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Bargavi P, Balakumar S, Raghunandhakumar S. Multi-functional bandage - bioactive glass/metal oxides/alginate composites based regenerative membrane facilitating re-epithelialization in diabetic wounds with sustained drug delivery and anti-bactericidal efficacy. Int J Biol Macromol 2024; 262:130054. [PMID: 38342258 DOI: 10.1016/j.ijbiomac.2024.130054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
Chronic wounds, especially diabetic, foot and pressure ulcers are a major health problem affecting >10 % of the world's populace. Calcium phosphate materials, particularly, bioactive glasses (BG), used as a potential material for hard and soft tissue repair. This study combines nanostructured 45S5 BG with titania (TiO2) and alumina (Al2O3) into a composite via simple sol-gel method. Prepared composites with alginate (Alg) formed a bioactive nanocomposite hydrogel membrane via freezing method. X-ray diffraction revealed formation of two phases such as Na1.8Ca1.1Si6O14 and β-Na2Ca4(PO4)2SiO4 in the silica network. Fourier transformed InfraRed spectroscopy confirmed the network formation and cross-linking between composite and alginate. <2 % hemolysis, optimal in vitro degradation and porosity was systematically evaluated up to 7 days, resulting in increasing membrane bioactivity. Significant cytocompatibility, cell migration and proliferation and a 3-4-fold increase in Collagen (Col) and Vascular Endothelial Growth Factor (VEGF) expression were obtained. Sustained delivery of 80 % Dox in 24 h and effective growth reduction of S. aureus and destruction of biofilm development against E. coli and S. aureus within 24 h. Anatomical fin regeneration, rapid re-epithelialization and wound closure were achieved within 14 days in both zebrafish and in streptozotocin (STZ) induced rat in vivo animal models with optimal blood glucose levels. Hence, the fabricated bioactive membrane can act as effective wound dressing material, for diabetic chronic infectious wounds.
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Affiliation(s)
- P Bargavi
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India; Department of Oral Pathology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, India
| | - S Balakumar
- National Centre for Nanoscience and Nanotechnology, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India.
| | - S Raghunandhakumar
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, India
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2
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Lin J, He Y, He Y, Feng Y, Wang X, Yuan L, Wang Y, Chen J, Luo F, Li Z, Li J, Tan H. Janus functional electrospun polyurethane fibrous membranes for periodontal tissue regeneration. J Mater Chem B 2023; 11:9223-9236. [PMID: 37700625 DOI: 10.1039/d3tb01407j] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The guided tissue regeneration (GTR) technique with GTR membranes is an efficient method for repairing periodontal defects. Conventional periodontal membranes act as physical barriers that resist the growth of fibroblasts, epithelial cells, and connective tissue. However, they cannot facilitate the regeneration of periodontal tissue. To address this issue, the exploitation of novel GTR membranes with bioactive functions based on therapeutic requirements is critical. Herein, we exploited a biodegradable bilayer polyurethane fibrous membrane by uniaxial electrostatic spinning to construct two sides with Janus properties by integrating the bioactive molecule dopamine (DA) and antimicrobial Gemini quaternary ammonium salt (QAS). The DA-containing side, located inside the injury, can effectively promote cell adhesion and mesenchymal stem cell growth as well as support mineralization and antioxidant properties, which are beneficial for bone regeneration. The QAS-containing side, located on the outer surface of the injury, endows antibacterial properties and limits fibroblast adhesion and growth on its surface owing to its strong hydrophilicity. An in vivo study demonstrates that the Janus polyurethane fibrous membrane can significantly promote the regeneration of periodontal defects in rats. Owing to its superior mechanical properties and biocompatibility, this polyurethane fibrous membrane has potential applications in the field of periodontal regeneration.
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Affiliation(s)
- Jingjing Lin
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yushui He
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yuanyuan He
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yuan Feng
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Xiao Wang
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Lei Yuan
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Yanchao Wang
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China
| | - Jie Chen
- Department of Pediatric Dentistry, West China School of Stomatology, Sichuan University, Chengdu 610065, China
| | - Feng Luo
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Zhen Li
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Jiehua Li
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
| | - Hong Tan
- College of Polymer Science and Engineering, State Kedy Laboratory of Polymer Materials Engineering, Med-X Center of Materials, Sichuan University, Chengdu 610065, China.
