Effects of near-infrared laser and superluminous diode irradiationon Escherichia coli division rate
Karu, T.; Tiphlova, O.; Samokhina, M.; Diamantopoulos, C.; Sarantsev, V.P.; Shveikin, V.
Quantum Electronics, IEEE Journal of
Volume 26, Issue 12, Dec 1990 Page(s):2162 - 2165
Digital Object Identifier 10.1109/3.64353
Summary:An investigation is conducted of the effect of a 1300-nm
continuous-wave (CW) laser diode 950-nm modulated superluminous diode
which had a fixed average power density of 1.2×103 W/m
2 at all variable repetition rates of 2, 26, 700, 1000, and
5000 Hz and had an equivalent pulse duration of 410, 31.1, 1.15, 0.82,
and 0.16 ms, respectively. The effect of both diodes on the rate of
Escherichia coli WP2 division was examined. It was found that the
radiation of the CW mode of the 1300-nm laser diode increased the
division of E. coli in the dose range of 0.9-9.0 J/cm2. The
950-nm pulsed irradiation increased or inhibited the division rate of
bacteria depending on the pulsing frequency and/or pulse duration
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