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Comparative study of kerateine and keratose based composite nanofibers for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 83:1-8. [PMID: 29208266 DOI: 10.1016/j.msec.2017.07.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 06/30/2017] [Accepted: 07/19/2017] [Indexed: 01/08/2023]
Abstract
In this work, two forms of keratins, kerateine (KR) and keratose (KO), were fabricated respectively into electrospun nanofibers by combination with polyurethane (PU). The differences of the structure and material properties between KR and KO based fibers were investigated by SEM observation, ATR-FTIR, XRD, contact angle, tensile test, in vitro degradation and cytocompatibility assay. The results indicated that the KR based nanofibers exhibited a higher tensile modulus, lower fracture strain and slower degradation rate, mainly due to the reformation of disulfide crosslinking between the regenerated cysteines in KR after the reductive extraction. The KO based nanofibers demonstrated a stronger hydrophilic property and higher water uptake ability due to the cysteic acid residues resulting from the oxidative extraction. Furthermore, the combination of keratins, regardless of KR or KO, could obviously improve the cytocompatibility of PU, especially in the cell attachment stage.
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52
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Raveendran S, Rochani AK, Maekawa T, Kumar DS. Smart Carriers and Nanohealers: A Nanomedical Insight on Natural Polymers. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E929. [PMID: 28796191 PMCID: PMC5578295 DOI: 10.3390/ma10080929] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/24/2017] [Accepted: 07/31/2017] [Indexed: 02/07/2023]
Abstract
Biodegradable polymers are popularly being used in an increasing number of fields in the past few decades. The popularity and favorability of these materials are due to their remarkable properties, enabling a wide range of applications and market requirements to be met. Polymer biodegradable systems are a promising arena of research for targeted and site-specific controlled drug delivery, for developing artificial limbs, 3D porous scaffolds for cellular regeneration or tissue engineering and biosensing applications. Several natural polymers have been identified, blended, functionalized and applied for designing nanoscaffolds and drug carriers as a prerequisite for enumerable bionano technological applications. Apart from these, natural polymers have been well studied and are widely used in material science and industrial fields. The present review explains the prominent features of commonly used natural polymers (polysaccharides and proteins) in various nanomedical applications and reveals the current status of the polymer research in bionanotechnology and science sectors.
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Affiliation(s)
- Sreejith Raveendran
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
| | - Ankit K Rochani
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
| | - Toru Maekawa
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
| | - D Sakthi Kumar
- Bio Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Saitama 350-8585, Japan.
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53
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Kim JW, Kim MJ, Ki CS, Kim HJ, Park YH. Fabrication of bi-layer scaffold of keratin nanofiber and gelatin-methacrylate hydrogel: Implications for skin graft. Int J Biol Macromol 2017; 105:541-548. [PMID: 28711618 DOI: 10.1016/j.ijbiomac.2017.07.067] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 07/06/2017] [Accepted: 07/11/2017] [Indexed: 11/30/2022]
Abstract
Bi-layer scaffold composed of human hair keratin/chitosan nanofiber mat and gelatin methacrylate (GelMA) hydrogel was fabricated by using electrospinning and photopolymerization techniques. To prepare the nanofiber layer, the blend solution of human hair keratin and chitosan (mixture ratio: 5/5) was electrospun using formic acid as a solvent in the presence of poly(ethylene glycol), followed by cross-linking with glutaraldehyde. The tensile strength of the human hair keratin/chitosan nanofiber mat was much higher than that of pure human hair keratin nanofiber mat. Meanwhile, the blend nanofiber mat was relatively more compatible with HaCaT cell proliferation and keratinocyte differentiation than the pure chitosan nanofiber mat. The bi-layer scaffold was prepared by photopolymerization of GelMA under the cross-linked nanofiber mat. To evaluate the feasibility as a skin graft, human fibroblast was encapsulated in the hydrogel layer and HaCaT cells were cultured on the nanofiber layer and they were co-cultured for 10days. As a result, the encapsulated fibroblasts proliferated in the hydrogel matrix and HaCaT cells formed a cell layer on the top of scaffold, mimicking dermis and epidermis of skin tissue.
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Affiliation(s)
- Jong Wook Kim
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Min Jin Kim
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Chang Seok Ki
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun Jeong Kim
- Department of Dental Anesthesiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080, Republic of Korea
| | - Young Hwan Park
- Department of Biosystems and Biomaterials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea.
