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He S, Wen H, Yao N, Wang L, Huang J, Li Z. A Sustained-Release Nanosystem with MRSA Biofilm-Dispersing and -Eradicating Abilities Accelerates Diabetic Ulcer Healing. Int J Nanomedicine 2023; 18:3951-3972. [PMID: 37489140 PMCID: PMC10363391 DOI: 10.2147/ijn.s410996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023] Open
Abstract
Introduction Drug-resistant bacterial infections and biofilm formation play important roles in the pathogenesis of diabetic refractory wounds. Tea tree oil (TTO) exhibits antimicrobial, antimycotic, and antiviral activities, especially against common clinically resistant strains, such as methicillin-resistant Staphylococcus aureus (MRSA), making it a potential natural antimicrobial for the treatment of acute and chronic wounds. However, TTO is insoluble in water, volatile, light-sensitive, and cytotoxic. While previous macroscopic studies have focused on sterilization with TTO, none have sought to alter its structure or combine it with other materials to achieve sustained release. Methods Electrospun TTO nanoliposomes (TTO-NLs), arranged linearly via high-pressure homogenization, could stabilize the structure and performance of TTO to achieve slow drug release. Herein, we established a composite nano-sustained release system, TTO-NL/polyvinyl alcohol/chitosan (TTO-NL@PCS), using high-voltage electrospinning. Results Compared with the control, TTO-NL@PCS exhibits higher concentrations of the active TTO drug components, terpinen-4-ol and 1,8-cineole. Owing to its increased stability and slow release, early exposure to TTO-NL@PCS increases the abundance of reactive oxygen species in vitro, ultimately causing the biofilm to disperse and completely killing MRSA without inducing cytotoxic effects to the host. Moreover, in BKS-Leprem2Cd479/Gpt mice with a whole-layer skin infection, untargeted metabolomics analysis of wound exudates reveals upregulated PGF2α/FP receptor signaling and interleukin (IL)-1β and IL-6 expression following application of the composite system. The composite also ameliorates the chemotaxis disorder in early treatment and attenuates the wound inflammatory response during the repair stage of diabetic inflammatory wounds, and upregulates VEGF expression in the wound bed. Conclusion TTO-NL@PCS demonstrates the remarkable potential for accelerating diabetic and MRSA-infected wound healing.
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Affiliation(s)
- Shan He
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Huangding Wen
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
| | - Nannan Yao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061000, People’s Republic of China
| | - Lu Wang
- Department of Neurology, Hebei General Hospital, Shijiazhuang, 050000, People’s Republic of China
| | - Junqun Huang
- Department of Anaesthesia, The Seventh Affiliated Hospital, Southern Medical University, Foshan, 528000, People’s Republic of China
| | - Zhiqing Li
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People’s Republic of China
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Mousa HM, Ali MG, Rezk AI, Nasr EA, Hussein KH. Development of conductive polymeric nanofiber patches for cardiac tissue engineering application. J Appl Polym Sci 2022. [DOI: 10.1002/app.52757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hamouda M. Mousa
- Department of Mechanical Engineering, Faculty of Engineering South Valley University Qena Egypt
| | - Mustafa Ghazali Ali
- Department of Mechanical Engineering, Faculty of Engineering South Valley University Qena Egypt
| | - Abdelrahman I. Rezk
- Department of Bionanosystem Engineering Jeonbuk National University Jeonju Jeonbuk Republic of Korea
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School Jeonbuk National University Jeonju Republic of Korea
| | - Emad Abouel Nasr
- Department of Industrial Engineering, College of Engineering King Saud University Riyadh Saudi Arabia
| | - Kamal Hany Hussein
- Center for Biological Engineering, Wolfson School of Mechanical, Electrical and Manufacturing Engineering Loughborough University Loughborough Leicestershire UK
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Maliszewska I, Czapka T. Electrospun Polymer Nanofibers with Antimicrobial Activity. Polymers (Basel) 2022; 14:polym14091661. [PMID: 35566830 PMCID: PMC9103814 DOI: 10.3390/polym14091661] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023] Open
