as MC3T3-E1 cell attachment, proliferation and osteogenic activity were studied. Results With the addition of nHA and nanoparticles, the fiber diameter of PCL/BNPs group, PCL/NNPs group and PCL/nHA/NNPs group was significantly increased. Moreover, the hydrophilic hydroxyl group and amino group presented in nHA and nanoparticles had improved the hydrophilicity of the composite fibers. The composite electrospun containing Chi/NNPs can form a double protective barrier which can effectively prolong the release time of NELL-1 growth factor. In addition, the hydroxyapatite/NELL-1 nanoparticles electrospun fibers can promote attachment, proliferation, differentiation of MC3T3-E1 cells and good cytocompatibility, indicating better ability of inducing osteogenic differentiation. Conclusion A multi-functional PCL/nHA/NNPs composite fiber with long-term bioactivity and osteoinductivity was successfully prepared by electrospinning. This potential composite could be used as scaffolds in bone tissue engineering application after in vivo studies.
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Affiliation(s)
- Hualei Song
- Department of Laboratory, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Yuntao Zhang
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Zihan Zhang
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Shijiang Xiong
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People's Republic of China
| | - Xiangrui Ma
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
| | - Yourui Li
- Department of Stomatology, Binzhou Medical University Hospital, Binzhou, 256603, People's Republic of China
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Sri Ramakrishnan L, Ps U, Sabu CK, Krishnan AG, Nair MB. Effect of wheat gluten on improved thermal cross-linking and osteogenesis of hydroxyapatite-gelatin composite scaffolds. Int J Biol Macromol 2021; 183:1200-1209. [PMID: 33961879 DOI: 10.1016/j.ijbiomac.2021.04.181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/22/2021] [Accepted: 04/28/2021] [Indexed: 10/21/2022]
Abstract
Promising strategies to stabilize gelatin or collagen include glutaraldehyde-based chemical cross-linking or dehydrothermal treatment at different temperatures (120-180 °C). However, these procedures require 24-48 h for complete cross-linking to occur. The present study aims to evaluate the role of wheat gluten on enhancing thermal cross-linking of silica-nanohydroxyapatite (nanoHA)-gelatin composite scaffolds within a shorter period (2 h). Changes in properties were evaluated by varying the ratio of gelatin and gluten in silica-nanoHA matrix (60 wt% ceramic: 40 wt% polymer). The results showed that the scaffolds cross-linked at 170 °C were stable in phosphate-buffered saline for 21 days. It was crystalline and porous in nature. However, the scaffolds with high weight percentage of wheat gluten were brittle, while those with low gluten degraded fast in vitro. The mesenchymal stem cells could adhere, proliferate and differentiate into osteogenic lineage on wheat gluten-containing scaffolds for 21 days (mainly medium concentration). The scaffold also supported new bone formation in critical-sized rat calvarial defect, showing its osteoconductive and osteointegrative nature. In short, this study showed the potential of wheat gluten on improving thermal cross-linking within a shorter period and its suitability to use as a biomimetic bone graft for bone tissue engineering.
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Affiliation(s)
- Lalitha Sri Ramakrishnan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682024, India
| | - Unnikrishnan Ps
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682024, India
| | - Chinchu K Sabu
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682024, India
| | - Amit G Krishnan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682024, India
| | - Manitha B Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682024, India.
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Development of nano-tricalcium phosphate/polycaprolactone/platelet-rich plasma biocomposite for bone defect regeneration. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.07.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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7
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Lin X, Patil S, Gao YG, Qian A. The Bone Extracellular Matrix in Bone Formation and Regeneration. Front Pharmacol 2020; 11:757. [PMID: 32528290 PMCID: PMC7264100 DOI: 10.3389/fphar.2020.00757] [Citation(s) in RCA: 276] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/06/2020] [Indexed: 12/17/2022] Open
Abstract
Bone regeneration repairs bone tissue lost due to trauma, fractures, and tumors, or absent due to congenital disorders. The extracellular matrix (ECM) is an intricate dynamic bio-environment with precisely regulated mechanical and biochemical properties. In bone, ECMs are involved in regulating cell adhesion, proliferation, and responses to growth factors, differentiation, and ultimately, the functional characteristics of the mature bone. Bone ECM can induce the production of new bone by osteoblast-lineage cells, such as MSCs, osteoblasts, and osteocytes and the absorption of bone by osteoclasts. With the rapid development of bone regenerative medicine, the osteoinductive, osteoconductive, and osteogenic potential of ECM-based scaffolds has attracted increasing attention. ECM-based scaffolds for bone tissue engineering can be divided into two types, that is, ECM-modified biomaterial scaffold and decellularized ECM scaffold. Tissue engineering strategies that utilize the functional ECM are superior at guiding the formation of specific tissues at the implantation site. In this review, we provide an overview of the function of various types of bone ECMs in bone tissue and their regulation roles in the behaviors of osteoblast-lineage cells and osteoclasts. We also summarize the application of bone ECM in bone repair and regeneration. A better understanding of the role of bone ECM in guiding cellular behavior and tissue function is essential for its future applications in bone repair and regenerative medicine.
