In Situ Biodosimetric Experiment for Space Applications

Gergely Goldschmidt, Éva Kovaliczky, József Szabó, G. Rontó, A. Bérces

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper presents the principles and application of DNA based biological UV dosimeters, as developed by Research Group for Biophysics (RGB). These dosimeters are used for assessing the biological hazard of living systems on the Earth's surface and in different waters (rivers, lakes, seas, etc.). The UV dosimetry system has also been used in the space. In dosimeters a bacterial virus, bacteriophage T7 and polycrystalline uracil thin layers have been used as biological detectors. On the Earth's surface the UV radiation induces dimer formation in phage T7 and in the uracil detector, which was evaluated by loss of viability of the phage particles and by the decrease of the characteristic optical density (OD) of uracil thin layers. Recently the development of human space activities has also increased the need to measure the biological effect of extraterrestrial solar radiation, too. The evaluation of the space samples occurred on ground, thus only the starting and the final state were taken into account. A new improved, automated method is presented below which makes data collection more efficient and also makes the dynamics of the process observable.

Original languageEnglish
Pages (from-to)247-252
Number of pages6
JournalOrigins of Life and Evolution of the Biosphere
Volume42
Issue number2
DOIs
Publication statusPublished - Jun 2012

Fingerprint

bacteriophages
uracil
dosimeters
Earth surface
biophysics
detectors
biological hazards
experiment
bacteriophage
biological effects
river water
human development
solar radiation
optical density
virus
viability
viruses
lakes
hazard
rivers

Keywords

  • Continuous measurement
  • Experimental scheme
  • Solar ultraviolet radiation
  • Uracil detector
  • UV dosimetry in space

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Space and Planetary Science

Cite this

In Situ Biodosimetric Experiment for Space Applications. / Goldschmidt, Gergely; Kovaliczky, Éva; Szabó, József; Rontó, G.; Bérces, A.

In: Origins of Life and Evolution of the Biosphere, Vol. 42, No. 2, 06.2012, p. 247-252.

Research output: Contribution to journalArticle

Goldschmidt, Gergely ; Kovaliczky, Éva ; Szabó, József ; Rontó, G. ; Bérces, A. / In Situ Biodosimetric Experiment for Space Applications. In: Origins of Life and Evolution of the Biosphere. 2012 ; Vol. 42, No. 2. pp. 247-252.
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