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Margolis G, Polyak B, Cohen S. Magnetic Induction of Multiscale Anisotropy in Macroporous Alginate Scaffolds. NANO LETTERS 2018; 18:7314-7322. [PMID: 30380888 DOI: 10.1021/acs.nanolett.8b03514] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nano- and microscale topographical cues have become recognized as major regulators of cell growth, migration, and phenotype. In tissue engineering, the complex and anisotropic architecture of culture platforms is aimed to imitate the high degree of spatial organization of the extracellular matrix and basement membrane components. Here, we developed a method of creating a novel, magnetically aligned, three-dimensional (3D) tissue culture matrix with three distinct classes of anisotropy-surface topography, microstructure, and physical properties. Alginate-stabilized magnetic nanoparticles (MNPs) were added to a cross-linked alginate solution, and an external magnetic field of about 2400 G was applied during freezing to form the aligned macroporous scaffold structure. The resultant scaffold exhibited anisotropic topographic features on the submicron scale, the directionality of the pore shape, and increased scaffold stiffness in the direction of magnetic alignment. These scaffold features were modulated by an alteration in the impregnated MNP size and concentration, as quantified by electron microscopy, advanced image processing analyses, and rheological methods. Mouse myoblasts (C2C12) cultured on the magnetically aligned scaffolds, demonstrated co-oriented morphology in the direction of the magnetic alignment. In summary, magnetic alignment introduces several degrees of anisotropy in the scaffold structure, providing diverse mechanical cues that can affect seeded cells and further tissue development. Multiscale anisotropy together with the capability of the MNP-containing alginate scaffolds to undergo reversible shape deformation in an oscillating magnetic field creates interesting opportunities for multifarious stimulation of cells and functional tissue development.
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Affiliation(s)
- Gal Margolis
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering , Ben-Gurion University of the Negev , Beer-Sheva 8410501 , Israel
| | - Boris Polyak
- Department of Surgery, Pharmacology, and Physiology , Drexel University , Philadelphia , Pennsylvania 19102 , United States
| | - Smadar Cohen
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering , Ben-Gurion University of the Negev , Beer-Sheva 8410501 , Israel
- The Ilse Katz Institute for Nanoscale Science and Technology , Ben-Gurion University of the Negev , Beer-Sheva 8410501 , Israel
- Regenerative Medicine and Stem Cell (RMSC) Research Center , Ben-Gurion University of the Negev , Beer-Sheva 8410501 , Israel
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102
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Bubble Melt Electrospinning for Production of Polymer Microfibers. Polymers (Basel) 2018; 10:polym10111246. [PMID: 30961171 PMCID: PMC6401807 DOI: 10.3390/polym10111246] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/04/2018] [Accepted: 11/07/2018] [Indexed: 11/24/2022] Open
Abstract
In this paper, we report an interesting bubble melt electrospinning (e-spinning) to produce polymer microfibers. Usually, melt e-spinning for fabricating ultrafine fibers needs “Taylor cone”, which is formed on the tip of the spinneret. The spinneret is also the bottleneck for mass production in melt e-spinning. In this work, a metal needle-free method was tried in the melt e-spinning process. The “Taylor cone” was formed on the surface of the broken polymer melt bubble, which was produced by an airflow. With the applied voltage ranging from 18 to 25 kV, the heating temperature was about 210–250 °C, and polyurethane (TPU) and polylactic acid (PLA) microfibers were successfully fabricated by this new melt e-spinning technique. During the melt e-spinning process, polymer melt jets ejected from the burst bubbles could be observed with a high-speed camera. Then, polymer microfibers could be obtained on the grounded collector. The fiber diameter ranged from 45 down to 5 μm. The results indicate that bubble melt e-spinning may be a promising method for needleless production in melt e-spinning.
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104
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Ether-Oxygen Containing Electrospun Microfibrous and Sub-Microfibrous Scaffolds Based on Poly(butylene 1,4-cyclohexanedicarboxylate) for Skeletal Muscle Tissue Engineering. Int J Mol Sci 2018; 19:ijms19103212. [PMID: 30336625 PMCID: PMC6214009 DOI: 10.3390/ijms19103212] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/10/2018] [Accepted: 10/11/2018] [Indexed: 01/29/2023] Open
Abstract
We report the study of novel biodegradable electrospun scaffolds from poly(butylene 1,4-cyclohexandicarboxylate-co-triethylene cyclohexanedicarboxylate) (P(BCE-co-TECE)) as support for in vitro and in vivo muscle tissue regeneration. We demonstrate that chemical composition, i.e., the amount of TECE co-units (constituted of polyethylene glycol-like moieties), and fibre morphology, i.e., aligned microfibrous or sub-microfibrous scaffolds, are crucial in determining the material biocompatibility. Indeed, the presence of ether linkages influences surface wettability, mechanical properties, hydrolytic degradation rate, and density of cell anchoring points of the studied materials. On the other hand, electrospun scaffolds improve cell adhesion, proliferation, and differentiation by favouring cell alignment along fibre direction (fibre morphology), also allowing for better cell infiltration and oxygen and nutrient diffusion (fibre size). Overall, C2C12 myogenic cells highly differentiated into mature myotubes when cultured on microfibres realised with the copolymer richest in TECE co-units (micro-P73 mat). Lastly, when transplanted in the tibialis anterior muscles of healthy, injured, or dystrophic mice, micro-P73 mat appeared highly vascularised, colonised by murine cells and perfectly integrated with host muscles, thus confirming the suitability of P(BCE-co-TECE) scaffolds as substrates for skeletal muscle tissue engineering.
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105
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Li H, Ding Q, Chen X, Huang C, Jin X, Ke Q. A facile method for fabricating nano/microfibrous three-dimensional scaffold with hierarchically porous to enhance cell infiltration. J Appl Polym Sci 2018. [DOI: 10.1002/app.47046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- H. Li
- Key Laboratory of Textile Science & Technology, College of Textiles; Donghua University; Shanghai 201620 People's Republic of China
| | - Q. Ding
- Key Laboratory of Textile Science & Technology, College of Textiles; Donghua University; Shanghai 201620 People's Republic of China
| | - X. Chen
- Key Laboratory of Textile Science & Technology, College of Textiles; Donghua University; Shanghai 201620 People's Republic of China
| | - C. Huang
- Key Laboratory of Textile Science & Technology, College of Textiles; Donghua University; Shanghai 201620 People's Republic of China
| | - X. Jin
- Key Laboratory of Textile Science & Technology, College of Textiles; Donghua University; Shanghai 201620 People's Republic of China
| | - Q. Ke
- Key Laboratory of Textile Science & Technology, College of Textiles; Donghua University; Shanghai 201620 People's Republic of China
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106
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Update on the main use of biomaterials and techniques associated with tissue engineering. Drug Discov Today 2018; 23:1474-1488. [DOI: 10.1016/j.drudis.2018.03.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 03/08/2018] [Accepted: 03/27/2018] [Indexed: 12/14/2022]
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107
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Polymer blend nanofibers containing polycaprolactone as biocompatible and biodegradable binding agent to fabricate electrospun three-dimensional scaffolds/structures. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.074] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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108
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Neurogenic Differentiation of Human Dental Pulp Stem Cells on Graphene-Polycaprolactone Hybrid Nanofibers. NANOMATERIALS 2018; 8:nano8070554. [PMID: 30037100 PMCID: PMC6071115 DOI: 10.3390/nano8070554] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/15/2018] [Accepted: 07/16/2018] [Indexed: 01/09/2023]
Abstract
Stem cells derived from dental tissues—dental stem cells—are favored due to their easy acquisition. Among them, dental pulp stem cells (DPSCs) extracted from the dental pulp have many advantages, such as high proliferation and a highly purified population. Although their ability for neurogenic differentiation has been highlighted and neurogenic differentiation using electrospun nanofibers (NFs) has been performed, graphene-incorporated NFs have never been applied for DPSC neurogenic differentiation. Here, reduced graphene oxide (RGO)-polycaprolactone (PCL) hybrid electrospun NFs were developed and applied for enhanced neurogenesis of DPSCs. First, RGO-PCL NFs were fabricated by electrospinning with incorporation of RGO and alignments, and their chemical and morphological characteristics were evaluated. Furthermore, in vitro NF properties, such as influence on the cellular alignments and cell viability of DPSCs, were also analyzed. The influences of NFs on DPSCs neurogenesis were also analyzed. The results confirmed that an appropriate concentration of RGO promoted better DPSC neurogenesis. Furthermore, the use of random NFs facilitated contiguous junctions of differentiated cells, whereas the use of aligned NFs facilitated an aligned junction of differentiated cells along the direction of NF alignments. Our findings showed that RGO-PCL NFs can be a useful tool for DPSC neurogenesis, which will help regeneration in neurodegenerative and neurodefective diseases.
