Selecting the right fluorescent cell stains for imaging and cytometry applications

27 May 2026

This guide from Biotium provides an overview of fluorescent cell stains and their use in imaging and cytometry workflows. Discover how different probe types target specific cellular structures, including membranes, cytoplasm, nucleus, and organelles. The resource also outlines considerations for selecting appropriate dyes based on experimental needs, and highlights approaches for distinguishing live and dead cells, monitoring apoptosis, and improving signal specificity for reliable cell analysis.

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Flow Cytometry / Cell CountingFlow cytometers are used to count, sort and examine multiple characteristics of cells. Other cell analysis equipment includes image cytometers, cell counters, fluorescence-activated cell sorters (FACS), magnetic-activated cell sorters (MACS), and a range of flow cytometry assay kits. Flow cytometers can reveal information on cell viability, cell proliferation, apoptosis and cell cycle progression, as well as identify cell populations and intracellular or cell-surface molecules. Additionally, some flow cytometers, known as FACS, have an additional sorting function after analysis. Cell counters and image cytometers count live and dead cell populations and can also conduct cell proliferation assays. Find the best flow cytometers, cell counters and cell sorters in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell ImagingCell imaging can be achieved using a number of techniques including confocal microscopy, transmission electron microscopy, atomic force microscopy, and light sheet microscopy.FluorescenceThe emission of fluorescence occurs when a photon of energy is supplied to a fluorescent chemical compound by an external source, causing it to become excited. Fluorescence can be detected and measured for different purposes using microplate readers, fluorescence microscopes, fluorescence scanners, and flow cytometers.Staining