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Zubarev AY. Dynamic susceptibility of soft ferrogels. Effect of interparticle interaction. SOFT MATTER 2023; 19:7988-7994. [PMID: 37819192 DOI: 10.1039/d3sm00996c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
We present the results of theoretical analysis of the dynamic susceptibility of soft elastic-viscous ferrogels with embedded single-domain ferromagnetic particles chaotically distributed in the host medium. The magnetic anisotropy of the particle is supposed to be strong. The effect of magnetic interparticle interaction is a focus of our attention. A differential equation for the statistically averaged (measured) magnetic moment of the particle is derived. Our analysis shows that in the case of a weak applied field, the interparticle interaction increases the composite magnetization and decreases the rate of its remagnetization.
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Affiliation(s)
- A Yu Zubarev
- Ural Federal University, 620083, Ekaterinburg, Russia.
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2
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Alginate Hydrogels Reinforced by Dehydration under Stress-Application to a Soft Magnetic Actuator. Gels 2023; 9:gels9010039. [PMID: 36661805 PMCID: PMC9858607 DOI: 10.3390/gels9010039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023] Open
Abstract
We investigated the effect of partial dehydration under mechanical stress in the properties of alginate hydrogels. For this aim, we characterized the mechanical properties of the hydrogels under tensile and shear stress, as well as their swelling behavior, macroscopic appearance, and microscopic structure. We found that the processes of dehydration under a mechanical stress were irreversible with fully rehydration being impossible. What is more, these processes gave rise to an enhancement of the mechanical robustness of the hydrogels beyond the effect due to the increase in polymer concentration caused by dehydration. Finally, we analyzed the applicability of these results to alginate-based magnetic hydrogel grippers that bended in response to an applied magnetic field. Remarkably, our study demonstrated that the dehydration of the magnetic hydrogels under compression facilitated their bending response.
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3
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Elfimova EA, Iskakova LY, Solovyova AY, Zubarev AY. Theory of static magnetization of magnetopolymer composites: The second virial approximation. Phys Rev E 2021; 104:054616. [PMID: 34942844 DOI: 10.1103/physreve.104.054616] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 11/10/2021] [Indexed: 11/07/2022]
Abstract
This paper deals with a theoretical study of the static magnetization of a composite, consisting of nanodisperse single-domain ferromagnetic particles immobilized in a nonmagnetic medium. This situation is typical for magnetopolymer systems-smart materials, which found applications in high industrial and biomedical applications. It is supposed that the composite was polymerized without an external magnetic field; after curing the particles retain the spatial distribution and orientation of their axes of easy magnetization that they had before the host medium polymerization. Our results demonstrate that, in contrast to ferrofluids with a liquid host medium, a magnetic interparticle interaction provokes a decrease of the macroscopic magnetization of the system.
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Affiliation(s)
- Ekaterina A Elfimova
- Ural Mathematical Center, Department of Theoretical and Mathematical Physics, Ural Federal University, Ekaterinburg 620000, Russia
| | - Larisa Yu Iskakova
- Ural Mathematical Center, Department of Theoretical and Mathematical Physics, Ural Federal University, Ekaterinburg 620000, Russia
| | - Anna Yu Solovyova
- Ural Mathematical Center, Department of Theoretical and Mathematical Physics, Ural Federal University, Ekaterinburg 620000, Russia
| | - Andrey Yu Zubarev
- Department of Theoretical and Mathematical Physics, Ural Federal University, Ekaterinburg 620000, Russia and M. N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia
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4
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Lodi MB, Curreli N, Zappia S, Pilia L, Casula MF, Fiorito S, Catapano I, Desogus F, Pellegrino T, Kriegel I, Crocco L, Mazzarella G, Fanti A. Influence of Magnetic Scaffold Loading Patterns on their Hyperthermic Potential against Bone Tumors. IEEE Trans Biomed Eng 2021; 69:2029-2040. [PMID: 34882544 DOI: 10.1109/tbme.2021.3134208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Magnetic scaffolds have been investigated as promising tools for the interstitial hyperthermia treatment of bone cancers, to control local recurrence by enhancing radio- and chemotherapy effectiveness. The potential of magnetic scaffolds motivates the development of production strategies enabling tunability of the resulting magnetic properties. Within this framework, deposition and drop-casting of magnetic nanoparticles on suitable scaffolds offer advantages such as ease of production and high loading, although these approaches are often associated with a non-uniform final spatial distribution of nanoparticles in the biomaterial. The implications and the influences of nanoparticle distribution on the final therapeutic application have not yet been investigated thoroughly. In this work, poly-caprolactone scaffolds are magnetized by loading them with synthetic magnetic nanoparticles through a drop-casting deposition and tuned to obtain different distributions of magnetic nanoparticles in the biomaterial. The physicochemical properties of the magnetic scaffolds are analyzed. The microstructure and the morphological alterations due to the reworked drop-casting process are evaluated and correlated to static magnetic measurements. THz tomography is used as an innovative investigation technique to derive the spatial distribution of nanoparticles. Finally, multiphysics simulations are used to investigate the influence on the loading patterns on the interstitial bone tumor hyperthermia treatment.
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Martin-Piedra MA, Gironés-Camarasa B, España-López A, Fernández-Valadés Gámez R, Blanco-Elices C, Garzón I, Alaminos M, Fernández-Valadés R. Usefulness of a Nanostructured Fibrin-Agarose Bone Substitute in a Model of Severely Critical Mandible Bone Defect. Polymers (Basel) 2021; 13:3939. [PMID: 34833238 PMCID: PMC8618832 DOI: 10.3390/polym13223939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 11/17/2022] Open
Abstract
Critical defects of the mandibular bone are very difficult to manage with currently available materials and technology. In the present work, we generated acellular and cellular substitutes for human bone by tissue engineering using nanostructured fibrin-agarose biomaterials, with and without adipose-tissue-derived mesenchymal stem cells differentiated to the osteogenic lineage using inductive media. Then, these substitutes were evaluated in an immunodeficient animal model of severely critical mandibular bone damage in order to assess the potential of the bioartificial tissues to enable bone regeneration. The results showed that the use of a cellular bone substitute was associated with a morpho-functional improvement of maxillofacial structures as compared to negative controls. Analysis of the defect site showed that none of the study groups fully succeeded in generating dense bone tissue at the regeneration area. However, the use of a cellular substitute was able to improve the density of the regenerated tissue (as determined via CT radiodensity) and form isolated islands of bone and cartilage. Histologically, the regenerated bone islands were comparable to control bone for alizarin red and versican staining, and superior to control bone for toluidine blue and osteocalcin in animals grafted with the cellular substitute. Although these results are preliminary, cellular fibrin-agarose bone substitutes show preliminary signs of usefulness in this animal model of severely critical mandibular bone defect.
