Institution
Soleil Synchrotron
Facility•Gif-sur-Yvette, France•
About: Soleil Synchrotron is a facility organization based out in Gif-sur-Yvette, France. It is known for research contribution in the topics: Beamline & Absorption spectroscopy. The organization has 391 authors who have published 536 publications receiving 11137 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this article, a joint experimental and computational systematic exploration of the driving forces that govern encapsulation of active ingredients (solvent, starting material dehydration, drug/material ratio, immersion time, and several consecutive impregnations) and its kinetics of delivery (structure, polarity,...) was performed using a series of porous biocompatible metal-organic frameworks (MOFs) that bear different topologies, connectivities, and chemical compositions.
Abstract: A joint experimental and computational systematic exploration of the driving forces that govern (i) encapsulation of active ingredients (solvent, starting material dehydration, drug/material ratio, immersion time, and several consecutive impregnations) and (i) its kinetics of delivery (structure, polarity, ...) was performed using a series of porous biocompatible metal–organic frameworks (MOFs) that bear different topologies, connectivities, and chemical compositions. The liporeductor cosmetic caffeine was selected as the active molecule. Its encapsulation is a challenge for the cosmetic industry due to its high tendency to crystallize leading to poor loadings (<5 wt %) and uncontrolled releases with a subsequent low efficiency. It was evidenced that caffeine entrapping reaches exceptional payloads up to 50 wt %, while progressive release of this cosmetic agent upon immersion in the simulated physiological media (phosphate buffer solution pH = 7.4 or distilled water pH = 6.3, 37 °C) occurred mainly depend...
394 citations
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TL;DR: The development of synchrotron-based FTIRM is described, its advantages in many applications to biological systems are illustrated, and some potential future directions for the technique are proposed.
374 citations
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TL;DR: The use of continuous scanning during data acquisition for Bragg coherent diffraction imaging, i.e., where the sample is in continuous motion, shows a reduction of 30% in total scan time compared to conventional step-by-step scanning.
Abstract: We explore the use of continuous scanning during data acquisition for Bragg coherent diffraction imaging, i.e., where the sample is in continuous motion. The fidelity of continuous scanning Bragg coherent diffraction imaging is demonstrated on a single Pt nanoparticle in a flow reactor at $$400\,^\circ \hbox {C}$$
in an Ar-based gas flowed at 50 ml/min. We show a reduction of 30% in total scan time compared to conventional step-by-step scanning. The reconstructed Bragg electron density, phase, displacement and strain fields are in excellent agreement with the results obtained from conventional step-by-step scanning. Continuous scanning will allow to minimise sample instability under the beam and will become increasingly important at diffraction-limited storage ring light sources.
321 citations
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TL;DR: A computer program named ANKAphase is presented that processes X-ray inline phase-contrast radiographs by reconstructing the projected thickness of the object(s) imaged by using a single-distance non-iterative phase-retrieval algorithm described by David Paganin et al.
Abstract: An equation in the paper by Weitkamp et al. [(2011), J. Synchrotron Rad. 18, 617–629] is corrected.
251 citations
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TL;DR: The demonstration of ghost imaging with hard x rays may open the way to protocols to reduce radiation damage in medical imaging and in nondestructive structural characterization using free electron lasers.
Abstract: We report an experimental proof of principle for ghost imaging in the hard-x-ray energy range. We use a synchrotron x-ray beam that is split using a thin crystal in Laue diffraction geometry. With an ultrafast imaging camera, we are able to image x rays generated by isolated electron bunches. At this time scale, the shot noise of the synchrotron emission process is measurable as speckles, leading to speckle correlation between the two beams. The integrated transmitted intensity from a sample located in the first beam is correlated with the spatially resolved intensity measured in the second, empty, beam to retrieve the shadow of the sample. The demonstration of ghost imaging with hard x rays may open the way to protocols to reduce radiation damage in medical imaging and in nondestructive structural characterization using free electron lasers.
245 citations
Authors
Showing all 407 results
Name | H-index | Papers | Citations |
---|---|---|---|
John D. Bozek | 55 | 282 | 14804 |
Vincent Jacques | 49 | 130 | 11718 |
Laurent Nahon | 45 | 205 | 6252 |
Paul Dumas | 44 | 193 | 7220 |
Timm Weitkamp | 43 | 181 | 8691 |
Jan Lüning | 41 | 174 | 6530 |
François Bertran | 40 | 190 | 5517 |
Fausto Sirotti | 40 | 241 | 5237 |
Maria C. Asensio | 40 | 163 | 7651 |
F.J. Iguaz | 39 | 196 | 5247 |
Pierre Legrand | 39 | 135 | 5845 |
Valérie Briois | 37 | 177 | 4366 |
Amina Taleb-Ibrahimi | 35 | 117 | 6869 |
Philippe Ohresser | 34 | 152 | 3920 |
Jean-Pascal Rueff | 34 | 178 | 4509 |