Themed collection Nanocircular Economy Papers 2014-2022

Mass balance is currently as useful as number balance in nanoparticle risk assessment, even though it ignores particle properties.

Quantum dots (QDs) have unique properties, which make them valuable in some commercial technologies. This review discusses the major types and applications of QDs, their potential environmental exposures, fates, and adverse effects on organisms.

Materials with different dimensions can exhibit markedly different responses to their environment, even for the same material composition.

The potential extensive application of graphene analogues (GAs), such as graphene, graphene oxide and reduced graphene oxide, in various fields results in the possibility of their release into the natural environment with negative impacts on humans and the ecosystem.

Superparamagnetic iron oxide nanoparticles are used as remediation agents against nanoplastic pollutants. Magnetic particle spectroscopy is utilized as an advanced characterization method and limits of the approach are highlighted.

We illustrate the facile one-step biosynthesis of a bilayer structured hydrogel composite of reduced-graphene oxide (rGO) and bacterial nanocellulose (BNC) for multiple filtration and photothermal water treatment applications.

Nano- and microplastics are polluting the environment and their detection remains elusive. A fluorogenic hyaluronan shows high affinity toward their surfaces, turning brightly emissive, and its lifetime allows discrimination of plastics in nature.

In the current study, we propose a new quantitative read-across methodology for predicting the toxicity of newly synthesized NPs based on the similarity with structural analogues.

High throughput imaging is used to assess hatching, lethality and malformations in zebrafish embryos and is suitable for hazard ranking of different nanomaterials.

The pollutant Reactive Red 2 is transformed into graphene-like carbon nanosheet (GCN) by simple pyrolysis, and this GCN nanocatalyst is shown to efficiently degrade tetracycline by peroxymonosulfate activation via nonradical oxidation processes.

Biodegradable rare earth doped fluorapatite has been developed as a luminescence probe for the detection of both radioactive and nonradioactive ions.

This work quantifies the core–shell structure of nano-confined CO₂ molecules under pressure in silica pores using in operando small-angle neutron scattering (SANS) measurements and molecular dynamics simulations.

The rate of heteroaggregation between branched polyethylenimine stabilized gold nanoparticles and a model colloid (glass beads) was correlated with the degree to which the nanoparticles were coated by natural organic matter.

Bi₂O₃/nylon multilayered nanocomposite membrane was fabricated by electrospinning and effectively used to degrade organic dye pollutants and pathogens through ROS produced by photocatalysis.

Key elements of Geobacter's extracellular electron transfer mechanism are characterized combining respiratory formed gold nanoparticles with spectro-electrochemical and microelectrode techniques.

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

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

Nanotechnology has introduced a new generation of adsorbents like carbon nanotubes (CNTs), which have drawn a widespread attention due to their outstanding ability for the removal of various inorganic and organic pollutants.

The physicochemical characteristics of GO are significantly changed under the UV/vis fraction of solar light, which affects GO's environmental fate.

Silver nanoparticles (AgNPs) and other ionizing engineered nanomaterials (ENMs) are candidates for the development of antimicrobial agents due to their efficacy, multiple modes of bacterial inactivation, and tunability with respect to both the magnitude and mechanisms of antimicrobial activity.

Released QD–PMMA microplastic toxic to S. oneidensis.

Single particle ICP-MS is used to characterize the evolving magnitude, rate, and form of CNT release from photodegrading polymer nanocomposites.

N4mics facilitates the identification of correlations between nanomaterial characteristics and biological responses.

Using highly characterized gold nanoparticles this study determined that ligand identity, nanoparticle surface charge and aggregation type alters toxicity of gold nanoparticles to Daphnia magna.