1
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Lin YS, Sun CL, Tsang S, Bensalem S, Le Pioufle B, Wang HY. Label-free and non-invasive analysis of microorganism surface epistructures at the single-cell level. Biophys J 2023; 122:1794-1806. [PMID: 37041747 DOI: 10.1016/j.bpj.2023.04.012] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 11/10/2022] [Accepted: 04/07/2023] [Indexed: 04/13/2023] Open
Abstract
Cell surface properties of microorganisms provide abundant information for their physiological status and fate choice. However, current methods for analyzing cell surface properties require labeling or fixation, which can alter the cell activity. This study establishes a label-free, rapid, noninvasive, and quantitative analysis of cell surface properties, including the presence and the dimension of epistructure, down to the single-cell level and at the nanometer scale. Simultaneously, electrorotation provides dielectric properties of intracellular contents. With the combined information, the growth phase of microalgae cell could be identified. The measurement is based on electrorotation of single cells and an electrorotation model accounting for the surface properties is developed to properly interpret experimental data. The epistructure length measured by electrorotation was validated by SEM. The measurement accuracy was satisfactory in particular in the case of microscale epistructures in the exponential phase and nanoscale epistructures in the stationary phase. However, the measurement accuracy for nanoscale epistructures on cells in the exponential phase was offset by the effect of thick double layer. Lastly, a diversity in epistructure length distinguished exponential phase from stationary phase.
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Affiliation(s)
- Yu-Sheng Lin
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan; Université Paris Saclay, ENS Paris Saclay, CNRS Institut d'Alembert, SATIE, Gif sur Yvette, France
| | - Chen-Li Sun
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
| | - Sung Tsang
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
| | - Sakina Bensalem
- Université Paris Saclay, ENS Paris Saclay, CNRS Institut d'Alembert, LUMIN, Gif sur Yvette, France
| | - Bruno Le Pioufle
- Université Paris Saclay, ENS Paris Saclay, CNRS Institut d'Alembert, LUMIN, Gif sur Yvette, France
| | - Hsiang-Yu Wang
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan.
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2
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Tanimoto IMF, Cressiot B, Greive SJ, Le Pioufle B, Bacri L, Pelta J. Focus on using nanopore technology for societal health, environmental, and energy challenges. Nano Res 2022; 15:9906-9920. [PMID: 35610982 PMCID: PMC9120803 DOI: 10.1007/s12274-022-4379-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/11/2022] [Accepted: 03/30/2022] [Indexed: 06/15/2023]
Abstract
With an increasing global population that is rapidly ageing, our society faces challenges that impact health, environment, and energy demand. With this ageing comes an accumulation of cellular changes that lead to the development of diseases and susceptibility to infections. This impacts not only the health system, but also the global economy. As the population increases, so does the demand for energy and the emission of pollutants, leading to a progressive degradation of our environment. This in turn impacts health through reduced access to arable land, clean water, and breathable air. New monitoring approaches to assist in environmental control and minimize the impact on health are urgently needed, leading to the development of new sensor technologies that are highly sensitive, rapid, and low-cost. Nanopore sensing is a new technology that helps to meet this purpose, with the potential to provide rapid point-of-care medical diagnosis, real-time on-site pollutant monitoring systems to manage environmental health, as well as integrated sensors to increase the efficiency and storage capacity of renewable energy sources. In this review we discuss how the powerful approach of nanopore based single-molecule, or particle, electrical promises to overcome existing and emerging societal challenges, providing new opportunities and tools for personalized medicine, localized environmental monitoring, and improved energy production and storage systems.
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Affiliation(s)
- Izadora Mayumi Fujinami Tanimoto
- LAMBE, CNRS, Univ Evry, Université Paris-Saclay, 91025 Evry-Courcouronnes, France
- LuMIn, CNRS, Institut d’Alembert, ENS Paris-Saclay, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | | | | | - Bruno Le Pioufle
- LuMIn, CNRS, Institut d’Alembert, ENS Paris-Saclay, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Laurent Bacri
- LAMBE, CNRS, Univ Evry, Université Paris-Saclay, 91025 Evry-Courcouronnes, France
| | - Juan Pelta
- LAMBE, CNRS, Univ Evry, Université Paris-Saclay, 91025 Evry-Courcouronnes, France
- LAMBE, CNRS, CY Cergy Paris Université, 95000 Cergy, France
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3
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Xu T, Lizarralde-Iragorri MA, Roman J, Martincic E, Brousse V, Nemer WE, Francais O, Pioufle BL. Reusable Device for the Electrical Sensing of Red Blood Cells Rigidity Abnormalities, Based on A Reversible Microfluidic Assembly . Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:1168-1171. [PMID: 34891495 DOI: 10.1109/embc46164.2021.9630178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Combining microfluidic with sensors enables the development of smart analysis systems. Microelectrodes can be embedded within the microchannels network for electrical sensing, electrochemical analysis or impedance measurement. However, at the laboratory scale, the assembly between microfluidic network and electrical parts on the substrate remains an issue. This paper first discusses the principles of biosensing, and then proposes an original device integrating microfluidics with microelectrodes for the analysis of red blood cells transit in a structure mimicking micro-vascular flow. Some results concerning red blood cells discrimination of sickle cell disease are discussed with statistical analysis.Clinical relevance- This paper introduces a portable reusable device combining a microfluidic blood vessel mimicking network with microelectrodes for the biosensing of RBC.
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Lizarralde-Iragorri MA, Lefevre SD, Cochet S, El Hoss S, Brousse V, Filipe A, Dussiot M, Azouzi S, Le Van Kim C, Rodrigues-Lima F, Français O, Le Pioufle B, Klei T, van Bruggen R, El Nemer W. Oxidative stress activates red cell adhesion to laminin in sickle cell disease. Haematologica 2021; 106:2478-2488. [PMID: 32855277 PMCID: PMC8409043 DOI: 10.3324/haematol.2020.261586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/12/2020] [Indexed: 12/22/2022] Open
Abstract
Vaso-occlusive crises are the hallmark of sickle cell disease (SCD). They are believed to occur in two steps, starting with adhesion of deformable low-dense red blood cells (RBCs), or other blood cells such as neutrophils, to the wall of post-capillary venules, followed by trapping of the denser RBCs or leukocytes in the areas of adhesion because of reduced effective lumen-diameter. In SCD, RBCs are heterogeneous in terms of density, shape, deformability and surface proteins, which accounts for the differences observed in their adhesion and resistance to shear stress. Sickle RBCs exhibit abnormal adhesion to laminin mediated by Lu/BCAM protein at their surface. This adhesion is triggered by Lu/BCAM phosphorylation in reticulocytes but such phosphorylation does not occur in mature dense RBCs despite firm adhesion to laminin. In this study, we investigated the adhesive properties of sickle RBC subpopulations and addressed the molecular mechanism responsible for the increased adhesion of dense RBCs to laminin in the absence of Lu/BCAM phosphorylation. We provide evidence for the implication of oxidative stress in post-translational modifications of Lu/BCAM that impact its distribution and cis-interaction with glycophorin C at the cell surface activating its adhesive function in sickle dense RBCs.
