Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Copper, silver, and titania nanoparticles do not release ions under anoxic conditions and release only minute ion levels under oxic conditions in water: Evidence for the low toxicity of nanoparticles

Marina R. Mulenos, Jiaqi Liu, Henry Lujan, Binglin Guo, Éric Lichtfouse, Virender K. Sharma, Christie M. Sayes

Environmental Chemistry Letters · 2020

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Summary

This 2020 laboratory study examined the aqueous ion release behaviour of copper, silver, and titania nanoparticles under contrasting oxygen conditions. The findings, as suggested by the title, indicate that these nanoparticles release negligible or minute quantities of ions in water, with minimal release under anaerobic conditions and only trace levels under aerobic conditions. The results contribute to understanding the chemical stability and potential low toxicity profile of these engineered nanomaterials in aqueous environments.

UK applicability

The findings may inform UK environmental risk assessments and water quality monitoring protocols for engineered nanoparticles, particularly relevant to regulations governing nanomaterial release in agricultural and industrial settings. However, field conditions in UK soils and freshwaters may differ substantially from the controlled laboratory conditions described.

Key measures

Ion release rates; dissolved copper, silver, and titanium ion concentrations under anoxic and oxic conditions in water

Outcomes reported

The study assessed ion release from copper, silver, and titania nanoparticles under anoxic and oxic aqueous conditions. The research measured dissolved ion concentrations to evaluate the potential toxicity and environmental behaviour of these engineered nanoparticles.

Theme
Measurement & metrics
Subject
Pesticides, contaminants & food safety
Study type
Research
Study design
Laboratory / in vitro
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Laboratory / in vitro
DOI
10.1007/s10311-020-00985-z
Catalogue ID
SNmov5ix44-l2ric6

Topic tags

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