scholarly journals Temperature-induced molecular transport through polymer multilayers coated with PNIPAM microgels

2015 ◽  
Vol 17 (19) ◽  
pp. 12771-12777 ◽  
Author(s):  
A. S. Vikulina ◽  
S. T. Aleed ◽  
T. Paulraj ◽  
Yu. A. Vladimirov ◽  
C. Duschl ◽  
...  
Keyword(s):  
Polymer Films ◽  
Molecular Transport ◽  
Polyelectrolyte Multilayers ◽  
Composite Polymer ◽  
Temperature Controlled

Composite polymer films with temperature controlled permeability are designed by coating soft polyelectrolyte multilayers with PNIPAM microgels.

Studies on PEO-based sodium ion conducting composite polymer films

Ionics ◽  
2007 ◽  
Vol 14 (3) ◽  
pp. 255-262 ◽  
Author(s):  
Saumya R. Mohapatra ◽  
Awalendra K. Thakur ◽  
R. N. P. Choudhary
Keyword(s):  
Polymer Films ◽  
Sodium Ion ◽  
Composite Polymer ◽  
Conducting Composite ◽  
Ion Conducting

Fluorescence Recovery After Photobleaching in Ultrathin Polymer Films

2017 ◽  
Author(s):  
Praneet Prakash ◽  
Suman Pahal ◽  
Manoj Varma
Keyword(s):  
Aqueous Medium ◽  
Polymer Films ◽  
Fluorescence Recovery After Photobleaching ◽  
Numerical Study ◽  
Single Cells ◽  
Surrounding Medium ◽  
Critical Role ◽  
Molecular Transport ◽  
Fluorescence Recovery ◽  
Important Conclusion

Fluorescence recovery after photobleaching (FRAP) is a widely used technique to study transport of molecules in biological systems. Recently, FRAP has been used to study molecular transport in polyelectrolyte multilayers (PEMs). Through numerical simulations verified by experiments, we show that the FRAP behaviour of PEM films in an aqueous medium differs significantly from that in previously explored systems such as single cells. This is because fluorescence recovery can take place through the aqueous medium surrounding the PEM film. Our simulations show the critical role of the time scale of the different processes namely, diffusion through PEM, diffusion through surrounding medium and the unbinding rate of fluorophore labelled species in the interpretation of FRAP data. An important conclusion from our numerical and experimental study is that, for ultrathin PEM films ~ 100 nm thicknesses, recovery is dominated through solution medium and hence, classical FRAP analysis is not sufficient to probe diffusion in PEM. Our numerical study reveals several aspect of FRAP phenomena in thin polymer films which are critical for the proper interpretation of experimental data.

UV light-switchable transparent polymer films and invisible luminescent inks based on carbon dots and lanthanide complexes

2016 ◽  
Vol 4 (30) ◽  
pp. 7253-7259 ◽  
Author(s):  
Yu Wang ◽  
Klára Čépe ◽  
Radek Zbořil
Keyword(s):  
Polymer Films ◽  
Carbon Dots ◽  
Lanthanide Complexes ◽  
Uv Light ◽  
Simple Approach ◽  
Composite Polymer ◽  
Transparent Composite

We present a simple approach for the preparation of UV light-switchable transparent composite polymer films and invisible luminescent inks based on the combination of carbon dots (CDs) and trisdipicolinate lanthanide complexes.

MOLECULAR TRANSPORT OF ORGANIC LIQUIDS THROUGH POLYMER FILMS

1989 ◽  
Vol 29 (2-3) ◽  
pp. 319-363 ◽  
Author(s):  
Tejraj M. Aminabhavi ◽  
U. Shanthamurthy Aithal ◽  
Shyam S. Shukla
Keyword(s):  
Polymer Films ◽  
Molecular Transport ◽  
Organic Liquids

Autonomic Molecular Transport by Polymer Films Containing Programmed Chemical Potential Gradients

2015 ◽  
Vol 137 (15) ◽  
pp. 5066-5073 ◽  
Author(s):  
Chunjie Zhang ◽  
Amit Sitt ◽  
Hyung-Jun Koo ◽  
Kristopher V. Waynant ◽  
Henry Hess ◽  
...  
Keyword(s):  
Polymer Films ◽  
Chemical Potential ◽  
Molecular Transport ◽  
Potential Gradients ◽  
Chemical Potential Gradients
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