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54
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Yao CH, Lee CY, Huang CH, Chen YS, Chen KY. Novel bilayer wound dressing based on electrospun gelatin/keratin nanofibrous mats for skin wound repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 28629050 DOI: 10.1016/j.msec.2017.05.076] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A bilayer membrane (GKU) with a commercial polyurethane wound dressing as an outer layer and electrospun gelatin/keratin nanofibrous mat as an inner layer was fabricated as a novel wound dressing. Scanning electron micrographs showed that gelatin/keratin nanofibers had a uniform morphology and bead-free structure with average fiber diameter of 160.4nm. 3-(4,5-Dimethylthiazolyl)-2,5-diphenyltetrazolium bromide assay using L929 fibroblast cells indicated that the residues released from the gelatin/keratin composite nanofibrous mat accelerated cell proliferation. Cell attachment experiments revealed that adhered cells spread better and migrated deeper into the gelatin/keratin nanofibrous mat than that into the gelatin nanofibrous mat. In animal studies, compared with the bilayer membrane without keratin, gauze and commercial wound dressing, Comfeel®, GKU membrane gave much more number of blood vessels and a greater reduction in wound area at 4days, and better wound repair at 14days with a thicker epidermis and larger number of newly formed hair follicles. GKU membrane, thus, could be a good candidate for wound dressing applications.
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Affiliation(s)
- Chun-Hsu Yao
- Biomaterials Translational Research Center, China Medical University Hospital, Taichung 40202, Taiwan; Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40202, Taiwan; School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Department of Biomedical Informatics, Asia University, Taichung 41354, Taiwan
| | - Chia-Yu Lee
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan
| | - Chiung-Hua Huang
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 40601, Taiwan
| | - Yueh-Sheng Chen
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Department of Biomedical Informatics, Asia University, Taichung 41354, Taiwan
| | - Kuo-Yu Chen
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan.
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55
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Babitha S, Rachita L, Karthikeyan K, Shoba E, Janani I, Poornima B, Purna Sai K. Electrospun protein nanofibers in healthcare: A review. Int J Pharm 2017; 523:52-90. [PMID: 28286080 DOI: 10.1016/j.ijpharm.2017.03.013] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 03/06/2017] [Accepted: 03/07/2017] [Indexed: 12/11/2022]
Abstract
Electrospun nanofibers are being utilized for a wide range of healthcare applications. A plethora of natural and synthetic polymers are exploited for their ability to be electrospun and replace the complex habitat provided by the extracellular matrix for the cells. The fabrication of nanofibers can be tuned to act as a multicarrier system to deliver drugs, growth factors and health supplements etc. in a sustained manner. Owing to its pliability, nanofibers reached its heights in tissue engineering and drug delivery applications. This review mainly focuses on various standardized parameters and optimized blending ratios for animal and plant proteins to yield fine, continuous nanofibers for effective utilization in various healthcare applications.
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Affiliation(s)
- S Babitha
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
| | - Lakra Rachita
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
| | - K Karthikeyan
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
| | - Ekambaram Shoba
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
| | - Indrakumar Janani
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
| | - Balan Poornima
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India
| | - K Purna Sai
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020, India.
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56
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Fan L, Ma Q, Tian J, Li D, Xi X, Dong X, Yu W, Wang J, Liu G. Novel nanofiber yarns synchronously endued with tri-functional performance of superparamagnetism, electrical conductivity and enhanced fluorescence prepared by conjugate electrospinning. RSC Adv 2017. [DOI: 10.1039/c7ra09598h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
[Fe3O4/PANI/PAN]//[Eu(BA)3phen/PAN] heterogeneous nanofiber yarns were fabricated via electrospinning, and the yarns synchronously possess trifunctionality of superparamagnetism, electrical conductivity and enhanced fluorescence.
