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Lao M, Wang Y, Li X, Li J, Ning X, Yin S, Deng X. Effect of Specific Surface Area and Hydrophobicity of Electrospun Nanofibers on the Sustained Release Performance of Diclofenac Sodium. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39018474 DOI: 10.1021/acs.langmuir.4c01909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
Nanofibers produced by electrospinning are suitable options for slow-release materials. Diclofenac sodium (DS) is a nonsteroidal anti-inflammatory medication with a brief half-life that can serve as an effective sustained-release agent. This paper presents a novel method for producing DS-sustained release nanofibers by electrostatic spinning processes. During the preparation, the slow-release capabilities of biodegradable materials poly(lactic acid) (PLA) and polycaprolactone (PCL) are investigated. A composite drug-carrying scaffold is prepared to enhance the sustained-release performance. The sustained release ability is affected by the specific surface area of the nanofibers and the hydrophobicity of the polymer. The findings indicate that the composite nanofiber with a PLA/PCL ratio of 1:1 demonstrates the most effective sustained-release performance. The release rate is mostly influenced by the hydrophobicity of the polymer at this point. Sustained-release kinetic simulations were performed and revealed that the release of nanofibers follows a first-order release paradigm. This work presents a straightforward approach for creating a sustained-release formulation of DS.
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Affiliation(s)
- Min Lao
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
| | - Yingjie Wang
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
| | - Xin Li
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
| | - Junlang Li
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
| | - Xin Ning
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
| | - Shaofeng Yin
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
| | - Xiaoting Deng
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China
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Zhao J, Liu X, Pu X, Shen Z, Xu W, Yang J. Preparation Method and Application of Porous Poly(lactic acid) Membranes: A Review. Polymers (Basel) 2024; 16:1846. [PMID: 39000701 PMCID: PMC11244136 DOI: 10.3390/polym16131846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/09/2024] [Accepted: 06/12/2024] [Indexed: 07/17/2024] Open
Abstract
Porous membrane technology has garnered significant attention in the fields of separation and biology due to its remarkable contributions to green chemistry and sustainable development. The porous membranes fabricated from polylactic acid (PLA) possess numerous advantages, including a low relative density, a high specific surface area, biodegradability, and excellent biocompatibility. As a result, they exhibit promising prospects for various applications, such as oil-water separation, tissue engineering, and drug release. This paper provides an overview of recent research advancements in the fabrication of PLA membranes using electrospinning, the breath-figure method, and the phase separation method. Firstly, the principles of each method are elucidated from the perspective of pore formation. The correlation between the relevant parameters and pore structure is discussed and summarized, subsequently followed by a comparative analysis of the advantages and limitations of each method. Subsequently, this article presents the diverse applications of porous PLA membranes in tissue engineering, oil-water separation, and other fields. The current challenges faced by these membranes, however, encompass inadequate mechanical strength, limited production efficiency, and the complexity of pore structure control. Suggestions for enhancement, as well as future prospects, are provided accordingly.
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Affiliation(s)
- Jinxing Zhao
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
| | - Xianggui Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Xuelian Pu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
| | - Zetong Shen
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
| | - Wenqiang Xu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
| | - Jian Yang
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
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3
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Vargas-Osorio Z, González Castillo EI, Mutlu N, Vidomanová E, Michálek M, Galusek D, Boccaccini AR. Tailorable mechanical and degradation properties of KCl-reticulated and BDDE-crosslinked PCL/chitosan/κ-carrageenan electrospun fibers for biomedical applications: Effect of the crosslinking-reticulation synergy. Int J Biol Macromol 2024; 265:130647. [PMID: 38460627 DOI: 10.1016/j.ijbiomac.2024.130647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
The development of intricated and interconnected porous mats is desired for many applications in biomedicine and other relevant fields. The mats that comprise the use of natural, bioactive, and biodegradable polymers are the focus of current research activities. In the present work, crosslinked fibers with improved characteristics were produced by incorporating 1,4-butanediol diglycidyl ether (BDDE) into a polymer formulation containing polycaprolactone (PCL), chitosan (CS), and κappa-carrageenan (κ-C). A slight variation of formic acid (FA)/acetic acid (AA) ratio used as a solvent system, significantly affected the characteristics of the produced fiber mats. Both polysaccharides and BDDE played a major role in tailoring mechanical properties when fibrous scaffolds were reticulated under KCl-mediated basic conditions for determined periods of time at 50 °C. In vitro biological assessment of the electrospun fiber mats revealed proliferation of MC3T3-E1 cells when incubated for 1 and 7 days. After staining the cells with 4',6-diamidino-2-phenylindole (DAPI)/rhodamine phalloidin an autofluorescence response was observed by fluorescence microscopy in the scaffold manufactured using a solvent with higher FA/AA ratio due to the formation of microfibers. The results demonstrated the potential of the BDDE-crosslinked PCL/CS/κ-C electrospun fibers as promising materials for biomedical applications that may include soft and bone tissue regeneration.
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Affiliation(s)
- Zulema Vargas-Osorio
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 910 58 Erlangen, Germany.
| | - Eduin I González Castillo
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 910 58 Erlangen, Germany; AO Research Institute Davos, Clavadelerstrasse 8, 7270 Davos Platz, Switzerland
| | - Nurshen Mutlu
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 910 58 Erlangen, Germany
| | - Eva Vidomanová
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia
| | - Martin Michálek
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia
| | - Dušan Galusek
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; Joint Glass Centre of the IIC SAS, TnUAD, FChPT STU, Študentská 2, 911 50 Trenčín, Slovakia
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 910 58 Erlangen, Germany.
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Maleki M, Karimi-Soflou R, Karkhaneh A. Raspberry-like PLA/PGS biodegradable microparticles with urethane linkages: Unlocking tailored release of magnesium ions and oxygen for bone tissue engineering. Int J Pharm 2024; 651:123760. [PMID: 38163525 DOI: 10.1016/j.ijpharm.2023.123760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
Designing biodegradable microparticles with finely controlled release properties for tissue engineering systems remains a significant scientific challenge. This study introduces a novel approach by fabricating urethane-linked PLA/PGS microparticles loaded with magnesium peroxide. The microparticles offer potential applications in bone tissue engineering due to their ability to provide a controlled release of oxygen and magnesium ions while maintaining physiological pH. The PGS pre-polymer was synthesized via polycondensation and characterized using FTIR, 1H NMR, and GPC. Microparticle morphology transformed from smooth to raspberry-like upon incorporation of PGS, as observed by SEM. Microparticle size was tuned by varying PGS and PLA concentrations. FTIR analysis confirmed the successful formation of urethane links within the microparticles. MgO2-loaded PLA/PGS microparticles exhibited sustained release of dissolved oxygen and magnesium ions for 21 days while maintaining physiological pH better than PLA microparticles. Cell viability assays confirmed microparticle cytocompatibility, and ALP and Alizarin red assays demonstrated their ability to induce osteogenic differentiation. These findings highlight the potential of pH-controlled MgO2-loaded microparticles as an effective system for bone tissue engineering. In conclusion, this study presents a novel approach to designing biodegradable microparticles with adjustable release properties for bone tissue engineering. The urethane-based MgO2-loaded microparticles provide controlled release of oxygen and magnesium ions and regulate the environment's pH, making them a promising system for bone tissue engineering applications.
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Affiliation(s)
- Mina Maleki
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Reza Karimi-Soflou
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Akbar Karkhaneh
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran.
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Ranjbar N, Bakhshandeh B, Pennisi CP. Electroconductive Nanofibrous Scaffolds Enable Neuronal Differentiation in Response to Electrical Stimulation without Exogenous Inducing Factors. Bioengineering (Basel) 2023; 10:1438. [PMID: 38136029 PMCID: PMC10740536 DOI: 10.3390/bioengineering10121438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Among the various biochemical and biophysical inducers for neural regeneration, electrical stimulation (ES) has recently attracted considerable attention as an efficient means to induce neuronal differentiation in tissue engineering approaches. The aim of this in vitro study was to develop a nanofibrous scaffold that enables ES-mediated neuronal differentiation in the absence of exogenous soluble inducers. A nanofibrous scaffold composed of polycaprolactone (PCL), poly-L-lactic acid (PLLA), and single-walled nanotubes (SWNTs) was fabricated via electrospinning and its physicochemical properties were investigated. The cytocompatibility of the electrospun composite with the PC12 cell line and bone marrow-derived mesenchymal stem cells (BMSCs) was investigated. The results showed that the PCL/PLLA/SWNT nanofibrous scaffold did not exhibit cytotoxicity and supported cell attachment, spreading, and proliferation. ES was applied to cells cultured on the nanofibrous scaffolds at different intensities and the expression of the three neural markers (Nestin, Microtubule-associated protein 2, and β tubulin-3) was evaluated using RT-qPCR analysis. The results showed that the highest expression of neural markers could be achieved at an electric field intensity of 200 mV/cm, suggesting that the scaffold in combination with ES can be an efficient tool to accelerate neural differentiation in the absence of exogenous soluble inducers. This has important implications for the regeneration of nerve injuries and may provide insights for further investigations of the mechanisms underlying ES-mediated neuronal commitment.
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Affiliation(s)
- Nika Ranjbar
- Department of Biotechnology, College of Science, University of Tehran, Tehran 14155-6455, Iran
| | - Behnaz Bakhshandeh
- Department of Biotechnology, College of Science, University of Tehran, Tehran 14155-6455, Iran
| | - Cristian Pablo Pennisi
- Regenerative Medicine Group, Department of Health Science and Technology, Aalborg University, DK-9260 Gistrup, Denmark
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Zhang S, Yu F, Chen J, Yan D, Gong D, Chen L, Chen J, Yao Q. A thin film comprising silk peptide and cellulose nanofibrils implanting on the electrospun poly(lactic acid) fibrous scaffolds for biomedical reconstruction. Int J Biol Macromol 2023; 251:126209. [PMID: 37567522 DOI: 10.1016/j.ijbiomac.2023.126209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/08/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023]
Abstract
Conjunctival reconstruction using biocompatible polymers constitutes an effective treatment for conjunctival scarring and associated visual impairment. In this work, a thin film comprising silk peptide (SP), cellulose nanofibrils (CNF) and Ag nanoparticles (AgNPs) that implanted on the poly(lactic acid) (PLA) electrospun fibrous membranes (EFMs) was designed for biomedical reconstruction. SP and CNF as thin films can improve the surface hydrophilicity of the as-prepared scaffolds, which synergistically enhanced the biocompatibility. In in vivo experiments, the developed PLA EFMs modified with 3 wt% SP/CNF/AgNPs could be easily manipulated and transplanted onto conjunctival defects in rabbits, consequently accelerating the structural and functional restoration of the ocular surface in 12 days. Additionally, incorporation of 0.30 mg/g AgNPs efficiently reduced the topical application of antibiotics without causing infections. Thus, these resultant scaffolds could not only serve as useful alternatives for conjunctival engineering, but also prevent infections effectively with a very low content of AgNPs.
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Affiliation(s)
- Siyi Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Fei Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Jin Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Dan Yan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Danni Gong
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Liangbo Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China
| | - Junzhao Chen
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China.
| | - Qinke Yao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 200011, China.
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Jurado-Contreras S, Navas-Martos FJ, Rodríguez-Liébana JA, La Rubia MD. Effect of Olive Pit Reinforcement in Polylactic Acid Biocomposites on Environmental Degradation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5816. [PMID: 37687509 PMCID: PMC10488360 DOI: 10.3390/ma16175816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023]
Abstract
Polylactic acid (PLA) is a biomaterial widely used as an alternative to petroleum-based polymeric matrices in plastic components. PLA-based biocomposites reinforced with lignocellulosic waste are currently receiving special attention owing to their mechanical properties, low toxicity, recyclability, and biodegradability. The influence of the percentage of waste on their properties and resistance to degradation are some of the points of great relevance. Therefore, a series of PLA-based biocomposites containing different percentages of olive pits (5, 15, 25 and 40% wt.) were manufactured and characterized both (a) immediately after manufacture and (b) after one year of storage under environmental conditions. The results obtained were analyzed to evaluate the influence of the incorporation of olive pits on the resistance to degradation (measured through Carbonyl Indices, CI), mechanical properties (tensile, flexural and impact strength), structure (Fourier Transform Infrared Spectroscopy, FT-IR; and, X-ray Diffraction, XRD), morphology (Scanning Electron Microscopy, SEM) and water absorption capacity of the manufactured materials. PLA degradation, corroborated by Differential Scanning Calorimetry (DSC), FT-IR, and XRD, resulted in a decrease in tensile and flexural strengths and an increase in the tensile and flexural moduli. This trend was maintained for the biocomposites, confirming that reinforcement promoted the PLA degradation.
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Affiliation(s)
- Sofía Jurado-Contreras
- Andaltec Technological Centre, Ampliación Polígono Industrial Cañada de la Fuente, C/Vilches 34, 23600 Martos, Spain; (S.J.-C.); (F.J.N.-M.); (J.A.R.-L.)
| | - Francisco J. Navas-Martos
- Andaltec Technological Centre, Ampliación Polígono Industrial Cañada de la Fuente, C/Vilches 34, 23600 Martos, Spain; (S.J.-C.); (F.J.N.-M.); (J.A.R.-L.)
| | - José A. Rodríguez-Liébana
- Andaltec Technological Centre, Ampliación Polígono Industrial Cañada de la Fuente, C/Vilches 34, 23600 Martos, Spain; (S.J.-C.); (F.J.N.-M.); (J.A.R.-L.)
| | - M. Dolores La Rubia
- Department of Chemical, Environmental and Materials Engineering, Campus Las Lagunillas, University of Jaén, 23071 Jaén, Spain
- University Institute of Research on Olive and Olive Oils (INUO), Campus Las Lagunillas, University of Jaén, 23071 Jaén, Spain
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Xing J, Zhang M, Liu X, Wang C, Xu N, Xing D. Multi-material electrospinning: from methods to biomedical applications. Mater Today Bio 2023; 21:100710. [PMID: 37545561 PMCID: PMC10401296 DOI: 10.1016/j.mtbio.2023.100710] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/03/2023] [Accepted: 06/16/2023] [Indexed: 08/08/2023] Open
Abstract
Electrospinning as a versatile, simple, and cost-effective method to engineer a variety of micro or nanofibrous materials, has contributed to significant developments in the biomedical field. However, the traditional electrospinning of single material only can produce homogeneous fibrous assemblies with limited functional properties, which oftentimes fails to meet the ever-increasing requirements of biomedical applications. Thus, multi-material electrospinning referring to engineering two or more kinds of materials, has been recently developed to enable the fabrication of diversified complex fibrous structures with advanced performance for greatly promoting biomedical development. This review firstly gives an overview of multi-material electrospinning modalities, with a highlight on their features and accessibility for constructing different complex fibrous structures. A perspective of how multi-material electrospinning opens up new opportunities for specific biomedical applications, i.e., tissue engineering and drug delivery, is also offered.
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Affiliation(s)
- Jiyao Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Miao Zhang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Xinlin Liu
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Chao Wang
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
| | - Nannan Xu
- School of Computer Science and Technology, Ocean University of China, Qingdao, 266000, China
| | - Dongming Xing
- The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, China
- Qingdao Cancer Institute, Qingdao, 266071, China
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
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9
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Tian R, Li K, Lin Y, Lu C, Duan X. Characterization Techniques of Polymer Aging: From Beginning to End. Chem Rev 2023; 123:3007-3088. [PMID: 36802560 DOI: 10.1021/acs.chemrev.2c00750] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Polymers have been widely applied in various fields in the daily routines and the manufacturing. Despite the awareness of the aggressive and inevitable aging for the polymers, it still remains a challenge to choose an appropriate characterization strategy for evaluating the aging behaviors. The difficulties lie in the fact that the polymer features from the different aging stages require different characterization methods. In this review, we present an overview of the characterization strategies preferable for the initial, accelerated, and late stages during polymer aging. The optimum strategies have been discussed to characterize the generation of radicals, variation of functional groups, substantial chain scission, formation of low-molecular products, and deterioration in the polymers' macro-performances. In view of the advantages and the limitations of these characterization techniques, their utilization in a strategic approach is considered. In addition, we highlight the structure-property relationship for the aged polymers and provide available guidance for lifetime prediction. This review could allow the readers to be knowledgeable of the features for the polymers in the different aging stages and provide access to choose the optimum characterization techniques. We believe that this review will attract the communities dedicated to materials science and chemistry.
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Affiliation(s)
- Rui Tian
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Kaitao Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yanjun Lin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- School of Chemical Engineering, Qinghai University, Xining 810016, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xue Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Yao L, Sun C, Lin H, Li G, Lian Z, Song R, Zhuang S, Zhang D. Enhancement of AFB 1 Removal Efficiency via Adsorption/Photocatalysis Synergy Using Surface-Modified Electrospun PCL-g-C 3N 4/CQDs Membranes. Biomolecules 2023; 13:biom13030550. [PMID: 36979485 PMCID: PMC10046413 DOI: 10.3390/biom13030550] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/18/2023] [Accepted: 03/07/2023] [Indexed: 03/29/2023] Open
Abstract
Aflatoxin B1 (AFB1) is a highly toxic mycotoxin produced by aspergillus species under specific conditions as secondary metabolites. In this study, types of PCL (Polycaprolactone) membranes anchored (or not) to g-C3N4/CQDs composites were prepared using electrospinning technology with (or without) the following surface modification treatment to remove AFB1. These membranes and g-C3N4/CQDs composites were characterized by SEM, TEM, UV-vis, XRD, XPS and FTIR to analyze their physical and chemical properties. Among them, the modified PCL-g-C3N4/CQDs electrospun membranes exhibited an excellent ability to degrade AFB1 via synergistic effects of adsorption and photocatalysis, and the degradation rate of 0.5 μg/mL AFB1 solution was observed to be up to 96.88% in 30 min under visible light irradiation. Moreover, the modified PCL-g-C3N4/CQDs electrospun membranes could be removed directly after the reaction process without centrifugal or magnetic separation, and the regeneration was a green approach synchronized with the reaction under visible light avoiding physical or chemical treatment. The mechanism of adsorption by electrostatic attraction and hydrogen bonding interaction was revealed and the mechanism of photodegradation of AFB1 was also proposed based on active species trapping experiments. This study illuminated the highly synergic adsorption and photocatalytic AFB1 removal efficiency without side effects from the modified PCL-g-C3N4/CQDs electrospun membranes, thereby offering a continual and green solution to AFB1 removal in practical application.