Abstract
Nowadays, nanofibers with antimicrobial activity are of great importance due to the widespread antibiotic resistance of many pathogens. Electrospinning is a versatile method of producing ultrathin fibers with desired properties, and this technique can be optimized by controlling parameters such as solution/melt viscosity, feeding rate, and electric field. High viscosity and slow feeding rate cause blockage of the spinneret, while low viscosity and high feeding rate result in fiber discontinuities or droplet formation. The electric field must be properly set because high field strength shortens the solidification time of the fluid streams, while low field strength is unable to form the Taylor cone. Environmental conditions, temperature, and humidity also affect electrospinning. In recent years, significant advances have been made in the development of electrospinning methods and the engineering of electrospun nanofibers for various applications. This review discusses the current research on the use of electrospinning to fabricate composite polymer fibers with antimicrobial properties by incorporating well-defined antimicrobial nanoparticles (silver, titanium dioxide, zinc dioxide, copper oxide, etc.), encapsulating classical therapeutic agents (antibiotics), plant-based bioactive agents (crude extracts, essential oils), and pure compounds (antimicrobial peptides, photosensitizers) in polymer nanofibers with controlled release and anti-degradation protection. The analyzed works prove that the electrospinning process is an effective strategy for the formation of antimicrobial fibers for the biomedicine, pharmacy, and food industry.
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Affiliation(s)
- Irena Maliszewska
- Department of Organic and Medicinal Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland
- Correspondence: (I.M.); (T.C.)
| | - Tomasz Czapka
- Department of Electrical Engineering Fundamentals, Wrocław University of Science and Technology, 50-370 Wrocław, Poland
- Correspondence: (I.M.); (T.C.)
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Shalchy F, Lovell C, Bhaskar A. Hierarchical porosity in additively manufactured bioengineering scaffolds: Fabrication & characterisation. J Mech Behav Biomed Mater 2020; 110:103968. [PMID: 32745973 DOI: 10.1016/j.jmbbm.2020.103968] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 10/23/2022]
Abstract
Biomedical scaffolds with a high degree of porosity are known to facilitate the growth of healthy functioning tissues. In this study, scaffolds with hierarchical porosity are manufactured and their mechanical and thermal properties are characterised. Multi-scale porosity is achieved in scaffolds fabricated by Fused Deposition Modelling (FDM) in a novel way. Random intrinsic porosity at micron length scale obtained from particulate leaching is combined with the structured extrinsic porosity at millimeter length scales afforded by controlling the spacing between the struts. Polylactic acid (PLA) is blended with Polyvinyl alcohol (PVA) and an inorganic sacrificial phase, sodium chloride (NaCl), to produce pores at length scales of up to two orders of magnitude smaller than the inter-filament voids within 3D printed lattices. The specific elastic modulus and specific strength are maximised by optimising the polymer blends. The porosity level and pore size distribution of the foamy filaments within lattices are quantified statistically. Compression tests are performed on the porous samples and the observed mechanical response is attributed to the microstructure and density. Simple cellular solid models that possess power law are used to explain the measured trends and the dependence is associated with various mechanisms of elastic deformation of the cell walls. The relationship between pore architecture, pore connectivity, the blend material composition, and mechanical response of produced foams is brought out. Foams obtained using the PLA:PVA:NaCl 42%-18%-40% material blends show relatively high specific elastic modulus, specific strength and strain at failure. A quadratic power law relating the Young's modulus with the relative density is experimentally obtained, which is consistent with theoretical models for open-cell foams. 3D printing with blends, followed by leaching, produces structures with cumulative intrinsic and extrinsic porosity as high as 80%, in addition to good mechanical integrity.
