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Ramirez SP, Hernandez I, Dorado ZN, Loyola CD, Roberson DA, Joddar B. Fibrin-Polycaprolactone Scaffolds for the Differentiation of Human Neural Progenitor Cells into Dopaminergic Neurons. ACS OMEGA 2024; 9:37063-37075. [PMID: 39246477 PMCID: PMC11375720 DOI: 10.1021/acsomega.4c03952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 09/10/2024]
Abstract
Parkinson's disease (PD), a progressive central nervous system disorder marked by involuntary movements, poses a significant challenge in neurodegenerative research due to the gradual degeneration of dopaminergic (DA) neurons. Early diagnosis and understanding of PD's pathogenesis could slow disease progression and improve patient management. In vitro modeling with DA neurons derived from human-induced pluripotent stem cell-derived neural progenitor cells (NPCs) offers a promising approach. These neurons can be cultured on electrospun (ES) nanofibrous polycaprolactone (PCL) scaffolds, but PCL's hydrophobic nature limits cell adhesion. We investigated the ability of ES PCL scaffolds coated with hydrophilic extracellular matrix-based biomaterials, including cell basement membrane proteins, Matrigel, and Fibrin, to enhance NPC differentiation into DA neurons. We hypothesized that fibrin-coated scaffolds would maximize differentiation based on fibrin's known benefits in neuronal tissue engineering. The scaffolds both coated and uncoated were characterized using scanning electron microscopy (SEM), transmission electron microscopy, Fourier transform infrared spectroscopy-attenuated total reflectance, and dynamic mechanical analysis to assess their properties. NPCs were seeded on the coated scaffolds, differentiated, and matured into DA neurons. Immunocytochemistry targeting tyrosine hydroxylase (TH) and SEM confirmed DA neuronal differentiation and morphological changes. Electrophysiology via microelectrode array recorded their neuronal firing. Results showed enhanced neurite extension, increased TH expression, and active electrical activity in cells on fibrin-coated scaffolds. Diluted fibrin coatings particularly promoted more pronounced neuronal differentiation and maturation. This study introduces a novel tissue-on-a-chip platform for neurodegenerative disease research using DA neurons.
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Affiliation(s)
- Salma P Ramirez
- Inspired Materials and Stem-Cell Based Tissue Engineering Lab (IMSTEL), The University of Texas at El Paso, El Paso, Texas 79968, United States
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Ivana Hernandez
- Inspired Materials and Stem-Cell Based Tissue Engineering Lab (IMSTEL), The University of Texas at El Paso, El Paso, Texas 79968, United States
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Zayra N Dorado
- Inspired Materials and Stem-Cell Based Tissue Engineering Lab (IMSTEL), The University of Texas at El Paso, El Paso, Texas 79968, United States
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Carla D Loyola
- Inspired Materials and Stem-Cell Based Tissue Engineering Lab (IMSTEL), The University of Texas at El Paso, El Paso, Texas 79968, United States
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - David A Roberson
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, Texas 79968, United States
- Polymer Extrusion Lab, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Binata Joddar
- Inspired Materials and Stem-Cell Based Tissue Engineering Lab (IMSTEL), The University of Texas at El Paso, El Paso, Texas 79968, United States
- Department of Metallurgical, Materials and Biomedical Engineering, The University of Texas at El Paso, El Paso, Texas 79968, United States
- Border Biomedical Research Center, The University of Texas at El Paso, 500 W. University Avenue, El Paso, Texas 79968, United States
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Arik N, Elcin E, Tezcaner A, Oktem HA. Biosensing of arsenic by whole-cell bacterial bioreporter immobilized on polycaprolactone (PCL) electrospun fiber. ENVIRONMENTAL TECHNOLOGY 2024; 45:4874-4886. [PMID: 37965791 DOI: 10.1080/09593330.2023.2283405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/19/2023] [Indexed: 11/16/2023]
Abstract
In recent years, heavy metals derived from several anthropogenic sources have both direct and indirect detrimental effects on the health of the environment and living organisms. Whole-cell bioreporters (WCBs) that can be used to monitor the levels of heavy metals in drinking and natural spring waters are important. In this study, whole-cell arsenic bacterial bioreporters were immobilized using polycaprolactone (PCL) electrospun fibers as the support material. The aim is to determine the properties of this immobilized bioreporter system by evaluating its performance in arsenic detection. Within the scope of the study, different growth media and fiber immobilization times were tested to determine the parameters affecting the fluorescent signals emitted by the immobilized bioreporter system in the presence of two dominant forms of arsenic, namely arsenite (As(III)) and arsenate (As(V)). In addition, the sensitivity, selectivity, response time, and shelf-life of the developed bioreporter system were evaluated. As far as the literature is concerned, this is the first study to investigate the potential of using PCL-electrospun fiber-immobilized fluorescent bacterial bioreporter for arsenic detection. This study will open new avenues in environmental arsenic monitoring.
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Affiliation(s)
- Nehir Arik
- Department of Molecular Biology and Genetics, Middle East Technical University, Ankara, Türkiye
| | - Evrim Elcin
- Department of Agricultural Biotechnology, Aydın Adnan Menderes University, Aydın, Türkiye
| | - Aysen Tezcaner
- Department of Engineering Sciences, Middle East Technical University, Ankara, Türkiye
- Center of Excellence in Biomaterials and Tissue Engineering (METU BIOMATEN), Ankara, Türkiye
| | - Huseyin A Oktem
- Department of Molecular Biology and Genetics, Middle East Technical University, Ankara, Türkiye
- Department of Biological Sciences, Middle East Technical University, Ankara, Türkiye
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3
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Hoseini M, Hamidi S, Salehi E, Mohammadi A, Mirhoseini F, Ravaghi M. Multi-variate multi-objective optimization of production conditions for electro-spun skin scaffold using RSM and investigation of gamma irradiation effects on the properties of the optimized sample. Heliyon 2024; 10:e32941. [PMID: 39021952 PMCID: PMC11252863 DOI: 10.1016/j.heliyon.2024.e32941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 07/20/2024] Open
Abstract
Developing electro-spun scaffolds with ideal mechanical properties for skin purposes can profit from using the Response Surface Methodology technique to define and optimize the outcome quality and required sterilization for use in vivo. This study investigated the effects of four main independent electrospinning variables for polycaprolactone nanofibers scaffold using multi-variable and multi-objective optimization. It was done to determine significant parameters on responses and find optimal conditions to reach the preferred properties. Young's modulus, elongation-at-break, and tensile strength were the responses. After obtaining appropriate models, the impact share of variables on the responses was determined using Sobol sensitivity analysis. The results showed that flow rate is the most significant parameter of elastic modulus and tensile strength responses, with 76.45 % and 41.27 % impact shares, respectively. The polymer concentration is the following significant parameter on elongation at break, tensile strength and, Young's modulus responses with 64.35 %, 39.485 and, 14.28 % impact share, respectively. Based on the optimized results, a skin scaffold with desired mechanical properties was achieved (under solution concentration of 10 % w/v, flow rate of 2 mL/h, nuzzle-collector distance of 15 cm, and applied voltage of 20 kV). Then it was sterilized with gamma radiation of various doses (25, 40, and 55 kGy) to use in vivo. The SEM analysis indicated no significant change in fibrous morphology due to gamma irradiation at any dosage. FTIR analysis demonstrated the breakup of ester bonds due to gamma irradiation. For samples irradiated by 25 kGy, the crystallinity percentage decreased and chains crosslinking without losing the mechanical stability was dominant. The studies demonstrated that 25 kGy of gamma irradiation could improve the mechanical properties of the optimized PCL skin scaffold, which is very promising for wound healing.
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Affiliation(s)
- M. Hoseini
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - S. Hamidi
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - E. Salehi
- Chemical Engineering Department, Faculty of Engineering, Arak University, P.O. Box: 38156, Arak, Iran
| | - A. Mohammadi
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - F. Mirhoseini
- Department of Chemistry, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
| | - M. Ravaghi
- Department of Physics, Faculty of Science, Arak University, P.O. Box: 38156, Arak, Iran
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4
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Iwoń Z, Krogulec E, Tarnowska I, Łopianiak I, Wojasiński M, Dobrzyń A, Jastrzębska E. Maturation of human cardiomyocytes derived from induced pluripotent stem cells (iPSC-CMs) on polycaprolactone and polyurethane nanofibrous mats. Sci Rep 2024; 14:12975. [PMID: 38839879 PMCID: PMC11153585 DOI: 10.1038/s41598-024-63905-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024] Open
Abstract
Investigating the potential of human cardiomyocytes derived from induced pluripotent stem cells (iPSC-CMs) in in vitro heart models is essential to develop cardiac regenerative medicine. iPSC-CMs are immature with a fetal-like phenotype relative to cardiomyocytes in vivo. Literature indicates methods for enhancing the structural maturity of iPSC-CMs. Among these strategies, nanofibrous scaffolds offer more accurate mimicry of the functioning of cardiac tissue structures in the human body. However, further research is needed on the use of nanofibrous mats to understand their effects on iPSC-CMs. Our research aimed to evaluate the suitability of poly(ε-caprolactone) (PCL) and polyurethane (PU) nanofibrous mats with different elasticities as materials for the maturation of iPSC-CMs. Analysis of cell morphology and orientation and the expression levels of selected genes and proteins were performed to determine the effect of the type of nanofibrous mats on the maturation of iPSC-CMs after long-term (10-day) culture. Understanding the impact of 3D structural properties in in vitro cardiac models on induced pluripotent stem cell-derived cardiomyocyte maturation is crucial for advancing cardiac tissue engineering and regenerative medicine because it can help optimize conditions for obtaining more mature and functional human cardiomyocytes.
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Affiliation(s)
- Zuzanna Iwoń
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Ewelina Krogulec
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology PAS, Warsaw, Poland
| | - Inez Tarnowska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Iwona Łopianiak
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Michał Wojasiński
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Agnieszka Dobrzyń
- Laboratory of Cell Signaling and Metabolic Disorders, Nencki Institute of Experimental Biology PAS, Warsaw, Poland
| | - Elżbieta Jastrzębska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland.
- Centre for Advanced Materials and Technologies, CEZAMAT Warsaw University of Technology, Warsaw, Poland.
