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Formation of Spherulitic J-Aggregates From the Coassembly of Lithocholic Acid and Cyanine Dye

Formation of Spherulitic J-Aggregates From the Coassembly of Lithocholic Acid and Cyanine Dye

Samuel Rhodes, Wenlang Liang, Ekaterina Shteinberg, Jiyu Fang

J Phys Chem Lett. 2017 Sep 21;8(18):4504-4509.

PMID: 28872876

Abstract:

Supramolecular aggregates of organic dyes through noncovalent interactions have attracted great interest because they exhibit collective optical and excitonic properties. We report the formation of spherulitic J-aggregates from the coassembly of lithocholic acid (LCA) and 3,3'-diethylthiacarbocyanine iodide (DiSC2(3)) in ammonia solution. Each spherulite contains a core, which serves as a nucleus for the growth of radially oriented J-aggregate fibrils. We find that the growth of spherulitic J-aggregates exhibits a sigmoidal kinetic curve with an initial lag time, followed by a period of rapid growth and a finally slow approach to equilibrium.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP905975	3,3′-Diethylthiacarbocyanine iodide		905-97-5	Price

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