Clay mineral particles are interesting nanosized building blocks due to their high aspect ratio and the chemical
properties. The main interest in this nanosized building blocks results essentially from the colloidal size and the permanent
structural charge of the particles. Smectites or swelling clay minerals are naturally occurring nanomaterials that can be
fully delaminated to elementary clay mineral platelets in dilute aqueous dispersion. This dilute aqueous smectite
suspensions are well suited to convert into functional nanofilms. The functionalization is performed by ion exchange
reaction with amphiphilic molecules carrying the desired functionality, such as chirality, two photon absorption, energy
transfer, optical nonlinearity and magnetism, which are due to the nature of the amphiphilic cations and to the
organization of both the amphiphilic molecules and the elementary clay mineral platelets. Controlling the structure of
materials at the nanometre scale is of fundamental importance for tailoring such materials properties. Langmuir Blodgett
films are known for a high degree of organization of organic molecules. Fundamental research into the organization of
molecules at clay mineral platelets is necessary to optimize the materials for specific applications. This paper gives an
overview of organo-clay hybrid Langmuir-Blodgett nano films.
Keywords: Langmuir-Blodgett, J-aggregate, Fluorescence resonance Energy Transfer (FRET), Oragano-clay.
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