ISO 4962:2024

Nanotechnologies — In vitro acute nanoparticle phototoxicity assay

This document specifies a procedure to evaluate acute phototoxicity of nanoparticles (NPs), suspended in cell culture media, by measuring the relative reduction in cellular viability under near ultraviolet (UVA) exposure (315?nm to 400?nm).

The measurement is intended to assess the potential for acute phototoxicity of NPs by comparing NP photoactivity in vitro to a positive control chlorpromazine. It is not designed to predict other joint effects of nanomaterials and light, such as genotoxicity, photo-allergy or photo-mutagenicity. The method is also applicable to NP aggregates and agglomerates.

Edition	2024
Published Date	2024
Published By	International Standardization Organisation
Page Count	22