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Affiliation(s)
- Xiao Lin
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Suryaji Patil
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Yong-Guang Gao
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - Airong Qian
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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Liu F, Wang X, Chen T, Zhang N, Wei Q, Tian J, Wang Y, Ma C, Lu Y. Hydroxyapatite/silver electrospun fibers for anti-infection and osteoinduction. J Adv Res 2019; 21:91-102. [PMID: 32071777 PMCID: PMC7015467 DOI: 10.1016/j.jare.2019.10.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/19/2019] [Accepted: 10/06/2019] [Indexed: 11/28/2022] Open
Abstract
Bone implant materials cause the most common complication of bone infections in orthopedic surgery, resulting in implant failure. Antibiotic treatment of bone infections leads to problems such as bacterial resistance and reduced osteogenic capacity. In this study, dopamine (DA) was self-polymerized on the surface of Polylactic acid (PLLA)/Hydroxyapatite (HA) nanowire composite fibers to form an adhesive polydopamine (PDA) membrane, and a stable silver-nanoparticles (Ag-NPs) coating layer was constructed on it by electrochemically driven Ag+ coordination and chelation through Polypyrrole (PPy) mediation, achieving steady and slow release of Ag-NPs. With optimized DA soaking time of 24 h and soaking concentration of 0.5 g·L-1, nanoparticles were uniformly distributed on PLLA/HA/PDA/PPy/Ag composite fibers and the hydrophilicity of the composite fibers was well-behaved. Besides, the composite fibers possessed good physiological stability and 100% antibacterial rate against Escherichia coli (E. coli) as well as Staphylococcus aureus (S. aureus). In addition, the composite fibers had promoted apatite nucleation and growth on surface and good cytocompatibility with osteoblasts, indicating ability of inducing osteogenic differentiation. In summary, a multi-functional PLLA/HA/PDA/PPy/Ag composite fiber with long-term antibacterial property, bioactivity and osteoinductivity was successfully constructed by electrospinning and electrochemical deposition.
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Affiliation(s)
- Feifei Liu
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Xiaohui Wang
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Tongtong Chen
- Radiology Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, PR China
| | - Naiyin Zhang
- College of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Xiasha Higher Education Zone, Hangzhou, Zhejiang 310018, PR China
| | - Qin Wei
- Animal Laboratory Center, Xinjiang Medical University, 393 Xinyi Road, Urumqi 830054, PR China
| | - Juling Tian
- Laboratory Department of the First People's Hospital of Urumqi, 1 Jiankang Road, Urumqi 830002, PR China
| | - Yingbo Wang
- College of Chemical Engineering, Xinjiang Normal University, Urumqi 830054, Xinjiang, PR China
| | - Chuang Ma
- Department of Orthopedics Center, the First Affiliated Hospital of Xinjiang Medical University, 393 Xinyi Road, Urumqi 830054, PR China
| | - Yong Lu
- Radiology Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, PR China
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Ortega Z, Alemán ME, Donate R. Nanofibers and Microfibers for Osteochondral Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1058:97-123. [PMID: 29691819 DOI: 10.1007/978-3-319-76711-6_5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The use of fibers into scaffolds is a way to mimic natural tissues, in which fibrils are embedded in a matrix. The use of fibers can improve the mechanical properties of the scaffolds and may act as structural support for cell growth. Also, as the morphology of fibrous scaffolds is similar to the natural extracellular matrix, cells cultured on these scaffolds tend to maintain their phenotypic shape. Different materials and techniques can be used to produce micrfibers- and nanofibers for scaffolds manufacturing; cells, in general, adhere and proliferate very well on PCL, chitosan, silk fibroin, and other nanofibers. One of the most important techniques to produce microfibers/nanofibers is electrospinning. Nanofibrous scaffolds are receiving increasing attention in bone tissue engineering, because they are able to offer a favorable microenvironment for cell attachment and growth. Different polymers can be electrospun, i.e., polyester, polyurethane, PLA, PCL, collagen, and silk. Other materials such as bioglass fibers, nanocellulose, and even carbon fiber and fabrics have been used to help increase bioactivity, mechanical properties of the scaffold, and cell proliferation. A compilation of mechanical properties and most common biological tests performed on fibrous scaffolds is included in this chapter. HIGHLIGHTS The use of microfibers and nanofibers allows for tailoring the scaffold properties. Electrospinning is one of the most important techniques nowadays to produce fibrous scaffolds. Microfibers and nanofibers use in scaffolds is a promising field to improve the behavior of scaffolds in osteochondral applications.