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Affiliation(s)
- Faezeh Shalchy
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK.
| | | | - Atul Bhaskar
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
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Hamad K, Kaseem M, Ayyoob M, Joo J, Deri F. Polylactic acid blends: The future of green, light and tough. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.07.001] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Yusof MR, Shamsudin R, Abdullah Y, Yalcinkaya F, Yaacob N. Electrospinning of carboxymethyl starch/poly(L-lactide acid) composite nanofiber. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4292] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Mohd Reusmaazran Yusof
- School of Applied Physics, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 Bangi Selangor Malaysia
| | - Roslinda Shamsudin
- School of Applied Physics, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 Bangi Selangor Malaysia
| | - Yusof Abdullah
- Material Technology Group, Industrial Technology Division; Malaysian Nuclear Agency; Bangi 43300 Kajang Selangor Malaysia
| | - Fatma Yalcinkaya
- Institute for Nanomaterials, Advanced Technologies and Innovation, Department of Nanotechnology and Informatics; Technical University of Liberec; Studentska 1402/2 46117 Liberec The Czech Republic
| | - Norzita Yaacob
- School of Applied Physics, Faculty of Science and Technology; Universiti Kebangsaan Malaysia; 43600 Bangi Selangor Malaysia
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Liu Y, Wang S, Zhang R. Composite poly(lactic acid)/chitosan nanofibrous scaffolds for cardiac tissue engineering. Int J Biol Macromol 2017; 103:1130-1137. [PMID: 28528953 DOI: 10.1016/j.ijbiomac.2017.05.101] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 04/15/2017] [Accepted: 05/16/2017] [Indexed: 01/17/2023]
Abstract
Fibrous scaffolds with different ratios of poly (lactic acid) (PLA) and chitosan were fabricated by conventional electrospinning. After crosslinking by the glutaraldehyde vapor, the structure, mechanical properties, hydrophilicity, and in-fiber chemical interactions of the scaffolds were investigated. We found that the fiber diameter decreased with the concentration of chitosan, while mechanical properties and hydrophilicity improved. In addition, we found that scaffolds with aligned fibers have higher mechanical strength and biocompatibility than scaffolds with randomly oriented fibers. In particular, scaffolds with aligned fibers with PLA:chitosan ratios of 7:1 was found to support cardiomyocyte viability, elicit cell elongation, and enhance production of sarcomeric α-actinin and troponin I. Collectively, the data indicate that composite scaffolds consisting of PLA/chitosan fibers have great potential for engineering cardiac tissue, and for accelerating the regeneration of myocardia.
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Affiliation(s)
- Yaowen Liu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, PR China; School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
| | - Shuyao Wang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, PR China
| | - Rong Zhang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, PR China
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Wu Y, Lin W, Hao H, Li J, Luo F, Tan H. Nanofibrous scaffold from electrospinning biodegradable waterborne polyurethane/poly(vinyl alcohol) for tissue engineering application. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:648-663. [PMID: 28277009 DOI: 10.1080/09205063.2017.1294041] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A series of nanofibrous scaffolds, free of organic solvents, are prepared by electrospinning biodegradable waterborne polyurethane (BWPU) emulsion blending with aqueous poly(vinyl alcohol)(PVA). Tuning the proration of BWPU to PVA, various nanofibers with diameter from 370 to 964 nm are obtained. Strong intermolecular interaction existing between them benefits to the electrospun of BWPU emulsion, which is demonstrated by dynamic thermomechanical analysis and Fourier transform infrared spectroscopy. The nontoxic nanofibrous scaffolds with porous structure, which is similar to the natural extracellular matrix, favor to the attachment and proliferation of the L929 fibroblasts. Thus, the scaffolds are promising to be used as biomaterials for many natural tissues repair.
