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Download fileMechanical modification of bacterial cellulose hydrogel under biaxial cyclic tension
journal contribution
posted on 2019-12-16, 10:56 authored by Xing Gao, Emrah Sozumert, Zhijun Shi, Guang Yang, Vadim SilberschmidtVadim SilberschmidtThis 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.
Funding
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)
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Mechanics of MaterialsVolume
142Publisher
Elsevier BVVersion
- AM (Accepted Manuscript)
Rights holder
© ElsevierPublisher statement
This paper was accepted for publication in the journal Mechanics of Materials and the definitive published version is available at https://doi.org/10.1016/j.mechmat.2019.103272Acceptance date
2019-12-04Publication date
2019-12-07Copyright date
2020ISSN
0167-6636Publisher version
Language
- en