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38377

Sigma-Aldrich

Abberior® STAR 580, NHS ester

for STED application

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About This Item

UNSPSC Code:
12352108
NACRES:
NA.32

Quality Level

Assay

≥70.0% (degree of coupling)

solubility

DMF: 1 mg/mL, clear

fluorescence

λex 583 nm; λem 605.0 nm±10 nm in PBS, pH 7

storage temp.

−20°C

General description

Abberior STAR 580 is the latest development for STED microscopy with a fluorescent dye in the orange regime. The dye can be excited from 550 to 580 nm. Abberior STAR 580 can substitute dyes like Atto 590/594 or AlexaFluor 584/594. The dye can most effectively be depleted in STED microscopy at 700 to 780 nm via e.g. a Ti:Sa laser or IR diodes.

Abberior STAR 580 is the dye of choice for orange fluorescence. Moreover, the dye is particularly designed and tested for 2-color STED microscopy in combination with Abberior STAR 635 using 2 separate STED wavelength. This offers the great advantage of using 2 regular (not featuring a long Stokes-shift) dyes, which are in general more photostable. Please see our 2-color dye section

Key features
  • Exceptionally bright orange fluorescent dye
  • Ideal for STED microscopy at 700-775 nm
  • 2-color labeling partner with STAR 635P for 2-color STED microscopy


Absorption Maximum, λmax:: 587 nm (PBS, pH 7.4; water)
584 nm (MeOH, aq. ACN)
Extinction Coefficient, ε(λmax):85,000 M-1cm-1 (PBS, pH 7.4)
Correction Factor, CF260 = ε260/εmax: 0.17 (PBS, pH 7.4; water)
Correction Factor, CF280 = ε280/εmax: 0.15 (MeOH, aq. ACN)
Fluorescence Maximum, λfl:607 nm (PBS, pH 7.4)
604 nm (MeOH, aq. ACN)
Recommended STED Wavelength, λSTED:700 - 780 nm
Fluorescence Quantum Yield, η:0.90 (PBS, pH 7.4)
Fluorescence Lifetime, τ: 3.5 ns (PBS, pH 7.4)


Application

Anti-Mouse IgG-Abberior® STAR 580 antibody produced in goat has been used for STED (stimulated emission depletion) microscopy in CA3 (Cornus Ammonis) sections. Abberior® STAR 580 conjugated with secondary antibody has been used for dual-color STED imaging of cultured hippocampal neurons.

Suitability

Designed and tested for fluorescent super-resolution microscopy

Legal Information

Atto is a trademark of Atto-Tec GmbH
abberior is a registered trademark of Abberior GmbH

related product

Product No.
Description
Pricing

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Daniela Ivanova et al.
The EMBO journal, 34(8), 1056-1077 (2015-02-06)
Persistent experience-driven adaptation of brain function is associated with alterations in gene expression patterns, resulting in structural and functional neuronal remodeling. How synaptic activity-in particular presynaptic performance-is coupled to gene expression in nucleus remains incompletely understood. Here, we report on
Pawel Fidzinski et al.
Nature communications, 6, 6254-6254 (2015-02-05)
KCNQ2 (Kv7.2) and KCNQ3 (Kv7.3) K(+) channels dampen neuronal excitability and their functional impairment may lead to epilepsy. Less is known about KCNQ5 (Kv7.5), which also displays wide expression in the brain. Here we show an unexpected role of KCNQ5
Marcus Dyba et al.
Nature biotechnology, 21(11), 1303-1304 (2003-10-21)
We report immunofluorescence imaging with a spatial resolution well beyond the diffraction limit. An axial resolution of approximately 50 nm, corresponding to 1/16 of the irradiation wavelength of 793 nm, is achieved by stimulated emission depletion through opposing lenses. We
Volker Westphal et al.
Physical review letters, 94(14), 143903-143903 (2005-05-21)
Utilizing single fluorescent molecules as probes, we prove the ability of a far-field microscope to attain spatial resolution down to 16 nm in the focal plane, corresponding to about 1/50 of the employed wavelength. The optical bandwidth expansion by nearly
Stefan W Hell
Nature biotechnology, 21(11), 1347-1355 (2003-11-05)
For more than a century, the resolution of focusing light microscopy has been limited by diffraction to 180 nm in the focal plane and to 500 nm along the optic axis. Recently, microscopes have been reported that provide three- to

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