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5
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Sanchez Armengol E, Hock N, Saribal S, To D, Summonte S, Veider F, Kali G, Bernkop-Schnürch A, Laffleur F. Unveiling the potential of biomaterials and their synergistic fusion in tissue engineering. Eur J Pharm Sci 2024; 196:106761. [PMID: 38580169 DOI: 10.1016/j.ejps.2024.106761] [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: 01/10/2024] [Revised: 03/17/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
Inspired by nature, tissue engineering aims to employ intricate mechanisms for advanced clinical interventions, unlocking inherent biological potential and propelling medical breakthroughs. Therefore, medical, and pharmaceutical fields are growing interest in tissue and organ replacement, repair, and regeneration by this technology. Three primary mechanisms are currently used in tissue engineering: transplantation of cells (I), injection of growth factors (II) and cellular seeding in scaffolds (III). However, to develop scaffolds presenting highest potential, reinforcement with polymeric materials is growing interest. For instance, natural and synthetic polymers can be used. Regardless, chitosan and keratin are two biopolymers presenting great biocompatibility, biodegradability and non-antigenic properties for tissue engineering purposes offering restoration and revitalization. Therefore, combination of chitosan and keratin has been studied and results exhibit highly porous scaffolds providing optimal environment for tissue cultivation. This review aims to give an historical as well as current overview of tissue engineering, presenting mechanisms used and polymers involved in the field.
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Affiliation(s)
- Eva Sanchez Armengol
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Nathalie Hock
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria; ITM Isotope Technologies Munich SE, Walther-von-Dyck Str. 4, 85748, Garching bei Munich, Germany
| | - Sila Saribal
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Dennis To
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Simona Summonte
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria; ThioMatrix Forschungs- und Beratungs GmbH, Trientlgasse 65, 6020, Innsbruck, Austria
| | - Florina Veider
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria; Sandoz, Biochemiestraße 10, 6250, Kundl, Austria
| | - Gergely Kali
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Flavia Laffleur
- Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria.
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6
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Raghunathan S, Kandasamy S, Balakrishna Pillai A, Senthilathiban DP, Thajuddin N, Rasool Kamli M, Sabir JSM, Lee SY, Kim JW, Davoodbasha M. Synthesis of biocomposites from microalgal peptide incorporated polycaprolactone/ κ- carrageenan nanofibers and their antibacterial and wound healing property. Int J Pharm 2024; 655:124052. [PMID: 38552751 DOI: 10.1016/j.ijpharm.2024.124052] [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: 12/16/2023] [Revised: 03/20/2024] [Accepted: 03/24/2024] [Indexed: 04/07/2024]
Abstract
Antimicrobial peptides (AMPs) are promising novel agents for targeting a wide range of pathogens. In this study, microalgal peptides derived from native microalgae were incorporated into polycaprolactone (PCL) with ƙ-Carrageenan (ƙ-C) forming nanofibers using the electrospinning method. The peptides incorporated in the nanofibers were characterized by fourier infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy (SEM), and contact angle measurement. The results showed that peptides with molecular weights < 10 kDa, when loaded into nanofibers, exhibited lower wettability. The SEM analysis revealed a thin, smooth, interconnected bead-like structures. The antimicrobial activity of the electrospun nanofibers was evaluated through disc diffusion, and minimum inhibitory activity against Escherichia coli (MTTC 443), and Staphylococcus aureus (MTTC 96), resulting in zones of inhibition of 24 ± 0.5 mm and 14 ± 0.5 mm, respectively. The in vitro biocompatibility of the synthesized nanofibers was confirmed using in HEK 293 cell lines with an increased cell viability. Interestingly, the fibers also exhibited a significant wound-healing properties when used in vitro scratch assays. In conclusion, algal peptides incorporated with PCL/ ƙ-C were found to exhibit antimicrobial and biocompatible biomaterials for wound healing applications.
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Affiliation(s)
- Sathya Raghunathan
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 620048, India
| | - Sangeetha Kandasamy
- Department of Physics, Muthayammamal College of Arts and Sciences, Rasipuram - 637408, Tamil Nadu, India
| | | | | | - Nooruddin Thajuddin
- Crescent Global Outreach Mission (CGOM), B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 620048, India
| | - Majid Rasool Kamli
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Center of Excellence in Bionanoscience Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Jamal S M Sabir
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Center of Excellence in Bionanoscience Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sang-Yul Lee
- Centre for Surface Technology and Applications, Department of Material Engineering, Korea Aerospace University, Goyang 10540, Republic of Korea
| | - Jung-Wan Kim
- Centre for Surface Technology and Applications, Department of Material Engineering, Korea Aerospace University, Goyang 10540, Republic of Korea; Research Center for Bio Material and Process Development, Division of Bioengineering, Incheon National University, Incheon 22012, Republic of Korea.
| | - MubarakAli Davoodbasha
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 620048, India; Crescent Global Outreach Mission (CGOM), B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai 620048, India; Centre for Surface Technology and Applications, Department of Material Engineering, Korea Aerospace University, Goyang 10540, Republic of Korea; Research Center for Bio Material and Process Development, Division of Bioengineering, Incheon National University, Incheon 22012, Republic of Korea.
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7
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Milián L, Oliver-Ferrándiz M, Peregrín I, Sancho-Tello M, Martín-de-Llano JJ, Martínez-Ramos C, Carda C, Mata M. Alginate Improves the Chondrogenic Capacity of 3D PCL Scaffolds In Vitro: A Histological Approach. Curr Issues Mol Biol 2024; 46:3563-3578. [PMID: 38666953 PMCID: PMC11048942 DOI: 10.3390/cimb46040223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/27/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Polycaprolactone (PCL) scaffolds have demonstrated an effectiveness in articular cartilage regeneration due to their biomechanical properties. On the other hand, alginate hydrogels generate a 3D environment with great chondrogenic potential. Our aim is to generate a mixed PCL/alginate scaffold that combines the chondrogenic properties of the two biomaterials. Porous PCL scaffolds were manufactured using a modified salt-leaching method and embedded in a culture medium or alginate in the presence or absence of chondrocytes. The chondrogenic capacity was studied in vitro. Type II collagen and aggrecan were measured by immunofluorescence, cell morphology by F-actin fluorescence staining and gene expression of COL1A1, COL2A1, ACAN, COL10A1, VEGF, RUNX1 and SOX6 by reverse transcription polymerase chain reaction (RT-PCR). The biocompatibility of the scaffolds was determined in vivo using athymic nude mice and assessed by histopathological and morphometric analysis. Alginate improved the chondrogenic potential of PCL in vitro by increasing the expression of type II collagen and aggrecan, as well as other markers related to chondrogenesis. All scaffolds showed good biocompatibility in the in vivo model. The presence of cells in the scaffolds induced an increase in vascularization of the PCL/alginate scaffolds. The results presented here reinforce the benefits of the combined use of PCL and alginate for the regeneration of articular cartilage.
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Affiliation(s)
- Lara Milián
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
| | - María Oliver-Ferrándiz
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
| | - Ignacio Peregrín
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
- IMED Hospital, 46100 Valencia, Spain
| | - María Sancho-Tello
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
| | - José Javier Martín-de-Llano
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
| | - Cristina Martínez-Ramos
- Centro de Biomateriales e Ingeniería Tisular (CBIT), Universitat Politècnica de València, Camino de Vera, s/n Ciudad Politécnica de la Innovación, Edificio 8E. Acceso F. Nivel 1, 46022 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Carmen Carda
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Manuel Mata
- Department of Pathology, Faculty of Medicine and Dentistry, Universitat de València, Blasco Ibáñez Avenue, 15, 46010 Valencia, Spain
- INCLIVA Biomedical Research Institute, Menéndez y Pelayo Street, 4, 46010 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
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8
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Wasyłeczko M, Wojciechowski C, Chwojnowski A. Polyethersulfone Polymer for Biomedical Applications and Biotechnology. Int J Mol Sci 2024; 25:4233. [PMID: 38673817 PMCID: PMC11049998 DOI: 10.3390/ijms25084233] [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: 03/07/2024] [Revised: 04/03/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Polymers stand out as promising materials extensively employed in biomedicine and biotechnology. Their versatile applications owe much to the field of tissue engineering, which seamlessly integrates materials engineering with medical science. In medicine, biomaterials serve as prototypes for organ development and as implants or scaffolds to facilitate body regeneration. With the growing demand for innovative solutions, synthetic and hybrid polymer materials, such as polyethersulfone, are gaining traction. This article offers a concise characterization of polyethersulfone followed by an exploration of its diverse applications in medical and biotechnological realms. It concludes by summarizing the significant roles of polyethersulfone in advancing both medicine and biotechnology, as outlined in the accompanying table.
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Affiliation(s)
- Monika Wasyłeczko
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ksiecia Trojdena 4, 02-109 Warsaw, Poland; (C.W.); (A.C.)
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9
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Shabeena M, Warale D, Prabhu A, Kouser S, Manasa DJ, Nagaraja GK. Pectin wrapped halloysite nanotube reinforced Polycaprolactone films for potential wound healing application. Int J Biol Macromol 2024; 262:130140. [PMID: 38365152 DOI: 10.1016/j.ijbiomac.2024.130140] [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: 06/19/2023] [Revised: 02/05/2024] [Accepted: 02/11/2024] [Indexed: 02/18/2024]
Abstract
The current research work focuses on preparing the polycaprolactone (PCL) based nanocomposite films embedded with surface modified Halloysite Nanotube (HNT). The avenue of the study is to unravel the applicability of polymer nanocomposites for wound healing. The flexible property of HNT was taken as the major force to accomplish the addition of biopolymer pectin onto its surface. Functionalization of HNT with pectin has certainly enhanced its binding nature with the polymer. The PCL nanocomposite films were characterized by several promising techniques such as FTIR, XRD, DSC-TGA, FESEM, TEM, AFM, and mechanical properties were too examined along. When compared to the plane PCL film, the nanocomposite films manifested favorable results in terms of mechanical and chemical properties. Additionally, biometric studies such as in-vitro swelling, enzymatic degradation, and hemolysis performed on the films gave extremely good results. The haemolytic percentage recorded for the films exhibited a steady decrease with increasing amount of nanofillers. The MTT assay showed cell proliferation and its increase as the embedded HNT is more in the matrix. Wound closure study performed on NIH3T3 cell line with 1, 3 and 5wt% of films has given a strong proof for the involvement of polymer and HNT in the healing procedure.
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Affiliation(s)
- M Shabeena
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 Dakshina Kannada, Karnataka, India
| | - Deepali Warale
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 Dakshina Kannada, Karnataka, India
| | - Ashwini Prabhu
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
| | - Sabia Kouser
- Department of P.G.Studies in chemistry, Karnataka Science College, Dharwad 577007, Karnataka, India
| | - D J Manasa
- Department of Botany, Davangere university, Davangere 577007, Karnataka, India
| | - G K Nagaraja
- Department of Post-Graduate Studies & Research in Chemistry, Mangalore University, Mangalagangothri, 574199 Dakshina Kannada, Karnataka, India.
