Measurement of viability after single application: MTT test Step 4 (Day 3)
Last step of the Prediskin test involves removing the explants from the isopropanol solution, homogenizing the solutions and analyzing with a spectrophotometer in 96-well plates.
![Spectrophotometer](https://storage.googleapis.com/wepredic-master/django/images/spectrophotometer.max-1000x1000.jpg)