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Removal of phosphate from eutrophic lakes through adsorption by in situ formation of magnesium hydroxide from diatomite.
The potential use of the MOD for restoration of eutrophic lakes by removal of excess PO4 is demonstrated and electrostatic attraction, surface complexation and chemical conversion in situ were the major forces in adsorption of PO4.
Predicting toxic potencies of metal oxide nanoparticles by means of nano-QSARs
A predictive nano-QSAR model is proposed for predicting the cytotoxicity of metal oxide nanoparticles, which indicated that the MeONPs as well as their released metal ions could collectively induce DNA damage and cell apoptosis.
Predicting water quality criteria for protecting aquatic life from physicochemical properties of metals or metalloids.
The novel QICAR-SSD model reported here is a rapid, cost-effective, and reasonably accurate method, which can provide a beneficial supplement to existing methodologies for developing preliminarily screen level toxicities or criteria for metals, for which little or no relevant information on the toxicity to particular classes of aquatic organisms exists.
Fluorescence quenching of fulvic acids by fullerene in water.
The results show that the intrinsic fluorescence of fulvic acids was static quenched by adding nC(60), which will be helpful in understanding the environmental behavior of fullerene in natural aquatic ecosystems.
Anti-androgen activity of polybrominated diphenyl ethers determined by comparative molecular similarity indices and molecular docking.
Mapping the 3D-QSAR models to the active site of the AR provides new insight into the AR-PBDEs interaction and can be used to predict anti-androgen activities of other PBDE congeners.
Predicting criteria continuous concentrations of 34 metals or metalloids by use of quantitative ion character-activity relationships-species sensitivity distributions (QICAR-SSD) model.
The QICAR-SSD model was superior to the FACR method for prediction of data-poor metals and would have significance for predicting toxic potencies and criteria thresholds of more metals or metalloids.
Predicting criteria continuous concentrations of metals or metalloids for protecting marine life by use of quantitative ion characteristic-activity relationships-species sensitivity distributions
A quantitative ion characteristic-activity relationships-species sensitivity distributions (QICAR-SSD) model, based on chronic toxicities for eight marine organisms, was established to predict the criteria continuous concentrations (CCCs) of 21 metals and showed that the chronic Toxicities of various metals had good relationships with their physicochemical properties.
Selenium (Se) plays a key role in the biological effects of some viruses: Implications for COVID-19
The metabolic mechanisms by which Se is involved in anti-inflammatory, antioxidant, and immune effects, and the effect of Se levels on SARS-CoV-2 are described, which could contribute to the prevention and management of COVID-19.
Influence of natural organic matter on the bioavailability and preservation of organic phosphorus in lake sediments
Abstract Information about the bioavailability and sequestration of organic phosphorus (P o ) in sediments is fundamental to understanding biogeochemical cycling of phosphorus (P) in eutrophic lakes.
Characterization of organic matter of plants from lakes by thermal analysis in a N2 atmosphere
Methods of STDN reported here were rapid and accurate ways to quantitatively characterize OM, which may provide useful information for understanding anaerobic behaviors of natural organic matters.