51
|
Qin CC, Duan XP, Wang L, Zhang LH, Yu M, Dong RH, Yan X, He HW, Long YZ. Melt electrospinning of poly(lactic acid) and polycaprolactone microfibers by using a hand-operated Wimshurst generator. NANOSCALE 2015; 7:16611-16615. [PMID: 26419395 DOI: 10.1039/c5nr05367f] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A conventional melt electrospinning setup usually needs a large, heavy high-voltage power supply and cannot work without a plug (electricity supply). In this article, we report a new melt electrospinning setup based on a small hand-operated Wimshurst generator, which can avoid electrical interference between the high-voltage spinning system and the heating system, and make the setup very portable and safe. Poly(lactic acid) (PLA) and polycaprolactone (PCL) fibers with diameters of 15-45 μm were fabricated successfully by using this apparatus. Experimental parameters such as the rotational speed of the generator handle (a half turn to two turns per second) and the spinning distance (2-14 cm) were investigated. In addition, PLA and PCL fibers were directly melt-electrospun onto a pork liver, and the temperature and adhesiveness of the deposited fibers were studied. The results indicate that the apparatus and melt-electrospun polymer microfibers may be used in dressing for wound healing.
Collapse
Affiliation(s)
- Chong-Chong Qin
- College of Physics & Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao 266071, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
52
|
Jafari M, Paknejad Z, Rad MR, Motamedian SR, Eghbal MJ, Nadjmi N, Khojasteh A. Polymeric scaffolds in tissue engineering: a literature review. J Biomed Mater Res B Appl Biomater 2015; 105:431-459. [PMID: 26496456 DOI: 10.1002/jbm.b.33547] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 09/06/2015] [Accepted: 09/27/2015] [Indexed: 12/16/2022]
Abstract
The tissue engineering scaffold acts as an extracellular matrix that interacts to the cells prior to forming new tissues. The chemical and structural characteristics of scaffolds are major concerns in fabricating of ideal three-dimensional structure for tissue engineering applications. The polymer scaffolds used for tissue engineering should possess proper architecture and mechanical properties in addition to supporting cell adhesion, proliferation, and differentiation. Much research has been done on the topic of polymeric scaffold properties such as surface topographic features (roughness and hydrophilicity) and scaffold microstructures (pore size, porosity, pore interconnectivity, and pore and fiber architectures) that influence the cell-scaffold interactions. In this review, efforts were given to evaluate the effect of both chemical and structural characteristics of scaffolds on cell behaviors such as adhesion, proliferation, migration, and differentiation. This review would provide the fundamental information which would be beneficial for scaffold design in future. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 431-459, 2017.
Collapse
Affiliation(s)
- Maissa Jafari
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahrasadat Paknejad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Oral and Maxillofacial Surgery, University of Antwerp, Belgium, Antwerp, Belgium
| | - Saeed Reza Motamedian
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Jafar Eghbal
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasser Nadjmi
- Department of Oral and Maxillofacial Surgery, University of Antwerp, Belgium, Antwerp, Belgium
| | - Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
53
|
Zhang E, Zhu C, Yang J, Sun H, Zhang X, Li S, Wang Y, Sun L, Yao F. Electrospun PDLLA/PLGA composite membranes for potential application in guided tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 58:278-85. [PMID: 26478312 DOI: 10.1016/j.msec.2015.08.032] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 07/18/2015] [Accepted: 08/22/2015] [Indexed: 01/14/2023]
Abstract
With the aim to explore a membrane system with appropriate degradation rate and excellent cell-occlusiveness for guided tissue regeneration (GTR), a series of poly(D, L-lactic acid) (PDLLA)/poly(D, L-lactic-co-glycolic acid) (PLGA) (100/0, 70/30, 50/50, 30/70, 0/100, w/w) composite membranes were fabricated via electrospinning. The fabricated membranes were evaluated by morphological characterization, water contact angle measurement and tensile test. In vitro degradation was characterized in terms of the weight loss and the morphological change. Moreover, in vitro cytologic research revealed that PDLLA/PLGA composite membranes could efficiently inhibit the infiltration of 293 T cells. Finally, subcutaneous implant test on SD rat in vivo showed that PDLLA/PLGA (70/30, 50/50) composite membranes could function well as a physical barrier to prevent cellular infiltration within 13 weeks. These results suggested that electrospun PDLLA/PLGA (50/50) composite membranes could serve as a promising barrier membrane for guided tissue regeneration due to suitable biodegradability, preferable mechanical properties and excellent cellular shielding effects.
Collapse
Affiliation(s)
- Ershuai Zhang
- School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Chuanshun Zhu
- School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Jun Yang
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China
| | - Hong Sun
- Department of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063000, China
| | - Xiaomin Zhang
- School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Tianjin 300072, China
| | - Suhua Li
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin 300071, China
| | - Yonglan Wang
- Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Lu Sun
- Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Fanglian Yao
- School of Chemical Engineering and Technology, Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Tianjin 300072, China.
