Significance of Surface Potential Measurements on Lipid Monolayers during Action of Phospholipase A on Lecithins

Nature ◽  
1971 ◽  
Vol 233 (5316) ◽  
pp. 202-204 ◽  
Author(s):  
GIUSEPPE COLACICCO
Keyword(s):  
Surface Potential ◽  
Phospholipase A ◽  
Lipid Monolayers ◽  
Surface Potential Measurements

scholarly journals Interaction of soluble and membrane proteins with monolayers of glycosphingolipids

1982 ◽  
Vol 203 (3) ◽  
pp. 717-725 ◽  
Author(s):  
G D Fidelio ◽  
B Maggio ◽  
F A Cumar
Keyword(s):  
Membrane Proteins ◽  
Surface Potential ◽  
Protein Interactions ◽  
Lipid Monolayers ◽  
Anionic Phospholipids ◽  
Surface Potential Measurements ◽  
Lipid Protein Interaction ◽  
Lipid Protein Interactions ◽  
The Individual ◽  
Free Interfaces

1. The interactions of four proteins (albumin, myelin basic protein, melittin and glycophorin) with eight neutral or acidic glycosphingolipids, including sulphatides and gangliosides, five zwitterionic or anionic phospholipids and some of their mixtures, were studied in lipid monolayers at the air/145 mM-NaCl interface. 2. In lipid-free interfaces, the surface pressure and surface potential reached by either soluble or integral membrane proteins did not reveal marked differences. 3. All the proteins studied showed interactions with each of the lipids but the maximal interactions were found for basic proteins with acidic glycosphingolipids. 4. Surface-potential measurements indicated that different dipolar organizations at the interface can be adopted by lipid-protein interactions showing the same value for surface free energy. 5. The individual surface properties of either the lipid of protein component are modified as a consequence of the lipid-protein interaction. 6. In mixed-lipid monolayers, the composition of the interface may affect the lipid-protein interactions in a non-proportional manner with respect to the relative amount of the individual lipid components.

Formation of Metal Silicide Nanodots on Ultrathin SiO2 for Floating Gate Application

2009 ◽  
Vol 154 ◽  
pp. 95-100 ◽  
Author(s):  
Seiichi Miyazaki ◽  
Mitsuhisa Ikeda ◽  
Katsunori Makihara ◽  
K. Shimanoe ◽  
R. Matsumoto
Keyword(s):  
Surface Potential ◽  
Room Temperature ◽  
Areal Density ◽  
Film Deposition ◽  
Floating Gate ◽  
Metal Silicide ◽  
Kelvin Probe ◽  
Measuring Surface ◽  
Surface Potential Measurements ◽  
Mis Capacitors

We demonstrated a new fabrication method of Pt- and Ni-silicide nanodots with an areal density of the order of ~1011 cm-2 on SiO2 through the process steps of ultrathin metal film deposition on pre-grown Si-QDs and subsequent remote H2 plasma treatments at room temperature. Verification of electrical separation among silicide nanodots was made by measuring surface potential changes due to electron injection and extraction using an AFM/Kelvin probe technique. Photoemission measurements confirm a deeper potential well of silicide nanodots than Si-QDs and a resultant superior charge retention was also verified by surface potential measurements after charging to and discharging. Also, the advantage in many electron storage per silicide nanodot was demonstrated in C-V characteristics of MIS capacitors with silicide nanodots FGs.

Understanding Calcite Wettability Alteration through Surface Potential Measurements and Molecular Simulations

2017 ◽  
Vol 121 (50) ◽  
pp. 28017-28030 ◽  
Author(s):  
Sarah M. Walker ◽  
Maria C. Marcano ◽  
Sooyeon Kim ◽  
Sandra D. Taylor ◽  
Udo Becker
Keyword(s):  
Surface Potential ◽  
Molecular Simulations ◽  
Wettability Alteration ◽  
Surface Potential Measurements

The inversion of surface potential measurements to determine crack size and shape

1988 ◽  
Vol 64 (5) ◽  
pp. 2638-2647 ◽  
Author(s):  
M. P. Connolly ◽  
D. H. Michael ◽  
R. Collins
Keyword(s):  
Surface Potential ◽  
Crack Size ◽  
Size And Shape ◽  
Surface Potential Measurements

scholarly journals Standardization of surface potential measurements of graphene domains

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Vishal Panchal ◽  
Ruth Pearce ◽  
Rositza Yakimova ◽  
Alexander Tzalenchuk ◽  
Olga Kazakova
Keyword(s):  
Surface Potential ◽  
Surface Potential Measurements
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