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Showing 1 to 12 of 26 entries
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¹⁴N Quadrupole Resonance line broadening due to the earth magnetic field, occuring only in the case of an axially symmetric electric field gradient tensor.

Solid state nuclear magnetic resonance

Aissani S, Guendouz L, Marande PL, Canet D.
PMID: 25910551
Solid State Nucl Magn Reson. 2015 Jun-Jul;68:57-60. doi: 10.1016/j.ssnmr.2015.04.001. Epub 2015 Apr 11.

As demonstrated before, the application of a weak static B0 magnetic field (less than 10 G) may produce definite effects on the ¹⁴N Quadrupole Resonance line when the electric field gradient tensor at the nitrogen nucleus level is of...

Effect of Quorum Quenching Lactonase in Clinical Isolates of .

Frontiers in microbiology

Guendouze A, Plener L, Bzdrenga J, Jacquet P, Rémy B, Elias M, Lavigne JP, Daudé D, Chabrière E.
PMID: 28261183
Front Microbiol. 2017 Feb 14;8:227. doi: 10.3389/fmicb.2017.00227. eCollection 2017.

No abstract available.

Molecular dynamics of a short-range ordered smectic phase nanoconfined in porous silicon.

The Journal of chemical physics

Guégan R, Morineau D, Lefort R, Moréac A, Béziel W, Guendouz M, Zanotti JM, Frick B.
PMID: 17313239
J Chem Phys. 2007 Feb 14;126(6):064902. doi: 10.1063/1.2435366.

4-n-octyl-4-cyanobiphenyl has been recently shown to display an unusual sequence of phases when confined into porous silicon (PSi). The gradual increase of oriented short-range smectic (SRS) correlations in place of a phase transition has been interpreted as a consequence...

Off-resonance effects and selectivity profiles in pulsed nitrogen-14 nuclear quadrupole resonance.

Solid state nuclear magnetic resonance

Guendouz L, Robert A, Retournard A, Leclerc S, Aissani S, Canet D.
PMID: 23063174
Solid State Nucl Magn Reson. 2012 Oct-Nov;47:39-46. doi: 10.1016/j.ssnmr.2012.08.004. Epub 2012 Sep 01.

In order to alleviate base-line distortions in nitrogen-14 NQR spectra originating from pulse breakthrough, low power radio-frequency (rf) pulses were applied. It is recalled that the required power is four times lower than that for an equivalent NMR experiment....

Circulating miRNA repertoire as a biomarker of metabolic and reproductive states in rainbow trout.

BMC biology

Cardona E, Guyomar C, Desvignes T, Montfort J, Guendouz S, Postlethwait JH, Skiba-Cassy S, Bobe J.
PMID: 34781956
BMC Biol. 2021 Nov 16;19(1):235. doi: 10.1186/s12915-021-01163-5.

BACKGROUND: Circulating miRNAs (c-miRNAs) are found in most, if not all, biological fluids and are becoming well-established non-invasive biomarkers of many human pathologies. However, their features in non-pathological contexts and whether their expression profiles reflect normal life history events...

Study design and rationale of the pAtients pResenTing with cOngenital heaRt dIseAse Register (ARTORIA-R).

ESC heart failure

Sinning C, Zengin E, Diller GP, Onorati F, Castel MA, Petit T, Chen YS, Lo Rito M, Chiarello C, Guillemain R, Coniat KN, Magnussen C, Knappe D, Becher PM, Schrage B, Smits JM, Metzner A, Knosalla C, Schoenrath F, Miera O, Cho MY, Bernhardt A, Weimann J, Goßling A, Terzi A, Amodeo A, Alfieri S, Angeli E, Ragni L, Napoleone CP, Gerosa G, Pradegan N, Rodrigus I, Dumfarth J, de Pauw M, François K, Van Caenegem O, Ancion A, Van Cleemput J, Miličić D, Moza A, Schenker P, Thul J, Steinmetz M, Warnecke G, Ius F, Freyt S, Avsar M, Sandhaus T, Haneya A, Eifert S, Saeed D, Borger M, Welp H, Ablonczy L, Schmack B, Ruhparwar A, Naito S, Hua X, Fluschnik N, Nies M, Keil L, Senftinger J, Ismaili D, Kany S, Csengeri D, Cardillo M, Oliveti A, Faggian G, Dorent R, Jasseron C, Blanco AP, Márquez JMS, López-Vilella R, García-Álvarez A, López MLP, Rocafort AG, Fernández ÓG, Prieto-Arevalo R, Zatarain-Nicolás E, Blanchart K, Boignard A, Battistella P, Guendouz S, Houyel L, Para M, Flecher E, Gay A, Épailly É, Dambrin C, Lam K, Ka-Lai CH, Cho YH, Choi JO, Kim JJ, Coats L, Crossland DS, Mumford L, Hakmi S, Sivathasan C, Fabritz L, Schubert S, Gummert J, Hübler M, Jacksch P, Zuckermann A, Laufer G, Baumgartner H, Giamberti A, Reichenspurner H, Kirchhof P.
PMID: 34510806
ESC Heart Fail. 2021 Dec;8(6):5542-5550. doi: 10.1002/ehf2.13574. Epub 2021 Sep 12.