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3
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Kaniuk E, Lechowska-Liszka A, Gajek M, Nikodem A, Ścisłowska-Czarnecka A, Rapacz-Kmita A, Stodolak-Zych E. Correlation between porosity and physicochemical and biological properties of electrospinning PLA/PVA membranes for skin regeneration. BIOMATERIALS ADVANCES 2023; 152:213506. [PMID: 37364396 DOI: 10.1016/j.bioadv.2023.213506] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/28/2023]
Abstract
Electrospinning is an increasingly popular technique for obtaining scaffolds for skin regeneration. However, electrospun scaffolds may also have some disadvantages, as the densely packed fibers in the scaffold structure can limit the penetration of skin cells into the inner part of the material. Such a dense arrangement of fibers can cause the cells to treat the 3D material as 2D one, and thus cause them to accumulate only on the upper surface. In this study, bi-polymer scaffolds made of polylactide (PLA) and polyvinyl alcohol (PVA) electrospun in a sequential or a concurrent system were investigated in a different PLA:PVA ratio (2:1 and 1:1). The properties of six types of model materials were investigated and compared i.e.; the initial materials electrospun by the sequential (PLA/PVA, 2PLA/PVA) and the concurrent system (PLA||PVA) and the same materials with removed PVA fibers (PLA/rPVA, 2PLA/rPVA, PLA||rPVA). The fiber models were intended to increase the porosity and coherent structure parameters of the scaffolds. The applied treatment involving the removal of PVA nanofibers increased the size of interfibrous pores formed between the PLA fibers. Ultimately, the porosity of the PLA/PVA scaffolds increased from 78 % to 99 %, and the time of water absorption decreased from 516 to 2 s. The change in wettability was induced by a synergistic effect of decrease in roughness after washing out and the presence of residual PVA fibers. The chemical analysis carried out confirmed the presence of PVA residues on the PLA fibers (FTIR-ATR study). In vitro studies were performed on human keratinocytes (HaKaT) and macrophages (RAW264.7), for which penetration into the inner part of the PLAIIPVA scaffold was observed. The new proposed approach, which allows the removal of PVA fibers from the bicomponent material, allows to obtain a scaffold with increased porosity, and thus better permeability for cells and nutrients.
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Affiliation(s)
- Ewa Kaniuk
- AGH University of Science and Technology, Al. Mickiewicza 30, Krakow, Poland
| | | | - Marcin Gajek
- AGH University of Science and Technology, Al. Mickiewicza 30, Krakow, Poland
| | - Anna Nikodem
- Wroclaw University of Science and Technology, 27 Wybrzeże Wyspiańskiego st., Wrocław, Poland
| | | | - Alicja Rapacz-Kmita
- AGH University of Science and Technology, Al. Mickiewicza 30, Krakow, Poland
| | - Ewa Stodolak-Zych
- AGH University of Science and Technology, Al. Mickiewicza 30, Krakow, Poland.
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4
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Uhljar LÉ, Ambrus R. Electrospinning of Potential Medical Devices (Wound Dressings, Tissue Engineering Scaffolds, Face Masks) and Their Regulatory Approach. Pharmaceutics 2023; 15:417. [PMID: 36839739 PMCID: PMC9965305 DOI: 10.3390/pharmaceutics15020417] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/15/2023] [Accepted: 01/19/2023] [Indexed: 01/28/2023] Open
Abstract
Electrospinning is the simplest and most widely used technology for producing ultra-thin fibers. During electrospinning, the high voltage causes a thin jet to be launched from the liquid polymer and then deposited onto the grounded collector. Depending on the type of the fluid, solution and melt electrospinning are distinguished. The morphology and physicochemical properties of the produced fibers depend on many factors, which can be categorized into three groups: process parameters, material properties, and ambient parameters. In the biomedical field, electrospun nanofibers have a wide variety of applications ranging from medication delivery systems to tissue engineering scaffolds and soft electronics. Many of these showed promising results for potential use as medical devices in the future. Medical devices are used to cure, prevent, or diagnose diseases without the presence of any active pharmaceutical ingredients. The regulation of conventional medical devices is strict and carefully controlled; however, it is not yet properly defined in the case of nanotechnology-made devices. This review is divided into two parts. The first part provides an overview on electrospinning through several examples, while the second part focuses on developments in the field of electrospun medical devices. Additionally, the relevant regulatory framework is summarized at the end of this paper.