| |
Collapse
|
54
|
Saeed M, Mirzadeh H, Zandi M, Irani S, Barzin J. Rationalization of specific structure formation in electrospinning process: Study on nano-fibrous PCL- and PLGA-based scaffolds. J Biomed Mater Res A 2015; 103:3927-39. [DOI: 10.1002/jbm.a.35520] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 05/20/2015] [Accepted: 06/03/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Mahdi Saeed
- Department of Biomaterials; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Hamid Mirzadeh
- Department of Polymer Engineering; Amirkabir University of Technology; Tehran Iran
| | - Mojgan Zandi
- Department of Biomaterials; Iran Polymer and Petrochemical Institute; Tehran Iran
| | - Shiva Irani
- Department of Biology School of Basic Sciences; Science and Research Branch Islamic Azad University; Tehran Iran
| | - Jalal Barzin
- Department of Biomaterials; Iran Polymer and Petrochemical Institute; Tehran Iran
| |
Collapse
|
55
|
Norouzi M, Boroujeni SM, Omidvarkordshouli N, Soleimani M. Advances in skin regeneration: application of electrospun scaffolds. Adv Healthc Mater 2015; 4:1114-33. [PMID: 25721694 DOI: 10.1002/adhm.201500001] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Indexed: 12/28/2022]
Abstract
The paucity of cellular and molecular signals essential for normal wound healing makes severe dermatological ulcers stubborn to heal. The novel strategies of skin regenerative treatments are focused on the development of biologically responsive scaffolds accompanied by cells and multiple biomolecules resembling structural and biochemical cues of the natural extracellular matrix (ECM). Electrospun nanofibrous scaffolds provide similar architecture to the ECM leading to enhancement of cell adhesion, proliferation, migration and neo tissue formation. This Review surveys the application of biocompatible natural, synthetic and composite polymers to fabricate electrospun scaffolds as skin substitutes and wound dressings. Furthermore, the application of biomolecules and therapeutic agents in the nanofibrous scaffolds viz growth factors, genes, antibiotics, silver nanoparticles, and natural medicines with the aim of ameliorating cellular behavior, wound healing, and skin regeneration are discussed.
Collapse
Affiliation(s)
- Mohammad Norouzi
- Department of Nanotechnology and Tissue Engineering; Stem Cell Technology Research Center; Tehran Iran
| | | | | | - Masoud Soleimani
- Department of Hematology; Faculty of Medical Sciences; Tarbiat Modares University; Tehran Iran
| |
Collapse
|
56
|
Muerza-Cascante ML, Haylock D, Hutmacher DW, Dalton PD. Melt Electrospinning and Its Technologization in Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:187-202. [DOI: 10.1089/ten.teb.2014.0347] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- M. Lourdes Muerza-Cascante
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - David Haylock
- The Commonwealth Scientific Industrial Research Organisation, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Dietmar W. Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Institute for Advanced Study, Technical University Munich, Garching, Germany
- George W Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia
| | - Paul D. Dalton
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Department of Functional Materials in Medicine and Dentistry, University of Würzburg, Würzburg, Germany
| |
Collapse
|
57
|
Nga NK, Hoai TT, Viet PH. Biomimetic scaffolds based on hydroxyapatite nanorod/poly(D,L) lactic acid with their corresponding apatite-forming capability and biocompatibility for bone-tissue engineering. Colloids Surf B Biointerfaces 2015; 128:506-514. [PMID: 25791418 DOI: 10.1016/j.colsurfb.2015.03.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 02/27/2015] [Accepted: 03/01/2015] [Indexed: 11/18/2022]
Abstract
This study presents a facile synthesis of biomimetic hydroxyapatite nanorod/poly(D,L) lactic acid (HAp/PDLLA) scaffolds with the use of solvent casting combined with a salt-leaching technique for bone-tissue engineering. Field emission scanning electron microscopy, Fourier transform infrared spectroscopy, and energy-dispersive X-ray spectroscopy were used to observe the morphologies, pore structures of synthesized scaffolds, interactions between hydroxyapatite nanorods and poly(D,L) lactic acid, as well as the compositions of the scaffolds, respectively. Porosity of the scaffolds was determined using the liquid substitution method. Moreover, the apatite-forming capability of the scaffolds was evaluated through simulated body fluid (SBF) incubation tests, whereas the viability, attachment, and distribution of human osteoblast cells (MG 63 cell line) on the scaffolds were determined through alamarBlue assay and confocal laser microscopy after nuclear staining with 4',6-diamidino-2-phenylindole and actin filaments of a cytoskeleton with Oregon Green 488 phalloidin. Results showed that hydroxyapatite nanorod/poly(D,L) lactic acid scaffolds that mimic the structure of natural bone were successfully produced. These scaffolds possessed macropore networks with high porosity (80-84%) and mean pore sizes ranging 117-183 μm. These scaffolds demonstrated excellent apatite-forming capabilities. The rapid formation of bone-like apatites with flower-like morphology was observed after 7 days of incubation in SBFs. The scaffolds that had a high percentage (30 wt.%) of hydroxyapatite demonstrated better cell adhesion, proliferation, and distribution than those with low percentages of hydroxyapatite as the days of culture increased. This work presented an efficient route for developing biomimetic composite scaffolds, which have potential applications in bone-tissue engineering.
Collapse
Affiliation(s)
- Nguyen Kim Nga
- School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Viet Nam.
| | - Tran Thanh Hoai
- School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - Pham Hung Viet
- Research Center for Environmental Technology and Sustainable Development, Hanoi University of Science, 334 Nguyen Trai Street, Hanoi, Viet Nam
| |
Collapse
|
58
|
Khorshidi S, Solouk A, Mirzadeh H, Mazinani S, Lagaron JM, Sharifi S, Ramakrishna S. A review of key challenges of electrospun scaffolds for tissue-engineering applications. J Tissue Eng Regen Med 2015; 10:715-38. [DOI: 10.1002/term.1978] [Citation(s) in RCA: 323] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 09/09/2014] [Accepted: 11/10/2014] [Indexed: 12/26/2022]
Affiliation(s)
- Sajedeh Khorshidi
- Biomedical Engineering Faculty; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Atefeh Solouk
- Biomedical Engineering Faculty; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Hamid Mirzadeh
- Polymer Engineering Faculty; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Saeedeh Mazinani
- Amirkabir Nanotechnology Research Institute (ANTRI); Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Jose M. Lagaron
- Novel Materials and Nanotechnology Group; IATA-CSIC; Avda Agustı'n Escardino 7 46980 Burjassot Spain
| | - Shahriar Sharifi
- Department of Biomaterials Science and Technology; University of Twente; Enschede The Netherlands
| | - Seeram Ramakrishna
- Nanoscience and Nanotechnology Initiative; National University of Singapore; Singapore
| |
Collapse
|
59
|
Shin YM, La WG, Lee MS, Yang HS, Lim YM. Extracellular matrix-inspired BMP-2-delivering biodegradable fibrous particles for bone tissue engineering. J Mater Chem B 2015; 3:8375-8382. [DOI: 10.1039/c5tb01310k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A heparin conjugated fibrous particle resembling the structure of an extracellular matrix was developed. The BMP-2 loaded particles promoted osteogenic differentiation and healing of a bone defect, in vitro and in vivo.
