A case study on the partitioning of pharmaceutical compound naproxen in edible oil-water system in the presence of ionic and non-ionic surfactants

Toxicity and anti-tumour activity of organotin (IV) compounds

Organotins are widely described as anti-tumor, anti-inflammatory, anti-fungal, and antimicrobial agents. In addition to their use in biomedical fields, organotins are also used in agricultural and industrial applications. These materials are more toxic than inorganic cans, which are poorly absorbed and are excreted on the surface of the can, and cause toxicity to a variety of organisms and damage the environment.This review focuses on organotin’s toxicity and uses in biomedical fields.

Selective Crystallization of d-Mannitol Polymorphs Using Surfactant Self-Assembly

Selective crystallization of polymorphs is highly sought after in industrial practice. Yet, state-of-the-art techniques either use laboriously engineered solid surfaces or strenuously prepared heteronucleants. We propose an approach where surfactants in solution self-assemble effortlessly into mesoscopic structures dictating the polymorphic outcome of the target solute. Sodium dodecyl sulfate (SDS) surfactant is used as a tailored additive to crystallize different polymorphic forms of a model active pharmaceutical ingredient, d-mannitol. Different mesoscopic phases of SDS template particular polymorphs: packed monolayers, micelles, and crystals favored the β, α, and δ forms of d-mannitol, respectively. A synergistic effect of topological templating and molecular interactions is proposed as the rationale behind the observed selective crystallization of polymorphs. This crystal engineering technique suggests that surfactant self-assemblies can be used as tailored templates for polymorphic control.