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Affiliation(s)
- Yingke Wu
- a State Key Laboratory of Polymer Materials Engineering , College of Polymer Science and Engineering, Sichuan University , Chengdu , China
| | - Weiwei Lin
- a State Key Laboratory of Polymer Materials Engineering , College of Polymer Science and Engineering, Sichuan University , Chengdu , China
| | - Hongye Hao
- a State Key Laboratory of Polymer Materials Engineering , College of Polymer Science and Engineering, Sichuan University , Chengdu , China
| | - Jiehua Li
- a State Key Laboratory of Polymer Materials Engineering , College of Polymer Science and Engineering, Sichuan University , Chengdu , China
| | - Feng Luo
- a State Key Laboratory of Polymer Materials Engineering , College of Polymer Science and Engineering, Sichuan University , Chengdu , China
| | - Hong Tan
- a State Key Laboratory of Polymer Materials Engineering , College of Polymer Science and Engineering, Sichuan University , Chengdu , China
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Ramot Y, Haim-Zada M, Domb AJ, Nyska A. Biocompatibility and safety of PLA and its copolymers. Adv Drug Deliv Rev 2016; 107:153-162. [PMID: 27058154 DOI: 10.1016/j.addr.2016.03.012] [Citation(s) in RCA: 285] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 03/24/2016] [Accepted: 03/26/2016] [Indexed: 12/20/2022]
Abstract
PLA and its copolymers are commonly used for a wide variety of applications. While they are considered to be biocompatible, side effects resulting from their implantation have been reported. The implantation of biomaterials always results in a foreign body reaction. Such a reaction has also been reported following PLA and its copolymers. This article reviews the process of inflammatory reaction that is to be expected following implantation of PLA, and it highlights specific cases in which the inflammatory reaction can result in safety concerns. The authors also review selected cases from different medical fields to demonstrate possible clinical side effects resulting from its use.
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10
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Saini P, Arora M, Kumar MR. Poly(lactic acid) blends in biomedical applications. Adv Drug Deliv Rev 2016; 107:47-59. [PMID: 27374458 DOI: 10.1016/j.addr.2016.06.014] [Citation(s) in RCA: 240] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 05/23/2016] [Accepted: 06/17/2016] [Indexed: 02/07/2023]
Abstract
Poly(lactic acid) (PLA) has become a "material of choice" in biomedical applications for its ability to fulfill complex needs that typically include properties such as biocompatibility, biodegradability, mechanical strength, and processability. Despite the advantages of pure PLA in a wider spectrum of applications, it is limited by its hydrophobicity, low impact toughness, and slow degradation rate. Blending PLA with other polymers offers a convenient option to enhance its properties or generate novel properties for target applications without the need to develop new materials. PLA blends with different natural and synthetic polymers have been developed by solvent and melt blending techniques and further processed based on end-use applications. A variety of PLA blends has been explored for biomedical applications such as drug delivery, implants, sutures, and tissue engineering. This review discusses the opportunities for PLA blends in the biomedical arena, including the overview of blending and postblend processing techniques and the applications of PLA blends currently in use and under development.
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11
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Structure and surface properties of chitosan/PEO/gelatin nanofibrous membrane. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-015-0906-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Kaplan J, Grinstaff M. Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications. J Vis Exp 2015:e53117. [PMID: 26383018 DOI: 10.3791/53117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Superhydrophobic materials, with surfaces possessing permanent or metastable non-wetted states, are of interest for a number of biomedical and industrial applications. Here we describe how electrospinning or electrospraying a polymer mixture containing a biodegradable, biocompatible aliphatic polyester (e.g., polycaprolactone and poly(lactide-co-glycolide)), as the major component, doped with a hydrophobic copolymer composed of the polyester and a stearate-modified poly(glycerol carbonate) affords a superhydrophobic biomaterial. The fabrication techniques of electrospinning or electrospraying provide the enhanced surface roughness and porosity on and within the fibers or the particles, respectively. The use of a low surface energy copolymer dopant that blends with the polyester and can be stably electrospun or electrosprayed affords these superhydrophobic materials. Important parameters such as fiber size, copolymer dopant composition and/or concentration, and their effects on wettability are discussed. This combination of polymer chemistry and process engineering affords a versatile approach to develop application-specific materials using scalable techniques, which are likely generalizable to a wider class of polymers for a variety of applications.
