Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Hirato, Misaki*; Yokoya, Akinari*; Baba, Yuji*; Mori, Seiji*; Fujii, Kentaro*; Wada, Shinichi*; Izumi, Yudai*; Haga, Yoshinori
Physical Chemistry Chemical Physics, 25(21), p.14836 - 14847, 2023/05
Times Cited Count：2 Percentile：34.32(Chemistry, Physical)Izumi, Yudai; Yamamoto, Satoshi*; Fujii, Kentaro; Yokoya, Akinari
Hoshasen Seibutsu Kenkyu, 51(1), p.91 - 106, 2016/03
no abstracts in English
Izumi, Yudai; Yamamoto, Satoshi*; Fujii, Kentaro; Yokoya, Akinari
Radiation Research, 184(5), p.554 - 558, 2015/11
Times Cited Count：7 Percentile：31.41(Biology)
-edge soft X-ray natural circular dichroism of histidine thin filmIzumi, Yudai; Tanaka, Masahito*; Tanigawa, Yoshiaki*; Tanabe, Maiko*; Momoki, Yohei*; Iwai, Miki*; Takenaka, Shun*; Ishiyama, Kimihiro*; Kuroki, Misa*; Muro, Takayuki*; et al.
Journal of Physics; Conference Series, 502(1), p.012038_1 - 012038_4, 2014/04
Times Cited Count：2 Percentile：70.74(Materials Science, Multidisciplinary)-edge circular dichroism spectra of amino acid films by improved measurement techniqueIzumi, Yudai*; Tanabe, Maiko*; Imazu, Akiko*; Mimoto, Aki*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*; Nakagawa, Kazumichi*
Journal of Chemical Physics, 138(7), p.074305_1 - 074305_10, 2013/02
Times Cited Count：9 Percentile：30.68(Chemistry, Physical)no abstracts in English
Nakagawa, Kazumichi*; Matsui, Takahiro*; Izumi, Yudai*; Agui, Akane; Tanaka, Masahito*; Muro, Takayuki*
Radiation Physics and Chemistry, 78(12), p.1198 - 1201, 2009/12
Times Cited Count：4 Percentile：29.60(Chemistry, Physical)Chemical-evolution in glycilglycine (Gly2) films irradiated by 146 nm light was studied. It was found that quantum efficiency of chemical evolution from Gly2 to glycilglycilglycine (Gly3) is smaller than that to glycilglycilglycilglycine (Gly4) due to the multiple step of reaction. From natural circular dichroism spectra measurements for serine and alanine films, we found the splitting of 1s
transitions in the energy region of oxygen 1s.
Izumi, Yudai*; Imazu, Akiko*; Mimoto, Aki*; Tanaka, Masafumi*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*
Journal of Physics; Conference Series, 190, p.012209_1 - 012209_4, 2009/11
Times Cited Count：8 Percentile：86.71(Physics, Condensed Matter)Soft X-ray natural circular dichroism spectra of serine and alaninethin films, were measured in absolute value with the focus at the oxygen 1s to transition of COO
. The soft X-ray natural circular dichroism spectra intensity of L-Ala was about ten times as large as that of L-Ser. Those differences would reflect the chiral environment of the core hole oxygen atoms of COO.
Izumi, Yudai*; Kamohara, Masumi*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*; Matsushita, Tomohiro*
no journal, ,
no abstracts in English
Izumi, Yudai*; Kamohara, Masumi*; Tanaka, Masafumi*; Imazu, Akiko*; Mimoto, Aki*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*; Matsushita, Tomohiro*
no journal, ,
no abstracts in English
Izumi, Yudai*; Tanaka, Masafumi*; Imazu, Akiko*; Mimoto, Aki*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*
no journal, ,
no abstracts in English
Izumi, Yudai*; Tanabe, Maiko*; Imazu, Akiko*; Mimoto, Aki*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*
no journal, ,
We measured soft X-ray natural circular dichroism (SXNCD) of aspartic acid (Asp) and tyrosine (Tyr) at oxygen K-edge region, in an attempt to obtain chiral structure at the vicinity of oxygen atoms. SXNCD measurement was carried out at the BL25SU beamline of the SPring-8, Japan. We focused on oxygen COO 1s transitions around 533 eV. Since we used sublimation films which are randomly oriented samples, we could reject E1E2 mechanism and pick up only E1M1 mechanism.
Izumi, Yudai*; Tanabe, Maiko*; Momoki, Yohei*; Nakagawa, Kazumichi*; Agui, Akane; Muro, Takayuki*
no journal, ,
no abstracts in English
Izumi, Yudai; Tanaka, Masahito*; Tanigawa, Yoshiaki*; Momoki, Yohei*; Iwai, Miki*; Takenaka, Shun*; Ishiyama, Kimihiro*; Kuroki, Misa*; Muro, Takayuki*; Nakagawa, Kazumichi*
no journal, ,
It is unclear whether natural circular dichroism (NCD) originating from core-absorption of atoms located at various sites, as well as next to the asymmetric carbon, in the molecules can be observed selectively. In this study, we measured NCD spectra of an amino acid, histidine (His) which has three nitrogen atoms, thin film in the nitrogen K-edge energy region and confirmed whether we can pick up the NCD signals originating from each nitrogen atom throughout the molecules. NCD peaks assigned to the 1s of the nitrogen atoms in imidazole ring and the 1s 
transition of the nitrogen atoms in imidazole ring and amino group. Imidazole ring and amino group are positioned at the side chain distant from and next to the asymmetric carbon, respectively. This result suggests that NCD spectroscopy in the soft X-ray region can selectively pick up the information on local structure around specific atoms, regardless of the position of atoms in molecules.
Izumi, Yudai
no journal, ,
Izumi, Yudai*; Kitada, Tomo*; Kamohara, Masumi*; Kaneko, Fusae*; Matsui, Takahiro*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*; Matsushita, Tomohiro*
no journal, ,
no abstracts in English
Izumi, Yudai*; Kamohara, Masumi*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*; Matsushita, Tomohiro*
no journal, ,
no abstracts in English
Nakagawa, Kazumichi*; Tanaka, Masahito*; Izumi, Yudai*; Agui, Akane; Yokoya, Akinari; Fujii, Kentaro; Muro, Takayuki*; Matsushita, Tomohiro*
no journal, ,
no abstracts in English
Izumi, Yudai*; Imazu, Akiko*; Mimoto, Aki*; Tanabe, Maiko*; Nakagawa, Kazumichi*; Tanaka, Masahito*; Agui, Akane; Muro, Takayuki*
no journal, ,
no abstracts in English
Izumi, Yudai*; Momoki, Yohei*; Tanigawa, Yoshiaki*; Tanaka, Masahito*; Agui, Akane; Nakagawa, Kazumichi*
no journal, ,
no abstracts in English