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Affiliation(s)
- Maria Alejandra Lizarralde-Iragorri
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | - Sophie D. Lefevre
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | - Sylvie Cochet
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | - Sara El Hoss
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | - Valentine Brousse
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
- Service de Pédiatrie Générale et Maladies Infectieuses, Hôpital Universitaire Necker Enfants Malades, Paris, France
| | - Anne Filipe
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
- Université de Paris, BFA, UMR 8251, CNRS, Paris, France
| | - Michael Dussiot
- Institut Imagine, INSERM U1163, CNRS UMR8254, Université Paris Descartes, Hôpital Necker Enfants Malades, Paris, France
| | - Slim Azouzi
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | - Caroline Le Van Kim
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
| | | | - Olivier Français
- ESYCOM, Université Gustave Eiffel, CNRS UMR 9007, ESIEE Paris, Marne-la-Vallee, France
| | - Bruno Le Pioufle
- Université Paris-Saclay, ENS Paris-Saclay, CNRS Institut d'Alembert, LUMIN, Gif sur Yvette, France
| | - Thomas Klei
- Department of Blood Cell Research, Sanquin Research and Lab Services and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Robin van Bruggen
- Department of Blood Cell Research, Sanquin Research and Lab Services and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Wassim El Nemer
- Université de Paris, UMR S1134, BIGR, INSERM, Paris, France
- Institut National de la Transfusion Sanguine, Paris, France
- Laboratoire d’Excellence GR-Ex, Paris, France
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5
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Fujinami Tanimoto IM, Cressiot B, Jarroux N, Roman J, Patriarche G, Le Pioufle B, Pelta J, Bacri L. Selective target protein detection using a decorated nanopore into a microfluidic device. Biosens Bioelectron 2021; 183:113195. [PMID: 33857755 DOI: 10.1016/j.bios.2021.113195] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 01/26/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 10/21/2022]
Abstract
Solid-state nanopores provide a powerful tool to electrically analyze nanoparticles and biomolecules at single-molecule resolution. These biosensors need to have a controlled surface to provide information about the analyte. Specific detection remains limited due to nonspecific interactions between the molecules and the nanopore. Here, a polymer surface modification to passivate the membrane is performed. This functionalization improves nanopore stability and ionic conduction. Moreover, one can control the nanopore diameter and the specific interactions between protein and pore surface. The effect of ionic strength and pH are probed. Which enables control of the electroosmotic driving force and dynamics. Furthermore, a study of polymer chain structure and permeability in the pore are carried out. The nanopore chip is integrated into a microfluidic device to ease its handling. Finally, a discussion of an ionic conductance model through a permeable crown along the nanopore surface is elucidated. The proof of concept is demonstrated by the capture of free streptavidin by the biotins grafted into the nanopore. In the future, this approach could be used for virus diagnostic, nanoparticle or biomarker sensing.
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Affiliation(s)
- Izadora Mayumi Fujinami Tanimoto
- Université Paris-Saclay, Univ Evry, CNRS, LAMBE, 91025, Evry-Courcouronnes, France; Université Paris-Saclay, ENS Paris-Saclay, CNRS, LuMIn, Institut d'Alembert, 91190, Gif-sur-Yvette, France
| | | | - Nathalie Jarroux
- Université Paris-Saclay, Univ Evry, CNRS, LAMBE, 91025, Evry-Courcouronnes, France
| | - Jean Roman
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, LuMIn, Institut d'Alembert, 91190, Gif-sur-Yvette, France
| | - Gilles Patriarche
- Université Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120, Palaiseau, France
| | - Bruno Le Pioufle
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, LuMIn, Institut d'Alembert, 91190, Gif-sur-Yvette, France.
| | - Juan Pelta
- Université Paris-Saclay, Univ Evry, CNRS, LAMBE, 91025, Evry-Courcouronnes, France.
| | - Laurent Bacri
- Université Paris-Saclay, Univ Evry, CNRS, LAMBE, 91025, Evry-Courcouronnes, France.
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6
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Lin YS, Tsang S, Bensalem S, Tsai CC, Chen SJ, Sun CL, Lopes F, Le Pioufle B, Wang HY. Electrorotation of single microalgae cells during lipid accumulation for assessing cellular dielectric properties and total lipid contents. Biosens Bioelectron 2020; 173:112772. [PMID: 33232922 DOI: 10.1016/j.bios.2020.112772] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 09/18/2020] [Accepted: 10/26/2020] [Indexed: 11/29/2022]
Abstract
Photosynthetic microalgae not only perform fixation of carbon dioxide but also produce valuable byproducts such as lipids and pigments. However, due to the lack of effective tools for rapid and noninvasive analysis of microalgal cellular contents, the efficiency of strain screening and culture optimizing is usually quite low. This study applied single-cell electrorotation on Scenedesmus abundans to assess cellular dielectric properties during lipid accumulation and to promptly quantify total cellular contents. The experimental electrorotation spectra were fitted with the double-shell ellipsoidal model, which considered varying cell wall thickness, to obtain the dielectric properties of cellular compartments. When the amount of total lipids increased from 15.3 wt% to 33.8 wt%, the conductivity and relative permittivity of the inner core (composed of the cytoplasm, lipid droplets, and nucleus) decreased by 21.7% and 22.5%, respectively. These dielectric properties were further used to estimate the total cellular lipid contents by the general mixing formula, and the estimated values agreed with those obtained by weighing dry biomass and extracted lipids with an error as low as 0.22 wt%. Additionally, the conductivity and relative permittivity of cell wall increased during nitrogen-starvation conditions, indicating the thickening of cell wall, which was validated by the transmission electron microscopy.
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Affiliation(s)
- Yu-Sheng Lin
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013, Taiwan; ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
| | - Sung Tsang
- Department of Mechanical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Sakina Bensalem
- ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, Université Paris-Saclay, Gif-sur-Yvette, 91190, France; CentraleSupélec, LGPM, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
| | - Ching-Chu Tsai
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 10617, Taiwan
| | - Shiang-Jiuun Chen
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, 10617, Taiwan
| | - Chen-Li Sun
- Department of Mechanical Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Filipa Lopes
- CentraleSupélec, LGPM, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
| | - Bruno Le Pioufle
- ENS Paris-Saclay, CNRS, Institut d'Alembert, LUMIN, Université Paris-Saclay, Gif-sur-Yvette, 91190, France
| | - Hsiang-Yu Wang
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu, 30013, Taiwan.
