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Thermo Scientific™ DyLight™ In Vivo Apoptosis Detection Kits and Reagents

Measure drug-induced changes in apoptosis in vivo (live animal imaging) using near-infrared DyLight Dye fluorescent polycaspase probes.

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Thermo Scientific™
DyLight 690 In Vivo Control Reagent 1 vial This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.


Thermo Scientific™ DyLight 690 and DyLight 747 In Vivo Apoptosis Detection Kits offer an accurate method to detect apoptosis in small-animal imaging.

These kits contain a DyLight 690- or DyLight 747-conjugated in vivo polycaspase probe, which is a cell-permeable fluorescent detector of active caspases indicative of apoptosis. The probes are comprised of a polycaspase peptide sequence (VAD) and a fluoromethyl ketone (FMK) moiety, which facilitate irreversible binding of the probe to active caspases, and either DyLight 690 or DyLight 747 Dye for near-infrared detection with a range of in vivo instrumentation. These probes are valuable for in vivo drug determination studies, because changes in apoptosis from drug reactivity can be measured by fluorescence imaging in live animals. An increase in apoptosis produces a greater attachment of probes and, subsequently, an increase in fluorescence output. The in vivo technique is nondestructive, thus eliminating the need to remove cells and tissues from sacrificed animals prior to analysis (which induces further apoptosis). Additionally, apoptosis can be monitored in a single animal at multiple time points, reducing the number of animals required for a given study.


  • Nontoxic–not harmful to valuable research animals

  • Cell-permeable–readily diffuses through all cells as it circulates throughout the body

  • Selective for active caspases–eliminates high background and false-positive results common with other caspase detection methods

Recommended for:

Small-animal in vivo apoptosis imaging

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