Results 151 to 160 of about 6,837 (257)

Multistressor Interaction of Perfluorooctane Sulfonate (PFOS) and Temperature in Two Estuarine Fish Species, Red Drum (Sciaenops ocellatus) and Sheepshead Minnow (Cyprinodon variegatus)

Environmental Toxicology, EarlyView.
ABSTRACT Perfluorooctane sulfonate (PFOS), a perfluoroalkyl substance (PFAS), is characterized by a long, fluorinated carbon chain which makes it ideal for oil‐ and water‐repellent products but detrimental for the environment, where it persists and accumulates in organisms.
Anna L. Thornton, Katy W. Chung, Peter B. Key, Emily C. Pisarski, Philip Tanabe, Marie E. DeLorenzo   +5 more
wiley   +1 more source

A Cytochrome c-Containing Periplasmic Nitrate Reductase in the Acetogen Sporomusa ovata. [PDF]

Environ Microbiol
Waschinger LM, Poehlein A, Daniel R, Rosenbaum FP, Müller V.   +4 more
europepmc   +1 more source

Beyond Removal Efficiency: Environmental Risk Assessment of Tartrazine Degradation via ZnO and TiO2 Nanoparticles in Mussels

Environmental Toxicology, EarlyView.
ABSTRACT Tartrazine (TZ) is a widely used synthetic azo dye with high aqueous stability, resulting in persistence in wastewater. Photoreactive nanomaterials, principally zinc oxide (ZnO) and titanium dioxide (TiO2) nanoparticles (NPs), are frequently employed for dye removal under light‐exposed conditions; nevertheless, their ecotoxicological ...
İrem Can, Ezgi Can Güzel, Volkan Saritunç, Selin Ertürk Gürkan   +3 more
wiley   +1 more source

Influence of Age and Exposure Pathway on Copper and Cadmium Mixture Toxicity: A Study on Daphnia magna

Environmental Toxicology, EarlyView.
ABSTRACT Metal contamination in aquatic ecosystems poses substantial risks to freshwater organisms, with mixture effects often deviating from predictions based on single‐metal toxicity. Understanding how age‐specific sensitivities and multiple exposure pathways influence mixture effects is critical for accurate risk assessment.
Sanah Majid, Karen Smeets, Mubiana K. Valentine, Ronny Blust   +3 more
wiley   +1 more source

Physiological roles for two periplasmic nitrate reductases in Rhodobacter sphaeroides 2.4.3 (ATCC 17025). [PDF]

J Bacteriol, 2011
Hartsock A, Shapleigh JP.
europepmc   +1 more source

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

Environmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu, Patrick B. Njobeh, Jonathan O. Okonkwo   +2 more
wiley   +1 more source

Methanoperedenaceae archaea: a 20-year research journey. [PDF]

Nat Commun
Liu T, Zhang X, Hu S, Yuan Z, Guo J.
europepmc   +1 more source

Avoiding pitfalls when modelling ligands in macromolecular crystallography

Acta Crystallographica Section D, EarlyView.
Flawed protein–ligand X‐ray structures can misdirect drug discovery based on PDB‐deposited models. This review uses publicly available PDB examples to highlight potential pitfalls, from absent ligands to incorrect chemistry, and presents a practical validation approach to improve model reliability.The determination of protein–ligand complex structures ...
Oliver S. Smart, Andrew Sharff, Claus Flensburg, Clemens Vonrhein, Gérard Bricogne   +4 more
wiley   +1 more source

Enhanced nitrogen removal via simultaneous nitrification and denitrification by a newly isolated strain Enterobacter cloacae GW6 from estuarine sediment. [PDF]

PLoS One
Chen S, Zhang Z, Wang Y, Wang C, Zhang X, Wang X, Wu Y, Wang Y, Guo H.   +8 more
europepmc   +1 more source

Towards routine accurate electron‐density studies of biological macromolecules

Acta Crystallographica Section D, EarlyView.
Here, we describe the determination of the highest resolution structure in the PDB at 0.43 Å resolution. Electron‐density maps reveal extensive deformation electron density that is completely accounted for by performing transferable aspherical atom refinements using the DiSCaMB library in BUSTER.We report here the structure of Pyrococcus abyssi ...
Elham Paknia, Claus Flensburg, Michal Leszek Chodkiewicz, Rasmus H. Fogh, Peter Keller, Clemens Vonrhein, Clemens Schulze-Briese, Paulina Maria Dominiak, Gleb Bourenkov, Gérard Bricogne, Ashwin Chari   +10 more
wiley   +1 more source