Home General Physiology and Biophysics 2007 General Physiology and Biophysics Vol.26, p.200-206, 2007

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Quarterly, 80 pp. per issue
Founded: 1982
ISSN  1338-4325 (online)

Published in English

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General Physiology and Biophysics Vol.26, p.200-206, 2007

Title: Photodynamic effect on melanoma cells investigated by atomic force microscopy
Author: K. Tomankova, H. Kolarova, M. Vujtek, R. Bajgar

Abstract: Atomic force microscopy (AFM) is a modern experimental method for imaging of conducting or non-conducting samples. New trends in the application of scanning probe microscopy (SPM) give us the ability to scan live cells directly in their ingenuous surroundings or in air. Our apparatus was replenished with an inverse optical microscope, so we could observe the position of the scanning tip in every individual cell. The aim of the presented study is to picture the cell surface in air. A dry scanner in non-contact or tapping mode was used in the biological application of AFM. In our work the cell line G361 was used as a biological sample. We imaged the cell line before and after induction of a photodynamic effect (PDE) by irradiation of ZnTPPS4-loaded cells with a light dose of 15 J/cm2. Individual cells before PDE induction had a smooth surface without protrusion on the entire surface. Cells after PDE induction did not have a smooth surface but their surface was rough with protrusion and in some places cleaved

Keywords: Atomic force microscopy — Photodynamic effect — Melanoma cell — Sensitizer
Year: 2007, Volume: 26, Issue: Page From: 200, Page To: 206

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