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Merck
CN

03004

Abberior® STAR 512, maleimide

for STED application

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About This Item

NACRES:
NA.32
UNSPSC Code:
12352111
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Product Name

Abberior® STAR 512, maleimide, for STED application

mol wt

Mw 861.7 g/mol

concentration

≥50% (degree of coupling)

solubility

DMF: 0.25 mg/mL, clear

fluorescence

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

storage temp.

−20°C

Quality Level

Application

Abberior® Star 512 labelled phosphoethanolamine lipid analogues were used for gated STED-FCS (stimulated emission depletion - fluorescence correlation spectroscopy) study.
Designed and tested for fluorescent super-resolution microscopy

General description

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)

Legal Information

abberior is a registered trademark of Abberior GmbH

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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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
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
Beitraege zur Theorie des Mikroskops und der mikroskopischen Wahrnehmung.
Abbe, E.
Archiv fur Mikroskopische Anatomie, 9, 413-420 (1873)
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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