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Nucleation and growth during a fluorogenic precipitation in a micro-flow :

le 30 septembre 2016

© Vu Long Tran, Jean Frédéric Audibert, Robert Pansu. (2016) V. L. Tran, V. Génot, J.-F. Audibert, Y. Prokazov, E. Turbin, W. Zuschratter, H.-J. Kim, J. Jung, S. Y. Park and R. B. Pansu. Nucleation and growth during a fluorogenic precipitation in a micro-flow mapped by fluorescence lifetime microscopy. New J. Chem. 40 , 4601-4605.

We have observed the precipitation of a fluorescent dye in a microfluidic 3D hydrodynamic mixing set up. In addition to the short fluorescence lifetime of DBDCS molecule and to the long lifetime of their crystal, nuclei with an intermediate lifetime are observed. These are the first observation, enumeration and mapping of the early states of the crystallization during an anti-solvent precipitation.

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