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Adhesion and Proliferation of Mesenchymal Stem Cells on Plasma-Coated Biodegradable Nanofibers. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6070193] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Various biomedical applications of biodegradable nanofibers are a hot topic, as evidenced by the ever-increasing number of publications in this field. However, as-prepared nanofibers suffer from poor cell adhesion, so their surface is often modified. In this work, active polymeric surface layers with different densities of COOH groups from 5.1 to 14.4% were successfully prepared by Ar/CO2/C2H4 plasma polymerization. It has been shown that adhesion and proliferation of mesenchymal stem cells (MSCs) seeded onto plasma-modified PCL nanofibers are controlled by the CO2:C2H4 ratio. At a high CO2:C2H4 ratio, a well-defined network of actin microfilaments is observed in the MSCs. Nanofibers produced at a low CO2:C2H4 ratio showed poor cell adhesion and very poor survival. There were significantly fewer cells on the surface, they had a small spreading area, a poorly developed network of actin filaments, and there were almost no stress fibrils. The maximum percentage of proliferating cells was recorded at a CO2:C2H4 ratio of 35:15 compared with gaseous environments of 25:20 and 20:25 (24.1 ± 1.5; 8.4 ± 0.9, and 4.1 ± 0.4%, respectively). Interestingly, no differences were observed between the number of cells on the untreated surface and the plasma-polymerized surface at CO2:C2H4 = 20:25 (4.9 ± 0.6 and 4.1 ± 0.4, respectively). Thus, Ar/CO2/C2H4 plasma polymerization can be an excellent tool for regulating the viability of MSCs by simply adjusting the CO2:C2H4 ratio.
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Moyers-Montoya ED, Escobedo-González RG, Vargas-Requena CL, Garcia-Casillas PE, Martínez-Pérez CA. Epithelial Growth Factor-Anchored on Polycaprolactone/6-deoxy-6-amino- β-cyclodextrin Nanofibers: In Vitro and In Vivo Evaluation. Polymers (Basel) 2021; 13:polym13081303. [PMID: 33923388 PMCID: PMC8071511 DOI: 10.3390/polym13081303] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/28/2021] [Accepted: 03/30/2021] [Indexed: 02/07/2023] Open
Abstract
Polycaprolactone (PCL) is a well-known FDA approved biomaterial for tissue engineering. However, its hydrophobic properties limit its use for skin wound healing which makes its functionalization necessary. In this work, we present the fabrication and evaluation of PCL nanofibers by the electrospinning technique, as well as PCL functionalized with 6-deoxy-6-amino-β-cyclodextrin (aminated nanofibers). Afterwards, epithelial growth factor (EGF) was anchored onto hydrophilic PCL/deoxy-6-amino-β-cyclodextrin. The characterization of the three electrospun fibers was made by means of field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR); Confocal-Raman Spectroscopy were used for elucidated the chemical structure, the hydrophilicity was determined by Contact Angle (CA). In vitro cell proliferation test was made by seeding embryonic fibroblast cell line (3T3) onto the electrospun mats and in vivo studies in a murine model were conducted to prove its effectivity as skin wound healing material. The in vitro studies showed that aminated nanofibers without and with EGF had 100 and 150% more cell proliferation of 3T3 cells against the PCL alone, respectively. In vivo results showed that skin wound healing in a murine model was accelerated by the incorporation of the EGF. In addition, the EGF had favorable effects in epidermal cell proliferation. The study demonstrates that a protein of high biological interest like EGF can be attached covalently to the surface of a synthetic material enriched with amino groups. This kind of biomaterial has a great potential for applications in skin regeneration and wound healing.
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Affiliation(s)
- Edgar D. Moyers-Montoya
- Institute of Engineering and Technology, Autonomous University of the City of Juárez, UACJ ve. Del Charro 450 Norte, Ciudad Juárez 32310, Mexico; (E.D.M.-M.); (P.E.G.-C.)
| | - René Gerardo Escobedo-González
- Department of Industrial Maintenance, Technological University of the City of Juárez, Av. Universidad Tecnológica No. 3051, Col. Lote Bravo II, Ciudad Juárez 32695, Mexico;
| | - Claudia L. Vargas-Requena
- Institute of Biomedical Sciences, Autonomous University of the City of Juarez, UACJ, Henry Dunant #4600, Ciudad Juárez 32310, Mexico;
| | - Perla Elvia Garcia-Casillas
- Institute of Engineering and Technology, Autonomous University of the City of Juárez, UACJ ve. Del Charro 450 Norte, Ciudad Juárez 32310, Mexico; (E.D.M.-M.); (P.E.G.-C.)
| | - Carlos A. Martínez-Pérez
- Institute of Engineering and Technology, Autonomous University of the City of Juárez, UACJ ve. Del Charro 450 Norte, Ciudad Juárez 32310, Mexico; (E.D.M.-M.); (P.E.G.-C.)
