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Mim JJ, Hasan M, Chowdhury MS, Ghosh J, Mobarak MH, Khanom F, Hossain N. A comprehensive review on the biomedical frontiers of nanowire applications. Heliyon 2024; 10:e29244. [PMID: 38628721 PMCID: PMC11016983 DOI: 10.1016/j.heliyon.2024.e29244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 04/03/2024] [Accepted: 04/03/2024] [Indexed: 04/19/2024] Open
Abstract
This comprehensive review examines the immense capacity of nanowires, nanostructures characterized by unbounded dimensions, to profoundly transform the field of biomedicine. Nanowires, which are created by combining several materials using techniques such as electrospinning and vapor deposition, possess distinct mechanical, optical, and electrical properties. As a result, they are well-suited for use in nanoscale electronic devices, drug delivery systems, chemical sensors, and other applications. The utilization of techniques such as the vapor-liquid-solid (VLS) approach and template-assisted approaches enables the achievement of precision in synthesis. This precision allows for the customization of characteristics, which in turn enables the capability of intracellular sensing and accurate drug administration. Nanowires exhibit potential in biomedical imaging, neural interfacing, and tissue engineering, despite obstacles related to biocompatibility and scalable manufacturing. They possess multifunctional capabilities that have the potential to greatly influence the intersection of nanotechnology and healthcare. Surmounting present obstacles has the potential to unleash the complete capabilities of nanowires, leading to significant improvements in diagnostics, biosensing, regenerative medicine, and next-generation point-of-care medicines.
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Affiliation(s)
- Juhi Jannat Mim
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Mehedi Hasan
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Shakil Chowdhury
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Jubaraz Ghosh
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Hosne Mobarak
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Fahmida Khanom
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Nayem Hossain
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
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2
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Yan B, Hua Y, Wang J, Shao T, Wang S, Gao X, Gao J. Surface Modification Progress for PLGA-Based Cell Scaffolds. Polymers (Basel) 2024; 16:165. [PMID: 38201830 PMCID: PMC10780542 DOI: 10.3390/polym16010165] [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: 12/04/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Poly(lactic-glycolic acid) (PLGA) is a biocompatible bio-scaffold material, but its own hydrophobic and electrically neutral surface limits its application as a cell scaffold. Polymer materials, mimics ECM materials, and organic material have often been used as coating materials for PLGA cell scaffolds to improve the poor cell adhesion of PLGA and enhance tissue adaptation. These coating materials can be modified on the PLGA surface via simple physical or chemical methods, and coating multiple materials can simultaneously confer different functions to the PLGA scaffold; not only does this ensure stronger cell adhesion but it also modulates cell behavior and function. This approach to coating could facilitate the production of more PLGA-based cell scaffolds. This review focuses on the PLGA surface-modified materials, methods, and applications, and will provide guidance for PLGA surface modification.
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Affiliation(s)
- Bohua Yan
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China; (B.Y.); (J.W.); (T.S.); (S.W.)
| | - Yabing Hua
- Department of Pharmacy, Xuzhou Medical University Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China;
| | - Jinyue Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China; (B.Y.); (J.W.); (T.S.); (S.W.)
| | - Tianjiao Shao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China; (B.Y.); (J.W.); (T.S.); (S.W.)
| | - Shan Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China; (B.Y.); (J.W.); (T.S.); (S.W.)
| | - Xiang Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China; (B.Y.); (J.W.); (T.S.); (S.W.)
| | - Jing Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China; (B.Y.); (J.W.); (T.S.); (S.W.)
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Xiong F, Wei S, Wu S, Jiang W, Li B, Xuan H, Xue Y, Yuan H. Aligned Electroactive Electrospun Fibrous Scaffolds for Peripheral Nerve Regeneration. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41385-41402. [PMID: 37606339 DOI: 10.1021/acsami.3c09237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Effective repair and functional recovery of large peripheral nerve deficits are urgent clinical needs. A biofunctional electroactive scaffold typically acts as a "bridge" for the repair of large nerve defects. In this study, we constructed a biomimetic piezoelectric and conductive aligned polypyrrole (PPy)/polydopamine (PDA)/poly-l-lactic acid (PLLA) electrospun fibrous scaffold to improve the hydrophilicity and cellular compatibility of PLLA and restore the weakened piezoelectric effect of PDA, which is beneficial in promoting Schwann cell differentiation and dorsal root ganglion neuronal extension and alignment. The aligned PPy/PDA/PLLA fibrous scaffold bridged the sciatic nerve of Sprague-Dawley rats with a 10 mm deficit, prevented autotomy, and promoted nerve regeneration and functional recovery, thereby activating the calcium and AMP-activated protein kinase signaling pathways. Therefore, electroactive fibrous scaffolds exhibit great potential for neural tissue regeneration.
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Affiliation(s)
- Feng Xiong
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Shuo Wei
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Shuyuan Wu
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Wei Jiang
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Biyun Li
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Hongyun Xuan
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Ye Xue
- School of Life Sciences, Nantong University, 226019 Nantong, China
| | - Huihua Yuan
- School of Life Sciences, Nantong University, 226019 Nantong, China
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4
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Cortés-Llanos B, Rauti R, Ayuso-Sacido Á, Pérez L, Ballerini L. Impact of Magnetite Nanowires on In Vitro Hippocampal Neural Networks. Biomolecules 2023; 13:biom13050783. [PMID: 37238653 DOI: 10.3390/biom13050783] [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: 03/16/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Nanomaterials design, synthesis, and characterization are ever-expanding approaches toward developing biodevices or neural interfaces to treat neurological diseases. The ability of nanomaterials features to tune neuronal networks' morphology or functionality is still under study. In this work, we unveil how interfacing mammalian brain cultured neurons and iron oxide nanowires' (NWs) orientation affect neuronal and glial densities and network activity. Iron oxide NWs were synthesized by electrodeposition, fixing the diameter to 100 nm and the length to 1 µm. Scanning electron microscopy, Raman, and contact angle measurements were performed to characterize the NWs' morphology, chemical composition, and hydrophilicity. Hippocampal cultures were seeded on NWs devices, and after 14 days, the cell morphology was studied by immunocytochemistry and confocal microscopy. Live calcium imaging was performed to study neuronal activity. Using random nanowires (R-NWs), higher neuronal and glial cell densities were obtained compared with the control and vertical nanowires (V-NWs), while using V-NWs, more stellate glial cells were found. R-NWs produced a reduction in neuronal activity, while V-NWs increased the neuronal network activity, possibly due to a higher neuronal maturity and a lower number of GABAergic neurons, respectively. These results highlight the potential of NWs manipulations to design ad hoc regenerative interfaces.