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Stocco TD, Bassous NJ, Zhao S, Granato AEC, Webster TJ, Lobo AO. Nanofibrous scaffolds for biomedical applications. NANOSCALE 2018; 10:12228-12255. [PMID: 29947408 DOI: 10.1039/c8nr02002g] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tissue engineering is an emergent and very interesting research field, providing potential solutions for a myriad of challenges in healthcare. Fibrous scaffolds specifically have shown promise as an effective tissue engineering method, as their high length-to-width ratio mimics that of extracellular matrix components, which in turn guides tissue formation, promotes cellular adhesion and improves mechanical properties. In this review paper, we discuss in detail both the importance of fibrous scaffolds for the promotion of tissue growth and the different methods to produce fibrous biomaterials to possess favorable and unique characteristics. Here, we focus on the pressing need to develop biomimetic structures that promote an ideal environment to encourage tissue formation. In addition, we discuss different biomedical applications in which fibrous scaffolds can be useful, identifying their importance, relevant aspects, and remaining significant challenges. In conclusion, we provide comments on the future direction of fibrous scaffolds and the best way to produce them, proposed in light of recent technological advances and the newest and most promising fabrication techniques.
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Affiliation(s)
- Thiago D Stocco
- Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
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110
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Li W, Cicek N, Levin DB, Liu S. Enabling electrospinning of medium-chain length polyhydroxyalkanoates (PHAs) by blending with short-chain length PHAs. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1466136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wei Li
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
| | - Nazim Cicek
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
| | - David B. Levin
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
| | - Song Liu
- Department of Biosystems Engineering, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, Canada
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111
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Electrospun polyvinyl alcohol/gelatin/chondroitin sulfate nanofibrous scaffold: Fabrication and in vitro evaluation. Int J Biol Macromol 2018; 114:1248-1256. [DOI: 10.1016/j.ijbiomac.2018.04.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/16/2018] [Accepted: 04/02/2018] [Indexed: 11/19/2022]
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112
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From nano to micro to macro: Electrospun hierarchically structured polymeric fibers for biomedical applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.12.003] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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113
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Nanofiber technology in the ex vivo expansion of cord blood-derived hematopoietic stem cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1707-1718. [PMID: 29753127 DOI: 10.1016/j.nano.2018.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/18/2018] [Accepted: 04/24/2018] [Indexed: 02/07/2023]
Abstract
Umbilical cord blood (CB) can be used as an alternative source of hematopoietic stem cells (HSCs) for transplantation in hematological and non-hematological disorders. Despite several recognized advantages the limited cell number in CB one unit still restricts its clinical use. The success of transplantation greatly depends on the levels of total nucleated cell and CD34+ cell counts. Thus, many ex vivo strategies have been developed within the last decade in order to solve this obstacle, with more or less success, mainly determined by the degree of difficulty related with maintaining HSCs self-renewal and stemness properties after long-term expansion. Different research groups have developed very promising and diverse CB-derived HSC expansion strategies using nanofiber scaffolds. Here we review the state-of-the-art of nanofiber technology-based CB-derived HSC expansion.
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114
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Mota C, Milazzo M, Panetta D, Trombi L, Gramigna V, Salvadori PA, Giannotti S, Bruschini L, Stefanini C, Moroni L, Berrettini S, Danti S. 3D fiber deposited polymeric scaffolds for external auditory canal wall. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:63. [PMID: 29736776 DOI: 10.1007/s10856-018-6071-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
The external auditory canal (EAC) is an osseocartilaginous structure extending from the auricle to the eardrum, which can be affected by congenital, inflammatory, and neoplastic diseases, thus reconstructive materials are needed. Current biomaterial-based approaches for the surgical reconstruction of EAC posterior wall still suffer from resorption (biological) and extrusion (synthetic). In this study, 3D fiber deposited scaffolds based on poly(ethylene oxide terephthalate)/poly(butylene terephthalate) were designed and fabricated to replace the EAC wall. Fiber diameter and scaffold porosity were optimized, leading to 200 ± 33 µm and 55% ± 5%, respectively. The mechanical properties were evaluated, resulting in a Young's modulus of 25.1 ± 7.0 MPa. Finally, the EAC scaffolds were tested in vitro with osteo-differentiated human mesenchymal stromal cells (hMSCs) with different seeding methods to produce homogeneously colonized replacements of interest for otologic surgery. This study demonstrated the fabrication feasibility of EAC wall scaffolds aimed to match several important requirements for biomaterial application to the ear under the Tissue Engineering paradigm, including shape, porosity, surface area, mechanical properties and favorable in vitro interaction with osteoinduced hMSCs. This study demonstrated the fabrication feasibility of outer ear canal wall scaffolds via additive manufacturing. Aimed to match several important requirements for biomaterial application to ear replacements under the Tissue Engineering paradigm, including shape, porosity and pore size, surface area, mechanical properties and favorable in vitro interaction with osteo-differentiated mesenchymal stromal cells.
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Affiliation(s)
- Carlos Mota
- Institute for Technology Inspired Regenerative Medicine (MERLN), Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
| | - Mario Milazzo
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, PI, Italy
| | - Daniele Panetta
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Luisa Trombi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Vera Gramigna
- Institute of Bioimaging and Molecular Physiology, National Research Council (CNR), Germaneto, CZ, Italy
| | - Piero A Salvadori
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Stefano Giannotti
- Department of Medical and Surgical Sciences and Neurosciences, University of Siena, Siena, Italy
| | - Luca Bruschini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, Pisa, Italy
| | - Cesare Stefanini
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, PI, Italy
| | - Lorenzo Moroni
- Institute for Technology Inspired Regenerative Medicine (MERLN), Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
| | - Stefano Berrettini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, Pisa, Italy
| | - Serena Danti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, PI, Italy.
- Dept. of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, Pisa, Italy.