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Affiliation(s)
- Libing Fan
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Qianli Ma
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Jiao Tian
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Dan Li
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Xue Xi
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Xiangting Dong
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Wensheng Yu
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Jinxian Wang
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - Guixia Liu
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province
- Changchun University of Science and Technology
- Changchun 130022
- China
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57
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Zhu H, Li R, Wu X, Chen K, Che J. Controllable fabrication and characterization of hydrophilic PCL/wool keratin nanonets by electronetting. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.11.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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58
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Adhikari U, Rijal NP, Khanal S, Pai D, Sankar J, Bhattarai N. Magnesium incorporated chitosan based scaffolds for tissue engineering applications. Bioact Mater 2016; 1:132-139. [PMID: 29744402 PMCID: PMC5883957 DOI: 10.1016/j.bioactmat.2016.11.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 11/11/2016] [Accepted: 11/14/2016] [Indexed: 11/30/2022] Open
Abstract
Chitosan based porous scaffolds are of great interest in biomedical applications especially in tissue engineering because of their excellent biocompatibility in vivo, controllable degradation rate and tailorable mechanical properties. This paper presents a study of the fabrication and characterization of bioactive scaffolds made of chitosan (CS), carboxymethyl chitosan (CMC) and magnesium gluconate (MgG). Scaffolds were fabricated by subsequent freezing-induced phase separation and lyophilization of polyelectrolyte complexes of CS, CMC and MgG. The scaffolds possess uniform porosity with highly interconnected pores of 50–250 μm size range. Compressive strengths up to 400 kPa, and elastic moduli up to 5 MPa were obtained. The scaffolds were found to remain intact, retaining their original three-dimensional frameworks while testing in in-vitro conditions. These scaffolds exhibited no cytotoxicity to 3T3 fibroblast and osteoblast cells. These observations demonstrate the efficacy of this new approach to preparing scaffold materials suitable for tissue engineering applications. Chitosan-magnesium-based composite scaffolds successfully synthesized. Uniformly distributed 3D networks, stable in cell culture medium with pore size in the range of 50–250 μm obtained. Compressive strengths up to 400 kPa and elastic moduli up to 5 MPa obtained. No cytotoxicity observed with 3T3 fibroblast cells.
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Affiliation(s)
- Udhab Adhikari
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC, USA
- NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC, USA
| | - Nava P. Rijal
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC, USA
- NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC, USA
| | - Shalil Khanal
- Department of Energy and Environmental Systems, North Carolina A&T State University, Greensboro, NC, USA
- NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC, USA
| | - Devdas Pai
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC, USA
- NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC, USA
| | - Jagannathan Sankar
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC, USA
- NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC, USA
| | - Narayan Bhattarai
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC, USA
- NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC, USA
- Corresponding author. Department of Chemical, Biological and Bioengineering, North Carolina A&T State University, Greensboro, NC, USA.
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59
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Shavandi A, Bekhit AEDA, Carne A, Bekhit A. Evaluation of keratin extraction from wool by chemical methods for bio-polymer application. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911516662069] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
This study investigated some physicochemical properties of keratin extracted from Merino wool using five chemical extraction methods: alkali hydrolysis, sulfitolysis, reduction, oxidation, and extraction using ionic liquid. The ionic liquid method produced the highest protein yield (95%), followed by sulfitolysis method (89%), while the highest extraction yield was obtained with the reduction method (54%). The lowest yield was obtained with the oxidation method (6%). The oxidation extract contained higher molecular weight (>40 kDa) protein components, whereas the alkali hydrolysis extract contained protein material of <10 kDa. The sulfitolysis, reduction, and ionic liquid extracts contained various protein components between 3.5 and 60 kDa. Keratin obtained from various extraction methods had different yield, morphology, and physicochemical properties. None of the samples were toxic to L929 fibroblast cells up to a concentration of 2.5 mg/mL. Apart from the alkali hydrolysis extract, all other keratin extracts (reduction, sulfitolysis, ionic liquid, and oxidation) showed Fourier transform infrared adsorption peaks attributed to the sulfitolysis–oxidation stretching vibrations of cysteine-S-sulfonated residues, with the oxidation extract showing the highest content of cysteine-S-sulfonated residues. This study indicates that the properties of the keratin extract obtained vary depending on the extraction method used, which has implications for use in structural biomaterial applications.
