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Showing 25 to 36 of 185 entries
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Porphyrins Conjugated with Peripheral Thiolato Gold(I) Complexes for Enhanced Photodynamic Therapy.

Chemistry (Weinheim an der Bergstrasse, Germany)

Longevial JF, El Cheikh K, Aggad D, Lebrun A, van der Lee A, Tielens F, Clément S, Morère A, Garcia M, Gary-Bobo M, Richeter S.
PMID: 28763126
Chemistry. 2017 Oct 09;23(56):14017-14026. doi: 10.1002/chem.201702975. Epub 2017 Sep 08.

Porphyrins fused to imidazolium salts across two neighboring β-pyrrolic positions were used as N-heterocyclic carbene (NHC) precursors to anchor Au

Simultaneous 3D location and size measurement of bubbles and sand particles in a flow using interferometric particle imaging.

Applied optics

Ouldarbi L, Pérret G, Lemaitre P, Porcheron E, Coëtmellec S, Gréhan G, Lebrun D, Brunel M.
PMID: 26368904
Appl Opt. 2015 Sep 01;54(25):7773-80. doi: 10.1364/AO.54.007773.

We present a system to characterize a triphasic flow in a 3D volume (air bubbles and solid irregular particles in water) using only one CCD sensor. A cylindrical interferometric out-of-focus imaging setup is used to determine simultaneously the 3D...

Growth Mechanism and Surface State of CuInS.

Journal of the American Chemical Society

Gromova M, Lefrançois A, Vaure L, Agnese F, Aldakov D, Maurice A, Djurado D, Lebrun C, de Geyer A, Schülli TU, Pouget S, Reiss P.
PMID: 28994294
J Am Chem Soc. 2017 Nov 08;139(44):15748-15759. doi: 10.1021/jacs.7b07401. Epub 2017 Oct 19.

Ternary metal chalcogenide nanocrystals (NCs) offer exciting opportunities as novel materials to be explored on the nanoscale showing optoelectronic properties tunable with size and composition. CuInS

Post-genomic approaches to understanding interactions between fungi and their environment.

IMA fungus

de Vries RP, Benoit I, Doehlemann G, Kobayashi T, Magnuson JK, Panisko EA, Baker SE, Lebrun MH.
PMID: 22679591
IMA Fungus. 2011 Jun;2(1):81-6. doi: 10.5598/imafungus.2011.02.01.11. Epub 2011 May 24.

Fungi inhabit every natural and anthropogenic environment on Earth. They have highly varied life-styles including saprobes (using only dead biomass as a nutrient source), pathogens (feeding on living biomass), and symbionts (co-existing with other organisms). These distinctions are not...

Visible and near infrared resonance plasmonic enhanced nanosecond laser optoporation of cancer cells.

Biomedical optics express

St-Louis Lalonde B, Boulais E, Lebrun JJ, Meunier M.
PMID: 23577284
Biomed Opt Express. 2013 Apr 01;4(4):490-9. doi: 10.1364/BOE.4.000490. Epub 2013 Mar 01.

In this paper, we report a light driven, non-invasive cell membrane perforation technique based on the localized field amplification by a nanosecond pulsed laser near gold nanoparticles (AuNPs). The optoporation phenomena is investigated with pulses generated by a Nd:YAG...

Pressure impact of autoclave treatment on water sorption and pectin composition of flax cellulosic-fibres.

Carbohydrate polymers

Alix S, Colasse L, Morvan C, Lebrun L, Marais S.
PMID: 24507251
Carbohydr Polym. 2014 Feb 15;102:21-9. doi: 10.1016/j.carbpol.2013.10.092. Epub 2013 Nov 06.

The tensile properties of flax fibres might permit them to be used in composites as reinforcement in organic resin, as long as their mechanical properties are reproducible and their water sorption are reduced. In this study, to minimise the...

Particle field digital holographic reconstruction in arbitrary tilted planes.

Optics express

Lebrun D, Benkouider A, Coëtmellec S, Malek M.
PMID: 19461727
Opt Express. 2003 Feb 10;11(3):224-9. doi: 10.1364/oe.11.000224.

Digital holography is applied to the reconstruction of small particles in a plane whose orientation is arbitrary as specified by the user. The diffraction pattern produced by the particles is directly recorded by a conventional CCD camera. The digital...

Micropipe flow visualization using digital in-line holographic microscopy.

Optics express

Verrier N, Remacha C, Brunel M, Lebrun D, Coëtmellec S.
PMID: 20588622
Opt Express. 2010 Apr 12;18(8):7807-19. doi: 10.1364/OE.18.007807.

Digital in-line holography is used to visualize particle motion within a cylindrical micropipe. Analytical expression of the intensity distribution recorded in the CCD sensor plane is derived using the generalized Huygens-Fresnel integral associated with the ABCD matrices formalism. Holograms...

Application of the fractional Fourier transformation to digital holography recorded by an elliptical, astigmatic Gaussian beam.

Journal of the Optical Society of America. A, Optics, image science, and vision

Nicolas F, Coëtmellec S, Brunel M, Allano D, Lebrun D, Janssen AJ.
PMID: 16302410
J Opt Soc Am A Opt Image Sci Vis. 2005 Nov;22(11):2569-77. doi: 10.1364/josaa.22.002569.

The authors have studied the diffraction pattern produced by a particle field illuminated by an elliptic and astigmatic Gaussian beam. They demonstrate that the bidimensional fractional Fourier transformation is a mathematically suitable tool to analyse the diffraction pattern generated...

Hologram reconstruction by use of optical wavelet transform.

Applied optics

Lebrun D, Belaïd S, Ozkul C.
PMID: 18319979
Appl Opt. 1999 Jun 10;38(17):3730-4. doi: 10.1364/ao.38.003730.

High-speed in-line holography is used to visualize the trajectories of glass fibers being drawn out in a turbulent flame. To improve the signal-to-noise ratio, the images are not observed by a conventional reconstruction setup, but the holographic plate is...

Modeling of elastic nonlinearities in ferroelectric materials including nonlinear losses: application to nonlinear resonance mode of relaxors single crystals.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control

Sebald G, Lebrun L, Guyomar D.
PMID: 16060508
IEEE Trans Ultrason Ferroelectr Freq Control. 2005 Apr;52(4):596-603. doi: 10.1109/tuffc.2005.1428042.

(1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) and (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (PZN-PT) single crystals are considered to behave like soft Pb(Zr,Ti)O3 (PZT) ceramics because of their small mechanical quality factor Qm and poor stability under external disturbances (Qm > 500-1000 for hard PZT ceramic, and Qm...

Convergent evolution of levee building behavior among distantly related ant species in a floodplain ant assemblage.

Insectes sociaux

Lebrun EG, Moffett M, Holway DA.
PMID: 21475683
Insectes Soc. 2011 May;58(2):263-269. doi: 10.1007/s00040-011-0151-4. Epub 2011 Jan 28.

Flooding impacts ground nesting ant colonies by destroying the infrastructure housing and organizing societal function. Here, we report the convergent evolution in distantly related ant species of a behavioral trait that minimizes costs of flooding: the construction of earthen...

Showing 25 to 36 of 185 entries