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02/04/2015 (Added to site)
Author(s): Novickij, V.; Grainys, A.; Svediene, J.; Markovskaja, S.; Paskevicius, A.; Novickij, J.

Irreversible electropermeabilization of the human pathogen Candida albicans. An in-vitro experimental study

Journal: European Biophysics Journal, 44/1-2 (2015), pp. 9-16
DOI: 10.1007/s00249-014-0996-3
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Abstract: Pathogenic fungi cause many life-threatening infections, especially among individuals with immune system dysfunction. The antifungal drugs commonly used to suppress fungal pathogens can result in long-lasting and toxic therapy. In this work, irreversible electropermeabilization was used to investigate the dynamics of the decrease in Candida albicans colony vitality after application of a pulsed electric field (PEF) and use of antifungal drugs. The fungi were subjected to single 250-µs to 2-ms (0.5-2.5 kV/cm) pulses or repeated short 5-µs pulses, and efficacy was compared. It was shown that electropermeabilization combined with antifungal agents results in rapid and more effective treatment, eliminating more than 90% of C. albicans colony-forming units in a single procedure, which is advantageous in biomedicine. It was also observed that, because of application of PEF and use of the antifungal agents, the Candida cells form cell aggregates and average live cell size is reduced by as much as 53%.



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