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7
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Xu T, Lizarralde-Iragorri MA, Roman J, Ghasemi R, Lefèvre JP, Martincic E, Brousse V, Français O, El Nemer W, Le Pioufle B. Characterization of red blood cell microcirculatory parameters using a bioimpedance microfluidic device. Sci Rep 2020; 10:9869. [PMID: 32555353 PMCID: PMC7299978 DOI: 10.1038/s41598-020-66693-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 05/26/2020] [Indexed: 02/07/2023] Open
Abstract
This paper describes the use of a microfluidic device comprising channels with dimensions mimicking those of the smallest capillaries found in the human microcirculation. The device structure, associated with a pair of microelectrodes, provides a tool to electrically measure the transit time of red blood cells through fine capillaries and thus generate an electrical signature for red blood cells in the context of human erythroid genetic disorders, such as sickle cell disease or hereditary spherocytosis, in which red cell elasticity is altered. Red blood cells from healthy individuals, heated or not, and red blood cells from patients with sickle cell disease or hereditary spherocytosis where characterized at a single cell level using our device. Transit time and blockade amplitude recordings were correlated with microscopic observations, and analyzed. The link between the electrical signature and the mechanical properties of the red blood cells is discussed in the paper, with greater transit time and modified blockade amplitude for heated and pathological red blood cells as compared to those from healthy individuals. Our single cell-based methodology offers a new and complementary approach to characterize red cell mechanical properties in human disorders under flow conditions mimicking the microcirculation.
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Affiliation(s)
- Tieying Xu
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, F-91190, Gif sur Yvette, France
| | - Maria A Lizarralde-Iragorri
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015, Paris, France
- Institut National de Transfusion Sanguine, F-75015, Paris, France
- Laboratoire d'Excellence GR-Ex, F-75013, Paris, France
| | - Jean Roman
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, F-91190, Gif sur Yvette, France
| | - Rasta Ghasemi
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, Institut d'Alembert, F-91190, Gif sur Yvette, France
| | - Jean-Pierre Lefèvre
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, Institut d'Alembert, F-91190, Gif sur Yvette, France
- CNAM, F-75003, Paris, France
| | - Emile Martincic
- Centre de Nanosciences et de Nanotechnologies C2N, CNRS, Université Paris-Sud, Université Paris-Saclay, F-91120, Palaiseau, France
| | - Valentine Brousse
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015, Paris, France
- Institut National de Transfusion Sanguine, F-75015, Paris, France
- Laboratoire d'Excellence GR-Ex, F-75013, Paris, France
- Service de Pédiatrie Générale et Maladies Infectieuses, Hôpital Universitaire Necker Enfants Malades, F-75015, Paris, France
| | - Olivier Français
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, F-91190, Gif sur Yvette, France
- ESYCOM, Univ Gustave Eiffel, CNRS UMR 9007, ESIEE Paris, F-77454, Marne-la-Vallee, France
| | - Wassim El Nemer
- Université de Paris, UMR_S1134, BIGR, Inserm, F-75015, Paris, France
- Institut National de Transfusion Sanguine, F-75015, Paris, France
- Laboratoire d'Excellence GR-Ex, F-75013, Paris, France
| | - Bruno Le Pioufle
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, F-91190, Gif sur Yvette, France.
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, Institut d'Alembert, LUMIN, F-91190, Gif sur Yvette, France.
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8
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Midelet C, Le Pioufle B, Werts MHV. Brownian Motion and Large Electric Polarizabilities Facilitate Dielectrophoretic Capture of Sub‐200 nm Gold Nanoparticles in Water. Chemphyschem 2019; 20:3354-3365. [DOI: 10.1002/cphc.201900662] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/13/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Clyde Midelet
- Univ RennesCNRS, SATIE-UMR 8029 35000 Rennes France
- École normale supérieure de RennesSATIE (CNRS UMR 8029) Av. R. Schuman, Campus de Ker Lann 35170 Bruz France
| | - Bruno Le Pioufle
- Ecole normale supérieure Paris-SaclaySATIE (CNRS UMR 8029), Institut d'Alembert 94235 Cachan France
| | - Martinus H. V. Werts
- Univ RennesCNRS, SATIE-UMR 8029 35000 Rennes France
- École normale supérieure de RennesSATIE (CNRS UMR 8029) Av. R. Schuman, Campus de Ker Lann 35170 Bruz France
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9
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Trainito CI, Sweeney DC, Čemažar J, Schmelz EM, Français O, Le Pioufle B, Davalos RV. Characterization of sequentially-staged cancer cells using electrorotation. PLoS One 2019; 14:e0222289. [PMID: 31536516 PMCID: PMC6752768 DOI: 10.1371/journal.pone.0222289] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 08/26/2019] [Indexed: 12/21/2022] Open
Abstract
The identification and separation of cells from heterogeneous populations is critical to the diagnosis of diseases. Label-free methodologies in particular have been developed to manipulate individual cells using properties such as density and morphology. The electrical properties of malignant cells, including the membrane capacitance and cytoplasmic conductivity, have been demonstrated to be altered compared to non-malignant cells of similar origin. Here, we exploit these changes to characterize individual cells in a sequentially-staged in vitro cancer model using electrorotation (EROT)—the rotation of a cell induced by a rotating electric field. Using a microfabricated device, a dielectrophoretic force to suspend cells while measuring their angular velocity resulting from an EROT force applied at frequencies between 3 kHz to 10 MHz. We experimentally determine the EROT response for cells at three stages of malignancy and analyze the resultant spectra by considering models that include the effect of the cell membrane alone (single-shell model) and the combined effect of the cell membrane and nucleus (double-shell model). We find that the cell membrane is largely responsible for a given cell’s EROT response between 3 kHz and 10 MHz. Our results also indicate that membrane capacitance, membrane conductance, and cytoplasmic conductivity increase with an increasingly malignant phenotype. Our results demonstrate the potential of using electrorotation as a means making of non-invasive measurements to characterize the dielectric properties of cancer cells.