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115
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116
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Sen U, Chatterjee S, Sinha Mahapatra P, Ganguly R, Dodge R, Yu L, Megaridis CM. Surface-Wettability Patterning for Distributing High-Momentum Water Jets on Porous Polymeric Substrates. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5038-5049. [PMID: 29304279 DOI: 10.1021/acsami.7b13744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Liquid jet impingement on porous materials is particularly important in many applications of heat transfer, filtration, or in incontinence products. Generally, it is desired that the liquid not penetrate the substrate at or near the point of jet impact, but rather be distributed over a wider area before reaching the back side. A facile wettability-patterning technique is presented, whereby a water jet impinging orthogonally on a wettability-patterned nonwoven substrate is distributed on the top surface and through the porous matrix, and ultimately dispensed from prespecified points underneath the sample. A systematic approach is adopted to identify the optimum design that allows for a uniform distribution of the liquid on horizontally mounted substrates of ∼50 cm2 area, with minimal or no spilling over the sample edges at jet flow rates exceeding 1 L/min. The effect of the location of jet impingement on liquid distribution is also studied, and the design is observed to perform well even under offset jet impact conditions.
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Affiliation(s)
- Uddalok Sen
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Souvick Chatterjee
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Pallab Sinha Mahapatra
- Department of Mechanical Engineering, Indian Institute of Technology Madras , Chennai 600036, India
| | - Ranjan Ganguly
- Department of Power Engineering, Jadavpur University , Kolkata 700098, India
| | - Richard Dodge
- Corporate Research and Engineering, Kimberly-Clark Corporation , Neenah, Wisconsin 54956, United States
| | - Lisha Yu
- Corporate Research and Engineering, Kimberly-Clark Corporation , Neenah, Wisconsin 54956, United States
| | - Constantine M Megaridis
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
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117
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Qu Y, Wang B, Chu B, Liu C, Rong X, Chen H, Peng J, Qian Z. Injectable and Thermosensitive Hydrogel and PDLLA Electrospun Nanofiber Membrane Composites for Guided Spinal Fusion. ACS APPLIED MATERIALS & INTERFACES 2018; 10:4462-4470. [PMID: 29338185 DOI: 10.1021/acsami.7b17020] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Spinal fusion is the classic treatment to achieve spinal stability for the treatment of the spinal disease. Generally, spinal fusion still has to combine a certain of bone matrix for promoting bone formation to achieve the desired fusion effect based on the surgery, including the traditional bone matrix, such as the autologous bone, allografts and xenografts. Nevertheless, some problems still existed such as the immunogenic problems, the secondary wound, and pathogenic transfer and so on. Here the injectable thermosensitive hydrogel could substitute to avoid the problems as a potential biological scaffold for tissue engineering. Once injected, they could fill in the irregular-shaped cavity and change to a gel state at physiological temperature. We wanted to design the collagen/n-HA/BMP-2@PCEC/PECE hydrogel composites based on previous work about collagen/n-HA/PECE hydrogel to exhibit better performance in guiding spinal fusion because of the addition of BMP-2@PCEC nanoparticles (PCEC, PCL-PEG-PCL). However, when the hydrogels were injected, one of the surfaces was in contact with the spine, but others were in contact with soft tissue like muscles and fascia. The release behavior was the same at the different surfaces, so the factors could be released into the soft tissue, and it may then be consumed or lead to ectopic bone formation. The hydrogel composites should be improved to adjust the direction of the releaser behavior. In consequence, we wrapped an electrostatic spinning nanofiber membrane possessing hydrophobicity around the hydrogels. In this study, we developed a system that the collagen/n-HA/BMP-2@PCEC/PECE hydrogels were wrapped with the hydrophobicity PDLLA electrospun nanofiber membrane, setting up a barrier between the hydrogels and the soft tissue. The system could exhibit biocompatibility, preventing the factors from escaping to keep their retention in the needed places of osteogenesis; the results demonstrated that it showed an excellent effect on spinal fusion.
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Affiliation(s)
- Ying Qu
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - BeiYu Wang
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - BingYang Chu
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - ChenLu Liu
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - Xin Rong
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - Hua Chen
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - JinRong Peng
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
| | - ZhiYong Qian
- Department of Hematology and Research Laboratory of Hematology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center , Sichuan, China
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118
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Li H, Huang C, Jin X, Ke Q. An electrospun poly(ε-caprolactone) nanocomposite fibrous mat with a high content of hydroxyapatite to promote cell infiltration. RSC Adv 2018; 8:25228-25235. [PMID: 35547952 PMCID: PMC9087819 DOI: 10.1039/c8ra02059k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/05/2018] [Indexed: 11/21/2022] Open
Abstract
Electrospun polymer/inorganic biomimetic nanocomposite scaffolds have emerged for use in a new strategy for bone regeneration. In this study, a poly(ε-caprolactone) (PCL)/hydroxyapatite (HAp) nanocomposite mat with a HAp content as high as 60% was prepared via one-step electrospinning using trifluoroethanol as the solvent, and it has superior dispersibility and spinnability. The structure and physicochemical properties of the scaffolds were studied using scanning electron microscopy and spectroscopic techniques. X-ray diffraction and Fourier transformed infrared spectroscopy confirmed the presence of HAp in the composite PCL fibers. The results of cell culturing suggested that the incorporation of HAp with PCL could regulate the cytoskeleton and the differentiation of cells. More interestingly, the high content of HAp was also found to be conducive to the infiltration of MC-3T3 cells into the mat. The results indicated the potential of PCL/HAp scaffolds as a promising substitute for bone regeneration. PCL nanofibers with 60% HAp content were fabricated, and the presence of HAp regulated cell morphology to enhance cell infiltration.![]()
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Affiliation(s)
- Haoxuan Li
- Key Laboratory of Textile Science & Technology
- College of Textiles
- Donghua University
- Shanghai 201620
- P. R. China
| | - Chen Huang
- Key Laboratory of Textile Science & Technology
- College of Textiles
- Donghua University
- Shanghai 201620
- P. R. China
| | - Xiangyu Jin
- Key Laboratory of Textile Science & Technology
- College of Textiles
- Donghua University
- Shanghai 201620
- P. R. China
| | - Qinfei Ke
- Key Laboratory of Textile Science & Technology
- College of Textiles
- Donghua University
- Shanghai 201620
- P. R. China
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119
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Jiang S, Chen Y, Duan G, Mei C, Greiner A, Agarwal S. Electrospun nanofiber reinforced composites: a review. Polym Chem 2018. [DOI: 10.1039/c8py00378e] [Citation(s) in RCA: 357] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
High performance electrospun nanofibers could be used to fabricate nanofiber reinforced composites.