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10
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Mohammadi A, Koruji M, Azami M, Shabani R, Mohandesnezhad S, Bashiri Z, Asgari H. Polycaprolactone/Testicular Extracellular Matrix/Graphene Oxide-Based Electrospun Tubular Scaffolds for Reproductive Medicine: Biomimetic Architecture of Seminiferous Tubules. Macromol Biosci 2024; 24:e2300342. [PMID: 37729950 DOI: 10.1002/mabi.202300342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/06/2023] [Indexed: 09/22/2023]
Abstract
Numerous scaffolds are developed in the field of testicular bioengineering. However, effectively replicating the spatial characteristics of native tissue, poses a challenge in maintaining the requisite cellular arrangement essential for spermatogenesis. In order to mimic the structural properties of seminiferous tubules, the objective is to fabricate a biocompatible tubular scaffold. Following the decellularization process of the testicular tissue, validation of cellular remnants' elimination from the specimens is conducted using 4',6-diamidino-2-phenylindole staining, hematoxylin and eosin staining, and DNA content analysis. The presence of extracellular matrix (ECM) components is confirmed through Alcian blue, Orcein, and Masson's trichrome staining techniques. The electrospinning technique is employed to synthesize the scaffolds using polycaprolactone (PCL), extracted ECM, and varying concentrations of graphene oxide (GO) (0.5%, 1%, and 2%). Subsequently, comprehensive evaluations are performed to assess the properties of the synthetic scaffolds. These evaluations encompass Fourier-transform infrared spectroscopy, scanning electron microscopy imaging, scaffold degradation testing, mechanical behavior analysis, methylthiazolyldiphenyl-tetrazolium bromide assay, and in vivo biocompatibility assessment. The PCL/decellularized extracellular matrix with 0.5% GO formulation exhibits superior fiber morphology and enhanced mechanical properties, and outperforms other groups in terms of in vitro biocompatibility. Consequently, these scaffolds present a viable option for implementation in "in vitro spermatogenesis" procedures, holding promise for future sperm production from spermatogonial cells.
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Affiliation(s)
- Amirhossein Mohammadi
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 88770048, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
| | - Morteza Koruji
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 88770048, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
| | - Mahmoud Azami
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
- Joint Reconstruction Research Center (JRRC), Tehran University of Medical Sciences, Tehran, 1417755469, Iran
| | - Ronak Shabani
- Reproductive Sciences and Technology Research Center, Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Sanam Mohandesnezhad
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
| | - Zahra Bashiri
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, 6517789971, Iran
- Omid Fertility & Infertility Clinic, Hamedan, 6516796198, Iran
| | - Hamidreza Asgari
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, 88770048, Iran
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, 1449614525, Iran
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11
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Rahimkhoei V, Padervand M, Hedayat M, Seidi F, Dawi EA, Akbari A. Biomedical applications of electrospun polycaprolactone-based carbohydrate polymers: A review. Int J Biol Macromol 2023; 253:126642. [PMID: 37657575 DOI: 10.1016/j.ijbiomac.2023.126642] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
Carbohydrate used in biomedical applications is influenced by numerous factors. One of the most appealing characteristic of carbohydrates is their ability to reproduce from natural resources which makes them ecologically friendly. Due to their abundance, biocompatibility, and no contamination by residual initiators, the desire for polysaccharides in medical uses is growing. Research on fiber-based materials, with a variety of medical applications including bio-functional scaffolds, continues to yield novel and intriguing findings. Almost all biopolymers of diverse structural compositions are electrospun to fulfill biomedical usage criteria, and the electrospinning technique is widely employed in biomedical technologies for both in-vivo and in-vitro therapies. Due to its biocompatibility and biodegradability, polycaprolactone (PCL) is employed in medical applications like tissue engineering and drug delivery. Although PCL nanofibers have established effects in vitro, more research is needed before their potential therapeutic application in the clinic. Here we tried to focus mainly on the carbohydrate incorporated PCL-based nanofibers production techniques, structures, morphology, and physicochemical properties along with their usage in biomedicine.
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Affiliation(s)
- Vahid Rahimkhoei
- Solid Tumor Research Center, Cellular and Molecular Research Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohsen Padervand
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O Box 55181-83111, Maragheh, Iran
| | - Mohaddeseh Hedayat
- Department of Phramacology and Toxicology, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Farzad Seidi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources and Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China
| | - E A Dawi
- Nonlinear Dynamics Research Center (NDRC), Ajman University, Ajman, P.O. Box 346, United Arab Emirates
| | - Ali Akbari
- Solid Tumor Research Center, Cellular and Molecular Research Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.
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12
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Lázár I, Čelko L, Menelaou M. Aerogel-Based Materials in Bone and Cartilage Tissue Engineering-A Review with Future Implications. Gels 2023; 9:746. [PMID: 37754427 PMCID: PMC10530393 DOI: 10.3390/gels9090746] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023] Open
Abstract
Aerogels are fascinating solid materials known for their highly porous nanostructure and exceptional physical, chemical, and mechanical properties. They show great promise in various technological and biomedical applications, including tissue engineering, and bone and cartilage substitution. To evaluate the bioactivity of bone substitutes, researchers typically conduct in vitro tests using simulated body fluids and specific cell lines, while in vivo testing involves the study of materials in different animal species. In this context, our primary focus is to investigate the applications of different types of aerogels, considering their specific materials, microstructure, and porosity in the field of bone and cartilage tissue engineering. From clinically approved materials to experimental aerogels, we present a comprehensive list and summary of various aerogel building blocks and their biological activities. Additionally, we explore how the complexity of aerogel scaffolds influences their in vivo performance, ranging from simple single-component or hybrid aerogels to more intricate and organized structures. We also discuss commonly used formulation and drying methods in aerogel chemistry, including molding, freeze casting, supercritical foaming, freeze drying, subcritical, and supercritical drying techniques. These techniques play a crucial role in shaping aerogels for specific applications. Alongside the progress made, we acknowledge the challenges ahead and assess the near and far future of aerogel-based hard tissue engineering materials, as well as their potential connection with emerging healing techniques.
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Affiliation(s)
- István Lázár
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary
| | - Ladislav Čelko
- Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00 Brno, Czech Republic;
| | - Melita Menelaou
- Department of Chemical Engineering, Cyprus University of Technology, 30 Arch. Kyprianos Str., Limassol 3036, Cyprus
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Lotfi Z, Khakbiz M, Davari N, Bonakdar S, Mohammadi J, Shokrgozar MA, Derhambakhsh S. Fabrication and multiscale modeling of polycaprolactone/amniotic membrane electrospun nanofiber scaffolds for wound healing. Artif Organs 2023; 47:1267-1284. [PMID: 36869662 DOI: 10.1111/aor.14518] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 02/03/2023] [Accepted: 03/01/2023] [Indexed: 03/05/2023]
Abstract
BACKGROUND Enhancing the efficiency of cell-based skin tissue engineering (TE) approaches is possible via designing electrospun scaffolds possessing natural materials like amniotic membrane (AM) with wound healing characteristics. Concentrating on this aim, we fabricated innovative polycaprolactone (PCL)/AM scaffolds through the electrospinning process. METHODS The manufactured structures were characterized by employing scanning electron microscope (SEM), attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy, tensile testing, Bradford protein assay, etc. In addition, the mechanical properties of scaffolds were simulated by the multiscale modeling method. RESULTS As a result of conducting various tests, it was concluded that the uniformity and distribution of fibers decreased with an increase in the amniotic content. Furthermore, PCL-AM scaffolds contained amniotic and PCL characteristic bands. In the case of protein release, greater content of AM led to the release of higher amounts of collagen. Tensile testing revealed that scaffolds' ultimate strength increased when the AM content augmented. The multiscale modeling demonstrated that the scaffold had elastoplastic behavior. In order to assess cellular attachment, viability, and differentiation, human adipose-derived stem cells (ASCs) were seeded on the scaffolds. In this regard, SEM and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assays showed significant cellular proliferation and viability on the proposed scaffolds, and these analyses illustrated that higher cell survival and adhesion could be achieved when scaffolds possessed a larger amount of AM. After 21 days of cultivation, particular keratinocyte markers, such as keratin I and involucrin, were identified through utilizing immunofluorescence and real-time polymerase chain reaction (PCR) tests. The markers' expressions were higher in the PCL-AM scaffold with a ratio of 90:10 v v-1 compared with the PCL-epidermal growth factor (EGF) structure. Moreover, the presence of AM in the scaffolds resulted in the keratinogenic differentiation of ASCs even without employing EGF. Consequently, this state-of-the-art experiment suggests that the PCL-AM scaffold can be a promising candidate in skin bioengineering. CONCLUSION This study showed that mixing AM with PCL, a widely used polymer, in different concentrations can overcome PCL disadvantages such as high hydrophobicity and low cellular compatibility.
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Affiliation(s)
- Zahra Lotfi
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
- Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Niyousha Davari
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Shahin Bonakdar
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | | | - Sara Derhambakhsh
- Division of Biomedical Engineering, Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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Wasyłeczko M, Remiszewska E, Sikorska W, Dulnik J, Chwojnowski A. Scaffolds for Cartilage Tissue Engineering from a Blend of Polyethersulfone and Polyurethane Polymers. Molecules 2023; 28:molecules28073195. [PMID: 37049957 PMCID: PMC10095814 DOI: 10.3390/molecules28073195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
In recent years, one of the main goals of cartilage tissue engineering has been to find appropriate scaffolds for hyaline cartilage regeneration, which could serve as a matrix for chondrocytes or stem cell cultures. The study presents three types of scaffolds obtained from a blend of polyethersulfone (PES) and polyurethane (PUR) by a combination of wet-phase inversion and salt-leaching methods. The nonwovens made of gelatin and sodium chloride (NaCl) were used as precursors of macropores. Thus, obtained membranes were characterized by a suitable structure. The top layers were perforated, with pores over 20 µm, which allows cells to enter the membrane. The use of a nonwoven made it possible to develop a three-dimensional network of interconnected macropores that is required for cell activity and mobility. Examination of wettability (contact angle, swelling ratio) showed a hydrophilic nature of scaffolds. The mechanical test showed that the scaffolds were suitable for knee joint applications (stress above 10 MPa). Next, the scaffolds underwent a degradation study in simulated body fluid (SBF). Weight loss after four weeks and changes in structure were assessed using scanning electron microscopy (SEM) and MeMoExplorer Software, a program that estimates the size of pores. The porosity measurements after degradation confirmed an increase in pore size, as expected. Hydrolysis was confirmed by Fourier-transform infrared spectroscopy (FT-IR) analysis, where the disappearance of ester bonds at about 1730 cm−1 wavelength is noticeable after degradation. The obtained results showed that the scaffolds meet the requirements for cartilage tissue engineering membranes and should undergo further testing on an animal model.