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Affiliation(s)
- Belén Cortés-Llanos
- Departamento de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Fundación IMDEA Nanociencia, C/Faraday 9, 28049 Madrid, Spain
- Department of Medicine, Duke University, Durham, NC 27705, USA
| | - Rossana Rauti
- International School for Advanced Studies (ISAS-SISSA), 34136 Trieste, Italy
- Deparment of Biomolecular Sciences, Università degli Studi di Urbino Carlo Bo, 61029 Urbino, Italy
| | - Ángel Ayuso-Sacido
- Brain Tumor Laboratory, Fundación Vithas, Grupo Hospitales Vithas, 28043 Madrid, Spain
- Faculty of Experimental Science and Faculty of Medicine, University of Francisco de Vitoria, 28223 Madrid, Spain
| | - Lucas Pérez
- Departamento de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Fundación IMDEA Nanociencia, C/Faraday 9, 28049 Madrid, Spain
| | - Laura Ballerini
- International School for Advanced Studies (ISAS-SISSA), 34136 Trieste, Italy
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5
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Pereira I, Lopez-Martinez MJ, Villasante A, Introna C, Tornero D, Canals JM, Samitier J. Hyaluronic acid-based bioink improves the differentiation and network formation of neural progenitor cells. Front Bioeng Biotechnol 2023; 11:1110547. [PMID: 36937768 PMCID: PMC10020230 DOI: 10.3389/fbioe.2023.1110547] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Introduction: Three-dimensional (3D) bioprinting is a promising technique for the development of neuronal in vitro models because it controls the deposition of materials and cells. Finding a biomaterial that supports neural differentiation in vitro while ensuring compatibility with the technique of 3D bioprinting of a self-standing construct is a challenge. Methods: In this study, gelatin methacryloyl (GelMA), methacrylated alginate (AlgMA), and hyaluronic acid (HA) were examined by exploiting their biocompatibility and tunable mechanical properties to resemble the extracellular matrix (ECM) and to create a suitable material for printing neural progenitor cells (NPCs), supporting their long-term differentiation. NPCs were printed and differentiated for up to 15 days, and cell viability and neuronal differentiation markers were assessed throughout the culture. Results and Discussion: This composite biomaterial presented the desired physical properties to mimic the ECM of the brain with high water intake, low stiffness, and slow degradation while allowing the printing of defined structures. The viability rates were maintained at approximately 80% at all time points. However, the levels of β-III tubulin marker increased over time, demonstrating the compatibility of this biomaterial with neuronal cell culture and differentiation. Furthermore, these cells showed increased maturation with corresponding functional properties, which was also demonstrated by the formation of a neuronal network that was observed by recording spontaneous activity via Ca2+ imaging.
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Affiliation(s)
- Inês Pereira
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Maria J. Lopez-Martinez
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
- Biomedical Research Networking, Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Aranzazu Villasante
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
| | - Clelia Introna
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
- Creatio - Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Research Foundation Clinic Barcelona-August Pi i Sunyer Biomedical Research Institute (FRCB-IDIBAPS), Barcelona, Spain
| | - Daniel Tornero
- Research Foundation Clinic Barcelona-August Pi i Sunyer Biomedical Research Institute (FRCB-IDIBAPS), Barcelona, Spain
- Laboratory of Neuronal Stem Cells and Cerebral Damage, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
| | - Josep M. Canals
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
- Creatio - Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Research Foundation Clinic Barcelona-August Pi i Sunyer Biomedical Research Institute (FRCB-IDIBAPS), Barcelona, Spain
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
- Biomedical Research Networking, Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
- *Correspondence: Josep Samitier,
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6
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Zhao G, Zhou H, Jin G, Jin B, Geng S, Luo Z, Ge Z, Xu F. Rational Design of Electrically Conductive Biomaterials toward Excitable Tissues Regeneration. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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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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8
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Kiyotake EA, Martin MD, Detamore MS. Regenerative rehabilitation with conductive biomaterials for spinal cord injury. Acta Biomater 2022; 139:43-64. [PMID: 33326879 DOI: 10.1016/j.actbio.2020.12.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/24/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023]
Abstract
The individual approaches of regenerative medicine efforts alone and rehabilitation efforts alone have not yet fully restored function after severe spinal cord injury (SCI). Regenerative rehabilitation may be leveraged to promote regeneration of the spinal cord tissue, and promote reorganization of the regenerated neural pathways and intact spinal circuits for better functional recovery for SCI. Conductive biomaterials may be a linchpin that empowers the synergy between regenerative medicine and rehabilitation approaches, as electrical stimulation applied to the spinal cord could facilitate neural reorganization. In this review, we discuss current regenerative medicine approaches in clinical trials and the rehabilitation, or neuromodulation, approaches for SCI, along with their respective translational limitations. Furthermore, we review the translational potential, in a surgical context, of conductive biomaterials (e.g., conductive polymers, carbon-based materials, metallic nanoparticle-based materials) as they pertain to SCI. While pre-formed scaffolds may be difficult to translate to human contusion SCIs, injectable composites that contain blended conductive components and can form within the injury may be more translational. However, given that there are currently no in vivo SCI studies that evaluated conductive materials combined with rehabilitation approaches, we discuss several limitations of conductive biomaterials, including demonstrating safety and efficacy, that will need to be addressed in the future for conductive biomaterials to become SCI therapeutics. Even so, the use of conductive biomaterials creates a synergistic opportunity to merge the fields of regenerative medicine and rehabilitation and redefine what regenerative rehabilitation means for the spinal cord. STATEMENT OF SIGNIFICANCE: For spinal cord injury (SCI), the individual approaches of regenerative medicine and rehabilitation are insufficient to fully restore functional recovery; however, the goal of regenerative rehabilitation is to combine these two disparate fields to maximize the functional outcomes. Concepts similar to regenerative rehabilitation for SCI have been discussed in several reviews, but for the first time, this review considers how conductive biomaterials may synergize the two approaches. We cover current regenerative medicine and rehabilitation approaches for SCI, and the translational advantages and disadvantages, in a surgical context, of conductive biomaterials used in biomedical applications that may be additionally applied to SCI. Furthermore, we identify the current limitations and translational challenges for conductive biomaterials before they may become therapeutics for SCI.
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9
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Electro‐conductive nanofibrous structure based on
PGS
/
PCL
coated with
PPy
by in situ chemical polymerization applicable as cardiac patch: Fabrication and optimization. J Appl Polym Sci 2022. [DOI: 10.1002/app.52136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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The electrochemical potential is a key parameter for cell adhesion and proliferation on carbon surface. Bioelectrochemistry 2021; 144:108045. [PMID: 35016068 DOI: 10.1016/j.bioelechem.2021.108045] [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: 10/14/2021] [Revised: 11/26/2021] [Accepted: 12/22/2021] [Indexed: 01/05/2023]
Abstract
The Nernst potential of the support/cell interface is suspected to play a key role in cell adhesion and proliferation. However, the studies that have addressed this topic have generally varied the electrochemical potential of the interface by comparing different materials or by varying the chemical composition of the surface coating. It is consequently hard to definitively separate the actual effect of the potential from possible side-effects due to differences in the surface composition or topography. Here, a 3-electrode set-up was used to apply different values of potential to identical carbon electrodes. Potentials were applied in the range -200 to 400 mV vs. silver pseudo-reference (SPR), i.e. 90 to 690 mV/SHE, to screen-printed carbon electrodes used to grow Vero or Raw 264.7 cell lines. Values up to 200 mV/SPR prohibited cell adhesion and even caused detachment of cells that were previously adhered. The value of 400 mV/DRP allowed cell adhesion and proliferation, leading to confluent and sometimes very compact mats. The zero charge potential, measured around 200 mV/DRP, showed that the drastic effect of the applied potential was probably due to the negative/positive switch of the surface charge.