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Affiliation(s)
- Shaohua Jiang
- College of Materials Science and Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yiming Chen
- College of Materials Science and Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Gaigai Duan
- College of Materials Science and Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Changtong Mei
- College of Materials Science and Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Andreas Greiner
- University of Bayreuth
- Faculty of Biology
- Chemistry and Earth Sciences
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces
- Germany
| | - Seema Agarwal
- University of Bayreuth
- Faculty of Biology
- Chemistry and Earth Sciences
- Macromolecular Chemistry II and Bayreuth Center for Colloids and Interfaces
- Germany
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120
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Song P, Xu Z, Dargusch MS, Chen ZG, Wang H, Guo Q. Granular Nanostructure: A Facile Biomimetic Strategy for the Design of Supertough Polymeric Materials with High Ductility and Strength. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1704661. [PMID: 29068548 DOI: 10.1002/adma.201704661] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/13/2017] [Indexed: 05/26/2023]
Abstract
The realization of high strength, large ductility, and great toughness for polymeric materials is a vital factor for practical applications in industry. Unfortunately, until now this remains a huge challenge due to the common opposing trends that exist when promoting improvements in these properties using materials design strategies. In the natural world, the cuticle of mussel byssus exhibits a breaking strain as high as 100%, which is revealed to arise from an architectural granular microphase-separated structure within the protein matrix. Herein, a facile biomimetic designed granular nanostructured polymer film is reported. Such biomimetic nanostructured polymer films show a world-record toughness of 122 (± 6.1) J g-1 as compared with other polyvinyl alcohol films, with a breaking strain as high as 205% and a high tensile strength of 91.2 MPa, which is much superior to those of most engineering plastics. This portfolio of outstanding properties can be attributed to the unique nanoscale granular phase-separated structure of this material. These biomimetic designed polymer films are expected to find promising applications in tissue engineering and biomaterials fields, such as artificial skin and tendon, which opens up an innovative methodology for the design of robust polymer materials for a range of innovative future applications.
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Affiliation(s)
- Pingan Song
- Department of Materials, Zhejiang A&F University, Hangzhou, 311300, China
- Centre for Future Materials, The University of Southern Queensland, Springfield, QLD, 4300, Australia
| | - Zhiguang Xu
- China-Australia Institute for Advanced Materials and Manufacture, Jiaxing University, Jiaxing, 314000, China
| | - Matthew S Dargusch
- Materials Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
- Centre for Advanced Materials Processing and Manufacturing, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Zhi-Gang Chen
- Centre for Future Materials, The University of Southern Queensland, Springfield, QLD, 4300, Australia
- Materials Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Hao Wang
- Centre for Future Materials, The University of Southern Queensland, Springfield, QLD, 4300, Australia
| | - Qipeng Guo
- Polymers Research Group, Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, VIC, 3220, Australia
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121
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Wu Z, Xu Y, Li H. Synergetic stimulation of nanostructure and chemistry cues on behaviors of fibroblasts and endothelial cells. Colloids Surf B Biointerfaces 2017; 160:500-509. [DOI: 10.1016/j.colsurfb.2017.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 09/15/2017] [Accepted: 10/01/2017] [Indexed: 12/11/2022]
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122
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Davoudi P, Assadpour S, Derakhshan MA, Ai J, Solouk A, Ghanbari H. Biomimetic modification of polyurethane-based nanofibrous vascular grafts: A promising approach towards stable endothelial lining. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:213-221. [DOI: 10.1016/j.msec.2017.05.140] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 05/24/2017] [Accepted: 05/28/2017] [Indexed: 12/20/2022]
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123
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Khalili S, Nouri Khorasani S, Razavi M, Hashemi Beni B, Heydari F, Tamayol A. Nanofibrous scaffolds with biomimetic structure. J Biomed Mater Res A 2017; 106:370-376. [DOI: 10.1002/jbm.a.36246] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 09/16/2017] [Accepted: 09/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Shahla Khalili
- Department of Chemical Engineering; Isfahan University of Technology; Isfahan 84156-83111 Iran
- Center for Biomedical Engineering, Department of Medicine; Brigham and Women's Hospital, Harvard Medical School; Boston Massachusetts 02139
- Harvard- MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; Cambridge Massachusetts 02139
| | - Saied Nouri Khorasani
- Department of Chemical Engineering; Isfahan University of Technology; Isfahan 84156-83111 Iran
| | - Mohammad Razavi
- Department of Oral and Maxillofacial Pathology; School of Dentistry, Isfahan University of Medical Sciences; Isfahan 81746-73461 Iran
- Torabinejad Dental Sciences Research Center, School of Dentistry, Isfahan University of Medical Sciences; Isfahan 81746-73461 Iran
| | - Batol Hashemi Beni
- Department of Anatomical Sciences; Medical School, Isfahan University of Medical Sciences; Isfahan 81746-73461 Iran
| | - Fariba Heydari
- Torabinejad Dental Sciences Research Center, School of Dentistry, Isfahan University of Medical Sciences; Isfahan 81746-73461 Iran
| | - Ali Tamayol
- Center for Biomedical Engineering, Department of Medicine; Brigham and Women's Hospital, Harvard Medical School; Boston Massachusetts 02139
- Harvard- MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; Cambridge Massachusetts 02139
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124
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Zhou G, Liu S, Ma Y, Xu W, Meng W, Lin X, Wang W, Wang S, Zhang J. Innovative biodegradable poly(L-lactide)/collagen/hydroxyapatite composite fibrous scaffolds promote osteoblastic proliferation and differentiation. Int J Nanomedicine 2017; 12:7577-7588. [PMID: 29075116 PMCID: PMC5648310 DOI: 10.2147/ijn.s146679] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The development of an artificial bone graft which can promote the regeneration of fractures or diseased bones is currently the most challenging aspect in bone tissue engineering. To achieve the purpose of promoting bone proliferation and differentiation, the artificial graft needs have a similar structure and composition of extracellular matrix. One-step electrospinning method of biocomposite nanofibers containing hydroxyapatite (HA) nanoparticles and collagen (Coll) were developed for potential application in bone tissue engineering. Nanocomposite scaffolds of poly(L-lactide) (PLLA), PLLA/HA, PLLA/Coll, and PLLA/Coll/HA were fabricated by electrospinning. The morphology, diameter, elements, hydrophilicity, and biodegradability of the composite scaffolds have been investigated. The biocompatibility of different nanocomposite scaffolds was assessed using mouse osteoblasts MC3T3-E1 in vitro, and the proliferation, differentiation, and mineralization of cells on different nanofibrous scaffolds were investigated. The results showed that PLLA/Coll/HA nanofiber scaffolds enhanced cell adhesion, spreading, proliferation, differentiation, mineralization, and gene expression of osteogenic markers compared to other scaffolds. In addition, the nanofibrous scaffolds maintained a stable composition at the beginning of the degradation period and morphology wastage and weight loss were observed when incubated for up to 80 days in physiological simulated conditions. The PLLA/Coll/HA composite nanofibrous scaffolds could be a potential material for guided bone regeneration.
