Published August 1982 | Version v1
Journal article Metadata-only

The study of formation of single-strand breaks in the DNA chain under picosecond laser UV irradiation

Creators

  • 1. AN SSSR, Moscow. Inst. Spektroskopii
  • 2. AN SSSR, Moscow. Inst. Molekulyarnoj Biologii

Description

The effect of formation of single-strand non-reparable breaks in the DNA chain of plasmid pBR 322 under picosecond laser UV irradiation with the intensity of approximately 1013 W/m2 and lambda = 266-316 nm is studied. The breaks are shown to result from two-step excitation of DNA bases as well as from the formation of two-photon water radicals. The lower limit of quantum yield of single-strand breaks formation is approximately 10-5 - 10-6. (Auth.)

Additional details

Publishing Information

Journal Title
Photobiochem. Photobiophys.
Journal Volume
4
Journal Issue
1-2
Series
Photobiochem. Photobiophys.
Journal Page Range
87-93
ISSN
0165-8646

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
14717248
Subject category
S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
Descriptors DEI
CHEMICAL RADIATION EFFECTS; DNA; ESCHERICHIA COLI; LASER RADIATION; MUTATION FREQUENCY; NEAR ULTRAVIOLET RADIATION; PLASMIDS; RADICALS; STRAND BREAKS; SURVIVAL CURVES; WATER
Descriptors DEC
BACTERIA; CELL CONSTITUENTS; ELECTROMAGNETIC RADIATION; HYDROGEN COMPOUNDS; MICROORGANISMS; NUCLEIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; RADIATION EFFECTS; RADIATIONS; ULTRAVIOLET RADIATION