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Affiliation(s)
- Monika Wasyłeczko
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland
| | - Elżbieta Remiszewska
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland
| | - Wioleta Sikorska
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland
| | - Judyta Dulnik
- Institute of Fundamental Technological Research Polish Academy of Sciences, Laboratory of Polymers and Biomaterials, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Andrzej Chwojnowski
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4, 02-109 Warsaw, Poland
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15
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Nezamoleslami S, Fattahi A, Nemati H, Bagrezaie F, Pourmanouchehri Z, Kiaie SH. Electrospun sandwich-structured of polycaprolactone/gelatin-based nanofibers with controlled release of ceftazidime for wound dressing. Int J Biol Macromol 2023; 236:123819. [PMID: 36870631 DOI: 10.1016/j.ijbiomac.2023.123819] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 06/24/2022] [Accepted: 02/19/2023] [Indexed: 03/06/2023]
Abstract
In the present work, sandwich-like polycaprolactone/gelatin/polycaprolactone electrospun multilayered mats were implemented to control the release of ceftazidime (CTZ). The outer layers were made from polycaprolactone nanofibers (NFs), and CTZ-loaded gelatin provided an internal layer. The release profile of CTZ from mats was compared with monolayer gelatin mats and chemically cross-linked GEL mats. All the constructs were characterized using scanning electron microscopy (SEM), mechanical properties, viscosity, electrical conductivity, X-ray diffraction (XRD), and Fourier transform-infrared spectroscopy (FT-IR). In vitro cytotoxicity against normal fibroblasts as well as antibacterial activity of CTZ-loaded sandwich-like NFs were investigated by the MTT assay. The results showed that the drug release rate from the polycaprolactone/gelatin/polycaprolactone mat was slower than that of gelatin monolayer NFs, and the rate of release can be adjusted by changing the thickness of hydrophobic layers. The NFs exhibited high activity against Pseudomonas aeruginosa and Staphylococcus aureus, while no significant cytotoxicity was observed against human normal cells. Altogether, the final mat as a predominant antibacterial scaffold can be used for controlled drug release of antibacterial drugs as the wound healing dressings in tissue engineering.
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Affiliation(s)
- Sadaf Nezamoleslami
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran; Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Fattahi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Houshang Nemati
- Fertility & Infertility Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Bagrezaie
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Zahra Pourmanouchehri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran.
| | - Seyed Hossein Kiaie
- Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
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16
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Sachan R, Warkar SG, Purwar R. An overview on synthesis, properties and applications of polycaprolactone copolymers, blends & composites. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2113890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Radha Sachan
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry, Delhi Technological University, Delhi, India
| | - Sudhir G. Warkar
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry, Delhi Technological University, Delhi, India
| | - Roli Purwar
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry, Delhi Technological University, Delhi, India
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17
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Goreninskii S, Yuriev Y, Runts A, Prosetskaya E, Sviridova E, Plotnikov E, Stankevich K, Bolbasov E. Pulsed Vacuum Arc Deposition of Nitrogen-Doped Diamond-like Coatings for Long-Term Hydrophilicity of Electrospun Poly(ε-caprolactone) Scaffolds. MEMBRANES 2022; 12:1080. [PMID: 36363635 PMCID: PMC9695898 DOI: 10.3390/membranes12111080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/25/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
The surface hydrophobicity of poly(ε-caprolactone) electrospun scaffolds prevents their interactions with cells and tissue integration. Although plasma treatment of scaffolds enhances their hydrophilicity, this effect is temporary, and the hydrophobicity of the scaffolds is restored in about 30 days. In this communication, we report a method for hydrophilization of poly(ε-caprolactone) electrospun scaffolds for more than 6 months. To that end, diamond-like coating was deposited on the surface of the scaffolds in a nitrogen atmosphere using pulsed vacuum arc deposition with sputtering of graphite target. This approach allows for a single-side hydrophilization of the scaffold (water contact angle of 22 ± 3° vs. 126 ± 2° for pristine PCL scaffold) and preserves its structure. With increased nitrogen pressure in the chamber, sp3-hybridized carbon content decreased twice (sp2/sp3 ratio decreased from 1.06 to 0.52), which demonstrates the possibility of tailoring the content of carbon in sp2 and sp3 hybridization state. Nitrogen content in the deposited coatings was found at 16.1 ± 0.9 at.%. In vitro tests with fibroblast cell culture did not reveal any cytotoxic compounds in sample extracts.
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Affiliation(s)
- Semen Goreninskii
- B.P. Veinberg Research and Educational Centre, Tomsk Polytechnic University, 634050 Tomsk, Russia
- Onconanotheranostics Laboratory, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia
| | - Yuri Yuriev
- B.P. Veinberg Research and Educational Centre, Tomsk Polytechnic University, 634050 Tomsk, Russia
- Microwave Photonics Lab, V.E. Zuev Institute of Atmospheric Optics SB RAS, 634055 Tomsk, Russia
| | - Artem Runts
- B.P. Veinberg Research and Educational Centre, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Elisaveta Prosetskaya
- B.P. Veinberg Research and Educational Centre, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Elizaveta Sviridova
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Evgenii Plotnikov
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Ksenia Stankevich
- Chemistry and Biochemistry Department, Montana State University, Bozeman, MT 59717, USA
| | - Evgeniy Bolbasov
- B.P. Veinberg Research and Educational Centre, Tomsk Polytechnic University, 634050 Tomsk, Russia
- Microwave Photonics Lab, V.E. Zuev Institute of Atmospheric Optics SB RAS, 634055 Tomsk, Russia
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18
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Mosallanezhad P, Nazockdast H, Ahmadi Z, Rostami A. Fabrication and characterization of polycaprolactone/chitosan nanofibers containing antibacterial agents of curcumin and ZnO nanoparticles for use as wound dressing. Front Bioeng Biotechnol 2022; 10:1027351. [PMID: 36213068 PMCID: PMC9539460 DOI: 10.3389/fbioe.2022.1027351] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 09/09/2022] [Indexed: 11/24/2022] Open
Abstract
The potential of the nanoscale structure is utilized by electrospun nanofibers, which are promising materials for wound dressings. Here, we prepared wound dressings constituting polycaprolactone (PCL) and chitosan (CS). Curcumin (Cur) and zinc oxide nanoparticles (ZnO) as antibacterial agents were embedded in PCL/CS electrospun nanofibers and different properties including morphology, physicomechanical, interaction with water, antibacterial efficiency, and in vitro studies were investigated. SEM images confirmed the nanofibrous structure of samples with 100 ± 5 to 212 ± 25 nm in average diameter. Elemental analysis of nanofibers showed a good distribution of ZnO along nanofibers which not only caused decreasing in nanofiber diameter but also increased tensile strength of nanofibers up to 2.9 ± 0.5 MPa and with good elongation at break of 39 ± 2.9. ZnO nanoparticles also facilitated the interaction of nanofibers with water, and this led to the highest water vapor transition rate, which was equal to 0.28 ± 0.02 g cm−2 day−1. The sample containing 3 wt% Cur had the highest water uptake value (367 ± 15%) and the lowest water contact angle (78 ± 3.7°), although Cur has a hydrophobic nature. The release profile of Cur showed a two-stage release and the Peppas model predicted a non-fickian diffusion. Simultaneous incorporation of CS, ZnO, and Cur effectively inhibited bacterial growth. In addition, in vitro studies represented that high content of Cur decreases cell viability and cell attachment. The outcomes from the fabricated nanofibrous scaffolds demonstrated appropriate properties for application as a wound dressing.
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Affiliation(s)
- Pezhman Mosallanezhad
- Department of Polymer Engineering, Amirkabir University of Technology, Mahshahr, Iran
| | - Hossein Nazockdast
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
- *Correspondence: Hossein Nazockdast,
| | - Zahed Ahmadi
- Department of Chemistry, Amirkabir University of Technology, Tehran, Iran
| | - Amir Rostami
- Department of Chemical Engineering, Faculty of Petroleum, Gas, and Petrochemical Engineering, Persian Gulf University, Bushehr, Iran
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19
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Zhu N, Meng S, Li J, Liu T, Rohani S. Fenugreek Extract-Loaded Polycaprolacton/Cellulose Acetate Nanofibrous Wound Dressings for Transplantation of Unrestricted Somatic Stem Cells: An In Vitro and In Vivo Evaluation. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Complex pathophysiology of diabetic wounds causes a delayed wound healing response. Advanced wound dressing materials that deliver biochemical cues are of particular interest in wound healing research. Here, we developed a dual-function delivery vehicle for drug and cell delivery applications
to treat diabetic wounds. The delivery system was developed via electrospinning of polycaprolacton/cellulose acetate solution containing fenugreek extract. The produced delivery vehicle was characterized using microstructural studies, cell viability assay, cytoprotection assay, cell migration
assay, In Vitro anti-inflammatory assay, free radical scavenging assay, tensile strength studies, swelling studies, and protein adsorption test. Scaffolds were then seeded with 30000 unrestricted somatic stem cells and transplanted into the rat model of excisional diabetic wound. Wound
healing assay showed that the co-delivery of fenugreek extract and unrestricted somatic stem cells led to a substantial improvement in the healing activity of electrospun dressings, as evidenced by higher wound contraction, epithelial thickness, and collagen deposition in this group compared
with other experimental groups. Gene expression analysis showed that dual-function delivery system could increase the expression level of VEGF, b-FGF, and collagen type II genes. Furthermore, the tissue expression level of IL-1β and glutathione peroxidase genes was significantly
reduced in this group compared with other groups. This study shows that the developed system may be considered as a potential treatment modality for diabetic wounds in the clinic.
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Affiliation(s)
- Na Zhu
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Shuai Meng
- Department of Pharmacy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin 300060,
People’s Republic of China
| | - Jianchun Li
- School of Pharmacy, Bengbu Medical College, Anhui Bengbu 233030, China
| | - Tianjun Liu
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Saeed Rohani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 1452365, Iran
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Loewner S, Heene S, Baroth T, Heymann H, Cholewa F, Blume H, Blume C. Recent advances in melt electro writing for tissue engineering for 3D printing of microporous scaffolds for tissue engineering. Front Bioeng Biotechnol 2022; 10:896719. [PMID: 36061443 PMCID: PMC9428513 DOI: 10.3389/fbioe.2022.896719] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
Melt electro writing (MEW) is a high-resolution 3D printing technique that combines elements of electro-hydrodynamic fiber attraction and melts extrusion. The ability to precisely deposit micro- to nanometer strands of biocompatible polymers in a layer-by-layer fashion makes MEW a promising scaffold fabrication method for all kinds of tissue engineering applications. This review describes possibilities to optimize multi-parametric MEW processes for precise fiber deposition over multiple layers and prevent printing defects. Printing protocols for nonlinear scaffolds structures, concrete MEW scaffold pore geometries and printable biocompatible materials for MEW are introduced. The review discusses approaches to combining MEW with other fabrication techniques with the purpose to generate advanced scaffolds structures. The outlined MEW printer modifications enable customizable collector shapes or sacrificial materials for non-planar fiber deposition and nozzle adjustments allow redesigned fiber properties for specific applications. Altogether, MEW opens a new chapter of scaffold design by 3D printing.
