Apoptosis & Viability Assays

Biotium offers a wide selection of assay kits for cell viability and cell death for microplate reader, flow cytometry or fluorescence microscopy.

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  • Introduction

    Phalloidin conjugates are actin filament stains for fixed and permeabilized cells. CF® dye phalloidin conjugates consist of the mushroom toxin phalloidin labeled with our superior bright and photostable CF® fluorescent dyes. Phalloidin is available with a choice of 16 bright & photostable CF® dyes, biotin and other common fluorophore.

    ViaFluor® Live Cell Microtubule Stains are cell-permeable taxol probes for imaging the microtubule cytoskeleton in live cells. They are simple, rapid and sensitive stains that can be imaged without a wash step.


    The NucView® Caspase-3 Substrate comes in 3 colors, and measures caspase activity in real time, in live cells. MitoView™ 633 can measure the decrease in mitochondria membrane potential that occurs in early apoptosis. CF® Dye Annexin V conjugates come in many color options, and label PS on the membranes of late apoptotic cells. We also offer kits containing combinations of these probes. Live-or-Dye™ dead cell stains for flow or microscopy. Fluorescence- and absorbance-based microplate viability assays such as MTT, XTT, and resazurin. ATP-Glo™ Bioluminometric Cell Viability luciferase assay. ViaFluor® Cell Proliferation Kits.