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Affiliation(s)
- Zaida Ortega
- Grupo de investigación en Fabricación Integrada y Avanzada, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain.
| | - María Elena Alemán
- Grupo de investigación en Fabricación Integrada y Avanzada, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Ricardo Donate
- Grupo de investigación en Fabricación Integrada y Avanzada, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
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Parvathi K, Krishnan AG, Anitha A, Jayakumar R, Nair MB. Poly(L-lactic acid) nanofibers containing Cissus quadrangularis induced osteogenic differentiation in vitro. Int J Biol Macromol 2018; 110:514-521. [DOI: 10.1016/j.ijbiomac.2017.11.094] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 12/23/2022]
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Kuttappan S, Anitha A, Minsha MG, Menon PM, Sivanarayanan TB, Vijayachandran LS, Nair MB. BMP2 expressing genetically engineered mesenchymal stem cells on composite fibrous scaffolds for enhanced bone regeneration in segmental defects. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 85:239-248. [PMID: 29407153 DOI: 10.1016/j.msec.2018.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 11/23/2017] [Accepted: 01/09/2018] [Indexed: 12/21/2022]
Abstract
The treatment of critical sized bone defect remains a significant challenge in orthopedics. The objective of the study is to evaluate the effect of the combination of bone morphogenetic protein 2 (BMP2) expressing genetically engineered mesenchymal stem cells (MSCs) [MSCs engineered using a multimam vector, pAceMam1, an emerging gene delivery vector] and an osteoconductive scaffold [silica coated nanohydroxyapatite-gelatin reinforced with fibers] in enhancing bone regeneration in critical sized segmental defects. The scaffold with transfected MSCs showed significantly higher viability, proliferation and osteogenic differentiation in vitro. Further, this group augmented union and new bone formation in critical sized rat femoral segmental defect at 12 weeks when compared to control groups (scaffold with MSCs and scaffold alone). These data demonstrated that the MSCs engineered for transient expression of BMP2 can improve the repair of segmental defects, which paves an avenue for using pAceMam1 as a vector for bone tissue regeneration.
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Affiliation(s)
- Shruthy Kuttappan
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - A Anitha
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - M G Minsha
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - Parvathy M Menon
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - T B Sivanarayanan
- Central Animal Lab Facility, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - Lakshmi Sumitra Vijayachandran
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India.
| | - Manitha B Nair
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India.
