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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 生醫工程研究所 > 依資料類型分類 > 期刊論文 >  Aggregation-induced emission enhancement characteristics of naphthalimide derivatives and their applications in cell imaging

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/125916

標題: Aggregation-induced emission enhancement characteristics of naphthalimide derivatives and their applications in cell imaging
作者: Lin, Hsin-Hung;Chan, Yung-Chieh;Chen, Jyun-Wei;Chang, Cheng-Chung
Contributors: 國立中興大學生物醫學研究所
National Chung Hsing University,Graduate Institute of Biomedical Sciences
Miao-zhen Luo
日期: 2011
Issue Date: 2012-10-19 13:44:22 (UTC+8)
Publisher: The Royal Society of Chemistry
摘要: Novel naphthalimide derivatives (NIM) with donor-acceptor architecture were successfully constructed and their unique fluorescent properties were investigated. In particular, the fluorescence intensities of 4-methoxystyrene substituted NIM-1 were solvent independent and its quantum yields varied from 0.4 in toluene to 0.52 in MeOH. However, 4-(N,N-diphenylamino) styrene substituted NIM-2 and 4-nitrostyrene substituted NIM-3 exhibited low luminescence in dilute solutions but were efficiently fluorescent under conditions of molecular aggregation. NIM-2 showed strong solid fluorescence with a longer wavelength emission and larger Stokes shift. In addition, NIM-3 showed unexpected blue-green fluorescence due to the formation of fluorescent organic nanoparticles (FONs) under mixed solution. These two cases were ascribed to the aggregation-induced enhanced emission (AIEE) effects and which can also reasonably explain the bright cellular images observed when cells were incubated with NIM-2 and NIM-3. Furthermore, compound NIM-2 can be used to recognize cancer cells owing to its subcellular behaviour.
Relation: Journal of Materials Chemistry, Volume 21, Issue 9, Page(s) 3170-3177.
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