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  • Title: Tuning mechanical properties of liquid crystalline nanoparticles.
    Author: Zhou JC, Tsoi S, Spillmann CM, Naciri J, Ratna B.
    Journal: J Colloid Interface Sci; 2012 Feb 15; 368(1):152-7. PubMed ID: 22183259.
    Abstract:
    We report the synthesis of colloidal nanoparticles with an internal structure forming a gel-like matrix. These nanoparticles are composed of low molecular weight liquid crystal (LC) 4-pentyl-4-cyanobiphenyl (5CB) encapsulated in an LC-based polymer network. Using nanoscopic mechanical analysis, we demonstrate the ability to independently tune the shape anisotropy and stiffness by varying, respectively, the 5CB concentration and the extent of the polymer cross-linking. Based on these data, a model is introduced to account for the effect of the polymer network on the mechanical properties, thus providing novel insight into the nanomechanics of these soft particles.
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