Lecture_16_2011

Lecture_16_2011 - Specific capacity: C sp = / x = 10 [mF/m...

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Introduction to Biophysics Lecture 16 Electrical properties of the biological membrane
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Membrane: electrically isolating leaflet containing a mosaic of various passive an active electrical devices, controlling membrane potential. Cell membrane has High electrical resistance Low dielectric constant Very thin hydrophobic electrically isolating interface behaving like a capacitor with certain capacity (C) and resistance (R). Thus, it is possible to consider passive electric behavior of the cell as RC-element.
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Unformatted text preview: Specific capacity: C sp = / x = 10 [mF/m 2 ] x membrane thickness, 80 lipids =3.5 membrane =9 C sp defines the relation between the amount of charge (C/m 2 ) which is required to generate the membrane potential difference C sp = / Reading: Glaser 2.4.3; 3.2.3 Nelson 4.6.3. Calculate the change in the membrane potential for concentration jump Cbot/Ctop = 10 On page 477 Table 11.1 calculate Nernst potentials....
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Lecture_16_2011 - Specific capacity: C sp = / x = 10 [mF/m...

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