Thickness and surface density of extracellular polymers on Acidithiobacillus ferrooxidans.
In vivo force microscopy measurements of Acidithiobacillus ferrooxidans revealed a repulsive force that was due to the presence of extracellular polymers on the bacterium's surface. Measured force-distance profiles were fit to steric force theory to estimate the density and thickness values of these exopolymers. The polymer densities were 3.4 x 10(16) to 7.1 x 10(16) molecules m(-2), and the equilibrium thickness was 29 nm.
Taylor
Eric S
ES
The Ohio State University, 275 Mendenhall Laboratory, 125. S. Oval Mall, Columbus, OH 43210, USA.
Lower
Steven K
SK
D042763:Acidithiobacillus / Q000648:ultrastructure*; D018625:Microscopy, Atomic Force; D011135:Polysaccharides, Bacterial / Q000648:ultrastructure*
D011135:Polysaccharides, Bacterial