Brehm, Julian’s team published research in Journal of Hazardous Materials in 2022-09-05 | CAS: 1885-29-6

Journal of Hazardous Materials published new progress about Amphimedon queenslandica. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, COA of Formula: C7H6N2.

Brehm, Julian published the artcileIn-depth characterization revealed polymer type and chemical content specific effects of microplastic on Dreissena bugensis, COA of Formula: C7H6N2, the main research area is proteomics microplastics chem composition Dreissena; Filter feeders; In-depth characterization; PET drinking bottles; Proteomics; Real-time valvometry.

In aquatic ecosystems, filter feeders like mussels are particularly vulnerable to microplastics (MP). However, little is known about how the polymer type and the associated properties (like additives or remaining monomers) of MP impact organisms, as the predominant type of MP used for effect studies on the organismic level are micron grade polystyrene spheres, without considering their chem. composition Therefore, we exposed the freshwater mussel Dreissena bugensis (D. bugensis) to in-depth characterized fragments in the same concentration and size range (20-120μm): recycled polyethylene terephthalate from drinking bottles, polyamide, polystyrene, polylactic acid, and mussel shell fragments as natural particle control. Real-time valvometry, used to study behavioral responses via the movement of the mussels valves, showed that mussels cannot distinguish between natural and MP particles, and therefore do not cease their filtration, as when exposed to dissolved pollutants. This unintentional ingestion led to polymer type-dependent adverse effects (activity of antioxidant enzymes and proteomic alterations), related to chems. and residual monomers found in MP. Overall, recycled PET elicited the strongest neg. effects, likely caused by anthranilamide, anthranilonitrile and butylated hydroxytoluene, contained in the fragments, which are toxic to aquatic organisms. As PET is among the most abundant MP in the environment, sublethal effects may gradually manifest at the population level, leading to irreversible ecosystem changes.

Journal of Hazardous Materials published new progress about Amphimedon queenslandica. 1885-29-6 belongs to class nitriles-buliding-blocks, name is 2-Aminobenzonitrile(Flakes or Chunks), and the molecular formula is C7H6N2, COA of Formula: C7H6N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts