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Arabinoxylan/Cellulose Nanocrystal Hydrogels with Tunable Mechanical Properties
Malika Talantikite1, Nadège Beury1, Céline Moreau1
1UR1268 Biopolymères Interactions Assemblages , INRA , Rue de la géraudière , 44316 , Nantes , France.
Langmuir : the ACS Journal of Surfaces and Colloids
|September 26, 2019
Summary
This study developed sustainable, biobased hydrogels from cellulose nanocrystals (CNC) and arabinoxylans (AX). These eco-friendly materials offer tunable properties for diverse applications, highlighting the potential of biomass-derived components.
Area of Science:
- Materials Science
- Biotechnology
- Polymer Chemistry
Background:
- Hydrogels are widely used but require sustainable, non-toxic materials.
- Biomass-derived components like cellulose nanocrystals (CNC) and arabinoxylans (AX) offer eco-friendly alternatives.
Purpose of the Study:
- To create fully biobased hydrogels using CNC and AX.
- To investigate the gelation process, mechanical properties, and tunability of CNC-AX hydrogels.
Main Methods:
- Quartz Crystal Microbalance with Dissipation (QCM-D) for adsorption studies.
- Inverted tube method for phase diagram determination.
- Mechanical property analysis (storage and loss moduli).
Main Results:
- Arabinoxylans (AX) adsorb rapidly and irreversibly onto cellulose nanocrystals (CNC).
- Gelation is temperature-dependent and requires high AX/CNC ratios.
- Hydrogel properties are tunable via ionic strength and enzymatic modification of AX.
Conclusions:
- Hydrogel formation involves AX adsorption followed by complex gelation.
- Reversible and tunable interactions between CNC/AX complexes enable property modulation.
- These biobased hydrogels present versatile tools for material design.
