1
|
Andonegi M, Tubio CR, Pereira N, Costa CM, Lanceros-Mendez S, de la Caba K, Guerrero P. Self-sensing magnetic actuator based on sustainable collagen hybrid nanocomposites. Int J Biol Macromol 2024; 277:134364. [PMID: 39094892 DOI: 10.1016/j.ijbiomac.2024.134364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/22/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Taking into account that natural polymers are renewable and biodegradable, hybrid materials based on natural polymers are required for advanced technological applications with reduced environmental footprint. In this work, sustainable composites have been developed based on collagen as a polymeric matrix and different magnetic fillers, in order to tailor magnetic response. The composites were prepared by solution casting with 30 wt% of magnetite nanoparticles (Fe3O4 NPs), magnetite nanorods (Fe3O4 NRs) or cobalt ferrite nanoparticles (CoFe2O4 NPs). It is shown that the magnetic filler type has no bearing on the morphology, physical-chemical, or thermal characteristics of the composites, whereas the mechanical properties are determined by the magnetic filler, leading to a reduction in tensile strength, with values of 4.95 MPa for Fe3O4 NPs, 9.20 MPa for Fe3O4 NRs and 5.21 MPa for CoFe2O4 NPs containing samples. However, the highest magnetization saturation is obtained for Fe3O4 NPs (44 emu.g-1) and the higher coercive field for CoFe2O4 NPs (2062 Oe). In order to prove functionality of the developed composites, a self-sensing magnetic actuator device has been developed with the composite film with CoFe2O4 NPs, showing high stability over cycling.
Collapse
Affiliation(s)
- Mireia Andonegi
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; Physics Centre of Minho and Porto Universities (CF-UM-UP) and Laboratory of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal.
| | - Carmen R Tubio
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Nelson Pereira
- Physics Centre of Minho and Porto Universities (CF-UM-UP) and Laboratory of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal
| | - Carlos M Costa
- Physics Centre of Minho and Porto Universities (CF-UM-UP) and Laboratory of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-053 Braga, Portugal
| | - Senentxu Lanceros-Mendez
- Physics Centre of Minho and Porto Universities (CF-UM-UP) and Laboratory of Physics for Materials and Emergent Technologies, LapMET, University of Minho, 4710-057 Braga, Portugal; BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Koro de la Caba
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain.
| | - Pedro Guerrero
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain; BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Proteinmat materials SL, Avenida de Tolosa 72, 20018 Donostia-San Sebastián, Spain
| |
Collapse
|
2
|
Yoon S, Fuwad A, Jeong S, Cho H, Jeon TJ, Kim SM. Surface Deformation of Biocompatible Materials: Recent Advances in Biological Applications. Biomimetics (Basel) 2024; 9:395. [PMID: 39056836 PMCID: PMC11274418 DOI: 10.3390/biomimetics9070395] [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: 05/16/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/28/2024] Open
Abstract
The surface topography of substrates is a crucial factor that determines the interaction with biological materials in bioengineering research. Therefore, it is important to appropriately modify the surface topography according to the research purpose. Surface topography can be fabricated in various forms, such as wrinkles, creases, and ridges using surface deformation techniques, which can contribute to the performance enhancement of cell chips, organ chips, and biosensors. This review provides a comprehensive overview of the characteristics of soft, hard, and hybrid substrates used in the bioengineering field and the surface deformation techniques applied to the substrates. Furthermore, this review summarizes the cases of cell-based research and other applications, such as biosensor research, that utilize surface deformation techniques. In cell-based research, various studies have reported optimized cell behavior and differentiation through surface deformation, while, in the biosensor and biofilm fields, performance improvement cases due to surface deformation have been reported. Through these studies, we confirm the contribution of surface deformation techniques to the advancement of the bioengineering field. In the future, it is expected that the application of surface deformation techniques to the real-time interaction analysis between biological materials and dynamically deformable substrates will increase the utilization and importance of these techniques in various fields, including cell research and biosensors.
Collapse
Affiliation(s)
- Sunhee Yoon
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
- Industry-Academia Interactive R&E Center for Bioprocess Innovation (BK21), Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Ahmed Fuwad
- Department of Mechanical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (A.F.); (S.J.)
| | - Seorin Jeong
- Department of Mechanical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (A.F.); (S.J.)
| | - Hyeran Cho
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
| | - Tae-Joon Jeon
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
- Industry-Academia Interactive R&E Center for Bioprocess Innovation (BK21), Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
- Biohybrid Systems Research Center, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Sun Min Kim
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
- Department of Mechanical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (A.F.); (S.J.)
- Biohybrid Systems Research Center, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| |
Collapse
|
3
|
Dresvyanina EN, Tagandurdyyeva NA, Kodolova-Chukhontseva VV, Dobrovol'skaya IP, Kamalov AM, Nashchekina YA, Nashchekin AV, Ivanov AG, Yukina GY, Yudin VE. Structure and Properties of Composite Fibers Based on Chitosan and Single-Walled Carbon Nanotubes for Peripheral Nerve Regeneration. Polymers (Basel) 2023; 15:2860. [PMID: 37447506 DOI: 10.3390/polym15132860] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
This study focused on a potential application of electrically conductive, biocompatible, bioresorbable fibers for tubular conduits aimed at the regeneration of peripheral nerves. The conducting, mechanical, and biological properties of composite fibers based on chitosan and single-walled carbon nanotubes were investigated in this paper. It was shown that introducing 0.5 wt.% of SWCNT into the composite fibers facilitated the formation of a denser fiber structure, resulting in improved strength (σ = 260 MPa) and elastic (E = 14 GPa) characteristics. Additionally, the composite fibers were found to be biocompatible and did not cause significant inflammation or deformation during in vivo studies. A thin layer of connective tissue formed around the fiber.
Collapse
Affiliation(s)
- Elena N Dresvyanina
- Institute of Textile and Fashion, Saint Petersburg State University of Industrial Technologies and Design, B. Morskaya Str., 18, Saint Petersburg 191186, Russia
| | - Nurjemal A Tagandurdyyeva
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint Petersburg Polytechnic University, Polytekhnicheskaya Str., 29, Saint Petersburg 195251, Russia
| | - Vera V Kodolova-Chukhontseva
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint Petersburg Polytechnic University, Polytekhnicheskaya Str., 29, Saint Petersburg 195251, Russia
- Institute of Macromolecular Compounds of Russian Academy of Sciences, VO Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Irina P Dobrovol'skaya
- Institute of Macromolecular Compounds of Russian Academy of Sciences, VO Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Almaz M Kamalov
- Institute of Biomedical Systems and Biotechnology, Peter the Great Saint Petersburg Polytechnic University, Polytekhnicheskaya Str., 29, Saint Petersburg 195251, Russia
| | - Yulia A Nashchekina
- Institute of Cytology Russian Academy of Sciences, Tikhoretsky Ave., 4, Saint Petersburg 194064, Russia
| | - Alexey V Nashchekin
- Ioffe Institute, Polytekhnicheskaya Str., 26, Saint Petersburg 194021, Russia
| | - Alexey G Ivanov
- Institute of Macromolecular Compounds of Russian Academy of Sciences, VO Bolshoy pr., 31, Saint Petersburg 199004, Russia
| | - Galina Yu Yukina
- Pavlov First Saint Petersburg State Medical University, L'va Tolstogo Str. 6-8, Saint Petersburg 197022, Russia
| | - Vladimir E Yudin
- Institute of Macromolecular Compounds of Russian Academy of Sciences, VO Bolshoy pr., 31, Saint Petersburg 199004, Russia
| |
Collapse
|
4
|
Kougkolos G, Golzio M, Laudebat L, Valdez-Nava Z, Flahaut E. Hydrogels with electrically conductive nanomaterials for biomedical applications. J Mater Chem B 2023; 11:2036-2062. [PMID: 36789648 DOI: 10.1039/d2tb02019j] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Hydrogels, soft 3D materials of cross-linked hydrophilic polymer chains with a high water content, have found numerous applications in biomedicine because of their similarity to native tissue, biocompatibility and tuneable properties. In general, hydrogels are poor conductors of electric current, due to the insulating nature of commonly-used hydrophilic polymer chains. A number of biomedical applications require or benefit from an increased electrical conductivity. These include hydrogels used as scaffolds for tissue engineering of electroactive cells, as strain-sensitive sensors and as platforms for controlled drug delivery. The incorporation of conductive nanomaterials in hydrogels results in nanocomposite materials which combine electrical conductivity with the soft nature, flexibility and high water content of hydrogels. Here, we review the state of the art of such materials, describing the theories of current conduction in nanocomposite hydrogels, outlining their limitations and highlighting methods for improving their electrical conductivity.
Collapse
Affiliation(s)
- Georgios Kougkolos
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France. .,LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France.
| | - Muriel Golzio
- IPBS, Université de Toulouse, NRS UMR, UPS, 31077 Toulouse CEDEX 4, France
| | - Lionel Laudebat
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France. .,INU Champollion, Université de Toulouse, 81012 Albi, France
| | - Zarel Valdez-Nava
- LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France.
| | - Emmanuel Flahaut
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, 31062 Toulouse CEDEX 9, France.
| |
Collapse
|
5
|
Jalilinejad N, Rabiee M, Baheiraei N, Ghahremanzadeh R, Salarian R, Rabiee N, Akhavan O, Zarrintaj P, Hejna A, Saeb MR, Zarrabi A, Sharifi E, Yousefiasl S, Zare EN. Electrically conductive carbon-based (bio)-nanomaterials for cardiac tissue engineering. Bioeng Transl Med 2023; 8:e10347. [PMID: 36684103 PMCID: PMC9842069 DOI: 10.1002/btm2.10347] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/22/2022] [Accepted: 04/23/2022] [Indexed: 02/06/2023] Open
Abstract
A proper self-regenerating capability is lacking in human cardiac tissue which along with the alarming rate of deaths associated with cardiovascular disorders makes tissue engineering critical. Novel approaches are now being investigated in order to speedily overcome the challenges in this path. Tissue engineering has been revolutionized by the advent of nanomaterials, and later by the application of carbon-based nanomaterials because of their exceptional variable functionality, conductivity, and mechanical properties. Electrically conductive biomaterials used as cell bearers provide the tissue with an appropriate microenvironment for the specific seeded cells as substrates for the sake of protecting cells in biological media against attacking mechanisms. Nevertheless, their advantages and shortcoming in view of cellular behavior, toxicity, and targeted delivery depend on the tissue in which they are implanted or being used as a scaffold. This review seeks to address, summarize, classify, conceptualize, and discuss the use of carbon-based nanoparticles in cardiac tissue engineering emphasizing their conductivity. We considered electrical conductivity as a key affecting the regeneration of cells. Correspondingly, we reviewed conductive polymers used in tissue engineering and specifically in cardiac repair as key biomaterials with high efficiency. We comprehensively classified and discussed the advantages of using conductive biomaterials in cardiac tissue engineering. An overall review of the open literature on electroactive substrates including carbon-based biomaterials over the last decade was provided, tabulated, and thoroughly discussed. The most commonly used conductive substrates comprising graphene, graphene oxide, carbon nanotubes, and carbon nanofibers in cardiac repair were studied.
