What are the reasons for cell viability of more than 100% for DMSO control vehicle in MTT assay?

I performed MTT assay for assessing the cytotoxicity of curcumin (0-50uM) on LPS-stimulated THP-1 macrophages, and used DMSO as control vehicle. While calculating the cell viability% for DMSO, I...

27 June 2018 8,208 6 View