A unified rheological model for cells and cellularised materials
A unified rheological model for cells and cellularised materials
复制标题
细胞和多孔材料的统一流变模型
DOI:
10.1101/543330
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Bonfanti A
中科院分区:
文献类型:
--
作者:
Bonfanti A
The mechanical response of single cells and tissues exhibits a broad distribution of time-scales that often gives rise to a distinctive power-law rheology. Such complex behaviour cannot be easily captured by traditional rheological approaches, making material characterisation and predictive modelling very challenging. Here, we present a novel model combining conventional viscoelastic elements with fractional calculus that successfully captures the macroscopic relaxation response of epithelial monolayers. The parameters extracted from the fitting of the relaxation modulus allow prediction of the response of the same material to slow stretch and creep, indicating that the model captured intrinsic material properties. Two characteristic times, derived from the model parameters, delimit different regimes in the materials response. We compared the response of tissues with the behaviour of single cells as well as intra and extra-cellular components, and linked the power-law behaviour of the epithelium to the dynamics of the cell cortex. Such a unified model for the mechanical response of biological materials provides a novel and robust mathematical approach to consistently analyse experimental data and uncover similarities and differences in reported behaviour across experimental methods and research groups. It also sets the foundations for more accurate computational models of tissue mechanics.
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DOI:
10.1101/302158
发表时间:
2018-04
期刊:
bioRxiv
影响因子:
--
作者:
N. Khalilgharibi;J. Fouchard;N. Asadipour;Amina Y. Yonis;A. Harris;Payman Mosaffa;Yasuyuki Fujita;A. Kabla;B. Baum;J. Muñoz;M. Miodownik;G. Charras
通讯作者:
N. Khalilgharibi;J. Fouchard;N. Asadipour;Amina Y. Yonis;A. Harris;Payman Mosaffa;Yasuyuki Fujita;A. Kabla;B. Baum;J. Muñoz;M. Miodownik;G. Charras
影响因子:
3.4
作者:
Shen, Zhilei Liu;Kahn, Harold;Eppell, Steven J.
通讯作者:
Eppell, Steven J.
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
T. K. Chang;Y. Rossikhin;M. Shitikova;C. Chao
通讯作者:
C. Chao
影响因子:
5.8
作者:
Waters,ChristopherM;Roan,Esra;Navajas,Daniel
通讯作者:
Navajas,Daniel
影响因子:
1.6
作者:
Desprat, N.;Guiroy, A.;Asnacios, A.
通讯作者:
Asnacios, A.