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abberior STAR 488


Item number
ST488

Description

abberior STAR 488 was developed for STED and confocal microscopy in the green spectral region. It can be very effectively excited with the prominent 488 nm laser line. For STED microscopy, this fluorescent dye can be efficiently used with STED laser wavelengths between 590 - 610 nm. Introducing negatively charged groups into its molecular structure making the dye excellent water soluble. Our abberior STAR 488 can substitute dyes like Oregon Green® 488, ATTO® 488 or Alexa Fluor® 488. Together with our abberior STAR 440SXP you can obtain optimal 2 color STED results with a single depletion laser. Best results are obtained with freshly prepared samples.

Properties

Absorption
Absorption
503
Extinction Coefficient
Extinction Coefficient
65000
Emission
Emission
524
Quantum Efficiency
Quantum Efficiency
89
STED min.
STED min.
590
STED max.
STED max.
610
Fluorescence Lifetime
Fluorescence Lifetime
3.9
Correction Factor 260
Correction Factor 260
0.28
Correction Factor 280
Correction Factor 280
0.14
Charge
Charge
-2

Photophysical properties were measured for carboxylic acid in PBS pH 7.4. Fluorescence Lifetime was measured in MeOH + 0.05% TFA.





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