Mechanisms of laser damage to Chlorella cells

Mechanisms of laser damage to Chlorella cells

A study was made of the interaction of laser radiation with Chlorella microalgae cells. The cell damage was found to be a function of the laser wavelength and power, and of the temperature of the cell suspension during irradiation. Possible damage mechanisms were considered, including local heating...

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Bibliographische Detailangaben
Veröffentlicht in:Sov. J. Quant. Electron. (Engl. Transl.); (United States) 1977-04, Vol.7 (4), p.422-424
Hauptverfasser: Gavrilov, A G, Piskunkova, N F, Rubin, L B
Format: Artikel
Sprache:eng
Schlagworte:
560120 - Radiation Effects on Biochemicals, Cells, & Tissue Culture
ALGAE
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOMASS
ELECTROMAGNETIC RADIATION
ENERGY SOURCES
LASER RADIATION
LASERS
PLANTS
RADIATION EFFECTS
RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT
RADIATIONS
RENEWABLE ENERGY SOURCES
RUBY LASERS
SOLID STATE LASERS
TEMPERATURE DEPENDENCE
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Beschreibung
Zusammenfassung:A study was made of the interaction of laser radiation with Chlorella microalgae cells. The cell damage was found to be a function of the laser wavelength and power, and of the temperature of the cell suspension during irradiation. Possible damage mechanisms were considered, including local heating due to absorption of ruby laser radiation by intracell pigments when energy migration processes were saturated, heating-induced breaking of molecular bonds, and subsequent denaturation of biological membranes. These hypotheses were confirmed by spectrometric and pyrometric measurements.
ISSN:0049-1748
2169-530X
DOI:10.1070/QE1977v007n04ABEH009701