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Affiliation(s)
- Jonah Kaplan
- Department of Biomedical Engineering, Boston University
| | - Mark Grinstaff
- Departments of Biomedical Engineering, Chemistry, and Medicine, Boston University;
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13
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Chitosan nanofibers fabricated by combined ultrasonic atomization and freeze casting. Carbohydr Polym 2015; 122:18-25. [DOI: 10.1016/j.carbpol.2014.12.080] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/28/2014] [Accepted: 12/29/2014] [Indexed: 11/22/2022]
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14
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Hardiansyah A, Tanadi H, Yang MC, Liu TY. Electrospinning and antibacterial activity of chitosan-blended poly(lactic acid) nanofibers. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0704-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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15
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Wang Q, Yang X, Ren M, Hu Y, Chen Q, Xing L, Meng C, Liu T. Effect of chitosan/type I collagen/gelatin composites in biocompatibility and nerve repair. Neural Regen Res 2015; 7:1179-84. [PMID: 25722712 PMCID: PMC4340036 DOI: 10.3969/j.issn.1673-5374.2012.15.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 04/24/2012] [Indexed: 11/18/2022] Open
Abstract
Chitosan, collagen I and gelatin were mixed in appropriate quantities to develop a new nerve repair material, with good arrangement and structure, as well as even aperture size. The composite material was sterilized by (60)Co irradiation for 24 hours prior to implantation in the right thigh of rats following sciatic nerve damage. Results showed that the material was nontoxic to the kidneys and the liver, and did not induce an inflammatory response in the muscles. The composite material enhanced the recovery of sciatic nerve damage in rats. These experimental findings indicate that the composite material offers good biocompatibility and has a positive effect on injured nerve rehabilitation.
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Affiliation(s)
- Qing Wang
- China-Japan Union Hospital, Jilin University, Changchun 130033, Jilin Province, China
| | - Xiaolei Yang
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Ming Ren
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Yulin Hu
- Department of Liver, Gall and Pancreas, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Qiang Chen
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Lei Xing
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Chunyang Meng
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Tiemei Liu
- China-Japan Union Hospital, Jilin University, Changchun 130033, Jilin Province, China
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Vaezifar S, Razavi S, Golozar MA, Esfahani HZ, Morshed M, Karbasi S. Characterization of PLGA/Chitosan Electrospun Nano-Biocomposite Fabricated by Two Different Methods. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2014.886244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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17
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Sudwilai T, Ng JJ, Boonkrai C, Israsena N, Chuangchote S, Supaphol P. Polypyrrole-coated electrospun poly(lactic acid) fibrous scaffold: effects of coating on electrical conductivity and neural cell growth. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1240-52. [PMID: 24933469 DOI: 10.1080/09205063.2014.926578] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Neuronal activities play critical roles in both neurogenesis and neural regeneration. In that sense, electrically conductive and biocompatible biomaterial scaffolds can be applied in various applications of neural tissue engineering. In this study, we fabricated a novel biomaterial for neural tissue engineering applications by coating electrospun poly(lactic acid) (PLA) nanofibers with a conducting polymer, polypyrole (PPy), via admicellar polymerization. Optimal conditions for polymerization and preparation of PPy-coated electrospun PLA nanofibers were obtained by comparing results from scanning electron microscopy, X-ray photoelectron spectrometer, and surface conductivity tests. In vitro cell culture experiments showed that PPy-coated electrospun PLA fibrous scaffold is not toxic. The scaffold could support attachment and migration of neural progenitor cells. Neurons derived from progenitor exhibited long neurite outgrowth under electrical stimulation. Our study concluded that PPy-coated electrospun PLA fibers had a good biocompatibility with neural progenitor cells and may serve as a promising material for controlling progenitor cell behaviors and enhancing neural repair.
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Affiliation(s)
- Thitima Sudwilai
- a Center of Excellence on Petrochemical and Materials Technology (PETROMAT) , Soi Chula 12, Phyathai Rd., Pathumwan, Bangkok 10330 , Thailand
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Jiang T, Deng M, James R, Nair LS, Laurencin CT. Micro- and nanofabrication of chitosan structures for regenerative engineering. Acta Biomater 2014; 10:1632-45. [PMID: 23851172 DOI: 10.1016/j.actbio.2013.07.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/31/2013] [Accepted: 07/01/2013] [Indexed: 11/24/2022]
Abstract
Repair and regeneration of human tissues and organs using biomaterials, cells and/or growth factors is the ultimate goal of tissue engineers. One of the grand challenges in this field is to closely mimic the structures and properties of native tissues. Regenerative engineering-the convergence of tissue engineering with advanced materials science, stem cell science, and developmental biology-represents the next valuable tool to overcome the challenges. This article reviews the recent progress in developing advanced chitosan structures using various fabrication techniques. These chitosan structures, together with stem cells and functional biomolecules, may provide a robust platform to gain insight into cell-biomaterial interactions and may function as excellent artificial extracellular matrices to regenerate complex human tissues and biological systems.