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Affiliation(s)
| | - Rita Ambrus
- Faculty of Pharmacy, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös Street 6, H-6720 Szeged, Hungary
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Bakhtiary N, Pezeshki-Modaress M, Najmoddin N. Wet-electrospinning of nanofibrous magnetic composite 3-D scaffolds for enhanced stem cells neural differentiation. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Ghosh S, Haldar S, Gupta S, Chauhan S, Mago V, Roy P, Lahiri D. Single unit functionally graded bioresorbable electrospun scaffold for scar-free full-thickness skin wound healing. BIOMATERIALS ADVANCES 2022; 139:212980. [PMID: 35882136 DOI: 10.1016/j.bioadv.2022.212980] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/19/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Full-thickness wounds are difficult to heal spontaneously. Scaffolds, meant for treating full-thickness wounds, should ensure proper tissue regeneration, both structurally and functionally. An ideal scaffold should mimic the physical, mechanical and biochemical properties of natural skin. However, available mono- or bi-layer skin scaffolds lack in the precise architecture and functionality, thus, failing to provide scar-free regeneration of full-thickness skin wounds. These unmet challenges of scar-free skin regeneration have been addressed in the present study for the first time. This research deals with the synthesis of a low-cost, structurally and functionally graded single unit biodegradable polymeric scaffold. The functional gradient in this scaffold was achieved by varying polymer concentration and electrospinning parameters. This gradient in the scaffold provided the required microenvironment for proper functional and structural reconstruction of all the layers of natural skin. The mechanical property of the scaffold matched that of the natural skin. Besides, the degradation kinetics of the scaffold was in coordination with the regeneration time for the full-thickness wound. The porosity and hydrophilicity gradients of the scaffold helped it mimic the in vivo hypodermal, dermal and epidermal microenvironments of the skin, simultaneously. Co-culturing PCS-201 (dermal fibroblasts) and HaCaT (keratinocytes) on the scaffold resulted in successful regeneration through cellular proliferation, differentiation and organization of the skin tissue. The scaffold also displayed better wound healing in vivo, in terms of speedy wound closure and proper tissue regeneration, in comparison to the standard treatment. Altogether, this study successfully established a simple, one-step synthesis process of a functionally graded, bioresorbable scaffold for scar-free, native-like, structural and functional regeneration of full-thickness skin wounds. Due to cost-effectiveness, easy synthesis process and microarchitectural features, the designed scaffold possesses a potential of translation to a good commercial wound healing product.
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Affiliation(s)
- Souvik Ghosh
- Biomaterials and Multiscale Mechanics Lab, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India; Molecular Endocrinology Lab, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India; Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Swati Haldar
- Biomaterials and Multiscale Mechanics Lab, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India; Molecular Endocrinology Lab, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India; Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Sumeet Gupta
- Department of Pharmacy, Maharshi Markandeshwar University (Deemed to Be University), Mullana, Haryana 133207, India
| | - Samrat Chauhan
- Department of Pharmacy, Maharshi Markandeshwar University (Deemed to Be University), Mullana, Haryana 133207, India
| | - Vishal Mago
- Burns and Plastic Surgery Unit, All India Institute of Medical Sciences Rishikesh, Rishikesh, Uttarakhand 249203, India
| | - Partha Roy
- Molecular Endocrinology Lab, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Debrupa Lahiri
- Biomaterials and Multiscale Mechanics Lab, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India; Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India.
