Dielectric behavior of the frog lens in the 100 Hz to 500 MHz range. Simulation with an allocated ellipsoidal-shells model
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TLDR
In an attempt to correlate the passive electrical properties of the lens tissue with its structure, ac admittances are measured for isolated frog lenses, lens nuclei, and homogenate of cortical fiber cells, over the frequency range 10(2)-5.10(8) Hz to reveal relative permittivity and conductivity for the cell interior.About:
This article is published in Biophysical Journal.The article was published on 1991-01-01 and is currently open access. It has received 23 citations till now. The article focuses on the topics: Permittivity & Relative permittivity.read more
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The Dielectric Response of Spherical Live Cells in Suspension: An Analytic Solution
TL;DR: An analytic solution is given for the dielectric function, which is shown to account for the alpha- and beta-plateaus seen in many experimental data.
Journal ArticleDOI
Stark effect (electroabsorption) spectroscopy of photosynthetic reaction centers at 1.5K: Evidence that the special pair has a large excited-state polarizability
TL;DR: In this paper, it was shown that the dipolar character of the special pair of Rb. sphaeroides is related to the carotenoid excited states in ordered protein matrices, and the observed polarizability of ∗P can be used to estimate a likely lower limit for the matrix electrostatic field in the reaction center.
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Stark effect spectroscopy of carotenoids in photosynthetic antenna and reaction center complexes.
TL;DR: The results for spheroidenone should be useful for studies of mutant proteins, since mutant strains are often grown semi-aerobically to minimize reversion, and the data provide a quantitative basis for the analysis of carotenoid bandshifts which are used to measure transmembrane potential.
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Dielectric properties of rat liver in vivo: analysis by modeling hepatocytes in the tissue architecture
TL;DR: Analysis by simulations based on the EMT-DDI revealed that this theory can predict the effective size and shape of hepatic cell plates within the liver tissue, and values of the specific capacitance for plasma, nuclear and mitochondrial membranes associated with the hepatocyte, and cytosolic as well as nucleoplasmic conductivities of physiological interest.
Journal ArticleDOI
Stark effect spectroscopy of bacteriochlorophyll in light-harvesting complexes from photosynthetic bacteria
TL;DR: In this paper, the effects of an applied electric field on the Q y absorption and fluorescence spectra of three antenna complexes from photosynthetic bacteria have been measured at 77 K.
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