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Affiliation(s)
- Amin Shavandi
- Department of Food Science, University of Otago, Dunedin, New Zealand
| | | | - Alan Carne
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Adnan Bekhit
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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60
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Zhang N, Luo Y, He L, Zhou L, Wu W. A self-assembly peptide nanofibrous scaffold reduces inflammatory response and promotes functional recovery in a mouse model of intracerebral hemorrhage. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1205-17. [DOI: 10.1016/j.nano.2015.12.387] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/30/2015] [Indexed: 10/22/2022]
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61
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Li Y, Wang Y, Ye J, Yuan J, Xiao Y. Fabrication of poly(ε-caprolactone)/keratin nanofibrous mats as a potential scaffold for vascular tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:177-183. [PMID: 27524010 DOI: 10.1016/j.msec.2016.05.117] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 05/10/2016] [Accepted: 05/27/2016] [Indexed: 12/27/2022]
Abstract
The natural abundance of cell adhesion sequences, RGD (Arg-Gly-Asp) and LDV (Leu-Asp-Val) in the keratins make them suitable as biomaterials for tissue engineering applications. Herein, keratins were coelectrospun with poly(ε-caprolactone)(PCL) at the ratio of 9/1, 8/2, and 7/3 to afford nanofibrous mats. The resulting mats were surface-characterized by ATR-FTIR, SEM, WCA, and XPS. Cell attachment data showed that NIH 3T3 cells adhered more to the PCL/keratin nanofibrous mats than the pristine PCL mats. The MTT assay revealed that the PCL/keratin mats had improved cell viability. The blood clotting time test (APTT, PT, and TT) indicated the PCL/keratin mats exerted good blood compatibility. These mats would be a good candidate as a scaffold for vascular tissue engineering.
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Affiliation(s)
- Yanmei Li
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yanfang Wang
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jingjie Ye
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jiang Yuan
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Yinghong Xiao
- Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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62
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Mahoney C, Conklin D, Waterman J, Sankar J, Bhattarai N. Electrospun nanofibers of poly(ε-caprolactone)/depolymerized chitosan for respiratory tissue engineering applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:611-25. [DOI: 10.1080/09205063.2016.1144454] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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63
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Thompson ZS, Rijal NP, Jarvis D, Edwards A, Bhattarai N. Synthesis of Keratin-based Nanofiber for Biomedical Engineering. J Vis Exp 2016:e53381. [PMID: 26889917 DOI: 10.3791/53381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Electrospinning, due to its versatility and potential for applications in various fields, is being frequently used to fabricate nanofibers. Production of these porous nanofibers is of great interest due to their unique physiochemical properties. Here we elaborate on the fabrication of keratin containing poly (ε-caprolactone) (PCL) nanofibers (i.e., PCL/keratin composite fiber). Water soluble keratin was first extracted from human hair and mixed with PCL in different ratios. The blended solution of PCL/keratin was transformed into nanofibrous membranes using a laboratory designed electrospinning set up. Fiber morphology and mechanical properties of the obtained nanofiber were observed and measured using scanning electron microscopy and tensile tester. Furthermore, degradability and chemical properties of the nanofiber were studied by FTIR. SEM images showed uniform surface morphology for PCL/keratin fibers of different compositions. These PCL/keratin fibers also showed excellent mechanical properties such as Young's modulus and failure point. Fibroblast cells were able to attach and proliferate thus proving good cell viability. Based on the characteristics discussed above, we can strongly argue that the blended nanofibers of natural and synthetic polymers can represent an excellent development of composite materials that can be used for different biomedical applications.
