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Verrelli CM, Romagnoli C, Colistra N, Ferretti I, Annino G, Bonaiuto V, Manzi V. Golden ratio and self-similarity in swimming: breast-stroke and the back-stroke. Front Hum Neurosci 2023; 17:1176866. [PMID: 37554410 PMCID: PMC10406382 DOI: 10.3389/fnhum.2023.1176866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/19/2023] [Indexed: 08/10/2023] Open
Abstract
INTRODUCTION Dynamics-on-graph concepts and generalized finite-length Fibonacci sequences have been used to characterize, from a temporal point of view, both human walking & running at a comfortable speed and front-crawl & butterfly swimming strokes at a middle/long distance pace. Such sequences, in which the golden ratio plays a crucial role to describe self-similar patterns, have been found to be subtly experimentally exhibited by healthy (but not pathological) walking subjects and elite swimmers, in terms of durations of gait/stroke-subphases with a clear physical meaning. Corresponding quantitative indices have been able to unveil the resulting hidden time-harmonic and self-similar structures. RESULTS In this study, we meaningfully extend such latest findings to the remaining two swimming strokes, namely, the breast-stroke and the back-stroke: breast-stroke, just like butterfly swimming, is highly technical and involves the complex coordination of the arm and leg actions, while back-stroke is definitely similar to front-crawl swimming. An experimental validation with reference to international-level swimmers is included.
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Affiliation(s)
| | - Cristian Romagnoli
- Sport Engineering Lab, Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy
- Department of Human Science and Promotion of Quality of Life, San Raffaele Open University, Rome, Italy
| | - Nicolò Colistra
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Ivo Ferretti
- Biomechanical and Video-Analysis Area for the National Teams of “Federazione Italiana Nuoto”, Rome, Italy
| | - Giuseppe Annino
- Sport Engineering Lab, Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy
- Human Performance Lab, Centre of Space Biomedicine, Department of Medicine Systems, University of Rome Tor Vergata, Rome, Italy
| | - Vincenzo Bonaiuto
- Sport Engineering Lab, Department of Industrial Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Vincenzo Manzi
- Department of Humanities Science, Pegaso Open University, Naples, Italy
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Iachetta G, Melle G, Colistra N, Tantussi F, De Angelis F, Dipalo M. Long-term in vitro recording of cardiac action potentials on microelectrode arrays for chronic cardiotoxicity assessment. Arch Toxicol 2023; 97:509-522. [PMID: 36607357 PMCID: PMC9859891 DOI: 10.1007/s00204-022-03422-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 11/15/2022] [Indexed: 01/07/2023]
Abstract
The reliable identification of chronic cardiotoxic effects in in vitro screenings is fundamental for filtering out toxic molecular entities before in vivo animal experimentation and clinical trials. Present techniques such as patch-clamp, voltage indicators, and standard microelectrode arrays do not offer at the same time high sensitivity for measuring transmembrane ion currents and low-invasiveness for monitoring cells over long time. Here, we show that optoporation applied to microelectrode arrays enables measuring action potentials from human-derived cardiac syncytia for more than 1 continuous month and provides reliable data on chronic cardiotoxic effects caused by known compounds such as pentamidine. The technique has high potential for detecting chronic cardiotoxicity in the early phases of drug development.
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Affiliation(s)
| | | | | | | | | | - Michele Dipalo
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy.
- FORESEE Biosystems Srl, Genova, Italy.
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Iachetta G, Colistra N, Melle G, Deleye L, Tantussi F, De Angelis F, Dipalo M. Improving reliability and reducing costs of cardiotoxicity assessments using laser-induced cell poration on microelectrode arrays. Toxicol Appl Pharmacol 2021; 418:115480. [PMID: 33689843 DOI: 10.1016/j.taap.2021.115480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/07/2021] [Accepted: 03/02/2021] [Indexed: 10/22/2022]
Abstract
Drug-induced cardiotoxicity is a major barrier to drug development and a main cause of withdrawal of marketed drugs. Drugs can strongly alter the spontaneous functioning of the heart by interacting with the cardiac membrane ion channels. If these effects only surface during in vivo preclinical tests, clinical trials or worse after commercialization, the societal and economic burden will be significant and seriously hinder the efficient drug development process. Hence, cardiac safety pharmacology requires in vitro electrophysiological screening assays of all drug candidates to predict cardiotoxic effects before clinical trials. In the past 10 years, microelectrode array (MEA) technology began to be considered a valuable approach in pharmaceutical applications. However, an effective tool for high-throughput intracellular measurements, compatible with pharmaceutical standards, is not yet available. Here, we propose laser-induced optoacoustic poration combined with CMOS-MEA technology as a reliable and effective platform to detect cardiotoxicity. This approach enables the acquisition of high-quality action potential recordings from large numbers of cardiomyocytes within the same culture well, providing reliable data using single-well MEA devices and single cardiac syncytia per each drug. Thus, this technology could be applied in drug safety screening platforms reducing times and costs of cardiotoxicity assessments, while simultaneously improving the data reliability.
