scholarly journals Plasma Membrane Surface Potential: Dual Effects upon Ion Uptake and Toxicity

2010 ◽  
Vol 155 (2) ◽  
pp. 808-820 ◽  
Author(s):  
Peng Wang ◽  
Thomas B. Kinraide ◽  
Dongmei Zhou ◽  
Peter M. Kopittke ◽  
Willie J.G.M. Peijnenburg
Keyword(s):  
Plasma Membrane ◽  
Surface Potential ◽  
Membrane Surface ◽  
Ion Uptake ◽  
Plasma Membrane Surface

scholarly journals Changes in Plasma Membrane Surface Potential of PC12 Cells as Measured by Kelvin Probe Force Microscopy

PLoS ONE ◽  
2012 ◽  
Vol 7 (4) ◽  
pp. e33849 ◽  
Author(s):  
Chia-Chang Tsai ◽  
Hui-Hsing Hung ◽  
Chien-Pang Liu ◽  
Yit-Tsong Chen ◽  
Chien-Yuan Pan
Keyword(s):  
Plasma Membrane ◽  
Pc12 Cells ◽  
Surface Potential ◽  
Membrane Surface ◽  
Kelvin Probe Force Microscopy ◽  
Kelvin Probe ◽  
Force Microscopy ◽  
Plasma Membrane Surface

scholarly journals Paracrystalline arrays of membrane-to-membrane cross bridges associated with the inner surface of plasma membrane

1978 ◽  
Vol 77 (2) ◽  
pp. 323-328 ◽  
Author(s):  
WW Franke ◽  
C Grund ◽  
E Schmid ◽  
E Mandelkow
Keyword(s):  
Plasma Membrane ◽  
Plasma Membranes ◽  
Cultured Cells ◽  
Membrane Surface ◽  
Hexagonal Lattice ◽  
Interparticle Distance ◽  
Macromolecular Complexes ◽  
Inner Surface ◽  
Cross Bridges ◽  
Plasma Membrane Surface

In cultured cells of the rat kangaroo PtK2 line, veils of the cell surface were observed which consisted of only plasma membrane and paracrystalline arrays of membrane-associated particles sandwiched in between. These membrane-to-membrane cross-bridging 9-to 11-nm wide particles were somewhat coumellar-shaped and were arranged on a hexagonal lattice with an interparticle distance of 16nm. At higher magnification, they revealed an unstained core, thus suggesting a ringlike substructure. Similar arrays of paracrystal-containing veils, which were rather variable in size and frequency, were also observed in other cultured cells. It is hypothesized that these paracrystals represent protein macromolecular complexes associated with the inner plasma membrane surface which crystallize when plasma membranes come into close intracellular contact and other components of the subsurface network are removed.

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