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Cai YH, Zhao LS. Non-isothermal Crystallization, Thermal Stability, and Mechanical Performance of Poly(L-lactic acid)/Barium Phenylphosphonate Systems. OPEN CHEM 2017. [DOI: 10.1515/chem-2017-0029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe introduction of a nucleating agent in semi-crystalline polymers is a frequently utilized way to improve the crystallization performance, and the use of a nucleating agent has a very great effect on the performance of the polymer in other areas including thermal stability and mechanical properties. In this investigation, barium phenylphosphonate (BaP) was prepared as a crystallization accelerator for Poly(L-lactic acid) (PLLA), and the non-isothermal crystallization behavior, thermal stability, and mechanical properties of PLLA modified by BaP were investigated using differential scanning calorimetry (DSC), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and electronic tensile testing. Non-isothermal crystallization analysis showed that the BaP could significantly accelerate the crystallization of PLLA, and the non-isothermal crystallization peak shifted to a higher temperature with increasing concentration of BaP, however, the corresponding crystallization peak became wider. XRD results after non-isothermal crystallization confirmed the non-isothermal crystallization DSC results. Additionally, the addition of BaP did not change the crystal form of PLLA. A comparative study on thermal stability indicated that BaP decreased the onset decomposition temperature of PLLA, resulting from the formation of more tiny and imperfect crystals. Whereas the influence of BaP on the thermal decomposition profile of PLLA was negligible. In terms of mechanical properties, the tensile strength and elastic modulus of PLLA/BaP increased compared to the virgin PLLA, unfortunately, the elongation at break decreased.
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Affiliation(s)
- Yan-Hua Cai
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing-402160, P.R. China
| | - Li-Sha Zhao
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing-402160, P.R. China
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A A, Menon D, T B S, Koyakutty M, Mohan CC, Nair SV, Nair MB. Bioinspired Composite Matrix Containing Hydroxyapatite-Silica Core-Shell Nanorods for Bone Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26707-26718. [PMID: 28741921 DOI: 10.1021/acsami.7b07131] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Development of multifunctional bioinspired scaffolds that can stimulate vascularization and regeneration is necessary for the application in bone tissue engineering. Herein, we report a composite matrix containing hydroxyapatite (HA)-silica core-shell nanorods with good biocompatibility, osteogenic differentiation, vascularization, and bone regeneration potential. The biomaterial consists of a crystalline, rod-shaped nanoHA core with uniform amorphous silica sheath (Si-nHA) that retains the characteristic phases of the individual components, confirmed by high-resolution transmission electron microscopy, X-ray diffractometer, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The nanorods were blended with gelatinous matrix to develop as a porous, composite scaffold. The viability and functionality of osteogenically induced mesenchymal stem cells as well as endothelial cells have been significantly improved through the incorporation of Si-nHA within the matrix. Studies in the chicken chorioallantoic membrane and rat models demonstrated that the silica-containing scaffolds not only exhibit good biocompatibility, but also enhance vascularization in comparison to the matrix devoid of silica. Finally, when tested in a critical-sized femoral segmental defect in rats, the nanocomposite scaffolds enhanced new bone formation in par with the biomaterial degradation. In conclusion, the newly developed composite biomimetic scaffold may perform as a promising candidate for bone tissue engineering applications.
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Affiliation(s)
- Anitha A
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
| | - Deepthy Menon
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
| | - Sivanarayanan T B
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
| | - Manzoor Koyakutty
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
| | - Chandini C Mohan
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
| | - Shantikumar V Nair
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
| | - Manitha B Nair
- Center for Nanosciences and Molecular Medicine, Amrita University , Kochi, Kerala 682041, India
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Sun Y, Liu Y, Li S, Liu C, Hu Q. Novel Compound-Forming Technology Using Bioprinting and Electrospinning for Patterning a 3D Scaffold Construct with Multiscale Channels. MICROMACHINES 2016; 7:E238. [PMID: 30404410 PMCID: PMC6189956 DOI: 10.3390/mi7120238] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/06/2016] [Accepted: 12/16/2016] [Indexed: 11/17/2022]
Abstract
One of the biggest challenges for tissue engineering is to efficiently provide oxygen and nutrients to cells on a three-dimensional (3D) engineered scaffold structure. Thus, achieving sufficient vascularization of the structure is a critical problem in tissue engineering. This facilitates the need to develop novel methods to enhance vascularization. Use of patterned hydrogel structures with multiscale channels can be used to achieve the required vascularization. Patterned structures need to be biocompatible and biodegradable. In this study, gelatin was used as the main part of a hydrogel to prepare a biological structure with 3D multiscale channels using bioprinting combined with selection of suitable materials and electrostatic spinning. Human umbilical vein endothelial cells (HUVECs) were then used to confirm efficacy of the structure, inferred from cell viability on different engineered construct designs. HUVECs were seeded on the surface of channels and cultured in vitro. HUVECs showed high viability and diffusion within the construct. This method can be used as a practical platform for the fabrication of engineered construct for vascularization.
