NovaFluor Yellow 810 excitation shown as dotted line and emission shown as solid red histogram
4561810/25551813(in buffer) 2
flow cytometry

Invitrogen NovaFluor Yellow 810 dye has a unique emission spectrum when excited by the 561 nm laser, which fits in a spectral space that is currently not accessible by other spectral dyes. Additionally, its narrow excitation spectrum can be paired with that of NovaFluor Blue 800 dye to replace the broad excitation spectrum of PE/Fire 810 dye. Adding spectrally unique dyes may allow for building out larger panels with minimal loss of resolution.

NovaFluor Yellow 810 dye should generally be paired with moderately to highly expressed antigens in multicolor panels. The macromolecule-based NovaFluor Yellow 810 dye produces highly stable fluorescence, and stained samples retain their fluorescence intensity and spectral signature when stored at 4°C. Use NovaFluor dyes with CellBlox Plus Blocking Buffer to reduce background and to block non-specific binding of NovaFluor labels, PE and APC tandems observed with macrophages and monocytes.

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Benefits of NovaFluor Yellow 810 dye
  • Narrow emission spectrum and minimal cross-laser excitation for better resolution
  • Pair with NovaFluor Blue 800 to replace PE/Fire 810’s broad excitation profile
  • Should be paired with moderately expressed antigens to minimize spillover
  • Produces stable fluorescence and is compatible with all buffers tested
Experimental data using NovaFluor Yellow 810 dye

Spectral signature of NovaFluor Yellow 810 dye. Normal human peripheral blood cells stained with anti-CD4 antibody (clone SK3) conjugated to NovaFluor Yellow 810 dye were used for analysis. Data was acquired on a 5-laser Cytek Aurora system. 

Flow scatter plot of NovaFluor Yellow 810 dye stained CD8a vs NovaFluor Blue 800 dye stained CD27

NovaFluor Yellow 810 dye can be paired with NovaFluor Blue 800 dye while providing resolution and low spillover spread. Human peripheral blood cells (PBMCs) were stained with CD27 NovaFluor Blue 800 dye and CD8 NovaFluor Yellow 810 dye. Viable cells were used for analysis, as determined by LIVE/DEAD Fixable Blue Dead Cell Stain Kit, for UV excitation. Data was collected on a 5-laser Cytek Aurora Flow Cytometer.

NovaFluor dyes

NovaFluor dyes are built using Phiton technology and are compatible with both spectral flow cytometry and traditional flow cytometry. NovaFluor dyes exhibit narrow excitation spectra and minimal cross-laser excitation, which helps reduce spectral spillover for better marker resolution. In addition, their unique spectral signatures can provide the opportunity to detect additional markers in flow cytometry panels by opening up previously unusable channels.

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