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Affiliation(s)
- Liangtao Yao
- Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
| | - Changpo Sun
- Standards and Quality Center of National Food and Strategic Reserves Administration, No.25 Yuetan North Street, Xicheng District, Beijing 100834, China
| | - Hui Lin
- Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
| | - Guisheng Li
- Department of Chemistry, College of Science, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
| | - Zichao Lian
- Department of Chemistry, College of Science, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
| | - Ruixin Song
- Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
| | - Songlin Zhuang
- Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
| | - Dawei Zhang
- Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai 200093, China
- Fujian Provincial Key Laboratory for Advanced Micro-Nano Photonics Technology and Devices, Research Center for Photonics Technology, Quanzhou Normal University, Quanzhou 362000, China
- Correspondence:
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Di Cristo F, Valentino A, De Luca I, Peluso G, Bonadies I, Di Salle A, Calarco A. Polylactic Acid/Poly(vinylpyrrolidone) Co-Electrospun Fibrous Membrane as a Tunable Quercetin Delivery Platform for Diabetic Wounds. Pharmaceutics 2023; 15:pharmaceutics15030805. [PMID: 36986666 PMCID: PMC10054567 DOI: 10.3390/pharmaceutics15030805] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/23/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Diabetic wound infections (DWI) represent one of the most costly and disruptive complications in diabetic mellitus. The hyperglycemic state induces a persistent inflammation with immunological and biochemical impairments that promotes delayed wound healing processes and wound infection that often results in extended hospitalization and limb amputations. Currently, the available therapeutic options for the management of DWI are excruciating and expensive. Hence, it is essential to develop and improve DWI-specific therapies able to intervene on multiple fronts. Quercetin (QUE) exhibits excellent anti-inflammatory, antioxidant, antimicrobial and wound healing properties, which makes it a promising molecule for the management of diabetic wounds. In the present study, Poly-lactic acid/poly(vinylpyrrolidone) (PP) co-electrospun fibers loaded with QUE were developed. The results demonstrated a bimodal diameter distribution with contact angle starting from 120°/127° and go to 0° in less than 5 s indicating the hydrophilic nature of fabricated samples. The release QUE kinetics, analyzed in simulated wound fluid (SWF), revealed a strong initial burst release, followed by a constant and continuous QUE release. Moreover, QUE-loaded membranes present excellent antibiofilm and anti-inflammatory capacity and significantly reduce the gene expression of M1 markers tumor necrosis factor (TNF)-α, and IL-1β in differentiated macrophages. In conclusion, the results suggested that the prepared mats loaded with QUE could be a hopeful drug-delivery system for the effective treatment of diabetic wound infections.
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Affiliation(s)
| | - Anna Valentino
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino, 111, 80131 Naples, Italy
| | - Ilenia De Luca
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino, 111, 80131 Naples, Italy
| | - Gianfranco Peluso
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino, 111, 80131 Naples, Italy
- Faculty of Medicine and Surgery, Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro, 8, 00131 Rome, Italy
| | - Irene Bonadies
- Institute of Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, Italy
- Correspondence: (I.B.); (A.C.)
| | - Anna Di Salle
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino, 111, 80131 Naples, Italy
| | - Anna Calarco
- Research Institute on Terrestrial Ecosystems (IRET)—CNR, Via Pietro Castellino, 111, 80131 Naples, Italy
- Correspondence: (I.B.); (A.C.)
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12
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Fan Y, Miao X, Hou C, Wang J, Lin J, Bian F. High tensile performance of PLA fiber-reinforced PCL composite via a synergistic process of strain and crystallization. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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13
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Dong Y, Yao L, Cai L, Jin M, Forouzanfar T, Wu L, Liu J, Wu G. Antimicrobial and Pro-Osteogenic Coaxially Electrospun Magnesium Oxide Nanoparticles-Polycaprolactone /Parathyroid Hormone-Polycaprolactone Composite Barrier Membrane for Guided Bone Regeneration. Int J Nanomedicine 2023; 18:369-383. [PMID: 36700148 PMCID: PMC9869899 DOI: 10.2147/ijn.s395026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/24/2022] [Indexed: 01/21/2023] Open
Abstract
Introduction An antibacterial and pro-osteogenic coaxially electrospun nanofiber guided bone regeneration (GBR) membrane was fabricated to satisfy the complicated and phased requirements of GBR process. Methods In this study, we synthesize dual-functional coaxially electrospun nanofiber GBR membranes by encapsulating parathyroid hormone (PTH) in the core layer and magnesium oxide nanoparticles (MgONPs) in the shell layer (MgONPs-PCL/PTH-PCL). Herein, the physicochemical characterization of MgONPs-PCL/PTH-PCL, the release rates of MgONPs and PTH, and antibacterial efficiency of the new membrane were evaluated. Furthermore, the pro-osteogenicity of the membranes was assessed both in-vitro and in-vivo. Results We successfully fabricated a coaxially electrospun nanofiber MgONPs-PCL/PTH-PCL membrane with the majority of nanofibers (>65%) ranged from 0.40~0.60μm in diameter. MgONPs-PCL/PTH-PCL showed outstanding antibacterial potential against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) through the release of MgONPs. We also discovered that the incorporation of MgONPs significantly prolonged the release of PTH. Furthermore, both the in-vivo and in-vitro studies demonstrated that high dosage of PTH promoted pro-osteogenicity of the membrane to improve bone regeneration efficacy with the presence of MgONPs. Conclusion The new composite membrane is a promising approach to enhance bone regeneration in periodontitis or peri-implantitis patients with large-volume bone defects.
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Affiliation(s)
- Yiwen Dong
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Litao Yao
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands,Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China,Correspondence: Litao Yao, Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China, Zhejiang, Email
| | - Lei Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Mi Jin
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Lianjun Wu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Jinsong Liu, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China, Email
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
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14
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Sharma D, Banerjee A, Bhattacharyya J, Satapathy BK. Structurally stable and surface-textured polylactic acid/copolymer/poly (ε-caprolactone) blend-based electrospun constructs with tunable hydroxyapatite responsiveness. Colloids Surf B Biointerfaces 2023; 221:112969. [DOI: 10.1016/j.colsurfb.2022.112969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/19/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
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15
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Shahverdi M, Seifi S, Akbari A, Mohammadi K, Shamloo A, Movahhedy MR. Melt electrowriting of PLA, PCL, and composite PLA/PCL scaffolds for tissue engineering application. Sci Rep 2022; 12:19935. [PMID: 36402790 PMCID: PMC9675866 DOI: 10.1038/s41598-022-24275-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/14/2022] [Indexed: 11/21/2022] Open
Abstract
Fabrication of well-ordered and bio-mimetic scaffolds is one of the most important research lines in tissue engineering. Different techniques have been utilized to achieve this goal, however, each method has its own disadvantages. Recently, melt electrowriting (MEW) as a technique for fabrication of well-organized scaffolds has attracted the researchers' attention due to simultaneous use of principles of additive manufacturing and electrohydrodynamic phenomena. In previous research studies, polycaprolactone (PCL) has been mostly used in MEW process. PCL is a biocompatible polymer with characteristics that make it easy to fabricate well-arranged structures using MEW device. However, the mechanical properties of PCL are not favorable for applications like bone tissue engineering. Furthermore, it is of vital importance to demonstrate the capability of MEW technique for processing a broad range of polymers. To address aforementioned problems, in this study, three ten-layered box-structured well-ordered scaffolds, including neat PLA, neat PCL, and PLA/PCL composite are fabricated using an MEW device. Printing of the composite PLA/PCL scaffold using the MEW device is conducted in this study for the first time. The MEW device used in this study is a commercial fused deposition modeling (FDM) 3D printer which with some changes in its setup and configuration becomes prepared for being used as an MEW device. Since in most of previous studies, a setup has been designed and built for MEW process, the use of the FDM device can be considered as one of the novelties of this research. The printing parameters are adjusted in a way that scaffolds with nearly equal pore sizes in the range of 140 µm to 150 µm are fabricated. However, PCL fibers are mostly narrower (diameters in the range of 5 µm to 15 µm) than PLA fibers with diameters between 15 and 25 µm. Unlike the MEW process of PCL, accurate positioning of PLA fibers is difficult which can be due to higher viscosity of PLA melt compared to PCL melt. The printed composite PLA/PCL scaffold possesses a well-ordered box structure with improved mechanical properties and cell-scaffold interactions compared to both neat PLA and PCL scaffolds. Besides, the composite scaffold exhibits a higher swelling ratio than the neat PCL scaffold which can be related to the presence of less hydrophobic PLA fibers. This scaffold demonstrates an anisotropic behavior during uniaxial tensile test in which its Young's modulus, ultimate tensile stress, and strain to failure all depend on the direction of the applied tensile force. This anisotropy makes the composite PLA/PCL scaffold an exciting candidate for applications in heart tissue engineering. The results of in-vitro cell viability test using L929 mouse murine fibroblast and human umbilical vein endothelial (HUVEC) cells demonstrate that all of the printed scaffolds are biocompatible. In particular, the composite scaffold presents the highest cell viability value among the fabricated scaffolds. All in all, the composite PLA/PCL scaffold shows that it can be a promising substitution for neat PCL scaffold used in previous MEW studies.
