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Almadhi S, Forth J, Rodriguez-Arco L, Duro-Castano A, Williams I, Ruiz-Pérez L, Battaglia G. Bottom-Up Preparation of Phase-Separated Polymersomes. Macromol Biosci 2023; 23:e2300068. [PMID: 37315231 DOI: 10.1002/mabi.202300068] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/20/2023] [Indexed: 06/16/2023]
Abstract
A bottom-up approach to fabricating monodisperse, two-component polymersomes that possess phase-separated ("patchy") chemical topology is presented. This approach is compared with already-existing top-down preparation methods for patchy polymer vesicles, such as film rehydration. These findings demonstrate a bottom-up, solvent-switch self-assembly approach that produces a high yield of nanoparticles of the target size, morphology, and surface topology for drug delivery applications, in this case patchy polymersomes of a diameter of ≈50 nm. In addition, an image processing algorithm to automatically calculate polymersome size distributions from transmission electron microscope images based on a series of pre-processing steps, image segmentation, and round object identification is presented.
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Affiliation(s)
- Safa Almadhi
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Joe Forth
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
| | - Laura Rodriguez-Arco
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Department of Applied Physics, Faculty of Sciences, University of Granada, Granada, 18071, Spain
| | - Aroa Duro-Castano
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Curapath, Valencia, 46980, Spain
| | - Ian Williams
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, 08028, Spain
| | - Lorena Ruiz-Pérez
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, 08028, Spain
| | - Giuseppe Battaglia
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology, Barcelona, 08028, Spain
- Catalan Institution of Research and Advanced Studies, Barcelona, 08010, Spain
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Vazquez-Perez F, Gila-Vilchez C, Duran J, Zubarev A, Alvarez de Cienfuegos L, Rodriguez-Arco L, Lopez-Lopez M. Composite polymer hydrogels with high and reversible elongation under magnetic stimuli. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Liu M, Apriceno A, Sipin M, Scarpa E, Rodriguez-Arco L, Poma A, Marchello G, Battaglia G, Angioletti-Uberti S. Combinatorial entropy behaviour leads to range selective binding in ligand-receptor interactions. Nat Commun 2020; 11:4836. [PMID: 32973157 PMCID: PMC7515919 DOI: 10.1038/s41467-020-18603-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 08/28/2020] [Indexed: 12/18/2022] Open
Abstract
From viruses to nanoparticles, constructs functionalized with multiple ligands display peculiar binding properties that only arise from multivalent effects. Using statistical mechanical modelling, we describe here how multivalency can be exploited to achieve what we dub range selectivity, that is, binding only to targets bearing a number of receptors within a specified range. We use our model to characterise the region in parameter space where one can expect range selective targeting to occur, and provide experimental support for this phenomenon. Overall, range selectivity represents a potential path to increase the targeting selectivity of multivalent constructs.
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Affiliation(s)
- Meng Liu
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, People's Republic of China
- Institute of Physics, Chinese Academy of Science, Beijing, People's Republic of China
| | - Azzurra Apriceno
- Department of Chemistry, University College London, London, UK
- Institute for the Physics of Living Systems, University College London, London, UK
| | - Miguel Sipin
- Department of Chemistry, University College London, London, UK
- Institute for the Physics of Living Systems, University College London, London, UK
| | - Edoardo Scarpa
- Department of Chemistry, University College London, London, UK
- Institute for the Physics of Living Systems, University College London, London, UK
| | - Laura Rodriguez-Arco
- Department of Chemistry, University College London, London, UK
- Institute for the Physics of Living Systems, University College London, London, UK
| | - Alessandro Poma
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, UK
| | - Gabriele Marchello
- Institute for the Physics of Living Systems, University College London, London, UK
- Physical Chemistry Chemical Physics Division, Department of Chemistry, University College London, London, UK
- The UCL EPSRC/JEOL Centre for Liquid Phase Electron Microscopy, London, UK
| | - Giuseppe Battaglia
- Department of Chemistry, University College London, London, UK.
- Institute for the Physics of Living Systems, University College London, London, UK.
- The UCL EPSRC/JEOL Centre for Liquid Phase Electron Microscopy, London, UK.
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute for Science and Technology (BIST), Barcelona, Spain.
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.
| | - Stefano Angioletti-Uberti
- Institute of Physics, Chinese Academy of Science, Beijing, People's Republic of China.
- Department of Materials, Imperial College London, London, UK.
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Lopez-Lopez MT, Nogueras-Lara F, Rodriguez-Arco L, Guigo N, Sbirrazzuoli N, Zubarev AY, Lacis S, Kuzhir P. Kinetics of doublet formation in bicomponent magnetic suspensions: The role of the magnetic permeability anisotropy. Phys Rev E 2017; 96:062604. [PMID: 29347351 DOI: 10.1103/physreve.96.062604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Indexed: 11/07/2022]
Abstract
Micron-sized particles (microbeads) dispersed in a suspension of magnetic nanoparticles, i.e., ferrofluids, can be assembled into different types of structures upon application of an external magnetic field. This paper is devoted to theoretical modeling of a relative motion of a pair of microbeads (either soft ferromagnetic or diamagnetic) in the ferrofluid under the action of applied uniform magnetic field which induces magnetic moments in the microbeads making them attracting to each other. The model is based on a point-dipole approximation for the magnetic interactions between microbeads mediated by the ferrofluid; however, the ferrofluid is considered to possess an anisotropic magnetic permeability thanks to field-induced structuring of its nanoparticles. The model is tested against experimental results and shows generally better agreement with experiments than the model considering isotropic magnetic permeability of ferrofluids. The results could be useful for understanding kinetics of aggregation of microbeads suspended in a ferrofluid. From a broader perspective, the present study is believed to contribute to a general understanding of particle behaviors in anisotropic media.
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Affiliation(s)
- M T Lopez-Lopez
- Department of Applied Physics, University of Granada, Campus de Fuentenueva, 18071 Granada, Spain
| | - F Nogueras-Lara
- Department of Applied Physics, University of Granada, Campus de Fuentenueva, 18071 Granada, Spain
| | - L Rodriguez-Arco
- Department of Applied Physics, University of Granada, Campus de Fuentenueva, 18071 Granada, Spain
| | - N Guigo
- University of Côte d'Azur, CNRS UMR 7272, Institute of Chemistry of Nice, Parc Valrose, 06108 Nice, France
| | - N Sbirrazzuoli
- University of Côte d'Azur, CNRS UMR 7272, Institute of Chemistry of Nice, Parc Valrose, 06108 Nice, France
| | - A Yu Zubarev
- Department of Theoretical and Mathematical Physics, Urals Federal University, Lenina Avenue 51, 620083 Ekaterinburg, Russia
| | - S Lacis
- MMML Lab, Department of Physics, University of Latvia, Zellu Street 25, Riga LV-1002, Latvia
| | - P Kuzhir
- University of Côte d'Azur, CNRS UMR 7010, Institute of Physics of Nice (INΦNI), Parc Valrose, 06108 Nice, France
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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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] [What about the content of this article? (0)] [Affiliation(s)] [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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