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美國布魯克海文儀器公司>技術(shù)文章>測(cè)量應(yīng)用案例-126

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測(cè)量應(yīng)用案例-126

閱讀:161          發(fā)布時(shí)間:2018-4-4
文獻(xiàn)名: Supramolecular polymer micelles as universal tools for constructing high-performance fluorescent nanoparticles

作者 Chih-Chia Chenga. Zhi-Sheng Liaoa. Jyun-Jie Huanga. Duu-Jong Leeb,c,d. Jem-Kun Chene.

a

Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan

b

Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan

c

Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan

d

R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 32043, Taiwan

e

Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan

 

摘要:This study is the first attempt to encapsulate fluorescent rhodamine 6G (R6G) into supramolecular micelles as a means of manipulating the fluorescence color and quantum efficiency of R6G, and provides a quick and simple route towards the fabrication of high-efficiency fluorescent nanoparticles for next-generation lighting devices and biomedical image applications. We demonstrate that these R6G-loaded micelles exhibit a uniform size distribution, tunable R6G loading capacity and a rapid R6G release rate, in combination with excellent thermal sensitivity due to dissociation of the dynamic hydrogen bonds at environmental temperatures above the lower critical solution temperature. Importantly, R6G-loaded micelles act as an effective chromophore to greatly improve the fluorescence-color stability of R6G in aqueous solution and provide a maximum quantum yield of 0.75, which is more than two times higher than that of the equivalent concentration of free R6G; these features are highly desirable yet extremely rare in conventional polymer carriers and low-molecular-weight surfactant systems.

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