- Correspondence:
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Kchaou M, Alquraish M, Abuhasel K, Abdullah A, Ali AA. Electrospun Nanofibrous Scaffolds: Review of Current Progress in the Properties and Manufacturing Process, and Possible Applications for COVID-19. Polymers (Basel) 2021; 13:916. [PMID: 33809662 PMCID: PMC8002202 DOI: 10.3390/polym13060916] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 12/16/2022] Open
Abstract
Over the last twenty years, researchers have focused on the potential applications of electrospinning, especially its scalability and versatility. Specifically, electrospun nanofiber scaffolds are considered an emergent technology and a promising approach that can be applied to biosensing, drug delivery, soft and hard tissue repair and regeneration, and wound healing. Several parameters control the functional scaffolds, such as fiber geometrical characteristics and alignment, architecture, etc. As it is based on nanotechnology, the concept of this approach has shown a strong evolution in terms of the forms of the materials used (aerogels, microspheres, etc.), the incorporated microorganisms used to treat diseases (cells, proteins, nuclei acids, etc.), and the manufacturing process in relation to the control of adhesion, proliferation, and differentiation of the mimetic nanofibers. However, several difficulties are still considered as huge challenges for scientists to overcome in relation to scaffolds design and properties (hydrophilicity, biodegradability, and biocompatibility) but also in relation to transferring biological nanofibers products into practical industrial use by way of a highly efficient bio-solution. In this article, the authors review current progress in the materials and processes used by the electrospinning technique to develop novel fibrous scaffolds with suitable design and that more closely mimic structure. A specific interest will be given to the use of this approach as an emergent technology for the treatment of bacteria and viruses such as COVID-19.
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Affiliation(s)
- Mohamed Kchaou
- Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 001, Bisha 67714, Saudi Arabia; (M.A.); (K.A.); (A.A.A.)
| | - Mohammed Alquraish
- Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 001, Bisha 67714, Saudi Arabia; (M.A.); (K.A.); (A.A.A.)
| | - Khaled Abuhasel
- Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 001, Bisha 67714, Saudi Arabia; (M.A.); (K.A.); (A.A.A.)
| | - Ahmad Abdullah
- Department of Civil Engineering, College of Engineering, University of Bisha, P.O. Box 001, Bisha 67714, Saudi Arabia;
- Department of Civil Engineering, Faculty of Engineering, Aswan University, Aswan 81542, Egypt
| | - Ashraf A. Ali
- Department of Mechanical Engineering, College of Engineering, University of Bisha, P.O. Box 001, Bisha 67714, Saudi Arabia; (M.A.); (K.A.); (A.A.A.)
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Lee SJ, Choi JS, Eom MR, Jo HH, Kwon IK, Kwon SK, Park SA. Dexamethasone loaded bilayered 3D tubular scaffold reduces restenosis at the anastomotic site of tracheal replacement: in vitro and in vivo assessments. NANOSCALE 2020; 12:4846-4858. [PMID: 32016227 DOI: 10.1039/c9nr10341d] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Despite recent developments in the tracheal tissue engineering field, the creation of a patient specific substitute possessing both appropriate mechanical and biointerfacial properties remains challenging. Most tracheal replacement therapies fail due to restenosis at the anastomosis site. In this study, we designed a robust, biodegradable, 3D tubular scaffold by combining electrospinning (ELSP) and 3D (three-dimensional) printing techniques for use in transplantation therapy. After that, we loaded dexamethasone (DEX) onto the 3D tubular scaffold using mild surface modification reactions by using polydopamine (PDA), polyethyleneimine (PEI), and carboxymethyl-β-cyclodextrin (βCD). As a result, the fabricated 3D tubular scaffold had robust mechanical properties and the chemical modifications were confirmed to have proceeded successfully by physico-chemical analysis. The surface treatments allowed for a larger amount of DEX to be loaded onto the βCD modified scaffold as compared to the bare group. In vitro and in vivo studies demonstrated that the DEX loaded 3D tubular scaffold exhibited significantly enhanced anti-inflammation activity, enhanced tracheal mucosal regeneration, and formation of a patent airway. From our results, we believe that our system may represent an innovative paradigm in tracheal tissue engineering by providing proper mechanical properties and successful formation of tracheal tissue as a means of remodeling and healing tracheal defects for use in transplantation therapy.
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Affiliation(s)
- Sang Jin Lee
- Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea. and Department of Dental Materials, School of Dentistry, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Ji Suk Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
| | - Min Rye Eom
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea.
| | - Ha Hyeon Jo
- Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea.
| | - Il Keun Kwon
- Department of Dental Materials, School of Dentistry, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Seong Keun Kwon
- Department of Otorhinolaryngology-Head and Neck Surgery, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea. and Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Su A Park
- Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea.