Collapse
Affiliation(s)
- Young Min Shin
- Research Division for Industry and Environment
- Advanced Radiation Technology Institute
- Korea Atomic Energy Research Institute
- 580-185 Republic of Korea
| | - Wan-Geun La
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan 330-714
- Republic of Korea
| | - Min Suk Lee
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan 330-714
- Republic of Korea
| | - Hee Seok Yang
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
- Cheonan 330-714
- Republic of Korea
| | - Youn-Mook Lim
- Research Division for Industry and Environment
- Advanced Radiation Technology Institute
- Korea Atomic Energy Research Institute
- 580-185 Republic of Korea
| |
Collapse
|
60
|
Electrospinning of Bioinspired Polymer Scaffolds. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:33-53. [DOI: 10.1007/978-3-319-22345-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
61
|
Yüksel E, Karakeçili A. Antibacterial activity on electrospun poly(lactide-co-glycolide) based membranes via Magainin II grafting. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:510-8. [PMID: 25491858 DOI: 10.1016/j.msec.2014.10.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 09/12/2014] [Accepted: 10/02/2014] [Indexed: 11/30/2022]
Abstract
An antimicrobial peptide (AMP), Magainin II (Mag II) was covalently immobilized on poly(lactide-co-glycolide) (PLGA) and PLGA/gelatin electrospun fibrous membranes. The surface immobilization was characterized by X-ray Photoelectron Spectroscopy (XPS). Scanning Electron Microscopy (SEM) and Atomic Force Microscopy studies showed that the surface morphology of the fibers at micron scale was not affected by the immobilization process. The antibacterial activity of the bound Mag II was tested against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Bacterial adhesion tests, SEM and confocal analyses revealed that the attachment and survival of bacteria were inhibited on Mag II functionalized membranes. AMP immobilization strategy was introduced as a new perspective for the modulation of antibacterial properties on PLGA based materials prepared by electrospinning.
Collapse
Affiliation(s)
- Emre Yüksel
- Ankara University, Faculty of Engineering, Chemical Engineering Department, 06100 Ankara, Turkey
| | - Ayşe Karakeçili
- Ankara University, Faculty of Engineering, Chemical Engineering Department, 06100 Ankara, Turkey.
| |
Collapse
|
62
|
Campos DM, Gritsch K, Salles V, Attik GN, Grosgogeat B. Surface Entrapment of Fibronectin on Electrospun PLGA Scaffolds for Periodontal Tissue Engineering. Biores Open Access 2014; 3:117-26. [PMID: 24940563 PMCID: PMC4048976 DOI: 10.1089/biores.2014.0015] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nowadays, the challenge in the tissue engineering field consists in the development of biomaterials designed to regenerate ad integrum damaged tissues. Despite the current use of bioresorbable polyesters such as poly(l-lactide) (PLA), poly(d,l-lactide-co-glycolide) (PLGA), and poly-ɛ-caprolactone in soft tissue regeneration researches, their hydrophobic properties negatively influence the cell adhesion. Here, to overcome it, we have developed a fibronectin (FN)-functionalized electrospun PLGA scaffold for periodontal ligament regeneration. Functionalization of electrospun PLGA scaffolds was performed by alkaline hydrolysis (0.1 or 0.01 M NaOH). Then, hydrolyzed scaffolds were coated by simple deposition of an FN layer (10 μg/mL). FN coating was evidenced by X-ray photoelectron analysis. A decrease of contact angle and greater cell adhesion to hydrolyzed, FN-coated PLGA scaffolds were noticed. Suitable degradation behavior without pH variations was observed for all samples up to 28 days. All treated materials presented strong shrinkage, fiber orientation loss, and collapsed fibers. However, functionalization process using 0.01 M NaOH concentration resulted in unchanged scaffold porosity, preserved chemical composition, and similar mechanical properties compared with untreated scaffolds. The proposed simplified method to functionalize electrospun PLGA fibers is an efficient route to make polyester scaffolds more biocompatible and shows potential for tissue engineering.