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Llorens E, del Valle LJ, Ferrán R, Rodríguez-Galán A, Puiggalí J. Scaffolds with tuneable hydrophilicity from electrospun microfibers of polylactide and poly(ethylene glycol) mixtures: morphology, drug release behavior, and biocompatibility. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0360-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nie W, Yu DG, Branford-White C, Shen XX, Zhu LM. Electrospun zein–PVP fibre composite and its potential medical application. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/1433075x11y.0000000013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- W Nie
- College of ChemistryChemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - D-G Yu
- College of Material Science and EngineeringUniversity of Shanghai for Science and Technology, Shanghai 200093, China
| | - C Branford-White
- Faculty of Life ScienceLondon Metropolitan University, London N7 8DB, UK
| | - X-X Shen
- College of ChemistryChemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - L-M Zhu
- College of ChemistryChemical Engineering and Biotechnology, Donghua University, Shanghai, China
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Li Y, Chen F, Nie J, Yang D. Electrospun poly(lactic acid)/chitosan core-shell structure nanofibers from homogeneous solution. Carbohydr Polym 2012; 90:1445-51. [PMID: 22944401 DOI: 10.1016/j.carbpol.2012.07.013] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/02/2012] [Accepted: 07/03/2012] [Indexed: 10/28/2022]
Abstract
The core-shell structure nanofibers of poly(lactic acid)/chitosan with different weight ratios were successfully electrospun from homogeneous solution. The preparation process was more simple and effective than double-needle electrospinning. The nanofibers were obtained with chitosan in shell while poly(lactic acid) in core attributing to phase separation, which were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and energy dispersive spectrometer (EDS). The electrospun nanofibrous membrane was evaluated in vitro by using mouse fibroblasts (L929) as reference cell lines. Cell culture results indicated that these materials were good in promoting cell growth and attachment, thus they could be used for tissue engineering and wound healing dressing.
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Affiliation(s)
- Yajing Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Chuysinuan P, Pavasant P, Supaphol P. Preparation and characterization of caffeic acid-grafted electrospun poly(L-lactic acid) fiber mats for biomedical applications. ACS APPLIED MATERIALS & INTERFACES 2012; 4:3031-3040. [PMID: 22577837 DOI: 10.1021/am300404v] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Caffeic acid (CA) was chemically immobilized onto the surfaces of the individual electrospun poly(l-lactic acid) (PLLA) fibers to enhance the hydrophilicity and impart the antioxidant activity to the obtained fibrous membranes. This was done in two sequential steps. First, amino groups were covalently introduced onto the surfaces through the reaction with 1,6-hexamethylenediamine (HMD). In the second step, the amino moieties reacted with CA, which had been preactivated sequentially with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) and N-hydroxysuccinimide (NHS). The success of the reactions was confirmed by the ninhydrin assay and X-ray photoelectron spectroscopic analysis (XPS). Indirect cytotoxicity evaluation with murine dermal fibroblasts (L929) and human dermal fibroblasts (HDFa) revealed that the neat and the modified PLLA fibrous matrices released no substances in the levels that were harmful to the cells. Direct culturing of HDFa on these fibrous substrates indicated that they supported the proliferation of the cells on days 2 and 3 very well and that the CA-immobilized substrates exhibited the highest cell viability. Lastly, the antioxidant activity of the CA-immobilized substrates, as revealed by the 1,1-diphenyl-2-picryldrazyl (DPPH) radical scavenging assay, was as high as 88% on average.