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7
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Venugopal D, Vishwakarma S, Kaur I, Samavedi S. Electrospun fiber-based strategies for controlling early innate immune cell responses: Towards immunomodulatory mesh designs that facilitate robust tissue repair. Acta Biomater 2022; 163:228-247. [PMID: 35675893 DOI: 10.1016/j.actbio.2022.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/16/2022] [Accepted: 06/01/2022] [Indexed: 12/16/2022]
Abstract
Electrospun fibrous meshes are widely used for tissue repair due to their ability to guide a host of cell responses including phenotypic differentiation and tissue maturation. A critical factor determining the eventual biological outcomes of mesh-based regeneration strategies is the early innate immune response following implantation. The natural healing process involves a sequence of tightly regulated, temporally varying and delicately balanced pro-/anti-inflammatory events which together promote mesh integration with host tissue. Matrix designs that do not account for the immune milieu can result in dysregulation, chronic inflammation and fibrous capsule formation, thus obliterating potential therapeutic outcomes. In this review, we provide systematic insights into the effects of specific fiber/mesh properties and mechanical stimulation on the responses of early innate immune modulators viz., neutrophils, monocytes and macrophages. We identify matrix characteristics that promote anti-inflammatory immune phenotypes, and we correlate such responses with pro-regenerative in vivo outcomes. We also discuss recent advances in 3D fabrication technologies, bioactive functionalization approaches and biomimetic/bioinspired immunomodulatory mesh design strategies for tissue repair and wound healing. The mechanobiological insights and immunoregulatory strategies discussed herein can help improve the translational outcomes of fiber-based regeneration and may also be leveraged for intervention in degenerative diseases associated with dysfunctional immune responses. STATEMENT OF SIGNIFICANCE: The crucial role played by immune cells in promoting biomaterial-based tissue regeneration is being increasingly recognized. In this review focusing on the interactions of innate immune cells (primarily neutrophils, monocytes and macrophages) with electrospun fibrous meshes, we systematically elucidate the effects of the fiber microenvironment and mechanical stimulation on biological responses, and build upon these insights to inform the rational design of immunomodulatory meshes for effective tissue repair. We discuss state-of-the-art fabrication methods and mechanobiological advances that permit the orchestration of temporally controlled phenotypic switches in immune cells during different phases of healing. The design strategies discussed herein can also be leveraged to target several complex autoimmune and inflammatory diseases.
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Zarubova J, Hasani-Sadrabadi MM, Ardehali R, Li S. Immunoengineering strategies to enhance vascularization and tissue regeneration. Adv Drug Deliv Rev 2022; 184:114233. [PMID: 35304171 PMCID: PMC10726003 DOI: 10.1016/j.addr.2022.114233] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 12/11/2022]
Abstract
Immune cells have emerged as powerful regulators of regenerative as well as pathological processes. The vast majority of regenerative immunoengineering efforts have focused on macrophages; however, growing evidence suggests that other cells of both the innate and adaptive immune system are as important for successful revascularization and tissue repair. Moreover, spatiotemporal regulation of immune cells and their signaling have a significant impact on the regeneration speed and the extent of functional recovery. In this review, we summarize the contribution of different types of immune cells to the healing process and discuss ways to manipulate and control immune cells in favor of vascularization and tissue regeneration. In addition to cell delivery and cell-free therapies using extracellular vesicles, we discuss in situ strategies and engineering approaches to attract specific types of immune cells and modulate their phenotypes. This field is making advances to uncover the extraordinary potential of immune cells and their secretome in the regulation of vascularization and tissue remodeling. Understanding the principles of immunoregulation will help us design advanced immunoengineering platforms to harness their power for tissue regeneration.
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Affiliation(s)
- Jana Zarubova
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA; Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | | | - Reza Ardehali
- Division of Cardiology, Department of Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Eli and Edythe Broad Stem Cell Research Center, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Song Li
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA; Eli and Edythe Broad Stem Cell Research Center, University of California, Los Angeles, CA 90095, USA; Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
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9
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Nazemi MM, Khodabandeh A, Hadjizadeh A. Near-Field Electrospinning: Crucial Parameters, Challenges, and Applications. ACS APPLIED BIO MATERIALS 2022; 5:394-412. [PMID: 34995437 DOI: 10.1021/acsabm.1c00944] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Near-field electrospinning (NFES) is a micro- or nanofiber production technology based on jetting molten polymer or polymer solution. Thanks to the programmable collector and nozzle movement, it can generate designed patterns in the presence of an electric field. Despite a few shortcomings of NFES, its high resolution, simplicity, precision, high throughput, reproducibility, and low costs have convinced researchers to employ it for various purposes. Furthermore, as the paradigm of fiber-based structures shifts from random textures toward delicate designs, NFES can bridge the gap between existing inefficient processes and aspired technologies for precise patterning. NFES facilitates the production of ultrafine nanofibers because it can be used to fabricate them in every laboratory. These robust fibers are convenient tools for small and additive manufacturing. As such, NFES is considered a potent additive fabrication technology that facilitates the production of complicated patterns as well. It is suggested that near-field electrospun fibers exhibit outstanding results in various applications, owing to their precise and controllable positioning. Meanwhile, the ongoing development of NFES has yet to reach its climax, making it attractive for further research. In this review, the basic principles of NFES, derivatives, limitations, and applications in nanomanufacturing, tissue engineering, microscale electronics, biosensors, and optics are presented.