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Affiliation(s)
- Mohammad Shahverdi
- grid.412553.40000 0001 0740 9747Advanced Manufacturing Laboratory, School of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Saeed Seifi
- grid.412553.40000 0001 0740 9747Nano BioTechnology Laboratory, School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
| | - Ali Akbari
- grid.412553.40000 0001 0740 9747Advanced Manufacturing Laboratory, School of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Kaivan Mohammadi
- grid.412553.40000 0001 0740 9747Advanced Manufacturing Laboratory, School of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
| | - Amir Shamloo
- grid.412553.40000 0001 0740 9747Nano BioTechnology Laboratory, School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad Reza Movahhedy
- grid.412553.40000 0001 0740 9747Advanced Manufacturing Laboratory, School of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran
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16
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da Silveira Nectoux A, Medeiros LF, Leão MB, Fernandes AN. Electrospun polymeric membranes: Potential removal of endocrine disrupting compounds using solid membrane extraction and filtration processes. J Appl Polym Sci 2022. [DOI: 10.1002/app.53256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Ghafouri SE, Mousavi SR, Khakestani M, Mozaffari S, Ajami N, Khonakdar HA. Electrospun nanofibers of poly (lactic acid)/poly (
ε
‐caprolactone) blend for the controlled release of levetiracetam. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Seyed Rasoul Mousavi
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering University of British Columbia Kelowna Canada
| | - Maliheh Khakestani
- Department of Chemical Engineering Payame Noor University (PNU) Tehran Iran
| | - Shahla Mozaffari
- Department of Chemistry Payame Noor University (PNU) Tehran Iran
| | - Narges Ajami
- Department of Chemistry Payame Noor University (PNU) Tehran Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing Iran Polymer and Petrochemical Institute Tehran Iran
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18
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Synergistic anticancer effects of metformin and Achillea vermicularis Trin-loaded nanofibers on human pancreatic cancer cell line: An in vitro study. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Sharma D, Satapathy BK. Tuning structural-response of PLA/PCL based electrospun nanofibrous mats: Role of dielectric-constant and electrical-conductivity of the solvent system. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1759-1793. [PMID: 35510916 DOI: 10.1080/09205063.2022.2073427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/27/2022] [Accepted: 04/30/2022] [Indexed: 06/14/2023]
Abstract
The role of optimum solvent systems on the fabrication of uniform, bead-free electrospun-nanofibrous-mats (ENMs) of polylactic acid (PLA), poly(ε-caprolactone) (PCL), and their blends, is investigated. The solvent systems influenced the fiber-diameters, morphology, crystallinity, thermal stability, hydrophobicity, quasi-static mechanical, and solid-state visco-elastic responses of the ENMs. Defect-free ENMs were obtained by using CF/DMF (80:20 v/v) binary solvent system while showing a relatively higher extent of crystallinity (PLA/PCL blend ∼ 34%), lower hydrophobicity (PLA ∼ 1170), higher strength (PLA ∼ 6 MPa), and moduli (PLA ∼ 305 MPa) for PLA and PLA/PCL blend systems whereas a higher strain-at-break (∼ 82%) was shown by PCL based ENMs. PLA/PCL blend based ENMs fabricated using DCM/DMF (80:20 v/v) solvent-mixture exhibited comparatively lower crystallinity (∼ 25%) but higher fiber diameter (1.03 ± 0.21 µm), strain-at-break (∼ 155%), and hydrophobicity (∼ 1300) compared to CF/DMF (80:20 v/v) system. Dynamic mechanical analysis (DMA) revealed the structural relaxation behaviors indicating the intrinsic structural deformability and flexibility of the mats. The study demonstrated the systematic role of solvent characteristics in terms of their volatility, dielectric constant, and solvent-mixture composition on the electro-spinnability and fabrication of high-strength, deformable, hydrophobic, bead-free ENMs with near monodisperse fibrous assemblies for biomedical applications.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Scienc e and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K Satapathy
- Department of Materials Scienc e and Engineering, Indian Institute of Technology Delhi, New Delhi, India
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20
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An environment-friendly polyurethane composite membrane decorated by superhydrophobic modification of TiC as high efficient separator of oil-water emulsion. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Wlodarczyk J, Musial-Kulik M, Jelonek K, Stojko M, Karpeta-Jarzabek P, Pastusiak M, Janeczek H, Dobrzynski P, Sobota M, Kasperczyk J. Dual-jet electrospun PDLGA/PCU nonwovens as promising mesh implant materials with controlled release of sirolimus and diclofenac. Int J Pharm 2022; 625:122113. [PMID: 35973592 DOI: 10.1016/j.ijpharm.2022.122113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 10/15/2022]
Abstract
Dual-jet electrospinning was employed to produce two-component, partially degradable drug releasing nonwovens with interlacing of poly(D,L-lactide-co-glycolide) (PDLGA) and different poly(carbonate urethanes) (PCUs). Diclofenac sodium and sirolimus were released simultaneously from the copolyester carrier. The research focused on determining of release profiles of drugs, depending on the hydrophilicity of introduced PCU nanofibers. The influence of drugs incorporation on the hydrolytic degradation of the PDLGA and mechanical properties of nonwovens was also studied. Evaluation for interaction with cells in vitro was investigated on a fibroblast cell line in cytotoxicity and surface adhesion tests. Significant changes in drugs release rate, depending on the applied PCU were observed. It was also noticed, that hydrophilicity of drugs significantly influenced the hydrolytic degradation mechanism and surface erosion of the PDLGA, as well as the tensile strength of nonwovens. Tests carried out on cells in an in vitro experiment showed that introduction of sirolimus caused a slight reduction in the viability of fibroblasts as well as a strong limitation in their capability to colonize the surface of fibers. Due to improvement of mechanical strength and the ability to controlled drugs release, the obtained material may be considered as prospect surgical mesh implant in the treatment of hernia.
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Affiliation(s)
- Jakub Wlodarczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Monika Musial-Kulik
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Katarzyna Jelonek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Mateusz Stojko
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland; Department of Biopharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 8 Jednosci St., 41-200 Sosnowiec, Poland
| | - Paulina Karpeta-Jarzabek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Malgorzata Pastusiak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Piotr Dobrzynski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland
| | - Michal Sobota
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland.
| | - Janusz Kasperczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowskiej St., 41-819 Zabrze, Poland; Department of Biopharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 8 Jednosci St., 41-200 Sosnowiec, Poland
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22
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Can‐Herrera LA, Oliva AI, Cervantes‐Uc JM. Enhancement of chemical, physical, and surface properties of electrospun
PCL
/
PLA
blends by means of air plasma treatment. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Andrés Iván Oliva
- Departamento de Física Aplicada CINVESTAV‐IPN, Unidad Mérida Mérida Yucatán Mexico
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23
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Poly(lactic acid)-Based Electrospun Fibrous Structures for Biomedical Applications. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12063192] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Poly(lactic acid)(PLA) is an aliphatic polyester that can be derived from natural and renewable resources. Owing to favorable features, such as biocompatibility, biodegradability, good thermal and mechanical performance, and processability, PLA has been considered as one of the most promising biopolymers for biomedical applications. Particularly, electrospun PLA nanofibers with distinguishing characteristics, such as similarity to the extracellular matrix, large specific surface area and high porosity with small pore size and tunable mechanical properties for diverse applications, have recently given rise to advanced spillovers in the medical area. A variety of PLA-based nanofibrous structures have been explored for biomedical purposes, such as wound dressing, drug delivery systems, and tissue engineering scaffolds. This review highlights the recent advances in electrospinning of PLA-based structures for biomedical applications. It also gives a comprehensive discussion about the promising approaches suggested for optimizing the electrospun PLA nanofibrous structures towards the design of specific medical devices with appropriate physical, mechanical and biological functions.
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Conzatti G, Ayadi F, Cavalie S, Castel‐Molière M, Tourrette A. Hydrophobization of hydrophilic alginate/chitosan
PEC
surfaces. J Appl Polym Sci 2022. [DOI: 10.1002/app.51829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guillaume Conzatti
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), FMTS Université de Strasbourg Strasbourg France
- CIRIMAT Université de Toulouse, CNRS Toulouse France
| | - Farouk Ayadi
- CIRIMAT Université de Toulouse, CNRS Toulouse France
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25
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Capuana E, Lopresti F, Ceraulo M, La Carrubba V. Poly-l-Lactic Acid (PLLA)-Based Biomaterials for Regenerative Medicine: A Review on Processing and Applications. Polymers (Basel) 2022; 14:1153. [PMID: 35335484 PMCID: PMC8955974 DOI: 10.3390/polym14061153] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/02/2022] [Accepted: 03/09/2022] [Indexed: 02/06/2023] Open
Abstract
Synthetic biopolymers are effective cues to replace damaged tissue in the tissue engineering (TE) field, both for in vitro and in vivo application. Among them, poly-l-lactic acid (PLLA) has been highlighted as a biomaterial with tunable mechanical properties and biodegradability that allows for the fabrication of porous scaffolds with different micro/nanostructures via various approaches. In this review, we discuss the structure of PLLA, its main properties, and the most recent advances in overcoming its hydrophobic, synthetic nature, which limits biological signaling and protein absorption. With this aim, PLLA-based scaffolds can be exposed to surface modification or combined with other biomaterials, such as natural or synthetic polymers and bioceramics. Further, various fabrication technologies, such as phase separation, electrospinning, and 3D printing, of PLLA-based scaffolds are scrutinized along with the in vitro and in vivo applications employed in various tissue repair strategies. Overall, this review focuses on the properties and applications of PLLA in the TE field, finally affording an insight into future directions and challenges to address an effective improvement of scaffold properties.
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Affiliation(s)
- Elisa Capuana
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
| | - Francesco Lopresti
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
| | - Manuela Ceraulo
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
| | - Vincenzo La Carrubba
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (M.C.); (V.L.C.)
- ATeN Center, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
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26
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Evaluation of Polycaprolactone Electrospun Nanofiber-Composites for Artificial Skin Based on Dermal Fibroblast Culture. Bioengineering (Basel) 2022; 9:bioengineering9010019. [PMID: 35049727 PMCID: PMC8773077 DOI: 10.3390/bioengineering9010019] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/26/2021] [Accepted: 12/30/2021] [Indexed: 12/31/2022] Open
Abstract
The study’s aim was to develop a dermal equivalent scaffold that can mimic the architecture and biological performance of the human dermis. Poly ε-caprolactone (PCL) electrospun nanofiber material (ENF) was assembled with polyethylene glycol diacrylate (PEGDA), sodium alginate (SA) and type I collagen (CG1) to develop three groups of dermal equivalent scaffolds. These scaffolds were named PEGDA-PCL, SA-PCL and CG1-PCL. Scanning electron microscopy (SEM) images of cell-free scaffolds’ top and cross-sectional surface were collected and analyzed to examine internal morphology, specifically the adhesiveness of PCL fibers with the different scaffolds. Human dermal fibroblasts were cultured on each of the scaffolds. Cell viability studies including cell adhesion, cell differentiation and stress fiber production were conducted on each scaffold. Furthermore, the architectural integrity of each scaffold was verified by degradation analysis for 2 weeks by soaking each scaffold in phosphate-buffered saline (PBS) solution. Finally, we conducted rheological characteristics of each scaffold. Based on our results from the above analysis, the study concluded that CG1-PCL is best suitable for the dermal equivalent model and has potential to be used as a graft for skin repair.