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11
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Chen Y, Alba M, Tieu T, Tong Z, Minhas RS, Rudd D, Voelcker NH, Cifuentes-Rius A, Elnathan R. Engineering Micro–Nanomaterials for Biomedical Translation. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Yaping Chen
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility 151 Wellington Road Clayton VIC 3168 Australia
| | - Maria Alba
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility 151 Wellington Road Clayton VIC 3168 Australia
| | - Terence Tieu
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton VIC 3168 Australia
| | - Ziqiu Tong
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
| | - Rajpreet Singh Minhas
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility 151 Wellington Road Clayton VIC 3168 Australia
| | - David Rudd
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility 151 Wellington Road Clayton VIC 3168 Australia
| | - Nicolas H. Voelcker
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility 151 Wellington Road Clayton VIC 3168 Australia
- Department of Materials Science and Engineering Monash University 22 Alliance Lane Clayton VIC 3168 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO) Clayton VIC 3168 Australia
- INM-Leibniz Institute for New Materials Campus D2 2 Saarbrücken 66123 Germany
| | - Anna Cifuentes-Rius
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
| | - Roey Elnathan
- Monash Institute of Pharmaceutical Sciences Monash University 381 Royal Parade Parkville VIC 3052 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility 151 Wellington Road Clayton VIC 3168 Australia
- Department of Materials Science and Engineering Monash University 22 Alliance Lane Clayton VIC 3168 Australia
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12
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Electrically conductive biomaterials based on natural polysaccharides: Challenges and applications in tissue engineering. Int J Biol Macromol 2019; 141:636-662. [DOI: 10.1016/j.ijbiomac.2019.09.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 01/01/2023]
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13
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Ince Yardimci A, Baskan O, Yilmaz S, Mese G, Ozcivici E, Selamet Y. Osteogenic differentiation of mesenchymal stem cells on random and aligned PAN/PPy nanofibrous scaffolds. J Biomater Appl 2019; 34:640-650. [DOI: 10.1177/0885328219865068] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Atike Ince Yardimci
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Oznur Baskan
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Selahattin Yilmaz
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Gulistan Mese
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Engin Ozcivici
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
| | - Yusuf Selamet
- Material Science and Engineering Department, Izmir Institute of Technology – Gulbahce Campus, Urla, Turkey
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14
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Abbasian M, Massoumi B, Mohammad-Rezaei R, Samadian H, Jaymand M. Scaffolding polymeric biomaterials: Are naturally occurring biological macromolecules more appropriate for tissue engineering? Int J Biol Macromol 2019; 134:673-694. [PMID: 31054302 DOI: 10.1016/j.ijbiomac.2019.04.197] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/15/2019] [Accepted: 04/30/2019] [Indexed: 12/14/2022]
Abstract
Nowadays, tissue and organ failures resulted from injury, aging accounts, diseases or other type of damages is one of the most important health problems with an increasing incidence worldwide. Current treatments have limitations including, low graft efficiency, shortage of donor organs, as well as immunological problems. In this context, tissue engineering (TE) was introduced as a novel and versatile approach for restoring tissue/organ function using living cells, scaffold and bioactive (macro-)molecules. Among these, scaffold as a three-dimensional (3D) support material, provide physical and chemical cues for seeding cells and has an essential role in cell missions. Among the wide verity of scaffolding materials, natural or synthetic biopolymers are the most commonly biomaterials mainly due to their unique physicochemical and biological features. In this context, naturally occurring biological macromolecules are particular of interest owing to their low immunogenicity, excellent biocompatibility and cytocompatibility, as well as antigenicity that qualified them as popular choices for scaffolding applications. In this review, we highlighted the potentials of natural and synthetic polymers as scaffolding materials. The properties, advantages, and disadvantages of both polymer types as well as the current status, challenges, and recent progresses regarding the application of them as scaffolding biomaterials are also discussed.
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Affiliation(s)
- Mojtaba Abbasian
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Bakhshali Massoumi
- Department of Chemistry, Payame Noor University, P.O. Box: 19395-3697, Tehran, Iran
| | - Rahim Mohammad-Rezaei
- Analytical Chemistry Research Laboratory, Faculty of Sciences, Azarbaijan Shahid Madani University, P.O. Box: 53714-161, Tabriz, Iran
| | - Hadi Samadian
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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15
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Hosoyama K, Ahumada M, Goel K, Ruel M, Suuronen EJ, Alarcon EI. Electroconductive materials as biomimetic platforms for tissue regeneration. Biotechnol Adv 2019; 37:444-458. [DOI: 10.1016/j.biotechadv.2019.02.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/03/2019] [Accepted: 02/19/2019] [Indexed: 02/07/2023]
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16
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Balasubramanian S, Sheelam A, Ramanujam K, Dhamodharan R. Green, Seed-Mediated Synthesis of Au Nanowires and Their Efficient Electrocatalytic Activity in Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28876-28886. [PMID: 28795794 DOI: 10.1021/acsami.7b07553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new, simple, green method for the synthesis of Au nanowires (average diameter 8 nm and several micrometers in length) using Au seeds prepared from bael gum (BG) is reported. The nanowires are characterized using UV-visible absorption spectroscopy, powder X-ray diffraction, transmission electron microscopy (TEM), and high-resolution-TEM. It is observed that the rate of the reduction process might be the decisive factor for the shape selectivity, as evident from the formation of nanowires at a particular concentration of seeds and NaOH. The polysaccharide present in BG is the active ingredient for the synthesis of Au nanowires, while the small molecules present in BG, when used alone, did not result in nanowire formation. The TEM images of the precursor to the Au nanowires suggested that new, nucleated particles align in a linear manner and fuse with one another, resulting in the nanowire. The linear fusion of the newly nucleated particles could be due to the lack of adequate protecting agent and the presence of Au complex adsorbed to the surface. The electrochemical activity of the nanowires for oxygen reduction reaction (ORR) is assessed and compared with that of nanotriangles and spherical nanoparticles of Au. The performance of Au nanowire is better than Au-nanomaterials (heat-treated as well as non-heat-treated), Au seeds, and clusters. The better efficiency of the nanowires when compared to that of the other reported catalysts is attributed to the presence of active (100) facets with numerous corners, edges, and surface defects.
