Themed collection Environmental Science: Nano Recent HOT Articles

Tiemannite nanoparticles available for microbial mercury methylation are formed during the co-precipitation of natural organic matter, divalent mercury and selenium.

Common plastics, such as polyethylene terephthalate (PET), as pollutants in aquatic environments in the form of micro/nanoparticles are of environmental and public health concern.

The surface properties of graphene-based materials determine their protein-binding capacities via modulating the aggregation morphology of these materials.

CNTs mitigated the inhibition of CAP on protein biosynthesis, while CAP enhanced the upregulation of proteins induced by CNTs. TC can potentiate the CNT-induced downregulation of proteins related to ribosome.

Visualisation of the ionic metal content and the metal nanoparticle number, distribution and size in biomatrices by LA-sp-ICPMS imaging.

The morphology and capacitive desalination mechanism of 3D Na_0.6CoO₂.

O_N1-Doped g-C₃N₄ nanosheets with low oxygen content showed a greatly enhanced photocatalytic performance for the degradation of organic pollutants.

A mathematical model is developed and evaluated for polymer-facilitated nanoparticle transport. Results demonstrate that the model can reproduce experimental observations of nanoparticle migration and attachment in a heterogeneous packed flow cell.

nHAP (mainly composed of Ca and P, but also spiked with Sr, V and Ce tracers) initially adheres to the surface of roots, before penetrating and dissolving in the plant.

Uptake and effects of polystyrene micro- and nanospheres on Drosophila melanogaster.

Albumin restructuring yields an additional driving force for protein corona-modified nanoparticles to adhere to biological interfaces that can be revealed a priori by modeling adsorption kinetics.

Pollutants as electron donors and O₂/H₂O₂ as electron acceptor were effectively utilized, providing a strategy for realizing low energy consumption and high-efficiency AOPs.

Effects of PS-NPs on bioaccumulation and transgenerational toxicity of EHS to zebrafish.

Hybrid ionic liquid gels, efficient adsorbents for cleaning wastewater from pharmaceutically active compounds.

Enhanced removal of metal ions in a hybrid capacitive deionization system has been originally developed via the adsorption–intercalation–conversion mechanisms.

Hydrophilic surface modification enhanced the interaction between fullerene and lysozyme to induce more protein conformational changes and enzyme activity loss.

Surface bound Fe(II) on NZVI secondary minerals would affect the fate and mobility of quinolone antibiotics in the environment.

The poor crystallinity of As(V) minerals such as arseniosiderite and yukonite has made a detailed understanding of their structures elusive. Therefore, these were probed by pair distribution function analysis and transmission electron microscopy.

3D flower-like δ-MnO₂@TpPa-1 composites was constructed though the integration of δ-MnO₂ nano-flowers with a covalent organic framework (TpPa-1) via ultrasonication process. δ-MnO₂@TpPa-1 a promising adsorbent for spent-nuclear-fuel reprocessing.

Secreted corona composition of Ag and TiO₂ NMs, evaluated after 7 days of continuous exposure to daphnids, provides important insights into the biological pathways perturbed by the NMs.

A novel and sustainable Pd–Sn bimetallic catalyst supported by fly ash-derived zeolite Na-X (Zeolite-XF) was developed for highly reactive and N₂-selective reduction of nitrate in water.

TiO₂-NPs reduce the growth of coastal microalgae in environmentally relevant conditions, and alter sediment biostabilisation, primary production and nutrient recycling. These effects vary between environmental contexts (seasons).

The Si-engaged, carbon-activated peroxymonosulfate (PMS) system proceeding via the non-radical oxidation pathway involving singlet oxygen (¹O₂) represents a promising advanced oxidation process.

This study explored the potential of ceria nanoparticles (CeO₂ NPs) to alleviate stress in hydroponic rice caused by low N (LN) and high N (HN) stresses.

Temperature and salinity can significantly modulate physicochemical properties and toxicity of ZnO-NPs. Existing water quality criteria are inadequately protective towards marine organisms, especially in estuaries and under global climate change.

Transformation of the nanomineral ferrihydrite (Fh) into more stable lepidocrocite (Lp) or goethite (Gt) has important impacts on the fate of metals, nutrients, and contaminants in soils/sediments.

Using physiology and metabolome analyses, we showed the promoting effects of single-walled carbon nanohorns and ZnO nanoparticles on plant growth and salt tolerance in Sophora alopecuroides seedlings.

Functionally active membranes made of cellulosic microfibers (CMFs) have emerged as promising sorbents for the removal of nano-sized pollutants from water.

This study demonstrates that synthesized copper sulfide nanoparticles with a rapid Cu dissolution rate can suppress Gibberella fujikuroi infection in rice (Oryza sativa L.).

Leaf vein-inspired membranes with nanonetwork structures were constructed for high-flux water purification under ultralow driving pressures.

Gourd-like hollow mesoporous silica particles with large surface area supporting the Ag/AgBr Schottky junction for a high-efficieny TTC mineralization.

The hematite {001} possessed more adsorption sites, more positive redox potential, and higher conductivity than {100}, resulting that the dissimilatory iron reduction rate of hematite {001} by S. putrefaciens CN-32 was easier than that of {100}.

Dissolved organic carbon concentration from soil management, root exudates, and root-colonizing bacteria is dominant over the effect of pH in determining dissolved Cu concentration from CuO nanoparticles at alkaline pH.

Silver sulfidation in nanosilver-coated membranes slows down silver release and increase biofouling resistance without affecting the membrane's functionality.

Fenton-like degradation of p-hydroxybenzoic acid by ultrafine copper nanoclusters and single sites exhibited high atom utilities and a wide working pH range.

