ISO/TS 23034:2021

Nanotechnologies — Method to estimate cellular uptake of carbon nanomaterials using optical absorption

This document describes a near-infrared optical absorption method to estimate the in vitro cellular uptake of carbon nanomaterials including both internalized and/or tightly adhered to the cell membrane from liquid dispersions. This is a simple method to screen carbon nanomaterials uptake; additional analysis using a different technique can be required if quantification is desired.