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Mohanty C, Pradhan J. A human epidermal growth factor-curcumin bandage bioconjugate loaded with mesenchymal stem cell for in vivo diabetic wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110751. [PMID: 32279771 DOI: 10.1016/j.msec.2020.110751] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/16/2020] [Accepted: 02/15/2020] [Indexed: 12/24/2022]
Abstract
Bone-marrow-derived mesenchymal stem cells (MSCs) are of growing interest for the treatment of diabetic wound healing. However, they are often associated with poor proliferation and viability at the wounded site. Here, it is reported the use of human epidermal growth factor -curcumin bandage bioconjugate (EGF-Cur B) loaded with MSCs (MSCs-EGF-Cur B) at the wounded site for diabetic wound healing. Conjugation efficiency of EGF was determined by FTIR and XPS, surface morphology was analyzed by SEM and AFM and hydrophilicity by contact angle. Chemical integrity of curcumin with the polymeric matrix was studied by FTIR and, antiinflamatory and biocompatibility of EGF-Cur B were determined by TNF α ELISA and MTT study respectively. The culture of MSCs over EGF-Cur B enhanced MSC viability and expression of transcription factors associated with the maintenance of pluripotency and self-renewal (OCT¾, SOX2, and Nanog) as compared to MSCs grown in standard conditions. Its therapeutic effect was examined on diabetic full-thickness excisional wound model in terms of size and histological examination. Synergetic combinational approach especially when treated with MSCs-EGF-Cur B significantly enhanced wound closure by increasing granulation tissue formation, collagen deposition, and angiogenesis as compared to other groups. In conclusion, biocompatible therapeutic MSCs-EGF-Cur B might have great application for diabetic wound healing in the near future.
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Affiliation(s)
- Chandana Mohanty
- Institute of Life Sciences, Nalco Square, Bhubaneswar, India; School of Applied Science, KIIT University, Bhubaneswar, Odisha, India.
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Memic A, Abudula T, Mohammed HS, Joshi Navare K, Colombani T, Bencherif SA. Latest Progress in Electrospun Nanofibers for Wound Healing Applications. ACS APPLIED BIO MATERIALS 2019; 2:952-969. [DOI: 10.1021/acsabm.8b00637] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tuerdimaimaiti Abudula
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Halimatu S. Mohammed
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Kasturi Joshi Navare
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Thibault Colombani
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Sidi A. Bencherif
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02120, United States
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Sorbonne University, UTC CNTS UMR 7338, Biomechanics and Bioengineering, University of Technology of Compiegne, 60203 Compiegne, Cedex, France
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Liu X, Nielsen LH, Qu H, Christensen LP, Rantanen J, Yang M. Stability of lysozyme incorporated into electrospun fibrous mats for wound healing. Eur J Pharm Biopharm 2019; 136:240-249. [PMID: 30630062 DOI: 10.1016/j.ejpb.2019.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 11/09/2018] [Accepted: 01/06/2019] [Indexed: 02/04/2023]
Abstract
In this study, we investigated the feasibility of incorporating protein drugs into electrospun fibrous mats (EFMs) for wound healing using lysozyme as a model drug. Lysozyme nanoparticles (Lyso- NPs) were first obtained by electrospray. Lysozyme solutions were prepared with a binary solvent mixture of ethanol (EtOH)-water (H2O) at varied volume ratios. Subsequently, Lyso-NPs were suspended in poly(lactic-co-glycolic acid) (PLGA) solutions using trifluoroethanol (TFE) as a solvent. Lyso-NPs loaded EFMs were obtained by electrospinning of the aforementioned suspensions, and the bioactivity of lysozyme in the EFMs was investigated using fluorescence-based assay kit. The electrosprayed Lyso-NPs were spherical with barely altered bioactivity as compared to the untreated raw material when using EtOH- H2O (30:70, v/v) as the solvent. After the subsequent electrospinning process, more than 90% of the bioactivity of lysozyme was retained compared to the raw material. The cytotoxicity of the produced EFMs was evaluated by thiazolyl blue tetrazolium bromide (MTT) study and the proliferation and distribution of mouse fibroblast cells (L929) growing on EFMs were investigated using 4,6-diamidino-2-phenylindol dihydrochloride (DAPI) for nucleic acid staining. Nearly negligible cytotoxicity of all the EFMs was observed according to the MTT study. Furthermore, it was observed that the L929 cells grew well on the Lyso-EFMs, especially those with the modification of polyethylene glycol (PEG) that was added to improve the hydrophilicity of EFMs. This study demonstrated that the electrospray/electrospinning processes are suitable for loading biomacromolecules to produce functionalized wound dressings to promote wound healing.
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Affiliation(s)
- Xiaoli Liu
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Line Hagner Nielsen
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, DK-2800 Kgs. Lyngby, Denmark
| | - Haiyan Qu
- Department of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark
| | - Lars Porskjær Christensen
- Department of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark; Department of Chemistry and Bioscience, The Faculty of Engineering and Science, Aalborg University, Fredrik Bajers Vej 7H, DK-9220 Aalborg Ø, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Mingshi Yang
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark; Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China.
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Hassanzadeh P, Atyabi F, Dinarvand R. Tissue engineering: Still facing a long way ahead. J Control Release 2018; 279:181-197. [DOI: 10.1016/j.jconrel.2018.04.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/09/2018] [Accepted: 04/11/2018] [Indexed: 02/07/2023]
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Seif S, Planz V, Windbergs M. Delivery of Therapeutic Proteins Using Electrospun Fibers-Recent Developments and Current Challenges. Arch Pharm (Weinheim) 2017; 350. [PMID: 28845905 DOI: 10.1002/ardp.201700077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 07/26/2017] [Accepted: 07/29/2017] [Indexed: 12/22/2022]
Abstract
Proteins play a vital role within the human body by regulating various functions and even serving as structural constituent of many body parts. In this context, protein-based therapeutics have attracted a lot of attention in the last few decades as potential treatment of different diseases. Due to the steadily increasing interest in protein-based therapeutics, different dosage forms were investigated for delivering such complex macromolecules to the human body. Here, electrospun fibers hold a great potential for embedding proteins without structural damage and for controlled release of the protein for therapeutic applications. This review provides a comprehensive overview of the current state of protein-based carrier systems using electrospun fibers, with special emphasis on discussing their potential and key challenges in developing such therapeutic strategies, along with a prospective view of anticipated future directions.