Collapse
Affiliation(s)
- Doris M Campos
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France . ; UFR d'odontologie, Université Lyon 1 , Villeurbanne, France
| | - Kerstin Gritsch
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France . ; UFR d'odontologie, Université Lyon 1 , Villeurbanne, France . ; Centre de Soins, d'Enseignement et de Recherche Dentaires (Département de Parodontologie), Université Lyon 1 , Villeurbanne, France
| | - Vincent Salles
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France
| | - Ghania N Attik
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France
| | - Brigitte Grosgogeat
- Laboratoire des Multimatériaux et Interfaces CNRS UMR 5615, Université Lyon 1 , Villeurbanne, France . ; UFR d'odontologie, Université Lyon 1 , Villeurbanne, France . ; Centre de Soins, d'Enseignement et de Recherche Dentaires (Département de Santé Publique), Université Lyon 1 , Villeurbanne, France
| |
Collapse
|
63
|
Sun B, Long Y, Zhang H, Li M, Duvail J, Jiang X, Yin H. Advances in three-dimensional nanofibrous macrostructures via electrospinning. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.06.002] [Citation(s) in RCA: 358] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
64
|
Balogh A, Drávavölgyi G, Faragó K, Farkas A, Vigh T, Sóti PL, Wagner I, Madarász J, Pataki H, Marosi G, Nagy ZK. Plasticized Drug‐Loaded Melt Electrospun Polymer Mats: Characterization, Thermal Degradation, and Release Kinetics. J Pharm Sci 2014; 103:1278-87. [DOI: 10.1002/jps.23904] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/28/2014] [Accepted: 01/29/2014] [Indexed: 11/06/2022]
|
65
|
Puppi D, Zhang X, Yang L, Chiellini F, Sun X, Chiellini E. Nano/microfibrous polymeric constructs loaded with bioactive agents and designed for tissue engineering applications: a review. J Biomed Mater Res B Appl Biomater 2014; 102:1562-79. [PMID: 24678016 DOI: 10.1002/jbm.b.33144] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/29/2014] [Accepted: 03/06/2014] [Indexed: 01/04/2023]
Abstract
Nano/microfibrous polymeric constructs present various inherent advantages, such as highly porous architecture and high surface to volume ratio, making them attractive for tissue engineering purposes. Electrospinning is the most preferred technique for the fabrication of polymeric nanofibrous assemblies that can mimic the physical functions of native extracellular matrix greatly favoring cells attachment and thus influencing their morphology and activities. Different approaches have been developed to apply polymeric microfiber fabrication techniques (e.g. wet-spinning) for the obtainment of scaffolds with a three-dimensional network of micropores suitable for effective cells migration. Progress in additive manufacturing technology has led to the development of complex scaffold's shapes and microfibrous structures with a high degree of automation, good accuracy and reproducibility. Various loading methods, such as direct blending, coaxial electrospinning and microparticles incorporation, are enabling to develop customized strategies for the biofunctionalization of nano/microfibrous scaffolds with a tailored kinetics of release of different bioactive agents, ranging from small molecules, such as antibiotics, to protein drugs, such as growth factors, and even cells. Recent activities on the combination of different processing techniques and loading methods for the obtainment of biofunctionalized polymeric constructs with a complex multiscale structure open new possibilities for the development of biomimetic scaffolds endowed with a hierarchical architecture and a sophisticated release kinetics of different bioactive agents. This review is aimed at summarizing current advances in technologies and methods for manufacturing nano/microfibrous polymeric constructs suitable as tissue engineering scaffolds, and for their combination with different bioactive agents to promote tissue regeneration and therapeutic effects.
Collapse
Affiliation(s)
- Dario Puppi
- Department of Chemistry and Industrial Chemistry, Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), University of Pisa, 56010, San Piero a Grado (Pi), Italy
| | | | | | | | | | | |
Collapse
|
66
|
Haider A, Gupta KC, Kang IK. PLGA/nHA hybrid nanofiber scaffold as a nanocargo carrier of insulin for accelerating bone tissue regeneration. NANOSCALE RESEARCH LETTERS 2014; 9:314. [PMID: 25024679 PMCID: PMC4082289 DOI: 10.1186/1556-276x-9-314] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 06/19/2014] [Indexed: 05/22/2023]
Abstract
The development of tissue engineering in the field of orthopedic surgery is booming. Two fields of research in particular have emerged: approaches for tailoring the surface properties of implantable materials with osteoinductive factors as well as evaluation of the response of osteogenic cells to these fabricated implanted materials (hybrid material). In the present study, we chemically grafted insulin onto the surface of hydroxyapatite nanorods (nHA). The insulin-grafted nHAs (nHA-I) were dispersed into poly(lactide-co-glycolide) (PLGA) polymer solution, which was electrospun to prepare PLGA/nHA-I composite nanofiber scaffolds. The morphology of the electrospun nanofiber scaffolds was assessed by field emission scanning electron microscopy (FESEM). After extensive characterization of the PLGA/nHA-I and PLGA/nHA composite nanofiber scaffolds by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectrometry (EDS), and transmission electron microscopy (TEM), the PLGA/nHA-I and PLGA/nHA (used as control) composite nanofiber scaffolds were subjected to cell studies. The results obtained from cell adhesion, alizarin red staining, and Von Kossa assay suggested that the PLGA/nHA-I composite nanofiber scaffold has enhanced osteoblastic cell growth, as more cells were proliferated and differentiated. The fact that insulin enhanced osteoblastic cell proliferation will open new possibilities for the development of artificial scaffolds for bone tissue regeneration.
Collapse
Affiliation(s)
- Adnan Haider
- Department of Polymer Science and Engineering, School of Applied Chemical Engineering Kyungpook, National University, Daegu 702-701, South Korea
| | - Kailash Chandra Gupta
- Department of Polymer Science and Engineering, School of Applied Chemical Engineering Kyungpook, National University, Daegu 702-701, South Korea
- Polymer Research Laboratory, Department of Chemistry, I.I.T., Roorkee 247667, India
| | - Inn-Kyu Kang
- Department of Polymer Science and Engineering, School of Applied Chemical Engineering Kyungpook, National University, Daegu 702-701, South Korea
| |
Collapse
|
67
|
Fabrication of microfibrous and nano-/microfibrous scaffolds: melt and hybrid electrospinning and surface modification of poly(L-lactic acid) with plasticizer. BIOMED RESEARCH INTERNATIONAL 2013; 2013:309048. [PMID: 24381937 PMCID: PMC3870109 DOI: 10.1155/2013/309048] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 11/02/2013] [Indexed: 11/18/2022]
Abstract
Biodegradable poly(L-lactic acid) (PLA) fibrous scaffolds were prepared by electrospinning from a PLA melt containing poly(ethylene glycol) (PEG) as a plasticizer to obtain thinner fibers. The effects of PEG on the melt electrospinning of PLA were examined in terms of the melt viscosity and fiber diameter. Among the parameters, the content of PEG had a more significant effect on the average fiber diameter and its distribution than those of the spinning temperature. Furthermore, nano-/microfibrous silk fibroin (SF)/PLA and PLA/PLA composite scaffolds were fabricated by hybrid electrospinning, which involved a combination of solution electrospinning and melt electrospinning. The SF/PLA (20/80) scaffolds consisted of a randomly oriented structure of PLA microfibers (average fiber diameter = 8.9 µm) and SF nanofibers (average fiber diameter = 820 nm). The PLA nano-/microfiber (20/80) scaffolds were found to have similar pore parameters to the PLA microfiber scaffolds. The PLA scaffolds were treated with plasma in the presence of either oxygen or ammonia gas to modify the surface of the fibers. This approach of controlling the surface properties and diameter of fibers could be useful in the design and tailoring of novel scaffolds for tissue engineering.
