The use of compound in amorphous forms is a promising approach to improve solubility of poorly water-soluble drugs. However, during storage, amorphous state can spontaneously transform to the lower energy crystalline form and this is a limiting factor for a large commercial use of drugs. In this paper, calcined hydrotalcite was employed to support amorphous celecoxib and several preparations at...

Samples of layered double hydroxides were prepared by a sol-gel procedure. Quinolinate Al(C9H6NO)3 units were added during the synthesis, leading to composite quinolinate hydrotalcite-like compounds. The amount of quinolinate was varied, showing that the number of organic building blocks determines the physicochemical properties of materials, which differ significantly from those commonly repor...

The aim of this study is the improvement of the photostability of anionic dye, methyl orange(MO), by intercalation into the hydrotalcite layer (Mg-F-MO LDH). It was found that the thermostability of MO was markedly improved by intercalation into the hydrotalcite host, whilst the photostability was enhanced slightly. The effect of the stability enhancement is larger when the amount of introduced...

Layered double hydroxides (LDHs) exhibit characteristic anion-exchange chemistry making them ideal carriers of negatively charged molecules like deoxyribonucleic acid (DNA). In this study, hydrotalcite (Mg-Al) and hydrotalcite-like compounds (Mg-Fe, Zn-Al, and Zn-Fe), also known as LDHs, were evaluated for their potential application as a carrier of DNA. LDHs were prepared by coprecipitation at...

An efficient and facile synthesis of fatty acid methyl esters (FAMEs) using sunflower oil and methanol has been carried out in the presence of a solid base Mg-Al-CO3 hydrotalcite heterogeneous catalyst. This protocol promotes the environment friendly conditions as the hydrotalcites are non toxic, recyclable, takes less reaction time and is easy to work up. The hydrotalcite showed high activity ...

Jian-Song WU1,∗, Ying-Kai XIAO, Yu-Ping LIU, Wan-Bang XU, Mei-Fang LIANG, Jian CHENG, Jian-Ping WAN, Ling-Zhu CHEN School of Chemistry Science and Technology, Zhanjiang Normal College, 524048, Zhanjiang-CHINA e-mail: [email protected] Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, 810008, Xining-CHINA Guangdong Institute fo...