Testing times for tox robot

A new robotic system is set to test 10,000 chemicals commonly found in industrial and consumer products, food additives and pharmaceuticals. The compound list was compiled from 200 public databases and testing under the Tox21 program will provide science-based data useful in evaluating whether or not a wide range of chemicals has potential health effects. The system uses 1536-well microtiter plates, which allows the robot to handle 1408 samples and controls on a single per plate. Each plate represents a different concentration of the compounds to be tested. "Tox21 has used robots to screen chemicals since 2008 [more than 2,500 tested so far], but this new robotic system is dedicated to screening a much larger compound library," explains NHGRI Director Eric Green.