Collapse
Affiliation(s)
- Negin Jalilinejad
- Biomaterial Group, Department of Biomedical EngineeringAmirkabir University of TechnologyTehranIran
| | - Mohammad Rabiee
- Biomaterial Group, Department of Biomedical EngineeringAmirkabir University of TechnologyTehranIran
| | - Nafiseh Baheiraei
- Tissue Engineering and Applied Cell Sciences Division, Department of Anatomical Sciences, Faculty of Medical SciencesTarbiat Modares UniversityTehranIran
| | | | - Reza Salarian
- Biomedical Engineering DepartmentMaziar UniversityRoyanMazandaranIran
| | - Navid Rabiee
- Department of PhysicsSharif University of TechnologyTehranIran
- School of EngineeringMacquarie UniversitySydneyNew South WalesAustralia
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH), 77 Cheongam‐ro, Nam‐guPohangGyeongbukSouth Korea
| | - Omid Akhavan
- Department of PhysicsSharif University of TechnologyTehranIran
| | - Payam Zarrintaj
- School of Chemical EngineeringOklahoma State UniversityStillwaterOklahomaUSA
| | - Aleksander Hejna
- Department of Polymer Technology, Faculty of ChemistryGdańsk University of TechnologyGdańskPoland
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Faculty of ChemistryGdańsk University of TechnologyGdańskPoland
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural SciencesIstinye UniversityIstanbulTurkey
| | - Esmaeel Sharifi
- Department of Tissue Engineering and Biomaterials, School of Advanced Medical Sciences and TechnologiesHamadan University of Medical SciencesHamadanIran
| | - Satar Yousefiasl
- School of DentistryHamadan University of Medical SciencesHamadanIran
| | | |
Collapse
|
6
|
Liu X, Jiang Z, Xing D, Yang Y, Li Z, Sun Z. Recent progress in nanocomposites of carbon dioxide fixation derived reproducible biomedical polymers. Front Chem 2022; 10:1035825. [PMID: 36277338 PMCID: PMC9585172 DOI: 10.3389/fchem.2022.1035825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022] Open
Abstract
In recent years, the environmental problems accompanying the extensive application of biomedical polymer materials produced from fossil fuels have attracted more and more attentions. As many biomedical polymer products are disposable, their life cycle is relatively short. Most of the used or overdue biomedical polymer products need to be burned after destruction, which increases the emission of carbon dioxide (CO2). Developing biomedical products based on CO2 fixation derived polymers with reproducible sources, and gradually replacing their unsustainable fossil-based counterparts, will promote the recycling of CO2 in this field and do good to control the greenhouse effect. Unfortunately, most of the existing polymer materials from renewable raw materials have some property shortages, which make them unable to meet the gradually improved quality and property requirements of biomedical products. In order to overcome these shortages, much time and effort has been dedicated to applying nanotechnology in this field. The present paper reviews recent advances in nanocomposites of CO2 fixation derived reproducible polymers for biomedical applications, and several promising strategies for further research directions in this field are highlighted.
Collapse
Affiliation(s)
- Xin Liu
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhiwen Jiang
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Zhiwen Jiang, ; Zhiying Li,
| | - Dejun Xing
- Tumor Hospital of Jilin Province, Changchun, China
| | - Yan Yang
- Tumor Hospital of Jilin Province, Changchun, China
| | - Zhiying Li
- Tumor Hospital of Jilin Province, Changchun, China
- *Correspondence: Zhiwen Jiang, ; Zhiying Li,
| | - Zhiqiang Sun
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| |
Collapse
|
7
|
Assali M, Kittana N, Alhaj-Qasem S, Hajjyahya M, Abu-Rass H, Alshaer W, Al-Buqain R. Noncovalent functionalization of carbon nanotubes as a scaffold for tissue engineering. Sci Rep 2022; 12:12062. [PMID: 35835926 PMCID: PMC9283586 DOI: 10.1038/s41598-022-16247-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
Tissue engineering is one of the hot topics in recent research that needs special requirements. It depends on the development of scaffolds that allow tissue formation with certain characteristics, carbon nanotubes (CNTs)-collagen composite attracted the attention of the researchers with this respect. However, CNTs suffer from low water dispersibility, which hampered their utilization. Therefore, we aim to functionalize CNTs non-covalently with pyrene moiety using an appropriate hydrophilic linker derivatized from polyethylene glycol (PEG) terminated with hydroxyl or carboxyl group to disperse them in water. The functionalization of the CNTs is successfully confirmed by TEM, absorption spectroscopy, TGA, and zeta potential analysis. 3T3 cells-based engineered connective tissues (ECTs) are generated with different concentrations of the functionalized CNTs (f-CNTs). These tissues show a significant enhancement in electrical conductivity at a concentration of 0.025%, however, the cell viability is reduced by about 10 to 20%. All ECTs containing f-CNTs show a significant reduction in tissue fibrosis and matrix porosity relative to the control tissues. Taken together, the developed constructs show great potential for further in vivo studies as engineered tissue.
Collapse
Affiliation(s)
- Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine.
| | - Naim Kittana
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine.
| | - Sahar Alhaj-Qasem
- Department of Pharmacy, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine
| | - Muna Hajjyahya
- Department of Physics, Faculty of Sciences, An-Najah National University, Nablus, Palestine
| | - Hanood Abu-Rass
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
| | - Rula Al-Buqain
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
| |
Collapse
|
8
|
David ME, Ion RM, Grigorescu RM, Iancu L, Holban AM, Iordache F, Nicoara AI, Alexandrescu E, Somoghi R, Teodorescu S, Gheboianu AI. Biocompatible and Antimicrobial Cellulose Acetate-Collagen Films Containing MWCNTs Decorated with TiO 2 Nanoparticles for Potential Biomedical Applications. NANOMATERIALS 2022; 12:nano12020239. [PMID: 35055256 PMCID: PMC8781191 DOI: 10.3390/nano12020239] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/27/2021] [Accepted: 01/10/2022] [Indexed: 12/29/2022]
Abstract
This research focuses on the synthesis of multi-walled carbon nanotubes (MWCNTs) decorated with TiO2 nanoparticles (NPs) and incorporated in cellulose acetate-collagen film in order to obtain a new biomaterial with potential biomedical applications and improved antimicrobial activity. The successful decoration of the MWCNTs with TiO2 NPs was confirmed by several structural and morphological analysis, such as Fourier transformed infrared spectroscopy, Raman spectroscopy, X-ray diffraction and transmission electron microscopy. The obtained nanocomposites were further incorporated into cellulose acetate-collagen films, at different concentrations and absorption kinetics, antimicrobial activity and in vitro biocompatibility of the obtained films was investigated. The antimicrobial tests sustained that the presence of the nanocomposites into the polymeric matrix is an important aspect in increasing and maintaining the antimicrobial activity of the polymeric wound dressings over time. The biocompatibility and cytotoxicity of the obtained films was evaluated using cellular viability/proliferation assay and fluorescent microscopy which revealed the ability of the obtained materials as potential wound dressing biomaterial.
Collapse
Affiliation(s)
- Madalina Elena David
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.M.I.); (R.M.G.); (L.I.); (E.A.); (R.S.)
- Doctoral School of Materials Engineering Department, Valahia University of Targoviste, 130004 Targoviste, Romania
- Correspondence:
| | - Rodica Mariana Ion
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.M.I.); (R.M.G.); (L.I.); (E.A.); (R.S.)
- Doctoral School of Materials Engineering Department, Valahia University of Targoviste, 130004 Targoviste, Romania
| | - Ramona Marina Grigorescu
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.M.I.); (R.M.G.); (L.I.); (E.A.); (R.S.)
| | - Lorena Iancu
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.M.I.); (R.M.G.); (L.I.); (E.A.); (R.S.)
| | | | - Florin Iordache
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Agronomic Science and Veterinary Medicine, 011464 Bucharest, Romania;
| | - Adrian Ionut Nicoara
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 011061 Bucharest, Romania;
| | - Elvira Alexandrescu
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.M.I.); (R.M.G.); (L.I.); (E.A.); (R.S.)
| | - Raluca Somoghi
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, 060021 Bucharest, Romania; (R.M.I.); (R.M.G.); (L.I.); (E.A.); (R.S.)
| | - Sofia Teodorescu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania; (S.T.); (A.I.G.)
| | - Anca Irina Gheboianu
- Institute of Multidisciplinary Research for Science and Technology, Valahia University of Targoviste, 130004 Targoviste, Romania; (S.T.); (A.I.G.)
| |
Collapse
|
9
|
Systems of conductive skin for power transfer in clinical applications. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 51:171-184. [PMID: 34477935 PMCID: PMC8964546 DOI: 10.1007/s00249-021-01568-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/29/2021] [Accepted: 08/12/2021] [Indexed: 11/03/2022]
Abstract
The primary aim of this article is to review the clinical challenges related to the supply of power in implanted left ventricular assist devices (LVADs) by means of transcutaneous drivelines. In effect of that, we present the preventive measures and post-operative protocols that are regularly employed to address the leading problem of driveline infections. Due to the lack of reliable wireless solutions for power transfer in LVADs, the development of new driveline configurations remains at the forefront of different strategies that aim to power LVADs in a less destructive manner. To this end, skin damage and breach formation around transcutaneous LVAD drivelines represent key challenges before improving the current standard of care. For this reason, we assess recent strategies on the surface functionalization of LVAD drivelines, which aim to limit the incidence of driveline infection by directing the responses of the skin tissue. Moreover, we propose a class of power transfer systems that could leverage the ability of skin tissue to effectively heal short diameter wounds. In this direction, we employed a novel method to generate thin conductive wires of controllable surface topography with the potential to minimize skin disruption and eliminate the problem of driveline infections. Our initial results suggest the viability of the small diameter wires for the investigation of new power transfer systems for LVADs. Overall, this review uniquely compiles a diverse number of topics with the aim to instigate new research ventures on the design of power transfer systems for IMDs, and specifically LVADs.