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Affiliation(s)
| | - Nicolò Colistra
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Giovanni Melle
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Lieselot Deleye
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | | | | | - Michele Dipalo
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
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Spanu A, Colistra N, Farisello P, Friz A, Arellano N, Rettner CT, Bonfiglio A, Bozano L, Martinoia S. A three-dimensional micro-electrode array for in-vitro neuronal interfacing. J Neural Eng 2020; 17:036033. [DOI: 10.1088/1741-2552/ab9844] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Bruno G, Colistra N, Melle G, Cerea A, Hubarevich A, Deleye L, De Angelis F, Dipalo M. Microfluidic Multielectrode Arrays for Spatially Localized Drug Delivery and Electrical Recordings of Primary Neuronal Cultures. Front Bioeng Biotechnol 2020; 8:626. [PMID: 32656200 PMCID: PMC7325920 DOI: 10.3389/fbioe.2020.00626] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/21/2020] [Indexed: 12/15/2022] Open
Abstract
Neuropathological models and neurological disease progression and treatments have always been of great interest in biomedical research because of their impact on society. The application of in vitro microfluidic devices to neuroscience-related disciplines provided several advancements in therapeutics or neuronal modeling thanks to the ability to control the cellular microenvironment at spatiotemporal level. Recently, the introduction of three-dimensional nanostructures has allowed high performance in both in vitro recording of electrogenic cells and drug delivery using minimally invasive devices. Independently, both delivery and recording have let to pioneering solutions in neurobiology. However, their combination on a single chip would provide further fundamental improvements in drug screening systems and would offer comprehensive insights into pathologies and diseases progression. Therefore, it is crucial to develop platforms able to monitor progressive changes in electrophysiological behavior in the electrogenic cellular network, induced by spatially localized injection of biochemical agents. In this work, we show the application of a microfluidic multielectrode array (MEA) platform to record spontaneous and chemically stimulated activity in primary neuronal networks. By means of spatially localized caffeine injection via microfluidic nanochannels, the device demonstrated its capability of combined localized drug delivery and cell signaling recording. The platform could detect activity of the neural network at multiple sites while delivering molecules into just a few selected cells, thereby examining the effect of biochemical agents on the desired portion of cell culture.
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Affiliation(s)
- Giulia Bruno
- DIBRIS, Università degli Studi di Genova, Genoa, Italy.,Istituto Italiano di Tecnologia, Genoa, Italy
| | | | - Giovanni Melle
- DIBRIS, Università degli Studi di Genova, Genoa, Italy.,Istituto Italiano di Tecnologia, Genoa, Italy
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Melle G, Bruno G, Maccaferri N, Iachetta G, Colistra N, Barbaglia A, Dipalo M, De Angelis F. Intracellular Recording of Human Cardiac Action Potentials on Market-Available Multielectrode Array Platforms. Front Bioeng Biotechnol 2020; 8:66. [PMID: 32133349 PMCID: PMC7039818 DOI: 10.3389/fbioe.2020.00066] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/27/2020] [Indexed: 01/19/2023] Open
Abstract
High quality attenuated intracellular action potentials from large cell networks can be recorded on multi-electrode arrays by means of 3D vertical nanopillars using electrical pulses. However, most of the techniques require complex 3D nanostructures that prevent the straightforward translation into marketable products and the wide adoption in the scientific community. Moreover, 3D nanostructures are often delicate objects that cannot sustain several harsh use/cleaning cycles. On the contrary, laser optoacoustic poration allows the recording of action potentials on planar nanoporous electrodes made of noble metals. However, these constraints of the electrode material and morphology may also hinder the full exploitation of this methodology. Here, we show that optoacoustic poration is also very effective for porating cells on a large family of MEA electrode configurations, including robust electrodes made of nanoporous titanium nitride or disordered fractal-like gold nanostructures. This enables the recording of high quality cardiac action potentials in combination with optoacoustic poration, providing thus attenuated intracellular recordings on various already commercial devices used by a significant part of the research and industrial communities.
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Affiliation(s)
- Giovanni Melle
- DIBRIS, Università degli Studi di Genova, Genova, Italy
- Istituto Italiano di Tecnologia, Genova, Italy
| | - Giulia Bruno
- DIBRIS, Università degli Studi di Genova, Genova, Italy
- Istituto Italiano di Tecnologia, Genova, Italy
| | - Nicolò Maccaferri
- Department of Physics and Materials Science, University of Luxembourg, Luxembourg, Luxembourg
| | | | | | - Andrea Barbaglia
- Istituto Italiano di Tecnologia, Genova, Italy
- Dipartimento di Fisica, Università degli Studi di Genova, Genova, Italy
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Colistra N, Tedesco M, Massobrio P, Martinoia S. 3D engineered neuronal networks coupled to 3D-MEAs: a new experimental model for in-vitro electrophysiology. Front Cell Neurosci 2018. [DOI: 10.3389/conf.fncel.2018.38.00061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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