Microscopic dynamics in some engineering thermoplastics and a polymer membrane

2004 ◽  
Vol 350 (1-3) ◽  
pp. E971-E973 ◽  
Author(s):  
S Arrese-Igor ◽  
I Quintana ◽  
A Arbe ◽  
J Colmenero ◽  
A Alegrı́a ◽  
...  
Keyword(s):  
Polymer Membrane ◽  
Microscopic Dynamics

Preparation and adsorption characteristics of lysozyme-imprinted polymer membrane

2019 ◽  
Vol 37 (4) ◽  
pp. 392
Author(s):  
Yuanyuan LI ◽  
Xin ZHANG ◽  
Weijie CHEN ◽  
Hongyang LIU ◽  
Liquan SUN ◽  
...  
Keyword(s):  
Polymer Membrane ◽  
Imprinted Polymer ◽  
Adsorption Characteristics

scholarly journals Towards bio-inspired artificial muscle: a mechanism based on electro-osmotic flow simulated using dissipative particle dynamics

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ramin Zakeri
Keyword(s):  
Zeta Potential ◽  
Electric Field ◽  
Dissipative Particle Dynamics ◽  
Artificial Muscle ◽  
Particle Dynamics ◽  
Polymer Membrane ◽  
Channel Width ◽  
Micro Channel ◽  
Osmotic Flow ◽  
Electro Osmotic Flow

AbstractOne of the unresolved issues in physiology is how exactly myosin moves in a filament as the smallest responsible organ for contracting of a natural muscle. In this research, inspired by nature, a model is presented consisting of DPD (dissipative particle dynamics) particles driven by electro-osmotic flow (EOF) in micro channel that a thin movable impermeable polymer membrane has been attached across channel width, thus momentum of fluid can directly transfer to myosin stem. At the first, by validation of electro-osmotic flow in micro channel in different conditions with accuracy of less than 10 percentage error compared to analytical results, the DPD results have been developed to displacement of an impermeable polymer membrane in EOF. It has been shown that by the presence of electric field of 250 V/m and Zeta potential − 25 mV and the dimensionless ratio of the channel width to the thickness of the electric double layer or kH = 8, about 15% displacement in 8 s time will be obtained compared to channel width. The influential parameters on the displacement of the polymer membrane from DPD particles in EOF such as changes in electric field, ion concentration, zeta potential effect, polymer material and the amount of membrane elasticity have been investigated which in each cases, the radius of gyration and auto correlation velocity of different polymer membrane cases have been compared together. This simulation method in addition of probably helping understand natural myosin displacement mechanism, can be extended to design the contraction of an artificial muscle tissue close to nature.

Microscopic dynamics of C60-polymers

1999 ◽  
Vol 103 (1-3) ◽  
pp. 2443-2444 ◽  
Author(s):  
B. Renker ◽  
H. Schober ◽  
S. Lebedkin
Keyword(s):  
Microscopic Dynamics
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