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Affiliation(s)
- Salem Seif
- Department of Drug Delivery (DDEL), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Saarland University, Saarbruecken, Germany
| | - Viktoria Planz
- Department of Drug Delivery (DDEL), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Saarland University, Saarbruecken, Germany
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt, Germany
| | - Maike Windbergs
- Department of Drug Delivery (DDEL), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Saarland University, Saarbruecken, Germany
- Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt, Germany
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Lee JW, Yoon KR. Fabrication and characterization of block copolymer (PCL/PCL-PEG) nanofibers binding with collagen by electrospun. ANALYTICAL SCIENCE AND TECHNOLOGY 2014. [DOI: 10.5806/ast.2014.27.5.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sheikh FA, Ju HW, Moon BM, Park HJ, Kim JH, Kim SH, Lee OJ, Park CH. A comparative mechanical and biocompatibility study of poly(ε-caprolactone), hybrid poly(ε-caprolactone)–silk, and silk nanofibers by colloidal electrospinning technique for tissue engineering. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514549717] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Poly(ε-caprolactone) is an established polymer used in the fabrication of scaffolds for tissue engineering applications. Poly(ε-caprolactone)’s intrinsic hydrophobicity and toxicity, however, is greater than other natural polymers which limits its applicability. In this study, these problems were addressed by the modification of poly(ε-caprolactone) nanofibers with nanoparticles made from natural polymers, such as silk fibroin. Silk fibroin nanoparticles were prepared by desolvation and blended with poly(ε-caprolactone) to form a colloidal solution capable of forming nanofibers by electrospinning. Fabricated silk fibroin nanoparticles and three different nanofibers were characterized by transmission electron microscopy, variable pressure field emission scanning electron microscope, contact angle, Fourier transform infrared spectroscopy, thermogravimetric analysis, as well as an evaluation of their mechanical properties. The hybrid nanofibers incorporated with silk nanoparticles improved water absorbability compared to pure poly(ε-caprolactone) nanofibers and had much better mechanical properties than the silk fibroin nanofibers. The cytotoxicity and cell attachment tests were carried by culturing NIH 3T3 fibroblasts with the nanofibers. The hybrid nanofibers exhibited better cell viability and cell attachment than the pure poly(ε-caprolactone) nanofibers. Furthermore, the silk fibroin nanoparticles improved the water contact angle and enhanced cell interaction compared to the unmodified poly(ε-caprolactone). Based on these results, the modification of poly(ε-caprolactone) nanofibers with silk nanoparticles is a promising strategy for the improvement of poly(ε-caprolactone)-based nanofibers for future tissue engineering applications.
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Affiliation(s)
- Faheem A Sheikh
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Hyung Woo Ju
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Bo Mi Moon
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Hyun Jung Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Jung-Ho Kim
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Soo Hyeon Kim
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Ok Joo Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon, South Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Hallym University, Chuncheon, South Korea
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Kang J, Yoo HS. Nucleic Acid-Scavenging Electrospun Nanofibrous Meshes for Suppressing Inflammatory Responses. Biomacromolecules 2014; 15:2600-6. [DOI: 10.1021/bm500437e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jihyun Kang
- Department of Medical Biomaterials Engineering and ‡Institute of Bioscience and Bioengineering, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Hyuk Sang Yoo
- Department of Medical Biomaterials Engineering and ‡Institute of Bioscience and Bioengineering, Kangwon National University, Chuncheon 200-701, Republic of Korea
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Mortier C, Darmanin T, Guittard F. Major influence of the alkyl chain length of poly(2,4-dialkyl-3,4-propylenedioxythiophene) on the surface fibrous structures and hydrophobicity. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Claudio Mortier
- Univ. of Nice Sophia Antipolis, CNRS, UPMC, UMR 7336; Nice 06100 France
| | - Thierry Darmanin
- Univ. of Nice Sophia Antipolis, CNRS, UPMC, UMR 7336; Nice 06100 France
| | - Frederic Guittard
- Univ. of Nice Sophia Antipolis, CNRS, UPMC, UMR 7336; Nice 06100 France
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14
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Sullivan ST, Tang C, Kennedy A, Talwar S, Khan SA. Electrospinning and heat treatment of whey protein nanofibers. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.07.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Monteiro N, Martins A, Pires R, Faria S, Fonseca NA, Moreira JN, Reis RL, Neves NM. Immobilization of bioactive factor-loaded liposomes on the surface of electrospun nanofibers targeting tissue engineering. Biomater Sci 2014; 2:1195-1209. [DOI: 10.1039/c4bm00069b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Dexamethasone-loaded liposomes immobilized at the surface of electrospun polycaprolactone nanofiber meshes successfully promoted the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells.