Collapse
|
10
|
Abstract
Flexible bioelectronics have promising applications in electronic skin, wearable devices, biomedical electronics, etc. Hydrogels have unique advantages for bioelectronics due to their tissue-like mechanical properties and excellent biocompatibility. Particularly, conductive and tissue adhesive hydrogels can self-adhere to bio-tissues and have great potential in implantable wearable bioelectronics. This review focuses on the recent progress in tissue adhesive hydrogel bioelectronics, including the mechanism and preparation of tissue adhesive hydrogels, the fabrication strategies of conductive hydrogels, and tissue adhesive hydrogel bioelectronics and applications. Some perspectives on tissue adhesive hydrogel bioelectronics are provided at the end of the review.
Collapse
Affiliation(s)
- Shengnan Li
- Key Laboratory of Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Functional Biomaterials Engineering Technology Research Center, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, School of Materials Science and Engineering, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, China.
| | - Yang Cong
- College of Materials Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315201, China
| | - Jun Fu
- Key Laboratory of Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Functional Biomaterials Engineering Technology Research Center, Guangzhou Key Laboratory of Flexible Electronic Materials and Wearable Devices, School of Materials Science and Engineering, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, China.
| |
Collapse
|
11
|
Wang Z, Liu Y, Wang Z, Huang X, Huang W. Hydrogel‐based composites: Unlimited platforms for biosensors and diagnostics. VIEW 2021. [DOI: 10.1002/viw.20200165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Zeyi Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
| | - Yanlei Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
| | - Zhiwei Wang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering Northwestern Polytechnical University Xi'an China
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing China
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering Northwestern Polytechnical University Xi'an China
| |
Collapse
|
12
|
Wang Z, Cong Y, Fu J. Stretchable and tough conductive hydrogels for flexible pressure and strain sensors. J Mater Chem B 2021; 8:3437-3459. [PMID: 32100788 DOI: 10.1039/c9tb02570g] [Citation(s) in RCA: 217] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Flexible pressure and strain sensors have great potential for applications in wearable and implantable devices, soft robotics and artificial skin. Compared to flexible sensors based on filler/elastomer composites, conductive hydrogels are advantageous due to their biomimetic structures and properties, as well as biocompatibility. Numerous chemical and structural designs provide unlimited opportunities to tune the properties and performance of conductive hydrogels to match various demands for practical applications. Many electronically and ionically conductive hydrogels have been developed to fabricate pressure and strain sensors with different configurations, including resistance type and capacitance type. The sensitivity, reliability and stability of hydrogel sensors are dependent on their network structures and mechanical properties. This review focuses on tough conductive hydrogels for flexible sensors. Representative strategies to prepare stretchable, strong, tough and self-healing hydrogels are briefly reviewed since these strategies are illuminating for the development of tough conductive hydrogels. Then, a general account on various conductive hydrogels is presented and discussed. Recent advances in tough conductive hydrogels with well designed network structures and their sensory performance are discussed in detail. A series of conductive hydrogel sensors and their application in wearable devices are reviewed. Some perspectives on flexible conductive hydrogel sensors and their applications are presented at the end.
Collapse
Affiliation(s)
- Zhenwu Wang
- School of Materials Science and Engineering, Sun Yat-sen University, 135 Xingang Road West, Guangzhou 510275, China.
| | | | | |
Collapse
|
13
|
Casella A, Panitch A, Leach JK. Endogenous Electric Signaling as a Blueprint for Conductive Materials in Tissue Engineering. Bioelectricity 2021; 3:27-41. [PMID: 34476376 PMCID: PMC8370482 DOI: 10.1089/bioe.2020.0027] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Bioelectricity plays an important role in cell behavior and tissue modulation, but is understudied in tissue engineering research. Endogenous electrical signaling arises from the transmembrane potential inherent to all cells and contributes to many cell behaviors, including migration, adhesion, proliferation, and differentiation. Electrical signals are also involved in tissue development and repair. Synthetic and natural conductive materials are under investigation for leveraging endogenous electrical signaling cues in tissue engineering applications due to their ability to direct cell differentiation, aid in maturing electroactive cell types, and promote tissue functionality. In this review, we provide a brief overview of bioelectricity and its impact on cell behavior, report recent literature using conductive materials for tissue engineering, and discuss opportunities within the field to improve experimental design when using conductive substrates.
Collapse
Affiliation(s)
- Alena Casella
- Department of Biomedical Engineering, University of California, Davis, Davis, California, USA
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, Davis, California, USA
- Department of Surgery and UC Davis Health, Sacramento, California, USA
| | - J. Kent Leach
- Department of Biomedical Engineering, University of California, Davis, Davis, California, USA
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, California, USA
| |
Collapse
|
14
|
Xiang L, Cui W. Biomedical application of photo-crosslinked gelatin hydrogels. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2021. [DOI: 10.1186/s42825-020-00043-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
During the past decades, photo-crosslinked gelatin hydrogel (methacrylated gelatin, GelMA) has gained a lot of attention due to its remarkable application in the biomedical field. It has been widely used in cell transplantation, cell culture and drug delivery, based on its crosslinking to form hydrogels with tunable mechanical properties and excellent bio-compatibility when exposed to light irradiation to mimic the micro-environment of native extracellular matrix (ECM). Because of its unique biofunctionality and mechanical tenability, it has also been widely applied in the repair and regeneration of bone, heart, cornea, epidermal tissue, cartilage, vascular, peripheral nerve, oral mucosa, and skeletal muscle et al. The purpose of this review is to summarize the recent application of GelMA in drug delivery and tissue engineering field. Moreover, this review article will briefly introduce both the development of GelMA and the characterization of GelMA. Finally, we discuss the challenges and future development prospects of GelMA as a tissue engineering material and drug or gene delivery carrier, hoping to contribute to accelerating the development of GelMA in the biomedical field.
Graphical abstract
Collapse
|
15
|
Kittana N, Assali M, Zimmermann WH, Liaw N, Santos GL, Rehman A, Lutz S. Modulating the Biomechanical Properties of Engineered Connective Tissues by Chitosan-Coated Multiwall Carbon Nanotubes. Int J Nanomedicine 2021; 16:989-1000. [PMID: 33633447 PMCID: PMC7901244 DOI: 10.2147/ijn.s289107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/20/2021] [Indexed: 01/08/2023] Open
Abstract
Background Under certain conditions, the physiological repair of connective tissues might fail to restore the original structure and function. Optimized engineered connective tissues (ECTs) with biophysical properties adapted to the target tissue could be used as a substitution therapy. This study aimed to investigate the effect of ECT enforcement by a complex of multiwall carbon nanotubes with chitosan (C-MWCNT) to meet in vivo demands. Materials and Methods ECTs were constructed from human foreskin fibroblasts (HFF-1) in collagen type I and enriched with the three different percentages 0.025, 0.05 and 0.1% of C-MWCNT. Characterization of the physical properties was performed by biomechanical studies using unidirectional strain. Results Supplementation with 0.025% C-MWCNT moderately increased the tissue stiffness, reflected by Young’s modulus, compared to tissues without C-MWCNT. Supplementation of ECTs with 0.1% C-MWCNT reduced tissue contraction and increased the elasticity and the extensibility, reflected by the yield point and ultimate strain, respectively. Consequently, the ECTs with 0.1% C-MWCNT showed a higher resilience and toughness as control tissues. Fluorescence tissue imaging demonstrated the longitudinal alignment of all cells independent of the condition. Conclusion Supplementation with C-MWCNT can enhance the biophysical properties of ECTs, which could be advantageous for applications in connective tissue repair.
Collapse
Affiliation(s)
- Naim Kittana
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine
| | - Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine
| | - Wolfram-Hubertus Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Norman Liaw
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Gabriela Leao Santos
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Abdul Rehman
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Susanne Lutz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| |
Collapse
|
16
|
Wang Y, Zhang W, Gong C, Liu B, Li Y, Wang L, Su Z, Wei G. Recent advances in the fabrication, functionalization, and bioapplications of peptide hydrogels. SOFT MATTER 2020; 16:10029-10045. [PMID: 32696801 DOI: 10.1039/d0sm00966k] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Self-assembled peptide-based nanomaterials have exhibited wide application potential in the fields of materials science, nanodevices, biomedicine, tissue engineering, biosensors, energy storage, environmental science, and others. Due to their porous structure, strong mechanical stability, high biocompatibility, and easy functionalization, three-dimensional self-assembled peptide hydrogels revealed promising potential in bio-related applications. To present the advances in this interesting topic, we present a review on the synthesis and functionalization of peptide hydrogels, as well as their applications in drug delivery, antibacterial materials, cell culture, biomineralization, bone tissue engineering, and biosensors. Specifically, we focus on the fabrication methods of peptide hydrogels through physical, chemical, and biological stimulations. In addition, the functional design of peptide hydrogels by incorporation with polymers, DNA, protein, nanoparticles, and carbon materials is introduced and discussed in detail. It is expected that this work will be helpful not only for the design and synthesis of various peptide-based nanostructures and nanomaterials, but also for the structural and functional tailoring of peptide-based nanomaterials to meet specific demands.
