Výsledky vyhledávání - "Jérôme F L Duval"

Akademický článek

Automated force volume image processing for biological samples.

Autor: Pavel Polyakov, Charles Soussen, Junbo Duan, Jérôme F L Duval, David Brie, Grégory Francius

Publikováno v: PLoS ONE, Vol 6, Iss 4, p e18887 (2011)

Atomic force microscopy (AFM) has now become a powerful technique for investigating on a molecular level, surface forces, nanomechanical properties of deformable particles, biomolecular interactions, kinetics, and dynamic processes. This paper specif

Externí odkaz: https://doaj.org/article/7fe4cf4f73a3440fae80b1cb664c3b0d

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Akademický článek

Bacterial surface appendages strongly impact nanomechanical and electrokinetic properties of Escherichia coli cells subjected to osmotic stress.

Autor: Grégory Francius, Pavel Polyakov, Jenny Merlin, Yumiko Abe, Jean-Marc Ghigo, Christophe Merlin, Christophe Beloin, Jérôme F L Duval

Publikováno v: PLoS ONE, Vol 6, Iss 5, p e20066 (2011)

The physicochemical properties and dynamics of bacterial envelope, play a major role in bacterial activity. In this study, the morphological, nanomechanical and electrohydrodynamic properties of Escherichia coli K-12 mutant cells were thoroughly inve

Externí odkaz: https://doaj.org/article/2f63864a09e048929942e1dbef89aa3a

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Akademický článek

The major surface-associated saccharides of Klebsiella pneumoniae contribute to host cell association.

Autor: Abigail Clements, Fabien Gaboriaud, Jérôme F L Duval, Jacinta L Farn, Adam W Jenney, Trevor Lithgow, Odilia L C Wijburg, Elizabeth L Hartland, Richard A Strugnell

Publikováno v: PLoS ONE, Vol 3, Iss 11, p e3817 (2008)

Analysing the pathogenic mechanisms of a bacterium requires an understanding of the composition of the bacterial cell surface. The bacterial surface provides the first barrier against innate immune mechanisms as well as mediating attachment to cells/

Externí odkaz: https://doaj.org/article/11efc418e1a9431eb651f3a786902b0d

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Akademický článek

Bacterial capsular polysaccharides with antibiofilm activity share common biophysical and electrokinetic properties

Autor: Joaquín Bernal-Bayard, Jérôme Thiebaud, Marina Brossaud, Audrey Beaussart, Céline Caillet, Yves Waldvogel, Laetitia Travier, Sylvie Létoffé, Thierry Fontaine, Bachra Rokbi, Philippe Talaga, Christophe Beloin, Noëlle Mistretta, Jérôme F. L. Duval, Jean-Marc Ghigo

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)

Abstract Bacterial biofilms are surface-attached communities that are difficult to eradicate due to a high tolerance to antimicrobial agents. The use of non-biocidal surface-active compounds to prevent the initial adhesion and aggregation of bacteria

Externí odkaz: https://doaj.org/article/15a02eff473f4deeb97f38ee69812f2c

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Akademický článek

Comparative Analysis of Cell Metabolic Activity Sensing by Escherichia coli rrnB P1-lux and Cd Responsive-Lux Biosensors: Time-Resolved Experiments and Mechanistic Modelling

Autor: Eva Delatour, Christophe Pagnout, Marie L. Zaffino, Jérôme F. L. Duval

Publikováno v: Biosensors, Vol 12, Iss 9, p 763 (2022)

Whole-cell bacterial sensors are used in medical/environmental applications to detect chemicals, and to assess medium toxicity or stress. Non-specific constitutive biosensors generally serve the latter purpose, whereas chemical detection is performed

Externí odkaz: https://doaj.org/article/2e8d43680fff4b76a523e1b0b9422f63

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Akademický článek

Exploiting Catabolite Repression and Stringent Response to Control Delay and Multimodality of Bioluminescence Signal by Metal Whole-Cell Biosensors: Interplay between Metal Bioavailability and Nutritional Medium Conditions

