Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Chisa Niwa"'
Autor:
Yoshihisa Ohko, Yoshinobu Kubota, Tetsuto Nakashima, Akira Fujishima, Tetsu Tatsuma, Ken-Ichiro Iuchi, Chisa Niwa, Taisen Iguchi
Publikováno v:
Environmental Science & Technology. 36:4175-4181
The degradation of 17 beta-estradiol (E2) in water by TiO2 photocatalysis was investigated; concurrently the estrogenic activity of the treated water was evaluated during the photocatalytic reactions by an estrogen screening assay. As a result, 10(-6
Autor:
Tetsu Tatsuma, Toshio Mori, Yoshinobu Kubota, Chisa Niwa, Yoshihisa Ohko, Akira Fujishima, Tamika Ohnuma
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 141:225-230
UV light irradiation is known to induce DNA damage, e.g. pyrimidine dimers, which is expected to introduce genetic damage in tissues and cells. Here, we have studied the effects of TiO2 particles on UV-induced pyrimidine dimer formation. Pyrimidine p
Autor:
Yoshinobu Kubota, Yoshihisa Ohko, Kenji Naoi, Akira Fujishima, Tsuyoshi Fujii, Tetsu Tatsuma, Chisa Niwa
Publikováno v:
Nature Materials. 2:29-31
Photochromic materials, which change their colours reversibly in response to light, can be applied to smart windows, displays and memories1,2,3. Conventional photochromic materials respond in a monochromatic way, so that multicolour photochromism has
Autor:
Yoshinobu Kubota, Yoshihisa Ohko, Akira Fujishima, Tsuyoshi Yamamura, Chisa Niwa, Isao Ando, Tetsuto Nakashima, Tetsu Tatsuma
Publikováno v:
Environmental sciencetechnology. 35(11)
The photocatalytic degradation of bisphenol A (BPA), a representative endocrine disruptor, was carried out in TiO2 aqueous suspension. The main purposes were to confirm the total mineralization of BPA and to evaluate the estrogenic activity in the tr
Autor:
Yoshihisa Ohko, Yuichi Satoh, Koichi Kobayakawa, Chisa Niwa, Yosuke Utsumi, Yoshinobu Kubota, Tetsu Tatsuma, Akira Fujishima
Publikováno v:
Journal of biomedical materials research. 58(1)
TiO2 photocatalysts were successfully coated on silicone catheters or medical tubes by pretreatment of the silicone surface with a sulfuric acid solution (5 M) for 3 h. The TiO2 film adhered to the silicone substrate strongly against tensile and bend