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Lagonegro P, Rossi S, Salvarani N, Lo Muzio FP, Rozzi G, Modica J, Bigi F, Quaretti M, Salviati G, Pinelli S, Alinovi R, Catalucci D, D'Autilia F, Gazza F, Condorelli G, Rossi F, Miragoli M. Synthetic recovery of impulse propagation in myocardial infarction via silicon carbide semiconductive nanowires. Nat Commun 2022; 13:6. [PMID: 35013167 PMCID: PMC8748722 DOI: 10.1038/s41467-021-27637-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 12/02/2021] [Indexed: 01/30/2023] Open
Abstract
Myocardial infarction causes 7.3 million deaths worldwide, mostly for fibrillation that electrically originates from the damaged areas of the left ventricle. Conventional cardiac bypass graft and percutaneous coronary interventions allow reperfusion of the downstream tissue but do not counteract the bioelectrical alteration originated from the infarct area. Genetic, cellular, and tissue engineering therapies are promising avenues but require days/months for permitting proper functional tissue regeneration. Here we engineered biocompatible silicon carbide semiconductive nanowires that synthetically couple, via membrane nanobridge formations, isolated beating cardiomyocytes over distance, restoring physiological cell-cell conductance, thereby permitting the synchronization of bioelectrical activity in otherwise uncoupled cells. Local in-situ multiple injections of nanowires in the left ventricular infarcted regions allow rapid reinstatement of impulse propagation across damaged areas and recover electrogram parameters and conduction velocity. Here we propose this nanomedical intervention as a strategy for reducing ventricular arrhythmia after acute myocardial infarction. Silicon-based materials have the ability to support bioelectrical activity. Here the authors show how injectable silicon carbide nanowires reduce arrhythmias and rapidly restore conduction in a myocardial infarction model.
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Affiliation(s)
- Paola Lagonegro
- Istituto dei Materiali per l'Elettronica e il Magnetismo (IMEM), National Research Council CNR, Parco Area delle Scienze 37/A, 43124, Parma, IT, Italy.,Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Consiglio Nazionale delle Ricerche (SCITEC-CNR), Via A. Corti 12, 20133, Milan, IT, Italy
| | - Stefano Rossi
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, Dipartimento di Medicina e Chirurgia Università di Parma, Via Gramsci 14, 43124, Parma, IT, Italy
| | - Nicolò Salvarani
- Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy.,Istituto di Ricerca Genetica Biomedica (IRGB), National Research Council CNR, UOS Milan Via Fantoli 16/15, 20138, Milan, IT, Italy
| | - Francesco Paolo Lo Muzio
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, Dipartimento di Medicina e Chirurgia Università di Parma, Via Gramsci 14, 43124, Parma, IT, Italy.,Dipartimento di Scienze Chirurgiche Odontostomatologiche e Materno-Infantili, Università di Verona, Policlinico G.B. Rossi, - P.le L.A. Scuro 10, 37134, Verona, IT, Italy
| | - Giacomo Rozzi
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, Dipartimento di Medicina e Chirurgia Università di Parma, Via Gramsci 14, 43124, Parma, IT, Italy.,Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy
| | - Jessica Modica
- Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy.,Istituto di Ricerca Genetica Biomedica (IRGB), National Research Council CNR, UOS Milan Via Fantoli 16/15, 20138, Milan, IT, Italy
| | - Franca Bigi
- Istituto dei Materiali per l'Elettronica e il Magnetismo (IMEM), National Research Council CNR, Parco Area delle Scienze 37/A, 43124, Parma, IT, Italy.,Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze, 11/a - 43124, Parma, IT, Italy
| | - Martina Quaretti
- Istituto dei Materiali per l'Elettronica e il Magnetismo (IMEM), National Research Council CNR, Parco Area delle Scienze 37/A, 43124, Parma, IT, Italy.,Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze, 11/a - 43124, Parma, IT, Italy
| | - Giancarlo Salviati
- Istituto dei Materiali per l'Elettronica e il Magnetismo (IMEM), National Research Council CNR, Parco Area delle Scienze 37/A, 43124, Parma, IT, Italy
| | - Silvana Pinelli
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, Dipartimento di Medicina e Chirurgia Università di Parma, Via Gramsci 14, 43124, Parma, IT, Italy
| | - Rossella Alinovi
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, Dipartimento di Medicina e Chirurgia Università di Parma, Via Gramsci 14, 43124, Parma, IT, Italy
| | - Daniele Catalucci
- Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy.,Istituto di Ricerca Genetica Biomedica (IRGB), National Research Council CNR, UOS Milan Via Fantoli 16/15, 20138, Milan, IT, Italy
| | - Francesca D'Autilia
- Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy
| | - Ferdinando Gazza
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, via del Taglio 10, 43126, Parma, IT, Italy
| | - Gianluigi Condorelli
- Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy.,Department of Biomedical Sciences Humanitas University, Via Rita Levi Montalcini 4, 20090, Pieve Emanuele Milan, IT, Italy
| | - Francesca Rossi
- Istituto dei Materiali per l'Elettronica e il Magnetismo (IMEM), National Research Council CNR, Parco Area delle Scienze 37/A, 43124, Parma, IT, Italy
| | - Michele Miragoli
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, Dipartimento di Medicina e Chirurgia Università di Parma, Via Gramsci 14, 43124, Parma, IT, Italy. .,Humanitas Research Hospital - IRCCS, Via Manzoni 56, 20089, Rozzano (Milan), IT, Italy.