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Affiliation(s)
- Mohammad Mehdi Nazemi
- Department of Biomaterials & Tissue Engineering, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran 159163-4311, Iran
| | - Alireza Khodabandeh
- Department of Biomaterials & Tissue Engineering, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran 159163-4311, Iran
| | - Afra Hadjizadeh
- Department of Biomaterials & Tissue Engineering, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran 159163-4311, Iran
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10
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Vahedipour A, Short MR, Timnak A, Maghsoudi OH, Hallowell T, Gerstenhaber J, Cappellari O, Lemay M, Spence AJ. A versatile system for neuromuscular stimulation and recording in the mouse model using a lightweight magnetically coupled headmount. J Neurosci Methods 2021; 362:109319. [PMID: 34400212 DOI: 10.1016/j.jneumeth.2021.109319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 08/06/2021] [Accepted: 08/09/2021] [Indexed: 11/26/2022]
Abstract
Neural stimulation and recording in rodents are common methods to better understand the nervous system and improve the quality of life of individuals who are suffering from neurological disorders (e.g., epilepsy), as well as for permanent reduction of chronic pain in patients with neuropathic pain and spinal-cord injury. This method requires a neural interface (e.g., a headmount) to couple the implanted neural device with instrumentation system. The size and the total weight of such headmounts should be designed in a way to minimize its effect on the movement of the animal. This is a crucial factor in gait, kinematic, and behavioral neuroscience studies of freely moving mice. Here we introduce a lightweight 'snap-in' electro-magnetic headmount that is extremely small, and uses strong neodymium magnetics to enable a reliable connection without sacrificing the lightweight of the device. Additionally, the headmount requires minimal surgical intervention during the implantation, resulting in minimal tissue damage. The device has demonstrated itself to be robust, and successfully provided direct electrical stimulation of nerve and electrical muscle stimulation and recording, as well as powering implanted LEDs for optogenetic use scenarios.
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Affiliation(s)
- Annie Vahedipour
- Department of Pediatrics, Neurology, Yale University, New Haven, CT 06510, USA.
| | - Matthew R Short
- Functional and Applied Biomechanics Section, Rehabilitation Medicine Department, National Institutes of Health, Bethesda, MD 20814, USA
| | - Azadeh Timnak
- Laboratory for Cell and Medicine, School of Medicine, Stanford University, Palo Alto, CA 94304, USA
| | - Omid Haji Maghsoudi
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Thomas Hallowell
- Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | | | - Ornella Cappellari
- Department of Pharmacy-Drug Science, University of Bari "Aldo Moro", 70125 Bari, Italy
| | - Michel Lemay
- Department of Bioengineering, Temple University, Philadelphia, PA 19122, USA
| | - Andrew J Spence
- Department of Bioengineering, Temple University, Philadelphia, PA 19122, USA
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11
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Hu X, Ricci S, Naranjo S, Hill Z, Gawason P. Protein and Polysaccharide-Based Electroactive and Conductive Materials for Biomedical Applications. Molecules 2021; 26:4499. [PMID: 34361653 PMCID: PMC8348981 DOI: 10.3390/molecules26154499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 11/16/2022] Open
Abstract
Electrically responsive biomaterials are an important and emerging technology in the fields of biomedical and material sciences. A great deal of research explores the integral role of electrical conduction in normal and diseased cell biology, and material scientists are focusing an even greater amount of attention on natural and hybrid materials as sources of biomaterials which can mimic the properties of cells. This review establishes a summary of those efforts for the latter group, detailing the current materials, theories, methods, and applications of electrically conductive biomaterials fabricated from protein polymers and polysaccharides. These materials can be used to improve human life through novel drug delivery, tissue regeneration, and biosensing technologies. The immediate goal of this review is to establish fabrication methods for protein and polysaccharide-based materials that are biocompatible and feature modular electrical properties. Ideally, these materials will be inexpensive to make with salable production strategies, in addition to being both renewable and biocompatible.
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Affiliation(s)
- Xiao Hu
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA; (S.R.); (Z.H.)
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA; (S.N.); (P.G.)
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
| | - Samuel Ricci
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA; (S.R.); (Z.H.)
| | - Sebastian Naranjo
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA; (S.N.); (P.G.)
| | - Zachary Hill
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA; (S.R.); (Z.H.)
| | - Peter Gawason
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA; (S.N.); (P.G.)