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Affiliation(s)
- Sebastian Loewner
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
- *Correspondence: Sebastian Loewner,
| | - Sebastian Heene
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Timo Baroth
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Henrik Heymann
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Fabian Cholewa
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Holger Blume
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Cornelia Blume
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
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21
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Gohari Z, Baghaei A, Mahboudi H, Hashemi J, Rahmati M, Islami M, Mansouri V. Ursolic acid incorporated nanofibers improves chondrogenic differentiation of mesenchymal stem cells. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zahra Gohari
- Department of Animal Science, School of Biology, Faculty of Science University of Tehran Tehran Iran
| | - Ahmadali Baghaei
- Faculty of Medicine, Mashhad Branch Islamic Azad University Mashhad Iran
| | - Hossein Mahboudi
- Department of Biotechnology, School of Pharmacy Alborz University of Medical Sciences karaj Iran
| | - Javad Hashemi
- Department of Pathobiology and Laboratory Sciences, Faculty of Medicine North Khorasan University of Medical Sciences Bojnurd Iran
| | - Mohammad Rahmati
- Department of Medical Biotechnology, Faculty of Paramedicine Guilan University of Medical Sciences Rasht Iran
| | - Maryam Islami
- Department of Biotechnology, School of Medicine Alborz University of Medical Science Karaj Iran
| | - Vahid Mansouri
- Proteomics Research Center, Faculty of Paramedical Sciences Shahid Beheshti University of Medical Sciences Tehran Iran
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22
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Dong Q, Wu D, Li M, Dong W. Polysaccharides, as biological macromolecule-based scaffolding biomaterials in cornea tissue engineering: A review. Tissue Cell 2022; 76:101782. [PMID: 35339801 DOI: 10.1016/j.tice.2022.101782] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 12/13/2022]
Abstract
Corneal-related diseases and injuries are the leading causes of vision loss, estimated to affect over 10 million people worldwide. Currently, cadaveric corneal grafts are considered the gold standard of treatment to restore cornea-related vision. However, this treatment modality faces different challenges such as donor shortage and graft failure. Therefore, the need for alternative solutions continues to grow. Tissue engineering has dramatically progressed to produce artificial cornea implants in order to repair, regenerate, or replace the damaged cornea. In this regard, a variety of polysaccharides such as cellulose, chitosan, alginate, agarose, and hyaluronic acid have been widely explored as scaffolding biomaterials for the production of tissue-engineered cornea. These polymers are known for their excellent biocompatibility, versatile properties, and processability. Recent progress and future perspectives of polysaccharide-based biomaterials in cornea tissue engineering is reviewed here.
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Affiliation(s)
- Qiwei Dong
- School of medicine, University of Electronic Science and Technology of China, Chengdu 610072, Sichuan, China
| | - Dingkun Wu
- Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian, Liaoning, China, 116024
| | - Moqiu Li
- Center for Cancer Prevention Research, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Wei Dong
- School of Mathematics Sciences, Shanxi University, Taiyuan 030006, China.
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23
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Wang Z, Zhao Y, Shen M, Tomás H, Zhou B, Shi X. Antitumor Efficacy of Doxorubicin-Loaded Electrospun Attapulgite–Poly(lactic-co-glycolic acid) Composite Nanofibers. J Funct Biomater 2022; 13:jfb13020055. [PMID: 35645263 PMCID: PMC9149849 DOI: 10.3390/jfb13020055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/21/2022] [Accepted: 05/09/2022] [Indexed: 02/06/2023] Open
Abstract
Currently, cancer chemotherapeutic drugs still have the defects of high toxicity and low bioavailability, so it is critical to design novel drug release systems for cancer chemotherapy. Here, we report a method to fabricate electrospun drug-loaded organic/inorganic hybrid nanofibrous system for antitumor therapy applications. In this work, rod-like attapulgite (ATT) was utilized to load a model anticancer drug doxorubicin (DOX), and mixed with poly(lactic-co-glycolic acid) (PLGA) to form electrospun hybrid nanofibers. The ATT/DOX/PLGA composite nanofibers were characterized through various techniques. It is feasible to load DOX onto ATT surfaces, and the ATT/DOX/PLGA nanofibers show a smooth and uniform morphology with improved mechanical durability. Under neutral and acidic pH conditions, the loaded DOX was released from ATT/DOX/PLGA nanofibers in a sustained manner. In addition, the released DOX from the nanofibers could significantly inhibit the growth of tumor cells. Owing to the significantly reduced burst release profile and increased mechanical durability of the ATT/DOX/PLGA nanofibers, the designed organic–inorganic hybrid nanofibers may hold great promise as a nanoplatform to encapsulate different drugs for enhanced local tumor therapy applications.
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Affiliation(s)
- Zhe Wang
- Department of Biomedical Engineering, College of Engineering, Shantou University, Shantou 515063, China;
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China;
| | - Yili Zhao
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Mingwu Shen
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China;
| | - Helena Tomás
- CQM—Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal;
| | - Benqing Zhou
- Department of Biomedical Engineering, College of Engineering, Shantou University, Shantou 515063, China;
- Correspondence: (B.Z.); (X.S.)
| | - Xiangyang Shi
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China;
- CQM—Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal;
- Correspondence: (B.Z.); (X.S.)
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24
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Regeneration of Articular Cartilage Using Membranes of Polyester Scaffolds in a Rabbit Model. Pharmaceutics 2022; 14:pharmaceutics14051016. [PMID: 35631602 PMCID: PMC9143412 DOI: 10.3390/pharmaceutics14051016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Abstract
One promising method for cartilage regeneration involves combining known methods, such as the microfracture technique with biomaterials, e.g., scaffolds (membranes). The most important feature of such implants is their appropriate rate of biodegradation, without the production of toxic metabolites. This study presents work on two different membranes made of polyester (L-lactide-co-ε-caprolactone-PLCA) named “PVP and “Z”. The difference between them was the use of different pore precursors—polyvinylpyrrolidone in the “PVP” scaffold and gelatin in the “Z” scaffold. These were implemented in the articular cartilage defects of rabbit knee joints (defects were created for the purpose of the study). After 8, 16, and 24 weeks of observation, and the subsequent termination of the animals, histopathology and gel permeation chromatography (GPC) examinations were performed. Statistical analysis proved that the membranes support the regeneration process. GPC testing proved that the biodegradation process is progressing exponentially, causing the membranes to degrade at the appropriate time. The surgical technique we used meets all the requirements without causing the membrane to migrate after implantation. The “PVP” membrane is better due to the fact that after 24 weeks of observation there was a statistical trend for higher histological ratings. It is also better because it is easier to implant due to its lower fragility then membrane “Z”. We conclude that the selected membranes seem to support the regeneration of articular cartilage in the rabbit model.
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25
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Handa M, Maharana SK, Pal K, Shukla R. Biocompatible Nanomaterials for Burns. Curr Pharm Biotechnol 2022; 23:1514-1526. [DOI: 10.2174/1389201023666220413091055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/30/2021] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Skin being the largest organ protects our body against harmful chemicals, pathogens and physical agents. It constitutes three primarily layers - epidermis, dermis and the subcutaneous layers. Injuries occurring due to burn remains localized to skin or other organic tissues caused by flame, extreme heat, and close contact with chemicals or heated objects. Conventional treatments are available for treatment of burns however they are expensive and might completely replaces autologous tissue transfer completely. Nanotechnology based approaches include organic nanoparticles, dendrimers, hydrogels, etc. Biocompatibility usually refer ability of biomaterial of performing their respective functions centred towards medical therapy, without causing any systemic or local effects. Polymeric materials like natural (chitosan, hyaluronic acid) and synthetic (polylactic acid, polycaprolactone) are employed as biomaterials. Various preclinical and clinical studies were performed in animal models. In this review, authors have discussed elaborately on the biocompatible polymers which are used in treatment of burn wounds. Afternath, a brief discussion on the polymers, pre-clinical and clinical studies, regulatory concern related to nanomaterials also had been covered.
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Affiliation(s)
- Mayank Handa
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
| | - Sandeep Kr Maharana
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
| | - Kamlesh Pal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
| | - Rahul Shukla
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P., India-226002
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26
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Saghebasl S, Akbarzadeh A, Gorabi AM, Nikzamir N, SeyedSadjadi M, Mostafavi E. Biodegradable functional macromolecules as promising scaffolds for cardiac tissue engineering. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Solmaz Saghebasl
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences Tabriz University of Medical Sciences Tabriz Iran
| | - Abolfazl Akbarzadeh
- Stem Cell Research Center Tabriz University of Medical Sciences Tabriz Iran
- Universal Scientific Education and Research Network (USERN) Tabriz Iran
| | - Armita Mahdavi Gorabi
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute Tehran University of Medical Sciences Tehran Iran
| | - Nasrin Nikzamir
- Department of Chemistry, Science and Research Branch Islamic Azad University Tehran Iran
| | | | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute Stanford University School of Medicine Stanford California USA
- Department of Medicine Stanford University School of Medicine Stanford California USA
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27
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Zhang M, Song W, Tang Y, Xu X, Huang Y, Yu D. Polymer-Based Nanofiber-Nanoparticle Hybrids and Their Medical Applications. Polymers (Basel) 2022; 14:351. [PMID: 35054758 PMCID: PMC8780324 DOI: 10.3390/polym14020351] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 12/13/2022] Open
Abstract
The search for higher-quality nanomaterials for medicinal applications continues. There are similarities between electrospun fibers and natural tissues. This property has enabled electrospun fibers to make significant progress in medical applications. However, electrospun fibers are limited to tissue scaffolding applications. When nanoparticles and nanofibers are combined, the composite material can perform more functions, such as photothermal, magnetic response, biosensing, antibacterial, drug delivery and biosensing. To prepare nanofiber and nanoparticle hybrids (NNHs), there are two primary ways. The electrospinning technology was used to produce NNHs in a single step. An alternate way is to use a self-assembly technique to create nanoparticles in fibers. This paper describes the creation of NNHs from routinely used biocompatible polymer composites. Single-step procedures and self-assembly methodologies are used to discuss the preparation of NNHs. It combines recent research discoveries to focus on the application of NNHs in drug release, antibacterial, and tissue engineering in the last two years.
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Affiliation(s)
- Mingxin Zhang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (M.Z.); (Y.T.); (X.X.); (Y.H.)
| | - Wenliang Song
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (M.Z.); (Y.T.); (X.X.); (Y.H.)
| | - Yunxin Tang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (M.Z.); (Y.T.); (X.X.); (Y.H.)
| | - Xizi Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (M.Z.); (Y.T.); (X.X.); (Y.H.)
| | - Yingning Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (M.Z.); (Y.T.); (X.X.); (Y.H.)
| | - Dengguang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (M.Z.); (Y.T.); (X.X.); (Y.H.)
- Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials, Shanghai 200093, China
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28
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Cao Y, Jiang J, Jiang Y, Li Z, Hou J, Li Q. Biodegradable highly porous interconnected poly(ε‐caprolactone)/poly(L‐lactide‐co‐ε‐caprolactone) scaffolds by supercritical foaming for small‐diameter vascular tissue engineering. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yongjun Cao
- School of Materials Science & Engineering Zhengzhou University Zhengzhou China
- National Center for International Joint Research of Micro‐Nano Molding Technology Zhengzhou University Zhengzhou China
| | - Jing Jiang
- National Center for International Joint Research of Micro‐Nano Molding Technology Zhengzhou University Zhengzhou China
- School of Mechanical & Power Engineering Zhengzhou University Zhengzhou China
| | - Yufan Jiang
- School of Materials Science & Engineering Zhengzhou University Zhengzhou China
- National Center for International Joint Research of Micro‐Nano Molding Technology Zhengzhou University Zhengzhou China
| | - Zihui Li
- National Center for International Joint Research of Micro‐Nano Molding Technology Zhengzhou University Zhengzhou China
| | - Jianhua Hou
- National Center for International Joint Research of Micro‐Nano Molding Technology Zhengzhou University Zhengzhou China
| | - Qian Li
- School of Materials Science & Engineering Zhengzhou University Zhengzhou China
- National Center for International Joint Research of Micro‐Nano Molding Technology Zhengzhou University Zhengzhou China
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29
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Bow AJ, Masi TJ, Dhar MS. Etched 3D-Printed Polycaprolactone Constructs Functionalized with Reduced Graphene Oxide for Enhanced Attachment of Dental Pulp-Derived Stem Cells. Pharmaceutics 2021; 13:2146. [PMID: 34959426 PMCID: PMC8704510 DOI: 10.3390/pharmaceutics13122146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/03/2021] [Accepted: 12/10/2021] [Indexed: 01/08/2023] Open
Abstract
A core challenge in the field of tissue engineering is the ability to establish pipeline workflows for the design and characterization of scaffold technologies with clinically translatable attributes. The parallel development of biomaterials and stem cell populations represents a self-sufficient and streamlined approach for establishing such a pipeline. In the current study, rat dental pulp stem cell (rDPSC) populations were established to assess functionalized polycaprolactone (PCL) constructs. Initial optimization and characterization of rDPSC extraction and culture conditions confirmed that cell populations were readily expandable and demonstrated surface markers associated with multi-potency. Subset populations were transduced to express DsRed fluorescent protein as a mechanism of tracking both cells and cell-derived extracellular matrix content on complex scaffold architecture. Thermoplastic constructs included reduced graphene oxide (rGO) as an additive to promote cellular attachment and were further modified by surface etching a weak acetic acid solution to roughen surface topographical features, which was observed to dramatically improve cell surface coverage in vitro. Based on these data, the modified rGO-functionalized PCL constructs represent a versatile platform for bone tissue engineering, capable of being applied as a standalone matrix or in conjunction with bio-active payloads such as DPSCs or other bio-inks.
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Affiliation(s)
- Austin J. Bow
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37931, USA;
| | - Thomas J. Masi
- School of Medicine, University of Tennessee Graduate, Knoxville, TN 37920, USA;
| | - Madhu S. Dhar
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37931, USA;
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30
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Bahraminasab M, Janmohammadi M, Arab S, Talebi A, Nooshabadi VT, Koohsarian P, Nourbakhsh MS. Bone Scaffolds: An Incorporation of Biomaterials, Cells, and Biofactors. ACS Biomater Sci Eng 2021; 7:5397-5431. [PMID: 34797061 DOI: 10.1021/acsbiomaterials.1c00920] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Large injuries to bones are still one of the most challenging musculoskeletal problems. Tissue engineering can combine stem cells, scaffold biomaterials, and biofactors to aid in resolving this complication. Therefore, this review aims to provide information on the recent advances made to utilize the potential of biomaterials for making bone scaffolds and the assisted stem cell therapy and use of biofactors for bone tissue engineering. The requirements and different types of biomaterials used for making scaffolds are reviewed. Furthermore, the importance of stem cells and biofactors (growth factors and extracellular vesicles) in bone regeneration and their use in bone scaffolds and the key findings are discussed. Lastly, some of the main obstacles in bone tissue engineering and future trends are highlighted.
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Affiliation(s)
- Marjan Bahraminasab
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan 3513138111, Iran.,Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan 3513138111, Iran
| | - Mahsa Janmohammadi
- Department of Biomedical Engineering, Faculty of New Sciences and Technologies, Semnan University, Semnan 3513119111, Iran
| | - Samaneh Arab
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan 3513138111, Iran.,Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan 3513138111, Iran
| | - Athar Talebi
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan 3513138111, Iran
| | - Vajihe Taghdiri Nooshabadi
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine, Semnan University of Medical Sciences, Semnan 3513138111, Iran.,Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan 3513138111, Iran
| | - Parisa Koohsarian
- Department of Biochemistry and Hematology, School of Medicine, Semnan University of Medical Sciences, Semnan 3513138111, Iran
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31
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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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32
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Zhu Y, Liu W, Ngai T. Polymer coatings on magnesium‐based implants for orthopedic applications. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210578] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yuwei Zhu
- Department of Chemistry The Chinese University of Hong Kong Shatin N. T. Hong Kong
| | - Wei Liu
- Department of Chemistry The Chinese University of Hong Kong Shatin N. T. Hong Kong
| | - To Ngai
- Department of Chemistry The Chinese University of Hong Kong Shatin N. T. Hong Kong
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33
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Venugopal D, Vishwakarma S, Kaur I, Samavedi S. Electrospun meshes intrinsically promote M2 polarization of microglia under hypoxia and offer protection from hypoxia-driven cell death. Biomed Mater 2021; 16. [PMID: 34116516 DOI: 10.1088/1748-605x/ac0a91] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/11/2021] [Indexed: 02/08/2023]
Abstract
In this study, we offer new insights into the contrasting effects of electrospun fiber orientation on microglial polarization under normoxia and hypoxia, and establish for the first time, the intrinsically protective roles of electrospun meshes against hypoxia-induced microglial responses. First, resting microglia were cultured under normoxia on poly(caprolactone) fibers possessing two distinctly different fiber orientations. Matrix-guided differences in cell shape/orientation and differentially expressed Rho GTPases (RhoA, Rac1, Cdc42) were well-correlated with the randomly oriented fibers inducing a pro-inflammatory phenotype and the aligned fibers sustaining a resting phenotype. Upon subsequent hypoxia induction, both sets of meshes offered protection from hypoxia-induced damage by promoting a radical phenotypic switch and beneficially altering the M2/M1 ratio to different extents. Compared to 2D hypoxic controls, meshes significantly suppressed the expression of pro-inflammatory markers (IL-6, TNF-α) and induced drastically higher expression of anti-inflammatory (IL-4, IL-10, VEGF-189) and neuroprotective (Nrf-2) markers. Consistent with this M2 polarization, the expression of Rho GTPases was significantly lower in the mesh groups under hypoxia compared to normoxic culture. Moreover, meshes-particularly with aligned fibers-promoted higher cell viability, suppressed caspase 3/8 and LC-3 expression and promoted LAMP-1 and LAMP-2 expression, which suggested the mitigation of apoptotic/autophagic cell death via a lysosomal membrane-stabilization mechanism. Notably, all protective effects under hypoxia were observed in the absence of additional soluble cues. Our results offer promise for leveraging the intrinsic therapeutic potential of electrospun meshes in degenerative diseases where microglial dysfunction, hypoxia and inflammation are implicated.
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Affiliation(s)
- Dhivya Venugopal
- Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, India
| | - Sushma Vishwakarma
- Prof Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India.,Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Inderjeet Kaur
- Prof Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
| | - Satyavrata Samavedi
- Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, India
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34
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Wang C, Xu Y, Xia J, Zhou Z, Fang Y, Zhang L, Sun W. Multi-scale hierarchical scaffolds with aligned micro-fibers for promoting cell alignment. Biomed Mater 2021; 16. [PMID: 34116518 DOI: 10.1088/1748-605x/ac0a90] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 06/11/2021] [Indexed: 01/29/2023]
Abstract
Cell alignment plays an essential role in cytoskeleton reorganization, extracellular matrix remodeling, and biomechanical properties regulation of tissues such as vascular tissues, cardiac muscles, and tendons. Based on the natural-oriented features of cells in native tissues, various biomimetic scaffolds have been reported with the introduction of well-arranged ultrafine fibers to induce cell alignment. However, it is still a challenge to fabricate scaffolds with suitable mechanical properties, biomimetic microenvironment, and ability to promote cell alignment. In this paper, we propose an integrated 3D printing system to fabricate multi-scale hierarchical scaffolds combined with meso-, micro-, and nano-fibrous filaments, in which the meso-, micro-, and nano-fibers fabricated via fused deposition modeling, melt electrospining writing, and solution electrospining can provide structural support, promote cell alignment, and create a biomimetic microenvironment to facilitate cell function, respectively. The plasma surface modification was performed improve the surface wettability of the scaffolds by measuring the contact angle. The obtainedin vitrobiological results validate the ability of multi-scale hierarchical scaffolds to enhance cell adhesion and proliferation, and promote cell alignment with the guidance of the aligned microfibers produced via melt electrospining writing in hierarchical scaffolds.
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Affiliation(s)
- Chengjin Wang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Yuanyuan Xu
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Jingjing Xia
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Zhenzhen Zhou
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Yongcong Fang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Lei Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China
| | - Wei Sun
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.,Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing 100084, People's Republic of China.,'Biomanufacturing and Engineering Living Systems' Innovation International Talents Base (111 Base), Beijing 100084, People's Republic of China.,Department of Mechanical Engineering, Drexel University, Philadelphia, PA 19104, United States of America
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Fabrication of Hybrid Nanofibers from Biopolymers and Poly (Vinyl Alcohol)/Poly (ε-Caprolactone) for Wound Dressing Applications. Polymers (Basel) 2021; 13:polym13132104. [PMID: 34206747 PMCID: PMC8271691 DOI: 10.3390/polym13132104] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 11/24/2022] Open
Abstract
The management of chronic wounds is challenging. The factors that impede wound healing include malnutrition, diseases (such as diabetes, cancer), and bacterial infection. Most of the presently utilized wound dressing materials suffer from severe limitations, including poor antibacterial and mechanical properties. Wound dressings formulated from the combination of biopolymers and synthetic polymers (i.e., poly (vinyl alcohol) or poly (ε-caprolactone) display interesting properties, including good biocompatibility, improved biodegradation, good mechanical properties and antimicrobial effects, promote tissue regeneration, etc. Formulation of these wound dressings via electrospinning technique is cost-effective, useful for uniform and continuous nanofibers with controllable pore structure, high porosity, excellent swelling capacity, good gaseous exchange, excellent cellular adhesion, and show a good capability to provide moisture and warmth environment for the accelerated wound healing process. Based on the above-mentioned outstanding properties of nanofibers and the unique properties of hybrid wound dressings prepared from poly (vinyl alcohol) and poly (ε-caprolactone), this review reports the in vitro and in vivo outcomes of the reported hybrid nanofibers.
