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Takashi Ito

Researcher at Florida State University College of Arts and Sciences

Publications -  20
Citations -  388

Takashi Ito is an academic researcher from Florida State University College of Arts and Sciences. The author has contributed to research in topics: Synchrotron radiation & Absorption (electromagnetic radiation). The author has an hindex of 12, co-authored 20 publications receiving 381 citations. Previous affiliations of Takashi Ito include Institute of Medical Science.

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Journal ArticleDOI

ACTION SPECTRA IN ULTRAVIOLET WAVELENGTHS (150‐250 nm) FOR INACTIVATION AND MUTAGENESIS OF Bacillus subtilis SPORES OBTAINED WITH SYNCHROTRON RADIATION

Nobuo Munakata, +4 more
- 01 Sep 1986 - 
TL;DR: The action spectra for mutation induction paralleled those for the inactivation, indicating that vacuum‐UV radiation induced lethal and mutagenic damages in the spore DNA.
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Absorption spectra of deoxyribose, ribosephosphate, ATP and DNA by direct transmission measurements in the vacuum-UV (150-190 nm) and far-UV (190-260 nm) regions using synchrotron radiation as a light source.

Atsushi Ito, +1 more
- 01 Sep 1986 - 
TL;DR: Results indicate that the absorption of the sugar‐phosphate group, rather than adenine, contributed to the increase below 170 nm in the absorption spectra of ATP and DNA.
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Monochromatic X-ray irradiation system (0.08-0.4 nm) for radiation biology studies using synchrotron radiation at the photon factory.

Katsumi Kobayashi, +4 more
- 01 Dec 1987 - 
TL;DR: A monochromatic X-ray irradiation system in the 0.08-0.4 nm wavelength range is described, which uses for the first time, synchrotron radiation at the Photon Factory as an X-rays source (2.5 GeV electron storage ring).
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WAVELENGTH DEPENDENCE OF THE FORMATION OF SINGLE-STRAND BREAKS AND BASE CHANGES IN DNA BY THE ULTRAVIOLET RADIATION ABOVE 150 nm

Kotaro Hidea, +4 more
- 01 Sep 1986 - 
TL;DR: The main conclusions are that the majority of single‐strand breaks were induced by the absorption of photon in the sugar‐phosphate group in the vacuum‐UV region and that the base changes were induced equally well by absorption in the Vacuum‐UV and in the far‐UV regions.
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Enhanced killing of HeLa cells pre-labeled with 5-bromodeoxyuridine by monochromatic synchrotron radiation at 0.9 A: an evidence for Auger enhancement in mammalian cells.

Kunio Shinohara, +12 more
- 01 Sep 1985 - 
TL;DR: Although non-specific sensitization of labeled cells to the radiation was observed irrespective of the wavelengths, the labeled cells were killed at a higher rate by the irradiation at 0.90 A than at 1.00 A, which may be inferred to be due to the induction of Auger effect in bromine atom of the DNA selectively absorbed the photon.