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. 2006 Jan 6;90(7):2600–2611. doi: 10.1529/biophysj.105.072587

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Copyright © 2006, Biophysical Society

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Extracellular sheet resistance in cell adhesion for exchange of bulk electrolyte. (a, left) Color-coded phase map of negative relative change of fluorescence for a narrow stripe of HEK293 cell on fibronectin in a bath electrolyte with a resistivity . The green line marks the periphery of cell adhesion. (a, right) Phase profile fitted with sheet resistance . (b, left) Phase map for narrow stripe at a bulk resistivity . (b, right) Phase profile fitted with . (c, left) Complete phase map after exchange of the bath back to a resistivity . (c, right) Phase profile fitted with . The frequencies are indicated in the figure. The color code is given in Fig. 5. The phase in the free membrane is marked by horizontal lines.

Inline graphic — Extracellular sheet resistance in cell adhesion for exchange of bulk electrolyte. (a, left) Color-coded phase map of negative relative change of fluorescence for a narrow stripe of HEK293 cell on fibronectin in a bath electrolyte with a resistivity . The green line marks the periphery of cell adhesion. (a, right) Phase profile fitted with sheet resistance . (b, left) Phase map for narrow stripe at a bulk resistivity . (b, right) Phase profile fitted with . (c, left) Complete phase map after exchange of the bath back to a resistivity . (c, right) Phase profile fitted with . The frequencies are indicated in the figure. The color code is given in Fig. 5. The phase in the free membrane is marked by horizontal lines.