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Affiliation(s)
| | - Anjaiah Sheelam
- Department of Chemistry, I.I.T. Madras , Chennai 600 036, India
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He Y, Wang S, Mu J, Dai L, Zhang Z, Sun Y, Shi W, Ge D. Synthesis of polypyrrole nanowires with positive effect on MC3T3-E1 cell functions through electrical stimulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:43-50. [DOI: 10.1016/j.msec.2016.09.067] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/21/2016] [Accepted: 09/28/2016] [Indexed: 10/20/2022]
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18
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Neurobiochemical changes in the vicinity of a nanostructured neural implant. Sci Rep 2016; 6:35944. [PMID: 27775024 PMCID: PMC5075914 DOI: 10.1038/srep35944] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 10/07/2016] [Indexed: 01/22/2023] Open
Abstract
Neural interface technologies including recording and stimulation electrodes are currently in the early phase of clinical trials aiming to help patients with spinal cord injuries, degenerative disorders, strokes interrupting descending motor pathways, or limb amputations. Their lifetime is of key importance; however, it is limited by the foreign body response of the tissue causing the loss of neurons and a reactive astrogliosis around the implant surface. Improving the biocompatibility of implant surfaces, especially promoting neuronal attachment and regeneration is therefore essential. In our work, bioactive properties of implanted black polySi nanostructured surfaces (520–800 nm long nanopillars with a diameter of 150–200 nm) were investigated and compared to microstructured Si surfaces in eight-week-long in vivo experiments. Glial encapsulation and local neuronal cell loss were characterised using GFAP and NeuN immunostaining respectively, followed by systematic image analysis. Regarding the severity of gliosis, no significant difference was observed in the vicinity of the different implant surfaces, however, the number of surviving neurons close to the nanostructured surface was higher than that of the microstructured ones. Our results imply that the functionality of implanted microelectrodes covered by Si nanopillars may lead to improved long-term recordings.
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Shin SR, Li YC, Jang HL, Khoshakhlagh P, Akbari M, Nasajpour A, Zhang YS, Tamayol A, Khademhosseini A. Graphene-based materials for tissue engineering. Adv Drug Deliv Rev 2016; 105:255-274. [PMID: 27037064 PMCID: PMC5039063 DOI: 10.1016/j.addr.2016.03.007] [Citation(s) in RCA: 346] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/16/2016] [Accepted: 03/17/2016] [Indexed: 01/16/2023]
Abstract
Graphene and its chemical derivatives have been a pivotal new class of nanomaterials and a model system for quantum behavior. The material's excellent electrical conductivity, biocompatibility, surface area and thermal properties are of much interest to the scientific community. Two-dimensional graphene materials have been widely used in various biomedical research areas such as bioelectronics, imaging, drug delivery, and tissue engineering. In this review, we will highlight the recent applications of graphene-based materials in tissue engineering and regenerative medicine. In particular, we will discuss the application of graphene-based materials in cardiac, neural, bone, cartilage, skeletal muscle, and skin/adipose tissue engineering. We will also discuss the potential risk factors of graphene-based materials in tissue engineering. In conclusion, we will outline the opportunities in the usage of graphene-based materials for clinical applications.
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Affiliation(s)
- Su Ryon Shin
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA.
| | - Yi-Chen Li
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Hae Lin Jang
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Parastoo Khoshakhlagh
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Mohsen Akbari
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Mechanical Engineering, University of Victoria, Victoria, V8P 5C2, Canada
| | - Amir Nasajpour
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Ali Tamayol
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA; Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia; College of Animal Bioscience and Technology, Department of Bioindustrial Technologies, Konkuk University, Hwayang-dong, Kwangjin-gu, Seoul 143-701, Republic of Korea.
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20
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Zhou ZF, Zhang F, Wang JG, Chen QC, Yang WZ, He N, Jiang YY, Chen F, Liu JJ. Electrospinning of PELA/PPY Fibrous Conduits: Promoting Peripheral Nerve Regeneration in Rats by Self-Originated Electrical Stimulation. ACS Biomater Sci Eng 2016; 2:1572-1581. [PMID: 33440592 DOI: 10.1021/acsbiomaterials.6b00335] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Peripheral nerve injuries represent a great challenge for surgeons. The conductive neural scaffold has experienced increasing interest because of its good biocompatibility and similar electrical properties as compared to those of a normal nerve. Herein, nerve conduits made from poly(d,l-lactide)-co-poly(ethylene glycol) and polypyrrole (20%, 30%, and 50%) (PELA-PPY) were prepared by electrospinning, and used in regeneration of peripheral nerve defects. The results of an in vitro experiment indicated a high biocompatibility for the as-prepared materials, supporting the attachment and proliferation of a rat pheochromocytoma PC-12 cell. Furthermore, the PELA-PPY nerve conduit implanted in the sciatic nerve defects (10 mm) of the Spraguee-Dawley rats for 12 weeks showed similar results with the autograft, while it demonstrated a better outcome than the PELA nerve conduit in electrophysiological examination, sciatic function index, total amount of regenerated myelinated nerve fibers, axon diameter, myelin thickness, and several immunohistochemistry indices (S-100, laminin, neurofilament, bromodeoxyuridine, and glial fibrillary acidic portein). We supposed that the bioactivity is mainly generated by the PPY in composite nanofibers which could transmit self-originated electrical stimulation between cells. Due to the facile preparation and excellent in vivo performance, the PPY-PELA nerve conduit is promising for use as a bioengineered biomaterial for peripheral nerve regeneration.
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Affiliation(s)
- Zi-Fei Zhou
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China.,Department of Orthopedic Surgery, Shanghai East Hospital, Tongji University, Shanghai 200072, China
| | - Fan Zhang
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Jian-Guang Wang
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Quan-Chi Chen
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Wei-Zhi Yang
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Ning He
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Ying-Ying Jiang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Feng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Jun-Jian Liu
- Department of Orthopedic Surgery, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
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Spearman BS, Hodge AJ, Porter JL, Hardy JG, Davis ZD, Xu T, Zhang X, Schmidt CE, Hamilton MC, Lipke EA. Conductive interpenetrating networks of polypyrrole and polycaprolactone encourage electrophysiological development of cardiac cells. Acta Biomater 2015; 28:109-120. [PMID: 26407651 DOI: 10.1016/j.actbio.2015.09.025] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 07/21/2015] [Accepted: 09/21/2015] [Indexed: 11/29/2022]
Abstract
Conductive and electroactive polymers have the potential to enhance engineered cardiac tissue function. In this study, an interpenetrating network of the electrically-conductive polymer polypyrrole (PPy) was grown within a matrix of flexible polycaprolactone (PCL) and evaluated as a platform for directing the formation of functional cardiac cell sheets. PCL films were either treated with sodium hydroxide to render them more hydrophilic and enhance cell adhesion or rendered electroactive with PPy grown via chemical polymerization yielding PPy-PCL that had a resistivity of 1.0 ± 0.4 kΩ cm, which is similar to native cardiac tissue. Both PCL and PPy-PCL films supported cardiomyocyte attachment; increasing the duration of PCL pre-treatment with NaOH resulted in higher numbers of adherent cardiomyocytes per unit area, generating cell densities which were more similar to those on PPy-PCL films (1568 ± 126 cells mm(-2), 2880 ± 439 cells mm(-2), 3623 ± 456 cells mm(-2) for PCL with 0, 24, 48 h of NaOH pretreatment, respectively; 2434 ± 166 cells mm(-2) for PPy-PCL). When cardiomyocytes were cultured on the electrically-conductive PPy-PCL, more cells were observed to have peripheral localization of the gap junction protein connexin-43 (Cx43) as compared to cells on NaOH-treated PCL (60.3 ± 4.3% vs. 46.6 ± 5.7%). Cx43 gene expression remained unchanged between materials. Importantly, the velocity of calcium wave propagation was faster and calcium transient duration was shorter for cardiomyocyte monolayers on PPy-PCL (1612 ± 143 μm/s, 910 ± 63 ms) relative to cells on PCL (1129 ± 247 μm/s, 1130 ± 20 ms). In summary, PPy-PCL has demonstrated suitability as an electrically-conductive substrate for culture of cardiomyocytes, yielding enhanced functional properties; results encourage further development of conductive substrates for use in differentiation of stem cell-derived cardiomyocytes and cardiac tissue engineering applications. STATEMENT OF SIGNIFICANCE Current conductive materials for use in cardiac regeneration are limited by cytotoxicity or cost in implementation. In this manuscript, we demonstrate for the first time the application of a biocompatible, conductive polypyrrole-polycaprolactone film as a platform for culturing cardiomyocytes for cardiac regeneration. This study shows that the novel conductive film is capable of enhancing cell-cell communication through the formation of connexin-43, leading to higher velocities for calcium wave propagation and reduced calcium transient durations among cultured cardiomyocyte monolayers. Furthermore, it was demonstrated that chemical modification of polycaprolactone through alkaline-mediated hydrolysis increased overall cardiomyocyte adhesion. The results of this study provide insight into how cardiomyocytes interact with conductive substrates and will inform future research efforts to enhance the functional properties of cardiomyocytes, which is critical for their use in pharmaceutical testing and cell therapy.
