作者
Saikat Jana, Samuel GV Charlton, Lucy E Eland, J Grant Burgess, Anil Wipat, Thomas P Curtis, Jinju Chen
发表日期
2020/4/14
期刊
npj Biofilms and Microbiomes
卷号
6
期号
1
页码范围
19
出版商
Nature Publishing Group UK
简介
Bacterial biofilms in natural and artificial environments perform a wide array of beneficial or detrimental functions and exhibit resistance to physical as well as chemical perturbations. In dynamic environments, where periodic or aperiodic flows over surfaces are involved, biofilms can be subjected to large shear forces. The ability to withstand these forces, which is often attributed to the resilience of the extracellular matrix. This attribute of the extracellular matrix is referred to as viscoelasticity and is a result of self-assembly and cross-linking of multiple polymeric components that are secreted by the microbes. We aim to understand the viscoelastic characteristic of biofilms subjected to large shear forces by performing Large Amplitude Oscillatory Shear (LAOS) experiments on four species of bacterial biofilms: Bacillus subtilis, Comamonas denitrificans, Pseudomonas fluorescens and Pseudomonas aeruginosa. We find …
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S Jana, SGV Charlton, LE Eland, JG Burgess, A Wipat… - npj Biofilms and Microbiomes, 2020