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Affiliation(s)
- Guoqiang Zhou
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei, People’s Republic of China
| | - Sudan Liu
- College of Chemistry and Environmental Science
| | - Yanyan Ma
- College of Chemistry and Environmental Science
| | - Wenshi Xu
- College of Chemistry and Environmental Science
| | - Wei Meng
- College of Chemistry and Environmental Science
| | - Xue Lin
- College of Chemistry and Environmental Science
| | - Wenying Wang
- College of Chemistry and Environmental Science
- Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei, People’s Republic of China
| | - Shuxiang Wang
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei, People’s Republic of China
| | - Jinchao Zhang
- College of Chemistry and Environmental Science
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, Hebei, People’s Republic of China
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125
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Goonoo N, Bhaw-Luximon A, Jonas U, Jhurry D, Schönherr H. Enhanced Differentiation of Human Preosteoblasts on Electrospun Blend Fiber Mats of Polydioxanone and Anionic Sulfated Polysaccharides. ACS Biomater Sci Eng 2017; 3:3447-3458. [PMID: 29285521 PMCID: PMC5739512 DOI: 10.1021/acsbiomaterials.7b00350] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 10/12/2017] [Indexed: 02/02/2023]
Abstract
![]()
The
viability and differentiation of SaOS-2 preosteoblasts on fiber
mats of blends comprising of the biodegradable poly(ester-ether) polydioxanone
(PDX) and the sulfate-containing anionic polysaccharides kappa-carrageenan
(KCG) and fucoidan (FUC) were investigated for a range of different
blend compositions. The detailed analysis of the blend nanofiber properties
revealed a different degree of miscibility of PDX and the polysaccharide
leading to a different enrichment at the surface of the blend nanofibers,
which were observed to be stable in phosphate buffer solution (PBS)
for up to 5 weeks. The fibrous mats of PDX/FUC led to the highest
osteogenic differentiation with very good cell viability. The electrospun
blend fibers also supported human-induced pluripotent stem (iPS) cells
and iPS cell-derived embryoid bodies with high cell viability, which
underlines the potential of these novel blend fiber systems for optimized
performance in bone tissue engineering applications.
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Affiliation(s)
- Nowsheen Goonoo
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen, Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany.,Biomaterials, Drug Delivery and Nanotechnology Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Mauritius
| | - Archana Bhaw-Luximon
- Biomaterials, Drug Delivery and Nanotechnology Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Mauritius
| | - Ulrich Jonas
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
| | - Dhanjay Jhurry
- Biomaterials, Drug Delivery and Nanotechnology Unit, Centre for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Mauritius
| | - Holger Schönherr
- Physical Chemistry I, Department of Chemistry and Biology & Research Center of Micro and Nanochemistry and Engineering (Cμ), University of Siegen, Adolf-Reichwein-Strasse 2, 57076 Siegen, Germany
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126
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Li Y, Wan W. Exploring Polymer Nanofiber Mechanics: A review of the methods for determining their properties. IEEE NANOTECHNOLOGY MAGAZINE 2017. [DOI: 10.1109/mnano.2017.2708819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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127
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Liu Y, Zhou G, Liu Z, Guo M, Jiang X, Taskin MB, Zhang Z, Liu J, Tang J, Bai R, Besenbacher F, Chen M, Chen C. Mussel Inspired Polynorepinephrine Functionalized Electrospun Polycaprolactone Microfibers for Muscle Regeneration. Sci Rep 2017; 7:8197. [PMID: 28811636 PMCID: PMC5557809 DOI: 10.1038/s41598-017-08572-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/13/2017] [Indexed: 01/30/2023] Open
Abstract
Electrospun scaffolds with excellent mechanical properties, high specific surface area and a commendable porous network are widely used in tissue engineering. Improving the hydrophilicity and cell adhesion of hydrophobic substrates is the key point to enhance the effectiveness of electrospun scaffolds. In this study, polycaprolactone (PCL) fibrous membranes with appropriate diameter were selected and coated by mussel-inspired poly norepinephrine (pNE). And norepinephrine is a catecholamine functioning as a hormone and neurotransmitter in the human brain. The membrane with smaller diameter fibers, a relative larger specific surface area and the suitable pNE functionalization provided more suitable microenvironment for cell adhesion and proliferation both in vitro and in vivo. The regenerated muscle layer can be integrated well with fibrous membranes and surrounding tissues at the impaired site and thus the mechanical strength reached the value of native tissue. The underlying molecular mechanism is mediated via inhibiting myostatin expression by PI3K/AKT/mTOR hypertrophy pathway. The properly functionalized fibrous membranes hold the potential for repairing muscle injuries. Our current work also provides an insight for rational design and development of better tissue engineering materials for skeletal muscle regeneration.
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Affiliation(s)
- Ying Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Guoqiang Zhou
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Zhu Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China.,Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, College of Chemistry and Environmental Science, Hebei University, Baoding, 071002, China
| | - Mengyu Guo
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Xiumei Jiang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Mehmet Berat Taskin
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark
| | - Zhongyang Zhang
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark
| | - Jing Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Jinglong Tang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Ru Bai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark
| | - Menglin Chen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000, Aarhus C, Denmark.
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China (NCNST), Beijing, 100190, China.
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128
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Hassan MI, Sultana N. Characterization, drug loading and antibacterial activity of nanohydroxyapatite/polycaprolactone (nHA/PCL) electrospun membrane. 3 Biotech 2017; 7:249. [PMID: 28714045 DOI: 10.1007/s13205-017-0889-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 07/11/2017] [Indexed: 11/28/2022] Open
Abstract
Considering the important factor of bioactive nanohydoxyapatite (nHA) to enhance osteoconductivity or bone-bonding capacity, nHA was incorporated into an electrospun polycaprolactone (PCL) membrane using electrospinning techniques. The viscosity of the PCL and nHA/PCL with different concentrations of nHA was measured and the morphology of the electrospun membranes was compared using a field emission scanning electron microscopy. The water contact angle of the nanofiber determined the wettability of the membranes of different concentrations. The surface roughness of the electrospun nanofibers fabricated from pure PCL and nHA/PCL was determined and compared using atomic force microscopy. Attenuated total reflectance Fourier transform infrared spectroscopy was used to study the chemical bonding of the composite electrospun nanofibers. Beadless nanofibers were achieved after the incorporation of nHA with a diameter of 200-700 nm. Results showed that the fiber diameter and the surface roughness of electrospun nanofibers were significantly increased after the incorporation of nHA. In contrast, the water contact angle (132° ± 3.5°) was reduced for PCL membrane after addition of 10% (w/w) nHA (112° ± 3.0°). Ultimate tensile strengths of PCL membrane and 10% (w/w) nHA/PCL membrane were 25.02 ± 2.3 and 18.5 ± 4.4 MPa. A model drug tetracycline hydrochloride was successfully loaded in the membrane and the membrane demonstrated good antibacterial effects against the growth of bacteria by showing inhibition zone for E. coli (2.53 ± 0.06 cm) and B. cereus (2.87 ± 0.06 cm).
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Affiliation(s)
- Mohd Izzat Hassan
- Faculty of Biosciences and Medical Engineering, Universiti Tek nologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia
| | - Naznin Sultana
- Faculty of Biosciences and Medical Engineering, Universiti Tek nologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia.
- Advanced Membrane Technology Research Center, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia.