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Affiliation(s)
| | - Alexander J Hodge
- Department of Chemical Engineering, Auburn University, United States
| | - John L Porter
- Department of Electrical and Computer Engineering, Auburn University, United States
| | - John G Hardy
- Department of Biomedical Engineering, University of Florida, United States
| | - Zenda D Davis
- Department of Chemical Engineering, Auburn University, United States
| | - Teng Xu
- Department of Chemical Engineering, Auburn University, United States
| | - Xinyu Zhang
- Department of Chemical Engineering, Auburn University, United States
| | | | - Michael C Hamilton
- Department of Electrical and Computer Engineering, Auburn University, United States
| | - Elizabeth A Lipke
- Department of Chemical Engineering, Auburn University, United States.
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Kim H, Kim I, Choi HJ, Kim SY, Yang EG. Neuron-like differentiation of mesenchymal stem cells on silicon nanowires. NANOSCALE 2015; 7:17131-17138. [PMID: 26422757 DOI: 10.1039/c5nr05787f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The behavior of mammalian cells on vertical nanowire (NW) arrays, including cell spreading and the dynamic distribution of focal adhesions and cytoskeletal proteins, has been intensively studied to extend the implications for cellular manipulations in vitro. Prompted by the result that cells on silicon (Si) NWs showed morphological changes and reduced migration rates, we have explored the transition of mesenchymal stem cells into a neuronal lineage by using SiNWs with varying lengths. When human mesenchymal stem cells (hMSCs) were cultured on the longest SiNWs for 3 days, most of the cells exhibited elongated shapes with neurite-like extensions and dot-like focal adhesions that were prominently observed along with actin filaments. Under these circumstances, the cell motility analyzed by live cell imaging was found to decrease due to the presence of SiNWs. In addition, the slowed growth rate, as well as the reduced population of S phase cells, suggested that the cell cycle was likely arrested in response to the differentiation process. Furthermore, we measured the mRNA levels of several lineage-specific markers to confirm that the SiNWs actually induced neuron-like differentiation of the hMSCs while hampering their osteogenic differentiation. Taken together, our results implied that SiNWs were capable of inducing active reorganization of cellular behaviors, collectively guiding the fate of hMSCs into the neural lineage even in the absence of any inducing reagent.
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Affiliation(s)
- Hyunju Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, South Korea.
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Li X, Zhao T, Sun L, Aifantis KE, Fan Y, Feng Q, Cui F, Watari F. The applications of conductive nanomaterials in the biomedical field. J Biomed Mater Res A 2015; 104:322-39. [PMID: 26179845 DOI: 10.1002/jbm.a.35537] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 06/23/2015] [Accepted: 06/26/2015] [Indexed: 12/28/2022]
Abstract
As their name suggests, conductive nanomaterials (CNMs) are a type of functional materials, which not only have a high surface area to volume ratio, but also possess excellent conductivity. Thus far, CNMs have been widely used in biomedical applications, such as effectively transferring electrical signals, and providing a large surface area to adsorb proteins and induce cellular functions. Recent works propose further applications of CNMs in biosensors, tissue engineering, neural probes, and drug delivery. This review focuses on common types of CNMs and elaborates on their unique properties, which indicate that such CNMs have a potential to develop into a class of indispensable biomaterials for the diagnosis and therapy of human diseases.
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Affiliation(s)
- Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Tianxiao Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Lianwen Sun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Katerina E Aifantis
- Department of Civil Engineering-Engineering Mechanics, University of Arizona, Tucson, Arizona, 85721
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Qingling Feng
- State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Fuzhai Cui
- State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing, 100084, China
| | - Fumio Watari
- Department of Biomedical Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University, Sapporo, 060-8586, Japan
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24
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Hardy JG, Villancio-Wolter MK, Sukhavasi RC, Mouser DJ, Aguilar D, Geissler SA, Kaplan DL, Schmidt CE. Electrical Stimulation of Human Mesenchymal Stem Cells on Conductive Nanofibers Enhances their Differentiation toward Osteogenic Outcomes. Macromol Rapid Commun 2015; 36:1884-1890. [PMID: 26147073 DOI: 10.1002/marc.201500233] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 05/07/2015] [Indexed: 12/19/2022]
Abstract
Tissue scaffolds allowing the behavior of the cells that reside within them to be controlled are of particular interest for tissue engineering. Herein, the preparation of conductive fiber-based bone tissue scaffolds (nonwoven mats of electrospun polycaprolactone with an interpenetrating network of polypyrrole and polystyrenesulfonate) is described that enable the electrical stimulation of human mesenchymal stem cells to enhance their differentiation toward osteogenic outcomes.