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Affiliation(s)
- Piyachat Chuysinuan
- The Petroleum Petrochemical College, The Center of Excellence on Petrochemical and Materials Technology, ‡Department of Anatomy, Faculty of Dentistry, Chulalongkorn University , Bangkok 10330, Thailand
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Torres-Giner S, Gimeno-Alcañiz JV, Ocio MJ, Lagaron JM. Optimization of electrospun polylactide-based ultrathin fibers for osteoconductive bone scaffolds. J Appl Polym Sci 2011. [DOI: 10.1002/app.34208] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Rogovina SZ, Alexanyan CV, Prut EV. Biodegradable blends based on chitin and chitosan: Production, structure, and properties. J Appl Polym Sci 2011. [DOI: 10.1002/app.33477] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Supaphol P, Suwantong O, Sangsanoh P, Srinivasan S, Jayakumar R, Nair SV. Electrospinning of Biocompatible Polymers and Their Potentials in Biomedical Applications. BIOMEDICAL APPLICATIONS OF POLYMERIC NANOFIBERS 2011. [DOI: 10.1007/12_2011_143] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Fabrication of electrospun polycaprolactone biocomposites reinforced with chitosan for the proliferation of mesenchymal stem cells. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.09.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Haider S, Al-Masry WA, Bukhari N, Javid M. Preparation of the chitosan containing nanofibers by electrospinning chitosan-gelatin complexes. POLYM ENG SCI 2010. [DOI: 10.1002/pen.21721] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jayakumar R, Prabaharan M, Nair S, Tamura H. Novel chitin and chitosan nanofibers in biomedical applications. Biotechnol Adv 2010; 28:142-50. [DOI: 10.1016/j.biotechadv.2009.11.001] [Citation(s) in RCA: 739] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2009] [Revised: 10/27/2009] [Accepted: 11/04/2009] [Indexed: 01/19/2023]
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Lee KY, Jeong L, Kang YO, Lee SJ, Park WH. Electrospinning of polysaccharides for regenerative medicine. Adv Drug Deliv Rev 2009; 61:1020-32. [PMID: 19643155 DOI: 10.1016/j.addr.2009.07.006] [Citation(s) in RCA: 298] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2009] [Accepted: 07/16/2009] [Indexed: 10/20/2022]
Abstract
Electrospinning techniques enable the production of continuous fibers with dimensions on the scale of nanometers from a wide range of natural and synthetic polymers. The number of recent studies regarding electrospun polysaccharides and their derivatives, which are potentially useful for regenerative medicine, is increasing dramatically. However, difficulties regarding the processibility of the polysaccharides (e.g., poor solubility and high surface tension) have limited their application. In this review, we summarize the characteristics of various polysaccharides such as alginate, cellulose, chitin, chitosan, hyaluronic acid, starch, dextran, and heparin, which are either currently being used or have potential to be used for electrospinning. The recent progress of nanofiber matrices electrospun from polysaccharides and their biomedical applications in tissue engineering, wound dressings, drug delivery, and enzyme immobilization are discussed.
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Preparation and characterization of nanofibrous membranes of poly(D,L-lactic acid)/chitin blend for guided tissue regenerative barrier. Macromol Res 2009. [DOI: 10.1007/bf03218928] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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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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Chuysinuan P, Chimnoi N, Techasakul S, Supaphol P. Gallic Acid-Loaded Electrospun Poly(L
-Lactic Acid) Fiber Mats and their Release Characteristic. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200800614] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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37
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Preparation of the electrospun chitosan nanofibers and their applications to the adsorption of Cu(II) and Pb(II) ions from an aqueous solution. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2008.11.046] [Citation(s) in RCA: 324] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Chuenjitkuntaworn B, Supaphol P, Pavasant P, Damrongsri D. Electrospun poly(L-lactic acid)/hydroxyapatite composite fibrous scaffolds for bone tissue engineering. POLYM INT 2009. [DOI: 10.1002/pi.2712] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Neamnark A, Sanchavanakit N, Pavasant P, Rujiravanit R, Supaphol P. In vitro biocompatibility of electrospun hexanoyl chitosan fibrous scaffolds towards human keratinocytes and fibroblasts. Eur Polym J 2008. [DOI: 10.1016/j.eurpolymj.2008.04.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Skotak M, Leonov AP, Larsen G, Noriega S, Subramanian A. Biocompatible and Biodegradable Ultrafine Fibrillar Scaffold Materials for Tissue Engineering by Facile Grafting of l-Lactide onto Chitosan. Biomacromolecules 2008; 9:1902-8. [DOI: 10.1021/bm800158c] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maciej Skotak