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Affiliation(s)
| | - Daniel C. Sweeney
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Jaka Čemažar
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Eva M. Schmelz
- Department of Human Nutrition, Food, and Exercise, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Olivier Français
- CNRS SATIE Institut d’Alembert ENS Paris Saclay, France
- ESIEE-Paris, ESYCOM (FRE 2028), UPE, Noisy-Le-Grand, France
| | | | - Rafael V. Davalos
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, Virginia, United States of America
- * E-mail:
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Bodénès P, Bensalem S, Français O, Pareau D, Le Pioufle B, Lopes F. Inducing reversible or irreversible pores in Chlamydomonas reinhardtii with electroporation: Impact of treatment parameters. ALGAL RES 2019. [DOI: 10.1016/j.algal.2018.11.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Roman J, Français O, Jarroux N, Patriarche G, Pelta J, Bacri L, Le Pioufle B. Solid-State Nanopore Easy Chip Integration in a Cheap and Reusable Microfluidic Device for Ion Transport and Polymer Conformation Sensing. ACS Sens 2018; 3:2129-2137. [PMID: 30284814 DOI: 10.1021/acssensors.8b00700] [Citation(s) in RCA: 17] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Solid-state nanopores have a huge potential in upcoming societal challenging applications in biotechnologies, environment, health, and energy. Nowadays, these sensors are often used within bulky fluidic devices that can cause cross-contaminations and risky nanopore chips manipulations, leading to a short experimental lifetime. We describe the easy, fast, and cheap innovative 3D-printer-helped protocol to manufacture a microfluidic device permitting the reversible integration of a silicon based chip containing a single nanopore. We show the relevance of the shape of the obtained channels thanks to finite elements simulations. We use this device to thoroughly investigate the ionic transport through the solid-state nanopore as a function of applied voltage, salt nature, and concentration. Furthermore, its reliability is proved through the characterization of a polymer-based model of protein-urea interactions on the nanometric scale thanks to a hairy nanopore.
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Affiliation(s)
- Jean Roman
- ENS Paris-Saclay, CNRS, Institut d’Alembert, SATIE, Université Paris-Saclay, Cachan F-94230, France
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay, Evry F-91025, France
| | - Olivier Français
- ESIEE-Paris, ESYCOM, Université Paris Est, Noisy-Le-Grand F-93160, France
| | - Nathalie Jarroux
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay, Evry F-91025, France
| | - Gilles Patriarche
- C2N, CNRS, Université Paris-Sud, Université Paris-Saclay, C2N-Marcoussis, Marcoussis F-91460, France
| | - Juan Pelta
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay, Evry F-91025, France
| | - Laurent Bacri
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay, Evry F-91025, France
| | - Bruno Le Pioufle
- ENS Paris-Saclay, CNRS, Institut d’Alembert, SATIE, Université Paris-Saclay, Cachan F-94230, France
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12
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Lizarralde Iragorri MA, El Hoss S, Brousse V, Lefevre SD, Dussiot M, Xu T, Ferreira AR, Lamarre Y, Silva Pinto AC, Kashima S, Lapouméroulie C, Covas DT, Le Van Kim C, Colin Y, Elion J, Français O, Le Pioufle B, El Nemer W. A microfluidic approach to study the effect of mechanical stress on erythrocytes in sickle cell disease. Lab Chip 2018; 18:2975-2984. [PMID: 30168832 DOI: 10.1039/c8lc00637g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The human red blood cell is a biconcave disc of 6-8 × 2 μm that is highly elastic. This capacity to deform enables it to stretch while circulating through narrow capillaries to ensure its main function of gas exchange. Red cell shape and deformability are altered in membrane disorders because of defects in skeletal or membrane proteins affecting protein-protein interactions. Red cell properties are also altered in other pathologies such as sickle cell disease. Sickle cell disease is a genetic hereditary disorder caused by a single point mutation in the β-globin gene generating sickle haemoglobin (HbS). Hypoxia drives HbS polymerisation that is responsible for red cell sickling and reduced deformability. The main clinical features of sickle cell disease are vaso-occlusive crises and haemolytic anaemia. Foetal haemoglobin (HbF) inhibits HbS polymerisation and positively impacts red cell survival in the circulation but the mechanism through which it exerts this action is not fully characterized. In this study, we designed a microfluidic biochip mimicking the dimensions of human capillaries to measure the impact of repeated mechanical stress on the survival of red cells at the single cell scale under controlled pressure. We show that mechanical stress is a critical parameter underlying intravascular haemolysis in sickle cell disease and that high intracellular levels of HbF protect against lysis. The biochip is a promising tool to address red cell deformability in pathological situations and to screen for molecules positively impacting this parameter in order to improve red cell survival in the circulation.
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Affiliation(s)
- Maria Alejandra Lizarralde Iragorri
- Biologie Intégrée du Globule Rouge UMR_S1134, Inserm, Univ. Paris Diderot, Sorbonne Paris Cité, Univ. de la Réunion, Univ. des Antilles, INTS, 6 rue Alexandre Cabanel, 75015 Paris, France.
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13
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Roman J, Le Pioufle B, Auvray L, Pelta J, Bacri L. From current trace to the understanding of confined media. Eur Phys J E Soft Matter 2018; 41:99. [PMID: 30159758 DOI: 10.1140/epje/i2018-11709-5] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
Nanopores constitute devices for the sensing of nano-objects such as ions, polymer chains, proteins or nanoparticles. We describe what information we can extract from the current trace. We consider the entrance of polydisperse chains into the nanopore, which leads to a conductance drop. We describe the detection of these current blockades according to their shape. Finally, we explain how data analysis can be used to enhance our understanding of physical processes in confined media.
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Affiliation(s)
- Jean Roman
- LAMBE, Univ Evry, CNRS, CEA, Université Paris-Saclay, F-91025, Evry, France
| | - Bruno Le Pioufle
- ENS Paris-Saclay, CNRS, Institut d'Alembert, SATIE, Université Paris-Saclay, F-94230, Cachan, France
| | - Loïc Auvray
- Matière et Systèmes Complexes, Université Paris Diderot/CNRS (UMR 7057), 75205, Paris, Cedex 13, France
| | - Juan Pelta
- LAMBE, Univ Evry, CNRS, CEA, Université Paris-Saclay, F-91025, Evry, France
| | - Laurent Bacri
- LAMBE, Univ Evry, CNRS, CEA, Université Paris-Saclay, F-91025, Evry, France.
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14
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Bensalem S, Lopes F, Bodénès P, Pareau D, Français O, Le Pioufle B. Understanding the mechanisms of lipid extraction from microalga Chlamydomonas reinhardtii after electrical field solicitations and mechanical stress within a microfluidic device. Bioresour Technol 2018; 257:129-136. [PMID: 29494840 DOI: 10.1016/j.biortech.2018.01.139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 05/12/2023]
Abstract
One way envisioned to overcome part of the issues biodiesel production encounters today is to develop a simple, economically viable and eco-friendly process for the extraction of lipids from microalgae. This study investigates the lipid extraction efficiency from the microalga Chlamydomonas reinhardtii as well as the underlying mechanisms. We propose a new methodology combining a pulsed electric field (PEF) application and mechanical stresses as a pretreatment to improve lipid extraction with solvents. Cells enriched in lipids are therefore submitted to electric field pulses creating pores on the cell membrane and then subjected to a mechanical stress by applying cyclic pressures on the cell wall (using a microfluidic device). Results showed an increase in lipid extraction when cells were pretreated by the combination of both methods. Microscopic observations showed that both pretreatments affect the cell structure. Finally, the dependency of solvent lipid extraction efficiency with the cell wall structure is discussed.