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Wlodarczyk J, Stojko M, Musial-Kulik M, Karpeta-Jarzabek P, Pastusiak M, Janeczek H, Dobrzynski P, Sobota M, Kasperczyk J. Dual-jet electrospun PDLGA/PCU nonwovens and their mechanical and hydrolytic degradation properties. J Mech Behav Biomed Mater 2021; 126:105050. [PMID: 34959096 DOI: 10.1016/j.jmbbm.2021.105050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/26/2022]
Abstract
A dual-jet electrospinning was used to mix a different hydrophilicity poly(carbonate urethanes) (PCUs) nanofibers with a biodegradable poly(D,L-lactide-co-glycolide) (PDLGA) copolyester microfibers. As a result, PDLGA/PCU partially degradable nonwovens consisting of an interlaced of both components fibers were obtained. In order to examine the hydrolytic degradation process of polyester fraction, as well as changes that occurred in the mechanical properties of the whole nonwovens, gel permeation chromatography, proton nuclear magnetic resonance spectroscopy, differential scanning calorimetry and scanning electron microscopy as well as static tensile test were performed. Obtained results showed that for the introduction of more hydrophobic PCU nanofibers (ChronoSil), the process of copolyester chain scission slowed down and the erosion mechanism proceeded in bulk. Unexpectedly, even greater deceleration of PDLGA fibers degradation was observed in case of more hydrophilic PCU (HydroThane), and erosion mechanism changed to surface. Enhancement the affinity of the whole nonwoven to the water, manifested by strong water uptake, facilitated the diffusion processes of both: water and acid degradation by-products, which limited autocatalysis reactions of the hydrolysis of ester bonds. On the other hand, strength tests showed the synergy in the mechanical characteristics of both components. Presented method allows influencing the mechanism and rate of polyester degradation without changing its chemical composition and physical properties, affecting only the physical interactions between the nonwoven and the degradation environment, and thus, on diffusion processes. Obtained partially degradable materials possessed also time prolonged functional properties, compared to the copolyester-only nonwoven itself, thus could be considered as promising for biomedical applications e.g. in drug release systems, implants or surgical meshes for supporting soft tissues.
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Affiliation(s)
- Jakub Wlodarczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland.
| | - Mateusz Stojko
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland; Department of Biopharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 8 Jednosci St., 41-200, Sosnowiec, Poland
| | - Monika Musial-Kulik
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland
| | - Paulina Karpeta-Jarzabek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland
| | - Malgorzata Pastusiak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland
| | - Piotr Dobrzynski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland
| | - Michal Sobota
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland.
| | - Janusz Kasperczyk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 Curie-Sklodowska St., 41-819, Zabrze, Poland; Department of Biopharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 8 Jednosci St., 41-200, Sosnowiec, Poland
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Liu Q, Jia H, Ouyang W, Mu Y, Wu Z. Fabrication of Antimicrobial Multilayered Nanofibrous Scaffolds-Loaded Drug via Electrospinning for Biomedical Application. Front Bioeng Biotechnol 2021; 9:755777. [PMID: 34746107 PMCID: PMC8565619 DOI: 10.3389/fbioe.2021.755777] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/15/2021] [Indexed: 12/19/2022] Open
Abstract
Nanofibers prepared by biobased materials are widely used in the field of biomedicine, owing to outstanding biocompatibility, biodegradable characters, and excellent mechanical behavior. Herein, we fabricated multilayered nanofibrous scaffolds in order to improve the performance of drug delivery. The composite layer-by-layer scaffolds were incorporated by hydrophobic poly(l-lactic acid) (PLA): polycaprolactone (PCL) and hydrophilic poly(vinyl alcohol) (PVA) nanofibers via multilayer electrospinning. Morphological and structural characteristics of the developed scaffolds measured by scanning electron microscopy (SEM), and transmission electron microscopy (TEM) confirmed smooth and uniform fibers ranging in nanometer scale. The differences in contact angles and Fourier transform infrared spectrum (FTIR) between single-layered PVA nanofibers and multilayered scaffolds verified the existence of PLA: PCL surface. In vitro biodegradable and drug release analysis depicted multilayered scaffolds had good biodegradability and potential for medical application. Due to the model drug incorporation, scaffolds exhibited good antibacterial activity against Escherichia coli and Staphylococcus aureus by the zone of inhibition test. These results revealed that the multilayered scaffolds were proved to be desirable antibacterial materials for biomedical application.
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Affiliation(s)
- Qi Liu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| | - Hengmin Jia
- Department of Infection Control and Prevention, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Wenchong Ouyang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China
| | - Yan Mu
- Department of Infection Control and Prevention, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Zhengwei Wu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Geospace Environment, University of Science and Technology of China, Hefei, China
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Tertyshnaya YV, Zakharov MS, Zhdanova KA, Bragina NA. The Spectral Characteristics and Morphology of a Composite Material Based on Polylactide and Alkoxy-Substituted meso-Arylporphyrins. POLYMER SCIENCE SERIES B 2021. [DOI: 10.1134/s1560090421060282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Lopresti F, Pavia FC, Ceraulo M, Capuana E, Brucato V, Ghersi G, Botta L, La Carrubba V. Physical and biological properties of electrospun poly(d,l-lactide)/nanoclay and poly(d,l-lactide)/nanosilica nanofibrous scaffold for bone tissue engineering. J Biomed Mater Res A 2021; 109:2120-2136. [PMID: 33942505 PMCID: PMC8518812 DOI: 10.1002/jbm.a.37199] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/22/2021] [Accepted: 04/06/2021] [Indexed: 12/11/2022]
Abstract
Electrospun scaffolds exhibiting high physical performances with the ability to support cell attachment and proliferation are attracting more and more scientific interest for tissue engineering applications. The inclusion of inorganic nanoparticles such as nanosilica and nanoclay into electrospun biopolymeric matrices can meet these challenging requirements. The silica and clay incorporation into polymeric nanofibers has been reported to enhance and improve the mechanical properties as well as the osteogenic properties of the scaffolds. In this work, for the first time, the physical and biological properties of polylactic acid (PLA) electrospun mats filled with different concentrations of nanosilica and nanoclay were evaluated and compared. The inclusion of the particles was evaluated through morphological investigations and Fourier transform infrared spectroscopy. The morphology of nanofibers was differently affected by the amount and kind of fillers and it was correlated to the viscosity of the polymeric suspensions. The wettability of the scaffolds, evaluated through wet contact angle measurements, slightly increased for both the nanocomposites. The crystallinity of the systems was investigated by differential scanning calorimetry highlighting the nucleating action of both nanosilica and nanoclay on PLA. Scaffolds were mechanically characterized with tensile tests to evaluate the reinforcing action of the fillers. Finally, cell culture assays with pre-osteoblastic cells were conducted on a selected composite scaffold in order to compare the cell proliferation and morphology with that of neat PLA scaffolds. Based on the results, we can convince that nanosilica and nanoclay can be both considered great potential fillers for electrospun systems engineered for bone tissue regeneration.
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Affiliation(s)
| | | | - Manuela Ceraulo
- Department of EngineeringUniversity of Palermo, RU INSTMPalermoItaly
| | - Elisa Capuana
- Department of EngineeringUniversity of Palermo, RU INSTMPalermoItaly
| | - Valerio Brucato
- Department of EngineeringUniversity of Palermo, RU INSTMPalermoItaly
| | - Giulio Ghersi
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of PalermoPalermoItaly
| | - Luigi Botta
- Department of EngineeringUniversity of Palermo, RU INSTMPalermoItaly
| | - Vincenzo La Carrubba
- Department of EngineeringUniversity of Palermo, RU INSTMPalermoItaly
- ATeN CenterUniversity of PalermoPalermoItaly
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31
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Sharma D, Saha S, Satapathy BK. Recent advances in polymer scaffolds for biomedical applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:342-408. [PMID: 34606739 DOI: 10.1080/09205063.2021.1989569] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The review provides insights into current advancements in electrospinning-assisted manufacturing for optimally designing biomedical devices for their prospective applications in tissue engineering, wound healing, drug delivery, sensing, and enzyme immobilization, and others. Further, the evolution of electrospinning-based hybrid biomedical devices using a combined approach of 3 D printing and/or film casting/molding, to design dimensionally stable membranes/micro-nanofibrous assemblies/patches/porous surfaces, etc. is reported. The influence of various electrospinning parameters, polymeric material, testing environment, and other allied factors on the morphological and physico-mechanical properties of electrospun (nano-/micro-fibrous) mats (EMs) and fibrous assemblies have been compiled and critically discussed. The spectrum of operational research and statistical approaches that are now being adopted for efficient optimization of electrospinning process parameters so as to obtain the desired response (physical and structural attributes) has prospectively been looked into. Further, the present review summarizes some current limitations and future perspectives for modeling architecturally novel hybrid 3 D/selectively textured structural assemblies, such as biocompatible, non-toxic, and bioresorbable mats/scaffolds/membranes/patches with apt mechanical stability, as biological substrates for various regenerative and non-regenerative therapeutic devices.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
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32
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Scaffaro R, Maio A, D'Arrigo M, Lopresti F, Marino A, Bruno M, Nostro A. Flexible mats as promising antimicrobial systems via integration of Thymus capitatus (L.) essential oil into PLA. Future Microbiol 2021; 15:1379-1392. [PMID: 33085542 DOI: 10.2217/fmb-2019-0291] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aim: To develop electrospun mats loaded with Thymus capitatus (L.) essential oil (ThymEO) and to study their morpho-mechanical and antimicrobial properties. Materials & methods: Poly(lactic acid) (PLA) mats containing ThymEO were prepared by electrospinning. The effect of ThymEO on the morpho-mechanical properties of fibers was assayed by scanning electron microscopy and dynamometer measurements. The antimicrobial activity of ThymEO delivered either in liquid or vapor phase was assessed through killing curves and invert Petri dishes method. The cytotoxicity was also investigated. Results: The mechanical properties were enhanced by integrating ThymEO into PLA. Both liquid and vapors of ThymEO released from mats caused reductions of microbial viable cells. Negligible cytotoxicity was demonstrated. Conclusion: PLA/ThymEO delivery systems could be suitable for treating microbial infections.
