Design, synthesis and bio-evaluation of indolin-2-ones as potential antidiabetic agents.

Diabetes mellitus is a serious global health concern, and this is expected to impact more than 300 million people by 2025. The current study focuses on identifying substituted indolin-2-one-based inhibitors for two indispensable drug targets, α-amylase and α-glucosidase. The structures of synthetic compounds were confirmed by spectroscopic techniques and evaluated for enzyme inhibition activities.

Thermodynamics, kinetics and isothermal studies of chromium (VI) biosorption onto stem bark extract coated shale and the regeneration potentials.

A low-cost adsorbent ( stem bark extract coated shale (DSMS)) comprising pristine shale (PSH) coated with stem bark extract was prepared and utilized for the adsorption of Cr(VI). The DSMS and PSH were characterized by the SEM, XRD, FTIR, EDX, TGA, and BET. The batch adsorption experiment results showed that DSMS exhibited an excellent ability to adsorb chromium with a maximum removal occurring at pH 2, dosage of 0.