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68221

Sigma-Aldrich

Abberior® STAR 440SXP, NHS ester

for long Stokes STED and 2-color STED application

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UNSPSC Code:
12352108
NACRES:
NA.32

Quality Level

Assay

≥80.0% (degree of coupling)

form

solid

mol wt

Mw 597.5 g/mol

solubility

DMF: 1 mg/mL, clear

fluorescence

λex 440 nm; λem 511 nm±10 nm in PBS, pH 7.4

storage temp.

−20°C

General description

Absorption Maximum, λmax: 433 nm (MeOH)
432 nm (PBS, pH 7.4)
Extinction Coefficient, ε(λmax): 36,000 M-1cm-1 (MeOH)
33,000 M-1cm-1 (PBS, pH 7.4)
Correction Factor, CF260 = ε260/εmax: 0.47 (PBS, pH 7.4)
Correction Factor, CF280 = ε280/εmax: 0.31 (PBS, pH 7.4)
Fluorescence Maximum, λfl: 502 nm (MeOH),
511 nm (PBS, pH 7.4)
Recommended STED Wavelength, λSTED: 590 − 620 nm
Fluorescence Quantum Yield, η: 0.57 (PBS, pH 7.4)
Fluorescence Lifetime, τ: 3.7 ns (PBS, pH 7.4)

Application

  • Abberior STAR 440SXP goat anti-mouse antibody has been used for STED (stimulated emission depletion) microscopy imaging of primary hippocampal cells.
  • Secondary anti-mouse antibody conjugated with Abberior STAR 440SXP has been used for gated STED microscopy imaging of viral capsid.
  • Abberior STAR 440SXP goat anti-rabbit antibody has been used for two-color STED microscopy imaging of olfactory epithelium.

Suitability

Designed and tested for fluorescent super-resolution microscopy

Legal Information

6538 is a trademark of American Type Culture Collection
abberior is a registered trademark of Abberior GmbH

related product

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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I-Hsuan Wang et al.
Cell host & microbe, 14(4), 468-480 (2013-10-22)
Viral DNA trafficking in cells has large impacts on physiology and disease development. Current methods lack the resolution and accuracy to visualize and quantify viral DNA trafficking at single-molecule resolution. We developed a noninvasive protocol for accurate quantification of viral DNA-genome
Linda Westin et al.
BMC neuroscience, 15, 45-45 (2014-03-29)
Norbin is a neuron-specific, cytosolic protein that interacts with the metabotropic glutamate receptor 5 (mGluR5) and has a profound impact on mGluR5 signaling. Yet, little is known about its synaptic distribution. Here we have analyzed the spatial relationship between Norbin
Bastian Henkel et al.
Chemical senses, 40(2), 73-87 (2014-12-17)
Vertebrates can sense and identify a vast array of chemical cues. The molecular machinery involved in chemodetection and transduction is expressed within the cilia of olfactory sensory neurons. Currently, there is only limited information available on the distribution and density
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

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