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Affiliation(s)
- Nelson Monteiro
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Albino Martins
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Ricardo Pires
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Susana Faria
- Department of Mathematics for Science and Technology
- Research CMAT
- University of Minho
- 4800-058 Guimarães, Portugal
| | - Nuno A. Fonseca
- CNC – Center for Neurosciences and Cell Biology
- FFUC – Faculty of Pharmacy of the University of Coimbra
- 3000 Coimbra, Portugal
| | - João N. Moreira
- CNC – Center for Neurosciences and Cell Biology
- FFUC – Faculty of Pharmacy of the University of Coimbra
- 3000 Coimbra, Portugal
| | - Rui L. Reis
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
| | - Nuno M. Neves
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- Department of Polymer Engineering
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
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Zhao Y, Jiang Q, Xu H, Reddy N, Xu L, Yang Y. Cytocompatible and water-stable camelina protein films for tissue engineering. J Biomed Mater Res B Appl Biomater 2013; 102:729-36. [DOI: 10.1002/jbm.b.33053] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 09/12/2013] [Accepted: 09/22/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Yi Zhao
- Department of Textiles, Merchandising and Fashion Design; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
| | - Qiuran Jiang
- Department of Textiles, Merchandising and Fashion Design; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
| | - Helan Xu
- Department of Textiles, Merchandising and Fashion Design; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
| | - Narendra Reddy
- Department of Textiles, Merchandising and Fashion Design; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
| | - Lan Xu
- Department of Agronomy and Horticulture; University of Nebraska-Lincoln; Lincoln Nabraska 68583-0915
| | - Yiqi Yang
- Department of Textiles, Merchandising and Fashion Design; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
- Department of Biological Systems Engineering; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
- Nebraska Center for Materials and Nanoscience; University of Nebraska-Lincoln; Lincoln Nebraska 68583-0802
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17
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Choi JS, Messersmith PB, Yoo HS. Decoration of Electrospun Nanofibers with Monomeric Catechols to Facilitate Cell Adhesion. Macromol Biosci 2013; 14:270-9. [DOI: 10.1002/mabi.201300281] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Revised: 07/20/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Ji Suk Choi
- Department of Biomedical Materials Engineering; Kangwon National University; Chuncheon 200-701 Republic of Korea
- Institute of Bioscience and Bioengineering; Kangwon National University; Republic of Korea
| | - Phillip B. Messersmith
- Department of Biomedical Engineering and Chemistry of Life Processes Institute; Northwestern University; Evanston IL 60208 USA
| | - Hyuk Sang Yoo
- Department of Biomedical Materials Engineering; Kangwon National University; Chuncheon 200-701 Republic of Korea
- Institute of Bioscience and Bioengineering; Kangwon National University; Republic of Korea
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18
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Choi JS, Kim Y, Kang J, Jeong SY, Yoo HS. Electrospun chitosan microspheres for complete encapsulation of anionic proteins: controlling particle size and encapsulation efficiency. AAPS PharmSciTech 2013; 14:794-801. [PMID: 23636817 DOI: 10.1208/s12249-013-9965-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 03/30/2013] [Indexed: 11/30/2022] Open
Abstract
Electrospinning was employed to fabricate chitosan microspheres by a single-step encapsulation of proteins without organic solvents. Chitosan in acetic acid was electrospun toward a grounded sodium carbonate solution at various electric potential and feeding rates. Electrospun microspheres became insoluble and solidified in the sodium carbonate solution by neutralization of chitosan acetate. When the freeze-dried microspheres were examined by scanning electron microscopy, the small particle size was obtained at higher voltages. This is explained by the chitosan droplet size at the electrospinning needle was clearly controllable by the electric potential. The recovery yield of chitosan microspheres was dependent on the concentration of chitosan solution due to the viscosity is the major factor affecting formation of chitosan droplet during curling of the electrospinning jets. For protein encapsulation, fluorescently labeled bovine serum albumin (BSA) was codissolved with chitosan in the solution and electrospun. At higher concentration of sodium carbonate solution and longer solidification time in the solution, the encapsulation efficiency of the protein was confirmed to be significantly high. The high encapsulation efficiency was achievable by instant solidification of microspheres and electrostatic interactions between chitosan and BSA. Release profiles of BSA from the microspheres showed that the protein release was faster in acidic solution due to dissolution of chitosan. Reversed-phase chromatography of the released fractions confirmed that exposure of BSA to acidic solution during the electrospinning did not result in structural changes of the encapsulated protein.
