Julie Wolanin, Jérôme Giraud, Claude Payre, Marianne Benoit, Claire Antonelli, Damien Quemener, Iliass Tahiri, Matthieu Vandamme, Jean-Marc Zanotti, and Marie Plazanet In comparison to condensed matter, soft matter is subject to several interplaying effects (surface heterogeneities and swelling effect) that influence transport at the nanoscale.

La structure des protéines est en lien étroit avec leur fonction.

La "corona" désigne l'enveloppe de protéines qui entoure spontanément toute nanoparticule plongée dans un milieu biologique.

Liu Chang; Hu Wenxian; Jiang Hanqiu; Liu Guoming; Han Charles; Sirringhaus Henning; Boué François; Wang Dujin The determination of intrinsic chain stiffness of conjugated polymers is challenging, in particular, for scattering techniques because of their strong light absorption and structural instability due to the complicated intra-/intermolecular interactions.

Simeon Minic, Burkhard Annighofer, Arnaud Helary, Djemel Hamdane, Gaston Hui Bon Hoa, Camille Loupiac, Annie Brulet, and Sophie Combet To probe intermediate states during unfolding and oligomerization of proteins remains a major challenge.

Chang Liu, Wenxian Hu, Hanqiu Jiang, Guoming Liu*, Charles C.

K. Beauvois, V. Simonet, S. Petit, J. Robert, F. Bourdarot, M. Gospodinov, A.A. Mukhin, R. Ballou, V. Skumryev, and E.

Li Shi, Florent Carn, Arsen Goukassov, Eric Buhler, and François Boué Mixing negatively charged polyelectrolyte (PEL) with positively charged gold nanoparticles (Au NPs) in aqueous solution results in electrostatics complexes of different shapes and compactness.

Marine Le Goas, Tom Roussel, Maria Kalbazova, David Carrière, Elodie Barruet, Valerie Geertsen, Giulia C.

Le transport des biomolécules joue un rôle essentiel dans les mécanismes biologiques du vivant.

We show by X-ray and neutron small-angle scattering that gold nanoparticles with controlled sizes and morphologies can be obtained by the metallic reduction of AuCl4– ions trapped in 3D organic molds by X-ray radiolysis.

Editors : Véronique Arluison and Frank Wien This volume looks at the different spectroscopic and biophysical methods used by researchers to study the structure and folding of RNA, and to follow their interactions with proteins.

Andrew M. Jimenez, Dan Zhao, Kyle Misquitta, Jacques Jestin and Sanat K.

Aline Maire du Poset, Mikaela Börjesson, Céline Rameau, Claire Madeleine-Perdrillat, Adrien Lerbret, Camille Loupiac, Fabrice Cousin, Ali Assifaoui We show here how the structure of polygalacturonate (polyGalA) hydrogels cross-linked by Ca2+ cations via external gelation controls the loading and release rate of beta-lactoglobulin (BLG), a globular protein.

Les matériaux composites, dont on peut faire judicieusement varier la composition, permettent de combiner les propriétés de ses constituants.

de Oliveira-Silva, Rodrigo; Bélime, Agathe; Le Coeur, Clémence; Chennevière, Alexis; Helary, Arnaud; Cousin, Fabrice; Judeinstein, Patrick; Sakellariou, Dimitrios; Zanotti, Jean-Marc In soft condensed matter, Small Angle Neutron Scattering (SANS) is a central tool to probe structures with characteristic sizes ranging from 1 to 100 nm.

Daniela Russo, Maya Dimova Lambreva, Christiane Alba Simionesco, Pierre Sebban,and Giuseppina Rea Studies on the dynamical properties of photosynthetic membranes of land plants and purple bacteria have been previously performed by neutron spectroscopy, revealing a tight coupling between specific photochemical reactions and macromolecular dynamics.

Des chercheurs de l’I2BC@Saclay et de l’UMR NIMBE, en collaboration avec le Laboratoire Léon Brillouin (LLB), ont analysé la structure de la couronne composée de deux protéines modèles adsorbées sur des nanoparticules de silice, en utilisant la technique de diffusion des neutrons aux petits angles.

A. Theodoratou, L.-T. Lee, J. Oberdisse and A. Aubert-Pouëssel, Langmuir 35(20) (2019) 6620.

"Dynamics properties of photosynthetic microorganisms probed by incoherent neutron scattering" Daniela Russo, Maya Dimova Lambreva, Christiane Alba Simionesco, Pierre Sebban, and Giuseppina Rea Biophysical Journal, 116 (9) (2019) 1759-1768 Studies on the dynamical properties of photosynthetic membranes of land plants and purple bacteria have been previously performed by neutron spectroscopy, revealing a tight coupling between specific photochemical reactions and macromolecular dynamics.

B. Annighöfer , A. Hélary, A. Brulet, A. Colas de la Noue, C. Loupiac and S.

Les membranes d’oxyde d’aluminium nanoporeuses sont des systèmes modèles permettant d’étudier le comportement de la matière sous confinement.

Andrés Marcoleta, Frank Wien, Véronique Arluison, Rosalba Lagos, Rafael Giraldo Bacterial Amyloids (2019) Amyloids are supramolecular protein assemblies based on fibrillar arrangements of β‐sheets that were first found as linked to neurodegenerative and systemic human diseases.

La diffusion des macromolécules dans les cellules ne suit généralement pas des lois simples de diffusion du fait de la grande quantité et diversité de molécules présentes dans ce milieu.

Pour survivre dans leur milieu, les bactéries doivent s'adapter à des conditions de croissance très différentes.