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Willems C, Trutschel ML, Mazaikina V, Strätz J, Mäder K, Fischer S, Groth T. Hydrogels Based on Oxidized Cellulose Sulfates and Carboxymethyl Chitosan: Studies on Intrinsic Gel Properties, Stability, and Biocompatibility. Macromol Biosci 2021; 21:e2100098. [PMID: 34124844 DOI: 10.1002/mabi.202100098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/06/2021] [Indexed: 11/07/2022]
Abstract
Cellulose and chitosan are excellent components for the fabrication of bioactive scaffolds, as they are biocompatible and abundantly available. Their derivatives Ocarboxymethyl chitosan (CMChi) and oxidized cellulose sulfate (oxCS) can form in situ gelling, bioactive hydrogels, due to the formation of imine bonds for crosslinking. Here the influence of the degrees of sulfation (DS), oxidation (DO), and the molecular weight of oxCS on intrinsic and rheological properties of such hydrogels and their ability to support the survival and growth of human-adipose-derived stem cells (hADSC) is investigated. It is found that the pH of the hydrogels is generally slightly acidic, while their network density and E-modulus are found to be dependent on the DS and DO, which makes the properties of hydrogels tunable. Extensive studies show that hydrogels can be stable for up to 14 days and that their stability is largely dependent on the DO, molecular weight, and the components mixing ratio. Cytotoxicity studies of the hydrogel with hADSCs show biocompatible gels in dependence on the molecular weight and degree of oxidation with viable cells up to 14 days. These findings can help to develop specifically tailored hydrogels for tissue engineering applications to replace different types of connective tissue.
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Affiliation(s)
- Christian Willems
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
| | - Marie-Luise Trutschel
- Department of Pharmaceutical Technology, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Kurt-Mothes Strasse 3, 06120, Halle (Saale), Germany
| | - Vera Mazaikina
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany
| | - Juliane Strätz
- Institute of Plant and Wood Chemistry, Technische Universität Dresden, Pienner Strasse 19, 01737, Tharandt, Germany
| | - Karsten Mäder
- Department of Pharmaceutical Technology, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Kurt-Mothes Strasse 3, 06120, Halle (Saale), Germany
| | - Steffen Fischer
- Institute of Plant and Wood Chemistry, Technische Universität Dresden, Pienner Strasse 19, 01737, Tharandt, Germany
| | - Thomas Groth
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120, Halle (Saale), Germany.,Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, 06099, Halle (Saale), Germany
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Pedrosa MCG, dos Anjos SA, Mavropoulos E, Bernardo PL, Granjeiro JM, Rossi AM, Dias ML. Structure and biological compatibility of polycaprolactone/zinc-hydroxyapatite electrospun nanofibers for tissue regeneration. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211022448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although guided tissue regeneration (GTR) is a useful tool for regenerating lost tissue as bone and periodontal tissue, a biocompatible membrane capable of regenerating large defects has yet to be discovered. This study aimed to characterize the physicochemical properties and biological compatibility of polycaprolactone (PCL) membranes associated with or without nanostructured hydroxyapatite (HA) (PCL/HA) and Zn-doped HA (PCL/ZnHA), produced by electrospinning. PCL, PCL/HA, and PCL/ZnHA were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC). Nanoparticles of HA or ZnHA were homogeneously distributed and dispersed inside the PCL fibers, which decreased the fiber thickness. At 1 wt% of HA or ZnHA, these nanoparticles acted as nucleating agents. Moreover, HA and ZnHA increased the onset of the degradation temperature and thermal stability of the electrospun membrane. All tested membranes showed no cytotoxicity and allowed murine pre-osteoblast adhesion and spreading; however, higher concentrations of PCL/ZnHA showed less cells and an irregular cell morphology compared to PCL and PCL/HA. This article presents a cytocompatible, electrospun, nanocomposite membrane with a novel morphology and physicochemical properties that make it eligible as a scaffold for GTR.
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Affiliation(s)
- Maria Clara Guimaraes Pedrosa
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Elena Mavropoulos
- Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
| | | | - José Mauro Granjeiro
- Directory of Life Sciences Applied Metrology, Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO), Duque de Caxias, RJ, Brazil
| | | | - Marcos Lopes Dias
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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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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Liu Z, Liu J, Liu N, Zhu X, Tang R. Tailoring electrospun mesh for a compliant remodeling in the repair of full-thickness abdominal wall defect - The role of decellularized human amniotic membrane and silk fibroin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112235. [PMID: 34225876 DOI: 10.1016/j.msec.2021.112235] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 05/06/2021] [Accepted: 05/30/2021] [Indexed: 10/21/2022]
Abstract
Tailored electrospun meshes have been increasingly explored for abdominal wall defect repair in preclinical and clinical studies. However, the fabrication of a bioengineered mesh adapts to the intraperitoneal repair for a compliant remodeling remains a great challenge. In this study, we fabricated a functional mesh by combining polycaprolactone (PCL) with silk fibroin (SF) and decellularized human amniotic membrane (HAM) proportionally via electrospinning. SF was integrated with PCL (40:60 w/w) to regulate the structural flexibility. Micronized HAM was incorporated to PCL/SF (10:90 w/w) to provide a biocompatible milieu with functions being conferred to facilitate intraperitoneal repair. After the blend electrospinning, the PCL/SF/HAM mesh was characterized in vitro and implanted into the rat model with a full-thickness defect for a comprehensive evaluation in comparison to the PCL and PCL/SF meshes. The results demonstrated that electrospinning fabricated PCL stabilized the mechanical elongation toward approximating the native counterparts after integrating with SF. After integrating with HAM, which is coupled with diverse biomolecular compositions, the developed PCL/SF/HAM mesh provided a better microenvironment for cell proliferation and vasculogenic network over other meshes without HAM addition and possessed the functions capable of inhibiting transforming growth factor β1 (TGF-β1) expression and collagen secretion under inflammatory conditions. Moreover, the functional mesh developed less-intensive adhesion along with histologically weaker inflammatory response and foreign body reaction than the PCL and PCL/SF meshes after 90 days in vivo. During the remodeling process, the bioactive structure induced more pronounced neovascularization and remarkable incorporation of collagen and elastin fibers and contractile filaments for a mechanically sufficient and physiologically stiffness-matched healing. This tailor-made mesh expands the intraperitoneal applicability of conventional electrospun meshes for a compliant remodeling in the repair of abdominal wall defects.
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Affiliation(s)
- Zhengni Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai 200120, PR China
| | - Jiajie Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai 200120, PR China
| | - Nan Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai 200120, PR China
| | - Xiaoqiang Zhu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai 200120, PR China
| | - Rui Tang
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, 150 Ji Mo Road, Shanghai 200120, PR China.
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Ge Y, Tang J, Ullah A, Ullah S, Sarwar MN, Kim IS. Sabina chinensis leaf extracted and in situ incorporated polycaprolactone/polyvinylpyrrolidone electrospun microfibers for antibacterial application. RSC Adv 2021; 11:18231-18240. [PMID: 35480946 PMCID: PMC9033436 DOI: 10.1039/d1ra01061a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/28/2021] [Indexed: 01/19/2023] Open
Abstract
Sabina chinensis is a valuable reforestation conifer and traditional medicinal plant. In order to retain the physiological and pharmacological activities of the plant and obtain a fibrous material with better antibacterial properties, a mixed solvent of dichloromethane and N,N'-dimethylformamide was used to obtain the leaf extracts, and Sabina chinensis leaf extract (ScLE)-loaded PCL/PVP microfibers were successfully fabricated by electrospinning. The whole preparation process was carried out at room temperature to avoid deterioration of active ingredients. From the antibacterial activity test, it was observed that ScLE-loaded polycaprolactone/polyvinylpyrrolidone (PCL/PVP) microfibers had potential antibacterial activity against both Gram-positive and Gram-negative bacteria stains. The morphological properties of the prepared microfibers were observed by SEM. As the proportion of ScLE increased, the fiber diameter gradually increased and the surface was smooth. The excess ScLE addition caused the formation of beads during electrospinning. Considering different characterization results, 33% (v/v) addition of ScLE to the spinning solution was the optimum ratio. The winding structure obtained by the interaction of components in ScLE with PCL and PVP was confirmed by FTIR, XRD and WCA tests, which indicated that ScLE-loaded microfibers possessed excellent thermal stability, tear resistance and degradation resistance. It is expected that the prepared composite microfibers have potential applications as robust antibacterial meshes and films in the fields of biomedicine and air purification.
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Affiliation(s)
- Yan Ge
- School of Textile and Clothing, Nantong University Nantong 226019 PR China
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong University Nantong 226019 PR China
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering IFES-Interdisciplinary Cluster for Cutting Edge Research ICCER, Shinshu University Tokida 3-15-1 Ueda Nagano 386-8567 Japan
| | - Jiapeng Tang
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine, Nantong University Nantong 226019 PR China
- Co-innovation Center of Neuroregeneration, Nantong University Nantong 226001 PR China
| | - Azeem Ullah
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering IFES-Interdisciplinary Cluster for Cutting Edge Research ICCER, Shinshu University Tokida 3-15-1 Ueda Nagano 386-8567 Japan
| | - Sana Ullah
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering IFES-Interdisciplinary Cluster for Cutting Edge Research ICCER, Shinshu University Tokida 3-15-1 Ueda Nagano 386-8567 Japan
| | - Muhammad Nauman Sarwar
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering IFES-Interdisciplinary Cluster for Cutting Edge Research ICCER, Shinshu University Tokida 3-15-1 Ueda Nagano 386-8567 Japan
| | - Ick-Soo Kim
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering IFES-Interdisciplinary Cluster for Cutting Edge Research ICCER, Shinshu University Tokida 3-15-1 Ueda Nagano 386-8567 Japan
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Sustained Release Systems for Delivery of Therapeutic Peptide/Protein. Biomacromolecules 2021; 22:2299-2324. [PMID: 33957752 DOI: 10.1021/acs.biomac.1c00160] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Peptide/protein therapeutics have been significantly applied in the clinical treatment of various diseases such as cancer, diabetes, etc. owing to their high biocompatibility, specificity, and therapeutic efficacy. However, due to their immunogenicity, instability stemming from its complex tertiary and quaternary structure, vulnerability to enzyme degradation, and rapid renal clearance, the clinical application of protein/peptide therapeutics is significantly confined. Though nanotechnology has been demonstrated to prevent enzyme degradation of the protein therapeutics and thus enhance the half-life, issues such as initial burst release and uncontrollable release kinetics are still unsolved. Moreover, the traditional administration method results in poor patient compliance, limiting the clinical application of protein/peptide therapeutics. Exploiting the sustained-release formulations for more controllable delivery of protein/peptide therapeutics to decrease the frequency of injection and enhance patient compliance is thus greatly meaningful. In this review, we comprehensively summarize the substantial advancements of protein/peptide sustained-release systems in the past decades. In addition, the advantages and disadvantages of all these sustained-release systems in clinical application together with their future challenges are also discussed in this review.
