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Sigma-Aldrich

Abberior® STAR 580, NHS ester

for STED application

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About This Item

Codice UNSPSC:
12352108
NACRES:
NA.32

Livello qualitativo

Saggio

≥70.0% (degree of coupling)

Solubilità

DMF: 1 mg/mL, clear

Fluorescenza

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

Temperatura di conservazione

−20°C

Descrizione generale

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)


Applicazioni

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.

Compatibilità

Designed and tested for fluorescent super-resolution microscopy

Note legali

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

Prodotti correlati

N° Catalogo
Descrizione
Determinazione del prezzo

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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The EMBO journal, 34(8), 1056-1077 (2015-02-06)
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S W Hell et al.
Optics letters, 19(11), 780-782 (1994-06-01)
We propose a new type of scanning fluorescence microscope capable of resolving 35 nm in the far field. We overcome the diffraction resolution limit by employing stimulated emission to inhibit the fluorescence process in the outer regions of the excitation
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
Tim Grotjohann et al.
Nature, 478(7368), 204-208 (2011-09-13)
Lens-based optical microscopy failed to discern fluorescent features closer than 200 nm for decades, but the recent breaking of the diffraction resolution barrier by sequentially switching the fluorescence capability of adjacent features on and off is making nanoscale imaging routine. Reported

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