Collapse
|
68
|
Braghirolli DI, Steffens D, Quintiliano K, Acasigua GAX, Gamba D, Fleck RA, Petzhold CL, Pranke P. The effect of sterilization methods on electronspun poly(lactide-co-glycolide) and subsequent adhesion efficiency of mesenchymal stem cells. J Biomed Mater Res B Appl Biomater 2013; 102:700-8. [PMID: 24259451 DOI: 10.1002/jbm.b.33049] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 08/06/2013] [Accepted: 09/10/2013] [Indexed: 12/24/2022]
Abstract
The sterilization of scaffolds is an essential step for tissue engineering in vitro and, mainly, clinical biomaterial use. However, this process can cause changes in the structure and surface of the scaffolds. Therefore, the objective of this study was to investigate the effect of sterilization by ethanol, ultraviolet radiation (UVR) or antimicrobial solution (AMS) on poly(lactide-co-glycolide) (PLGA) scaffolds produced by the electrospinning technique. The properties of nanofibers and the cellular adhesion of mesenchymal stem cells to the scaffolds were analyzed after the treatments. All methods generated sterile scaffolds but showed some kind of damage to the scaffolds. Ethanol and AMS caused changes in the morphology and scaffold dimensions, which were not observed when using the UVR method. However, UVR caused a greater reduction in polymeric molecular weight, which increased proportionally with exposure time of treatment. Nanofibers sterilized with AMS for 1 h and 2 h showed greater cellular adhesion than the other methods, demonstrating their potential as a method for sterilizing PLGA nanofibers.
Collapse
Affiliation(s)
- Daikelly Iglesias Braghirolli
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, 90610-000, Brazil; Post Graduate Programme in Material Science, Federal University of Rio Grande do Sul, Porto Alegre, 91501-970, Brazil
| | | | | | | | | | | | | | | |
Collapse
|
69
|
Chrzanowska O, Struszczyk MH, Krucinska I. Small diameter tubular structure design using solvent-free textile techniques. J Appl Polym Sci 2013. [DOI: 10.1002/app.40147] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Olga Chrzanowska
- Centre of Advanced Technologies of Human-Friendly Textiles “Pro Humano Tex,” Department of Material and Commodity Sciences and Textile Metrology, Faculty of Material Technologies and Textile Design; Lodz University of Technology; 90-924 Lodz Poland
| | - Marcin Henryk Struszczyk
- Centre of Advanced Technologies of Human-Friendly Textiles “Pro Humano Tex,” Department of Material and Commodity Sciences and Textile Metrology, Faculty of Material Technologies and Textile Design; Lodz University of Technology; 90-924 Lodz Poland
| | - Izabella Krucinska
- Centre of Advanced Technologies of Human-Friendly Textiles “Pro Humano Tex,” Department of Material and Commodity Sciences and Textile Metrology, Faculty of Material Technologies and Textile Design; Lodz University of Technology; 90-924 Lodz Poland
| |
Collapse
|
70
|
Li TT, Ebert K, Vogel J, Groth T. Comparative studies on osteogenic potential of micro- and nanofibre scaffolds prepared by electrospinning of poly(ε-caprolactone). Prog Biomater 2013; 2:13. [PMID: 29470684 PMCID: PMC5151106 DOI: 10.1186/2194-0517-2-13] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 11/03/2013] [Indexed: 12/16/2022] Open
Abstract
The biocompatibility and osteogenic potential of four fibrous scaffolds prepared by electrospinning of poly(ε-caprolactone) (PCL) was studied with MG-63 osteoblast cells. Two different kinds of scaffolds were obtained by adjustment of spinning conditions, which were characterized as nano- or microfibrous. In addition of one nanofibrous, scaffold was made more hydrophilic by blending PCL with Pluronics F 68. Scaffolds were characterized by scanning electron microscopy and water contact angle measurements. Morphology and growth of MG63 cells seeded on the different scaffolds were investigated by confocal laser scanning microscopy after vital staining with fluorescein diacetate and by colorimetric assays. It was found that scaffolds composed of microfibres stipulated better growth conditions for osteoblasts probably by providing a real three-dimensional culture substratum, while nanofibre scaffolds restricted cell growth predominantly to surface regions. Osteogenic activity of cells was determined by alkaline phosphatase (ALP) and o-cresolphthalein complexone assay. It was observed that osteogenic activity of cells cultured in microfibre scaffolds was significantly higher than in nanofibre scaffolds regarding ALP activity. Overall, one can conclude that nanofibre scaffold provides better conditions for initial attachment of cells but does not provide advantages in terms of scaffold colonization and support of osteogenic activity compared to scaffolds prepared from microfibres.