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Affiliation(s)
- Miguel-Angel Martin-Piedra
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, E18016 Granada, Spain; (M.-A.M.-P.); (C.B.-E.); (I.G.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, E18012 Granada, Spain
| | - Belén Gironés-Camarasa
- Division of Pediatric Surgery, University Hospital Virgen de las Nieves, E18014 Granada, Spain;
- Doctoral Program in Biomedicine, University of Granada, E18071 Granada, Spain
| | - Antonio España-López
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University Hospital Virgen de las Nieves, E18014 Granada, Spain;
| | | | - Cristina Blanco-Elices
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, E18016 Granada, Spain; (M.-A.M.-P.); (C.B.-E.); (I.G.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, E18012 Granada, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, E18016 Granada, Spain; (M.-A.M.-P.); (C.B.-E.); (I.G.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, E18012 Granada, Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, Faculty of Medicine, University of Granada, E18016 Granada, Spain; (M.-A.M.-P.); (C.B.-E.); (I.G.)
- Instituto de Investigación Biosanitaria ibs.GRANADA, E18012 Granada, Spain
| | - Ricardo Fernández-Valadés
- Instituto de Investigación Biosanitaria ibs.GRANADA, E18012 Granada, Spain
- Division of Pediatric Surgery, University Hospital Virgen de las Nieves, E18014 Granada, Spain;
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University Hospital Virgen de las Nieves, E18014 Granada, Spain;
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Dinislamova OA, Bugayova AV, Shklyar TF, Safronov AP, Blyakhman FA. Echogenic Advantages of Ferrogels Filled with Magnetic Sub-Microparticles. Bioengineering (Basel) 2021; 8:bioengineering8100140. [PMID: 34677213 PMCID: PMC8533603 DOI: 10.3390/bioengineering8100140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/30/2021] [Accepted: 10/04/2021] [Indexed: 11/16/2022] Open
Abstract
Ultrasonic imaging of ferrogels (FGs) filled with magnetic nanoparticles does not reflect the inner structure of FGs due to the small size of particles. To determine whether larger particle size would improve the acoustic properties of FGs, biocompatible hydrogels filled with 100–400 nm iron oxide magnetic sub-microparticles with weight fraction up to 23.3% were synthesized and studied. Polymeric networks of synthesized FGs were comprised of chemically cross-linked polyacrylamide with interpenetrating physical network of natural polysaccharide—Guar or Xanthan. Cylindrical samples approximately 10 mm in height and 13 mm in diameter were immersed in a water bath and examined using medical ultrasound (8.5 MHz). The acoustic properties of FGs were characterized by the intensity of reflected echo signal. It was found that the echogenicity of sub-microparticles provides visualization not only of the outer geometry of the gel sample but of its inner structure as well. In particular, the echogenicity of FGs interior depended on the concentration of magnetic particles in the FGs network. The ultrasound monitoring of the shape, dimensions, and inner structure of FGs in the applied external magnetic field is demonstrated. It is especially valuable for the application of FGs in tissue engineering and regenerative medicine.
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Affiliation(s)
- Olga A. Dinislamova
- Department of Biomedical Physics and Engineering, Ural State Medical University, 620028 Ekaterinburg, Russia; (O.A.D.); (A.V.B.); (T.F.S.)
| | - Antonina V. Bugayova
- Department of Biomedical Physics and Engineering, Ural State Medical University, 620028 Ekaterinburg, Russia; (O.A.D.); (A.V.B.); (T.F.S.)
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia;
| | - Tatyana F. Shklyar
- Department of Biomedical Physics and Engineering, Ural State Medical University, 620028 Ekaterinburg, Russia; (O.A.D.); (A.V.B.); (T.F.S.)
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia;
| | - Alexander P. Safronov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia;
- Institute of Electrophysics UB RAS, 620016 Ekaterinburg, Russia
| | - Felix A. Blyakhman
- Department of Biomedical Physics and Engineering, Ural State Medical University, 620028 Ekaterinburg, Russia; (O.A.D.); (A.V.B.); (T.F.S.)
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia;
- Correspondence:
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Safronov AP, Zubarev AY, Mikhnevich EA, Rusinova EV. A kinetic model for magnetostriction of a ferrogel with physical networking. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200315. [PMID: 34275357 DOI: 10.1098/rsta.2020.0315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/30/2020] [Indexed: 06/13/2023]
Abstract
Kinetics of magnetostriction of ferrogel with physical networking based on natural polysaccharide guar gum with embedded strontium hexaferrite magnetic particles were studied in the uniform magnetic field 420 mT. An ellipsoidal sample was elongated by 37% along the applied field and contracted by 15% in the transverse direction, while its volume was kept constant. The characteristic time of magnetostriction was 440 s. Dynamic mechanical analysis in an oscillatory mode showed that the deformation of ferrogel is mostly elastic rather than viscous. Its storage modulus was almost constant in a frequency range of 0.1-100 Hz and by at least an order of magnitude larger than the loss modulus. Meanwhile, a developed theoretical model based on the elasto-viscous behaviour of the ferrogel failed to estimate correctly the experimental value of its magnetostriction. Calculated values of the elongation of ferrogel in the field were several orders of magnitude lower than those observed in the experiment for the ferrogel with physical networking. Consistency between the experiment and the theory was achieved using the alternative consideration based on the deformation of a liquid droplet of ferrofluid. The applicability of such an approach was discussed concerning structural relaxation properties of the ferrogel with physical networking. This article is part of the theme issue 'Transport phenomena in complex systems (part 1)'.
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Affiliation(s)
- A P Safronov
- Institute of Natural Sciences and Mathematics, Ural Federal University, Lenin Ave, 51, Ekaterinburg, 620083, Russia
- Institute of Electrophysics UB RAS, Ekaterinburg, 620016, Russia
| | - A Yu Zubarev
- Institute of Natural Sciences and Mathematics, Ural Federal University, Lenin Ave, 51, Ekaterinburg, 620083, Russia
- M.N. Mikheev Institute of Metal Physics UB RAS, Ekaterinburg, Russia
| | - E A Mikhnevich
- Institute of Natural Sciences and Mathematics, Ural Federal University, Lenin Ave, 51, Ekaterinburg, 620083, Russia
| | - E V Rusinova
- Institute of Natural Sciences and Mathematics, Ural Federal University, Lenin Ave, 51, Ekaterinburg, 620083, Russia
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Suarez-Fernandez WR, Duran JDG, Lopez-Lopez MT. The role of thermal diffusion, particle clusters, hydrodynamic and magnetic forces on the flow behaviour of magneto-polymer composites. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200302. [PMID: 34275360 DOI: 10.1098/rsta.2020.0302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/21/2021] [Indexed: 06/13/2023]
Abstract
In this paper, we study the shear-induced flow of magneto-polymer composites, consisting of dispersions of magnetic particles in solutions of polymers, as a competition between the colloidal forces amid particles and their bulk transport induced by the hydrodynamic forces. For this aim, we analyse the role of different experimental parameters. Firstly, by using only solutions of a well-known anionic polymer (sodium alginate), we provoke a moderate hindering of particle movement, but keeping the liquid-like state of the samples. On the contrary, a gel-like behaviour is conferred to the samples when a cationic polymer (chitosan) is additionally added, which further reduces the particle movement. We analyse the effect of an applied magnetic field, which is opposed to particle transport by hydrodynamic forces, by inducing magnetic attraction between the particles. We perform the analysis under both stationary and oscillatory shear. We show that by using dimensionless numbers the differences between samples and experimental conditions are emphasized. In all cases, as expected, the transport of particles driven by bulk hydrodynamic forces dominates at high values of the shear rate. This article is part of the theme issue 'Transport phenomena in complex systems (part 1)'.