Collapse
Affiliation(s)
- Yan Wang
- College of Chemistry and Chemical Engineering, Qingdao University, 266071 Qingdao, P. R. China.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Zimmermann J, Distler T, Boccaccini AR, van Rienen U. Numerical Simulations as Means for Tailoring Electrically Conductive Hydrogels Towards Cartilage Tissue Engineering by Electrical Stimulation. Molecules 2020; 25:E4750. [PMID: 33081205 PMCID: PMC7587583 DOI: 10.3390/molecules25204750] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 12/12/2022] Open
Abstract
Cartilage regeneration is a clinical challenge. In recent years, hydrogels have emerged as implantable scaffolds in cartilage tissue engineering. Similarly, electrical stimulation has been employed to improve matrix synthesis of cartilage cells, and thus to foster engineering and regeneration of cartilage tissue. The combination of hydrogels and electrical stimulation may pave the way for new clinical treatment of cartilage lesions. To find the optimal electric properties of hydrogels, theoretical considerations and corresponding numerical simulations are needed to identify well-suited initial parameters for experimental studies. We present the theoretical analysis of a hydrogel in a frequently used electrical stimulation device for cartilage regeneration and tissue engineering. By means of equivalent circuits, finite element analysis, and uncertainty quantification, we elucidate the influence of the geometric and dielectric properties of cell-seeded hydrogels on the capacitive-coupling electrical field stimulation. Moreover, we discuss the possibility of cellular organisation inside the hydrogel due to forces generated by the external electric field. The introduced methodology is easily reusable by other researchers and allows to directly develop novel electrical stimulation study designs. Thus, this study paves the way for the design of future experimental studies using electrically conductive hydrogels and electrical stimulation for tissue engineering.
Collapse
Affiliation(s)
- Julius Zimmermann
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany;
| | - Thomas Distler
- Institute of Biomaterials, Friedrich Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany; (T.D.); (A.R.B.)
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Friedrich Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany; (T.D.); (A.R.B.)
| | - Ursula van Rienen
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany;
- Department Life, Light & Matter, University of Rostock, 18051 Rostock, Germany
- Department of Ageing of Individuals and Society, Interdisciplinary Faculty, University of Rostock, 18051 Rostock, Germany
| |
Collapse
|
18
|
Kumar P, Saini M, Dehiya BS, Sindhu A, Kumar V, Kumar R, Lamberti L, Pruncu CI, Thakur R. Comprehensive Survey on Nanobiomaterials for Bone Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2019. [PMID: 33066127 PMCID: PMC7601994 DOI: 10.3390/nano10102019] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023]
Abstract
One of the most important ideas ever produced by the application of materials science to the medical field is the notion of biomaterials. The nanostructured biomaterials play a crucial role in the development of new treatment strategies including not only the replacement of tissues and organs, but also repair and regeneration. They are designed to interact with damaged or injured tissues to induce regeneration, or as a forest for the production of laboratory tissues, so they must be micro-environmentally sensitive. The existing materials have many limitations, including impaired cell attachment, proliferation, and toxicity. Nanotechnology may open new avenues to bone tissue engineering by forming new assemblies similar in size and shape to the existing hierarchical bone structure. Organic and inorganic nanobiomaterials are increasingly used for bone tissue engineering applications because they may allow to overcome some of the current restrictions entailed by bone regeneration methods. This review covers the applications of different organic and inorganic nanobiomaterials in the field of hard tissue engineering.
Collapse
Affiliation(s)
- Pawan Kumar
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Meenu Saini
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Brijnandan S. Dehiya
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Anil Sindhu
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;
| | - Vinod Kumar
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar 125001, India; (V.K.); (R.T.)
| | - Ravinder Kumar
- School of Mechanical Engineering, Lovely Professional University, Phagwara 144411, India
| | - Luciano Lamberti
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, 70125 Bari, Italy;
| | - Catalin I. Pruncu
- Department of Design, Manufacturing & Engineering Management, University of Strathclyde, Glasgow G1 1XJ, UK
- Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Rajesh Thakur
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar 125001, India; (V.K.); (R.T.)
| |
Collapse
|
19
|
Wu K, Tao J, Liao Q, Chen S, Wan W. Intracellular microtubules as nano-scaffolding template self-assembles with conductive carbon nanotubes for biomedical device. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:110971. [PMID: 32487389 DOI: 10.1016/j.msec.2020.110971] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/12/2020] [Accepted: 04/14/2020] [Indexed: 11/17/2022]
Abstract
Cellular bilayer and its membrane have been mimicked and for decades, e.g., to synthesize amphiphilic carriers for controlled release. Here we report using nanosized cellular microtubules (MT) as scaffolding template and amphiphilic cytomembrane fragment to self-assemble with hydrophobic carbon nanotubes (MWNT). The hybrid was then cross-linked to form a conductive scaffold. Polyaniline (PANI) was finally added to the nanocomposite to enhance conductivity. Being an electrode, the obtained cell-based conductive gel raise interfacial surface area, increase the conductivity of the material, and enhance the energy density and power density of the material with a relatively low MWNTs concentration (less than 4.8 wt%). The cell-based supercapacitor reaches a specific capacitance of 209.2 F/g and thus the fabricated cell-based electrode achieves a conductivity of 38Scm-1. The cellular electric device exhibits great potential for future implantable bio-device and bio-electronic interface applications.
Collapse
Affiliation(s)
- Kai Wu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Jun Tao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Qi Liao
- Department of Orthopaedic Surgery, The Third Affiliated Hospital of Nanchang University, Nanchang 330008, China
| | - Shixuan Chen
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, USA..
| | - Wenbing Wan
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| |
Collapse
|
20
|
Zueva OS, Gubaidullin AT, Makarova AO, Bogdanova LR, Zakharova LY, Zuev YF. Structural features of composite protein-polysaccharide hydrogel in the presence of a carbon nanomaterial. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2802-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
21
|
Mi Y, Li P, Liu Q, Xu J, Yang Q, Tang J. Multi-Parametric Study of the Viability of in Vitro Skin Cancer Cells Exposed to Nanosecond Pulsed Electric Fields Combined With Multi-Walled Carbon Nanotubes. Technol Cancer Res Treat 2020; 18:1533033819876918. [PMID: 31551008 PMCID: PMC6763947 DOI: 10.1177/1533033819876918] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Multi-walled carbon nanotubes with excellent electrical properties and high aspect ratios can reduce the high field strength required to kill cancer cells in vitro with nanosecond pulsed electric fields. For the first time, this article systematically and comprehensively evaluates the effects of various parameters of nanosecond pulsed electric fields combined with multi-walled carbon nanotubes on cell viability. The effects of field strength, E (2-10 kV/cm); pulse width, τ (100-500 ns); and pulse number, N (5-260) on the viability of A375 human skin cancer cells in the presence of multi-walled carbon nanotubes are studied using the Cell Counting Kit 8 assay. Based on a logistic model, the relationship between cell viability and various parameters is obtained using 1-dimensional nonlinear fitting. The results show a sigmoid-type variation in cell viability with field strength, pulse width, or pulse number. Multivariate scaling analysis shows that the relationship between cell viability and the pulse energy density σE2τN can be described as a sigmoid type. The introduction of multi-walled carbon nanotubes does not affect the above rules but significantly enhances the killing effect of nanosecond pulsed electric fields, which could effectively improve the electrical safety of nanosecond pulsed electric fields for the treatment of tumors.
Collapse
Affiliation(s)
- Yan Mi
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, China
| | - Pan Li
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, China
| | - Quan Liu
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, China
| | - Jin Xu
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, China
| | - Qiyu Yang
- First Affiliated Hospital, Chongqing Medical Science University, Chongqing, China
| | - Junying Tang
- First Affiliated Hospital, Chongqing Medical Science University, Chongqing, China
| |
Collapse
|
22
|
Recent Advances in Carbon Nanotubes for Nervous Tissue Regeneration. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/6861205] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Regenerative medicine has taken advantage of several nanomaterials for reparation of diseased or damaged tissues in the nervous system involved in memory, cognition, and movement. Electrical, thermal, mechanical, and biocompatibility aspects of carbon-based nanomaterials (nanotubes, graphene, fullerenes, and their derivatives) make them suitable candidates to drive nerve tissue repair and stimulation. This review article focuses on key recent advances on the use of carbon nanotube- (CNT-) based technologies on nerve tissue engineering, outlining how neurons interact with CNT interfaces for promoting neuronal differentiation, growth and network reconstruction. CNTs still represent strong candidates for use in therapies of neurodegenerative pathologies and spinal cord injuries.
Collapse
|
23
|
Simulation of Carbon Nanotube-Based Enhancement of Cellular Electroporation under Nanosecond Pulsed Electric Fields. BIOMED RESEARCH INTERNATIONAL 2020; 2019:9654583. [PMID: 31930142 PMCID: PMC6942754 DOI: 10.1155/2019/9654583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 11/30/2022]
Abstract
Carbon nanotubes (CNTs) with large aspect ratios and excellent electrical properties can enhance the killing effect of nanosecond pulsed electric fields (nsPEFs) on tumor cells, which can improve the electrical safety of nsPEF during tumor treatment. To study the mechanism of the CNT-enhanced killing effect of a nsPEF on tumor cells, a spherical, single-cell, five-layer dielectric model containing randomly distributed CNTs was established using COMSOL and MATLAB, and then, the effects of the addition of CNTs on the electric field and the electroporation effect on the inner and outer membranes were analyzed. The results showed that CNTs can enhance the local electric field strength due to a lightning rod effect, and the closer the CNT tip was to the cell, the greater the electric field strength was around the cell. This increase in the local electric field strength near the cells enhanced the electroporation effects, including pore density, pore area, and pore flux. The simulation results presented in this paper provide theoretical guidance for subsequent development of nsPEF combined with CNTs for use in both cell and tissue experiments.