Collapse
Affiliation(s)
- Ting-Ting Li
- Department Pharmaceutics and Biopharmaceutics, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Heinrich-Damerow-Strasse 4, Halle (Saale), 06120 Germany
| | - Katrin Ebert
- GKSS Research Centre Geesthacht GmbH, Institute of Polymer Research, Max-Planck-Str.1, Geesthacht, 21502 Germany
| | - Jürgen Vogel
- Department Pharmaceutics and Biopharmaceutics, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Heinrich-Damerow-Strasse 4, Halle (Saale), 06120 Germany
| | - Thomas Groth
- Department Pharmaceutics and Biopharmaceutics, Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Heinrich-Damerow-Strasse 4, Halle (Saale), 06120 Germany
| |
Collapse
|
71
|
Hou S, Zhao L, Shen Q, Yu J, Ng C, Kong X, Wu D, Song M, Shi X, Xu X, OuYang WH, He R, Zhao XZ, Lee T, Brunicardi FC, Garcia MA, Ribas A, Lo RS, Tseng HR. Polymer nanofiber-embedded microchips for detection, isolation, and molecular analysis of single circulating melanoma cells. Angew Chem Int Ed Engl 2013; 52:3379-83. [PMID: 23436302 PMCID: PMC3807678 DOI: 10.1002/anie.201208452] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 12/20/2012] [Indexed: 12/19/2022]
Affiliation(s)
- Shuang Hou
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA, Web: http://www.tseng-lab.com
| | - Libo Zhao
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Qinglin Shen
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
- Department of Applied Physics and Department of Oncology Surgery,
Wuhan University, Wuhan, PRC
| | - Juehua Yu
- Department of Surgery, University of California, Los Angeles
| | - Charles Ng
- Division of Hematology and Oncology, Department of Medicine,
Department of Surgery, and Department of Molecular and Medical Pharmacology,
University of California, Los Angeles
| | - Xiangju Kong
- Division of Dermatology, Department of Medicine, University of
California, Los Angeles
| | - Dongxia Wu
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Min Song
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Xiaohong Shi
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | - Xiaochun Xu
- CytoLumina Technologies Corp., 21038 Commerce Point Dr., Walnut,
CA 91789, USA
| | - Wei-Han OuYang
- CytoLumina Technologies Corp., 21038 Commerce Point Dr., Walnut,
CA 91789, USA
| | - Rongxian He
- Department of Applied Physics and Department of Oncology Surgery,
Wuhan University, Wuhan, PRC
| | - Xing-Zhong Zhao
- Department of Applied Physics and Department of Oncology Surgery,
Wuhan University, Wuhan, PRC
| | - Tom Lee
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| | | | - Mitch André Garcia
- CytoLumina Technologies Corp., 21038 Commerce Point Dr., Walnut,
CA 91789, USA
| | - Antoni Ribas
- Division of Hematology and Oncology, Department of Medicine,
Department of Surgery, and Department of Molecular and Medical Pharmacology,
University of California, Los Angeles
| | - Roger S. Lo
- Division of Dermatology, Department of Medicine, University of
California, Los Angeles
| | - Hsian-Rong Tseng
- Department of Molecular and Medical Pharmacology, Crump Institute
for Molecular Imaging (CIMI), California NanoSystems Institute (CNSI),
University of California, Los Angeles, 570 Westwood Plaza, Building 114, Los
Angeles, CA 90095-1770, USA
| |
Collapse
|
72
|
Farrugia BL, Brown TD, Upton Z, Hutmacher DW, Dalton PD, Dargaville TR. Dermal fibroblast infiltration of poly(ε-caprolactone) scaffolds fabricated by melt electrospinning in a direct writing mode. Biofabrication 2013; 5:025001. [DOI: 10.1088/1758-5082/5/2/025001] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
73
|
Hou S, Zhao L, Shen Q, Yu J, Ng C, Kong X, Wu D, Song M, Shi X, Xu X, OuYang WH, He R, Zhao XZ, Lee T, Brunicardi FC, Garcia MA, Ribas A, Lo RS, Tseng HR. Polymer Nanofiber-Embedded Microchips for Detection, Isolation, and Molecular Analysis of Single Circulating Melanoma Cells. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208452] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
74
|
Nagy ZK, Balogh A, Drávavölgyi G, Ferguson J, Pataki H, Vajna B, Marosi G. Solvent-Free Melt Electrospinning for Preparation of Fast Dissolving Drug Delivery System and Comparison with Solvent-Based Electrospun and Melt Extruded Systems. J Pharm Sci 2013; 102:508-17. [DOI: 10.1002/jps.23374] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/18/2012] [Accepted: 10/24/2012] [Indexed: 11/10/2022]
|
75
|
Levorson EJ, Raman Sreerekha P, Chennazhi KP, Kasper FK, Nair SV, Mikos AG. Fabrication and characterization of multiscale electrospun scaffolds for cartilage regeneration. Biomed Mater 2013; 8:014103. [PMID: 23353096 DOI: 10.1088/1748-6041/8/1/014103] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Recently, scaffolds for tissue regeneration purposes have been observed to utilize nanoscale features in an effort to reap the cellular benefits of scaffold features resembling extracellular matrix (ECM) components. However, one complication surrounding electrospun nanofibers is limited cellular infiltration. One method to ameliorate this negative effect is by incorporating nanofibers into microfibrous scaffolds. This study shows that it is feasible to fabricate electrospun scaffolds containing two differently scaled fibers interspersed evenly throughout the entire construct as well as scaffolds containing fibers composed of two discrete materials, specifically fibrin and poly(ε-caprolactone). In order to accomplish this, multiscale fibrous scaffolds of different compositions were generated using a dual extrusion electrospinning setup with a rotating mandrel. These scaffolds were then characterized for fiber diameter, porosity and pore size and seeded with human mesenchymal stem cells to assess the influence of scaffold architecture and composition on cellular responses as determined by cellularity, histology and glycosaminoglycan (GAG) content. Analysis revealed that nanofibers within a microfiber mesh function to maintain scaffold cellularity under serum-free conditions as well as aid the deposition of GAGs. This supports the hypothesis that scaffolds with constituents more closely resembling native ECM components may be beneficial for cartilage regeneration.
Collapse
Affiliation(s)
- Erica J Levorson
- Department of Bioengineering, Rice University, MS-142, PO Box 1892, Houston, TX 77251-1892, USA
| | | | | | | | | | | |
Collapse
|
76
|
|
77
|
Dalton PD, Vaquette C, Farrugia BL, Dargaville TR, Brown TD, Hutmacher DW. Electrospinning and additive manufacturing: converging technologies. Biomater Sci 2013; 1:171-185. [DOI: 10.1039/c2bm00039c] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
78
|
Zander NE, Orlicki JA, Rawlett AM, Beebe TP. Electrospun polycaprolactone scaffolds with tailored porosity using two approaches for enhanced cellular infiltration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:179-187. [PMID: 23053801 DOI: 10.1007/s10856-012-4771-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 09/17/2012] [Indexed: 06/01/2023]
Abstract
The impact of mat porosity of polycaprolactone (PCL) electrospun fibers on the infiltration of neuron-like PC12 cells was evaluated using two different approaches. In the first method, bi-component aligned fiber mats were fabricated via the co-electrospinning of PCL with polyethylene oxide (PEO). Variation of the PEO flow rate, followed by selective removal of PEO from the PCL/PEO mesh, allowed for control of the porosity of the resulting scaffold. In the second method, aligned fiber mats were fabricated from various concentrations of PCL solutions to generate fibers with diameters between 0.13 ± 0.06 and 9.10 ± 4.1 μm. Of the approaches examined, the variation of PCL fiber diameter was found to be the better method for increasing the infiltration of PC12 cells, with the optimal infiltration into the ca. 1.5-mm-thick meshes observed for the mats with the largest fiber diameters, and hence largest pore sizes.
