Preparation of self-assembled fluorinated molecular aggregates, fluorescein nanocomposites: an extremely enhanced light absorption in nanocomposites |
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| Authors: | Kazuo Sasazawa Yuko Yamada Akiko Fujisawa Toshikazu Saitoh Katsuya Ueno Kazuya Oharu Hideo Sawada |
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| Institution: | (1) Central R & D Laboratories, Taiyo Yuden Co., Ltd., 8-1 Sakae-cho, Takasaki, Gunma 370-8522, Japan;(2) Department of Materials Science and Technology, Faculty of Science and Technology, Hirosaki University Bunkyo-cho, Hirosaki 036-8561, Japan;(3) Department of Chemistry, Faculty of Advanced Engineering, Nara National College of Technology, Yamatokoriyama, Nara 639-1080, Japan;(4) Waseda Junior and Senior High School, Shinjuku-ku, Tokyo 162-8654, Japan;(5) Asahi Glass Co., Ltd., Yurakucho, Chiyoda-ku, Tokyo 100-8405, Japan |
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| Abstract: | Self-assembled fluorinated molecular aggregates formed by fluoroalkyl end-capped N-(1,1-dimethyl-3-oxobutyl)acrylamide oligomers, N,N-dimethylacrylamide oligomers, and acrylic acid oligomers in methanol could selectively recognize fluoresceins as guest molecules to form a new class of fluorinated aggregates-fluorescein nanocomposites. These fluorinated fluorescein nanocomposites that are obtained exhibit an extraordinarily enhanced light absorption ( max ca. 440 nm) compared to that (maxs 452, 480 nm) of the parent fluorescein in the absence of fluorinated aggregates. |
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