"A. Nakajima,M. Sakai,K. Okudaira,M. Nishimura,Y. morii,D. Kobayashi,T. Isobe,S. Matsushita","Wettability conversion and friction force variation of polycrystalline TiO2 surface under UV illumination","IUMRS-ICAM2013 "12th IUMRS International Conference on Advanced Materials","IUMRS-ICAM2013",,,,,2013,Sept.