Publications by authors named "W Stachowiak"

This study is focused on the utilization of naturally occurring salicylic acid and nicotinamide (vitamin B) in the development of novel sustainable Active Pharmaceutical Ingredients (APIs) with significant potential for treating acne vulgaris. The study highlights how the chemical structure of the cation significantly influences surface activity, lipophilicity, and solubility in aqueous media. Furthermore, the new ionic forms of APIs, the synthesis of which was assessed with metrics, exhibited very good antibacterial properties against common pathogens that contribute to the development of acne, resulting in remarkable enhancement of biological activity ranging from 200 to as much as 2000 times when compared to salicylic acid alone.

View Article and Find Full Text PDF

Esterquats constitute a unique group of quaternary ammonium salts (QASs) that contain an ester bond in the structure of the cation. Despite the numerous advantages of this class of compounds, only two mini-reviews discuss the subject of esterquats: the first one (2007) briefly summarizes their types, synthesis, and structural elements required for a beneficial environmental profile and only briefly covers their applications whereas the second one only reviews the stability of selected betaine-type esterquats in aqueous solutions. The rationale for writing this review is to critically reevaluate the relevant literature and provide others with a "state-of-the-art" snapshot of choline-type esterquats and betaine-type esterquats.

View Article and Find Full Text PDF

In the framework of this study, six fungal isolates which demonstrated a high capability for biodegrading iodosulphuron-methyl sodium as well as herbicidal ionic liquids based on this herbicide were isolated from different soil samples. The isolates were identified based on the ITS region, whereas biodegradation residues were determined based on LC-MS/MS. Depending on the isolate, the half-lives values of the biodegraded herbicide or herbicidal ionic liquid ranged significantly from just 1.

View Article and Find Full Text PDF
Article Synopsis
  • The research investigates the environmental impacts of different organic cations combined with the herbicide dicamba, focusing on a strategy called 'herbicidal ionic liquids' (HILs).
  • Toxicity tests were conducted on various microorganisms and crustaceans, revealing that the structure of the cations significantly influences toxicity levels, with natural ions being much less toxic compared to synthetic ones.
  • The study highlights the transformation of betaine-type cations into less harmful substances over time, challenging current understanding of ionic liquids in herbicides and drawing parallels to toxicity concerns in traditional herbicide formulations.
View Article and Find Full Text PDF

Since the discovery of deep eutectic solvents (DESs) in 2003, significant progress has been made in the field, specifically advancing aspects of their preparation and physicochemical characterization. Their low-cost and unique tailored properties are reasons for their growing importance as a sustainable medium for the resource-efficient processing and synthesis of advanced materials. In this paper, the significance of these designer solvents and their beneficial features, in particular with respect to biomimetic materials chemistry, is discussed.

View Article and Find Full Text PDF