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Oyama, Nobuyuki,Takahara, Noriko,Hasegawa, Yoko,Tanase, Kazuya,Miwa, Yoshiji,Akino, Hironobu,Okazawa, Hidehiko,Kudo, Takashi,Fujibayashi, Yasuhisa,Yokoyama, Osamu The Korea Society of Nuclear Medicine 2011 핵의학 분자영상 Vol.45 No.3
Although sunitinib shows a high response rate in patients with untreated metastatic renal cell carcinoma (mRCC), quite a few patients show no therapeutic effect. Therefore, it is crucial to distinguish the patients who respond to sunitinib from those who do not as early as possible after the administration of the therapy. We herein report a case of mRCC in which $^{11}C$-acetate (AC) positron emission tomography (PET) showed an early therapeutic effect of sunitinib treatment 4 weeks after its administration.
High efficiency ester condensation using hydrophobic zeolite membranes
Tomoya Inoue,Yuta Nemoto,Takako Nagase,Yasuhisa Hasegawa,Yoshimichi Kiyozumi,Koichi Sato,Masateru Nishioka,Satoshi Hamakawa,Toshikazu Nishide,Fujio Mizukami 한국화학공학회 2008 Korean Journal of Chemical Engineering Vol.25 No.3
We successfully developed zeolite membranes with hydrophilic character, by choosing appropriate zeolites in terms of hydrophilicity and high acid tolerance. We evaluated thus developed membranes by their pervaporation (PV) performance, dehydration from acidic organic solvent. The zeolite membranes we developed, based on merlinoite (MER), chabazite (CHA) or phillipsite (PHI), are shown to exhibit stable dehydration performance, respectively. We successfully applied the membranes to the selective removal of water in an ester condensation reaction starting from a stoichiometric mixture of a carboxylic acid and an alcohol. The availability of pervaporation-assisted ester condensation reaction was validated by various kinds of combinations of carboxylic acid and alcohols, which implies the general availability of pervaporation-assisted process intensification by zeolite membranes.