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Affiliation(s)
- William R Suarez-Fernandez
- Department of Applied Physics, University of Granada, 18071, Granada, Spain
- Faculty of Engineering Sciences and Industries, Universidad UTE, 170129, Quito, Ecuador
| | - Juan D G Duran
- Department of Applied Physics, University of Granada, 18071, Granada, Spain
- Instituto de Investigación Biosanitaria IBS.Granada, 18012, Granada, Spain
| | - Modesto T Lopez-Lopez
- Department of Applied Physics, University of Granada, 18071, Granada, Spain
- Instituto de Investigación Biosanitaria IBS.Granada, 18012, Granada, Spain
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9
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Campos F, Bonhome-Espinosa AB, Carmona R, Durán JDG, Kuzhir P, Alaminos M, López-López MT, Rodriguez IA, Carriel V. In vivo time-course biocompatibility assessment of biomagnetic nanoparticles-based biomaterials for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111476. [PMID: 33255055 DOI: 10.1016/j.msec.2020.111476] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 01/17/2023]
Abstract
Novel artificial tissues with potential usefulness in local-based therapies have been generated by tissue engineering using magnetic-responsive nanoparticles (MNPs). In this study, we performed a comprehensive in vivo characterization of bioengineered magnetic fibrin-agarose tissue-like biomaterials. First, in vitro analyses were performed and the cytocompatibility of MNPs was demonstrated. Then, bioartificial tissues were generated and subcutaneously implanted in Wistar rats and their biodistribution, biocompatibility and functionality were analysed at the morphological, histological, haematological and biochemical levels as compared to injected MNPs. Magnetic Resonance Image (MRI), histology and magnetometry confirmed the presence of MNPs restricted to the grafting area after 12 weeks. Histologically, we found a local initial inflammatory response that decreased with time. Structural, ultrastructural, haematological and biochemical analyses of vital organs showed absence of damage or failure. This study demonstrated that the novel magnetic tissue-like biomaterials with improved biomechanical properties fulfil the biosafety and biocompatibility requirements for future clinical use and support the use of these biomaterials as an alternative delivery route for magnetic nanoparticles.
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Affiliation(s)
- Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ana B Bonhome-Espinosa
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
| | - Ramón Carmona
- Department of Cell Biology, Faculty of Sciences, University of Granada, Campus Fuentenueva s/n, Granada, Spain
| | - Juan D G Durán
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Pavel Kuzhir
- Université Côte d'Azur, CNRS UMR 7010, Institute of Physics of Nice, Parc Valrose, 06108 Nice, France
| | - Miguel Alaminos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Modesto T López-López
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain.
| | - Ismael A Rodriguez
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain; Department of Histology, Faculty of Dentistry, Nacional University of Cordoba, Cordoba, Argentina.
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
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Zákutná D, Graef K, Dresen D, Porcar L, Honecker D, Disch S. In situ magnetorheological SANS setup at Institut Laue-Langevin. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04713-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AbstractA magnetorheological sample environment is presented that allows for in situ magnetic field and shear flow during small-angle neutron scattering (SANS) measurements and is now available at the Institut Laue-Langevin (ILL). The setup allows performing simultaneous magnetorheological measurements together with the investigation of structural and magnetic changes on the nanometer length scale underlying the rheological response of ferrofluids. We describe the setup consisting of a commercial rheometer and a custom-made set of Helmholtz coils and show exemplarily data on the field and shear flow alignment of a dispersion of hematite nanospindles in water.
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Suarez-Fernandez WR, Scionti G, Duran JDG, Zubarev AY, Lopez-Lopez MT. Role of particle clusters on the rheology of magneto-polymer fluids and gels. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2020; 378:20190254. [PMID: 32279633 PMCID: PMC7202761 DOI: 10.1098/rsta.2019.0254] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Even in the absence of cross-linking, at large enough concentration, long polymer strands have a strong influence on the rheology of aqueous systems. In this work, we show that solutions of medium molecular weight (120 000-190 000 g mol-1) alginate polymer retained a liquid-like behaviour even for concentrations as large as 20% w/v. On the contrary, solutions of alginate polymer of larger (and also polydisperse) molecular weight (up to 600 000 g mol-1) presented a gel-like behaviour already at concentrations of 7% w/v. We dispersed micrometre-sized iron particles at a concentration of 5% v/v in these solutions, which resulted in either stable magnetic fluids or gels, depending on the type of alginate polymer employed (medium or large molecular weight, respectively). These magneto-polymer composites presented a shear-thinning behaviour that allowed injection through a syringe and recovery of the original properties afterwards. More interestingly, application of a magnetic field resulted in the formation of particle clusters elongated along the field direction. The presence of these clusters intensely affected the rheology of the systems, allowing a reversible control of their stiffness. We finally developed theoretical modelling for the prediction of the magnetic-sensitive rheological properties of these magneto-polymer colloids. This article is part of the theme issue 'Patterns in soft and biological matters'.
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Affiliation(s)
- William R. Suarez-Fernandez
- Department of Applied Physics, University of Granada, 18071 Granada, Spain
- Faculty of Engineering Sciences and Industries, Universidad UTE, 170129 Quito, Ecuador
| | | | - Juan D. G. Duran
- Department of Applied Physics, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria (ibs.Granada), 18012 Granada, Spain
| | - Andrey Yu. Zubarev
- Department of Theoretical and Mathematical Physics, Ural Federal University, Ekaterinburg, 620083, Russia
- M.N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620108, Russia
| | - Modesto T. Lopez-Lopez
- Department of Applied Physics, University of Granada, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria (ibs.Granada), 18012 Granada, Spain
- e-mail:
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12
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Abrougui MM, Srasra E, Lopez-Lopez MT, Duran JDG. Rheology of magnetic colloids containing clusters of particle platelets and polymer nanofibres. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2020; 378:20190255. [PMID: 32279638 PMCID: PMC7202764 DOI: 10.1098/rsta.2019.0255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/25/2019] [Indexed: 05/18/2023]
Abstract
Magnetic hydrogels (ferrogels) are soft materials with a wide range of applications, especially in biomedicine because (i) they can be provided with the required biocompatibility; (ii) their heterogeneous structure allows their use as scaffolds for tissue engineering; (iii) their mechanical properties can be modified by changing different design parameters or by the action of magnetic fields. These characteristics confer them unique properties for acting as patterns that mimic the architecture of biological systems. In addition, and (iv) given their high porosity and aqueous content, ferrogels can be loaded with drugs and guided towards specific targets for local (non-systemic) pharmaceutical treatments. The ferrogels prepared in this work contain magnetic particles obtained by precipitation of magnetite nanoparticles onto the porous surface of bentonite platelets. Then, the particles were functionalized by adsorption of alginate molecules and dispersed in an aqueous solution of sodium alginate. Finally, the gelation was promoted by cross-linking the alginate molecules with Ca2+ ions. The viscoelastic properties of the ferrogels were measured in the absence/presence of external magnetic fields, showing that these ferrogels exhibited a strong enough magnetorheological effect. This behaviour is explained considering the field-induced strengthening of the heterogeneous (particle-polymer) network generated inside the ferrogel. This article is part of the theme issue 'Patterns in soft and biological matters'.
