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346 results on '"Fourati N"'

58. 36P Molecular subtypes in Tunisian breast cancer

Author

Frikha, M., primary, Zouari, S., additional, Fourati, N., additional, Kallel, M., additional, Elloumi, F., additional, Bahri, M., additional, Siala, W., additional, Boudawara, T., additional, Khanfir, A., additional, Mnejja, W., additional, and Daoud, J., additional

Published
2020
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76. Anthracene based surface acoustic wave sensors for picomolar detection of lead ions. Correlation between experimental results and DFT calculations

Author

Attia, G., primary, Rahali, S., additional, Teka, S., additional, Fourati, N., additional, Zerrouki, C., additional, Seydou, M., additional, Chehimi, S., additional, Hayouni, S., additional, Mbakidi, J.-P., additional, Bouquillon, S., additional, Majdoub, M., additional, and Chaabane, R. Ben, additional

Published
2018
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87. Towards a structural characterization of an epoxy based polymer using small-angle x-ray scattering.

Author

Medhioub, H., Zerrouki, C., Fourati, N., Smaoui, H., Guermazi, H., and Bonnet, J. J.

Subjects
X-rays, EPOXY resins, POLYMERS, STABILITY (Mechanics), RESEARCH
Abstract

The grazing incidence x-ray reflectometry was used in this study to characterize an epoxy based polymer (Striasol 500). The possibility of using complementarily reflection and transmission of diffuse x ray has been emphasized. Measurements were made in both “detector scan” and “rocking curve” modes. For the first mode, results have shown that this polymer presents locally a periodic character, with various spacing structures (from 32 to 74 nm), while the rocking curve measurements revealed that the mean orientation of these structures is slightly tilted (about 0.01°) compared to the surface sample. Reproducibility measurements have been equally demostrated showing a short distance order, as the periodic structures are observed only on some parts of the analyzed sample. At last, a stability study has shown that the structure of superficial and deeper parts of polymer varies differently after 15 months. [ABSTRACT FROM AUTHOR]

Published
2007
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95. Dielectric characterization of epoxy resin based polymer

Author

Jilani, Wissal, Mzabi, N., Gallot-Lavallée, Olivier, Fourati, N., Zerrouki, Rachida, Guermazi, H., Faculté des Sciences de Sfax, Université de Sfax - University of Sfax, G2Elab-Matériaux Diélectriques et Electrostatique (G2Elab-MDE), Laboratoire de Génie Electrique de Grenoble (G2ELab), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Conservatoire National des Arts et Métiers [CNAM] (CNAM), Laboratoire de Chimie des Substances Naturelles (LCSN), Université de Limoges (UNILIM)-Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST FR CNRS 3503), and Garcia, Sylvie

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, ComputingMilieux_MISCELLANEOUS, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

International audience

Published
2014

98. Antigen-antibody selective recognition using LiTaO SH-SAW sensors: investigations on macromolecules effects on binding kinetic constants

Author

Bergaoui, Y., Zerrouki, C., Fourati, N., Fougnion, J. M., and Abdelghani, A.

Subjects
[PHYS]Physics [physics], Physical Sciences, technology, industry, and agriculture
Abstract

International audience; A gravimetric surface acoustic wave (SAW) biosensor, based on the biotin-streptavidin and antistreptavidin-streptavidin recognitions, has been carried out. A network analyser and a pulse excitation technique were used to monitor both amplitude and phase changes. The SAW biosensor presented a total selective recognition of streptavidin-antistreptavidin and HRPstreptavidin-antistreptavidin. The presence of HRP (Horseradish peroxidase) affects neither the selectivity nor the sensitivity (of order of 0.25°/nM) of the biosensor, nevertheless, it causes a reduction of binding kinetics by a factor ranging between 2 to 5, as well as a diminution of antistreptavidin saturation concentration (of 40%). Results showed that equilibrium constants can be different, depending on evaluation method (from saturation values or from linear part of the output signal variation according to solution concentration).

Published
2011
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