The Perfecta3D Cell Viability Kit, from 3D Biomatrix and Cayman Chemical, is a new assay kit for measuring the viability of 3-D spheroids and one of the first viability assays optimized for 3-D cell culture. The kit includes 3D Biomatrix’s Perfecta3D Hanging Drop Plates, which facilitate the consistent and controllable growth of small spherical 3-D clusters called spheroids in a well-plate format. The kit provides an easy-to-use format for studying cell proliferation in spheroids formed in the Hanging Drop Plates. The assay, based on the enzymatic cleavage of the tertrazolium salt WST-1 to formazan by cellular mitochondrial dehydrogenases in viable cells, will allow investigators to screen drug candidates involved in cell cycle regulation in a 3-D format.

3D Biomatrix, 734-272-4688, www.3dbiomatrix.com