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12
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Popov Pereira da Cunha MD, Caracciolo PC, Abraham GA. Latest advances in electrospun plant-derived protein scaffolds for biomedical applications. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021. [DOI: 10.1016/j.cobme.2020.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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13
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Phelan MA, Kruczek K, Wilson JH, Brooks MJ, Drinnan CT, Regent F, Gerstenhaber JA, Swaroop A, Lelkes PI, Li T. Soy Protein Nanofiber Scaffolds for Uniform Maturation of Human Induced Pluripotent Stem Cell-Derived Retinal Pigment Epithelium. Tissue Eng Part C Methods 2020; 26:433-446. [PMID: 32635833 DOI: 10.1089/ten.tec.2020.0072] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Retinal pigment epithelium (RPE) differentiated from human induced pluripotent stem cells, called induced retinal pigment epithelium (iRPE), is being explored as a cell-based therapy for the treatment of retinal degenerative diseases, especially age-related macular degeneration. The success of RPE implantation is linked to the use of biomimetic scaffolds that simulate Bruch's membrane and promote RPE maturation and integration as a functional tissue. Due to difficulties associated with animal protein-derived scaffolds, including sterility and pro-inflammatory responses, current practices favor the use of synthetic polymers, such as polycaprolactone (PCL), for generating nanofibrous scaffolds. In this study, we tested the hypothesis that plant protein-derived fibrous scaffolds can provide favorable conditions permissive for the maturation of RPE tissue sheets in vitro. Our natural, soy protein-derived nanofibrous scaffolds exhibited a J-shaped stress-strain curve that more closely resembled the mechanical properties of native tissues than PCL with significantly higher hydrophilicity of the natural scaffolds, favoring in vivo implantation. We then demonstrate that iRPE sheets growing on these soy protein scaffolds are equivalent to iRPE monolayers cultured on synthetic PCL nanofibrous scaffolds. Immunohistochemistry demonstrated RPE-like morphology and functionality with appropriate localization of RPE markers RPE65, PMEL17, Ezrin, and ZO1 and with anticipated histotypic polarization of vascular endothelial growth factor and pigment epithelium-derived growth factor as indicated by enzyme-linked immunosorbent assay. Scanning electron microscopy revealed dense microvilli on the cell surface and homogeneous tight junctional contacts between the cells. Finally, comparative transcriptome analysis in conjunction with principal component analysis demonstrated that iRPE on nanofibrous scaffolds, either natural or synthetic, matured more consistently than on nonfibrous substrates. Taken together, our studies suggest that the maturation of cultured iRPE sheets for subsequent clinical applications might benefit from the use of nanofibrous scaffolds generated from natural proteins. Impact statement Induced retinal pigment epithelium (iRPE) from patient-derived induced pluripotent stem cells (iPSCs) may yield powerful treatments of retinal diseases, including age-related macular degeneration. Recent studies, including early human clinical trials, demonstrate the importance of selecting appropriate biomaterial scaffolds to support tissue-engineered iRPE sheets during implantation. Electrospun scaffolds show particular promise due to their similarity to the structure of the native Bruch's membrane. In this study, we describe the use of electroprocessed nanofibrous soy protein scaffolds to generate polarized sheets of human iPSC-derived iRPE sheets. Our evaluation, including RNA-seq transcriptomics, indicates that these scaffolds are viable alternatives to scaffolds electrospun from synthetic polymers.
