Bernard Cathala

Biopolymères Interactions Assemblages

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Céline Moreau

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

Ana Villares

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

Hervé Bizot

Biopolymères Interactions Assemblages

Isabelle Capron

Biopolymères Interactions Assemblages

Bernard B. Monties

Fractionnation of AgroResources and Environment

Nadège Beury

Biopolymères Interactions Assemblages

Brigitte Chabbert

Université de Reims Champagne-Ardenne

Estelle Bonnin

Biopolymères Interactions Assemblages

Malika Talantikite

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

Bodo Saake

Universität Hamburg

Cooperative Institutions

Centre National de la Recherche Scientifique

193

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

123

Biopolymères Interactions Assemblages

104

Institut National de la Recherche Agronomique

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Aix-Marseille Université

Université Grenoble Alpes

Université de Toulouse

Université Toulouse III - Paul Sabatier

Université Paris-Saclay

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Kinetic aspects of the adsorption of xyloglucan onto cellulose nanocrystals

Soft Matter (2015)

Ana Villares Céline Moreau Abir Dammak Isabelle Capron Bernard Cathala

Kinetic studies of XG adsorption onto CNC surfaces reveal two adsorption regimes: adsorption as trains at low XG concentration, or as loops and tails at high XG concentration.

Xyloglucan

10.1039/c5sm01413a

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Citations (60)

Cellulose Nanoparticle mediated dispersion of Single Walled Carbon Nanotube (SWCNT) and elaboration of SWCNT /Cellulose Nanocrystals (CN) Multilayered Thin Films

HAL (Le Centre pour la Communication Scientifique Directe) (2011)

Olivier D. Christophe O. Chauvet Hervé Bizot Bernard Cathala

Source

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Xyloglucan–Cellulose Nanocrystals Mixtures: A Case Study of Nanocolloidal Hydrogels and Levers for Tuning Functional Properties

Gels (2024)

Géraldine Rangel Céline Moreau Ana Villares Christophe Chassenieux Bernard Cathala

The development of fully biobased hydrogels obtained by simple routes and in the absence of toxic or environmentally harmful reagents is a major challenge in meeting new societal demands. In this work, we discuss the development of hydrogels made from cellulose nanocrystals (CNCs) and xyloglucan (XG), two non-toxic, renewable, and biobased components. We present three strategies to fine-tune the functional properties. The first one consists in varying the XG/CNC ratio that leads to the modulation of the mechanical properties of hydrogels as well as a better comprehension of the gel mechanism formation. The second relies on tuning the XG chains' interaction by enzymatic modification to achieve thermoresponsive systems. Finally, the third one is based on the increase in the hydrogel solid content by osmotic concentration. The high-solid-content gels were found to have very high mechanical properties and self-healing properties that can be used for molding materials. Overall, these approaches are a case study of potential modifications and properties offered by biobased nanocolloidal hydrogels.

Xyloglucan

10.3390/gels10050334

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Lytic polysaccharide monooxygenases (LPMO) promote cellulose defibrillation: New tool for cellulose nanofibril production

Bernard Cathala

Lytic cycle

10.1021/scimeetings.0c01079

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Adsorption of biopolymers onto nanocelluloses for the fabrication of hollow microcapsules

Nordic Pulp & Paper Research Journal (2021)

Salvatore Lombardo Bernard Cathala Ana Villares

Abstract In this work, we studied the multilayer adsorption of cellulose nanocrystals and cellulose nanofibers with other polysaccharides such as xyloglucan and chitosan. We showed that the specific interactions between these biopolymers can be exploited to prepare three-dimensional functional materials. Quartz crystal microbalance studies showed that both biopolymers were adsorbed irreversibly on the nanocellulose surfaces. In aqueous media, the maximum amount of adsorbed polymer was higher for the smaller and more crystalline cellulose nanocrystals, compared to cellulose nanofibers. For both nanocelluloses employed, the amount of xyloglucan of the first bilayer was larger than the amount of chitosan adsorbed. Ellipsometry showed that both xyloglucan and chitosan were adsorbed on nanocellulose surfaces. However, at the second layer no mass change was detected by quartz crystal microbalance when xyloglucan was added, while for addition of successive layers of chitosan a decrease of frequency was detected. The water uptake of multilayers was higher for cellulose nanocrystals than for nanofibers, which was ascribed the presence of voids in the nanocrystal layer. Finally, we demonstrated that multilayer adsorption of these biopolymers can be performed on calcium carbonate sacrificial templates, which can then be removed to yield hollow polysaccharide microcapsules.

Xyloglucan

Quartz Crystal Microbalance

Nanocellulose

Biopolymer

10.1515/npprj-2021-0040

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Citations (4)

Semi reflective biopolymer layers for the detection of biomass hydrolytic enzymatic activities

MRS Proceedings (2011)

Carole Cerclier Céline Moreau A. Guyomard-Lack Estelle Bonnin H. Bizot

Xyloglucan

Biopolymer