Adsorption and entrapment of salicylamide molecules into the mesoporous structure of folded sheets mesoporous material (FSM-16).
作者： Yuichi Tozuka , Toshio Oguchi , Keiji Yamamoto
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摘要: Purpose. The aim of this study was to estimate the molecular state salicylamide on surface mesoporous silicas and investigate dissolution behavior from solid dispersion. Methods. Folded sheets material (FSM-16) were used as a porous material. estimated by powder X-ray diffractometry, infrared spectroscopy, fluorescence spectroscopy. Results. can be changed simple blending with FSM-16. When physical mixture 25% 75% FSM-16 heated at 120°C for 3 h, amorphization observed diffraction pattern. emission peak 433.5 nm shifted longer wavelength 447.5 after heating. Changes in decay curve suggested that molecules dispersed into hexagonal channels during heating process. Enhanced initial stage sealed sample comparison crystals. Conclusions. Heat treatment gave dispersion which an amorphous adsorption onto channels. Amorphization contributed improvement dissolution.
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Keiji Yamamoto, Toshio Oguchi, Yuichi Tozuka, Etsuo Yonemochi, Siriporn Okonogi, Improved Dissolution of Naproxen from Solid Dispersions with Porous Additives 薬剤学. ,vol. 57, pp. 168- 173 ,(1997)
Atsushi Fukuoka, Naonori Higashimoto, Yuzuru Sakamoto, Shinji Inagaki, Yoshiaki Fukushima, Masaru Ichikawa, Preparation and catalysis of Pt and Rh nanowires and particles in FSM-16 Microporous and Mesoporous Materials. ,vol. 48, pp. 171- 179 ,(2001) , 10.1016/S1387-1811(01)00341-9
Akihiko Matsumoto, Tatsuo Sasaki, Nobuyuki Nishimiya, Kazuo Tsutsumi, Thermal stability and hydrophobicity of mesoporous silica FSM-16 Colloids and Surfaces A: Physicochemical and Engineering Aspects. ,vol. 203, pp. 185- 193 ,(2002) , 10.1016/S0927-7757(01)01105-0
Daisuke Shouro, Yukinori Moriya, Tsuyoshi Nakajima, Shozi Mishima, Mesoporous silica FSM-16 catalysts modified with various oxides for the vapor-phase Beckmann rearrangement of cyclohexanone oxime Applied Catalysis A-general. ,vol. 198, pp. 275- 282 ,(2000) , 10.1016/S0926-860X(99)00519-0
J. Miyawaki, K. Kaneko, Pore width dependence of the temperature change of the confined methane density in slit-shaped micropores Chemical Physics Letters. ,vol. 337, pp. 243- 247 ,(2001) , 10.1016/S0009-2614(01)00225-1
J. Palomar, J.L.G. De Paz, J. Catalán, Vibrational study of intramolecular hydrogen bonding in o-hydroxybenzoyl compounds Chemical Physics. ,vol. 246, pp. 167- 208 ,(1999) , 10.1016/S0301-0104(99)00159-7
T Ohkubo, T Iiyama, K Kaneko, Organized structures of methanol in carbon nanospaces at 303 K studies with in situ X-ray diffraction Chemical Physics Letters. ,vol. 312, pp. 191- 195 ,(1999) , 10.1016/S0009-2614(99)01001-5
T. Suzuki, R. Kobori, K. Kaneko, Grand canonical Monte Carlo simulation-assisted pore-width determination of molecular sieve carbons by use of ambient temperature N2 adsorption Carbon. ,vol. 38, pp. 630- 633 ,(2000) , 10.1016/S0008-6223(00)00004-X
S Okonogi, T Oguchi, E Yonemochi, S Puttipipatkhachorn, K Yamamoto, Improved dissolution of ofloxacin via solid dispersion International Journal of Pharmaceutics. ,vol. 156, pp. 175- 180 ,(1997) , 10.1016/S0378-5173(97)00196-8
Y. Sakamoto, S. Inagaki, T. Ohsuna, N. Ohnishi, Y. Fukushima, Y. Nozue, O. Terasaki, Structure analysis of mesoporous material ‘FSM-16’ Studies by electron microscopy and X-ray diffraction Microporous and Mesoporous Materials. ,vol. 21, pp. 589- 596 ,(1998) , 10.1016/S1387-1811(98)00053-5