Collapse
|
24
|
Shin M, Song KH, Burrell JC, Cullen DK, Burdick JA. Injectable and Conductive Granular Hydrogels for 3D Printing and Electroactive Tissue Support. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901229. [PMID: 31637164 PMCID: PMC6794627 DOI: 10.1002/advs.201901229] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/27/2019] [Indexed: 05/17/2023]
Abstract
Conductive hydrogels are attractive to mimic electrophysiological environments of biological tissues and toward therapeutic applications. Injectable and conductive hydrogels are of particular interest for applications in 3D printing or for direct injection into tissues; however, current approaches to add conductivity to hydrogels are insufficient, leading to poor gelation, brittle properties, or insufficient conductivity. Here, an approach is developed using the jamming of microgels to form injectable granular hydrogels, where i) hydrogel microparticles (i.e., microgels) are formed with water-in-oil emulsions on microfluidics, ii) microgels are modified via an in situ metal reduction process, and iii) the microgels are jammed into a solid, permitting easy extrusion from a syringe. Due to the presence of metal nanoparticles at the jammed interface with high surface area in this unique design, the granular hydrogels have greater conductivity than non-particle (i.e., bulk) hydrogels treated similarly or granular hydrogels either without metal nanoparticles or containing encapsulated nanoparticles. The conductivity of the granular hydrogels is easily modified through mixing conductive and non-conductive microgels during fabrication and they can be applied to the 3D printing of lattices and to bridge muscle defects. The versatility of this conductive granular hydrogel will permit numerous applications where conductive materials are needed.
Collapse
Affiliation(s)
- Mikyung Shin
- Department of BioengineeringUniversity of PennsylvaniaPhiladelphiaPA19104USA
| | - Kwang Hoon Song
- Department of BioengineeringUniversity of PennsylvaniaPhiladelphiaPA19104USA
| | - Justin C. Burrell
- Department of BioengineeringUniversity of PennsylvaniaPhiladelphiaPA19104USA
- Department of NeurosurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA19104USA
- Center for NeurotraumaNeurodegeneration and RestorationCorporal Michael J. Crescenz Veterans Affairs Medical CenterPhiladelphiaPA19104USA
| | - D. Kacy Cullen
- Department of BioengineeringUniversity of PennsylvaniaPhiladelphiaPA19104USA
- Department of NeurosurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA19104USA
- Center for NeurotraumaNeurodegeneration and RestorationCorporal Michael J. Crescenz Veterans Affairs Medical CenterPhiladelphiaPA19104USA
| | - Jason A. Burdick
- Department of BioengineeringUniversity of PennsylvaniaPhiladelphiaPA19104USA
| |
Collapse
|
25
|
Zargar SM, Mehdikhani M, Rafienia M. Reduced graphene oxide–reinforced gellan gum thermoresponsive hydrogels as a myocardial tissue engineering scaffold. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519876080] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Myocardial infarction is one of the most prevalent diseases around the world. Cardiac tissue engineering is a new approach to repair and revive the structure and functionality of cardiac damaged tissue. In this study, gellan gum/reduced graphene oxide composite hydrogels were fabricated, characterized, and evaluated. The hydrogels were prepared using the solvent casting method and characterized via scanning electron microscopy and Fourier-transform infrared spectroscopy. Compressive mechanical analysis, injectability as well as electrical conductivity test were run. Furthermore, water swelling and degradation analyses were conducted. MTT assay was performed using rat myoblasts (H9C2) to determine the cytotoxicity of our samples. Results showed that reduced graphene oxide fillers dispersed acceptably and enhanced the compressive modulus and electrical conductivity of gellan gum hydrogels. However, in this regard, compressive strength and ductility were not significantly boosted with reduced graphene oxide addition. The water-swelling ratio (%) rised in the presence of reduced graphene oxide, whereas the degradation rate was not significantly affected by them. Meanwhile, synthesized hydrogels showed suitable injectability. MTT assay results revealed that gellan gum hydrogels containing 1% and 2% reduced graphene oxide were not cytotoxic. According to the findings, gellan gum/2% reduced graphene oxide composite hydrogel can be a promising candidate for repairing and healing infarcted myocardial tissue.
Collapse
Affiliation(s)
- Seyed Mohammad Zargar
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | - Mehdi Mehdikhani
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
| | - Mohammad Rafienia
- Biosensor Research Center (BRC), Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
26
|
Saberi A, Jabbari F, Zarrintaj P, Saeb MR, Mozafari M. Electrically Conductive Materials: Opportunities and Challenges in Tissue Engineering. Biomolecules 2019; 9:E448. [PMID: 31487913 PMCID: PMC6770812 DOI: 10.3390/biom9090448] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/26/2019] [Accepted: 08/28/2019] [Indexed: 01/09/2023] Open
Abstract
Tissue engineering endeavors to regenerate tissues and organs through appropriate cellular and molecular interactions at biological interfaces. To this aim, bio-mimicking scaffolds have been designed and practiced to regenerate and repair dysfunctional tissues by modifying cellular activity. Cellular activity and intracellular signaling are performances given to a tissue as a result of the function of elaborated electrically conductive materials. In some cases, conductive materials have exhibited antibacterial properties; moreover, such materials can be utilized for on-demand drug release. Various types of materials ranging from polymers to ceramics and metals have been utilized as parts of conductive tissue engineering scaffolds, having conductivity assortments from a range of semi-conductive to conductive. The cellular and molecular activity can also be affected by the microstructure; therefore, the fabrication methods should be evaluated along with an appropriate selection of conductive materials. This review aims to address the research progress toward the use of electrically conductive materials for the modulation of cellular response at the material-tissue interface for tissue engineering applications.
Collapse
Affiliation(s)
- Azadeh Saberi
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box: 31787-316 Tehran, Iran.
| | - Farzaneh Jabbari
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box: 31787-316 Tehran, Iran.
| | - Payam Zarrintaj
- Polymer Engineering Department, Faculty of Engineering, Urmia University, P.O. Box: 5756151818-165 Urmia, Iran.
| | - Mohammad Reza Saeb
- Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box: 16765-654 Tehran, Iran.
| | - Masoud Mozafari
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), P.O Box: 14665-354 Tehran, Iran.
| |
Collapse
|
27
|
Zemmyo D, Miyata S. Evaluation of Lipid Accumulation Using Electrical Impedance Measurement under Three-Dimensional Culture Condition. MICROMACHINES 2019; 10:mi10070455. [PMID: 31284585 PMCID: PMC6680657 DOI: 10.3390/mi10070455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 12/25/2022]
Abstract
The degeneration of adipocyte has been reported to cause obesity, metabolic syndrome, and other diseases. To treat these diseases, an effective in vitro evaluation and drug-screening system for adipocyte culture is required. The objective of this study is to establish an in vitro three-dimensional cell culture system to enable the monitoring of lipid accumulation by measuring electrical impedance, and to determine the relationship between the impedance and lipid accumulation of adipocytes cultured three dimensionally. Consequently, pre-adipocytes, 3T3-L1 cells, were cultured and differentiated to the adipocytes in our culture system, and the electrical impedance of the three-dimensional adipocyte culture at a high frequency was related to the lipid accumulation of the adipocytes. In conclusion, the lipid accumulation of adipocytes could be evaluated in real time by monitoring the electrical impedance during in vitro culture.
Collapse
Affiliation(s)
- Daiki Zemmyo
- Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan
| | - Shogo Miyata
- Department of Mechanical Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama 223-8522, Japan.
| |
Collapse
|
28
|
CNT Incorporated Polyacrilonitrile/Polypyrrole Nanofibers as Keratinocytes Scaffold. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2019. [DOI: 10.4028/www.scientific.net/jbbbe.41.69] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polypyrrole (PPy) is an attractive scaffold material for tissue engineering with its non-toxic and electrically conductive properties. There has not been enough information about PPy usage in skin tissue engineering. The aim of this study is to investigate biocompatibility of polyacrilonitrile (PAN)/PPy nanofibrous scaffold for human keratinocytes. PAN/PPy bicomponent nanofibers were prepared by electrospinning, in various PPy concentrations and with carbon nanotube (CNT) incorporation. The average diameter of electrospun nanofibers decreased with increasing PPy concentration. Further, agglomerated CNTs caused beads and disordered parts on the surface of nanofibers. Biocompatibility of these PAN/PPy and PAN/PPy/CNT scaffolds were analyzed in vitro. Both scaffolds provided adhesion and proliferation of keratinocytes. Nanofiber diameter did not significantly influence the morphology of cells. However, with increasing number of cells, cells stayed among nanofibers and this affected their shape and size. In this study, we demonstrated that PAN/PPy and PAN/PPy/CNT scaffolds enabled the growth of keratinocytes, showing their biocompatibility.
Collapse
|
29
|
Shi Y, Hélary C, Coradin T. Exploring the cell-protein-mineral interfaces: Interplay of silica (nano)rods@collagen biocomposites with human dermal fibroblasts. Mater Today Bio 2019; 1:100004. [PMID: 32159139 PMCID: PMC7061546 DOI: 10.1016/j.mtbio.2019.100004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/27/2019] [Accepted: 03/30/2019] [Indexed: 01/23/2023] Open
Abstract
The benefits of associating biological polymers with nanomaterials within functional bionanocomposite hydrogels have already been evidenced both in vitro and in vivo. However their development as effective biomaterials requires to understand and tune the interactions at the cell-protein-mineral ternary interface. With this purpose, we have studied here the impact of silica (nano)rods on the structural and rheological properties of type I collagen hydrogels and on the behavior of human dermal fibroblasts. High collagen concentrations were beneficial to the material mechanical properties, whereas silica rods could exert a positive effect on these at both low and high content. Electron microscopy evidenced strong bio-mineral interactions, emphasizing the true composite nature of these materials. In contrast, adhesion and proliferation studies showed that, despite these interactions, fibroblasts can discriminate between the protein and the inorganic phases and penetrate the collagen network to limit direct contact with silica. Such a divergence between physicochemical characteristics and biological responses has major implications for the prediction of the in vivo fate of nanocomposite biomaterials.
