Abstract
The selectivity of the bacterial porin OmpF from E. coli to small inorganic ions has been investigated by single channel experiments. In a recent study, we showed that the OmpF channel may function as a pH-regulated, biological, nanofluidic diode (J. Phys. Chem. B 110 (2006) 21205). Here we show that Reversal potential measurements done under asymmetric conditions of pH and salt concentration provide valuable information about the channel fixed charge distribution that cannot be extracted from the rectification displayed in current-voltage curves.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