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19
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West N, Baker P, Waryo T, Ngece FR, Iwuoha EI, O’Sullivan C, Katakis I. Highly sensitive gold-overoxidized polypyrrole nanocomposite immunosensor for antitransglutaminase antibody. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911512472277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Patients with coeliac disease, a gluten intolerance autoimmune disorder, have elevated levels of antitransglutaminase antibody in their human sera. In this study, an immunosensor for the electrochemical determination of antitransglutaminase antibody was constructed. The immunosensor architecture was based on the electrostatic deposition of transglutaminase antigen on a glassy carbon electrode modified with electrosynthetic overoxidized polypyrrole and gold nanoparticles and capped the transglutaminase layer with bovine serum albumin. As a result, good surface coverage of the gold nanoparticles (~100 nm) was achieved across the overoxidized polypyrrole film. Electrochemical impedance spectroscopy parameters of the gold nanoparticle–overoxidized polypyrrole electrode include time constant, exchange current density, and heterogeneous rate constant. The impedimetric immunosensor exhibited a charge transfer resistance-dependent linear range with a correlation coefficient value of 0.98 and a dynamic linear range of 10−6–10−4 mg mL−1. The synergistic effect of the gold nanoparticles on the overoxidized polypyrrole formed the electronic insulator platform as a selective accumulator for the analytes surrounding the nanoelectrode. This biosensor characteristic enabled detection of antitransglutaminase antibodies at very low concentrations without the aid of a secondary label.
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Affiliation(s)
- Natasha West
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| | - Priscilla Baker
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| | - Tesfaye Waryo
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| | - Fanelwa R Ngece
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| | - Emmanuel I Iwuoha
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| | - Ciara O’Sullivan
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, Taragona, Spain
| | - Ioanis Katakis
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, Taragona, Spain
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20
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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.
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21
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Liu X, Lin T, Gao Y, Xu Z, Huang C, Yao G, Jiang L, Tang Y, Wang X. Antimicrobial electrospun nanofibers of cellulose acetate and polyester urethane composite for wound dressing. J Biomed Mater Res B Appl Biomater 2012; 100:1556-65. [DOI: 10.1002/jbm.b.32724] [Citation(s) in RCA: 140] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 03/08/2012] [Accepted: 03/31/2012] [Indexed: 11/11/2022]
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22
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Xie Z, Buschle-Diller G, DeInnocentes P, Bird RC. Electrospun poly(D,L)-lactide nonwoven mats for biomedical application: Surface area shrinkage and surface entrapment. J Appl Polym Sci 2011. [DOI: 10.1002/app.34239] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Choi JS, Choi SH, Yoo HS. Coaxial electrospun nanofibers for treatment of diabetic ulcers with binary release of multiple growth factors. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03706k] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Martin AD, Boulos RA, Stubbs KA, Raston CL. Phosphonated calix[4]arene-based amphiphiles as scaffolds for fluorescent nano-fibres. Chem Commun (Camb) 2011; 47:7329-31. [DOI: 10.1039/c1cc11614b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Bioactive electrospun scaffolds delivering growth factors and genes for tissue engineering applications. Pharm Res 2010; 28:1259-72. [PMID: 21088985 PMCID: PMC3098998 DOI: 10.1007/s11095-010-0320-6] [Citation(s) in RCA: 260] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 11/03/2010] [Indexed: 12/17/2022]
Abstract
A biomaterial scaffold is one of the key factors for successful tissue engineering. In recent years, an increasing tendency has been observed toward the combination of scaffolds and biomolecules, e.g. growth factors and therapeutic genes, to achieve bioactive scaffolds, which not only provide physical support but also express biological signals to modulate tissue regeneration. Huge efforts have been made on the exploration of strategies to prepare bioactive scaffolds. Within the past five years, electrospun scaffolds have gained an exponentially increasing popularity in this area because of their ultrathin fiber diameter and large surface-volume ratio, which is favored for biomolecule delivery. This paper reviews current techniques that can be used to prepare bioactive electrospun scaffolds, including physical adsorption, blend electrospinning, coaxial electrospinning, and covalent immobilization. In addition, this paper also analyzes the existing challenges (i.e., protein instability, low gene transfection efficiency, and difficulties in accurate kinetics prediction) to achieve biomolecule release from electrospun scaffolds, which necessitate further research to fully exploit the biomedical applications of these bioactive scaffolds.
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26
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Liu X, Lin T, Fang J, Yao G, Zhao H, Dodson M, Wang X. In vivo wound healing and antibacterial performances of electrospun nanofibre membranes. J Biomed Mater Res A 2010; 94:499-508. [PMID: 20186775 DOI: 10.1002/jbm.a.32718] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In this work, nanofibre membranes have been produced from polyvinyl alcohol (PVA), polycaprolactone (PCL), polyacrylonitrile (PAN), poly (vinylidene fluoride-co-hexafluoropropene) (PVdF-HFP), and polymer blend of PAN and polyurethane (PEU) using an electrospinning technique, and wound healing performance of the as-spun nanofibre membranes was examined in vivo using female Sprague-Dawley rats. To understand the nutrition effect, a wool protein was coated on PVA and PCL nanofibres and incorporated into PVA nanofibres via coelectrospinning of a PVA solution containing the wool protein. Silver nanoparticles were also applied to PVA nanofibres to improve antibacterial activity. It was found that the wound healing performance is mainly influenced by the porosity, air permeability, and surface wettability of the nanofibre membranes. A nanofibre membrane with good hydrophilicity and high porosity considerably facilitates the healing of wound especially at the early healing stage. However, the fiber diameter and antibacterial activity have little effect on the wound healing efficiency. As pores in nanofibre membranes are typically smaller than that of conventional cotton gauze, the nanofibre membrane should be able to decontaminate and prevent exogenous infections via sieve effect. This work provides basic understanding of material structure-property relationship for further design of efficient nanofibre-based wound dressing materials.
