Themed collection Nano-bio interactions

We propose to include the time-dependent size distribution of dispersed and internalized nanoparticles (NPs) in the ecotoxicological evaluation of exposure of biota to NPs and to develop tools to add the particle dynamics in the bioavailability modelling of NPs.

Dissolution is a factor to consider when interpreting human health and ecotoxicological studies.

Various membrane models used to study nanoparticle interactions with the cell plasma membrane.

The key algal response mechanisms to cope with NP toxicity and implications for algal bloom control by NPs.

This review addresses nanotoxicology in the nematode roundworm Caenorhabditis elegans throughout its entire life span, premature functional aging of the target organs and ecological considerations.

Durian-like Zn/ZnO core/shell particles demonstrated excellent bacteria-killing properties and good dye degradation capability under all conditions where the killing power is related to superoxide (˙O₂⁻) and H₂O₂ radicals.

C. elegans worms encountering Cu₂O particles can either avoid and survive or they can ingest them and experience toxic effects. Phosphate induces particle oxidation and Cu ion precipitation, improving survival even after ingestion.

A plug-and-play continuous flow system was developed for convenient and green production of heterogeneous tellurium nanoparticles with safer antimicrobial activity.

The adsorption and unfolding behavior of bovine serum albumin onto catalytic- and food-grade titanium dioxide nanoparticles is dependent on the surface chemistry of the nanoparticles and their environmental exposure history.

Long-term exposure to Ni-NPs induced progressive and unrecoverable inhibition of the activity of the AGS.

Highlighted are the protein properties determining protein binding to the silver nanoparticle surface.

The antibacterial mechanism of CDs@AgNPs is interpreted clearly in the perspective of nano/cell interface interactions.

Analysing the dependence of bacteria adhesion on the diameter of nanofibres to improve cell-to-material adhesion for target applications.

The long-term low-dose cytotoxicity of VO₂ nanoparticles is much different from the short-term one.

The growing use of metallic nanoparticles in industry has resulted in their accumulation in agricultural land, which poses a serious threat to the yield and quality of crops worldwide.

New polyethylene micro/nanoparticles with a biosurfactant as model micro/nanoplastics to assess the toxicity of small plastics to aquatic organisms.

The wide applications of lithium intercalating complex metal oxides in energy storage devices call for a better understanding of their environmental impact at the end of their life cycle.

This work demonstrates for the first time that ceria nanoparticles can dissolve on the bacterial surface as a result of nano–bio interaction.

The increasing use of cerium dioxide nanoparticles (CeO₂ NPs) has raised concerns about their potential environmental toxicity.

The application of in silico methods in the risk assessment of metal oxide nanoparticles (MNPs) and data gap filling has found profound usability.

The risk of engineered silver nanoparticles to terrestrial plants and fauna (including humans through trophic transfer) is small.

Nanotechnology is a fast growing field and already a multi-billion dollar market with numerous consumer products.

A green method for the synthesis of one-dimensional (1D) trigonal selenium (t-Se) nanostructures is presented.

Polythiol molecules dissolve silver nanoparticles with kinetic rates that increase with the number of thiols per molecule and their pre-orientation.

The acidic properties of GO impair pollen performances of tobacco and hazel plants.

Nanoceria ROS scavenging is a key tool for understanding and improving plant tolerance to salinity, a stress that severely limits crop yield worldwide.

Determining the specific nanomaterial features that elicit adverse biological responses is important to inform risk assessments, develop targeted applications, and rationally design future nanomaterials.

Interaction between the AgNP coating and the cell membrane structure of Gram-negative E. coli reduces both the AgNP–cell affinity and AgNP mobility in porous media, but has little effect on the E. coli mobility. These mechanisms help to protect the bacteria against AgNP.

The environmental transformation of graphene oxide (GO) can significantly change its physicochemical properties, thus altering its toxicity.

Proteins involved in crucial metabolic pathways form the “hard” corona and affect the bioactivity of metal-based engineered nanoparticles.

The biological identity of nanoparticles depends on the organic compounds bound to the surface; however, compounds other than proteins are largely uninvestigated. This study highlights the presence of unique compound profiles within the corona of the tested nanoparticles.

Low concentrations of cationic silica nanoparticles impact lung surfactant membrane structure while anionic nanoparticles have minimal effect.

The differential effects and corresponding toxicity mechanisms of five metal oxide nanoparticles were investigated using zebrafish embryos and developing larvae.

Discrimination between nano (≥20 nm) and ionic Ag in earthworms exposed to Ag-NPs, Ag₂S-NPs and AgNO₃ reveals that accumulated silver is mainly present as ions.

The contribution of different uptake pathways of chemicals in D. magna in the presence of nanoplastics was clarified.

Nanotechnology-enabled consumer sprays with Ag may have antibacterial potential, but it is not based solely on nano-silver presence and concentration.