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Affiliation(s)
- Roberto Scaffaro
- Department of Engineering, University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Andrea Maio
- Department of Engineering, University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Manuela D'Arrigo
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, Polo Annunziata, University of Messina, Messina, 98168, Italy
| | - Francesco Lopresti
- Department of Engineering, University of Palermo, Viale delle Scienze Ed. 6, Palermo, 90128, Italy
| | - Andreana Marino
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, Polo Annunziata, University of Messina, Messina, 98168, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical & Pharmaceutical Sciences & Technologies, University of Palermo, Viale delle Scienze Ed. 16, Palermo, 90128, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical & Environmental Sciences, Polo Annunziata, University of Messina, Messina, 98168, Italy
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33
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Engineered Membranes for Residual Cell Trapping on Microfluidic Blood Plasma Separation Systems: A Comparison between Porous and Nanofibrous Membranes. MEMBRANES 2021; 11:membranes11090680. [PMID: 34564497 PMCID: PMC8470088 DOI: 10.3390/membranes11090680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/24/2022]
Abstract
Blood-based clinical diagnostics require challenging limit-of-detection for low abundance, circulating molecules in plasma. Micro-scale blood plasma separation (BPS) has achieved remarkable results in terms of plasma yield or purity, but rarely achieving both at the same time. Here, we proposed the first use of electrospun polylactic-acid (PLA) membranes as filters to remove residual cell population from continuous hydrodynamic-BPS devices. The membranes hydrophilicity was improved by adopting a wet chemistry approach via surface aminolysis as demonstrated through Fourier Transform Infrared Spectroscopy and Water Contact Angle analysis. The usability of PLA-membranes was assessed through degradation measurements at extreme pH values. Plasma purity and hemolysis were evaluated on plasma samples with residual red blood cell content (1, 3, 5% hematocrit) corresponding to output from existing hydrodynamic BPS systems. Commercially available membranes for BPS were used as benchmark. Results highlighted that the electrospun membranes are suitable for downstream residual cell removal from blood, permitting the collection of up to 2 mL of pure and low-hemolyzed plasma. Fluorometric DNA quantification revealed that electrospun membranes did not significantly affect the concentration of circulating DNA. PLA-based electrospun membranes can be combined with hydrodynamic BPS in order to achieve high volume plasma separation at over 99% plasma purity.
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34
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Tertyshnaya YV, Podzorova MV. Degradation of Polylactide–Polyethylene Blends in Aqueous Media. RUSS J APPL CHEM+ 2021. [DOI: 10.1134/s1070427221050128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Capuana E, Lopresti F, Carfì Pavia F, Brucato V, La Carrubba V. Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review. Polymers (Basel) 2021; 13:2041. [PMID: 34206515 PMCID: PMC8271609 DOI: 10.3390/polym13132041] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 12/13/2022] Open
Abstract
The fabrication of 3D scaffolds is under wide investigation in tissue engineering (TE) because of its incessant development of new advanced technologies and the improvement of traditional processes. Currently, scientific and clinical research focuses on scaffold characterization to restore the function of missing or damaged tissues. A key for suitable scaffold production is the guarantee of an interconnected porous structure that allows the cells to grow as in native tissue. The fabrication techniques should meet the appropriate requirements, including feasible reproducibility and time- and cost-effective assets. This is necessary for easy processability, which is associated with the large range of biomaterials supporting the use of fabrication technologies. This paper presents a review of scaffold fabrication methods starting from polymer solutions that provide highly porous structures under controlled process parameters. In this review, general information of solution-based technologies, including freeze-drying, thermally or diffusion induced phase separation (TIPS or DIPS), and electrospinning, are presented, along with an overview of their technological strategies and applications. Furthermore, the differences in the fabricated constructs in terms of pore size and distribution, porosity, morphology, and mechanical and biological properties, are clarified and critically reviewed. Then, the combination of these techniques for obtaining scaffolds is described, offering the advantages of mimicking the unique architecture of tissues and organs that are intrinsically difficult to design.
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Affiliation(s)
- Elisa Capuana
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (F.L.); (F.C.P.); (V.B.)
| | - Francesco Lopresti
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (F.L.); (F.C.P.); (V.B.)
| | - Francesco Carfì Pavia
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (F.L.); (F.C.P.); (V.B.)
| | - Valerio Brucato
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (F.L.); (F.C.P.); (V.B.)
| | - Vincenzo La Carrubba
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (E.C.); (F.L.); (F.C.P.); (V.B.)
- ATeN Center, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
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36
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Mendes LG, Ferreira FV, Sielski MS, Livi S, Rocco SA, Sforça ML, Burga-Sánchez J, Vicente CP, Mei LHI. Electrospun Nanofibrous Architectures of Thrombin-Loaded Poly(ethylene oxide) for Faster in Vivo Wound Clotting. ACS APPLIED BIO MATERIALS 2021; 4:5240-5250. [DOI: 10.1021/acsabm.1c00402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Larissa G. Mendes
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
| | - Filipe V. Ferreira
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
| | - Micheli S. Sielski
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas 13083-862, São Paulo, Brazil
| | - Sebastien Livi
- Université de Lyon, Ingénierie des Matériaux Polymères CNRS, UMR 5223, INSA Lyon, Villeurbanne F-69621, France
| | - Silvana A. Rocco
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, São Paulo, Brazil
| | - Maurício L. Sforça
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, São Paulo, Brazil
| | - Jonny Burga-Sánchez
- Physiological Science Department, Piracicaba Dental School, University of Campinas, Campinas 13414-903, São Paulo, Brazil
| | - Cristina P. Vicente
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas 13083-862, São Paulo, Brazil
| | - Lucia H. I. Mei
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
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37
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Viscusi G, Lamberti E, Vittoria V, Gorrasi G. Coaxial electrospun membranes of poly(ε‐caprolactone)/poly(lactic acid) with reverse
core‐shell
structures loaded with curcumin as tunable drug delivery systems. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5404] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Gianluca Viscusi
- Department of Industrial Engineering University of Salerno Fisciano Italy
| | - Elena Lamberti
- Department of Industrial Engineering University of Salerno Fisciano Italy
| | - Vittoria Vittoria
- Department of Industrial Engineering University of Salerno Fisciano Italy
| | - Giuliana Gorrasi
- Department of Industrial Engineering University of Salerno Fisciano Italy
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Core-shell PLA/Kef hybrid scaffolds for skin tissue engineering applications prepared by direct kefiran coating on PLA electrospun fibers optimized via air-plasma treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112248. [PMID: 34225887 DOI: 10.1016/j.msec.2021.112248] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/27/2021] [Accepted: 06/06/2021] [Indexed: 02/07/2023]
Abstract
Over the recent years, there is a growing interest in electrospun hybrid scaffolds composed of synthetic and natural polymers that can support cell attachment and proliferation. In this work, the physical and biological properties of polylactic acid (PLA) electrospun mats coated with kefiran (Kef) were evaluated. Gravimetric, spectroscopic (FTIR-ATR) and morphological investigations via scanning electron microscopy confirmed the effective formation of a thin kefiran layer wrapped on the PLA fibers with an easy-tunable thickness. Air plasma pre-treatment carried out on PLA (P-PLA) affected both the morphology and the crystallinity of Kef coating as confirmed by differential scanning calorimetry and X-ray diffraction analyses. Scaffolds were mechanically characterized with tensile tests to evaluate the reinforcing action of the Kef coating. The water resistance of Kefiran coating in distilled water at 37 °C evaluated on both PLA/Kef and P-PLA/Kef was carried out by gravimetric and morphological analyses. Finally, cell culture assays with embryonic fibroblast cells were conducted on selected hybrid scaffolds to compare the cell proliferation, morphology, and collagen production with PLA and P-PLA electrospun scaffolds. Based on the results, we can demonstrate that direct coating of PLA from Kef/water solutions is an effective approach to prepare hybrid scaffolds with tunable properties and that the plasma pre-treatment enhances the affinity between PLA and Kefiran. In vitro tests demonstrated the great potential of PLA/Kef hybrid scaffolds for skin tissue engineering.