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Affiliation(s)
- John G Hardy
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA.,Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.,Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Maria K Villancio-Wolter
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Rushi C Sukhavasi
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - David J Mouser
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - David Aguilar
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Sydney A Geissler
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA.,Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Christine E Schmidt
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA.,Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
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25
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Weaver CL, Cui XT. Directed Neural Stem Cell Differentiation with a Functionalized Graphene Oxide Nanocomposite. Adv Healthc Mater 2015; 4:1408-16. [PMID: 25943251 DOI: 10.1002/adhm.201500056] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/26/2015] [Indexed: 12/15/2022]
Abstract
Neural stem cell (NSC) transplantation has the potential to restore function to diseased or damaged nervous tissue, but poor control over cell survival, differentiation, and maturation limits therapeutic prospects. Engineered scaffolds that have the ability to drive neural stem cell behavior can address these limitations facing cell transplantation. Conducting polymers, which have the ability to electrically interface with cells, are attractive scaffolding candidates, but they lack the capacity for simple covalent modification, which would enable surface patterning of biomolecules. In this work, the NSC scaffolding performance of a nanocomposite composed of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) and graphene oxide (GO) nanosheets (GO/PEDOT) is investigated. The GO/PEDOT material is nontoxic and improves NSC differentiation toward the neuronal lineage. Biomolecules interferon-γ (IFNγ) and platelet-derived growth factor (PDGF) that selectively promote neuronal or oligodendrocyte lineage differentiation, respectively, are covalently cross-linked to the surface of the GO/PEDOT nanocomposite via carboxylic acid functional groups provided by GO using carbodiimide chemistry. The surfaces support a larger population of neurons when modified with IFNγ and a larger population of oligodendrocytes when modified by PDGF. This work demonstrates the customizability of GO/PEDOT for cell scaffolding applications and underlines its potential for controlling NSC behavior to improve therapeutic potential.
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Affiliation(s)
- Cassandra L. Weaver
- Department of Bioengineering; University of Pittsburgh; Pittsburgh PA 15260 USA
- Center for the Neural Basis of Cognition; University of Pittsburgh; Pittsburgh PA 15260 USA
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA 15260 USA
| | - Xinyan Tracy Cui
- Department of Bioengineering; University of Pittsburgh; Pittsburgh PA 15260 USA
- Center for the Neural Basis of Cognition; University of Pittsburgh; Pittsburgh PA 15260 USA
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA 15260 USA
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Abstract
ABSTRACT Restoration of lost neuronal function after spinal cord injury still remains a considerable challenge for current medicine. Over the last decade, regenerative medicine has recorded rapid and promising advancements in stem cell research, genetic engineering and the progression of new sophisticated biomaterials as well as nanotechnology. This advancement has also been reflected in neural tissue engineering, where, along with the development of a new generation of well-designed biopolymer scaffolds, multifactorial therapeutic strategies are being validated in order to determine the greatest possible repair efficacy of the complex CNS pathophysiology. Much attention is currently focused on the designing of multifunctional polymer scaffolds as systems for targeted drug or gene delivery, electrical stimulation or as substrates creating a special micro-environment, promoting the growth and desired differentiation of various cell lines. In this review, the latest advances in biomaterial technology together with various combinatorial strategies designed to treat spinal cord injury treatment are summarized and discussed.
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Hardy JG, Cornelison RC, Sukhavasi RC, Saballos RJ, Vu P, Kaplan DL, Schmidt CE. Electroactive Tissue Scaffolds with Aligned Pores as Instructive Platforms for Biomimetic Tissue Engineering. Bioengineering (Basel) 2015; 2:15-34. [PMID: 28955011 PMCID: PMC5597125 DOI: 10.3390/bioengineering2010015] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 01/12/2015] [Indexed: 01/13/2023] Open
Abstract
Tissues in the body are hierarchically structured composite materials with tissue-specific chemical and topographical properties. Here we report the preparation of tissue scaffolds with macroscopic pores generated via the dissolution of a sacrificial supramolecular polymer-based crystal template (urea) from a biodegradable polymer-based scaffold (polycaprolactone, PCL). Furthermore, we report a method of aligning the supramolecular polymer-based crystals within the PCL, and that the dissolution of the sacrificial urea yields scaffolds with macroscopic pores that are aligned over long, clinically-relevant distances (i.e., centimeter scale). The pores act as topographical cues to which rat Schwann cells respond by aligning with the long axis of the pores. Generation of an interpenetrating network of polypyrrole (PPy) and poly(styrene sulfonate) (PSS) in the scaffolds yields electroactive tissue scaffolds that allow the electrical stimulation of Schwann cells cultured on the scaffolds which increases the production of nerve growth factor (NGF).
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Affiliation(s)
- John G Hardy
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
- Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-53, P.O. Box 116131, Gainesville, FL 32611, USA.
| | - R Chase Cornelison
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
- Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-53, P.O. Box 116131, Gainesville, FL 32611, USA.
| | - Rushi C Sukhavasi
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Richard J Saballos
- Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-53, P.O. Box 116131, Gainesville, FL 32611, USA.
| | - Philip Vu
- Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-53, P.O. Box 116131, Gainesville, FL 32611, USA.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA.
| | - Christine E Schmidt
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA.
- Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-53, P.O. Box 116131, Gainesville, FL 32611, USA.
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28
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Wang B, Jedlicka S, Cheng X. Maintenance and neuronal cell differentiation of neural stem cells C17.2 correlated to medium availability sets design criteria in microfluidic systems. PLoS One 2014; 9:e109815. [PMID: 25310508 PMCID: PMC4195690 DOI: 10.1371/journal.pone.0109815] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 09/12/2014] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Neural stem cells (NSCs) play an important role in developing potential cell-based therapeutics for neurodegenerative disease. Microfluidics has proven a powerful tool in mechanistic studies of NSC differentiation. However, NSCs are prone to differentiate when the nutrients are limited, which occurs unfavorable by fast medium consumption in miniaturized culture environment. For mechanistic studies of NSCs in microfluidics, it is vital that neuronal cell differentiation is triggered by controlled factors only. Thus, we studied the correlation between available cell medium and spontaneous neuronal cell differentiation of C17.2 NSCs in standard culture medium, and proposed the necessary microfluidic design criteria to prevent undesirable cell phenotype changes. METHODOLOGY/PRINCIPAL FINDINGS A series of microchannels with specific geometric parameters were designed to provide different amount of medium to the cells over time. A medium factor (MF, defined as the volume of stem cell culture medium divided by total number of cells at seeding and number of hours between medium replacement) successfully correlated the amount of medium available to each cell averaged over time to neuronal cell differentiation. MF smaller than 8.3×10(4) µm3/cell⋅hour produced significant neuronal cell differentiation marked by cell morphological change and significantly more cells with positive β-tubulin-III and MAP2 staining than the control. When MF was equal or greater than 8.3×10(4) µm3/cell⋅hour, minimal spontaneous neuronal cell differentiation happened relative to the control. MF had minimal relation with the average neurite length. SIGNIFICANCE MFs can be controlled easily to maintain the stem cell status of C17.2 NSCs or to induce spontaneous neuronal cell differentiation in standard stem cell culture medium. This finding is useful in designing microfluidic culture platforms for controllable NSC maintenance and differentiation. This study also offers insight about consumption rate of serum molecules involved in maintaining the stemness of NSCs.