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Affiliation(s)
- Mariem Mekni Abrougui
- Centre National des Recherches en Sciences des Materiaux, Technopole Borej Cedria, BP 73, 8027 Soliman, Tunisia
- Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunisie B.P., 94-Rommana 1068, Tunisia
| | - Ezzeddine Srasra
- Centre National des Recherches en Sciences des Materiaux, Technopole Borej Cedria, BP 73, 8027 Soliman, Tunisia
- Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunisie B.P., 94-Rommana 1068, Tunisia
| | - Modesto T. Lopez-Lopez
- Department of Applied Physics, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Juan D. G. Duran
- Department of Applied Physics, Faculty of Sciences, University of Granada, 18071 Granada, Spain
- e-mail:
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Blyakhman FA, Sokolov SY, Safronov AP, Dinislamova OA, Shklyar TF, Zubarev AY, Kurlyandskaya GV. Ferrogels Ultrasonography for Biomedical Applications. SENSORS 2019; 19:s19183959. [PMID: 31540284 PMCID: PMC6767681 DOI: 10.3390/s19183959] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/02/2019] [Accepted: 09/10/2019] [Indexed: 01/26/2023]
Abstract
Ferrogels (FG) are magnetic composites that are widely used in the area of biomedical engineering and biosensing. In this work, ferrogels with different concentrations of magnetic nanoparticles (MNPs) were synthesized by the radical polymerization of acrylamide in stabilized aqueous ferrofluid. FG samples were prepared in various shapes that are suitable for different characterization techniques. Thin cylindrical samples were used to simulate the case of targeted drug delivery test through blood vessels. Samples of larger size that were in the shape of cylindrical plates were used for the evaluation of the FG applicability as substitutes for damaged structures, such as bone or cartilage tissues. Regardless of the shape of the samples and the conditions of their location, the boundaries of FG were confidently visualized over the entire range of concentrations of MNPs while using medical ultrasound. The amplitude of the reflected echo signal was higher for the higher concentration of MNPs in the gel. This result was not related to the influence of the MNPs on the intensity of the reflected echo signal directly, since the wavelength of the ultrasonic effect used is much larger than the particle size. Qualitative theoretical model for the understanding of the experimental results was proposed while taking into account the concept that at the acoustic oscillations of the hydrogel, the macromolecular net, and water in the gel porous structure experience the viscous Stocks-like interaction.
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Affiliation(s)
- Felix A Blyakhman
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Institute of Natural Sciences and Mathematics Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Sergey Yu Sokolov
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Institute of Natural Sciences and Mathematics Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Alexander P Safronov
- Institute of Natural Sciences and Mathematics Ural Federal University, 620002 Ekaterinburg, Russia.
- Institute of Electrophysics, Ural Division RAS, 620016 Ekaterinburg, Russia.
| | | | - Tatyana F Shklyar
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Institute of Natural Sciences and Mathematics Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Andrey Yu Zubarev
- Institute of Natural Sciences and Mathematics Ural Federal University, 620002 Ekaterinburg, Russia.
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, 620990 Ekaterinburg, Russia.
| | - Galina V Kurlyandskaya
- Institute of Natural Sciences and Mathematics Ural Federal University, 620002 Ekaterinburg, Russia.
- Departamento de Electricidad y Electrónica and BCMaterials, Universidad del País Vasco UPV/EHU, 48080 Bilbao, Spain.
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Abrougui MM, Lopez-Lopez MT, Duran JDG. Mechanical properties of magnetic gels containing rod-like composite particles. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2019; 377:20180218. [PMID: 30827211 PMCID: PMC6460065 DOI: 10.1098/rsta.2018.0218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/06/2018] [Indexed: 05/29/2023]
Abstract
Magnetic gels (ferrogels) are heterogeneous systems structured at the nanoscale that contains magnetic particles dispersed in three-dimensional networks of polymer chains. In the present work, the magnetic particles were synthesized with a core-shell structure, consisting of sepiolite particles covered by magnetite nanoparticles. These composite particles had a rod-like shape with a high aspect ratio. The obtained sepiolite-magnetite particles showed a high enough susceptibility and saturation magnetization. The magneto-rheological (MR) properties, and the intensity of the MR effect, of aqueous suspensions of the synthesized particles were studied. The particles, functionalized by adsorption of alginate molecules, were imbedded in alginate hydrogels to get homogeneous soft materials. The particles were linked to the polymer chains as the knots in a network and dominated in a great extent the mechanical properties of the materials. After determining the optimal compositions of the ferrogels, their viscoelastic properties were measured in the absence/presence of magnetic fields. The results pointed out that the MR effect provided by the clay-magnetite particles was considerably more intense than those achieved in ferrogels that contain spherical magnetic microparticles. Therefore, the imbedding of rod-shaped magnetic particles in hydrogels allows controlling the mechanical properties in a wider range than in conventional ferrogels. This article is part of the theme issue 'Heterogeneous materials: metastable and non-ergodic internal structures'.
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Affiliation(s)
- Mariem M. Abrougui
- Centre National des Recherches en Sciences des Materiaux, Technopole Borej Cedria, BP 73, 8027 Soliman, Tunisia
- Faculté des Sciences de Tunis, Université de Tunis El Manar, Tunisie B.P. 94, Rommana 1068, Tunisia
| | - Modesto T. Lopez-Lopez
- Department of Applied Physics, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Juan D. G. Duran
- Department of Applied Physics, Faculty of Sciences, University of Granada, 18071 Granada, Spain
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15
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Gila-Vilchez C, Mañas-Torres MC, Contreras-Montoya R, Alaminos M, Duran JDG, de Cienfuegos LÁ, Lopez-Lopez MT. Anisotropic magnetic hydrogels: design, structure and mechanical properties. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2019; 377:20180217. [PMID: 30827221 PMCID: PMC6460063 DOI: 10.1098/rsta.2018.0217] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/09/2018] [Indexed: 05/18/2023]
Abstract
Anisotropy is an intrinsic feature of most of the human tissues (e.g. muscle, skin or cartilage). Because of this, there has been an intense effort in the search of methods for the induction of permanent anisotropy in hydrogels intended for biomedical applications. The dispersion of magnetic particles or beads in the hydrogel precursor solution prior to cross-linking, in combination with applied magnetic fields, which gives rise to columnar structures, is one of the most recently proposed approaches for this goal. We have gone even further and, in this paper, we show that it is possible to use magnetic particles as actuators for the alignment of the polymer chains in order to obtain anisotropic hydrogels. Furthermore, we characterize the microstructural arrangement and mechanical properties of the resulting hydrogels. This article is part of a theme issue 'Heterogeneous materials: metastable and non-ergodic internal structures'.