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Affiliation(s)
- Xin Liu
- Centre for Material and Fibre Innovation, Deakin University, Geelong, VIC 3217, Australia
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27
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Kim HS, Yoo HS. MMPs-responsive release of DNA from electrospun nanofibrous matrix for local gene therapy: In vitro and in vivo evaluation. J Control Release 2010; 145:264-71. [DOI: 10.1016/j.jconrel.2010.03.006] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Revised: 02/15/2010] [Accepted: 03/09/2010] [Indexed: 12/22/2022]
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28
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Agarwal S, Wendorff JH, Greiner A. Chemistry on Electrospun Polymeric Nanofibers: Merely Routine Chemistry or a Real Challenge? Macromol Rapid Commun 2010; 31:1317-31. [DOI: 10.1002/marc.201000021] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Revised: 02/18/2010] [Indexed: 11/06/2022]
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29
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Feng C, Khulbe KC, Matsuura T. Recent progress in the preparation, characterization, and applications of nanofibers and nanofiber membranes via electrospinning/interfacial polymerization. J Appl Polym Sci 2010. [DOI: 10.1002/app.31059] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Pettikiriarachchi JTS, Parish CL, Shoichet MS, Forsythe JS, Nisbet DR. Biomaterials for Brain Tissue Engineering. Aust J Chem 2010. [DOI: 10.1071/ch10159] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Neurological disorders such as traumatic brain injuries or stroke result in neuronal loss and disruption of the brain parenchyma. Current treatment strategies are limited in that they can only mitigate the degeneration process or alleviate the symptoms but do not reverse the condition. In contrast, regenerative cell-based therapies offer long-term hope for many patients. Bioactive scaffolds are likely to reinforce the success of cell replacement therapies by providing a microenvironment that facilitates the survival, proliferation, differentiation, and connectivity of transplanted and/or endogenous cells. This Review outlines various biomaterials (including hydrogels, self-assembling peptides, and electrospun nanofibres) that have been investigated for the repair of brain tissue, and discusses strategies for the immobilization of biomolecules. An overview of the potential clinical applications of such scaffolds in neurodegenerative diseases is also provided.
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31
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Xu F, Cui FZ, Jiao YP, Meng QY, Wang XP, Cui XY. Improvement of cytocompatibility of electrospinning PLLA microfibers by blending PVP. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1331-1338. [PMID: 19160021 DOI: 10.1007/s10856-008-3686-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Accepted: 12/29/2008] [Indexed: 05/27/2023]
Abstract
In this study, microfiber films were used as scaffolds for the purpose of vascular tissue engineering. The microfiber films were prepared by electrospinning of poly (l-lactide) (PLLA) and polyvinyl pyrrolidone (PVP). PLLA and PVP with different ratios were blended with dichloromethane as a spinning solvent at room temperature. The properties of the composite microfiber films were investigated by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and contact angle measurement. The SEM images showed that the morphology of the microfiber films was mainly affected by the weight ratios of PLLA/PVP. The DSC results demonstrated that PLLA and PVP mixed uniformly. And the hydrophilicity of the films measured increased along with the decrease of the PLLA/PVP ratio. Vascular smooth muscle cells (VSMCs) were used to test the cytocompatibility. Cell morphology and cell proliferation were measured by SEM, laser scanning confocal microscopy (LSCM) and MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay after 2, 4, 6 days of culture. The results indicated that the cell morphology and proliferation on the composite films were better than that on the pure PLLA film. Furthermore, morphology and proliferation of VSMCs became better with decreasing of the weight ratio of PLLA/PVP. In addition, adhesion of platelet on the films was observed by SEM. The SEM images showed that the number of adhered platelets decreased with increment of PVP content in the films. The electrospinning microfiber composite films of PLLA and PVP would have potential use as the scaffolds for vascular tissue engineering.
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MESH Headings
- Biocompatible Materials/chemistry
- Cell Proliferation
- Cells, Cultured
- Coloring Agents/metabolism
- Humans
- Methylene Chloride/chemistry
- Microscopy, Confocal
- Microscopy, Electron, Scanning
- Molecular Weight
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiology
- Muscle, Smooth, Vascular/ultrastructure
- Platelet Adhesiveness
- Polyesters/chemistry
- Povidone/chemistry
- Solvents
- Temperature
- Tetrazolium Salts/metabolism
- Thiazoles/metabolism
- Time Factors
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Affiliation(s)
- Fei Xu
- Department of Materials Science and Engineering, Tsinghua University, Beijing, China
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32
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Lu H, Chen WJ, Xing Y, Ying DJ, Jiang B. Design and Preparation of an Electrospun Biomaterial Surgical Patch. J BIOACT COMPAT POL 2009. [DOI: 10.1177/0883911509103559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A biomaterial patch of electrospun collagen type fibers was designed and produced by electrospinning seven different concentrations (8%-20% w/v) of collagen solutions. The tensile strength, yield strength, and elastic modulus of the electrospun collagen fibrous patches were found to be suitable for clinical transplantation. No significant differences versus fresh porcine pericardium as controls were observed. The SEM images of the groups showed that the patches were smooth with uniform interwoven and porous morphology. The fibrous patches were biocompatible and did not elicit local or systemic toxic effects when implanted in vivo. These electrospun collagen fibrous patches have significant potential as surgical biomaterial patches.