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Affiliation(s)
- Sakina Bensalem
- Ecole Normale Supérieure Paris Saclay, CNRS SATIE, Université Paris Saclay, 61 av du Pdt Wilson, 94230 Cachan, France; LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 rue Juliot Curie, 91190 Gif-sur-Yvette, France
| | - Filipa Lopes
- LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 rue Juliot Curie, 91190 Gif-sur-Yvette, France
| | - Pierre Bodénès
- Ecole Normale Supérieure Paris Saclay, CNRS SATIE, Université Paris Saclay, 61 av du Pdt Wilson, 94230 Cachan, France; LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 rue Juliot Curie, 91190 Gif-sur-Yvette, France
| | - Dominique Pareau
- LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 rue Juliot Curie, 91190 Gif-sur-Yvette, France
| | - Olivier Français
- ESIEE-Paris, ESYCOM EA 2552, Université Paris Est, 93160 Noisy Le Grand, France
| | - Bruno Le Pioufle
- Ecole Normale Supérieure Paris Saclay, CNRS SATIE, Université Paris Saclay, 61 av du Pdt Wilson, 94230 Cachan, France.
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15
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Bensalem S, Lopes F, Bodénès P, Pareau D, Français O, Le Pioufle B. Structural changes of Chlamydomonas reinhardtii cells during lipid enrichment and after solvent exposure. Data Brief 2018; 17:1283-1287. [PMID: 29845099 PMCID: PMC5966586 DOI: 10.1016/j.dib.2018.02.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 02/01/2018] [Accepted: 02/12/2018] [Indexed: 11/29/2022] Open
Abstract
Data are related to Confocal Laser Scanning Microscopy (CLSM) observations of lipid-enriched Chlamydomonas reinhardtii cells under different conditions. Firstly, the impact of stress conditions (nitrogen starvation) on the cell wall structure is assessed. Secondly is described the effect of solvents, in the context of lipid extraction, on the microalga's cell, particularly its lipid droplets, in the perspective of understanding the mechanisms behind solvent extraction of lipids. Furthermore, the role of the cell wall as a barrier to the solvent extraction action is highlighted.
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Affiliation(s)
- Sakina Bensalem
- CNRS, SATIE, Ecole Normale Supérieure Paris Saclay, Université Paris-Saclay, 61 av du Pdt Wilson, 94230 Cachan, France.,LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 Av. Joliot Curie, 91190 Gif-sur-Yvette, France
| | - Filipa Lopes
- LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 Av. Joliot Curie, 91190 Gif-sur-Yvette, France
| | - Pierre Bodénès
- CNRS, SATIE, Ecole Normale Supérieure Paris Saclay, Université Paris-Saclay, 61 av du Pdt Wilson, 94230 Cachan, France.,LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 Av. Joliot Curie, 91190 Gif-sur-Yvette, France
| | - Dominique Pareau
- LGPM, EA 4038, CentraleSupélec, Université Paris Saclay, 3 Av. Joliot Curie, 91190 Gif-sur-Yvette, France
| | - Olivier Français
- ESIEE-Paris, ESYCOM EA 2552, Université Paris Est, 93160 Noisy Le Grand, France
| | - Bruno Le Pioufle
- CNRS, SATIE, Ecole Normale Supérieure Paris Saclay, Université Paris-Saclay, 61 av du Pdt Wilson, 94230 Cachan, France
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16
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Roman J, Jarroux N, Patriarche G, Français O, Pelta J, Le Pioufle B, Bacri L. Functionalized Solid-State Nanopore Integrated in a Reusable Microfluidic Device for a Better Stability and Nanoparticle Detection. ACS Appl Mater Interfaces 2017; 9:41634-41640. [PMID: 29144721 DOI: 10.1021/acsami.7b14717] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Electrical detection based on single nanopores is an efficient tool to detect biomolecules, particles and study their morphology. Nevertheless the surface of the solid-state membrane supporting the nanopore should be better controlled. Moreover, nanopore should be integrated within microfluidic architecture to facilitate control fluid exchanges. We built a reusable microfluidic system integrating a decorated membran, rendering the drain and refill of analytes and buffers easier. This process enhances strongly ionic conductance of the nanopore and its lifetime. We highlight the reliability of this device by detecting gold nanorods and spherical proteins.
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Affiliation(s)
- Jean Roman
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay , Evry F-91025, France
| | - Nathalie Jarroux
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay , Evry F-91025, France
| | - Gilles Patriarche
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay, C2N-Marcoussis , Marcoussis 91460, France
| | - Olivier Français
- ESIEE-Paris, ESYCOM, University Paris Est , Cité Descartes BP99, Noisy-Le-Grand F-93160, France
| | - Juan Pelta
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay , Evry F-91025, France
| | | | - Laurent Bacri
- LAMBE, Université Evry, CNRS, CEA, Université Paris-Saclay , Evry F-91025, France
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17
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Sandor B, Marin M, Lapoumeroulie C, Rabaï M, Lefevre SD, Lemonne N, El Nemer W, Mozar A, Français O, Le Pioufle B, Connes P, Le Van Kim C. Effects of Poloxamer 188 on red blood cell membrane properties in sickle cell anaemia. Br J Haematol 2016; 173:145-9. [DOI: 10.1111/bjh.13937] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/04/2015] [Indexed: 01/04/2023]
Affiliation(s)
| | - Mickaël Marin
- Inserm UMR_S1134; Paris France
- Institut National de la Transfusion Sanguine; Paris France
- Laboratoire d'Excellence GR-Ex; Paris France
| | - Claudine Lapoumeroulie
- Inserm UMR_S1134; Paris France
- Institut National de la Transfusion Sanguine; Paris France
- Laboratoire d'Excellence GR-Ex; Paris France
| | | | - Sophie D. Lefevre
- Inserm UMR_S1134; Paris France
- Institut National de la Transfusion Sanguine; Paris France
- Laboratoire d'Excellence GR-Ex; Paris France
- Université Paris Diderot; Sorbonne Paris Cité; Paris France
| | | | - Wassim El Nemer
- Inserm UMR_S1134; Paris France
- Institut National de la Transfusion Sanguine; Paris France
- Laboratoire d'Excellence GR-Ex; Paris France
| | - Anaïs Mozar
- Laboratoire d'Excellence GR-Ex; Paris France
- Inserm; Université des Antilles et de la Guyane; 97159 Pointe-à-Pitre Guadeloupe
| | - Olivier Français
- Ecole Normale Supérieure de Cachan; CNRS; BIOMIS-SATIE; UMR 8029; Cachan France
| | - Bruno Le Pioufle
- Ecole Normale Supérieure de Cachan; CNRS; BIOMIS-SATIE; UMR 8029; Cachan France
| | - Philippe Connes
- Laboratoire d'Excellence GR-Ex; Paris France
- Inserm; Université des Antilles et de la Guyane; 97159 Pointe-à-Pitre Guadeloupe
- Ecole Normale Supérieure de Cachan; CNRS; BIOMIS-SATIE; UMR 8029; Cachan France
- Laboratoire CRIS EA647; Section “Vascular Biology and Red Blood Cell”; Université Claude Bernard Lyon 1; Lyon France
- Institut Universitaire de France; Paris France
| | - Caroline Le Van Kim
- Inserm UMR_S1134; Paris France