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Affiliation(s)
- Zanshe S Thompson
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University
| | - Nava P Rijal
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University
| | - David Jarvis
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University
| | - Angela Edwards
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University
| | - Narayan Bhattarai
- Department of Chemical, Biological and Bioengineering, North Carolina A&T State University; NSF ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University;
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64
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Lv ZJ, Liu Y, Miao H, Leng ZQ, Guo JH, Liu J. Effects of multiwalled carbon nanotubes on electrospun poly(lactide-co-glycolide)-based nanocomposite scaffolds on neural cells proliferation. J Biomed Mater Res B Appl Biomater 2016; 105:934-943. [PMID: 26849161 DOI: 10.1002/jbm.b.33620] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 12/08/2015] [Accepted: 01/03/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Zheng Jun Lv
- Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
- Queen Mary University of London; London E1 4NS United Kingdom
| | - Yang Liu
- Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
| | - Hui Miao
- Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
| | - Zhi Qian Leng
- Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
- Department of Operation Room; the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
| | - Jian Hui Guo
- Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
| | - Jing Liu
- Regenerative Medicine Center, the First Affiliated Hospital of Dalian Medical University; Dalian 116011 People's Republic of China
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65
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Lepry WC, Smith S, Liverani L, Boccaccini AR, Nazhat SN. Acellular Bioactivity of Sol-Gel Derived Borate Glass-Polycaprolactone Electrospun Scaffolds. BIOMEDICAL GLASSES 2016. [DOI: 10.1515/bglass-2016-0011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractRecently, sol-gel derived borate glasses (BGs) have shown unprecedented conversion rates to bone-like mineral (hydroxycarbonated apatite). In an effort to explore their potential applications in bone tissue engineering, this study reports on the fabrication and characterization of BG particle incorporated electrospun "- polycaprolactone (PCL) fibrous composites. The electrospinning technique successfully incorporated PCL fibres with BG particles at 2.5 and 5 w/v%, with the higher BG loading creating a three-dimensional cotton-wool like morphology. Dynamic vapour sorption showed greater extents of mass change with BG content attributable to water sorption, and indicating greater reactivity in the composite systems. In vitro bioactivity was investigated in simulated body fluid for up to 7 days. Scanning electron microscopy, Fourier-transform infrared spectroscopy and xray diffraction indicated apatite formation in the 5 w/v% incorporated composite scaffold, which initiated as early as day 3. In summary, sol-gel derived BGs incorporatedfibrous electrospun PCL composites indicate rapid reactivity and bioactivity with potential applications in mineralized tissue engineering.
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66
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Lawson C, Stanishevsky A, Sivan M, Pokorny P, Lukáš D. Rapid fabrication of poly(ε-caprolactone) nanofibers using needleless alternating current electrospinning. J Appl Polym Sci 2015. [DOI: 10.1002/app.43232] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Caitlin Lawson
- Department of Physics; University of Alabama at Birmingham; Birmingham Alabama 35294
| | - Andrei Stanishevsky
- Department of Physics; University of Alabama at Birmingham; Birmingham Alabama 35294
| | - Manikandan Sivan
- Faculty of Textile Engineering; Technical University of Liberec, Liberec; 461 17 Czech Republic
| | - Pavel Pokorny
- Faculty of Textile Engineering; Technical University of Liberec, Liberec; 461 17 Czech Republic
| | - David Lukáš
- Faculty of Textile Engineering; Technical University of Liberec, Liberec; 461 17 Czech Republic
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67
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Khajavi R, Abbasipour M, Bahador A. Electrospun biodegradable nanofibers scaffolds for bone tissue engineering. J Appl Polym Sci 2015. [DOI: 10.1002/app.42883] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ramin Khajavi
- Nanotechnology Research Center, South Tehran Branch, Islamic Azad University; Tehran Iran
| | - Mina Abbasipour
- Department of Textile Engineering; Science and Research Branch, Islamic Azad University; Tehran Iran
| | - Abbas Bahador
- Department of Medical Microbiology, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
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Joshi MK, Tiwari AP, Pant HR, Shrestha BK, Kim HJ, Park CH, Kim CS. In Situ Generation of Cellulose Nanocrystals in Polycaprolactone Nanofibers: Effects on Crystallinity, Mechanical Strength, Biocompatibility, and Biomimetic Mineralization. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19672-83. [PMID: 26295953 DOI: 10.1021/acsami.5b04682] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Post-electrospinning treatment is a facile process to improve the properties of electrospun nanofibers for various applications. This technique is commonly used when direct electrospinning is not a suitable option to fabricate a nonwoven membrane of the desired polymer in a preferred morphology. In this study, a representative natural-synthetic hybrid of cellulose acetate (CA) and polycaprolactone (PCL) in different ratios was fabricated using an electrospinning process, and CA in the hybrid fiber was transformed into cellulose (CL) by post-electrospinning treatment via alkaline saponification. Scanning electron microscopy was employed to study the effects of polymer composition and subsequent saponification on the morphology of the nanofibers. Increasing the PCL content in the PCL/CA