Collapse
Affiliation(s)
| | | | - Thibaud Coradin
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, 75005 Paris, France
| |
Collapse
|
30
|
Vigués N, Pujol-Vila F, Marquez-Maqueda A, Muñoz-Berbel X, Mas J. Electro-addressable conductive alginate hydrogel for bacterial trapping and general toxicity determination. Anal Chim Acta 2018; 1036:115-120. [DOI: 10.1016/j.aca.2018.06.062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/15/2018] [Accepted: 06/22/2018] [Indexed: 01/01/2023]
|
31
|
Mihajlovic M, Mihajlovic M, Dankers PYW, Masereeuw R, Sijbesma RP. Carbon Nanotube Reinforced Supramolecular Hydrogels for Bioapplications. Macromol Biosci 2018; 19:e1800173. [PMID: 30085403 DOI: 10.1002/mabi.201800173] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/09/2018] [Indexed: 01/08/2023]
Abstract
Nanocomposite hydrogels based on carbon nanotubes (CNTs) are known to possess remarkable stiffness, electrical, and thermal conductivity. However, they often make use of CNTs as fillers in covalently cross-linked hydrogel networks or involve direct cross-linking between CNTs and polymer chains, limiting processability properties. Herein, nanocomposite hydrogels are developed, in which CNTs are fillers in a physically cross-linked hydrogel. Supramolecular nanocomposites are prepared at various CNT concentrations, ranging from 0.5 to 6 wt%. Incorporation of 3 wt% of CNTs leads to an increase of the material's toughness by over 80%, and it enhances electrical conductivity by 358%, compared to CNT-free hydrogel. Meanwhile, the nanocomposite hydrogels maintain thixotropy and processability, typical of the parent hydrogel. The study also demonstrates that these materials display remarkable cytocompatibility and support cell growth and proliferation, while preserving their functional activities. These supramolecular nanocomposite hydrogels are therefore promising candidates for biomedical applications, in which both toughness and electrical conductivity are important parameters.
Collapse
Affiliation(s)
- Marko Mihajlovic
- Laboratory of Macromolecular and Organic Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513,, 5600, MB, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513,, 5600, MB, Eindhoven, The Netherlands
| | - Milos Mihajlovic
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584, CG, Utrecht, The Netherlands
| | - Patricia Y W Dankers
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513,, 5600, MB, Eindhoven, The Netherlands.,Department of Biomedical Engineering, Laboratory of Chemical Biology, Eindhoven University of Technology, P.O. Box 513,, 5600, MB, Eindhoven, The Netherlands
| | - Rosalinde Masereeuw
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584, CG, Utrecht, The Netherlands
| | - Rint P Sijbesma
- Laboratory of Macromolecular and Organic Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513,, 5600, MB, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513,, 5600, MB, Eindhoven, The Netherlands
| |
Collapse
|
32
|
Hussain I, Sayed SM, Liu S, Oderinde O, Kang M, Yao F, Fu G. Enhancing the mechanical properties and self-healing efficiency of hydroxyethyl cellulose-based conductive hydrogels via supramolecular interactions. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.05.025] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
33
|
Nezakati T, Seifalian A, Tan A, Seifalian AM. Conductive Polymers: Opportunities and Challenges in Biomedical Applications. Chem Rev 2018; 118:6766-6843. [DOI: 10.1021/acs.chemrev.6b00275] [Citation(s) in RCA: 354] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Toktam Nezakati
- Google Inc.., Mountain View, California 94043, United States
- Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London NW3 2QG, United Kingdom
| | - Amelia Seifalian
- UCL Medical School, University College London, London WC1E 6BT, United Kingdom
| | - Aaron Tan
- UCL Medical School, University College London, London WC1E 6BT, United Kingdom
| | - Alexander M. Seifalian
- NanoRegMed Ltd. (Nanotechnology and Regenerative Medicine Commercialization Centre), The London Innovation BioScience Centre, London NW1 0NH, United Kingdom
| |
Collapse
|
34
|
Biomaterials in Tendon and Skeletal Muscle Tissue Engineering: Current Trends and Challenges. MATERIALS 2018; 11:ma11071116. [PMID: 29966303 PMCID: PMC6073924 DOI: 10.3390/ma11071116] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/20/2018] [Accepted: 06/25/2018] [Indexed: 12/17/2022]
Abstract
Tissue engineering is a promising approach to repair tendon and muscle when natural healing fails. Biohybrid constructs obtained after cells’ seeding and culture in dedicated scaffolds have indeed been considered as relevant tools for mimicking native tissue, leading to a better integration in vivo. They can also be employed to perform advanced in vitro studies to model the cell differentiation or regeneration processes. In this review, we report and analyze the different solutions proposed in literature, for the reconstruction of tendon, muscle, and the myotendinous junction. They classically rely on the three pillars of tissue engineering, i.e., cells, biomaterials and environment (both chemical and physical stimuli). We have chosen to present biomimetic or bioinspired strategies based on understanding of the native tissue structure/functions/properties of the tissue of interest. For each tissue, we sorted the relevant publications according to an increasing degree of complexity in the materials’ shape or manufacture. We present their biological and mechanical performances, observed in vitro and in vivo when available. Although there is no consensus for a gold standard technique to reconstruct these musculo-skeletal tissues, the reader can find different ways to progress in the field and to understand the recent history in the choice of materials, from collagen to polymer-based matrices.
Collapse
|
35
|
Vashist A, Kaushik A, Vashist A, Sagar V, Ghosal A, Gupta YK, Ahmad S, Nair M. Advances in Carbon Nanotubes-Hydrogel Hybrids in Nanomedicine for Therapeutics. Adv Healthc Mater 2018; 7:e1701213. [PMID: 29388356 PMCID: PMC6248342 DOI: 10.1002/adhm.201701213] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/21/2017] [Indexed: 12/21/2022]
Abstract
In spite of significant advancement in hydrogel technology, low mechanical strength and lack of electrical conductivity have limited their next-level biomedical applications for skeletal muscles, cardiac and neural cells. Host-guest chemistry based hybrid nanocomposites systems have gained attention as they completely overcome these pitfalls and generate bioscaffolds with tunable electrical and mechanical characteristics. In recent years, carbon nanotube (CNT)-based hybrid hydrogels have emerged as innovative candidates with diverse applications in regenerative medicines, tissue engineering, drug delivery devices, implantable devices, biosensing, and biorobotics. This article is an attempt to recapitulate the advancement in synthesis and characterization of hybrid hydrogels and provide deep insights toward their functioning and success as biomedical devices. The improved comparative performance and biocompatibility of CNT-hydrogels hybrids systems developed for targeted biomedical applications are addressed here. Recent updates toward diverse applications and limitations of CNT hybrid hydrogels is the strength of the review. This will provide a holistic approach toward understanding of CNT-based hydrogels and their applications in nanotheranostics.
Collapse
Affiliation(s)
- Arti Vashist
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Ajeet Kaushik
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Atul Vashist
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India, 110029
| | - Vidya Sagar
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Anujit Ghosal
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India, 110067
| | - Y. K. Gupta
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, India, 110029
| | - Sharif Ahmad
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, India, 110025
| | - Madhavan Nair
- Center for Personalized Nanomedicine, Department of Immunology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| |
Collapse
|
36
|
Sheikholeslam M, Wheeler SD, Duke KG, Marsden M, Pritzker M, Chen P. Peptide and peptide-carbon nanotube hydrogels as scaffolds for tissue & 3D tumor engineering. Acta Biomater 2018; 69:107-119. [PMID: 29248638 DOI: 10.1016/j.actbio.2017.12.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 11/28/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022]
Abstract
The use of hybrid self-assembling peptide (EFK8)-carbon nanotube (SWNT) hydrogels for tissue engineering and in vitro 3D cancer spheroid formation is reported. These hybrid hydrogels are shown to enhance the attachment, spreading, proliferation and movement of NIH-3T3 cells relative to that observed using EFK8-only hydrogels. After five days, ∼30% more cells are counted when the hydrogel contains SWNTs. Also, 3D encapsulation of these cells when injected in hydrogels does not adversely affect their behavior. Compressive modulus measurements and microscopic examination suggest that SWNTs have this beneficial effect by providing sites for cell anchorage, spreading and movement rather than by increasing hydrogel stiffness. This shows that the cells have a particular interaction with SWNTs not shared with EFK8 nanofibers despite a similar morphology. The effect of EFK8 and EFK8-SWNT hydrogels on A549 lung cancer cell behavior is also investigated. Increasing stiffness of EFK8-only hydrogels from about 44 Pa to 104 Pa promotes a change in A549 morphology from spheroidal to a stretched one similar to migratory phenotype. EFK8-SWNT hydrogels also promote a stretched morphology, but at lower stiffness. These results are discussed in terms of the roles of both microenvironment stiffness and cell-scaffold adhesion in cancer cell invasion. Overall, this study demonstrates that applications of peptide hydrogels in vitro can be expanded by incorporating SWNTs into their structure which further provides insight into cell-biomaterial interactions. STATEMENT OF SIGNIFICANCE For the first time we used hybrid self-assembling peptide-carbon nanotube hybrid hydrogels (that we have recently introduced briefly in the "Carbon" journal in 2014) for tissue engineering and 3D tumor engineering. We showed the potential of these hybrid hydrogels to enhance the efficiency of the peptide hydrogels for tissue engineering application in terms of cell behavior (cell attachment, spreading and migration). This opens up new rooms for the peptide hydrogels and can expand their applications. Also our system (peptide and peptide-CNT hydrogels) was used for cancer cell spheroid formation showing the effect of both tumor microenvironment stiffness and cell-scaffold adhesion on cancer cell invasion. This was only possible based on the presence of CNTs in the hydrogel while the stiffness kept constant. Finally it should be noted that these hybrid hydrogels expand applications of peptide hydrogels through enhancing their capabilities and/or adding new properties to them.