- Institut National de la Transfusion Sanguine; Paris France
- Laboratoire d'Excellence GR-Ex; Paris France
- Université Paris Diderot; Sorbonne Paris Cité; Paris France
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18
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Trainito CI, Français O, Le Pioufle B. Monitoring the permeabilization of a single cell in a microfluidic device, through the estimation of its dielectric properties based on combined dielectrophoresis and electrorotation in situ experiments. Electrophoresis 2015; 36:1115-22. [PMID: 25641658 DOI: 10.1002/elps.201400482] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 10/20/2014] [Revised: 01/01/2015] [Accepted: 01/19/2015] [Indexed: 11/08/2022]
Abstract
The electric field is commonly used in microdevices to handle, treat, or monitor living cells for various biological or biomedical applications (cells electrofusion, gene electrotransfer, drugs injection, cell sorting, …). Dielectrophoresis (DEP) forces, using stationary waves (conventional DEP) or traveling waves, are widely used for the cell handling or sorting. Electrorotation, which is induced by a rotating electrical field, is used for the determination of cell dielectric parameters. The application of pulsed electric field (PEF) results in the cell membrane permeabilization that might allow the transfer of various molecules in the cytoplasm. In this paper, we propose a method to monitor in situ the level of electropermeabilization induced by PEF application on a single cell, by combining the dielectrophoresis force and the electrorotation torque within a microfluidic device. The method was experimented on two different cell lines (human leukemic T-cell lymphoblast and murine melanoma cell): a single cell is captured by dielectrophoresis while its dielectric properties (both permittivity and conductivity of cytoplasm and membrane) are estimated thanks to a rotating electric field, which is applied simultaneously. The permeabilization effect of PEF, applied to the single cell trapped in such conditions in the biodevice, could be monitored by the estimation of its dielectric properties before and after pulse application.
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19
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Picot J, Ndour PA, Lefevre SD, El Nemer W, Tawfik H, Galimand J, Da Costa L, Ribeil JA, de Montalembert M, Brousse V, Le Pioufle B, Buffet P, Le Van Kim C, Français O. A biomimetic microfluidic chip to study the circulation and mechanical retention of red blood cells in the spleen. Am J Hematol 2015; 90:339-45. [PMID: 25641515 DOI: 10.1002/ajh.23941] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 01/06/2015] [Accepted: 01/08/2015] [Indexed: 01/21/2023]
Abstract
Red blood cells (RBCs) are deformable and flow through vessels narrower than their own size. Their deformability is most stringently challenged when they cross micrometer-wide slits in the spleen. In several inherited or acquired RBC disorders, blockade of small vessels by stiff RBCs can trigger organ damage, but a functional spleen is expected to clear these abnormal RBCs from the circulation before they induce such complications. We analyzed flow behavior of RBCs in a microfluidic chip that replicates the mechanical constraints imposed on RBCs as they cross the human spleen. Polymer microchannels obtained by soft lithography with a hydraulic diameter of 25 μm drove flow into mechanical filtering units where RBCs flew either slowly through 5- to 2-μm-wide slits or rapidly along 10-μm-wide channels, these parallel paths mimicking the splenic microcirculation. Stiff heated RBCs accumulated in narrow slits seven times more frequently than normal RBCs infused simultaneously. Stage-dependent retention of Plasmodium falciparum-infected RBCs was also observed in these slits. We also analyzed RBCs from patients with hereditary spherocytosis and observed retention for those having the most altered mechanical properties as determined by ektacytometry. Thus, in keeping with previous observations in vivo and ex vivo, the chip successfully discriminated poorly deformable RBCs based on their distinct mechanical properties and on the intensity of the cell alteration. Applications to the exploration of the pathogenesis of malaria, hereditary spherocytosis, sickle cell disease and other RBC disorders are envisioned.
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Affiliation(s)
- Julien Picot
- Institut National De La Transfusion Sanguine; Paris F-75739 France
- Inserm, UMR_S1134; Paris France F-75739
- Université Paris Diderot; Sorbonne Paris Cité Paris France
- Laboratory of Excellence GR-Ex; Paris France
| | - Papa Alioune Ndour
- Laboratory of Excellence GR-Ex; Paris France
- Inserm; U1135/Paris 6 Paris France F-75634
| | - Sophie D. Lefevre
- Institut National De La Transfusion Sanguine; Paris F-75739 France
- Inserm, UMR_S1134; Paris France F-75739
- Université Paris Diderot; Sorbonne Paris Cité Paris France
- Laboratory of Excellence GR-Ex; Paris France
| | - Wassim El Nemer
- Institut National De La Transfusion Sanguine; Paris F-75739 France
- Inserm, UMR_S1134; Paris France F-75739
- Université Paris Diderot; Sorbonne Paris Cité Paris France
- Laboratory of Excellence GR-Ex; Paris France
| | - Harvey Tawfik
- SATIE, CNRS UMR8029, Ecole Normale Supérieure De Cachan; Cachan France F-94235
| | - Julie Galimand
- Laboratory of Excellence GR-Ex; Paris France
- AP-HP; Service Hématologie Biologique; Hôpital R, Debré; Paris France F-75935
| | - Lydie Da Costa
- Université Paris Diderot; Sorbonne Paris Cité Paris France
- Laboratory of Excellence GR-Ex; Paris France
- AP-HP; Service Hématologie Biologique; Hôpital R, Debré; Paris France F-75935
- Inserm; U1149, Paris 7 Paris France F-75018
| | - Jean-Antoine Ribeil
- Laboratory of Excellence GR-Ex; Paris France
- Inserm; UMR1163 Paris France F-75743
- Université Paris Descartes; Sorbonne Paris Cité, Paris France
- Biotherapy Department; Hôpital Universitaire Necker Enfants Malades, APHP; Paris France
| | - Mariane de Montalembert
- Université Paris Descartes; Sorbonne Paris Cité, Paris France
- Reference Centre for Sickle Cell Disease; Pediatric Department; Hôpital Universitaire Necker Enfants Malades, APHP; Paris France
| | - Valentine Brousse
- Institut National De La Transfusion Sanguine; Paris F-75739 France
- Inserm, UMR_S1134; Paris France F-75739
- Université Paris Diderot; Sorbonne Paris Cité Paris France
- Laboratory of Excellence GR-Ex; Paris France
- Université Paris Descartes; Sorbonne Paris Cité, Paris France. Reference Centre for Sickle Cell Disease; Pediatric Department; Hôpital Universitaire Necker Enfants Malades, APHP; Paris France
| | - Bruno Le Pioufle
- SATIE, CNRS UMR8029, Ecole Normale Supérieure De Cachan; Cachan France F-94235
| | - Pierre Buffet
- Laboratory of Excellence GR-Ex; Paris France
- Inserm; U1135/Paris 6 Paris France F-75634
| | - Caroline Le Van Kim
- Institut National De La Transfusion Sanguine; Paris F-75739 France
