title: Amphiphilic Organic-Inorganic Hybrid Zeotype Aluminosilicate like a Nanoporous Crystallized Langmuir-Blodgett Film.
abstract: A new organic-inorganic hybrid zeotype compound with amphiphilic one-dimensional nanopore and aluminosilicate composition was developed. The framework structure is composed of double aluminosilicate layers and 12-ring nanopores; a hydrophilic layer pillared by Q(2) silicon atom species and a lipophilic layer pillared by phenylene groups are alternately stacked, and 12-ring nanopores perpendicularly penetrate the layers. The framework topology looks similar to that of an AFI-type zeolite but possesses a quasi-multidimensional pore structure consisting of a 12-ring channel and intersecting small pores equivalent to 8-rings. The hybrid material with alternately laminated lipophilic and hydrophilic nanospaces can be assumed as a crystallized Langmuir-Blodgett film. It demonstrates microporous adsorption for both hydrophilic and lipophilic adsorptives, and its outer surface tightly adsorbs lysozyme whose molecular size is much larger than its micropore opening. Our results suggest the possibility of designing porous adsorbent with high amphipathicity.
authors.affiliation: Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551 (Japan). takuji-ikeda@aist.go.jp.
authors.forename: Takuji
authors.initials: T
authors.lastname: Ikeda
authors.affiliation: Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551 (Japan).
authors.forename: Norihito
authors.initials: N
authors.lastname: Hiyoshi
authors.affiliation: Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology, 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551 (Japan).
authors.forename: Shun-ichi
authors.initials: S
authors.lastname: Matsuura
authors.affiliation: Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba 305-8565 (Japan).
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Kodaira
authors.affiliation: Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu 808-0135 (Japan).
authors.forename: Takuma
authors.initials: T
authors.lastname: Nakaoka
authors.affiliation: Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu 808-0135 (Japan).
authors.forename: Ami
authors.initials: A
authors.lastname: Irisa
authors.affiliation: Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu 808-0135 (Japan).
authors.forename: Miki
authors.initials: M
authors.lastname: Kawano
authors.affiliation: Faculty of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu 808-0135 (Japan). katz@kitakyu-u.ac.jp.
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Yamamoto
keywords: Langmuir-Blodgett films; amphiphiles; microporous materials; organic-inorganic hybrid composites; zeolite analogues