Mechanical modification of bacterial cellulose hydrogel under biaxial cyclic tension
journal contributionposted on 2019-12-16, 10:56 authored by Xing Gao, Emrah Sozumert, Zhijun Shi, Guang Yang, Vadim SilberschmidtVadim Silberschmidt
This study presents a novel and simple method to modify the microstructure of bacterial cellulose (BC) hydrogel. BC specimens were produced using Gluconacetobacterxylinus ATCC 53582, then cut into cross-shape specimens and subjected to biaxial cyclic tension in a displacement-control mode. Microstructural changes in the tested specimens were recorded during a biaxial deformation process. The effect of biaxial load on microstructure of BC hydrogel was investigated to understand deformation and fracture mechanisms of a BC fibrous network. The obtained knowledge reveals the fundamental principles of microstructural modifications, which could enhance biological performance of such hydrogels. The mechanically re-constructed BC specimens demonstrated a relatively homogeneous micro-porous structure with an average pore size of 100 μm.
7th European Community Framework Programme for financial support through a Marie Curie International Research Staff Exchange Scheme (IRSES) Project entitled “Micro-Multi-Material Manufacture to Enable Multifunctional Miniaturised Devices (M6)” (Grant no. PIRSES-GA2010-269113).
European Union Programme Horizon 2020 under Grant Agreement no H2020-MSCA-RISE-2014- 644175 MATRIXASSAY
China-European Union technology cooperation programme (Grant no. 1110
National Natural Science Foundation of China (Grant no. U1713219)
- Mechanical, Electrical and Manufacturing Engineering