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The Use of Second-Harmonic Generation to Study Diffusion Through Films Under a Liquid Phase

The Use of Second-Harmonic Generation to Study Diffusion Through Films Under a Liquid Phase

Monique A van der Veen, Marjan De Roeck, Ivo F J Vankelecom, Dirk E De Vos, Thierry Verbiest

Chemphyschem. 2010 Mar 15;11(4):870-4.

PMID: 20099296

Abstract:

Knowledge of the diffusion of chemicals through buried films is important for a wide variety of systems--from sensing to drug delivery. Herein, we show that second-harmonic generation (SHG) can be used to follow the diffusion through a thin film buried under a liquid in situ. More specifically, the diffusion of 4-(4-diethylaminostyryl)-1-methylpyridinium iodide through zeolite precursor films of different thickness is followed. The diffusion coefficients are calculated according to Fick's law.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP105802468	4-(4-Diethylaminostyryl)-1-methylpyridinium iodide		105802-46-8	Price

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