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Affiliation(s)
- Bu Wang
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania, United States of America
| | - Sabrina Jedlicka
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania, United States of America
- BioEngineering Program, Lehigh University, Bethlehem, Pennsylvania, United States of America
| | - Xuanhong Cheng
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania, United States of America
- BioEngineering Program, Lehigh University, Bethlehem, Pennsylvania, United States of America
- * E-mail:
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He D, Dong W, Tang S, Wei J, Liu Z, Gu X, Li M, Guo H, Niu Y. Tissue engineering scaffolds of mesoporous magnesium silicate and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) composite. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:1415-1424. [PMID: 24595904 DOI: 10.1007/s10856-014-5183-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 02/17/2014] [Indexed: 06/03/2023]
Abstract
Mesoporous magnesium silicate (m-MS) and poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) composite scaffolds were fabricated by solvent-casting and particulate leaching method. The results suggested that the incorporation of m-MS into PCL-PEG-PCL could significantly improve the water adsorption of the m-MS/PCL-PEG-PCL composite (m-MPC) scaffolds. The in vitro degradation behavior of m-MPC scaffolds were determined by testing weight loss of the scaffolds after soaking into phosphate buffered saline (PBS), and the result showed that the degradation of m-MPC scaffolds was obviously enhanced by addition of m-MS into PCL-PEG-PCL after soaking for 10 weeks. Proliferation of MG63 cells on m-MPC was significantly higher than MPC scaffolds at 4 and 7 days. ALP activity on the m-MPC was obviously higher than MPC scaffolds at 7 days, revealing that m-MPC could promote cell differentiation. Histological evaluation showed that the introduction of m-MS into PCL-PEG-PCL enhanced the efficiency of new bone formation when the m-MPC scaffolds implanted into bone defect of rabbits. The results suggested that the inorganic/organic composite of m-MS and PCL-PEG-PCL scaffolds exhibited good biocompatibility, degradability and osteogenesis.
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Affiliation(s)
- Dawei He
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, People's Republic of China
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Trujillo NA, Popat KC. Increased Adipogenic and Decreased Chondrogenic Differentiation of Adipose Derived Stem Cells on Nanowire Surfaces. MATERIALS 2014; 7:2605-2630. [PMID: 28788586 PMCID: PMC5453350 DOI: 10.3390/ma7042605] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 03/18/2014] [Accepted: 03/20/2014] [Indexed: 12/14/2022]
Abstract
Despite many advances in tissue engineering, there are still significant challenges associated with restructuring, repairing, or replacing damaged tissue in the body. Currently, a major obstacle has been trying to develop a scaffold for cartilage tissue engineering that provides the correct mechanical properties to endure the loads associated with articular joints as well as promote cell-scaffold interactions to aid in extracellular matrix deposition. In addition, adipogenic tissue engineering is widely growing due to an increased need for more innovative reconstructive therapies following adipose tissue traumas and cosmetic surgeries. Recently, lipoaspirate tissue has been identified as a viable alternative source for mesenchymal stem cells because it contains a supportive stroma that can easily be isolated. Adipose derived stem cells (ADSCs) can differentiate into a variety of mesodermal lineages including the adipogenic and chondrogenic phenotypes. Biodegradable polymeric scaffolds have been shown to be a promising alternative and stem cells have been widely used to evaluate the compatibility, viability, and bioactivity of these materials. Polycaprolactone is a bioresorbable polymer, which has been widely used for biomedical and tissue engineering applications. The fundamental concept behind successful synthetic tissue-engineered scaffolds is to promote progenitor cell migration, adhesion, proliferation, and induce differentiation, extracellular matrix synthesis, and finally integration with host tissue. In this study, we investigated the adhesion, proliferation, and chondrogenic and adipogenic differentiation of ADSCs on nanowire surfaces. A solvent-free gravimetric template technique was used to fabricate polycaprolactone nanowires surfaces. The results indicated that during the growth period i.e., initial 7 days of culture, the nanowire surfaces (NW) supported adhesion and proliferation of the cells that had elongated morphologies. However, cell on surfaces without nanowires had non-elongated morphologies. Further, immunofluorescence imaging of marker proteins showed that the nanowires surfaces did not appear to support chondrogenic differentiation whereas supported adipogenic differentiation of ADSCs.
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Affiliation(s)
- Nathan A Trujillo
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, USA.
| | - Ketul C Popat
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, USA.
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Chen Y, Wei Y, Liu J, Zhang H. Chemotactic responses of neural stem cells to SDF-1α correlate closely with their differentiation status. J Mol Neurosci 2014; 54:219-33. [PMID: 24659235 DOI: 10.1007/s12031-014-0279-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 02/27/2014] [Indexed: 12/21/2022]
Abstract
Chemotaxis of neural stem/progenitor cells (NSCs) is regulated by a variety of factors, and much effort has been devoted to the delineation of factors that are involved in NSC migration. However, the relationship between NSC chemotactic migration and differentiation remains uncharacterized. In the present study, by comparing the transfilter migration rate, single-cell migration speed, and directional efficiency of NSCs in stromal cell-derived factor-1 alpha (SDF-1α)-induced Boyden chamber and Dunn chamber chemotaxis assays, we demonstrate that NSCs in varying differentiation stages possess different migratory capacity. Furthermore, F-actin microfilament reorganization upon stimulation varies greatly among separate differentiation states. We show that signaling pathways involved in NSC migration, such as PI3K/Akt and mitogen-activated protein kinase (MAPK) (ERK1/2, JNK, and p38 MAPK) pathways, are differentially activated by SDF-1α among each NSC differentiation stages, and the extent to which these pathways participate in cell chemotaxis exhibits a differentiation stage-dependent manner. Taken together, these results suggest that the differentiation of NSCs influences their chemotactic responses to SDF-1α, providing new insight into the optimization of the therapeutic efficacy of NSCs for neural regeneration and nerve repair after injury.
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Affiliation(s)
- Yebing Chen
- Department of Cell Biology, Jiangsu Key Laboratory of Stem Cell Research, Medical College of Soochow University, Ren Ai Road 199, Suzhou Industrial Park, Suzhou, 215123, China
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Some biocompatibility aspects of conducting polymer polypyrrole evaluated with bone marrow-derived stem cells. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.06.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kim SY, Yang EG. Collective behaviors of mammalian cells on amine-coated silicon nanowires. NANOTECHNOLOGY 2013; 24:455704. [PMID: 24140651 DOI: 10.1088/0957-4484/24/45/455704] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Intensive studies with vertical nanowire (NW) arrays have illustrated broad implications for manipulating mammalian cells in vitro, but how cellular responses are influenced by the presence of NWs has not been thoroughly investigated. Here, we address collective cellular behaviors, including surface area of cells, membrane trafficking, focal adhesion distribution and dynamics, and cytoskeletal protein distribution on amine-coated silicon (Si) NWs with different physical properties. The degree of HeLa cell spreading was inversely proportional to the surface area occupied by the NWs, which was not affected by manipulation of membrane trafficking dynamics. In the presence of a diffusive focal complex around the NWs, strong, well organized focal adhesion was hardly visible on the NWs, implying that the cells were interacting weakly with the NW-embedded surface. Furthermore, we found that actin filament formation of the cells on long NWs was not favorable, and this could explain our observation of reduced cell spreading, as well as the decreased number of focal adhesion complexes. Taken together, our results suggest that cells can survive on silicon NWs by adjusting their morphology and adhesion behavior through actively organizing these molecules.