- Inserm, UMR_S1134; Paris France F-75739
- Université Paris Diderot; Sorbonne Paris Cité Paris France
- Laboratory of Excellence GR-Ex; Paris France
| | - Olivier Français
- SATIE, CNRS UMR8029, Ecole Normale Supérieure De Cachan; Cachan France F-94235
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Sieskind R, Trainito C, Français O, Le Pioufle B. Microsystème dédié à l’étude de la polarisation diélectrique de microparticules dans le cadre de formation master recherche : application au micropositionnement 3D de cellules par force de diélectrophorèse. ACTA ACUST UNITED AC 2015. [DOI: 10.1051/j3ea/2015007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Hamdi FS, Français O, Subra F, Dufour-Gergam E, Le Pioufle B. Microarray of non-connected gold pads used as high density electric traps for parallelized pairing and fusion of cells. Biomicrofluidics 2013; 7:44101. [PMID: 24404035 PMCID: PMC3716780 DOI: 10.1063/1.4813062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 06/21/2013] [Indexed: 05/28/2023]
Abstract
Cell fusion consists of inducing the formation of a hybridoma cell containing the genetic properties of the progenitor cells. Such an operation is usually performed chemically or electrically. The latter method, named electrofusion, is considered as having a strong potential, due to its efficiency and non-toxicity, but deserves further investigations prior to being applicable for key applications like antibody production and cancer immunotherapy. Indeed, to envision such applications, a high amount of hybrid cells is needed. In this context, we present in this paper a device for massive cell pairing and electrofusion, using a microarray of non-connected conductive pads. The electrofusion chamber--or channel--exposes cells to an inhomogeneous electric field, caused by the pads array, enabling the trapping and pairing of cells with dielectrophoresis (DEP) forces prior to electrofusion. Compared to a mechanical trapping, such electric trapping is fully reversible (on/off handling). The DEP force is contactless and thus eases the release of the produced hybridoma. Moreover, the absence of wire connections on the pads permits the high density trapping and electrofusion of cells. In this paper, the electric field mapping, the effect of metallic pads thickness, and the transmembrane potential of cells are studied based on a numerical model to optimize the device. Electric calculations and experiments were conducted to evaluate the trapping force. The structure was finally validated for cell pairing and electrofusion of arrays of cells. We believe that our approach of fully electric trapping with a simple structure is a promising method for massive production of electrofused hybridoma.
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Affiliation(s)
- Feriel S Hamdi
- Ecole Normale Supérieure de Cachan, CNRS, SATIE, UMR 8029, Cachan, France ; Univ Paris-Sud, CNRS, Institut d'Electronique Fondamentale, UMR 8622, Orsay, France
| | - Olivier Français
- Ecole Normale Supérieure de Cachan, CNRS, SATIE, UMR 8029, Cachan, France
| | - Frederic Subra
- Ecole Normale Supérieure de Cachan, CNRS, LBPA, UMR 8113, Cachan, France
| | | | - Bruno Le Pioufle
- Ecole Normale Supérieure de Cachan, CNRS, SATIE, UMR 8029, Cachan, France
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Bisceglia E, Cubizolles M, Mallard F, Vinet F, Français O, Le Pioufle B. Micro-organism extraction from biological samples using DEP forces enhanced by osmotic shock. Lab Chip 2013; 13:901-9. [PMID: 23306307 DOI: 10.1039/c2lc41128h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
On the road towards efficient diagnostics of infectious diseases, sample preparation is considered as the key step and remains a real technical challenge. Finding new methods for extraction of micro-organisms from a complex biological sample remains a major challenge prior to pathogen detection and analysis. This paper reports a new technique for capturing and isolating micro-organisms from a complex sample. To achieve the segregation of pathogens and blood cells, dielectrophoretic forces applied to bioparticles previously subjected to an osmotic shock are successfully implemented within a dedicated microfluidic device. Our device involves an electrode array of interdigitated electrodes, coated with an insulating layer, to minimize electrochemical reactions with the electrolyte and to enable long-time use. The electric field intensity inside the device is optimized, considering the insulating layer, for a given frequency bandwidth, enabling the separation of bioparticles by dielectrophoretic forces. Our predictions are based on analytical models, consistent with numerical simulations (using COMSOL Multiphysics) and correlated to experimental results. The method and device have been shown to extract different types of micro-organisms spiked in a blood cell sample. We strongly believe that this new separation approach may open the way towards a simple device for pathogen extraction from blood and more generally complex samples, with potential advantages of genericness and simplicity.
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Affiliation(s)
- Emilie Bisceglia
- Department of microTechnology for Biology and Health, CEA LETI-Minatec, Grenoble, France
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Wang W, Monlezun L, Picard M, Benas P, Français O, Broutin I, Le Pioufle B. Activity monitoring of functional OprM using a biomimetic microfluidic device. Analyst 2012; 137:847-52. [PMID: 22215439 DOI: 10.1039/c2an16007b] [Citation(s) in RCA: 12] [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] [Indexed: 01/15/2023]
Abstract
This paper describes the fabrication and use of a biomimetic microfluidic device for the monitoring of a functional porin reconstituted within a miniaturized suspended artificial bilayer lipid membrane (BLM). Such a microfluidic device allows for (1) fluidic and electrical access to both sides of the BLM and (2) reproducible membrane protein insertion and long-term electrical monitoring of its conductance (G(i)), thanks to the miniaturization of the BLM. We demonstrate here for the first time the feasibility to insert a large trans-membrane protein through its β-barrel, and monitor its functional activity for more than 1 hour (limited by buffer evaporation). In this paper, we specifically used our device for the monitoring of OprM, a bacterial efflux channel involved in the multidrug resistance of the bacteria Pseudomonas aeruginosa. Sub-steps of the OprM channel conductance were detected during the electrical recordings within our device, which might be due to oscillations between several structural conformations (sub-states) adopted by the protein, as part of its opening mechanism. This work is a first step towards the establishment of a genuine platform dedicated to the investigation of bacterial proteins under reconstituted conditions, a very promising tool for the screening of new inhibitors against bacterial channels involved in drug resistance.