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Affiliation(s)
- Cristina Gila-Vilchez
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Mari C. Mañas-Torres
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
- Department of Organic Chemistry, University of Granada, Avenida de la Fuente Nueva, 18071 Granda, Spain
| | - Rafael Contreras-Montoya
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
- Department of Organic Chemistry, University of Granada, Avenida de la Fuente Nueva, 18071 Granda, Spain
| | - Miguel Alaminos
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
- Department of Histology (Tissue Engineering Group), University of Granada, Avenida de la investigación, 18016 Granada, Spain
| | - Juan D. G. Duran
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
| | - Luis Álvarez de Cienfuegos
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
- Department of Organic Chemistry, University of Granada, Avenida de la Fuente Nueva, 18071 Granda, Spain
| | - Modesto T. Lopez-Lopez
- Department of Applied Physics, University of Granada, Avenida de la Fuente Nueva, 18071 Granada, Spain
- Instituto de Investigación Biosanitaria ibs. GRANADA, Granada, Spain
- e-mail:
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16
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Horváth B, Rigó M, Guba S, Szalai I, Barabás R. Magnetic field response of aqueous hydroxyapatite based magnetic suspensions. Heliyon 2019; 5:e01507. [PMID: 31011653 PMCID: PMC6465587 DOI: 10.1016/j.heliyon.2019.e01507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/25/2019] [Accepted: 04/08/2019] [Indexed: 11/22/2022] Open
Abstract
During the biomedical and biotechnological applications of hydroxyapatite based magnetic biomaterials the response to various magnetic fields (i.e. change in flow behavior) plays a pivotal role in manipulating these materials. Numerous studies discuss the synthesis, characterization and possible applications of magnetic hydroxyapatite, however the number of reports related to the magnetic response is limited. In this study we investigated the response of aqueous suspensions of magnetite/hydroxyapatite composites with gelatin as an additive to homogeneous and inhomogeneous magnetic fields. Under homogeneous field the change in rheological properties was determined, and correlated with the composition of the composites. The effect of magnetite and gelatin content on the zero field viscosity and magnetic susceptibility were also evaluated. The response to inhomogeneous field was characterized by measuring the magnetic body force acting on droplets of the aqueous suspensions. We found that the formulation of the composites and the presence of additive largely affect the magnetic response.
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Affiliation(s)
- Barnabás Horváth
- Institute of Physics and Mechatronics, University of Pannonia, 10 Egyetem St, H-8200 Veszprém, Hungary
| | - Melinda Rigó
- Department of Chemistry and Chemical Engineering of the Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos St, RO-400028 Cluj-Napoca, Romania
| | - Sándor Guba
- Institute of Physics and Mechatronics, University of Pannonia, 10 Egyetem St, H-8200 Veszprém, Hungary
| | - István Szalai
- Institute of Physics and Mechatronics, University of Pannonia, 10 Egyetem St, H-8200 Veszprém, Hungary
- Institute of Mechatronics Engineering and Research, University of Pannonia, 18/A Gasparich Márk St, H-8900 Zalaegerszeg, Hungary
| | - Réka Barabás
- Department of Chemistry and Chemical Engineering of the Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos St, RO-400028 Cluj-Napoca, Romania
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17
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Fernandes Patrício TM, Panseri S, Montesi M, Iafisco M, Sandri M, Tampieri A, Sprio S. Superparamagnetic hybrid microspheres affecting osteoblasts behaviour. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:234-247. [DOI: 10.1016/j.msec.2018.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 09/10/2018] [Accepted: 11/09/2018] [Indexed: 01/12/2023]
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18
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Blyakhman FA, Makarova EB, Fadeyev FA, Lugovets DV, Safronov AP, Shabadrov PA, Shklyar TF, Melnikov GY, Orue I, Kurlyandskaya GV. The Contribution of Magnetic Nanoparticles to Ferrogel Biophysical Properties. NANOMATERIALS 2019; 9:nano9020232. [PMID: 30744036 PMCID: PMC6410145 DOI: 10.3390/nano9020232] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 01/31/2019] [Accepted: 02/05/2019] [Indexed: 02/07/2023]
Abstract
Iron oxide γ-Fe2O3 magnetic nanoparticles (MNPs) were fabricated by laser target evaporation technique (LTE) and their structure and magnetic properties were studied. Polyacrylamide (PAAm) gels with different cross-linking density of the polymer network and polyacrylamide-based ferrogel with embedded LTE MNPs (0.34 wt.%) were synthesized. Their adhesive and proliferative potential with respect to human dermal fibroblasts were studied. At the same value of Young modulus, the adhesive and proliferative activities of the human dermal fibroblasts on the surface of ferrogel were unexpectedly much higher in comparison with the surface of PAAm gel. Properties of PAAm-100 + γ-Fe2O3 MNPs composites were discussed with focus on creation of a new generation of drug delivery systems combined in multifunctional devices, including magnetic field assisted delivery, positioning, and biosensing. Although exact applications are still under development, the obtained results show a high potential of LTE MNPs to be applied for cellular technologies and tissue engineering. PAAm-100 ferrogel with very low concentration of γ-Fe2O3 MNPs results in significant improvement of the cells’ compatibility to the gel-based scaffold.
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Affiliation(s)
- Felix A Blyakhman
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Emilia B Makarova
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Ural Scientific Institute of Traumatology and Orthopaedics, 620014 Ekaterinburg, Russia.
| | - Fedor A Fadeyev
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Center of Specialized Types of Medical Care Institute of Medical Cell Technologies, 620026 Ekaterinburg, Russia.
| | - Daiana V Lugovets
- Center of Specialized Types of Medical Care Institute of Medical Cell Technologies, 620026 Ekaterinburg, Russia.
| | - Alexander P Safronov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.
- Institute of Electrophysics, Ural Division RAS, 620016 Yekaterinburg, Russia.
| | - Pavel A Shabadrov
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Tatyana F Shklyar
- Ural State Medical University, 620028 Ekaterinburg, Russia.
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Grigory Yu Melnikov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.
| | - Iñaki Orue
- Advanced Research Facilities (SGIKER), Universidad del País Vasco UPV-EHU, 48080 Bilbao, Spain.
| | - Galina V Kurlyandskaya
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.
- Universidad del País Vasco UPV/EHU, Departamento de Electricidad y Electrónica and BCMaterials, 48080 Bilbao, Spain.
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19
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Ning L, Zhu N, Mohabatpour F, Sarker MD, Schreyer DJ, Chen X. Bioprinting Schwann cell-laden scaffolds from low-viscosity hydrogel compositions. J Mater Chem B 2019. [DOI: 10.1039/c9tb00669a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A printable hydrogel composition for Schwann cell-laden tissue scaffold bioprinting in damaged nerve regeneration.