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Affiliation(s)
- Michael A Phelan
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
- Integrated Laboratory for Cellular Tissue Engineering and Regenerative Medicine, Department of Bioengineering, College of Engineering, Temple University, Philadelphia, Pennsylvania, USA
| | - Kamil Kruczek
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - John H Wilson
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Matthew J Brooks
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Charles T Drinnan
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Florian Regent
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jonathan A Gerstenhaber
- Integrated Laboratory for Cellular Tissue Engineering and Regenerative Medicine, Department of Bioengineering, College of Engineering, Temple University, Philadelphia, Pennsylvania, USA
| | - Anand Swaroop
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Peter I Lelkes
- Integrated Laboratory for Cellular Tissue Engineering and Regenerative Medicine, Department of Bioengineering, College of Engineering, Temple University, Philadelphia, Pennsylvania, USA
| | - Tiansen Li
- Neurobiology, Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
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14
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Wang Z, Cui W. Two Sides of Electrospun Fiber in Promoting and Inhibiting Biomedical Processes. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Zhen Wang
- Shanghai Institute of Traumatology and Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Ruijin Hospital Shanghai Jiao Tong University School of Medicine 197 Ruijin 2nd Road Shanghai 200025 P. R. China
| | - Wenguo Cui
- Shanghai Institute of Traumatology and Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Ruijin Hospital Shanghai Jiao Tong University School of Medicine 197 Ruijin 2nd Road Shanghai 200025 P. R. China
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15
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Chen P, Li L, Dong L, Wang S, Huang Z, Qian Y, Wang C, Liu W, Yang L. Gradient Biomineralized Silk Fibroin Nanofibrous Scaffold with Osteochondral Inductivity for Integration of Tendon to Bone. ACS Biomater Sci Eng 2020; 7:841-851. [PMID: 33715375 DOI: 10.1021/acsbiomaterials.9b01683] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Enthesis injury repair remains a huge challenge because of the unique biomolecular composition, microstructure, and mechanics in the interfacial region. Surgical reconstruction often creates new bone-scaffold interfaces with mismatched properties, resulting in poor osseointegration. To mimic the natural interface tissue structures and properties, we fabricated a nanofibrous scaffold with gradient mineral coating based on 10 × simulated body fluid (SBF) and silk fibroin (SF). We then characterized the physicochemical properties of the scaffold and evaluated its biological functions both in vitro and in vivo. The results showed that different areas of SF nanofibrous scaffold had varying levels of mineralization with disparate mechanical properties and had different effects on bone marrow mesenchymal stem cell growth and differentiation. Furthermore, the gradient scaffolds exhibited an enhancement of integration in the tendon-to-bone interface with a higher ultimate load and more fibrocartilage-like tissue formation. These findings demonstrate that the silk-based nanofibrous scaffold with gradient mineral coating can regulate the formation of interfacial tissue and has the potential to be applied in interface tissue engineering.
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Affiliation(s)
- Peixing Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China
| | - Linhao Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, P. R. China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, P. R. China
| | - Lili Dong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China
| | - Sixiang Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China
| | - Zhi Huang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China
| | - Yuna Qian
- Wenzhou Institute of Biomaterials & Engineering, University of Chinese Academy of Sciences, Wenzhou 325001, P. R. China
| | - Chunli Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China
| | - Wanqian Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, P. R. China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, P. R. China
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16
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Zonderland J, Rezzola S, Wieringa P, Moroni L. Fiber diameter, porosity and functional group gradients in electrospun scaffolds. Biomed Mater 2020; 15:045020. [DOI: 10.1088/1748-605x/ab7b3c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Bargavi P, Ramya R, Chitra S, Vijayakumari S, Riju Chandran R, Durgalakshmi D, Rajashree P, Balakumar S. Bioactive, degradable and multi-functional three-dimensional membranous scaffolds of bioglass and alginate composites for tissue regenerative applications. Biomater Sci 2020; 8:4003-4025. [DOI: 10.1039/d0bm00714e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Multifunctional bioactive hydrogel ECM like membrane for 3D dynamic tissue/disease modelling.
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Affiliation(s)
- P. Bargavi
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - R. Ramya
- SRM Dental College
- SRMIST
- Chennai – 600089
- India
| | - S. Chitra
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - S. Vijayakumari
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - R. Riju Chandran
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
| | - D. Durgalakshmi
- Department of Medical Physics
- Anna University
- Chennai – 600 025
- India
| | - P. Rajashree
- CAS in Crystallography & Biophysics
- University of Madras
- Chennai – 600 025
- India
| | - S. Balakumar
- National Centre for Nanoscience and Nanotechnology
- University of Madras
- Chennai – 600 025
- India
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18
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Zha F, Chen W, Zhang L, Yu D. Electrospun natural polymer and its composite nanofibrous scaffolds for nerve tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:519-548. [DOI: 10.1080/09205063.2019.1697170] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fangwen Zha
