Enzymatic Synthesis of Ricinoleyl Hydroxamic Acid Based on Commercial Castor Oil, Cytotoxicity Properties and Application as a New Anticancer Agent.

Background: New anticancer agents that rely on natural/healthy, not synthetic/toxic, components are very much needed.

Methods: Ricinoleyl hydroxamic acid (RHA) was synthesized from castor oil and hydroxylamine using Lipozyme TL IM as a catalyst. To optimize the conversion, the effects of the following parameters were investigated: type of organic solvent, period of reaction, amount of enzyme, the molar ratio of reactants and temperature.

Green Synthesis of Zeolite/FeO Nanocomposites: Toxicity & Cell Proliferation Assays and Application as a Smart Iron Nanofertilizer.

Purpose: The aim of this study was to prepare zeolite/iron (III) oxide nanocomposites (zeolite/FeO-NCs) as a smart fertilizer to improve crop yield and soil productivity.

Methods: Zeolite/FeO-NCs were successfully produced by loading of FeO-NPs onto the zeolite surface using a quick green precipitation method. The production of zeolite/FeO nanocomposites was performed under a mild condition using environmentally friendly raw materials as a new green chemistry method.