Taro Oya; Takashi Enoki; Alexander Yu. Grosberg; Satoru Masamune; Takaharu Sakiyama; Yukikazu Takeoka; Kazunori Tanaka; Guoqiang Wang; Yasar Yilmaz; Michael S. Feld; Ramachandra Dasari; Toyoichi TanakaScience 1999, 286, 1543
Comb-type hydrogels:
Comb-type grafted hydrogels with rapid de-swelling response to temperature changes
Ryo Yoshida, Katsumi Uchida, Yuzo Kaneko, Kiyotaka Sakai, Akihiko Kikuchi, Yasuhisa Sakurai & Teruo Okano
Nature 1995, 374, 240
and another group’s report:
 Graft copolymers that exhibit temperature-induced phase transitions over a wide range of pH
Guohua Chen & Allan S. Hoffman*
Science 1995, 373, 49
and old ones:
Reversible Decrease of Gel-Solvent Friction
Masayuki Tokita; Toyoichi Tanaka
Science 1991, 253, 1121
together with another paper:
Volume transition in a gel driven by hydrogen bonding
 Franck Ilmain, Toyoichi Tanaka & Etsuo Kokufuta
Nature 1991, 349, 400
and older papers:
Phase transition in polymer gels induced by visible light
Atsushi Suzuki & Toyoichi Tanaka
 Nature 1990, 346, 345
and
 Collapse of Gels in an Electric Field
     Toyoichi Tanaka; Izumi Nishio; Shao-Tang Sun; Shizue Ueno-Nishio
     Science 1982, 218, 467