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Affiliation(s)
- Liqun Ning
- Department of Mechanical Engineering
- College of Engineering
- University of Saskatchewan
- Canada
| | - Ning Zhu
- Canadian Light Source
- Saskatoon
- Canada
| | - Fatemeh Mohabatpour
- Division of Biomedical Engineering
- College of Engineering
- University of Saskatchewan
- Canada
| | - M. D. Sarker
- Division of Biomedical Engineering
- College of Engineering
- University of Saskatchewan
- Canada
| | - David J. Schreyer
- Department of Anatomy and Cell Biology
- College of Medicine
- University of Saskatchewan
- Canada
| | - Xiongbiao Chen
- Department of Mechanical Engineering
- College of Engineering
- University of Saskatchewan
- Canada
- Division of Biomedical Engineering
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20
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BLYAKHMAN FA, SAFRONOV AP, MAKEYEV OG, MELEKHIN VV, SHKLYAR TF, ZUBAREV AY, MAKAROVA EB, SICHKAR DA, RUSINOVA MA, SOKOLOV SY, KURLYANDSKAYA GV. EFFECT OF THE POLYACRYLAMIDE FERROGEL ELASTICITY ON THE CELL ADHESIVENESS TO MAGNETIC COMPOSITE. J MECH MED BIOL 2018. [DOI: 10.1142/s0219519418500604] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Biocompatible polyacrylamide gels are widely required for the development of mechanically “soft” magnetic material for the purposes of different biomedical applications. In this work, ferrogels were synthesized by radical polymerization of acrylamide in a stable aqueous suspension of magnetic maghemite [Formula: see text]-Fe[Formula: see text]O[Formula: see text] nanoparticles (MNPs) with the median value in diameter of 11.4[Formula: see text]nm fabricated by laser target evaporation. Gel network density was set to 1:100, the concentrations of embedded MNPs were fixed at 0.00%, 0.25%, 0.50%, 0.75% or 1.0% by weight. Ferrogels’ Young’s modulus and affinity to the human dermal fibroblasts adhesiveness were tested. To estimate the cells adhesive activity to gels, the adhesion index was calculated as the number of adhered cells divided by the number of cells sown and multiplied by 100%. The gradual increase of MNPs concentration in the gel network resulted in the significant increase of ferrogel’s Young’s modulus and cells adhesion activity. In particular, at the MNPs concentration of 0.25%, the modulus and the adhesion index were equal to [Formula: see text]30[Formula: see text]kPa and [Formula: see text]90%, correspondingly. The adhesion index at highest MNPs concentration of 1.0% was close to 100% and modulus to [Formula: see text]40[Formula: see text]kPa. The increase of cells adhesiveness rise with MNPs concentration closely correlated with the direct impact of MNPs on the gel stiffness.
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Affiliation(s)
- F. A. BLYAKHMAN
- Ural State Medical University, Yekaterinburg 620028, Russia
- Ural Federal University, Yekaterinburg 620002, Russia
| | - A. P. SAFRONOV
- Ural Federal University, Yekaterinburg 620002, Russia
- Institute of Electrophysics, Ural Division, RAS, Yekaterinburg 620016, Russia
| | - O. G. MAKEYEV
- Ural State Medical University, Yekaterinburg 620028, Russia
| | - V. V. MELEKHIN
- Ural State Medical University, Yekaterinburg 620028, Russia
| | - T. F. SHKLYAR
- Ural State Medical University, Yekaterinburg 620028, Russia
- Ural Federal University, Yekaterinburg 620002, Russia
| | - A. Y. ZUBAREV
- Ural Federal University, Yekaterinburg 620002, Russia
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian, Academy of Sciences, Yekaterinburg 620108, Russia
| | - E. B. MAKAROVA
- Ural State Medical University, Yekaterinburg 620028, Russia
- Ural Institute of Traumatology and Orthopedics, Yekaterinburg 620000, Russia
| | - D. A. SICHKAR
- Ural State Medical University, Yekaterinburg 620028, Russia
| | - M. A. RUSINOVA
- Ural State Medical University, Yekaterinburg 620028, Russia
- Ural Federal University, Yekaterinburg 620002, Russia
| | - S. Y. SOKOLOV
- Ural State Medical University, Yekaterinburg 620028, Russia
- Ural Federal University, Yekaterinburg 620002, Russia
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21
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Ning L, Sun H, Lelong T, Guilloteau R, Zhu N, Schreyer DJ, Chen X. 3D bioprinting of scaffolds with living Schwann cells for potential nerve tissue engineering applications. Biofabrication 2018; 10:035014. [DOI: 10.1088/1758-5090/aacd30] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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22
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Borin D, Chirikov D, Zubarev A. Shear Elasticity of Magnetic Gels with Internal Structures. SENSORS (BASEL, SWITZERLAND) 2018; 18:E2054. [PMID: 29954115 PMCID: PMC6069502 DOI: 10.3390/s18072054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 06/14/2018] [Accepted: 06/20/2018] [Indexed: 12/13/2022]
Abstract
We present the results of the theoretical modeling of the elastic shear properties of a magnetic gel, consisting of soft matrix and embedded, fine magnetizable particles, which are united in linear chain-like structures. We suppose that the composite is placed in a magnetic field, perpendicular to the direction of the sample shear. Our results show that the field can significantly enhance the mechanical rigidity of the soft composite. Theoretical results are in quantitative agreement with the experiments.
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Affiliation(s)
- Dmitry Borin
- Chair of Magnetofluiddynamics, Measuring and Automation Technology, TU Dresden, 01069 Dresden, Germany.
| | - Dmitri Chirikov
- Department of Theoretical and Mathematical Physics, Ural Federal University, Lenina Ave 51, 620083 Ekaterinburg, Russia.
| | - Andrey Zubarev
- Department of Theoretical and Mathematical Physics, Ural Federal University, Lenina Ave 51, 620083 Ekaterinburg, Russia.
- M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Sofia Kovalevskaya st., 18, 620219 Ekaterinburg, Russia.
