1. Benzoate liquid crystals with direct isotropic–smectic transition and antipathogenic activity.
- Author
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Ailincai, Daniela, Marin, Luminita, Shova, Sergiu, and Tuchilus, Cristina
- Subjects
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BENZOATES , *CHEMICAL synthesis , *SMECTIC liquid crystals , *ISOTROPIC properties , *SUPRAMOLECULAR chemistry , *X-ray diffraction , *FOURIER transform infrared spectroscopy - Abstract
A smectogen liquid crystal based on benzoate units has been synthesized and structurally characterized by FTIR and 1 H NMR spectroscopy. Besides, its structure and supramolecular arrangement in the crystalline state was demonstrated by single crystal X-ray diffraction measurements. The thermotropic behaviour, monitored by differential scanning calorimetry and polarized light microscopy, consists in the formation of an enantiotropic smectic mesophase with a direct first order transition from the isotropic to smectic mesophase, and with its thermal stability range superposed on human body temperature. The smectogen liquid crystal has moderate wettability – suitable for biocompatible materials and presents good antipathogenic activity against gram positive and gram negative bacteria and fungus. All these properties recommend the understudied liquid crystal to be used in biochemical and biological applications. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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