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129
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Modification of electrospun poly(L-lactic acid)/polyethylenimine nanofibrous scaffolds for biomedical application. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1320661] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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130
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Mayadeo N, Morikawa K, Naraghi M, Green MJ. Modeling of downstream heating in melt electrospinning of polymers. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24394] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nikhil Mayadeo
- Artie McFerrin Department of Chemical EngineeringTexas A&M University, College Station Texas77843
| | - Kai Morikawa
- Department of Aerospace EngineeringTexas A&M University, College Station Texas77843
| | - Mohammad Naraghi
- Department of Aerospace EngineeringTexas A&M University, College Station Texas77843
| | - Micah J. Green
- Artie McFerrin Department of Chemical EngineeringTexas A&M University, College Station Texas77843
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131
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Badaraev A, Nemoykina A, Bolbasov E, Tverdokhlebov S. PLLA scaffold modification using magnetron sputtering of the copper target to provide antibacterial properties. RESOURCE-EFFICIENT TECHNOLOGIES 2017. [DOI: 10.1016/j.reffit.2017.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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132
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Zhu L, Zhang Y, Ji Y. Fabricating poly(1,8-octanediol citrate) elastomer based fibrous mats via electrospinning for soft tissue engineering scaffold. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:93. [PMID: 28510114 DOI: 10.1007/s10856-017-5906-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 05/04/2017] [Indexed: 06/07/2023]
Abstract
Poly(1,8-octanediol citrate) (POC) is a recently developed biodegradable crosslinked elastomer that possesses good cytocompatibility and matchable mechanical properties to soft tissues. However, the thermosetting characteristic reveals a big challenge to manufacture its porous scaffold. Herein, POC elastomer was electrospun into fiber mat using poly(L-lactic acid) (PLLA) as a spinnable carrier. The obtained POC/PLLA fiber mats were characterized by scanning electron microscopy (SEM), dynamic mechanical analysis (DMA), uniaxial tensile test, static-water-contact-angle, thermal analysis, in vitro degradation and biocompatibility test. It was found that the fibrous structure could be formed so long as the POC pre-polymer's content was no more than 50 wt%. The presence of elastic POC component not only strengthened the fiber mats but also toughened the fiber mats. The hydrophilicity of 50/50 fiber mat significantly improved. In vitro degradation rate of POC based fiber mats was much faster than that of pure PLLA. Cyto- and histo-compatibility tests confirmed that the POC/PLLA fiber mats had good biocompatibility for potential applications in soft tissue engineering.
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Affiliation(s)
- Lei Zhu
- State Key Laboratory for Modification of Chemical Fibers & Polymer Materials, College of Material Science & Engineering, Donghua University, Shanghai, 201620, China
| | - Yuanzheng Zhang
- Changhai Hospital of Second Military Medical University, 168 Changhai Road, Shanghai, 200233, China
| | - Yali Ji
- State Key Laboratory for Modification of Chemical Fibers & Polymer Materials, College of Material Science & Engineering, Donghua University, Shanghai, 201620, China.
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133
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Wu Q, Maire M, Lerouge S, Therriault D, Heuzey MC. 3D Printing of Microstructured and Stretchable Chitosan Hydrogel for Guided Cell Growth. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/adbi.201700058] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qinghua Wu
- Department of Chemical Engineering; Polytechnique de Montréal; C.P. 6079, succ. Centre-Ville Montréal H3C 3A7 Québec, Québec Canada
| | - Marion Maire
- École de Technologie Supérieure (ÉTS); The University of Montreal Hospital Research Centre (CRCHUM); 1100 Rue Notre-Dame O Montréal H3C 1K3 Québec Canada
| | - Sophie Lerouge
- École de Technologie Supérieure (ÉTS); The University of Montreal Hospital Research Centre (CRCHUM); 1100 Rue Notre-Dame O Montréal H3C 1K3 Québec Canada
| | - Daniel Therriault
- Laboratory for Multiscale Mechanics (LM2); Polytechnique de Montréal; C.P. 6079, succ. Centre-Ville Montréal H3C 3A7 Québec Canada
| | - Marie-Claude Heuzey
- Department of Chemical Engineering; Polytechnique de Montréal; C.P. 6079, succ. Centre-Ville Montréal H3C 3A7 Québec, Québec Canada
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134
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Goyal R, Vega ME, Pastino AK, Singh S, Guvendiren M, Kohn J, Murthy NS, Schwarzbauer JE. Development of hybrid scaffolds with natural extracellular matrix deposited within synthetic polymeric fibers. J Biomed Mater Res A 2017; 105:2162-2170. [PMID: 28371271 DOI: 10.1002/jbm.a.36078] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/28/2017] [Accepted: 03/24/2017] [Indexed: 12/15/2022]
Abstract
A major challenge of tissue engineering is to generate materials that combine bioactivity with stability in a form that captures the robust nature of native tissues. Here we describe a procedure to fabricate a novel hybrid extracellular matrix (ECM)-synthetic scaffold biomaterial by cell-mediated deposition of ECM within an electrospun fiber mat. Synthetic polymer fiber mats were fabricated using poly(desamino tyrosyl-tyrosine carbonate) (PDTEC) co-spun with poly(ethylene glycol) (PEG) used as a sacrificial polymer. PEG removal increased the overall mat porosity and produced a mat with a layered structure that could be peeled into separate sheets of about 50 μm in thickness. Individual layers had pore sizes and wettability that facilitated cell infiltration over the depth of the scaffold. Confocal microscopy showed the formation of a highly interpenetrated network of cells, fibronectin fibrils, and synthetic fibers mimicking a complex ECM as observed within tissues. Decellularization did not perturb the structure of the matrix or the fiber mat. The resulting hybrid ECM-scaffold promoted cell adhesion and spreading and stimulated new ECM assembly by stem cells and tumor cells. These results identify a new technique for fabricating highly porous synthetic fibrous scaffolds and an approach to supplement them with natural biomimetic cues. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2162-2170, 2017.
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Affiliation(s)
- Ritu Goyal
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey, 08854-8009
| | - Maria E Vega
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544-1014
| | - Alexandra K Pastino
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544-1014
| | - Shivani Singh
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544-1014
| | - Murat Guvendiren
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey, 08854-8009.,Otto H. York Dept. of Chemical, Biological and Environmental Engineering, New Jersey Institute of Technology, Newark, New Jersey, 07102
| | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey, 08854-8009
| | - N Sanjeeva Murthy
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, New Jersey, 08854-8009
| | - Jean E Schwarzbauer
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, 08544-1014
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135
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Hejazi F, Mirzadeh H, Contessi N, Tanzi MC, Faré S. Novel class of collector in electrospinning device for the fabrication of 3D nanofibrous structure for large defect load-bearing tissue engineering application. J Biomed Mater Res A 2017; 105:1535-1548. [DOI: 10.1002/jbm.a.35822] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 06/06/2016] [Accepted: 06/28/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Fatemeh Hejazi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology (Tehran Polytechnic); 424 Hafez Avenue Tehran Iran
- Department of Chemistry; Materials and Chemical Engineering ‘‘G. Natta’’; Politecnico Di Milano, P.Zza Leonardo Da Vinci 32 Milan 20133 Italy
| | - Hamid Mirzadeh
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology (Tehran Polytechnic); 424 Hafez Avenue Tehran Iran
| | - Nicola Contessi
- Department of Chemistry; Materials and Chemical Engineering ‘‘G. Natta’’; Politecnico Di Milano, P.Zza Leonardo Da Vinci 32 Milan 20133 Italy
| | - Maria Cristina Tanzi
- Department of Chemistry; Materials and Chemical Engineering ‘‘G. Natta’’; Politecnico Di Milano, P.Zza Leonardo Da Vinci 32 Milan 20133 Italy
| | - Silvia Faré
- Department of Chemistry; Materials and Chemical Engineering ‘‘G. Natta’’; Politecnico Di Milano, P.Zza Leonardo Da Vinci 32 Milan 20133 Italy
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136
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Li H, Zhu C, Xue J, Ke Q, Xia Y. Enhancing the Mechanical Properties of Electrospun Nanofiber Mats through Controllable Welding at the Cross Points. Macromol Rapid Commun 2017; 38. [PMID: 28295875 DOI: 10.1002/marc.201600723] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/13/2017] [Indexed: 11/11/2022]
Abstract
This communication describes a simple and effective method for welding electrospun nanofibers at the cross points to enhance the mechanical properties of their nonwoven mats. The welding is achieved by placing a nonwoven mat of the nanofibers in a capped vial with the vapor of a proper solvent. For polycaprolactone (PCL) nanofibers, the solvent is dichloromethane (DCM). The welding can be managed in a controllable fashion by simply varying the partial pressure of DCM and/or the exposure time. Relative to the pristine nanofiber mat, the mechanical strength of the welded PCL nanofiber mat can be increased by as much as 200%. Meanwhile, such a treatment does not cause any major structural changes, including morphology, fiber diameter, and pore size. This study provides a generic method for improving the mechanical properties of nonwoven nanofiber mats, holding great potential in various applications.
