Entropic Effects on the Mechanical Behavior of Dry Polymer Brushes During Nanoindentation by Atomic Force Microscopy

2011 ◽  
Vol 44 (2) ◽  
pp. 368-374 ◽  
Author(s):  
Davide Tranchida ◽  
Elena Sperotto ◽  
Antoine Chateauminois ◽  
Holger Schönherr
Keyword(s):  
Atomic Force Microscopy ◽  
Mechanical Behavior ◽  
Polymer Brushes ◽  
Force Microscopy ◽  
Atomic Force ◽  
Entropic Effects

A novel approach for measuring the intrinsic nanoscale thickness of polymer brushes by means of atomic force microscopy: application of a compressible fluid model

Nanoscale ◽  
2013 ◽  
Vol 5 (23) ◽  
pp. 11679 ◽  
Author(s):  
José Luis Cuellar ◽  
Irantzu Llarena ◽  
Jagoba J. Iturri ◽  
Edwin Donath ◽  
Sergio Enrique Moya
Keyword(s):  
Atomic Force Microscopy ◽  
Compressible Fluid ◽  
Polymer Brushes ◽  
Fluid Model ◽  
Force Microscopy ◽  
Atomic Force ◽  
Novel Approach

Liquid Mechanical Behavior of Mixed Monolayers of Amino and Alkyl Silanes by Atomic Force Microscopy

Langmuir ◽  
2005 ◽  
Vol 21 (15) ◽  
pp. 6934-6943 ◽  
Author(s):  
Pascal Martin ◽  
Sophie Marsaudon ◽  
Laurent Thomas ◽  
Bernard Desbat ◽  
Jean-Pierre Aimé ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Mechanical Behavior ◽  
Mixed Monolayers ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Multiscale Network Modeling of Fibrin Fibers and Fibrin Clots with Protofibril Binding Mechanics

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1223
Author(s):  
Sumith Yesudasan ◽  
Rodney D. Averett
Keyword(s):  
Atomic Force Microscopy ◽  
Mechanical Behavior ◽  
Network Model ◽  
Large Strains ◽  
Chain Model ◽  
Force Extension ◽  
Nonlinear Spring ◽  
Force Microscopy ◽  
Atomic Force ◽  
Fibrin Clots

The multiscale mechanical behavior of individual fibrin fibers and fibrin clots was modeled by coupling atomistic simulation data and microscopic experimental data. We propose a new protofibril element composed of a nonlinear spring network, and constructed this based on molecular simulations and atomic force microscopy results to simulate the force extension behavior of fibrin fibers. This new network model also accounts for the complex interaction of protofibrils with one another, the effects of the presence of a solvent, Coulombic attraction, and other binding forces. The network model was formulated to simulate the force–extension mechanical behavior of single fibrin fibers from atomic force microscopy experiments, and shows good agreement. The validated fibrin fiber network model was then combined with a modified version of the Arruda–Boyce eight-chain model to estimate the force extension behavior of the fibrin clot at the continuum level, which shows very good correlation. The results show that our network model is able to predict the behavior of fibrin fibers as well as fibrin clots at small strains, large strains, and close to the break strain. We used the network model to explain why the mechanical response of fibrin clots and fibrin fibers deviates from worm-like chain behavior, and instead behaves like a nonlinear spring.

Measurement of the mechanical behavior of yeast membrane sensors using single-molecule atomic force microscopy

2010 ◽  
Vol 5 (4) ◽  
pp. 670-677 ◽  
Author(s):  
Jürgen J Heinisch ◽  
Vincent Dupres ◽  
David Alsteens ◽  
Yves F Dufrêne
Keyword(s):  
Atomic Force Microscopy ◽  
Mechanical Behavior ◽  
Single Molecule ◽  
Force Microscopy ◽  
Atomic Force

Surface Interaction Forces of Well-Defined, High-Density Polymer Brushes Studied by Atomic Force Microscopy. 1. Effect of Chain Length

2000 ◽  
Vol 33 (15) ◽  
pp. 5602-5607 ◽  
Author(s):  
Shinpei Yamamoto ◽  
Muhammad Ejaz ◽  
Yoshinobu Tsujii ◽  
Mutsuo Matsumoto ◽  
Takeshi Fukuda
Keyword(s):  
Atomic Force Microscopy ◽  
Chain Length ◽  
Polymer Brushes ◽  
Surface Interaction ◽  
High Density ◽  
Interaction Forces ◽  
Force Microscopy ◽  
Atomic Force

Atomic Force Microscopy of Polymer Brushes: Colloidal versus Sharp Tips

Langmuir ◽  
2010 ◽  
Vol 26 (11) ◽  
pp. 8933-8940 ◽  
Author(s):  
A. Halperin ◽  
E. B. Zhulina
Keyword(s):  
Atomic Force Microscopy ◽  
Polymer Brushes ◽  
Force Microscopy ◽  
Atomic Force
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