Autor: Eva Delatour, Christophe Pagnout, Marie Zaffino, Jérôme F. L. Duval

Publikováno v: Biosensors, Vol 12, Iss 5, p 327 (2022)

The time-dependent response of metal-detecting whole-cell luminescent bacterial sensors is impacted by metal speciation/bioavailability in solution. The comprehensive understanding of such connections requires the consideration of the bacterial energ

Externí odkaz: https://doaj.org/article/c1e22ae93d2149e6b49d3c7eb4167997

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Akademický článek

Surface Properties of Parabacteroides distasonis and Impacts of Stress-Induced Molecules on Its Surface Adhesion and Biofilm Formation Capacities

Autor: Jordan Chamarande, Lisiane Cunat, Céline Caillet, Laurence Mathieu, Jérôme F. L. Duval, Alain Lozniewski, Jean-Pol Frippiat, Corentine Alauzet, Catherine Cailliez-Grimal

Publikováno v: Microorganisms, Vol 9, Iss 8, p 1602 (2021)

The gut microbiota is a complex and dynamic ecosystem whose balance and homeostasis are essential to the host’s well-being and whose composition can be critically affected by various factors, including host stress. Parabacteroides distasonis causes

Externí odkaz: https://doaj.org/article/529de1ffdcd646b0b1bbdf8868c97cc3

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Osmotic stress and vesiculation as key mechanisms controlling bacterial sensitivity and resistance to TiO2 nanoparticles

Autor: Bénédicte Sohm, Angelina Razafitianamaharavo, Isabelle Bihannic, Jérôme F. L. Duval, Marc Offroy, Céline Caillet, Christophe Pagnout, Eva Delatour, Audrey Beaussart

Publikováno v: Communications Biology, Vol 4, Iss 1, Pp 1-15 (2021)
Communications Biology
Communications Biology, Nature Publishing Group, 2021, 4 (1), pp.678. ⟨10.1038/s42003-021-02213-y⟩

Toxicity mechanisms of metal oxide nanoparticles towards bacteria and underlying roles of membrane composition are still debated. Herein, the response of lipopolysaccharide-truncated Escherichia coli K12 mutants to TiO2 nanoparticles (TiO2NPs, exposu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45c93576e25ef987848fcfc4cea00afe
https://doaj.org/article/e14d58e79dab4489b8652cdbe62e1b45

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Controlled assembly of heterogeneous aggregates of clay, iron hydr(oxydes) and polysaccharide: Effects of preparation conditions

Autor: Renaud Gley, Isabelle Bihannic, Jérôme F. L. Duval, Céline Caillet, Emmanuelle Montargès-Pelletier, Yves Waldvogel, Jaafar Ghanbaja, Erwin A. Henry

Publikováno v: Applied Clay Science
Applied Clay Science, Elsevier, 2022, 216, pp.106340. ⟨10.1016/j.clay.2021.106340⟩

The preparation of well-defined organo-mineral assemblies under controlled conditions is required to improve our understanding of the formation and surface reactivity of micrometric aggregates, ubiquitous in soils and continental aquatic media. We ai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c415bea2a022a0f1a13aab608f8b8b29
https://hal.univ-lorraine.fr/hal-03456217

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Absolute and Relative Positioning of Natural Organic Matter Acid–Base Potentiometric Titration Curves: Implications for the Evaluation of the Density of Charged Reactive Sites

Autor: Marawit Tesfa, Jérôme F. L. Duval, Rémi Marsac, Aline Dia, Jose-Paulo Pinheiro

Publikováno v: Environmental Science and Technology
Environmental Science and Technology, 2022, 56 (14), pp.10494-10503. ⟨10.1021/acs.est.2c00828⟩
Environmental Science and Technology, American Chemical Society, 2022, 56 (14), pp.10494-10503. ⟨10.1021/acs.est.2c00828⟩

International audience; Potentiometric acid–base titration curves collected on humic (nano)particles as a function of pH and salt concentration reflect the electrostatics of the particles and the amount of chemical charges (Q) they carry. In turn,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d0bd257e54d7508e326a25d9fd7e07d
https://hal.univ-lorraine.fr/hal-03704908/document

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