- Department of Chemistry, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Science, State Key Laboratory of Electrical Insulation and Power Equipments, Xi'an Jiaotong University, Xi'an, Shaanxi, PR China
| | - Wei Chen
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, PR China
| | - Lifeng Zhang
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, NC A&T State University, Greensboro, NC, USA
| | - Demei Yu
- Department of Chemistry, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Science, State Key Laboratory of Electrical Insulation and Power Equipments, Xi'an Jiaotong University, Xi'an, Shaanxi, PR China
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19
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Fontoura JC, Viezzer C, Dos Santos FG, Ligabue RA, Weinlich R, Puga RD, Antonow D, Severino P, Bonorino C. Comparison of 2D and 3D cell culture models for cell growth, gene expression and drug resistance. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110264. [PMID: 31761183 DOI: 10.1016/j.msec.2019.110264] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 09/12/2019] [Accepted: 09/28/2019] [Indexed: 12/24/2022]
Abstract
In vitro drug screening is widely used in the development of new drugs, because they constitute a cost-effective approach to select compounds with more potential for therapy. They are also an attractive alternative to in vivo testing. However, most of these assays are done in two-dimensional culture models, where cells are grown on a polystyrene or glass flat surface. In order to develop in vitro models that would more closely resemble physiological conditions, three-dimensional models have been developed. Here, we introduce two novel fully synthetic scaffolds produced using the polymer polyhydroxybutyrate (PHB): a Solvent-Casting Particle-Leaching (SCPL) membrane; and an electrospun membrane, to be used for 3D cultures of B16 F10 murine melanoma cells and 4T1 murine breast cancer cells. A 2D cell culture system in regular tissue culture plates and a classical 3D model where cells are grown on a commercially available gel derived from Engelbreth-Holm Swarm (EHS) tumor were used for comparison with the synthetic scaffolds. Cells were also collected from in vivo tumors grown as grafts in syngeneic mice. Morphology, cell viability, response to chemotherapy and gene expression analysis were used to compare all systems. In the electrospun membrane model, cells were grown on nanometer-scale fibers and in the SCPL membrane, which provides a foam-like structure for cell growth, pore sizes varied. Cells grown on all 3D models were able to form aggregates and spheroids, allowing for increased cell-cell contact when compared with the 2D system. Cell morphology was also more similar between 3D systems and cells collected from the in vivo tumors. Cells grown in 3D models showed an increase in resistance to dacarbazine, and cisplatin. Gene expression analysis also revealed similarities among all 3D platforms. The similarities between the two synthetic systems to the classic EHS gel model highlight their potential application as cost effective substitutes in drug screening, in which fully synthetic models could represent a step towards higher reproducibility. We conclude PHB synthetic membranes offer a valuable alternative for 3D cultures.
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Affiliation(s)
- Julia C Fontoura
- Laboratório de Imunologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil; Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde, Porto Alegre, RS, Brazil
| | - Christian Viezzer
- Laboratório de Imunologia Celular e Molecular, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | | | - Rosane A Ligabue
- Laboratório de Caracterização de Materiais, PUCRS, Porto Alegre, RS, Brazil
| | | | - Renato D Puga
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Dyeison Antonow
- Institute of Petroleum and Natural Resources (IPR), Tecnopuc, PUCRS, Porto Alegre, RS, Brazil
| | | | - Cristina Bonorino
- Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde, Porto Alegre, RS, Brazil; Department of Surgery, School of Medicine, University of California at San Diego, United States.
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20
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Biomimicry in Bio-Manufacturing: Developments in Melt Electrospinning Writing Technology Towards Hybrid Biomanufacturing. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9173540] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Melt electrospinning writing has been emerged as a promising technique in the field of tissue engineering, with the capability of fabricating controllable and highly ordered complex three-dimensional geometries from a wide range of polymers. This three-dimensional (3D) printing method can be used to fabricate scaffolds biomimicking extracellular matrix of replaced tissue with the required mechanical properties. However, controlled and homogeneous cell attachment on melt electrospun fibers is a challenge. The combination of melt electrospinning writing with other tissue engineering approaches, called hybrid biomanufacturing, has introduced new perspectives and increased its potential applications in tissue engineering. In this review, principles and key parameters, challenges, and opportunities of melt electrospinning writing, and particularly, recent approaches and materials in this field are introduced. Subsequently, hybrid biomanufacturing strategies are presented for improved biological and mechanical properties of the manufactured porous structures. An overview of the possible hybrid setups and applications, future perspective of hybrid processes, guidelines, and opportunities in different areas of tissue/organ engineering are also highlighted.
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21
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Tan GZ, Zhou Y. Electrospinning of biomimetic fibrous scaffolds for tissue engineering: a review. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1636248] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- George Z. Tan
- Department of Industrial, Manufacturing and Systems Engineering, Texas Tech University, Lubbock, TX, USA
| | - Yingge Zhou
- Department of Industrial, Manufacturing and Systems Engineering, Texas Tech University, Lubbock, TX, USA
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