Collapse
|
37
|
Yang W, Shao B, Liu T, Zhang Y, Huang R, Chen F, Fu Q. Robust and Mechanically and Electrically Self-Healing Hydrogel for Efficient Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8245-8257. [PMID: 29381055 DOI: 10.1021/acsami.7b18700] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Autonomously self-healing hydrogels have received considerable attentions due to their capacity for repairing themselves spontaneously after suffering damage, which can provide a better stability and a longer life span. In this work, a robust and mechanically and electrically self-healing hydrogel with an efficient electromagnetic interference (EMI) shielding performance was successfully fabricated via the incorporation of multiwalled carbon nanotubes (MWCNTs) into the hydrophobically associated polyacrylamide (PAM) hydrogels by using cellulose nanofiber (CNF) as the dispersant. It was been found that CNF could not only assist the homogeneous dispersion of MWCNTs but also effectively enhance the mechanical property of the resultant hydrogels. As a result, the optimal tensile strength (≈0.24 MPa), electrical conductivity (≈0.85 S m-1), and EMI shielding effectiveness (≈28.5 dB) were achieved for the PAM/CNF/MWCNT composite hydrogels with 1 wt % MWCNTs and 0.3 wt % CNF, which showed 458, 844, and 90% increase over (≈0.043 MPa, ≈0.09 S m-1, and ≈15 dB, respectively) the PAM hydrogel. More encouragingly, these composite hydrogels could rapidly restore their electrical conductivity and EMI shielding effectiveness after mechanical damage at room temperature without any external stimulus. With outstanding mechanical and self-healing properties, the prepared composite hydrogels were similar to human skin, but beyond human skin owing to their additional satisfactory electrical and EMI shielding performances. They may offer promising and broad prospects in the field of simulate skin and protection of precision electronics.
Collapse
Affiliation(s)
- Weixing Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Bowen Shao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Tianyu Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Yiyin Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Rui Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Feng Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| |
Collapse
|
38
|
Sawyer SW, Dong P, Venn S, Ramos A, Quinn D, Horton JA, Soman P. Conductive gelatin methacrylate-poly(aniline) hydrogel for cell encapsulation. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa91f9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
39
|
Correia Pinto V, Costa-Almeida R, Rodrigues I, Guardão L, Soares R, Miranda Guedes R. Exploring the in vitro and in vivo compatibility of PLA, PLA/GNP and PLA/CNT-COOH biodegradable nanocomposites: Prospects for tendon and ligament applications. J Biomed Mater Res A 2017; 105:2182-2190. [PMID: 28370990 DOI: 10.1002/jbm.a.36075] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 03/02/2017] [Accepted: 03/23/2017] [Indexed: 11/08/2022]
Abstract
Anterior cruciate ligament (ACL) reconstructive surgeries are the most frequent orthopedic procedures in the knee. Currently, existing strategies fail in completely restoring tissue functionality and have a high failure rate associated, presenting a compelling argument towards the development of novel materials envisioning ACL reinforcement. Tendons and ligaments, in general, have a strong demand in terms of biomechanical features of developed constructs. We have previously developed polylactic acid (PLA)-based biodegradable films reinforced either with graphene nanoplatelets (PLA/GNP) or with carboxyl-functionalized carbon nanotubes (PLA/CNT-COOH). In the present study, we comparatively assessed the biological performance of PLA, PLA/GNP, and PLA/CNT-COOH by seeding human dermal fibroblasts (HFF-1) and studying cell viability and proliferation. In vivo tests were also performed by subcutaneous implantation in 6-week-old C57Bl/6 mice. Results showed that all formulations studied herein did not elicit cytotoxic responses in seeded HFF-1, supporting cell proliferation up to 3 days in culture. Moreover, animal studies indicated no physiological signs of severe inflammatory response after 1 and 2 weeks after implantation. Taken together, our results present a preliminary assessment on the compatibility of PLA reinforced with GNP and CNT-COOH nanofillers, highlighting the potential use of these carbon-based nanofillers for the fabrication of reinforced synthetic polymer-based structures for ACL reinforcement. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2182-2190, 2017.
Collapse
Affiliation(s)
- Viviana Correia Pinto
- INEGI, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 400, Porto, 4200-465, Portugal
| | - Raquel Costa-Almeida
- Departamento de Bioquímica, Alameda Professor Hernâni Monteiro, Faculdade de Medicina, Universidade do Porto, Porto, 4200-319, Portugal
| | - Ilda Rodrigues
- Departamento de Bioquímica, Alameda Professor Hernâni Monteiro, Faculdade de Medicina, Universidade do Porto, Porto, 4200-319, Portugal
| | - Luísa Guardão
- Departamento de Bioquímica, Alameda Professor Hernâni Monteiro, Faculdade de Medicina, Universidade do Porto, Porto, 4200-319, Portugal.,Animal House Department, Faculdade de Medicina, Universidade do Porto, Alameda Professor Hernâni Monteiro, Porto, 4200-319, Portugal
| | - Raquel Soares
- Departamento de Bioquímica, Alameda Professor Hernâni Monteiro, Faculdade de Medicina, Universidade do Porto, Porto, 4200-319, Portugal.,i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-135, Portugal
| | - Rui Miranda Guedes
- INEGI, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 400, Porto, 4200-465, Portugal.,DeMEC, Departamento de Engenharia Mecânica, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 400, Porto, 4200-465, Portugal
| |
Collapse
|
40
|
Yu H, Zhao H, Huang C, Du Y. Mechanically and Electrically Enhanced CNT–Collagen Hydrogels As Potential Scaffolds for Engineered Cardiac Constructs. ACS Biomater Sci Eng 2017; 3:3017-3021. [DOI: 10.1021/acsbiomaterials.6b00620] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Chenyu Huang
- Department
of Dermatology, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | | |
Collapse
|
41
|
Sun H, Zhou J, Huang Z, Qu L, Lin N, Liang C, Dai R, Tang L, Tian F. Carbon nanotube-incorporated collagen hydrogels improve cell alignment and the performance of cardiac constructs. Int J Nanomedicine 2017; 12:3109-3120. [PMID: 28450785 PMCID: PMC5399986 DOI: 10.2147/ijn.s128030] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Carbon nanotubes (CNTs) provide an essential 2-D microenvironment for cardiomyocyte growth and function. However, it remains to be elucidated whether CNT nanostructures can promote cell–cell integrity and facilitate the formation of functional tissues in 3-D hydrogels. Here, single-walled CNTs were incorporated into collagen hydrogels to fabricate (CNT/Col) hydrogels, which improved mechanical and electrical properties. The incorporation of CNTs (up to 1 wt%) exhibited no toxicity to cardiomyocytes and enhanced cell adhesion and elongation. Through the use of immunohistochemical staining, transmission electron microscopy, and intracellular calcium-transient measurement, the incorporation of CNTs was found to improve cell alignment and assembly remarkably, which led to the formation of engineered cardiac tissues with stronger contraction potential. Importantly, cardiac tissues based on CNT/Col hydrogels were noted to have better functionality. Collectively, the incorporation of CNTs into the Col hydrogels improved cell alignment and the performance of cardiac constructs. Our study suggests that CNT/Col hydrogels offer a promising tissue scaffold for cardiac constructs, and might serve as injectable biomaterials to deliver cell or drug molecules for cardiac regeneration following myocardial infarction in the near future.
Collapse
Affiliation(s)
- Hongyu Sun
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Jing Zhou
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Zhu Huang
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Linlin Qu
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Ning Lin
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Chengxiao Liang
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Ruiwu Dai
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Lijun Tang
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| | - Fuzhou Tian
- General Surgery Center, Chengdu Military General Hospital, Chengdu, China
| |
Collapse
|
42
|
Ahadian S, Davenport Huyer L, Estili M, Yee B, Smith N, Xu Z, Sun Y, Radisic M. Moldable elastomeric polyester-carbon nanotube scaffolds for cardiac tissue engineering. Acta Biomater 2017; 52:81-91. [PMID: 27940161 DOI: 10.1016/j.actbio.2016.12.009] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/11/2016] [Accepted: 12/06/2016] [Indexed: 12/16/2022]
Abstract
Polymer biomaterials are used to construct scaffolds in tissue engineering applications to assist in mechanical support, organization, and maturation of tissues. Given the flexibility, electrical conductance, and contractility of native cardiac tissues, it is desirable that polymeric scaffolds for cardiac tissue regeneration exhibit elasticity and high electrical conductivity. Herein, we developed a facile approach to introduce carbon nanotubes (CNTs) into poly(octamethylene maleate (anhydride) 1,2,4-butanetricarboxylate) (124 polymer), and developed an elastomeric scaffold for cardiac tissue engineering that provides electrical conductivity and structural integrity to 124 polymer. 124 polymer-CNT materials were developed by first dispersing CNTs in poly(ethylene glycol) dimethyl ether porogen and mixing with 124 prepolymer for molding into shapes and crosslinking under ultraviolet light. 124 polymers with 0.5% and 0.1% CNT content (wt) exhibited improved conductivity against pristine 124 polymer. With increasing the CNT content, surface moduli of hybrid polymers were increased, while their bulk moduli were decreased. Furthermore, increased swelling of hybrid 124 polymer-CNT materials was observed, suggesting their improved structural support in an aqueous environment. Finally, functional characterization of engineered cardiac tissues using the 124 polymer-CNT scaffolds demonstrated improved excitation threshold in materials with 0.5% CNT content (3.6±0.8V/cm) compared to materials with 0% (5.1±0.8V/cm) and 0.1% (5.0±0.7V/cm), suggesting greater tissue maturity. 124 polymer-CNT materials build on the advantages of 124 polymer elastomer to give a versatile biomaterial for cardiac tissue engineering applications. STATEMENT OF SIGNIFICANCE Achieving a high elasticity and a high conductivity in a single cardiac tissue engineering material remains a challenge. We report the use of CNTs in making electrically conductive and mechanically strong polymeric scaffolds in cardiac tissue regeneration. CNTs were incorporated in elastomeric polymers in a facile and reproducible approach. Polymer-CNT materials were able to construct complicated scaffold structures by injecting the prepolymer into a mold and crosslinking the prepolymer under ultraviolet light. CNTs enhanced electrical conductivity and structural support of elastomeric polymers. Hybrid polymeric scaffolds containing 0.5wt% CNTs increased the maturation of cardiac tissues fabricated on them compared to pure polymeric scaffolds. The cardiac tissues on hybrid polymer-CNT scaffolds showed earlier beating than those on pure polymer scaffolds. In the future, fabricated polymer-CNT scaffolds could also be used to fabricate other electro-active tissues, such neural and skeletal muscle tissues. In the future, fabricated polymer-CNT scaffolds could also be used to fabricate other electro-active tissues, such as neural and skeletal muscle tissues.
