Interactions of a smart cationic polyelectrolyte based on hydroxypropylcellulose with an anionic surfactant

2007 ◽  
Vol 107 (5) ◽  
pp. 3184-3189 ◽  
Author(s):  
Kamila Rosół ◽  
Krzysztof Szczubiałka ◽  
Barbara Jachimska ◽  
Szczepan Zapotoczny ◽  
Maria Nowakowska
2005 ◽  
Vol 67 (4) ◽  
pp. 520-521 ◽  
Author(s):  
I. P. Sergeeva ◽  
T. B. Ermakova ◽  
A. D. Anuchkina ◽  
V. D. Sobolev ◽  
N. V. Churaev

2000 ◽  
Vol 104 (49) ◽  
pp. 11689-11694 ◽  
Author(s):  
Per M. Claesson ◽  
Magnus Bergström ◽  
Andra Dedinaite ◽  
Mikael Kjellin ◽  
Jean-Francois Legrand ◽  
...  

2002 ◽  
Vol 106 (44) ◽  
pp. 11412-11419 ◽  
Author(s):  
Magnus Bergström ◽  
U. R. Mikael Kjellin ◽  
Per M. Claesson ◽  
Jan Skov Pedersen ◽  
Martin M. Nielsen

2019 ◽  
Author(s):  
HanByul Chang ◽  
Paul Ohno ◽  
Yangdongling Liu ◽  
Franz Geiger

We report the detection of charge reversal induced by the adsorption of a cationic polyelectrolyte, poly(allylamine) hydrochloride (PAH), to buried supported lipid bilayers (SLBs), used as idealized model biological membranes. We observe changes in the surface potential in isolation from other contributors to the total SHG response by extracting the phase-shifted potential-dependent third-order susceptibility from the overall SHG signal. We demonstrate the utility of this technique in detecting both the sign of the surface potential and the point of charge reversal at buried interfaces without any prior information or complementary techniques<i>.</i>Furthermore, isolation of the second-order susceptibility contribution from the overall SHG response allows us to directly monitor changes in the Stern Layer. Finally, we characterize the Stern and Diffuse Layers over single-component SLBs formed from three different zwitterionic lipids of different gel-to-fluid phase transition temperatures (T<sub>m</sub>s). We determine whether the surface potential changes with the physical phase state (gel, transitioning, or fluid) of the SLB and incorporate 20 percent of negatively charged lipids to the zwitterionic SLB to investigate how the surface potential changes with surface charge.


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