Conductivity Of Cell Suspensions
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Numerical analysis of impedance spectra of yeast suspensions
Analysis of impedance spectrum of electroporated biological cell suspensions allows evaluating the state of permeabilization produced by the applied electric field. In this article we used a genetic algorithm to determine parameters of a proposed model for the impedance of suspension adjusting them numerically in order to minimize the error in relation to ex
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-12
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2. Projeto e construção de um eletropermeabilizador de células biológicas / Design and construction of a biological cell electroporator
Electropermeabilization is the process of transient increase in the permeability of biological membranes of cells subjected to intense electric fields. This technique is currently still in development and has important clinical and technological applications such as electrochemotherapy and gene transfer. Electroporator is the equipment used in the generation
Publicado em: 2009
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3. Electric Conductivity and Internal Osmolality of Intact Bacterial Cells
Intact cells of Streptococcus faecalis and Micrococcus lysodeikticus were found to have high-frequency electric conductivities of 0.90 and 0.68 mho/m, respectively. These measured values, which reflect movements of ions both within the cytoplasm and within the cell wall space, were only about one-third of those calculated on the basis of determinations of th
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4. Dielectrophoretic manipulation of cells with spiral electrodes.
Electrokinetic responses of human breast cancer MDA-MB-231 cells were studied in suspensions of conductivities 18, 56, and 160 mS/m on a microelectrode array consisting of four parallel spiral electrode elements energized with phase-quadrature signals of frequencies between 100 Hz and 100 MHz. At low frequencies cells were levitated and transported toward or