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Affiliation(s)
- So Yeon Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Korea
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Lee JY. Electrically Conducting Polymer-Based Nanofibrous Scaffolds for Tissue Engineering Applications. POLYM REV 2013. [DOI: 10.1080/15583724.2013.806544] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Leszczak V, Smith BS, Popat KC. Hemocompatibility of polymeric nanostructured surfaces. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 24:1529-48. [PMID: 23848447 DOI: 10.1080/09205063.2013.777228] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Tissue integration is an important property when inducing transplant tolerance, however, the hemocompatibility of the biomaterial surface also plays an important role in the ultimate success of the implant. Therefore, in order to induce transplant tolerance, it is critical to understand the interaction of blood components with the material surfaces. In this study, we have investigated the adsorption of key blood serum proteins, in vitro adhesion and activation of platelets and clotting kinetics of whole blood on flat polycaprolactone (PCL) surfaces, nanowire (NW) surfaces and nanofiber (NF) surfaces. Previous studies have shown that polymeric nanostructured surfaces improve cell adhesion, proliferation and viability; however it is unclear how these polymeric nanostructured surfaces interact with the blood and its components. Protein adsorption results indicate that while there were no significant differences in total albumin (ALB) adsorption on PCL, NW and NF surfaces, NW surfaces had higher total fibrinogen (FIB) and immunoglobulin-G (IgG) adsorption compared to NF and PCL surfaces. In contrast, NF surfaces had higher surface FIB and IgG adsorption compared to PCL and NW surfaces. Platelet adhesion and viability studies show more adhesion and clustering of platelets on the NF surfaces as compared to PCL and NW surfaces. Platelet activation studies reveal that NW surfaces have the highest percentage of unactivated platelets, whereas NF surfaces have the highest percentage of fully activated platelets. Whole blood clotting results indicate that NW surfaces maintain an increased amount of free hemoglobin during the clotting process compared to PCL and NF surface, indicating less clotting and slower rate of clotting on their surfaces.
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Affiliation(s)
- Victoria Leszczak
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO, 80523, USA
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Smith BS, Capellato P, Kelley S, Gonzalez-Juarrero M, Popat KC. Reduced in vitro immune response on titania nanotube arrays compared to titanium surface. Biomater Sci 2013; 1:322-332. [DOI: 10.1039/c2bm00079b] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Zhao C, Tan A, Pastorin G, Ho HK. Nanomaterial scaffolds for stem cell proliferation and differentiation in tissue engineering. Biotechnol Adv 2012; 31:654-68. [PMID: 22902273 DOI: 10.1016/j.biotechadv.2012.08.001] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 07/31/2012] [Accepted: 08/01/2012] [Indexed: 02/08/2023]
Abstract
Tissue engineering is a clinically driven field and has emerged as a potential alternative to organ transplantation. The cornerstone of successful tissue engineering rests upon two essential elements: cells and scaffolds. Recently, it was found that stem cells have unique capabilities of self-renewal and multilineage differentiation to serve as a versatile cell source, while nanomaterials have lately emerged as promising candidates in producing scaffolds able to better mimic the nanostructure in natural extracellular matrix and to efficiently replace defective tissues. This article, therefore, reviews the key developments in tissue engineering, where the combination of stem cells and nanomaterial scaffolds has been utilized over the past several years. We consider the high potential, as well as the main issues related to the application of stem cells and nanomaterial scaffolds for a range of tissues including bone, cartilage, nerve, liver, eye etc. Promising in vitro results such as efficient attachment, proliferation and differentiation of stem cells have been compiled in a series of examples involving different nanomaterials. Furthermore, the merits of the marriage of stem cells and nanomaterial scaffolds are also demonstrated in vivo, providing early successes to support subsequent clinical investigations. This progress simultaneously drives mechanistic research into the mechanotransduction process responsible for the observations in order to optimize the process further. Current understanding is chiefly reported to involve the interaction of stem cells and the anchoring nanomaterial scaffolds by activating various signaling pathways. Substrate surface characteristics and scaffold bulk properties are also reported to influence not only short term stem cell adhesion, spreading and proliferation, but also longer term lineage differentiation, functionalization and viability. It is expected that the combination of stem cells and nanomaterials will develop into an important tool in tissue engineering for the innovative treatment of many diseases.
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Affiliation(s)
- Chunyan Zhao
- NanoCore, Engineering Block A, EA, Faculty of Engineering, National University of Singapore, 117576, Singapore
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ZHAO PC, LV YG, ZOU Y, ZHANG XM, CHEN GB, YANG L. Research Advancement on Injured Peripheral Nerve Regeneration by Stem Cells Combined With Electrical Stimulation*. PROG BIOCHEM BIOPHYS 2012. [DOI: 10.3724/sp.j.1206.2011.00467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Belfiore LA, Floren ML, Belfiore CJ. Electric-field-enhanced nutrient consumption in dielectric biomaterials that contain anchorage-dependent cells. Biophys Chem 2011; 161:8-16. [PMID: 22196748 DOI: 10.1016/j.bpc.2011.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 10/19/2011] [Accepted: 10/28/2011] [Indexed: 11/25/2022]
Abstract
This research contribution addresses electric-field stimulation of intra-tissue mass transfer and cell proliferation in viscoelastic biomaterials. The unsteady state reaction-diffusion equation is solved according to the von Kármán-Pohlhausen integral method of boundary layer analysis when nutrient consumption and tissue regeneration occur in response to harmonic electric potential differences across a parallel-plate capacitor in a dielectric-sandwich configuration. The partial differential mass balance with diffusion and electro-kinetic consumption contains the Damköhler (Λ(2)) and Deborah (De) numbers. Zero-field and electric-field-sensitive Damköhler numbers affect nutrient boundary layer growth. Diagonal elements of the 2nd-rank diffusion tensor are enhanced in the presence of weak electric fields, in agreement with the formalism of equilibrium and nonequilibrium thermodynamics. Induced dipole polarization density within viscoelastic biomaterials is calculated via the real and imaginary components of the complex dielectric constant, according to the Debye equation, to quantify electro-kinetic stimulation. Rates of nutrient consumption under zero-field conditions are described by third-order kinetics that include local mass densities of nutrients, oxygen, and attached cells. Thinner nutrient boundary layers are stabilized at shorter dimensionless diffusion times when the zero-field intra-tissue Damköhler number increases above its initial-condition-sensitive critical value [i.e., {Λ(2)(zero-field)}(critical)≥53, see Eq. (23)], such that the biomaterial core is starved of essential ingredients required for successful proliferation. When tissue regeneration occurs above the critical electric-field-sensitive intra-tissue Damköhler number, the electro-kinetic contribution to nutrient consumption cannot be neglected. The critical electric-field-sensitive intra-tissue Damköhler number is proportional to the Deborah number.
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Affiliation(s)
- Laurence A Belfiore
- Department of Chemical & Biological Engineering, Colorado State University, Fort Collins, CO 80523, USA.
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Affiliation(s)
- Marisa E Jaconi
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
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