blend solution caused a gradual decrease in viscosity, resulting in smoother and more uniform fibers. The saponification of fibers lead to pronounced changes in the physicochemical properties. The crystallinity of the PCL in the composite fiber was varied according to the composition of the component polymers. The water contact angle was considerably decreased (from 124° to less than 20°), and the mechanical properties were greatly enhanced (Young's Modulus was improved by ≈20-30 fold, tensile strength by 3-4 fold, and tensile stress by ≈2-4 fold) compared to those of PCL and PCL/CA membranes. Regeneration of cellulose chains in the nanofibers increased the number of hydroxyl groups, which increased the hydrogen bonding, thereby improving the mechanical properties and wettability of the composite nanofibers. The improved wettability and presence of surface functional groups enhanced the ability to nucleate bioactive calcium phosphate crystals throughout the matrix when exposed to a simulated body fluid solution. Experimental results of cell viability assay, confocal microscopy, and scanning electron microscopy imaging showed that the fabricated nanofibrous membranes have excellent ability for MC3T3-E1 cell proliferation and growth. Given the versatility and widespread use of cellulose-synthetic hybrid systems in the construction of tissue-engineered scaffolds, this work provides a novel strategy to fabricate the biopolymer-based materials for applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- Mahesh Kumar Joshi
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Arjun Prasad Tiwari
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | | | - Bishnu Kumar Shrestha
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Han Joo Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
- Department of Convergence Technology Engineering, College of engineering, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Chonbuk National University , Jeonju 561-756, Republic of Korea
- Division of Mechanical Design Engineering, Chonbuk National University , Jeonju 561-756, Republic of Korea
- Eco-friendly machine parts design research center, Chonbuk National University , Jeonju 561-756, Republic of Korea
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69
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Boakye MAD, Rijal NP, Adhikari U, Bhattarai N. Fabrication and Characterization of Electrospun PCL-MgO-Keratin-Based Composite Nanofibers for Biomedical Applications. MATERIALS 2015; 8:4080-4095. [PMID: 28793426 PMCID: PMC5455672 DOI: 10.3390/ma8074080] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 06/17/2015] [Accepted: 06/26/2015] [Indexed: 11/29/2022]
Abstract
Polymeric nanofibers are of great interest in biomedical applications, such as tissue engineering, drug delivery and wound healing, due to their ability to mimic and restore the function of natural extracellular matrix (ECM) found in tissues. Electrospinning has been heavily used to fabricate nanofibers because of its reliability and effectiveness. In our research, we fabricated poly(ε-caprolactone)-(PCL), magnesium oxide-(MgO) and keratin (K)-based composite nanofibers by electrospinning a blend solution of PCL, MgO and/or K. The electrospun nanofibers were analyzed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), mechanical tensile testing and inductively-coupled plasma optical emission spectroscopy (ICP-OES). Nanofibers with diameters in the range of 0.2–2.2 µm were produced by using different ratios of PCL/MgO and PCL-K/MgO. These fibers showed a uniform morphology with suitable mechanical properties; ultimate tensile strength up to 3 MPa and Young’s modulus 10 MPa. The structural integrity of nanofiber mats was retained in aqueous and phosphate buffer saline (PBS) medium. This study provides a new composite material with structural and material properties suitable for potential application in tissue engineering.
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Affiliation(s)
- Maame A D Boakye
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF-ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Nava P Rijal
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF-ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Udhab Adhikari
- Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF-ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC 27411, USA.
| | - Narayan Bhattarai
- Department of Chemical, Biological, and Bioengineering, North Carolina A&T State University, Greensboro, NC 27411, USA.
- NSF-ERC for Revolutionizing Metallic Biomaterials, North Carolina A&T State University, Greensboro, NC 27411, USA.
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70
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Wang X, Yu DG, Li XY, Bligh SA, Williams GR. Electrospun medicated shellac nanofibers for colon-targeted drug delivery. Int J Pharm 2015; 490:384-90. [DOI: 10.1016/j.ijpharm.2015.05.077] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 05/29/2015] [Accepted: 05/30/2015] [Indexed: 12/24/2022]
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71
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Zhi X, Wang Y, Li P, Yuan J, Shen J. Preparation of keratin/chlorhexidine complex nanoparticles for long-term and dual stimuli-responsive release. RSC Adv 2015. [DOI: 10.1039/c5ra16253j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Nanoscale polyion complex formation via the electrostatic complexation of a polyelectrolyte and a charged drug is the most convenient method for building a drug delivery system that simultaneously realizes the carrier preparation and drug embedding.
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Affiliation(s)
- Xuelian Zhi
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
- China
| | - Yanfang Wang
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
- China
| | - Pengfei Li
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
- China
| | - Jiang Yuan
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
- China
| | - Jian Shen
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
- China
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