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Microfluidity mapping using fluorescence correlation spectroscopy: A new way to investigate plasma membrane microorganization of living cells

Pascale Winckler 1 Aurélie Cailler 1 Régis Déturche 1 Pierre Jeannesson 2 Hamid Morjani 2 Rodolphe Jaffiol 1
1 LNIO - Laboratoire de Nanotechnologie et d'Instrumentation Optique
ICD - Institut Charles Delaunay
2 Unite Medicament Dynam Intracellulaire Architectu, CNRS, UFR Pharm
Abstract : Diffusion time distribution analysis has been employed to highlight the microfluidity fingerprint of plasma membrane of living cells. Diffusion time measurements were obtained through fluorescence correlation spectroscopy performed at the single cell level, over various eukaryotic cell lines (MCF7, LR73, KB3.1, MESSA and MDCKII). The nonsymmetric profile of the diffusion time distributions established experimentally, is discussed according to Monte Carlo simulations, which reproduce the diffusion of the fluorescent probe in heterogeneous membrane.
Keywords : Microdomain Membrane fluidity Plasma membrane organization Fluorescence spectroscopy Fluorescence correlation spectroscopy
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https://hal-utt.archives-ouvertes.fr/hal-02383196
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Submitted on : Wednesday, November 27, 2019 - 3:54:02 PM
Last modification on : Tuesday, January 28, 2020 - 1:14:14 PM

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Pascale Winckler, Aurélie Cailler, Régis Déturche, Pierre Jeannesson, Hamid Morjani, et al.. Microfluidity mapping using fluorescence correlation spectroscopy: A new way to investigate plasma membrane microorganization of living cells. Biochimica et Biophysica Acta:Biomembranes, Elsevier, 2012, 1818 (11), pp.2477-2485. ⟨10.1016/j.bbamem.2012.05.018⟩. ⟨hal-02383196⟩

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