Table 1.
Electrical constants of atrial cells measured by DEP
Isotonic sucrose/glucose medium + CaCl2 and MgCl2 | Isotonic sucrose/glucose medium | Hypotonic sucrose/glucose medium | |
---|---|---|---|
Cytoplasm resistivity, Ω·cm | 126 ± 11 (5) | 271 ± 49 (5)∗ | 389 ± 66 (6)∗ |
Cytoplasm conductance, S·m−1 | 0.80 ± 0.07(5) | 0.38 ± 0.08 (5)∗ | 0.26 ± 0.04 (6)∗ |
Membrane resistance, kΩ·7cm2 | 6.70 ± 0.57 (5) | 4.90 ± 1.32 (6)∗ | 3.10 ± 1.28 (6)∗ |
Membrane capacitance, μF·cm−2 | 1.01 ± 0.38 (5) | 0.98 ± 0.25 (6) | 1.06 ± 0.25 (6) |
Cell diameter, μm | 12.4 ± 0.6 (5) | 12.1 ± 0.7 (6) | 14.8 ± 0.4 (6)∗ |
Values for membrane conductance refer to that offered by the cell suspension. Values for membrane conductance refer to that offered by the cell suspension.
p < 0.05 with respect to values in sucrose/glucose medium.