Detection of movement at the erythrocyte's edge by scanning phase contrast microscopy.
A time-dependent set of line scans across an erythrocyte was recorded by a phase contrast laser scanning microscope. A method for edge detection, based on a two-stage fitting procedure of the theoretical intensity distribution in a line scan of phase contrast image to the experimental one, is suggested. Time-resolved fluctuations of the human erythrocyte's edge were obtained, employing this method. The same procedure was carried out for a metallic strip yielding a test for the background noise level. The suggested method was applied in examining the effect of chemical crosslinking and thiol reduction on cell membrane fluctuations of human erythrocytes.
Bitler
A
A
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel-Aviv, Israel.
Barbul
A
A
Korenstein
R
R
D002465:Cell Movement; D004229:Dithiothreitol / Q000494:pharmacology; D004912:Erythrocytes / Q000502:physiology*; D006801:Humans; D008858:Microscopy, Phase-Contrast
D004229:Dithiothreitol