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23
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Chouhan D, Mehrotra S, Majumder O, Mandal BB. Magnetic Actuator Device Assisted Modulation of Cellular Behavior and Tuning of Drug Release on Silk Platform. ACS Biomater Sci Eng 2018; 5:92-105. [DOI: 10.1021/acsbiomaterials.8b00240] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Dimple Chouhan
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Shreya Mehrotra
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Omkar Majumder
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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24
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Scionti G, Rodriguez-Arco L, Lopez-Lopez MT, Medina-Castillo AL, Garzón I, Alaminos M, Toledano M, Osorio R. Effect of functionalized PHEMA micro- and nano-particles on the viscoelastic properties of fibrin-agarose biomaterials. J Biomed Mater Res A 2017; 106:738-745. [DOI: 10.1002/jbm.a.36275] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 09/25/2017] [Accepted: 10/16/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Giuseppe Scionti
- Tissue Engineering Group, Department of Histology; Faculty of Medicine, University of Granada, Avenida de la Investigación 11; Granada 18016 Spain
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering; Technical University of Catalonia (UPC), EEBE, Carrer d'Eduard Maristany 10-14; Barcelona 08930 Spain
| | - Laura Rodriguez-Arco
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
- Department of Applied Physics; Faculty of Science, University of Granada, Campus de Fuentenueva; Granada 18071 Spain
| | - Modesto T. Lopez-Lopez
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
- Department of Applied Physics; Faculty of Science, University of Granada, Campus de Fuentenueva; Granada 18071 Spain
| | - Antonio L. Medina-Castillo
- NanoMyP, Spin-Off Enterprise from University of Granada, Edificio BIC-Granada, Avenida de la Innovación 1; Armilla Granada 18016 Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology; Faculty of Medicine, University of Granada, Avenida de la Investigación 11; Granada 18016 Spain
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology; Faculty of Medicine, University of Granada, Avenida de la Investigación 11; Granada 18016 Spain
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
| | - Manuel Toledano
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
- Dental School; University of Granada, Colegio Máximo, Campus de Cartuja s/n; Granada 18017 Spain
| | - Raquel Osorio
- Instituto de Investigación Biosanitaria ibs GRANADA; Granada Spain
- Dental School; University of Granada, Colegio Máximo, Campus de Cartuja s/n; Granada 18017 Spain
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25
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Lopez-Lopez MT, Borin DY, Zubarev AY. Shear elasticity of isotropic magnetic gels. Phys Rev E 2017; 96:022605. [PMID: 28950604 DOI: 10.1103/physreve.96.022605] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Indexed: 01/09/2023]
Abstract
The paper deals with a theoretical study of the effective shear modulus of a magnetic gel, consisting of magnetizable particles randomly and isotropically distributed in an elastic matrix. The effect of an external magnetic field on the composite modulus is the focus of our consideration. We take into account that magnetic interaction between the particles can induce their spatial rearrangement and lead to internal anisotropy of the system. Our results show that, if this magnetically induced anisotropy is insignificant, the applied field reduces the total shear modulus of the composite. Strong anisotropy can qualitatively change the magnetomechanic effect and induce an increase of this modulus with the field.
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Affiliation(s)
- M T Lopez-Lopez
- Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Granada, Campus de Fuentenueva, 18071 Granada, Spain.,Instituto de Investigación Biosantaria de Granada, 18014 Granada, Spain
| | - D Yu Borin
- Chair of Magnetofluiddynamics, Measuring and Automation Technology, TU Dresden 01069, Germany
| | - A Yu Zubarev
- Ural Federal University, Lenina Avenue 51, 620083 Ekaterinburg, Russia.,M.N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Sofia Kovalevskaya 18, 620990 Ekaterinburg, Russia
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26
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Bonhome-Espinosa AB, Campos F, Rodriguez IA, Carriel V, Marins JA, Zubarev A, Duran JDG, Lopez-Lopez MT. Effect of particle concentration on the microstructural and macromechanical properties of biocompatible magnetic hydrogels. SOFT MATTER 2017; 13:2928-2941. [PMID: 28357436 DOI: 10.1039/c7sm00388a] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We analyze the effect of nanoparticle concentration on the physical properties of magnetic hydrogels consisting of polymer networks of the human fibrin biopolymer with embedded magnetic particles, swollen by a water-based solution. We prepared these magnetic hydrogels by polymerization of mixtures consisting mainly of human plasma and magnetic nanoparticles with OH- functionalization. Microscopic observations revealed that magnetic hydrogels presented some cluster-like knots that were connected by several fibrin threads. By contrast, nonmagnetic hydrogels presented a homogeneous net-like structure with only individual connections between pairs of fibers. The rheological analysis demonstrated that the rigidity modulus, as well as the viscoelastic moduli, increased quadratically with nanoparticle content following a square-like function. Furthermore, we found that time for gel point was shorter in the presence of magnetic nanoparticles. Thus, we can conclude that nanoparticles favor the cross-linking process, serving as nucleation sites for the attachment of the fibrin polymer. Attraction between the positive groups of the fibrinogen, from which the fibrin is polymerized, and the negative OH- groups of the magnetic particle surface qualitatively justifies the positive role of the nanoparticles in the enhancement of the mechanical properties of the magnetic hydrogels. Indeed, we developed a theoretical model that semiquantitatively explains the experimental results by assuming the indirect attraction of the fibrinogen through the attached nanoparticles. Due to this attraction the monomers condense into nuclei of the dense phase and by the end of the polymerization process the nuclei (knots) of the dense phase cross-link the fibrin threads, which enhances their mechanical properties.
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27
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Catalano E, Miola M, Ferraris S, Novak S, Oltolina F, Cochis A, Prat M, Vernè E, Rimondini L, Follenzi A. Magnetite and silica-coated magnetite nanoparticles are highly biocompatible on endothelial cells
in vitro. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa62cc] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bioprinted fibrin-factor XIII-hyaluronate hydrogel scaffolds with encapsulated Schwann cells and their in vitro characterization for use in nerve regeneration. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.bprint.2016.12.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Novel potential scaffold for periodontal tissue engineering. Clin Oral Investig 2017; 21:2695-2707. [PMID: 28214952 DOI: 10.1007/s00784-017-2072-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 02/07/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVE The objective of the study is characterization of novel calcium and zinc-loaded electrospun matrices to be used for periodontal regeneration. MATERIALS AND METHODS A polymethylmetacrylate-based membrane was calcium or zinc loaded. Matrices were characterized morphologically by atomic force and scanning electron microscopy and mechanically probed by a nanoindenter. Biomimetic calcium phosphate precipitation on polymeric tissues was assessed. Cell viability tests were performed using oral mucosa fibroblasts. Data were analyzed by Kruskal-Wallis and Mann-Whitney tests or by ANOVA and Student-Newman-Keuls multiple comparisons. RESULTS Zinc and calcium loading on matrices did not modify their morphology but increased nanomechanical properties and decreased nanoroughness. Precipitation of calcium and phosphate on the matrix surfaces was observed in zinc-loaded specimens. Matrices were found to be non-toxic to cells in all the assays. Calcium- and zinc-loaded scaffolds presented a very low cytotoxic effect. CONCLUSIONS Zinc-loaded membranes permit cell viability and promoted mineral precipitation in physiological conditions. Based on the tested nanomechanical properties and scaffold architecture, the proposed membranes may be suitable for cell proliferation. CLINICAL RELEVANCE The ability of zinc-loaded matrices to promote precipitation of calcium phosphate deposits, together with their observed non-toxicity and its surface chemistry allowing covalent binding of proteins, may offer new strategies for periodontal regeneration.