Collapse
Affiliation(s)
- Nicole E Zander
- US Army Research Laboratory, Weapons and Materials Research Directorate, Aberdeen Proving Ground, MD 21005, USA.
| | | | | | | |
Collapse
|
79
|
Vaquette C, Cooper-White J. A simple method for fabricating 3-D multilayered composite scaffolds. Acta Biomater 2013; 9:4599-608. [PMID: 22902817 DOI: 10.1016/j.actbio.2012.08.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 08/04/2012] [Accepted: 08/09/2012] [Indexed: 10/28/2022]
Abstract
One limitation of electrospinning stems from the charge build-up that occurs during processing, preventing further fibre deposition and limiting the scaffold overall thickness and hence their end-use in tissue engineering applications targeting large tissue defect repair. To overcome this, we have developed a technique in which thermally induced phase separation (TIPS) and electrospinning are combined. Thick three-dimensional, multilayered composite scaffolds were produced by simply stacking individual polycaprolactone (PCL) microfibrous electrospun discs into a cylindrical holder that was filled with a 3% poly(lactic-co-glycolic acid) (PLGA) solution in dimethylsulfoxide (a good solvent for PLGA but a poor one for PCL). The construct was quenched in liquid nitrogen and the solvent removed by leaching out in cold water. This technique enables the fabrication of scaffolds composed principally of electrospun membranes that have no limit to their thickness. The mechanical properties of these scaffolds were assessed under both quasi-static and dynamic conditions. The multilayered composite scaffolds had similar compressive properties to 5% PCL scaffolds fabricated solely by the TIPS methodology. However, tensile tests demonstrated that the multilayered construct outperformed a scaffold made purely by TIPS, highlighting the contribution of the electrospun component of the composite scaffold to enhancing the overall mechanical property slate. Cell studies revealed cell infiltration principally from the scaffold edges under static seeding conditions. This fabrication methodology permits the rapid construction of thick, strong scaffolds from a range of biodegradable polymers often used in tissue engineering, and will be particularly useful when large dimension electrospun scaffolds are required.
Collapse
|
80
|
Mazalevska O, Struszczyk MH, Krucinska I. Design of vascular prostheses by melt electrospinning-structural characterizations. J Appl Polym Sci 2012. [DOI: 10.1002/app.38818] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
81
|
Zhang H, Lou S, Williams GR, Branford-White C, Nie H, Quan J, Zhu LM. A systematic study of captopril-loaded polyester fiber mats prepared by electrospinning. Int J Pharm 2012; 439:100-8. [DOI: 10.1016/j.ijpharm.2012.09.055] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 09/26/2012] [Accepted: 09/29/2012] [Indexed: 10/27/2022]
|
82
|
|
83
|
Zhang Z, Hu J, Ma PX. Nanofiber-based delivery of bioactive agents and stem cells to bone sites. Adv Drug Deliv Rev 2012; 64:1129-41. [PMID: 22579758 DOI: 10.1016/j.addr.2012.04.008] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 04/23/2012] [Accepted: 04/25/2012] [Indexed: 01/14/2023]
Abstract
Biodegradable nanofibers are important scaffolding materials for bone regeneration. In this paper, the basic concepts and recent advances of self-assembly, electrospinning and thermally induced phase separation techniques that are widely used to generate nanofibrous scaffolds are reviewed. In addition, surface functionalization and bioactive factor delivery within these nanofibrous scaffolds to enhance bone regeneration are also discussed. Moreover, recent progresses in applying these nanofiber-based scaffolds to deliver stem cells for bone regeneration are presented. Along with the significant advances, challenges and obstacles in the field as well as the future perspective are discussed.
Collapse
|
84
|
Nakano A, Miki N, Hishida K, Hotta A. Solution parameters for the fabrication of thinner silicone fibers by electrospinning. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 86:011801. [PMID: 23005442 DOI: 10.1103/physreve.86.011801] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Indexed: 06/01/2023]
Abstract
Silicone fibers were synthesized by electrospinning, where 17 solvents with different chemical properties (boiling point, conductivity, viscosity, dielectric constant, and solubility parameter) were used to dissolve the silicone polymer for the formation of fibers through electrospinning. Previous reports on the miniaturization of fibers of polymers dissolved in a solvent suggested that the low viscosity and the high conductivity of the polymer solution were the key parameters to form thinner fibers when using a single solvent. Here we have found a powerful way to search for good solvents to reduce the fiber diameters as well as to dissolve the polymers. By considering different types of solvents, it was found that the solubility parameters conclusively determined the smallest fiber diameters of the silicone polymers. The solubility parameter of the silicone polymer should be lower than those of the solvents to make thinner fibers. The results have revealed the strong relationship between the diameters of the fibers and the solubility parameters of the solvents, and they indicate that the solubility parameter could be a good indicative parameter in selecting solvents during the fabrication of thinner fibers by electrospinning, especially for siloxane polymers.
