Part 1. Direct Measurement of Depletion Attraction and Thin Film Viscosity between Lipid Bilayers in Aqueous Polyethylene Glycol Solutions

1998 ◽  
Vol 31 (23) ◽  
pp. 8250-8257 ◽  
Author(s):  
Tonya L. Kuhl ◽  
Alan D. Berman ◽  
Sek Wen Hui ◽  
Jacob N. Israelachvili
Keyword(s):  
Thin Film ◽  
Polyethylene Glycol ◽  
Lipid Bilayers ◽  
Direct Measurement ◽  
Thin Film Viscosity ◽  
Film Viscosity

Lubricant Flow and Evaporation Model for Heat Assisted Magnetic Recording Systems Including Reactive End-Group Effects and Thin-Film Viscosity

2012 ◽  
Author(s):  
Joanna E. Bechtel ◽  
David B. Bogy
Keyword(s):  
Thin Film ◽  
Film Thickness ◽  
Magnetic Recording ◽  
Disjoining Pressure ◽  
Thickness Dependence ◽  
Heat Assisted Magnetic Recording ◽  
Lubricant Flow ◽  
Simulation Results ◽  
Thin Film Viscosity ◽  
Film Viscosity

The lubricant applied to the disk in a hard drive is a critical component for head-disk interface reliability. In Heat Assisted Magnetic Recording (HAMR), the heat supplied to the disk by the laser will add new thermal considerations to lubricant performance. Investigations into how the lubricant behaves at the small time and length scales seen in HAMR systems need to be conducted numerically. Published works on HAMR lubricant modeling have considered only the van der Waals contribution to disjoining pressure, commonly called the dispersive component, and do not consider the film thickness dependence of viscosity. However, lubricants with reactive end groups such as Fomblin Zdol are widely used, and such simple disjoining pressure and viscosity models do not capture certain lubricant behavior. We have developed a simulation tool that incorporates film thickness dependencies of viscosity and polar and dispersive disjoining pressure into a continuum lubrication model. We investigate the effect of initial thickness on lubricant flow and evaporation under HAMR write conditions considering both components of disjoining pressure and thin-film viscosity. Simulation results indicate the effect of including polar disjoining pressure depends on the initial lubricant thickness. The inclusion of viscosity thickness dependence does not affect simulation results under scanning laser conditions but will be important in reflow simulations.

Molecular dynamics characterization of thin film viscosity for EHL simulation

2006 ◽  
Vol 21 (3) ◽  
pp. 217-225 ◽  
Author(s):  
A. Martini ◽  
Y. Liu ◽  
R.Q. Snurr ◽  
Q. J. Wang
Keyword(s):  
Thin Film ◽  
Molecular Dynamics ◽  
Thin Film Viscosity ◽  
Film Viscosity

Direct Measurement of Polyethylene Glycol Induced Depletion Attraction between Lipid Bilayers

Langmuir ◽  
1996 ◽  
Vol 12 (12) ◽  
pp. 3003-3014 ◽  
Author(s):  
Tonya Kuhl ◽  
Yuqing Guo ◽  
James L. Alderfer ◽  
Alan D. Berman ◽  
Deborah Leckband ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Lipid Bilayers ◽  
Direct Measurement

Electrochemical properties of tethered lipid bilayers on thin film silver substrates

2021 ◽  
pp. 138726
Author(s):  
Indrė Aleknavičienė ◽  
Marija Jankunec ◽  
Tadas Penkauskas ◽  
Gintaras Valinčius
Keyword(s):  
Thin Film ◽  
Electrochemical Properties ◽  
Lipid Bilayers

Direct Measurement of Ion Redistribution and Resulting Modification of Chemical Equilibria in Polymer Thin Film Light-Emitting Electrochemical Cells

2018 ◽  
Vol 10 (45) ◽  
pp. 39100-39106 ◽  
Author(s):  
Maciej Kawecki ◽  
Roland Hany ◽  
Matthias Diethelm ◽  
Sandra Jenatsch ◽  
Quirin Grossmann ◽  
...  
Keyword(s):  
Thin Film ◽  
Direct Measurement ◽  
Electrochemical Cells ◽  
Polymer Thin Film ◽  
Light Emitting ◽  
Chemical Equilibria

scholarly journals Thin-film silica sol-gels doped with ion-responsive fluorescent lipid bilayers

1999 ◽  
Author(s):  
Darryl Y. Sasaki ◽  
Lauren E. Shea ◽  
Michael B. Sinclair
Keyword(s):  
Thin Film ◽  
Lipid Bilayers ◽  
Silica Sol ◽  
Fluorescent Lipid
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