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Sharma D, Satapathy BK. Understanding release kinetics and collapse proof suture retention response of curcumin loaded electrospun mats based on aliphatic polyesters and their blends. J Mech Behav Biomed Mater 2021; 120:104556. [PMID: 34000581 DOI: 10.1016/j.jmbbm.2021.104556] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022]
Abstract
The paper aims at designing and fabrication of PLA/PCL blended suture resistant electrospun mats (EMs) encapsulating non-toxic curcumin and optimization of its release behavior, to facilitate its sustained release at the targeted areas, without complexation with any chemical and/or synthetic drug. The release of curcumin from PLA/PCL blended EMs followed a diffusion-controlled mechanism, as evident from the agreement of the experimental release data with Peppas- Korsmeyer, Higuchi, and Kopcha model. The curcumin embedded EMs have effectively rendered a release confirming to a new generalized logarithmic model. PLA/PCL blended EMs have proved to be an excellent carrier system, exhibiting enhanced cumulative curcumin release with an increase in curcumin loading. The evaluation of structural and viscoelastic properties of the fabricated EMs showed an increase in modulus and strength, along with a subsequent decrease in elongation, with an increase in curcumin content. Suture-induced cooperative collapse dynamics the EMs have been found to be a three-stage process involving stable, stable-unstable, and fast-unstable structural failure corresponding to network realignment, lateral pullout/fracture of fibers, and divergent tearing along the crack path. The viscoelastic responses showed a prominent shift in glass transition temperature (Tg) of the PCL phase indicating the development of curcumin-induced microstructural changes attributed to the H-bonding interaction with polymer segments of PLA/PCL-based EMs. Our study demonstrates, functionally efficient designing of PLA/PCL-based curcumin-loaded biodegradable EMs with sustained retention of tunable mechanical properties and hydrophobicity, irrespective of the extent of (in-vitro) curcumin release.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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40
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Oztemur J, Yalcin-Enis I. Development of biodegradable webs of PLA/PCL blends prepared via electrospinning: Morphological, chemical, and thermal characterization. J Biomed Mater Res B Appl Biomater 2021; 109:1844-1856. [PMID: 33847451 DOI: 10.1002/jbm.b.34846] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/23/2021] [Accepted: 03/31/2021] [Indexed: 01/02/2023]
Abstract
Biodegradable polymers have a mean role to mimic native tissues and allow cells to penetrate, grow, and proliferate with their advanced features in tissue engineering applications. The physiological, chemical, mechanical, and biological qualities of the surfaces, which are presented from biodegradable polymers, affect the final properties of the scaffolds. In this study, it is aimed to produce fibrous webs by electrospinning method for tissue engineering applications using two different biopolymers, polylactic acid (PLA) and polycaprolactone (PCL). These polymers are used either alone or in a blended form (PLA/PCL, 1/1 wt.). Within the scope of the study, polymer concentrations (6, 8 and 10%) and solvent types (used for chloroform/ethanol/acetic acid mixture, PCL and PLA/PCL mixtures, and chloroform/acetone, PLA) vary as solution parameters. Fibrous webs are investigated in terms of morphological, chemical, and thermal characteristics. Results show continuous fibers are examined for 8 or 10% polymer concentrations with an average fiber diameter of 1.3-2.7 μm and pore area of 4-9 μm2 . No fiber formation is observed in sample groups with a polymer concentration of 6% and beaded structures are formed. Water contact angle analysis proves the hydrophobic properties of PLA and PCL, whereas Fourier-transform infrared results show there is no solution residue on the surfaces, so there is no toxic effect. Also, in differential scanning calorimetry analysis, the characteristic crystallization peaks of the polymers are recognized, and when the polymers are in a blend, it beholds that they have effects on each other's crystallization.
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Affiliation(s)
- Janset Oztemur
- Textile Engineering Department, Istanbul Technical University, Istanbul, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Istanbul Technical University, Istanbul, Turkey
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Hyaluronic acid electrospinning: Challenges, applications in wound dressings and new perspectives. Int J Biol Macromol 2021; 173:251-266. [PMID: 33476622 DOI: 10.1016/j.ijbiomac.2021.01.100] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/18/2022]
Abstract
Hyaluronic acid (HA) has already been consolidated in the literature as an extremely efficient biopolymer for biomedical applications. In addition to its biodegradability, HA also has excellent biological properties. In the nanofiber form, this polymer can mimic biological tissues, mainly the layers of the skin, and therefore has great potential as structures for the construction of wound dressings. Despite the numerous efforts from the scientific community proposing new dressings, this is an area in constant evolution. A dressing that brings together all the properties of an ideal dressing has not been developed yet. Electrospinning is a simple and versatile technique that correctly aligned with the functional properties of HA can produce multifunctional nanofiber structures capable of promoting skin recover quickly. This review discusses (i) key strategies for successful electrospinning of HA, (ii) main challenges and advances found in the electrospinning process, (iii) the bioactive properties of this polymer in the treatment of wounds, as well as (iv) the results obtained in the last decade by the in vitro and in vivo evaluation of the healing properties of these nanosystems.
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Hajikhani M, Emam-Djomeh Z, Askari G. Fabrication and characterization of mucoadhesive bioplastic patch via coaxial polylactic acid (PLA) based electrospun nanofibers with antimicrobial and wound healing application. Int J Biol Macromol 2021; 172:143-153. [PMID: 33450342 DOI: 10.1016/j.ijbiomac.2021.01.051] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 12/13/2022]
Abstract
Polylactic acid (PLA) is the second-highest consumed bioplastic in the world. PVP/PLA-PEO complex nanofibers encapsulating collagen and cefazolin dressing scaffold were fabricated using a coaxial electrospinning method to target the release of the encapsulated compounds. It was observed that in collagen doses of 10 and 20%, the speed of healing showed a significant difference with the control sample, but the dose of 40% caused a decrease in wound healing rate in mice. The nanofibers' morphology and surface roughness were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. The mechanical properties and adhesion strength of the scaffolds were investigated. The scaffolds' antimicrobial activity was evaluated by disk diffusion method against the E. coli, S. aureus, and P. aeruginosa. The results indicated a positive effect on the antimicrobial activity of the samples. In this study, we were able to prolong the effect of scaffolds by changing the pattern of release of cefazolin from inside the nanofibers. Possible interactions between the polymers and the encapsulated compounds were investigated using Fourier-transform infrared spectroscopy (FTIR). Finally, in-vivo and histological tests were performed to evaluate the efficacy of the scaffolds in accelerating wound healing.
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Affiliation(s)
- Mehdi Hajikhani
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Technology and Engineering Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj Campus, Karaj, Iran
| | - Zahra Emam-Djomeh
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Technology and Engineering Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj Campus, Karaj, Iran; Center of Excellence in Biothermodynamics, University of Tehran, Tehran, Iran.
| | - Gholamreza Askari
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Technology and Engineering Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj Campus, Karaj, Iran
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Ferreira FV, Otoni CG, Lopes JH, de Souza LP, Mei LHI, Lona LMF, Lozano K, Lobo AO, Mattoso LHC. Ultrathin polymer fibers hybridized with bioactive ceramics: A review on fundamental pathways of electrospinning towards bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111853. [PMID: 33812570 DOI: 10.1016/j.msec.2020.111853] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/21/2020] [Accepted: 12/26/2020] [Indexed: 10/22/2022]
Affiliation(s)
- Filipe V Ferreira
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Caio G Otoni
- Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - João H Lopes
- Department of Chemistry, Division of Fundamental Sciences (IEF), Technological Institute of Aeronautics (ITA), São Jose dos Campos, SP, Brazil
| | - Lucas P de Souza
- College of Engineering and Physical Sciences, Aston Institute of Materials Research, Aston University, Birmingham, UK
| | - Lucia H I Mei
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Liliane M F Lona
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Karen Lozano
- Department of Mechanical Engineering, The University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Anderson O Lobo
- Interdisciplinary Laboratory for Advanced Materials, BioMatLab, Materials Science and Engineering Graduate Program, Federal University of Piaui, Teresina, PI, Brazil.
| | - Luiz H C Mattoso
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentation, São Carlos, SP, Brazil.
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Ahuja R, Kumari N, Srivastava A, Bhati P, Vashisth P, Yadav PK, Jacob T, Narang R, Bhatnagar N. Biocompatibility analysis of PLA based candidate materials for cardiovascular stents in a rat subcutaneous implant model. Acta Histochem 2020; 122:151615. [PMID: 33066837 DOI: 10.1016/j.acthis.2020.151615] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/08/2020] [Accepted: 08/11/2020] [Indexed: 01/18/2023]
Abstract
Modification of Polylactic acid (PLA), a biopolymer, is a strategy still to be fully explored for the next generation of bioresorbable vascular stent (BVS) biomaterials. With this focus, inclusions upto 5% of Polycaprolactone (PCL) and Magnesium in PLA were tested in the rat subcutaneous model and their cellular and tissue interactions characterized, specifically with respect to inflammatory response, angiogenesis and capsularization. The cytokines IL6, TNF Alpha and IL-1Beta were estimated in the peri-implant tissue, all of which showed a non-significant difference between the non-implanted animals and those containing PLA by 8 weeks, speaking to the benign nature of PLA as an implant biomaterial. Both modified materials, had increased macrophage counts and cytokine levels, except IL6 at 8 weeks. Vascularization only at 8 weeks in PLA PCL containing tissue was significantly higher than pure PLA, which may be more carefully controlled along with the material hydrophobicity for possible efforts towards therapeutic angiogenesis. Capsule thickness, measured by staining with both Hematoxylin & Eosin and Masson's Trichome did not show any differences between materials, including PLA.
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Affiliation(s)
- Ramya Ahuja
- Department of Mechanical Engineering, Indian Institute of Technology, Delhi, India
| | - Nisha Kumari
- Department of Mechanical Engineering, Indian Institute of Technology, Delhi, India
| | - Alok Srivastava
- Department of Mechanical Engineering, Indian Institute of Technology, Delhi, India
| | - Pooja Bhati
- Department of Mechanical & Automation Engineering, Indira Gandhi Delhi Technical University for Women, India
| | - Priya Vashisth
- Department of Mechanical Engineering, Indian Institute of Technology, Delhi, India
| | - P K Yadav
- Central Animal Facility, All India Institute of Medical Sciences, Delhi, India
| | - Tony Jacob
- Department of Anatomy, All India Institute of Medical Sciences, Delhi, India
| | - Rajiv Narang
- Department of Cardiology, All India Institute of Medical Sciences, Delhi, India
| | - Naresh Bhatnagar
- Department of Mechanical Engineering, Indian Institute of Technology, Delhi, India.