Collapse
Affiliation(s)
- Atsushi Nakano
- Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | | | | | | |
Collapse
|
85
|
Pati F, Adhikari B, Dhara S. Collagen Intermingled Chitosan-Tripolyphosphate Nano/Micro Fibrous Scaffolds for Tissue-Engineering Application. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:1923-38. [DOI: 10.1163/092050611x599319] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Falguni Pati
- a School of Medical Science and Technology, Indian Institute of Technology , Kharagpur , 721302 , India
| | - Basudam Adhikari
- b Materials Science Centre, Indian Institute of Technology , Kharagpur , 721302 , India
| | - Santanu Dhara
- a School of Medical Science and Technology, Indian Institute of Technology , Kharagpur , 721302 , India
| |
Collapse
|
86
|
Park JS, Choi JB, Jo SY, Lim YM, Gwon HJ, Khil MS, Nho YC. Characterization and structure analysis of PLGA/collagen nanofibrous membranes by electrospinning. J Appl Polym Sci 2012. [DOI: 10.1002/app.36833] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
87
|
Rattanakit P, Moulton SE, Santiago KS, Liawruangrath S, Wallace GG. Extrusion printed polymer structures: a facile and versatile approach to tailored drug delivery platforms. Int J Pharm 2011; 422:254-63. [PMID: 22101281 DOI: 10.1016/j.ijpharm.2011.11.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 11/01/2011] [Accepted: 11/03/2011] [Indexed: 12/31/2022]
Abstract
A novel extrusion printing system was used to create drug delivery structures wherein dexamethasone-21-phosphate disodium salt (Dex21P) was encapsulated within a biodegradable polymer (PLGA) and water soluble poly(vinyl alcohol) (PVA) configurations. The ability to control the drug release profile through the spatial distribution of drug within the printed 3-dimensional structures is demonstrated. The fabricated configurations were characterised by optical microscopy and SEM to evaluate surface morphology. The results clearly demonstrate the successful encapsulation of dexamethasone within a laminated PLGA:PVA structure. The resulting drug release profiles from the structures show a two stage release profile with distinctly different release rates and minimal initial burst release observed. Dexamethasone release was monitored over a 4-month period. This approach clearly demonstrates that the extrusion printing technique provides a facile and versatile approach to fabrication of novel drug delivery platforms.
Collapse
Affiliation(s)
- Parawee Rattanakit
- Department of Chemistry and Centre for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | | | | | | | | |
Collapse
|
88
|
Multiscale Fibrous Scaffolds in Regenerative Medicine. ADVANCES IN POLYMER SCIENCE 2011. [DOI: 10.1007/12_2011_163] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
89
|
Góra A, Sahay R, Thavasi V, Ramakrishna S. Melt-Electrospun Fibers for Advances in Biomedical Engineering, Clean Energy, Filtration, and Separation. POLYM REV 2011. [DOI: 10.1080/15583724.2011.594196] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
90
|
Lee H, Kim G. Cryogenically fabricated three-dimensional chitosan scaffolds with pore size-controlled structures for biomedical applications. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.04.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
91
|
Abstract
Melt electrospinning is relatively under-investigated compared to solution electrospinning but provides opportunities in numerous areas, in which solvent accumulation or toxicity are a concern. These applications are diverse, and provide a broad set of challenges to researchers involved in electrospinning. In this context, melt electrospinning provides an alternative approach that bypasses some challenges to solution electrospinning, while bringing new issues to the forefront, such as the thermal stability of polymers. This Focus Review describes the literature on melt electrospinning, as well as highlighting areas where both melt and solution are combined, and potentially merge together in the future.
Collapse
Affiliation(s)
- Dietmar W Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove 4059, Australia.
| | | |
Collapse
|
92
|
Fabrication of three-dimensional collagen scaffold using an inverse mould-leaching process. Bioprocess Biosyst Eng 2011; 34:903-11. [DOI: 10.1007/s00449-011-0541-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 03/24/2011] [Indexed: 12/18/2022]
|
93
|
Lee H, Yeo M, Ahn S, Kang DO, Jang CH, Lee H, Park GM, Kim GH. Designed hybrid scaffolds consisting of polycaprolactone microstrands and electrospun collagen-nanofibers for bone tissue regeneration. J Biomed Mater Res B Appl Biomater 2011; 97:263-70. [DOI: 10.1002/jbm.b.31809] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Revised: 10/06/2010] [Accepted: 11/22/2010] [Indexed: 11/12/2022]
|
94
|
Qiu W, Huang Y, Teng W, Cohn CM, Cappello J, Wu X. Complete recombinant silk-elastinlike protein-based tissue scaffold. Biomacromolecules 2010; 11:3219-27. [PMID: 21058633 PMCID: PMC3006068 DOI: 10.1021/bm100469w] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to their improved biocompatibility and specificity over synthetic materials, protein-based biomaterials, either derived from natural sources or genetically engineered, have been widely fabricated into nanofibrous scaffolds for tissue engineering applications. However, their inferior mechanical properties often require the reinforcement of protein-based tissue scaffolds using synthetic polymers. In this study, we report the electrospinning of a completely recombinant silk-elastinlike protein-based tissue scaffold with excellent mechanical properties and biocompatibility. In particular, SELP-47K containing tandemly repeated polypeptide sequences derived from native silk and elastin was electrospun into nanofibrous scaffolds, and stabilized via chemical vapor treatment and mechanical preconditioning. When fully hydrated in 1× PBS at 37 °C, mechanically preconditioned SELP-47K scaffolds displayed elastic moduli of 3.4-13.2 MPa, ultimate tensile strengths of 5.7-13.5 MPa, deformabilities of 100-130% strain, and resilience of 80.6-86.9%, closely matching or exceeding those of protein-synthetic blend polymeric scaffolds. Additionally, SELP-47K nanofibrous scaffolds promoted cell attachment and growth, demonstrating their in vitro biocompatibility.
Collapse
Affiliation(s)
| | | | | | | | | | - Xiaoyi Wu
- To whom correspondence should be addressed. Tel.: 1-00-520-626-5854. Fax: 1-00-520-621-8198.
| |
Collapse
|
95
|
McCullen SD, Haslauer CM, Loboa EG. Fiber-reinforced scaffolds for tissue engineering and regenerative medicine: use of traditional textile substrates to nanofibrous arrays. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01443e] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|