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Affiliation(s)
- Hai Lu
- Department of Anatomy, Key Lab of Biomechanics and Tissue Engineering Third Military Medical University, Chongqing 400038, China
| | - Wei-Jun Chen
- Department of Anatomy, Key Lab of Biomechanics and Tissue Engineering Third Military Medical University, Chongqing 400038, China
| | - Yan Xing
- Department of Anatomy, Key Lab of Biomechanics and Tissue Engineering Third Military Medical University, Chongqing 400038, China
| | - Da-Jun Ying
- Department of Anatomy, Key Lab of Biomechanics and Tissue Engineering Third Military Medical University, Chongqing 400038, China
| | - Bo Jiang
- National Institute of Biomaterial Engineering Sichuan University, Chengdu 610064, China
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33
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Piras A, Chiellini F, Chiellini E, Nikkola L, Ashammakhi N. New Multicomponent Bioerodible Electrospun Nanofibers for Dual-controlled Drug Release. J BIOACT COMPAT POL 2008. [DOI: 10.1177/0883911508093357] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The objective of this study was to evaluate the bioerodible polymer poly(maleic anhydride-alt-2-methoxyethyl vinyl ether) n-butyl hemiester, for multicomponent drug-loaded nanofibers produced by electrospinning. Diclofenac sodium (DS) and human serum albumin (HSA) were used as conventional drug and biopharmaceutical models. The influence of drug loading was correlated to beads presence, morphology and fibers diameter. When DS and HSA were loaded separately, a uniform distribution within fibers and beads was observed. However, when both components were loaded simultaneously, a heterogeneous distribution of DS was observed with a prominent amount in the cylindrical beads. The in vitro drug release evaluation from these nanomaterials displayed an independent delivery of the two components. These studies support the feasibility of multicomponent, bioerodible polymeric nanofibers preparation loaded with combination of traditional drugs and proteins.
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Affiliation(s)
- A.M. Piras
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Application - INSTM Consortium Reference Center, Department of Chemistry & Industrial Chemistry University of Pisa, Pisa, Italy
| | - F. Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Application - INSTM Consortium Reference Center, Department of Chemistry & Industrial Chemistry University of Pisa, Pisa, Italy
| | - E. Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Application - INSTM Consortium Reference Center, Department of Chemistry & Industrial Chemistry University of Pisa, Pisa, Italy, ,
| | - L. Nikkola
- Department of Biomedical Engineering, Tampere University of Technology, Tampere, Finland
| | - N. Ashammakhi
- Department of Biomedical Engineering, Tampere University of Technology, Tampere, Finland
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Shin YM, Kim KS, Lim YM, Nho YC, Shin H. Modulation of spreading, proliferation, and differentiation of human mesenchymal stem cells on gelatin-immobilized poly(L-lactide-co--caprolactone) substrates. Biomacromolecules 2008; 9:1772-81. [PMID: 18558737 DOI: 10.1021/bm701410g] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Controlled adhesion and continuous growth of human mesenchymal stem cells (hMSCs) are essential for scaffold-based delivery of hMSCs in tissue engineering applications. The main goal of this study is to develop biofunctionalized synthetic substrates to actively control adhesion, spreading, and proliferation of hMSCs. gamma-Ray irradiation was employed to graft acrylic acid (AAc) to biodegeradable poly(L-lactide-co--caprolactone) (PLCL) films. Gelatin, a natural polymer, was then immobilized on the AAc grafted PLCL film (AAc-PLCL) to induce biomimetic interactions with the cells. The graft yield of AAc increased as the irradiation dose and AAc concentration increased, and the presence of gelatin (gelatin-AAc-PLCL) following immobilization was confirmed using ESCA. To investigate cell responses, hMSCs isolated from a human mandible were cultured on the various substrates and their adhesion, spreading, and proliferation were examined. After three days of culture, the DNA concentration from the cells cultured on gelatin-AAc-PLCL film was 2.9-fold greater than that on the PLCL film. Immunofluorescent staining of hMSCs cultured on the gelatin-AAc-PLCL films demonstrated homogeneous localization of F-Actin and vinculin in their cytoplasm, while mature adhesive structure was not observed from the cells cultured on other substrates. Furthermore, the ratio of projected area of adherent single cells on gelatin-AAc-PLCL films was significantly larger (116.80 +/- 12.78%) than that on the PLCL films (30.11 +/- 5.07%). Our results suggest that gelatin-immobilized PLCL substrates may be potentially used in tissue engineering, particularly as a stem cell delivery carrier for the regeneration of target tissue.
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Affiliation(s)
- Young Min Shin
- Department of Bioengineering and Cardiology Division, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
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35
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Choi JS, Leong KW, Yoo HS. In vivo wound healing of diabetic ulcers using electrospun nanofibers immobilized with human epidermal growth factor (EGF). Biomaterials 2008; 29:587-96. [DOI: 10.1016/j.biomaterials.2007.10.012] [Citation(s) in RCA: 399] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Accepted: 10/09/2007] [Indexed: 01/27/2023]
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