Low frequency electrorotation of fixed red blood cells.

Abstract:

:Electrorotation of fixed red blood cells has been investigated in the frequency range between 16 Hz and 30 MHz. The rotation was studied as a function of electrolyte conductivity and surface charge density. Between 16 Hz and 1 kHz, fixed red blood cells undergo cofield rotation. The maximum of cofield rotation occurs between 30 and 70 Hz. The position of the maximum depends weakly on the bulk electrolyte conductivity and surface charge density. Below 3.5 mS/m, the cofield rotation peak is broadened and shifted to higher frequencies accompanied by a decrease of the rotation speed. Surface charge reduction leads to a decrease of the rotation speed in the low frequency range. These observations are consistent with the recently developed electroosmotic theory of low frequency electrorotation.

journal_name

Biophys J

journal_title

Biophysical journal

authors

Georgieva R,Neu B,Shilov VM,Knippel E,Budde A,Latza R,Donath E,Kiesewetter H,Bäumler H

doi

10.1016/S0006-3495(98)77918-4

subject

Has Abstract

pub_date

1998-04-01 00:00:00

pages

2114-20

issue

4

eissn

0006-3495

issn

1542-0086

pii

S0006-3495(98)77918-4

journal_volume

74

pub_type

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