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Relating membrane potential to impedance spectroscopy

Eugen Gheorghiu
Eugen Gheorghiu
   | Dec 18, 2011
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Article Category: Articles
Published Online: Dec 18, 2011
Page range: 93 - 97
Received: Nov 23, 2011
DOI: https://doi.org/10.5617/jeb.214
Keywords
© 2011 Eugen Gheorghiu, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1A

Permittivity spectra: Δϕ0 = -150 mV (solid), Δϕ0 = -75 mV (dashed), Δϕ0 ~ 0 V (dot-dashed line)
Permittivity spectra: Δϕ0 = -150 mV (solid), Δϕ0 = -75 mV (dashed), Δϕ0 ~ 0 V (dot-dashed line)

Fig. 1B

Spectra of Impedance magnitude relative to the value at 1 kHz: Δϕ0=-150 mV (solid), Δϕ0 = -75 mV (dashed), Δϕ0 ~ 0 V (dot-dashed line)
Spectra of Impedance magnitude relative to the value at 1 kHz: Δϕ0=-150 mV (solid), Δϕ0 = -75 mV (dashed), Δϕ0 ~ 0 V (dot-dashed line)

Fig. 1C

Phase Spectra: Δϕ0=-150 mV (solid), Δϕ0=-75mV(dashed), Δϕ0 ~0V(dot-dashed line)
Phase Spectra: Δϕ0=-150 mV (solid), Δϕ0=-75mV(dashed), Δϕ0 ~0V(dot-dashed line)

Fig.2.A

Permittivity spectra for suspensions of large cells (R1 ~ 0.5 mm), Δϕ0 = -150 mV; σ2 = 10-6 S/m (solid); σ2 = 10-5 S/m (dashed line)
Permittivity spectra for suspensions of large cells (R1 ~ 0.5 mm), Δϕ0 = -150 mV; σ2 = 10-6 S/m (solid); σ2 = 10-5 S/m (dashed line)

Fig. 2.B

Spectra of Impedance magnitude relative to the value at 100 Hz for suspensions of large cells (R1 ~ 0.5 mm), Δϕ0 = -150 mV; σ2 = 10-6 S/m (solid line); σ2 = 10-5 S/m (dashed)
Spectra of Impedance magnitude relative to the value at 100 Hz for suspensions of large cells (R1 ~ 0.5 mm), Δϕ0 = -150 mV; σ2 = 10-6 S/m (solid line); σ2 = 10-5 S/m (dashed)

Fig. 2.c

Phase Spectra for suspensions of large cells (R1 ~ 0.5 mm), Δϕ0 = -150 mV; σ2 = 10-6 S/m (solid line); σ2 = 10-5 S/m (dashed)
Phase Spectra for suspensions of large cells (R1 ~ 0.5 mm), Δϕ0 = -150 mV; σ2 = 10-6 S/m (solid line); σ2 = 10-5 S/m (dashed)

Fig. 3.A

Permittivity spectra for suspensions of charged liposomes: σ3 = 0.377 S/m & D3 = 5×10-9 m2/s (solid); σ3 = 0.377 S/m & D3 = 5×10-10 m2/s (dashed); σ3 = 0.1 S/m & D3 = 5×10-10 m2/s (dot-dashed)
Permittivity spectra for suspensions of charged liposomes: σ3 = 0.377 S/m & D3 = 5×10-9 m2/s (solid); σ3 = 0.377 S/m & D3 = 5×10-10 m2/s (dashed); σ3 = 0.1 S/m & D3 = 5×10-10 m2/s (dot-dashed)

Fig. 3.B

Spectra of Impedance magnitude relative to the value at 100 Hz for suspensions of charged liposomes σ3 = 0.377 S/m & D3 = 5 ×10-9 m2/s (solid); σ3 = 0.377 S/m & D3 = 5×10-10 m2/s (dashed); σ3 = 0.1 S/m & D3 = 5×10-10 m2/s (dot-dashed)
Spectra of Impedance magnitude relative to the value at 100 Hz for suspensions of charged liposomes σ3 = 0.377 S/m & D3 = 5 ×10-9 m2/s (solid); σ3 = 0.377 S/m & D3 = 5×10-10 m2/s (dashed); σ3 = 0.1 S/m & D3 = 5×10-10 m2/s (dot-dashed)

Fig. 3.C

Phase Spectra for suspension of charged liposomes σ3 = 0.377 S/m & D3 = 5×10-9 m2/s (solid); σ3 = 0.377 S/m & D3 = 5×10-10 m2/s (dashed); σ3 ~ 0.1 S/m & D3 = 5×10-10 m2/s (dot-dashed)
Phase Spectra for suspension of charged liposomes σ3 = 0.377 S/m & D3 = 5×10-9 m2/s (solid); σ3 = 0.377 S/m & D3 = 5×10-10 m2/s (dashed); σ3 ~ 0.1 S/m & D3 = 5×10-10 m2/s (dot-dashed)
eISSN:
1891-5469
Language:
English
Publication timeframe:
Volume Open
Journal Subjects:
Engineering, Bioengineering and Biomedical Engineering, Biomedical Electronics, Life Sciences, Biophysics, Medicine, Biomedical Engineering, Physics, Spectroscopy and Metrology
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