AIM: Due to improved therapy in childhood, many patients with congenital heart disease reach adulthood and are termed adults with congenital heart disease (ACHD). ACHD often develop heart failure (HF) as a consequence of initial palliative surgery or complex...

Toward nitrogen-14 nuclear quadrupole resonance imaging by nutation experiments performed with a radio-frequency field gradient.

Solid state nuclear magnetic resonance

Aissani S, Guendouz L, Marande PL, Canet D.
PMID: 28027835
Solid State Nucl Magn Reson. 2017 Jul - Aug;84:41-44. doi: 10.1016/j.ssnmr.2016.12.007. Epub 2016 Dec 16.

Until now, NQR imaging has been considered mainly in the case of Chlorine-35. This is a spin 3/2 resonating at relatively high frequency (around 30MHz) thus affording a favorable sensitivity. Conversely, Nitrogen-14 (spin 1) NQR is much less sensitive...

History of extracardiac/cardiac events in cardiac amyloidosis: prevalence and time from initial onset to diagnosis.

ESC heart failure

Kharoubi M, Bézard M, Galat A, Le Bras F, Poullot E, Molinier-Frenkel V, Fanen P, Funalot B, Moktefi A, Lefaucheur JP, Abulizi M, Deux JF, Lemonnier F, Guendouz S, Chalard C, Zaroui A, Audard V, Bequignon E, Bodez D, Itti E, Hittinger L, Audureau E, Teiger E, Oghina S, Damy T.
PMID: 34714605
ESC Heart Fail. 2021 Dec;8(6):5501-5512. doi: 10.1002/ehf2.13652. Epub 2021 Oct 29.

AIMS: Cardiac amyloidosis (CA) has a poor prognosis which is aggravated by diagnostic delay. Amyloidosis extracardiac and cardiac events (AECE and ACE) may help improve CA diagnosis and typing. The aim of this study was to compare AECE and...

Application of Doehlert Matrix for an Optimized Preparation of a Surface-Enhanced Raman Spectroscopy (SERS) Substrate Based on Silicon Nanowires for Ultrasensitive Detection of Rhodamine 6G.

Applied spectroscopy

Ouhibi A, Saadaoui M, Lorrain N, Guendouz M, Raouafi N, Moadhen A.
PMID: 31617371
Appl Spectrosc. 2020 Feb;74(2):168-177. doi: 10.1177/0003702819881222. Epub 2019 Nov 07.

In this work, we combined a hierarchical nano-array effect of silicon nanowires (SiNWs) with a metallic surface of silver nanoparticles (AgNPs) to design a surface-enhanced Raman spectroscopy (SERS) scattering substrate for sensitive detection of Rhodamine 6G (R6G) which is...

Pulmonary hemodynamic responses to inhaled NO in chronic heart failure depend on PDE5 G(-1142)T polymorphism.

Pulmonary circulation

Damy T, Lesault PF, Guendouz S, Eddahibi S, Tu L, Marcos E, Guellich A, Dubois-Randé JL, Teiger E, Hittinger L, Adnot S.
PMID: 22140627
Pulm Circ. 2011 Jul-Sep;1(3):377-82. doi: 10.4103/2045-8932.87303.

To evaluate the vasoconstrictor component of PH in CHF by investigating the hemodynamic response to inhaled nitric oxide (iNO) and to determine whether this response was influenced by the phosphodiesterase 5 gene (PDE5) G(1142)T polymorphism. CHF patients underwent right...

Evidence of anisotropic quenched disorder effects on a smectic liquid crystal confined in porous silicon.

Physical review. E, Statistical, nonlinear, and soft matter physics

Guégan R, Morineau D, Loverdo C, Béziel W, Guendouz M.
PMID: 16486169
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jan;73(1):011707. doi: 10.1103/PhysRevE.73.011707. Epub 2006 Jan 18.

We present a neutron scattering analysis of the structure of the smectic liquid crystal octylcyanobiphenyl (8CB) confined in one-dimensional nanopores of porous silicon films (PS). The smectic transition is completely suppressed, leading to the extension of a short-range ordered...

Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal.

Physical review. E, Statistical, nonlinear, and soft matter physics

Lefort R, Morineau D, Guégan R, Guendouz M, Zanotti JM, Frick B.
PMID: 18999369
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Oct;78(4):040701. doi: 10.1103/PhysRevE.78.040701. Epub 2008 Oct 06.

We analyze the molecular dynamics heterogeneity of the liquid crystal 4-n-octyl-4'-cyanobiphenyl nanoconfined in porous silicon. We show that the temperature dependence of the dynamic correlation length xi_(wall) , which measures the distance over which a memory of the interfacial...

Showing 1 to 12 of 26 entries