A Novel Natural Dye for Screening Cell Viability (image) Tokyo University of Science Share Print E-Mail Caption Staining live and dead cells using Monascus pigment solution. Live cells are not stained, but dead cells are stained. Credit Tokyo University of Science Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.