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Nebraska 68588-0643, and LNK Chemsolutions, LLC, 4701 Innovation Drive, Lincoln, Nebraska 68521
| | - Alexei P. Leonov
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Nebraska 68588-0643, and LNK Chemsolutions, LLC, 4701 Innovation Drive, Lincoln, Nebraska 68521
| | - Gustavo Larsen
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Nebraska 68588-0643, and LNK Chemsolutions, LLC, 4701 Innovation Drive, Lincoln, Nebraska 68521
| | - Sandra Noriega
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Nebraska 68588-0643, and LNK Chemsolutions, LLC, 4701 Innovation Drive, Lincoln, Nebraska 68521
| | - Anuradha Subramanian
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Nebraska 68588-0643, and LNK Chemsolutions, LLC, 4701 Innovation Drive, Lincoln, Nebraska 68521
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Xu C, Pan H, Jiang H, Tang G, Chen W. Biocompatibility evaluation of N,O-hexanoyl chitosan as a biodegradable hydrophobic polycation for controlled drug release. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2008; 19:2525-2532. [PMID: 18266083 DOI: 10.1007/s10856-008-3392-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2007] [Accepted: 01/18/2008] [Indexed: 05/25/2023]
Abstract
N,O-hexanoyl chitosan (HC) displayed unique properties of excellent processibility, solubility in common organic solvents and cationic characteristics, thereby might find versatile applicaions for biomedical engineering. In this study, the biocompatibility of HC was evaluated. The effect of HC on dermal fibroblast attachment, proliferation and viability was examined in vitro, in comparison with poly(lactide-co-glycolide) (PLGA) and chitosan. The in vivo tissue response to HC was compared with PLGA implanted subcutaneously; the weight loss of the implant materials was also measured during the degradation process. It was found that HC had no deleterious effect on the viability of dermal fibroblast. In vivo, HC displayed a favorable tissue response profile compared with PLGA, with significantly less inflammation and fibrosis. The erosion rate of HC could be modulated by changing the degree of substitution of hexanoyl groups in HC.
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Affiliation(s)
- Chaonan Xu
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P.R. China
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Torres‐Giner S, Ocio M, Lagaron J. Development of Active Antimicrobial Fiber‐Based Chitosan Polysaccharide Nanostructures using Electrospinning. Eng Life Sci 2008. [DOI: 10.1002/elsc.200700066] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Rinaudo M. Main properties and current applications of some polysaccharides as biomaterials. POLYM INT 2008. [DOI: 10.1002/pi.2378] [Citation(s) in RCA: 672] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Huang XJ, Ge D, Xu ZK. Preparation and characterization of stable chitosan nanofibrous membrane for lipase immobilization. Eur Polym J 2007. [DOI: 10.1016/j.eurpolymj.2007.06.010] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Greiner A, Wendorff J. Elektrospinnen: eine faszinierende Methode zur Präparation ultradünner Fasern. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604646] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Greiner A, Wendorff JH. Electrospinning: A Fascinating Method for the Preparation of Ultrathin Fibers. Angew Chem Int Ed Engl 2007; 46:5670-703. [PMID: 17585397 DOI: 10.1002/anie.200604646] [Citation(s) in RCA: 2135] [Impact Index Per Article: 125.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Electrospinning is a highly versatile method to process solutions or melts, mainly of polymers, into continuous fibers with diameters ranging from a few micrometers to a few nanometers. This technique is applicable to virtually every soluble or fusible polymer. The polymers can be chemically modified and can also be tailored with additives ranging from simple carbon-black particles to complex species such as enzymes, viruses, and bacteria. Electrospinning appears to be straightforward, but is a rather intricate process that depends on a multitude of molecular, process, and technical parameters. The method provides access to entirely new materials, which may have complex chemical structures. Electrospinning is not only a focus of intense academic investigation; the technique is already being applied in many technological areas.
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Affiliation(s)
- Andreas Greiner
- Department of Chemistry, Philipps-Universität Marburg, 35032 Marburg, Germany.
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