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Affiliation(s)
- Yuanshao Sun
- Rapid Manufacturing Engineering Center, Shanghai University, Shanghai 200444, China.
| | - Yuanyuan Liu
- Rapid Manufacturing Engineering Center, Shanghai University, Shanghai 200444, China.
- Shanghai Key Laboratory of Intelligent Manufacturing and Roboties, Shanghai University, Shanghai 200444, China.
| | - Shuai Li
- Rapid Manufacturing Engineering Center, Shanghai University, Shanghai 200444, China.
| | - Change Liu
- Rapid Manufacturing Engineering Center, Shanghai University, Shanghai 200444, China.
| | - Qingxi Hu
- Rapid Manufacturing Engineering Center, Shanghai University, Shanghai 200444, China.
- Shanghai Key Laboratory of Intelligent Manufacturing and Roboties, Shanghai University, Shanghai 200444, China.
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Li J, Chen M, Fan X, Zhou H. Recent advances in bioprinting techniques: approaches, applications and future prospects. J Transl Med 2016; 14:271. [PMID: 27645770 PMCID: PMC5028995 DOI: 10.1186/s12967-016-1028-0] [Citation(s) in RCA: 269] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 09/05/2016] [Indexed: 12/25/2022] Open
Abstract
Bioprinting technology shows potential in tissue engineering for the fabrication of scaffolds, cells, tissues and organs reproducibly and with high accuracy. Bioprinting technologies are mainly divided into three categories, inkjet-based bioprinting, pressure-assisted bioprinting and laser-assisted bioprinting, based on their underlying printing principles. These various printing technologies have their advantages and limitations. Bioprinting utilizes biomaterials, cells or cell factors as a "bioink" to fabricate prospective tissue structures. Biomaterial parameters such as biocompatibility, cell viability and the cellular microenvironment strongly influence the printed product. Various printing technologies have been investigated, and great progress has been made in printing various types of tissue, including vasculature, heart, bone, cartilage, skin and liver. This review introduces basic principles and key aspects of some frequently used printing technologies. We focus on recent advances in three-dimensional printing applications, current challenges and future directions.
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Affiliation(s)
- Jipeng Li
- Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 People’s Republic of China
| | - Mingjiao Chen
- Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 People’s Republic of China
| | - Xianqun Fan
- Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 People’s Republic of China
| | - Huifang Zhou
- Department of Ophthalmology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 People’s Republic of China
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Biomimetic composite scaffolds containing bioceramics and collagen/gelatin for bone tissue engineering - A mini review. Int J Biol Macromol 2016; 93:1390-1401. [PMID: 27316767 DOI: 10.1016/j.ijbiomac.2016.06.043] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 06/03/2016] [Accepted: 06/13/2016] [Indexed: 12/13/2022]
Abstract
Bone is a natural composite material consisting of an organic phase (collagen) and a mineral phase (calcium phosphate, especially hydroxyapatite). The strength of bone is attributed to the apatite, while the collagen fibrils are responsible for the toughness and visco-elasticity. The challenge in bone tissue engineering is to develop such biomimetic composite scaffolds, having a balance between biological and biomechanical properties. This review summarizes the current state of the field by outlining composite scaffolds made of gelatin/collagen in combination with bioactive ceramics for bone tissue engineering application.
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J A, Kuttappan S, Keyan KS, Nair MB. Evaluation of osteoinductive and endothelial differentiation potential of Platelet-Rich Plasma incorporated Gelatin-Nanohydroxyapatite Fibrous Matrix. J Biomed Mater Res B Appl Biomater 2016; 104:771-81. [DOI: 10.1002/jbm.b.33605] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 11/22/2015] [Accepted: 12/03/2015] [Indexed: 02/03/2023]
Affiliation(s)
- Anjana J
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences & Research Center, Amrita Vishwa Vidyapeetham University; Kochi 682041 Kerala India
| | - Shruthy Kuttappan
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences & Research Center, Amrita Vishwa Vidyapeetham University; Kochi 682041 Kerala India
| | - Kripa S. Keyan
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences & Research Center, Amrita Vishwa Vidyapeetham University; Kochi 682041 Kerala India
| | - Manitha B. Nair
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences & Research Center, Amrita Vishwa Vidyapeetham University; Kochi 682041 Kerala India
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