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Bertani F, Businaro L, Gambacorta L, Mencattini A, Brenda D, Di Giuseppe D, De Ninno A, Solfrizzo M, Martinelli E, Gerardino A. Optical detection of aflatoxins B in grained almonds using fluorescence spectroscopy and machine learning algorithms. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.107073] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Comes MC, Casti P, Mencattini A, Di Giuseppe D, Mermet-Meillon F, De Ninno A, Parrini MC, Businaro L, Di Natale C, Martinelli E. The influence of spatial and temporal resolutions on the analysis of cell-cell interaction: a systematic study for time-lapse microscopy applications. Sci Rep 2019; 9:6789. [PMID: 31043687 PMCID: PMC6494897 DOI: 10.1038/s41598-019-42475-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 03/13/2019] [Indexed: 01/24/2023] Open
Abstract
Cell-cell interactions are an observable manifestation of underlying complex biological processes occurring in response to diversified biochemical stimuli. Recent experiments with microfluidic devices and live cell imaging show that it is possible to characterize cell kinematics via computerized algorithms and unravel the effects of targeted therapies. We study the influence of spatial and temporal resolutions of time-lapse videos on motility and interaction descriptors with computational models that mimic the interaction dynamics among cells. We show that the experimental set-up of time-lapse microscopy has a direct impact on the cell tracking algorithm and on the derived numerical descriptors. We also show that, when comparing kinematic descriptors in two diverse experimental conditions, too low resolutions may alter the descriptors’ discriminative power, and so the statistical significance of the difference between the two compared distributions. The conclusions derived from the computational models were experimentally confirmed by a series of video-microscopy acquisitions of co-cultures of unlabelled human cancer and immune cells embedded in 3D collagen gels within microfluidic devices. We argue that the experimental protocol of acquisition should be adapted to the specific kind of analysis involved and to the chosen descriptors in order to derive reliable conclusions and avoid biasing the interpretation of results.
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Affiliation(s)
- M C Comes
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - P Casti
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - A Mencattini
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - D Di Giuseppe
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - F Mermet-Meillon
- Institute Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005, Paris, France
| | - A De Ninno
- Department of Civil Engineering and Computer Science, University of Rome Tor Vergata, 00133, Rome, Italy.,Institute for Photonics and Nanotechnology, Italian National Research Council, 00156, Rome, Italy
| | - M C Parrini
- Institute Curie, Centre de Recherche, Paris Sciences et Lettres Research University, 75005, Paris, France
| | - L Businaro
- Institute for Photonics and Nanotechnology, Italian National Research Council, 00156, Rome, Italy
| | - C Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - E Martinelli
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy.
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Ciasca G, Papi M, Businaro L, Campi G, Ortolani M, Palmieri V, Cedola A, De Ninno A, Gerardino A, Maulucci G, De Spirito M. Recent advances in superhydrophobic surfaces and their relevance to biology and medicine. Bioinspir Biomim 2016; 11:011001. [PMID: 26844980 DOI: 10.1088/1748-3190/11/1/011001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
By mimicking naturally occurring superhydrophobic surfaces, scientists can now realize artificial surfaces on which droplets of a few microliters of water are forced to assume an almost spherical shape and an extremely high contact angle. In recent decades, these surfaces have attracted much attention due to their technological applications for anti-wetting and self-cleaning materials. Very recently, researchers have shifted their interest to investigate whether superhydrophobic surfaces can be exploited to study biological systems. This research effort has stimulated the design and realization of new devices that allow us to actively organize, visualize and manipulate matter at both the microscale and nanoscale levels. Such precise control opens up wide applications in biomedicine, as it allows us to directly manipulate objects at the typical length scale of cells and macromolecules. This progress report focuses on recent biological and medical applications of superhydrophobicity. Particular regard is paid to those applications that involve the detection, manipulation and study of extremely small quantities of molecules, and to those that allow high throughput cell and biomaterial screening.
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Affiliation(s)
- G Ciasca
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Largo F Vito 1, 00168 Rome, Italy
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Vacchelli E, Ma Y, Baracco EE, Sistigu A, Enot DP, Pietrocola F, Yang H, Adjemian S, Chaba K, Semeraro M, Signore M, De Ninno A, Lucarini V, Peschiaroli F, Businaro L, Gerardino A, Manic G, Ulas T, Gunther P, Schultze JL, Kepp O, Stoll G, Lefebvre C, Mulot C, Castoldi F, Rusakiewicz S, Ladoire S, Apetoh L, Bravo-San Pedro JM, Lucattelli M, Delarasse C, Boige V, Ducreux M, Delaloge S, Borg C, Andre F, Schiavoni G, Vitale I, Laurent-Puig P, Mattei F, Zitvogel L, Kroemer G. Chemotherapy-induced antitumor immunity requires formyl peptide receptor 1. Science 2015; 350:972-8. [DOI: 10.1126/science.aad0779] [Citation(s) in RCA: 294] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 10/08/2015] [Indexed: 11/02/2022]
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Ciasca G, Businaro L, Papi M, Notargiacomo A, Chiarpotto M, De Ninno A, Palmieri V, Carta S, Giovine E, Gerardino A, De Spirito M. Self-assembling of large ordered DNA arrays using superhydrophobic patterned surfaces. Nanotechnology 2013; 24:495302. [PMID: 24231603 DOI: 10.1088/0957-4484/24/49/495302] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper we present a simple and robust method to realize highly ordered arrays of stretched and suspended DNA molecules over the millimeter length scale. To this end we used an ad hoc designed superhydrophobic surface made of high aspect-ratio silicon pillars, where we deposited a droplet containing genomic DNA. A precise positioning of DNA strands was achieved by shaping the silicon pillars so that sharpened features resembling tips were included. Such features allowed us to accurately control the droplet de-wetting dynamics, pinning DNA strands in a well-defined position above pillars. The proposed technique has the potential to positively impact on the development of novel DNA chips for genetic analysis.
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Affiliation(s)
- G Ciasca
- Istituto di Fisica, Universitá Cattolica SC, L.go Francesco Vito 1 I-00168, Roma, Italy
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De Ninno A, Congiu Castellano A. Deprotonation of glutamic acid induced by weak magnetic field: An FTIR-ATR study. Bioelectromagnetics 2010; 32:218-25. [DOI: 10.1002/bem.20631] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Accepted: 10/28/2010] [Indexed: 11/08/2022]
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Comisso N, Del Giudice E, De Ninno A, Fleischmann M, Giuliani L, Mengoli G, Merlo F, Talpo G. Dynamics of the ion cyclotron resonance effect on amino acids adsorbed at the interfaces. Bioelectromagnetics 2005; 27:16-25. [PMID: 16283642 DOI: 10.1002/bem.20171] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study we show a reproduction of the Zhadin experiment, which consists of the transient increase of the electrolytic current flow across an aqueous solution of L-arginine and L-glutamic acid induced by a proper low frequency alternating magnetic field superimposed to a static magnetic field of higher strength. We have identified the mechanisms that were at the origin of the so-far poor reproducibility of the above effect: the state of polarization of the electrode turned out to be a key parameter. The electrochemical investigation of the system shows that the observed phenomenon involves the transitory activation of the anode due to ion cyclotron frequency effect, followed again by anode passivation due to the adsorption of amino acid and its oxidation products. The likely occurrence of similar ion cyclotron resonance (ICR) phenomena at biological membranes, the implications on ion circulation in living matter, and the consequent biological impact of environmental magnetic fields are eventually discussed.
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