A 3D hierarchical micromotor decorated with a nanozyme/natural enzyme hybrid that integrated movement, Fenton degradation and enzymatic catalysis in sewage water.

The preparation of realistic polyethylene terephthalate nanoplastics and the preliminary toxicological assessment of the as-prepared PET NPs in zebrafish embryos was carried out.

Nanocrystalline NpO₂(s) dissolves preferentially at grain boundaries, producing aqueous and colloidal neptunium. Dissolution mechanisms may impact the environmental fate of NpO₂(s) in legacy radioactive waste management.

The geochemical cycling of iron and carbon can couple in unique ways in the euphotic zone of aquatic systems.

Compared with graphitization modification, oxidation modification could alleviate adverse effects via better performance of photosynthesis and EPS resistance.

Indium-modified Ga₂O₃ hierarchical nanosheet was proved to be an efficient and promising photocatalyst for the removal of perfluorooctanoic acid in aqueous environment.

Rh-doped SrTiO₃ inverse opal with a well-ordered 3D structure is prepared via an efficient approach for the boosted piezo-photocatalytic degradation of organic pollutants such as BPA.

GO first binds with metals, and GO–metal complexes attach to SSLBs via hydrogen bonding through GO rather than cation bridging through metals.

The Zn stable isotope composition of plants demonstrates that ZnO engineered nanomaterials dissolve before their uptake and accumulation by the roots (brightest inclusions in root cortex).

Iron oxide nanoparticles were stabilized in water using the biosurfactant rhamnolipid, and the adsorption of U(VI) to these nanoparticles was measured and modeled as a function of water chemistry.

Cane toad iliac arteries were perfused ex vivo with polyacrylic acid coated nanoparticles. Nanoparticle uptake was observed in both endothelial and vascular smooth muscle cells, eliciting endothelial cell apoptosis and diminished vascular relaxation.

A rapid and inexpensive method to analyze redox properties of magnetite nanoparticles and quantify arsenic adsorption by single particle collision electrochemistry.

Reliable criteria for identifying the intrinsic active sites in carbocatalysts to mediate an electron-transfer mechanism in persulfate activation are presented.

The modification of illite particles could enhance the photocatalytic NO removal activity of g-C₃N₄.

Diet is an important exposure pathway of engineered nanomaterials (ENMs) in fish, but the long duration of in vivo toxicity tests is a barrier to hazard assessment.

Low contents of rGO can form a conductive network, increase active particle utilization, and greatly promote electroadsorption.

Association of plastic particles with plant roots could represent a pathway for human consumption of plastic and plastic-associated organic contaminants.

Glutathione can alleviate the silver nanoparticle-induced phytotoxicity and enhance the nitrogen assimilation in soybean.

Few standardized methods and reference systems have been established for evaluating the behavior of engineered nanomaterials in complex media like natural soils.

The pH in the anterior gut of Daphnia magna is more than 2 pH units lower than the cultural medium.

Durable elimination of tetracycline and its toxicity by a tribo-positive Fe@MoS₂ piezocatalyst via ball-milling activation.

Associating mesocosm experimentations with multivariate analyses to identify the parameters governing the behavior and impact of nanomaterials on aquatic ecosystems.

The risks of metallic nanoparticles (MNPs) in anammox have attracted increasing attention; however, how sulfidation, an important environmental transformation process, affects their toxicity potential is unclear.

Mn₃O₄ nanoenzymes boost endogenous antioxidants in, and enhance resistance of, the cucumber (Cucumis sativus) plant subjected to salinity stress.

Biocides encapsulation appears to be a promising solution to develop a new generation of efficient anti-fouling additives (e.g. SiNC–DCOIT; SiNC–DCOIT–Ag) for maritime coatings with lower environmental hazard than the current state-of-the-art biocides (e.g. DCOIT).

Single-walled carbon nanotubes (SWCNTs) have caused increasing public concerns associated with their potential toxicological effects. This study demonstrated that the physicochemical properties of SWCNTs have impacts on their toxicological effects.

Soluble Fe(III)–As(V) complexes were found at both acidic and neutral conditions, which significantly change the solubility of ferric oxides.

Upon exposure to non-toxic concentration of silver nanoparticles, only the ionic form of silver is found in the nucleus leading to an endocrine disruptor-like effect.

Exposures to Zn in ion or NPs form results in stimulation of the same cellular pathways (conserved toxicodynamics), whilst exposure to NPs enhances the amplitude of the response by influencing the mechanism of uptake (altered toxicokinetics).

The present work elucidates that the photocatalytic activity of nanocage-like MIL-125-NH₂ is enhanced by adsorption of an electron-withdrawing pollutant (p-nitrophenol) but suppressed by adsorption of an electron-donating pollutant (p-methylphenol).

This paper revealed that the changes in the protein conformation and the dissolution of silver nanoparticles depended on the protein structure and could result in different degrees of enzymatic activity modulation.

In this work, the carbon nanotubes (CNTs) encapsulating Zn and Fe bimetallic nanoparticles (FeZn@NC) were synthesized through a one-pot pyrolytic strategy.

Natural organic matter (NOM) impedes the growth of colloidally stable Cu_xS nanoparticles and slows down their morphological development, but also drives their oxidative dissolution.

Pristine engineered nanomaterials (NMs) entering the aquatic environment become ‘aged’ during their lifetime via chemical, physical and/or biological process.

Complete extraction of Cr(VI) from rCOPR which involved ion exchange in ion channels of Cr(VI)–ettringite, formation and growth of nano-CaCO₃.