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45
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Demina TS, Kuryanova AS, Bikmulina PY, Aksenova NA, Efremov YM, Khaibullin ZI, Ivanov PL, Kosheleva NV, Timashev PS, Akopova TA. Multicomponent Non-Woven Fibrous Mats with Balanced Processing and Functional Properties. Polymers (Basel) 2020; 12:E1911. [PMID: 32854227 PMCID: PMC7563478 DOI: 10.3390/polym12091911] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/15/2020] [Accepted: 08/19/2020] [Indexed: 12/17/2022] Open
Abstract
The mimicking of the architectonics of native tissue, biodegradable non-woven fibrous mats is one of the most promising forms of scaffolding for tissue engineering. The key properties needed for their successful application in vivo, such as biodegradability, biocompatibility, morphology, mechanical properties, etc., rely on their composition and appropriate 3D structure. A multicomponent system based on biodegradable synthetic (polycaprolactone, oligo-/polylactide) and natural (chitosan, gelatin) polymers, providing the desired processing characteristics and functionality to non-woven mats fabricated via the electrospinning technique, was developed. The solid-state reactive blending of these components provided a one-step synthesis of amphiphilic graft copolymer with an ability to form stable ultra-fine dispersions in chlorinated solvents, which could be successfully used as casting solvents for the electrospinning technique. The synthesized graft copolymer was analyzed with the aim of fractional analysis, dynamic laser scattering, FTIR-spectroscopy and DSC. Casting solution characteristics, namely viscosity, surface tension, and electroconductivity, as well as electrospinning parameters, were studied and optimized. The morphology, chemical structure of the surface layer, mechanical properties and cytocompatibility were analyzed to confirm the appropriate functionality of the formed fibrous materials as scaffolds for tissue engineering.
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Affiliation(s)
- Tatiana S. Demina
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
| | - Anastasia S. Kuryanova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., 119991 Moscow, Russia
| | - Polina Y. Bikmulina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
| | - Nadejda A. Aksenova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., 119991 Moscow, Russia
| | - Yuri M. Efremov
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
| | - Zulfar I. Khaibullin
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
| | - Pavel L. Ivanov
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
| | - Nastasia V. Kosheleva
- Faculty of Biology, Lomonosov Moscow State University, 12-1, Leninskie Gory, 119234 Moscow, Russia;
- FSBSI “Institute of General Pathology and Pathophysiology”, 8, Baltiyskaya st., 125315 Moscow, Russia
| | - Peter S. Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya st., 119991 Moscow, Russia; (A.S.K.); (P.Y.B.); (N.A.A.); (Y.M.E.); (P.S.T.)
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina st., 119991 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, 1-3 Leninskiye Gory, 119991 Moscow, Russia
| | - Tatiana A. Akopova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences (ISPM RAS), 70 Profsoyuznaya st., 117393 Moscow, Russia; (Z.I.K.); (P.L.I.); (T.A.A.)
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Van de Voorde KM, Pokorski JK, Korley LTJ. Exploring Morphological Effects on the Mechanics of Blended Poly(lactic acid)/Poly(ε-caprolactone) Extruded Fibers Fabricated Using Multilayer Coextrusion. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00289] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Kris M. Van de Voorde
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Jonathan K. Pokorski
- Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
- Institute for Materials Discovery and Design, University of California San Diego, La Jolla, California 92093, United States
| | - LaShanda T. J. Korley
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
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47
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Ge X, Chang M, Jiang W, Zhang B, Xing R, Bulin C. Investigation on two modification strategies for the reinforcement of biodegradable lignin/poly(lactic acid) blends. J Appl Polym Sci 2020. [DOI: 10.1002/app.49354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xin Ge
- School of Materials and MetallurgyInner Mongolia University of Science and Technology Baotou China
| | - Mingming Chang
- School of Materials and MetallurgyInner Mongolia University of Science and Technology Baotou China
| | - Wei Jiang
- School of Materials and MetallurgyInner Mongolia University of Science and Technology Baotou China
| | - Bangwen Zhang
- Instrumental Analysis CenterInner Mongolia University of Science and Technology Baotou China
| | - Ruiguang Xing
- School of Materials and MetallurgyInner Mongolia University of Science and Technology Baotou China
| | - Chaoke Bulin
- School of Materials and MetallurgyInner Mongolia University of Science and Technology Baotou China
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Heidarzadeh N, del Valle LJ, Franco L, Puiggalí J. Improvement of Biodegradability and Biocompatibility of Electrospun Scaffolds of Poly(butylene terephthalate) by Incorporation of Sebacate Units. Macromol Res 2019. [DOI: 10.1007/s13233-020-8009-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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49
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Li JW, Cheng YH, Lee HT, Tsen WC, Chiu CW, Suen MC. Properties and degradation of castor oil-based fluoridated biopolyurethanes with different lengths of fluorinated segments. RSC Adv 2019; 9:31133-31149. [PMID: 35529409 PMCID: PMC9072421 DOI: 10.1039/c9ra04654b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/09/2019] [Indexed: 12/12/2022] Open
Abstract
To develop a durable, biodegradable polymer, this study successfully synthesized a castor-oil-based prepolymer by using methylene diphenyl diisocyanate as a hard segment, polycaprolactone as a soft segment, and castor oil as a functional monomer. We added perfluorinated alkyl segments with varying chain lengths into the castor-oil-based polymer to synthesize castor-oil-based fluoridated biopolyurethanes (FCOPUs) with different fluorinated segment lengths. The castor-oil-based polyurethanes with different fluorinated segment lengths had similar molecular weights, which enabled accurate analysis of the effect of the lengths of fluorinated segments on FCOPUs. Nuclear magnetic resonance (NMR) was used to perform 1H NMR, 19F NMR, 19F-19F COSY, 1H-19F COSY, and HMBC analyses on the FCOPU structures. The results of Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy curve fitting verified the interaction between C-F⋯H-N and C-F⋯C[double bond, length as m-dash]O. This interaction increased as the fluorinated segments became longer. Regarding the thermal properties of the FCOPUs, the thermogravimetric analysis, differential scanning calorimetry, and dynamic mechanical analysis results revealed that long fluorinated segments were associated with increased thermal stability in the FCOPUs. The atomic force microscopy and tensile strength test suggested that long fluorinated segments contained in the FCOPUs increased the degree of phase separation and tensile strength in FCOPUs. Finally, we dipped the FCOPUs in a 3 wt% NaOH solution, calculated the weight loss of the FCOPUs, and observed their surface structure by using scanning electron microscopy.
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Affiliation(s)
- Jia-Wun Li
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology No. 43, Keelung Rd., Sec. 4, Da'an Dist Taipei 10607 Taiwan ROC +886-2-2737-6544 +886-2-2737-6521
| | - Yung-Hsin Cheng
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology No. 43, Keelung Rd., Sec. 4, Da'an Dist Taipei 10607 Taiwan ROC +886-2-2737-6544 +886-2-2737-6521
| | - Hsun-Tsing Lee
- Department of Materials Science and Engineering, Vanung University Jongli Taoyuan 32061 Taiwan ROC
| | - Wen-Chin Tsen
- Department of Fashion and Design, Lee-Ming Institute of Technology New Taipei City 24305 Taiwan ROC
| | - Chih-Wei Chiu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology No. 43, Keelung Rd., Sec. 4, Da'an Dist Taipei 10607 Taiwan ROC +886-2-2737-6544 +886-2-2737-6521
| | - Maw-Cherng Suen
- Department of Fashion Business Administration, Lee-Ming Institute of Technology No.22, Sec.3, Tailin Rd. Taishan Dist. New Taipei City 24305 Taiwan ROC +886-2-2909-7811 ext. 1101
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Effect of hydroxyapatite concentration and size on morpho-mechanical properties of PLA-based randomly oriented and aligned electrospun nanofibrous mats. J Mech Behav Biomed Mater 2019; 101:103449. [PMID: 31563845 DOI: 10.1016/j.jmbbm.2019.103449] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/11/2019] [Accepted: 09/23/2019] [Indexed: 12/19/2022]
Abstract
The growing demand for nanofibrous biocomposites able to provide peculiar properties requires systematic investigations of processing-structure-property relationships. Understanding the morpho-mechanical properties of an electrospun scaffold as a function of the filler features and mat microstructure can aid in designing these systems. In this work, the reinforcing effect of micrometric and nanometric hydroxyapatite particles in polylactic acid-based electrospun scaffold presenting random and aligned fibers orientation, was evaluated. The particles incorporation was investigated trough Fourier transform infrared spectroscopy in attenuated total reflectance. The morphology of the nanofibers was analyzed through scanning electron microscopy and it was correlated with the viscosity of polymeric solutions studied by rheological measurements. Scaffolds were mechanical characterized with tensile tests in order to find a correlation between the preparation method and the strength of the mats. The influence of hydroxyapatite particles on the crystallinity of the composites was investigated by differential scanning calorimetry. Finally, cell culture assays with pre-osteoblatic cells were conducted on a selected composite scaffold in order to compare the cell proliferation and morphology with that of polylactic acid scaffolds. Based on the results, we can prove that polylactic acid/hydroxyapatite composites can be one of the biomaterials with the greatest potential for bone tissue regeneration.
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