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Affiliation(s)
- Wei Wang
- SATIE, UMR 8029 CNRS, Ecole Normale Supérieure de Cachan, 61 Avenue du Président Wilson, 94235, Cachan Cedex, France
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Breton M, Prével G, Audibert JF, Pansu R, Tauc P, Pioufle BL, Français O, Fresnais J, Berret JF, Ishow E. Solvatochromic dissociation of non-covalent fluorescent organic nanoparticles upon cell internalization. Phys Chem Chem Phys 2011; 13:13268-76. [DOI: 10.1039/c1cp20877b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Osaki T, Suzuki H, Le Pioufle B, Takeuchi S. Multichannel simultaneous measurements of single-molecule translocation in alpha-hemolysin nanopore array. Anal Chem 2010; 81:9866-70. [PMID: 20000639 DOI: 10.1021/ac901732z] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a microarray system that enables simultaneous monitoring of multiple ionic currents through transmembrane alpha-hemolysin nanopores arrayed at bilayer lipid membranes. We applied the self-assembling ability of lipid molecules interfaced between an aqueous solution and organic solvent to induce bilayer membrane formation at a microfluidic device; the device consists of a hydrophobic polymer film that serves to suspend the lipid-containing solvent at micrometer-sized apertures as well as to separate the aqueous solution into two chambers. In this study, we confirmed that expeditious and reproducible bilayer formation is realized by control of the composition of the solvent, a mixture of n-decane and 1-hexanol, which permits simultaneous incorporation of the alpha-hemolysin nanopores to the membrane array. Monitoring the eight wells on the array at once, we obtained a maximum of four relevant, synchronous signals of translocating ionic current through the nanopores. The system was also able to detect translocation events of nucleic acid molecules through the pore via the profile of a blocked current, promising its potential for high-throughput applications.
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Affiliation(s)
- Toshihisa Osaki
- Institute of Industrial Science, The University of Tokyo, Japan
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Pham Van N, Villemejane J, Hamdi F, Mottet G, Dalmay C, Woytasik M, Martincic E, Dufour-Gergam E, Franşais O, Mir LM, Le Pioufle B. A high density microfluidic device for cell pairing and electrofusion. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proeng.2010.09.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Suzuki H, Pioufle BL, Takeuchi S. Ninety-six-well planar lipid bilayer chip for ion channel recording fabricated by hybrid stereolithography. Biomed Microdevices 2008. [DOI: 10.1007/s10544-008-9218-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Suzuki H, Pioufle BL, Takeuhci S. Ninety-six-well planar lipid bilayer chip for ion channel recording Fabricated by hybrid stereolithography. Biomed Microdevices 2008; 11:17-22. [DOI: 10.1007/s10544-008-9205-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Le Pioufle B, Suzuki H, Tabata KV, Noji H, Takeuchi S. Lipid Bilayer Microarray for Parallel Recording of Transmembrane Ion Currents. Anal Chem 2007; 80:328-32. [DOI: 10.1021/ac7016635] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bruno Le Pioufle
- LIMMS, CNRS-IIS, and CIRMM, IIS, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 Japan, SATIE, CNRS, ENS Cachan, 61 av Pdt Wilson 94235 Cachan, France, ISIR, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 Japan, and JST PRESTO, 5 Sanbancho, Chiyoda-Ku, Tokyo 102-0075, Japan
| | - Hiroaki Suzuki
- LIMMS, CNRS-IIS, and CIRMM, IIS, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 Japan, SATIE, CNRS, ENS Cachan, 61 av Pdt Wilson 94235 Cachan, France, ISIR, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 Japan, and JST PRESTO, 5 Sanbancho, Chiyoda-Ku, Tokyo 102-0075, Japan
| | - Kazuhito V. Tabata
- LIMMS, CNRS-IIS, and CIRMM, IIS, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 Japan, SATIE, CNRS, ENS Cachan, 61 av Pdt Wilson 94235 Cachan, France, ISIR, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 Japan, and JST PRESTO, 5 Sanbancho, Chiyoda-Ku, Tokyo 102-0075, Japan
| | - Hiroyuki Noji
- LIMMS, CNRS-IIS, and CIRMM, IIS, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 Japan, SATIE, CNRS, ENS Cachan, 61 av Pdt Wilson 94235 Cachan, France, ISIR, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 Japan, and JST PRESTO, 5 Sanbancho, Chiyoda-Ku, Tokyo 102-0075, Japan
| | - Shoji Takeuchi
- LIMMS, CNRS-IIS, and CIRMM, IIS, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 Japan, SATIE, CNRS, ENS Cachan, 61 av Pdt Wilson 94235 Cachan, France, ISIR, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047 Japan, and JST PRESTO, 5 Sanbancho, Chiyoda-Ku, Tokyo 102-0075, Japan
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Degenaar P, Pioufle BL, Griscom L, Tixier A, Akagi Y, Morita Y, Murakami Y, Yokoyama K, Fujita H, Tamiya E. A method for micrometer resolution patterning of primary culture neurons for SPM analysis. J Biochem 2001; 130:367-76. [PMID: 11530012 DOI: 10.1093/oxfordjournals.jbchem.a002995] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [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: 11/15/2022] Open
Abstract
In this work we present a method for ultra-fine patterning of primary culture neuron cell growth, which is compatible for scanning near-field optical atomic force microscopy (SNOAM) analysis. SNOAM uses near-field optics to break the fundamental diffraction limit imposed on normal microscopy. SNOAM can achieve sub-100 nm optical resolutions, but requires transparent, open substrates. The ability to do physiological measurements on patterns of neurons, combined with ultra high resolution optical and fluorescent analysis, is useful in the study of long-term potentiation. The patterning method consists of chemical guidance with an element of physical confinement and allows for ultra-fine patterning of neural growth on transparent glass substrates. Substrates consist of microfabricated perfluoropolymer barrier structures on glass. Poly-L-lysine was selectively deposited using a silicone-based microfluidic stencil aligned to the perfluoropolymer/glass substrate. Primary culture neurons were extracted from 8-day-old chicks and grown for 3 days to form good networks. This patterning system shows very specific growth with patterning separations down to the level of individual neurites. Fluorescent imaging was carried out on both cell viability during growth and immuno-tagged microtubule-associated proteins on the neurites. Neurons inside the patterned structures were imaged and analyzed with a tapping mode SNOAM.
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Affiliation(s)
- P Degenaar
- The School of Materials Science, Japan Advanced Institute of Science and Technology, Hokuriku, Asahidai, Tatsunokuchi, Ishikawa 923-1292, Japan.
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