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Osorio R, Alfonso-Rodríguez CA, Medina-Castillo AL, Alaminos M, Toledano M. Bioactive Polymeric Nanoparticles for Periodontal Therapy. PLoS One 2016; 11:e0166217. [PMID: 27820866 PMCID: PMC5098795 DOI: 10.1371/journal.pone.0166217] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 10/25/2016] [Indexed: 11/19/2022] Open
Abstract
Aims to design calcium and zinc-loaded bioactive and cytocompatible nanoparticles for the treatment of periodontal disease. Methods PolymP-nActive nanoparticles were zinc or calcium loaded. Biomimetic calcium phosphate precipitation on polymeric particles was assessed after 7 days immersion in simulated body fluid, by scanning electron microscopy attached to an energy dispersive analysis system. Amorphous mineral deposition was probed by X-ray diffraction. Cell viability analysis was performed using oral mucosa fibroblasts by: 1) quantifying the liberated deoxyribonucleic acid from dead cells, 2) detecting the amount of lactate dehydrogenase enzyme released by cells with damaged membranes, and 3) by examining the cytoplasmic esterase function and cell membranes integrity with a fluorescence-based method using the Live/Dead commercial kit. Data were analyzed by Kruskal-Wallis and Mann-Whitney tests. Results Precipitation of calcium and phosphate on the nanoparticles surfaces was observed in calcium-loaded nanoparticles. Non-loaded nanoparticles were found to be non-toxic in all the assays, calcium and zinc-loaded particles presented a dose dependent but very low cytotoxic effect. Conclusions The ability of calcium-loaded nanoparticles to promote precipitation of calcium phosphate deposits, together with their observed non-toxicity may offer new strategies for periodontal disease treatment.
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Affiliation(s)
- Raquel Osorio
- Dental School. University of Granada. Colegio Máximo, Campus de Cartuja s/n. 18017 Granada, Spain
- * E-mail:
| | | | - Antonio L. Medina-Castillo
- NanoMyP. Spin-Off Enterprise from University of Granada. Edificio BIC-Granada. Av. Innovación 1. 18016 Armilla, Granada, Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, University of Granada, 18012, Granada, Spain
| | - Manuel Toledano
- Dental School. University of Granada. Colegio Máximo, Campus de Cartuja s/n. 18017 Granada, Spain
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García-Martínez L, Campos F, Godoy-Guzmán C, Del Carmen Sánchez-Quevedo M, Garzón I, Alaminos M, Campos A, Carriel V. Encapsulation of human elastic cartilage-derived chondrocytes in nanostructured fibrin-agarose hydrogels. Histochem Cell Biol 2016; 147:83-95. [PMID: 27586854 DOI: 10.1007/s00418-016-1485-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2016] [Indexed: 12/20/2022]
Abstract
The generation of elastic cartilage substitutes for clinical use is still a challenge. In this study, we investigated the possibility of encapsulating human elastic cartilage-derived chondrocytes (HECDC) in biodegradable nanostructured fibrin-agarose hydrogels (NFAH). Viable HECDC from passage 2 were encapsulated in NFAH and maintained in culture conditions. Constructs were harvested for histochemical and immunohistochemical analyses after 1, 2, 3, 4 and 5 weeks of development ex vivo. Histological results demonstrated that it is possible to encapsulate HECDC in NFAH, and that HECDC were able to proliferate and form cells clusters expressing S-100 and vimentin. Additionally, histochemical and immunohistochemical analyses of the extracellular matrix (ECM) showed that HECDC synthetized different ECM molecules (type I and II collagen, elastic fibers and proteoglycans) in the NFAH ex vivo. In conclusion, this study suggests that NFAH can be used to generate biodegradable and biologically active constructs for cartilage tissue engineering applications. However, further cell differentiation, biomechanical and in vivo studies are still needed.
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Affiliation(s)
- Laura García-Martínez
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain.,Doctoral Program in Biomedicine, University of Granada, Granada, Spain
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Carlos Godoy-Guzmán
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain.,Unit of Histology (CIBAP), School of Medicine, Universidad de Santiago de Chile, (USACH), Santiago, Chile
| | - María Del Carmen Sánchez-Quevedo
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Ingrid Garzón
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Miguel Alaminos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Antonio Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain.
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Rodriguez-Arco L, Rodriguez IA, Carriel V, Bonhome-Espinosa AB, Campos F, Kuzhir P, Duran JDG, Lopez-Lopez MT. Biocompatible magnetic core-shell nanocomposites for engineered magnetic tissues. NANOSCALE 2016; 8:8138-50. [PMID: 27029891 DOI: 10.1039/c6nr00224b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The inclusion of magnetic nanoparticles into biopolymer matrixes enables the preparation of magnetic field-responsive engineered tissues. Here we describe a synthetic route to prepare biocompatible core-shell nanostructures consisting of a polymeric core and a magnetic shell, which are used for this purpose. We show that using a core-shell architecture is doubly advantageous. First, gravitational settling for core-shell nanocomposites is slower because of the reduction of the composite average density connected to the light polymer core. Second, the magnetic response of core-shell nanocomposites can be tuned by changing the thickness of the magnetic layer. The incorporation of the composites into biopolymer hydrogels containing cells results in magnetic field-responsive engineered tissues whose mechanical properties can be controlled by external magnetic forces. Indeed, we obtain a significant increase of the viscoelastic moduli of the engineered tissues when exposed to an external magnetic field. Because the composites are functionalized with polyethylene glycol, the prepared bio-artificial tissue-like constructs also display excellent ex vivo cell viability and proliferation. When implanted in vivo, the engineered tissues show good biocompatibility and outstanding interaction with the host tissue. Actually, they only cause a localized transitory inflammatory reaction at the implantation site, without any effect on other organs. Altogether, our results suggest that the inclusion of magnetic core-shell nanocomposites into biomaterials would enable tissue engineering of artificial substitutes whose mechanical properties could be tuned to match those of the potential target tissue. In a wider perspective, the good biocompatibility and magnetic behavior of the composites could be beneficial for many other applications.
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Affiliation(s)
- Laura Rodriguez-Arco
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071 Granada, Spain. and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Ismael A Rodriguez
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain and Department of Histology (Tissue Engineering Group), University of Granada, Faculty of Medicine, Avenida de la Investigación, 11, 18016 Granada, Spain
| | - Victor Carriel
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain and Department of Histology (Tissue Engineering Group), University of Granada, Faculty of Medicine, Avenida de la Investigación, 11, 18016 Granada, Spain
| | - Ana B Bonhome-Espinosa
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071 Granada, Spain. and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Fernando Campos
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain and Department of Histology (Tissue Engineering Group), University of Granada, Faculty of Medicine, Avenida de la Investigación, 11, 18016 Granada, Spain
| | - Pavel Kuzhir
- Laboratory of Condensed Matter Physics, UMR No. 7336, University of Nice-Sophia Antipolis, CNRS, 28 Avenue Joseph Vallot, 06100 Nice, France
| | - Juan D G Duran
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071 Granada, Spain. and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
| | - Modesto T Lopez-Lopez
- Department of Applied Physics, University of Granada, Faculty of Science, Campus de Fuentenueva, 18071 Granada, Spain. and Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
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Magnetic nanocomposite scaffolds combined with static magnetic field in the stimulation of osteoblastic differentiation and bone formation. Biomaterials 2016; 85:88-98. [DOI: 10.1016/j.biomaterials.2016.01.035] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 01/06/2016] [Accepted: 01/15/2016] [Indexed: 01/07/2023]
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