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Affiliation(s)
- Haoxuan Li
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.,Key Laboratory of Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Chunlei Zhu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Jiajia Xue
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Qinfei Ke
- Key Laboratory of Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.,School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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137
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Synergetic effect of topological cue and periodic mechanical tension-stress on osteogenic differentiation of rat bone mesenchymal stem cells. Colloids Surf B Biointerfaces 2017; 154:1-9. [PMID: 28268191 DOI: 10.1016/j.colsurfb.2017.02.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 02/01/2017] [Accepted: 02/27/2017] [Indexed: 02/05/2023]
Abstract
Mesenchymal stem cells (MSCs) are able to self-renew and differentiate into tissues of mesenchymal origin, making them to be significant for cell-based therapies, such as metabolic bone diseases and bone repair. Regulating the differentiation of MSCs is significant for bone regeneration. Electrospun fibers mimicking natural extracellular matrix (ECM), is an effective artificial ECM to regulate the behaviors and fates of MSCs. The aligned electrospun fibers can modulate polar cell pattern of bone mesenchymal stem cells, which leads to more obvious osteogenic differentiation. Apart from the topographic effect of electrospun fibers, mechanical cues can also intervene the cell behaviors. In this study, the osteogenic differentiation of rat bone mesenchymal stem cells was evaluated, which were cultured on aligned/random electrospun fiber mats materials under mechanical tension intervention. Scanning electron microscope and immune-fluorescent staining were used to directly observe the polarity changing of cellular morphology and cytoskeleton. The results proved that aligned electrospun fibers could be more conducive to promote osteogenic differentiation of rat bone mesenchymal stem cells and this promotion of osteogenic differentiation was enhanced by tension intervention. These results were correlated to the quantitative real-time PCR assay. In general, culturing rat bone mesenchymal stem cells on electrospun fibers under the intervention of mechanical tension is an effective way to mimic a more real cellular microenvironment.
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138
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Li Y, Li X, Zhao R, Wang C, Qiu F, Sun B, Ji H, Qiu J, Wang C. Enhanced adhesion and proliferation of human umbilical vein endothelial cells on conductive PANI-PCL fiber scaffold by electrical stimulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 72:106-112. [DOI: 10.1016/j.msec.2016.11.052] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 10/25/2016] [Accepted: 11/13/2016] [Indexed: 12/31/2022]
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139
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Cho HW, Sung BJ. The glass transition and interfacial dynamics of single strand fibers of polymers. SOFT MATTER 2017; 13:1190-1199. [PMID: 28098313 DOI: 10.1039/c6sm02468h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We investigate the glass transition and interfacial dynamics of single strand fibers of flexible polymers by employing molecular dynamics (MD) simulations along with a coarse grained model. While the polymer fiber has drawn significant attention due to its applicability in tissue engineering and stretchable electronics, its dynamic properties, especially the glass transition temperature (Tg), are yet to be understood at the molecular level. For example, there has been a controversy on the effect of the polymer fiber radius (R) on Tg: Tg decreased with a decrease in R for some polymer fibers, whereas Tg of other polymer fibers was not sensitive to R. In this article, we estimate the bond relaxation time of polymers and evaluate both Tg and fragility (m) as a function of R. We illustrate that Tg of the polymer fiber decreased with a decrease in R monotonically and also that the values of Tg follow faithfully the empirical equation proposed by Keddie et al. as a function of R, which was successfully employed to fit the values of Tg of both polyvinyl alcohol (PVA) fibers and polyethylene (PE) fibers. We also find that the dynamics of polymers at the interface between a polymer fiber and air is faster than that of polymers at the center. By employing Adam-Gibbs theory, we show that the fast interface dynamics of polymer fibers should influence the cooperative motion of monomers, which should be responsible for the decrease in Tg for smaller values of R. Near the interface there are more mobile monomers that participate in the cooperative motions of polymers. Interesting is that due to the curved surface (unlike flat polymer films) the cooperative motion of monomers is anisotropic in polymer fibers.
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Affiliation(s)
- Hyun Woo Cho
- Department of Chemistry and Research Institute for Basic Science, Sogang University, Seoul 121-742, Republic of Korea.
| | - Bong June Sung
- Department of Chemistry and Research Institute for Basic Science, Sogang University, Seoul 121-742, Republic of Korea.
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140
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Stafiej P, Küng F, Thieme D, Czugala M, Kruse FE, Schubert DW, Fuchsluger TA. Adhesion and metabolic activity of human corneal cells on PCL based nanofiber matrices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:764-770. [DOI: 10.1016/j.msec.2016.10.058] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 10/23/2016] [Indexed: 11/15/2022]
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141
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Kim JJ, El-Fiqi A, Kim HW. Synergetic Cues of Bioactive Nanoparticles and Nanofibrous Structure in Bone Scaffolds to Stimulate Osteogenesis and Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2059-2073. [PMID: 28029246 DOI: 10.1021/acsami.6b12089] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Providing a nanotopological physical cue in concert with a bioactive chemical signal within 3D scaffolds, while it being considered a promising approach for bone regeneration, has yet to be explored. Here, we develop 3D porous scaffolds that are networked to be a nanofibrous structure and incorporated with bioactive glass nanoparticles (BGn) to tackle this issue. The presence of BGn and nanofibrous structure (BGn + nanofibrous) substantially increased the surface area, hydro-affinity and protein loading capacity of scaffolds. In particular, the BGn released Si and Ca ions to the levels known to be biologically effective, offering the bone scaffold an ability to deliver therapeutic ions. The mesenchymal stem cells (MSCs) from rats exhibited significantly accelerated adhesion events including cell anchorage, cytoskeletal extensions, and the expression of adhesion signaling molecules on the BGn/nanofibrous scaffolds. The cells gained a more rapid proliferation and migration (penetration) ability over 2 weeks within the BGn + nanofibrous scaffolds than within either nanofibrous or BGn scaffolds. The osteogenesis of MSCs, as confirmed by the expressions of bone-associated genes and proteins, as well as the cellular mineralization was significantly stimulated by the BGn and nanofibrous topology in a synergistic manner. The behaviors of endothelial cells (HUVECs) including cell migration and tubule networking were also enhanced when influenced by the BGn and nanofibrous scaffolds (but more by BGn than by nanofiber). A subcutaneous tissue implantation of the scaffolds further evidenced the in vivo stimulation of neo-blood vessel formation by the BGn + nanofibrous cues, suggesting the possible promising role in bone regeneration. Taken together, the therapeutic ions and nanofibrous topology implemented within 3D scaffolds are considered to play synergistic actions in osteogenesis and angiogenesis, implying the potential usefulness of the BGn + nanofibrous scaffolds for bone tissue engineering.
