In this investigation, a new nanocomposite as nanocarrier based on functionalized graphene oxide was synthesized by reaction of tetraethylenepentamine and chlorosulfonic acid with functional groups the surface GO. The characterized FT-IR, XRD TGA, FE-SEM, EDAX, TEM, AFM analysis. To explore potential nanocomposites in drug delivery, loading releases quercetin an anticancer were investigated. re...

Sulfonic acid functionalized SBA-15 (SBA-Pr-SO3H) with pore size 6 nm as an efficient heterogeneous nanoporous solid acid catalyst exhibited good catalytic activity in the Biginelli-like reaction in the synthesis of spiroheterobicyclic rings with good yield and good recyclability. Spiro-pyrimidinethiones/spiro-pyrimidinones-barbituric acid derivatives were synthesized in a simple and efficient ...

Recently, H2O2 is drawing growing interest in green chemistry 15 because it acts as direct and environmental benign oxidant in organic synthesis [2] and because its high cost limits the use for the production of bulk organic chemicals. The synthesis of hydrogen peroxide by direct reaction between H2 and O2 is a very attractive alternative to traditional anthraquinone 20 process. Direct synthesi...

Abstract In this work, two catalysts based on polyethylene glycol (PEG) containing sulfonic acid group and the −COOH of citric (CA) were synthesized. Characterization −SO 3 H functionalized PEG has been carried out using FT–IR. The acidity PEG–SO PEG–CA explored to investigate their catalytic efficiency towards eco-friendly production methyl salicylate via esterification salicylic methanol as a...

In this study, we report a new multifunctional nanoparticle with antioxidative and antibacterial activities in vitro. ZnO@GA nanoparticles were fabricated by coordinated covalent bonding of the antioxidant gallic acid (GA) on the surface of ZnO nanoparticles. This addition imparts both antioxidant activity and high affinity for the bacterial cell membrane. Antioxidative activities at various co...