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. 2008 May-Jul;18(3-4):619-24.
doi: 10.1007/s10895-008-0341-2. Epub 2008 Feb 23.

Fluorescent microcrystals obtained from coumarin 6 using the reprecipitation method

Suzanne Fery-Forgues  1 , Rami El-Ayoubi, Jean-François Lamère
Affiliations

Fluorescent microcrystals obtained from coumarin 6 using the reprecipitation method

Suzanne Fery-Forgues et al. J Fluoresc. 2008 May-Jul.

Abstract

The reprecipitation method was applied to Coumarin 6. A concentrated solution of the dye in acetone was mixed at room temperature with a large volume of water, and microcrystals rapidly appeared in the medium. Their size and shape were visualized by fluorescence microscopy, as well as by transmission electron microscopy. The absorption and fluorescence properties were studied on the suspensions and compared with those of the dissolved dye. This study is aimed at clarifying the influence of the reprecipitation process upon the fluorescence properties of the dye in the solid state.

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