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42
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High Antibacterial Effect of Impregnated Nanofiber Mats with a Green Nanogel Against Major Human Pathogens. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00860-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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43
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Hivechi A, Milan PB, Modabberi K, Amoupour M, Ebrahimzadeh K, Gholipour AR, Sedighi F, Amini N, Bahrami SH, Rezapour A, Hamidi M, Delattre C. Synthesis and Characterization of Exopolysaccharide Encapsulated PCL/Gelatin Skin Substitute for Full-Thickness Wound Regeneration. Polymers (Basel) 2021; 13:polym13060854. [PMID: 33802198 PMCID: PMC8000589 DOI: 10.3390/polym13060854] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/15/2022] Open
Abstract
Loss of skin integrity can lead to serious problems and even death. In this study, for the first time, the effect of exopolysaccharide (EPS) produced by cold-adapted yeast R. mucilaginosa sp. GUMS16 on a full-thickness wound in rats was evaluated. The GUMS16 strain's EPS was precipitated by adding cold ethanol and then lyophilized. Afterward, the EPS with polycaprolactone (PCL) and gelatin was fabricated into nanofibers with two single-needle and double-needle procedures. The rats' full-thickness wounds were treated with nanofibers and Hematoxylin and eosin (H&E) and Masson's Trichrome staining was done for studying the wound healing in rats. Obtained results from SEM, DLS, FTIR, and TGA showed that EPS has a carbohydrate chemical structure with an average diameter of 40 nm. Cell viability assessments showed that the 2% EPS loaded sample exhibits the highest cell activity. Moreover, in vivo implantation of nanofiber webs on the full-thickness wound on rat models displayed a faster healing rate when EPS was loaded into a nanofiber. These results suggest that the produced EPS can be used for skin tissue engineering applications.
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Affiliation(s)
- Ahmad Hivechi
- Department of Textile Engineering, School of Materials and Advanced Processing, Amirkabir University of Technology, Tehran 1591639675, Iran; (A.H.); (S.H.B.)
| | - Peiman Brouki Milan
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran 1591639675, Iran; (P.B.M.); (N.A.)
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 1591639675, Iran
| | - Khashayar Modabberi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
| | - Moein Amoupour
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran 1591639675, Iran;
| | - Kaveh Ebrahimzadeh
- Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran 1591639675, Iran;
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran 1591639675, Iran
| | - Amir Reza Gholipour
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
| | - Faezeh Sedighi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
| | - Naser Amini
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran 1591639675, Iran; (P.B.M.); (N.A.)
| | - S. Hajir Bahrami
- Department of Textile Engineering, School of Materials and Advanced Processing, Amirkabir University of Technology, Tehran 1591639675, Iran; (A.H.); (S.H.B.)
| | - Alireza Rezapour
- Department of Tissue Engineering, School of Medicine, Qom University of Medical Sciences, Qom 3716993456, Iran;
| | - Masoud Hamidi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht 4477166595, Iran; (K.M.); (A.R.G.); (F.S.)
- Correspondence: (M.H.); (C.D.); Tel.: +32-26-50-3681 (M.H.); +33-(0)4-73-40-7423 (C.D.)
| | - Cédric Delattre
- Université Clermont Auvergne, CNRS, Clermont Auvergne INP, Institut Pascal, F-63000 Clermont-Ferrand, France
- Institut Universitaire de France (IUF), 1 Rue Descartes, 75005 Paris, France
- Correspondence: (M.H.); (C.D.); Tel.: +32-26-50-3681 (M.H.); +33-(0)4-73-40-7423 (C.D.)
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Pita-López ML, Fletes-Vargas G, Espinosa-Andrews H, Rodríguez-Rodríguez R. Physically cross-linked chitosan-based hydrogels for tissue engineering applications: A state-of-the-art review. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110176] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Wasyłeczko M, Sikorska W, Chwojnowski A. Review of Synthetic and Hybrid Scaffolds in Cartilage Tissue Engineering. MEMBRANES 2020; 10:E348. [PMID: 33212901 PMCID: PMC7698415 DOI: 10.3390/membranes10110348] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023]
Abstract
Cartilage tissue is under extensive investigation in tissue engineering and regenerative medicine studies because of its limited regenerative potential. Currently, many scaffolds are undergoing scientific and clinical research. A key for appropriate scaffolding is the assurance of a temporary cellular environment that allows the cells to function as in native tissue. These scaffolds should meet the relevant requirements, including appropriate architecture and physicochemical and biological properties. This is necessary for proper cell growth, which is associated with the adequate regeneration of cartilage. This paper presents a review of the development of scaffolds from synthetic polymers and hybrid materials employed for the engineering of cartilage tissue and regenerative medicine. Initially, general information on articular cartilage and an overview of the clinical strategies for the treatment of cartilage defects are presented. Then, the requirements for scaffolds in regenerative medicine, materials intended for membranes, and methods for obtaining them are briefly described. We also describe the hybrid materials that combine the advantages of both synthetic and natural polymers, which provide better properties for the scaffold. The last part of the article is focused on scaffolds in cartilage tissue engineering that have been confirmed by undergoing preclinical and clinical tests.
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Affiliation(s)
- Monika Wasyłeczko
- Nałęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 str., 02-109 Warsaw, Poland; (W.S.); (A.C.)
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Mondésert H, Bossard F, Favier D. Anisotropic electrospun honeycomb polycaprolactone scaffolds: Elaboration, morphological and mechanical properties. J Mech Behav Biomed Mater 2020; 113:104124. [PMID: 33091720 DOI: 10.1016/j.jmbbm.2020.104124] [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: 05/07/2020] [Revised: 09/01/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022]
Abstract
Tissue engineering technology requires porous scaffolds, based on biomaterials, which have to mimic as closely as possible the morphological and anisotropic mechanical properties of the native tissue to substitute. Anisotropic fibrous scaffolds fabricated by template-assisted electrospinning are investigated in this study. Fibers of electrospun Polycaprolactone (PCL) were successfully arranged spatially into honeycomb structures by using well-shaped 3D micro-architected metal collectors. Fibrous scaffolds present 2 × 4 mm2 wide elementary patterns with low and high fiber density areas. Distinct regions of the honeycomb patterns were analyzed through SEM images revealing different fiber diameters with specific fiber orientation depending on the regions of interest. Tensile test experiments were carried out with an optical observation of the local deformation at the pattern scale, allowing the determination and analysis, at small and large deformation, of the axial and transverse local strains. The honeycomb patterned mats showed significantly different mechanical properties along the two orthogonal directions probing an anisotropic ratio of 4.2. Stress relaxation test was performed on scaffolds at 15% of strain. This measurement pointed out the low contribution of the viscosity of about 20% in the mechanical response of the scaffold. An orthotropic linear elastic model was consequently proposed to characterize the anisotropic behavior of the produced patterned membranes. This new versatile method to produce architected porous materials, adjustable to several polymers and structures, will provide appealing benefits for soft regenerative medicine application and the development of custom-made scaffolds.
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Affiliation(s)
- Hugues Mondésert
- Univ. Grenoble Alpes, CNRS, Grenoble INP(1), LRP, Grenoble, 38000, France; Univ. Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP(1), TIMC-IMAG, Grenoble, 38000, France
| | - Frédéric Bossard
- Univ. Grenoble Alpes, CNRS, Grenoble INP(1), LRP, Grenoble, 38000, France.
| | - Denis Favier
- Univ. Grenoble Alpes, CNRS, CHU Grenoble Alpes, Grenoble INP(1), TIMC-IMAG, Grenoble, 38000, France
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Corneal stromal regeneration by hybrid oriented poly (ε-caprolactone)/lyophilized silk fibroin electrospun scaffold. Int J Biol Macromol 2020; 161:377-388. [DOI: 10.1016/j.ijbiomac.2020.06.045] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/25/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023]
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48
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Nanomechanical characterization of electrospun biodegradable vascular scaffolds. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01183-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Rashtchian M, Hivechi A, Bahrami SH, Milan PB, Simorgh S. Fabricating alginate/poly(caprolactone) nanofibers with enhanced bio-mechanical properties via cellulose nanocrystal incorporation. Carbohydr Polym 2020; 233:115873. [DOI: 10.1016/j.carbpol.2020.115873] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/11/2020] [Accepted: 01/13/2020] [Indexed: 01/31/2023]
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Ghorbani M, Nezhad-Mokhtari P, Ramazani S. Aloe vera-loaded nanofibrous scaffold based on Zein/Polycaprolactone/Collagen for wound healing. Int J Biol Macromol 2020; 153:921-930. [PMID: 32151718 DOI: 10.1016/j.ijbiomac.2020.03.036] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 12/22/2022]
Abstract
Recently, the use of nanofibers (NFs) for tissue engineering has been more developed. For this purpose, we fabricated the NFs (Zein/Polycaprolactone/Collagen) (Zein/PCL/Collagen) incorporated by zinc oxide NPs (ZnO NPs) and Aloe-vera (NFs/ZnO/Alv) using the electrospinning method. Prepared NFs were studied for their morphological, mechanical, thermal stability, and hydrophilic properties. Among the developed NFs, those loaded by ZnO (1 wt%) and Alv (8 wt%) and with Zein/PCL (70:30) displayed the suitable thermal stability and mechanical properties. The water contact angle of NFs improved by decreasing the Zein/PCL blending ratio. Cell culture results showed that the NFs had good cytocompatibility. The cell adhesion potential of this mats were certified with studying by fibroblast cells for various time intervals (24 h and 72 h). The NFs/ZnO/Alv sample revealed inhibition activity against S. aureus (19.23 ± 1.35 mm) and E. coli (15.38 ± 1.12 mm) bacteria. Thus, these results offered that the prepared NFs can be promised as an active scaffold for wound healing uses.
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Affiliation(s)
- Marjan Ghorbani
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Parinaz Nezhad-Mokhtari
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soghra Ramazani
- Trita Nanomedicine Research Center (TNRC), Trita Third Millennium Pharmaceuticals, Zanjan, Iran.
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