1 research outputs found
Thermo-Switchable de Novo Ionic Liquid-Based Gelators with Dye-Absorbing and Drug-Encapsulating Characteristics
An ionic liquid-based surfactant
with ester functionality self-aggregates
in an aqueous medium and forms ionogels at 8.80% (w/v) concentration
at physiological pH. The ionogel exhibited a remarkable change in
its appearance with temperature from fibrillar opaque to transparent
because of the dynamic changes within its supramolecular structure.
This gel-to-gel phase transition occurs below the melting point of
the solid ionic liquid. The ionogels were investigated using turbidity,
differential scanning calorimetry, scanning electron microscopy (SEM),
field emission SEM (FE-SEM), inverted microscopy, transmission electron
microscopy imaging, Fourier transform infrared spectroscopy, and rheological
measurements. The fibrillar opaque ionogel and transparent ionogel
were studied for their ability to absorb dyes (methyl orange and crystal
violet) and to encapsulate drugs (diclofenac sodium and imatinib mesylate)