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覆盖有非均匀聚合物刷的硬度增加表面的力学响应：一个数值模拟模型。

Mechanical response of a surface of increasing hardness covered with a nonuniform polymer brush: a numerical simulation model.

作者信息

Hernández-Fragoso J S, Alas S J, Gama Goicochea A

机构信息

Posgrado en Ciencias Naturales e Ingeniería, Universidad Autónoma Metropolitana Unidad Cuajimalpa Ciudad de México 05300 Mexico

Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana Unidad Cuajimalpa Ciudad de México 05300 Mexico.

出版信息

RSC Adv. 2020 Apr 1;10(23):13405-13409. doi: 10.1039/d0ra01385d.

DOI:10.1039/d0ra01385d
PMID:35493002
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9051531/
Abstract

The compression force with indentation on a polymer brush with chains of unequal lengths is predicted with numerical simulations, as a function of increasing hardness of the grafting surface, finding that properties of the brush are distinguished from those of the surface and that its hardness propagates through the brush.

摘要

通过数值模拟预测了在具有不等长链的聚合物刷上进行压痕时的压缩力，该压缩力是接枝表面硬度增加的函数，结果发现刷子的性质与表面性质不同，且其硬度会在整个刷子中传播。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/2ba34fc6e20c/d0ra01385d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/48b578506374/d0ra01385d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/121bae2d8467/d0ra01385d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/2ba34fc6e20c/d0ra01385d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/48b578506374/d0ra01385d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/121bae2d8467/d0ra01385d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3430/9051531/2ba34fc6e20c/d0ra01385d-f3.jpg

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本文引用的文献

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Fractal properties of biophysical models of pericellular brushes can be used to differentiate between cancerous and normal cervical epithelial cells.细胞周刷生物物理模型的分形性质可用于区分宫颈癌和正常宫颈上皮细胞。
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If cell mechanics can be described by elastic modulus: study of different models and probes used in indentation experiments.
如果细胞力学可以用弹性模量来描述：压痕实验中使用的不同模型和探针的研究。
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Quantitative study of the elastic modulus of loosely attached cells in AFM indentation experiments.原子力显微镜压痕实验中松动附着细胞的弹性模量的定量研究。
Biophys J. 2013 May 21;104(10):2123-31. doi: 10.1016/j.bpj.2013.04.019.
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Nanomechanics of the Cartilage Extracellular Matrix.软骨细胞外基质的纳米力学
Annu Rev Mater Res. 2011 Jul 1;41:133-168. doi: 10.1146/annurev-matsci-062910-100431.
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Atomic force microscopy detects differences in the surface brush of normal and cancerous cells.原子力显微镜可检测正常细胞和癌细胞表面刷的差异。
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Adsorption and disjoining pressure isotherms of confined polymers using dissipative particle dynamics.利用耗散粒子动力学研究受限聚合物的吸附与分离压力等温线
Langmuir. 2007 Nov 6;23(23):11656-63. doi: 10.1021/la701791h. Epub 2007 Oct 3.
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Biomechanics and biophysics of cancer cells.癌细胞的生物力学与生物物理学
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Dissipative particle dynamics simulations in the grand canonical ensemble: applications to polymer brushes.巨正则系综中的耗散粒子动力学模拟：在聚合物刷中的应用
Chemphyschem. 2004 Apr 19;5(4):457-64. doi: 10.1002/cphc.200300901.
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Scaling concepts for polymer brushes and their test with computer simulation.聚合物刷的标度概念及其计算机模拟测试
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