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Morresi T, Timpel M, Pedrielli A, Garberoglio G, Tatti R, Verucchi R, Pasquali L, Pugno NM, Nardi MV, Taioli S. A novel combined experimental and multiscale theoretical approach to unravel the structure of SiC/SiO x core/shell nanowires for their optimal design. NANOSCALE 2018; 10:13449-13461. [PMID: 29972180 DOI: 10.1039/c8nr03712d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work we propose a realistic model of nanometer-thick SiC/SiOx core/shell nanowires (NWs) using a combined first-principles and experimental approach. SiC/SiOx core/shell NWs were first synthesised by a low-cost carbothermal method and their chemical-physical experimental analysis was accomplished by recording X-ray absorption near-edge spectra. In particular, the K-edge absorption lineshapes of C, O, and Si are used to validate our computational model of the SiC/SiOx core/shell NW architectures, obtained by a multiscale approach, including molecular dynamics, tight-binding and density functional simulations. Moreover, we present ab initio calculations of the electronic structure of hydrogenated SiC and SiC/SiOx core/shell NWs, studying the modification induced by several different substitutional defects and impurities into both the surface and the interfacial region between the SiC core and the SiOx shell. We find that on the one hand the electron quantum confinement results in a broadening of the band gap, while hydroxyl surface terminations decrease it. This computational investigation shows that our model of SiC/SiOx core/shell NWs is capable to deliver an accurate interpretation of the recorded X-ray absorption near-edge spectra and proves to be a valuable tool towards the optimal design and application of these nanosystems in actual devices.
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Affiliation(s)
- Tommaso Morresi
- European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*-FBK) and Trento Institute for Fundamental Physics and Applications (TIFPA-INFN), Trento, Italy.
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Cacchioli A, Ravanetti F, Alinovi R, Pinelli S, Rossi F, Negri M, Bedogni E, Campanini M, Galetti M, Goldoni M, Lagonegro P, Alfieri R, Bigi F, Salviati G. Cytocompatibility and cellular internalization mechanisms of SiC/SiO2 nanowires. NANO LETTERS 2014; 14:4368-4375. [PMID: 25026180 DOI: 10.1021/nl501255m] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
First evidence of in vitro cytocompatibility of SiC/SiO2 core-shell nanowires is reported. Different internalization mechanisms by adenocarcinomic alveolar basal epithelial cells, monocytic cell line derived from an acute monocytic leukemia, breast cancer cells, and normal human dermal fibroblasts are shown. The internalization occurs mainly for macropinocytosis and sporadically by direct penetration in all cell models considered, whereas it occurred for phagocytosis only in monocytic leukemia cells. The cytocompatibility of the nanowires is proved by the analysis of cell proliferation, cell cycle progression, and oxidative stress on the cells treated with NWs as compared to controls. Reactive oxygen species generation was detected as an early event that then quickly run out with a rapid decrease only in adenocarcinomic alveolar basal epithelial and human dermal fibroblasts cells. In all the cell lines, the intracellular presence of NWs induce the same molecular events but to a different extent: peroxidation of membrane lipids and oxidation of proteins. The NWs do not elicit either midterm (72 h) or long-term (10 days) cytotoxic activity leading to irreversible cellular damages or death. Our results are important in view of a possible use of SiC/SiO2 core-shell structures acting as biomolecule-delivery vectors or intracellular electrodes.
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Affiliation(s)
- A Cacchioli
- Department of Veterinary Science, Unit of Normal Veterinary Anatomy, University of Parma , Parma 43126, Italy
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Fabbri F, Rossi F, Melucci M, Manet I, Attolini G, Favaretto L, Zambianchi M, Salviati G. Optical properties of hybrid T3Pyr/SiO2/3C-SiC nanowires. NANOSCALE RESEARCH LETTERS 2012; 7:680. [PMID: 23244177 PMCID: PMC3534015 DOI: 10.1186/1556-276x-7-680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 12/04/2012] [Indexed: 06/01/2023]
Abstract
A new class of nanostructured hybrid materials is developed by direct grafting of a model thiophene-based organic dye on the surface of 3C-SiC/SiO2 core/shell nanowires. TEM-EDX analysis reveals that the carbon distribution is more spread than it would be, considering only the SiC core size, suggesting a main contribution from C of the oligothiophene framework. Further, the sulfur signal found along the treated wires is not detected in the as-grown samples. In addition, the fluorescent spectra are similar for the functionalized nanostructures and T3Pyr in solution, confirming homogeneous molecule grafting on the nanowire surface. Chemical and luminescence characterizations confirm a homogeneous functionalization of the nanowires. In particular, the fluorophore retains its optical properties after functionalization.
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Affiliation(s)
- Filippo Fabbri
- IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
| | - Francesca Rossi
- IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
| | - Manuela Melucci
- ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
| | - Ilse Manet
- ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
| | - Giovanni Attolini
- IMEM-CNR Institute, Parco Area delle Scienze 37/A, Parma, 43124, Italy
| | - Laura Favaretto
- ISOF-CNR Institute, via P. Gobetti, 101, Bologna, 40129, Italy
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