The dielectric behavior of nonspherical biological cell suspensions: an analytic approach.

Biophysical Journal
A Di BiasioC Cametti

Abstract

The influence of the cell shape on the dielectric and conductometric properties of biological cell suspensions has been investigated from a theoretical point of view presenting an analytical solution of the electrostatic problem in the case of prolate and oblate spheroidal geometries. The model, which extends to spheroidal geometries the approach developed by other researchers in the case of a spherical geometry, takes explicitly into account the charge distributions at the cell membrane interfaces. The presence of these charge distributions, which govern the trans-membrane potential DeltaV, produces composite dielectric spectra with two contiguous relaxation processes, known as the alpha-dispersion and the beta-dispersion. By using this approach, we present a series of dielectric spectra for different values of the different electrical parameters (the permittivity epsilon and the electrical conductivity sigma, together with the surface conductivity gamma due to the surface charge distribution) that define the whole behavior of the system. In particular, we analyze the interplay between the parameters governing the alpha-dispersion and those influencing the beta-dispersion. Even if these relaxation processes generally occur in ...Continue Reading

References

Dec 14, 1995·Biochimica Et Biophysica Acta·K Asami, T Yonezawa
Oct 17, 1998·IEEE Transactions on Bio-medical Engineering·E C Fear, M A Stuchly
Jul 20, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J LeiH Sun
Mar 15, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Lei GaoK W Yu
Jun 20, 2006·Bioelectrochemistry·A Di Biasio, C Cametti
Sep 9, 2006·Microbiology and Molecular Biology Reviews : MMBR·Kevin D Young
Jul 29, 2008·Biophysical Journal·Emil ProdanJohn H Miller
Dec 1, 1992·Biophysical Journal·K Asami, T Yamaguchi
Jul 3, 2009·The Journal of Physical Chemistry. B·Anatoliy V Goncharenko, Yia-Chung Chang

❮ Previous
Next ❯

Citations

Aug 19, 2014·BioMed Research International·Ciro CostagliolaLuigi Ambrosone
Sep 28, 2010·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A Di Biasio, C Cametti
Nov 11, 2020·Electrophoresis·Kalpani N U Galpayage DonaJianning Wei
Feb 5, 2021·European Biophysics Journal : EBJ·E Sabri, C Brosseau
Nov 30, 2018·Analytical Chemistry·Daihyun KimAlexandra Ros

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.