Collapse
Affiliation(s)
- Samad Ahadian
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Locke Davenport Huyer
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Mehdi Estili
- Ceramics Processing Group, Research Center for Functional Materials, National Institute for Materials Science (NIMS), Tsukuba, Japan
| | - Bess Yee
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Nathaniel Smith
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Zhensong Xu
- Advanced Micro and Nanosystems Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Yu Sun
- Advanced Micro and Nanosystems Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Milica Radisic
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada; Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada.
| |
Collapse
|
43
|
Electroconductive natural polymer-based hydrogels. Biomaterials 2016; 111:40-54. [DOI: 10.1016/j.biomaterials.2016.09.020] [Citation(s) in RCA: 237] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 12/27/2022]
|
44
|
Armentano I, Fortunati E, Gigli M, Luzi F, Trotta R, Bicchi I, Soccio M, Lotti N, Munari A, Martino S, Torre L, Kenny JM. Effect of SWCNT introduction in random copolymers on material properties and fibroblast long term culture stability. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.02.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
45
|
Hosseinzadeh S, Rezayat SM, Vashegani-Farahani E, Mahmoudifard M, Zamanlui S, Soleimani M. Nanofibrous hydrogel with stable electrical conductivity for biological applications. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.05.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
46
|
Koppes A, Keating K, McGregor A, Koppes R, Kearns K, Ziemba A, McKay C, Zuidema J, Rivet C, Gilbert R, Thompson D. Robust neurite extension following exogenous electrical stimulation within single walled carbon nanotube-composite hydrogels. Acta Biomater 2016; 39:34-43. [PMID: 27167609 DOI: 10.1016/j.actbio.2016.05.014] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 05/06/2016] [Accepted: 05/06/2016] [Indexed: 12/15/2022]
Abstract
UNLABELLED The use of exogenous electrical stimulation to promote nerve regeneration has achieved only limited success. Conditions impeding optimized outgrowth may arise from inadequate stimulus presentation due to differences in injury geometry or signal attenuation. Implantation of an electrically-conductive biomaterial may mitigate this attenuation and provide a more reproducible signal. In this study, a conductive nanofiller (single-walled carbon nanotubes [SWCNT]) was selected as one possible material to manipulate the bulk electrical properties of a collagen type I-10% Matrigel™ composite hydrogel. Neurite outgrowth within hydrogels (SWCNT or nanofiller-free controls) was characterized to determine if: (1) nanofillers influence neurite extension and (2) electrical stimulation of the nanofiller composite hydrogel enhances neurite outgrowth. Increased SWCNT loading (10-100-μg/mL) resulted in greater bulk conductivity (up to 1.7-fold) with no significant changes to elastic modulus. Neurite outgrowth increased 3.3-fold in 20-μg/mL SWCNT loaded biomaterials relative to the nanofiller-free control. Electrical stimulation promoted greater outgrowth (2.9-fold) within SWCNT-free control. The concurrent presentation of electrical stimulation and SWCNT-loaded biomaterials resulted in a 7.0-fold increase in outgrowth relative to the unstimulated, nanofiller-free controls. Local glia residing within the DRG likely contribute, in part, to the observed increases in outgrowth; but it is unknown which specific nanofiller properties influence neurite extension. Characterization of neuronal behavior in model systems, such as those described here, will aid the rational development of biomaterials as well as the appropriate delivery of electrical stimuli to support nerve repair. STATEMENT OF SIGNIFICANCE Novel biomedical devices delivering electrical stimulation are being developed to mitigate symptoms of Parkinson's, treat drug-resistant depression, control movement or enhance verve regeneration. Carbon nanotubes and other novel materials are being explored for novel nano-neuro devices based on their unique properties. Neuronal growth on carbon nanotubes has been studied in 2D since the early 2000s demonstrating increased outgrowth, synapse formation and network activity. In this work, single-walled carbon nanotubes were selected as one possible electrically-conductive material, dispersed within a 3D hydrogel containing primary neurons; extending previous 2D work to 3D to evaluate outgrowth within nanomaterial composites with electrical stimulation. This is the first study to our knowledge that stimulates neurons in 3D composite nanomaterial-laden hydrogels. Examination of electrically conductive biomaterials may serve to promote regrowth following injury or in long term stimulation.
Collapse
|
47
|
Baei P, Jalili-Firoozinezhad S, Rajabi-Zeleti S, Tafazzoli-Shadpour M, Baharvand H, Aghdami N. Electrically conductive gold nanoparticle-chitosan thermosensitive hydrogels for cardiac tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:131-41. [DOI: 10.1016/j.msec.2016.02.056] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 02/03/2016] [Accepted: 02/19/2016] [Indexed: 02/01/2023]
|
48
|
Oprych KM, Whitby RLD, Mikhalovsky SV, Tomlins P, Adu J. Repairing Peripheral Nerves: Is there a Role for Carbon Nanotubes? Adv Healthc Mater 2016; 5:1253-71. [PMID: 27027923 DOI: 10.1002/adhm.201500864] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/10/2016] [Indexed: 12/16/2022]
Abstract
Peripheral nerve injury continues to be a major global health problem that can result in debilitating neurological deficits and neuropathic pain. Current state-of-the-art treatment involves reforming the damaged nerve pathway using a nerve autograft. Engineered nerve repair conduits can provide an alternative to the nerve autograft avoiding the inevitable tissue damage caused at the graft donor site. Commercially available nerve repair conduits are currently only considered suitable for repairing small nerve lesions; the design and performance of engineered conduits requires significant improvements to enable their use for repairing larger nerve defects. Carbon nanotubes (CNTs) are an emerging novel material for biomedical applications currently being developed for a range of therapeutic technologies including scaffolds for engineering and interfacing with neurological tissues. CNTs possess a unique set of physicochemical properties that could be useful within nerve repair conduits. This progress report aims to evaluate and consolidate the current literature pertinent to CNTs as a biomaterial for supporting peripheral nerve regeneration. The report is presented in the context of the state-of-the-art in nerve repair conduit design; outlining how CNTs may enhance the performance of next generation peripheral nerve repair conduits.
Collapse
Affiliation(s)
- Karen M. Oprych
- Department of Brain, Repair and Rehabilitation; Institute of Neurology; University College London; Queen Square London WC1N 3BG UK
| | | | - Sergey V. Mikhalovsky
- School of Engineering; Nazarbayev University; Astana 010000 Kazakhstan
- School of Pharmacy and Biomolecular Sciences; University of Brighton; Brighton BN2 4GJ UK
| | | | - Jimi Adu
- School of Pharmacy and Biomolecular Science; University of Brighton; Brighton BN2 4GJ UK
| |
Collapse
|
49
|
Cui Z, Zhou M, Greensmith PJ, Wang W, Hoyland JA, Kinloch IA, Freemont T, Saunders BR. A study of conductive hydrogel composites of pH-responsive microgels and carbon nanotubes. SOFT MATTER 2016; 12:4142-4153. [PMID: 27067636 DOI: 10.1039/c6sm00223d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Conductive gel composites are attracting considerable attention because of their interesting electrical and mechanical properties. Here, we report conductive gel composites constructed using only colloidal particles as building blocks. The composites were prepared from mixed dispersions of vinyl-functionalised pH-responsive microgel particles (MGs) and multi-walled carbon nanotubes (CNTs). MGs are crosslinked pH-responsive polymer colloid particles that swell when the pH approaches the pKa of the particles. Two MG systems were used which contained ethyl acrylate (EA) or methyl acrylate (MA) and around 30 mol% of methacrylic acid (MAA). The MA-based MG is a new pH-responsive system. The mixed MG/CNT dispersions formed thixotropic physical gels. Those gels were transformed into covalent interlinked electrically conducting doubly crosslinked microgel/CNT composites (DX MG/CNT) by free-radical reaction. The MGs provided the dual roles of dispersant for the CNTs and macro-crosslinker for the composite. TEM data showed evidence for strong attraction between the MG and the CNTs which facilitated CNT dispersion. An SEM study confirmed CNT dispersion throughout the composites. The mechanical properties of the composites were studied using dynamic rheology and uniaxial compression measurements. Surprisingly, both the ductility and the modulus of the gel composites increased with increasing CNT concentration used for their preparation. Human adipose-derived mesenchymal stem cells (AD-MSCs) exposed to DX MG/CNT maintained over 99% viability with metabolic activity retained over 7 days, which indicated non-cytotoxicity. The results of this study suggest that our approach could be used to prepare other DX MG/CNT gel composites and that these materials may lead to future injectable gels for advanced soft-tissue repair.
Collapse
Affiliation(s)
- Zhengxing Cui
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Adewunmi AA, Ismail S, Sultan AS. Carbon Nanotubes (CNTs) Nanocomposite Hydrogels Developed for Various Applications: A Critical Review. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0379-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|