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Affiliation(s)
- Jung-Ju Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
| | - Ahmed El-Fiqi
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University , Cheonan 330-714, Republic of Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University , Cheonan 330-714, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University , Cheonan 330-714, Republic of Korea
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142
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Englund-Johansson U, Netanyah E, Johansson F. Tailor-Made Electrospun Culture Scaffolds Control Human Neural Progenitor Cell Behavior—Studies on Cellular Migration and Phenotypic Differentiation. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/jbnb.2017.81001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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143
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He J, Jiang N, Qin T, Zhang W, Liu Z, Liu Y, Li D. Microfiber-reinforced nanofibrous scaffolds with structural and material gradients to mimic ligament-to-bone interface. J Mater Chem B 2017; 5:8579-8590. [DOI: 10.1039/c7tb02089a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A unique electrospinning strategy is presented to fabricate microfiber-reinforced nanofibrous scaffolds with material/structure gradients to mimic native ligament–bone interface.
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Affiliation(s)
- Jiankang He
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Nan Jiang
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Ting Qin
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Weijie Zhang
- Department of Knee Joint Surgery
- Hong Hui Hospital
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710054
| | - Zhuo Liu
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Yaxiong Liu
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Dichen Li
- State Key Laboratory for Manufacturing Systems Engineering
- Xi’an Jiaotong University
- Xi’an 710049
- China
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144
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Liu K, Wang N, Wang W, Shi L, Li H, Guo F, Zhang L, Kong L, Wang S, Zhao Y. A bio-inspired high strength three-layer nanofiber vascular graft with structure guided cell growth. J Mater Chem B 2017; 5:3758-3764. [DOI: 10.1039/c7tb00465f] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A bio-inspired three-layer vascular graft with strong mechanical properties and good cell biocompatibility was fabricated by electrospinning. It will play an important role in vessel remodeling and regeneration.
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145
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Zhang B, Yan X, He HW, Yu M, Ning X, Long YZ. Solvent-free electrospinning: opportunities and challenges. Polym Chem 2017. [DOI: 10.1039/c6py01898j] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Electrospinning (e-spinning) has attracted tremendous attention because this technology provides a simple and versatile method for fabricating ultrafine fibers from a rich variety of materials including polymers, composites, and ceramics.
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Affiliation(s)
- Bin Zhang
- Collaborative Innovation Center for Nanomaterials & Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Xu Yan
- Collaborative Innovation Center for Nanomaterials & Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Hong-Wei He
- Collaborative Innovation Center for Nanomaterials & Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Miao Yu
- Collaborative Innovation Center for Nanomaterials & Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
| | - Xin Ning
- Industrial Research Institute of Nonwovens & Technical Textiles
- Qingdao University
- Qingdao 266071
- China
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Devices
- College of Physics
- Qingdao University
- Qingdao 266071
- China
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146
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Loiola LMD, Cortez Tornello PR, Abraham GA, Felisberti MI. Amphiphilic electrospun scaffolds of PLLA–PEO–PPO block copolymers: preparation, characterization and drug-release behaviour. RSC Adv 2017. [DOI: 10.1039/c6ra25023h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Drug-loaded nanofibrous scaffolds containing hydrophilic or hydrophobic drugs presented encapsulation efficiency, distribution and release dependent on copolymer composition.
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Affiliation(s)
| | - Pablo R. Cortez Tornello
- Research Institute of Materials Science and Technology
- INTEMA (UNMdP – CONICET)
- Mar del Plata
- Argentina
| | - Gustavo A. Abraham
- Research Institute of Materials Science and Technology
- INTEMA (UNMdP – CONICET)
- Mar del Plata
- Argentina
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147
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Qi JQ, Guo R, Wang Y, Liu XW, Chan HLW. Electric Field-Controlled Crystallizing CaCO3 Nanostructures from Solution. NANOSCALE RESEARCH LETTERS 2016; 11:120. [PMID: 26932759 PMCID: PMC4773370 DOI: 10.1186/s11671-016-1338-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 02/24/2016] [Indexed: 06/05/2023]
Abstract
The role of electric field is investigated in determining the structure, morphology, and crystallographic characteristics of CaCO3 nanostructures crystallized from solution. It is found that the lattice structure and crystalline morphology of CaCO3 can be tailed by the electric field applied to the solution during its crystallization. The calcite structure with cubic-like morphology can be obtained generally without electric field, and the vaterite structure with the morphology of nanorod is formed under the high electric field. The vaterite nanorods can be piled up to the petaliform layers. Both the nanorod and the petaliform layer can have mesocrystal structures which are piled up by much fine units of the rods with the size of several nanometers. Beautiful rose-like nanoflowers can be self-arranged by the petaliform layers. These structures can have potential application as carrier for medicine to involve into metabolism of living cell.
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Affiliation(s)
- Jian Quan Qi
- School of Materials Science and Natural resources, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, Hebei Province, People's Republic of China.
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
| | - Rui Guo
- School of Materials Science and Natural resources, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, Hebei Province, People's Republic of China.
| | - Yu Wang
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
| | - Xuan Wen Liu
- School of Materials Science and Natural resources, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, Hebei Province, People's Republic of China.
| | - Helen Lai Wah Chan
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.
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148
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Surface modification of electrospun fibres for biomedical applications: A focus on radical polymerization methods. Biomaterials 2016; 106:24-45. [DOI: 10.1016/j.biomaterials.2016.08.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 12/18/2022]
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149
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Aldana AA, Abraham GA. Current advances in electrospun gelatin-based scaffolds for tissue engineering applications. Int J Pharm 2016; 523:441-453. [PMID: 27640245 DOI: 10.1016/j.ijpharm.2016.09.044] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/02/2016] [Accepted: 09/13/2016] [Indexed: 12/11/2022]
Abstract
The development of biomimetic highly-porous scaffolds is essential for successful tissue engineering. Electrospun nanofibers are highly versatile platforms for a broad range of applications in different research areas. In the biomedical field, micro/nanoscale fibrous structures have gained great interest for wound dressings, drug delivery systems, soft and hard-tissue engineering scaffolds, enzyme immobilization, among other healthcare applications. In this mini-review, electrospun gelatin-based scaffolds for a variety of tissue engineering applications, such as bone, cartilage, skin, nerve, and ocular and vascular tissue engineering, are reviewed and discussed. Gelatin blends with natural or synthetic polymers exhibit physicochemical, biomechanical, and biocompatibility properties very attractive for scaffolding. Current advances and challenges on this research field are presented.
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Affiliation(s)
- Ana A Aldana
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales, INTEMA (UNMdP-CONICET), Av. Juan B. Justo 4302, B7608FDQ Mar del Plata, Argentina
| | - Gustavo A Abraham
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales, INTEMA (UNMdP-CONICET), Av. Juan B. Justo 4302, B7608FDQ Mar del Plata, Argentina.
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150
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Vijayavenkataraman S, Lu WF, Fuh JYH. 3D bioprinting of skin: a state-of-the-art review on modelling, materials, and processes. Biofabrication 2016; 8:032001. [DOI: 10.1088/1758-5090/8/3/032001] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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