Poly(N-isopropylacrylamide)-Based Thermoresponsive Behavior of Fluorescent Organic Nanocrystals
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概要
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In this article, we describe the poly(N-isopropylacrylamide)-based thermoresponsive behaviors of fluorescent organic nanocrystals. Aqueous dispersions of thermoresponsive fluorescent nanocrystals were prepared by the reprecipitation method. Fluorescent dyes used for these nanocrystals were perylene, quinacridone, and zinc phthalocyanine. The perylene nanocrystals in the aqueous system using poly(N-isopropylacrylamide) exhibited a significantly increased fluorescence intensity assigned to the emission of the perylene monomer above the cloud point (${\sim}35$ °C). Significantly increased fluorescence intensities of quinacridone nanocrystals and zinc phthalocyanine nanocrystals were also observed above the cloud point (${\sim}35$ °C). These unique fluorescence behaviors were only observed in the aqueous system using poly(N-isopropylacrylamide).
- 2011-01-25
著者
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Baba Koichi
Department Of Pharmacology The Research Institute Of Applied Sciences For Traditional Chinese Medici
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Nishida Kohji
Department Of Communications And Systems. The University Of Electro-communications
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Nakanishi Hachiro
Institute For Chemical Reaction Science Tohoku University
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Kasai Hitoshi
Institute For Multidisciplinary Research For Advanced Materials Tohoku University
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Nishida Kohji
Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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Baba Koichi
Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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