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03004

Sigma-Aldrich

Abberior® STAR 512, maleimide

for STED application

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About This Item

Code UNSPSC :
12352111
Nomenclature NACRES :
NA.32

Poids mol.

Mw 861.7 g/mol

Concentration

≥50% (degree of coupling)

Solubilité

DMF: 0.25 mg/mL, clear

Fluorescence

λex 512 nm; λem 530 nm±5 nm in PBS, pH 7.4

Température de stockage

−20°C

Description générale

Absorption Maximum, λmax: 517 nm (MeOH),
511 nm (PBS, pH 7.4)
Extinction Coefficient, ε(λmax): 85,000 M-1cm-1 (PBS, pH 7.4)
Correction Factor, CF260 = ε260/εmax: 0.24 (PBS, pH 7.4)
Correction Factor, CF280 = ε280/εmax: 0.07 (PBS, pH 7.4)
Fluorescence Maximum, λfl: 533 nm (MeOH),
530 nm (PBS, pH 7.4)
Recommended STED Wavelength, λSTED: 590 −620 nm
Fluorescence Quantum Yield, η: 0.82 (PBS, pH 7.4)
Fluorescence Lifetime, τ: 4.1 ns (PBS, pH 7.4)

Application

Abberior® Star 512 labelled phosphoethanolamine lipid analogues were used for gated STED-FCS (stimulated emission depletion - fluorescence correlation spectroscopy) study.

Adéquation

Designed and tested for fluorescent super-resolution microscopy

Informations légales

abberior is a registered trademark of Abberior GmbH

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Mathias P Clausen et al.
Methods (San Diego, Calif.), 88, 67-75 (2015-07-01)
Recent years have seen the development of multiple technologies to investigate, with great spatial and temporal resolution, the dynamics of lipids in cellular and model membranes. One of these approaches is the combination of far-field super-resolution stimulated-emission-depletion (STED) microscopy with
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
T A Klar et al.
Optics letters, 24(14), 954-956 (2007-12-13)
We overcame the resolution limit of scanning far-field fluorescence microscopy by disabling the fluorescence from the outer part of the focal spot. Whereas a near-UV pulse generates a diffraction-limited distribution of excited molecules, a spatially offset pulse quenches the excited
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
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

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