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53366

Sigma-Aldrich

Anti-Mouse IgG−Abberior® STAR 488 antibody produced in goat

for STED application

Synonym(s):

Abberior® STAR 488-Anti--Mouse−IgG antibody produced in goat

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

biological source

goat

Quality Level

antibody form

affinity isolated antibody

antibody product type

secondary antibodies

clone

polyclonal

form

buffered aqueous solution

species reactivity

mouse

availability

available only in USA and Canada

concentration

~1 mg/mL

fluorescence

λex 503 nm; λem 524 nm in PBS, pH 7.4

storage temp.

−20°C

General description

Abberior STAR 488 was developed for STED and confocal microscopy in the green spectral region. It is a bright green fluorescent dye. The dye works extremely well with Abberior Instruments Expert Line microscopes and Leica STED microscopes. It can be very effectively excited with the prominent 488 nm laser line. For STED microscopy, Abberior STAR 488 can be efficiently used with STED Laser wavelengths between 590 - 610 nm. Abberior STAR 488 can substitute dyes like Oregon Green 488, Atto 488 or Alexa Fluor 488. Abberior STAR 488 is the ideal partner for Abberior STAR 440SXP to obtain optimal 2 Color STED results. Best results are obtained with freshly prepared samples.

Photophysical properties (carboxylic acid):
Absorption Maximum, λex [nm]: 503 (PBS pH 7.4), 504 (H2O), 507 (MeOH + 0.1% TFA)
Extinction Coefficient, εmax [M-1cm-1]: 65 000 (PBS pH 7.4), 80 000 (H2O), 85 000 (MeOH + 0.1% TFA)
Correction Factor, CF260 = ε260max: 0,28 (PBS pH 7.4)
Correction Factor, CF280 = ε280max: 0,14 (PBS pH 7.4)
Fluorescence Maximum, λem [nm]: 524 (PBS pH 7.4), 525 (H2O), 531 (MeOH + 0.1% TFA)
Recommended STED Wavelength, λ [nm]: 590 - 610
Fluorescence Quantum Yield, λ: 0,89 (PBS pH 7.4)
Fluorescence Lifetime, τ [ns]: 3,9 (PBS pH 7.4)

Suitability

Designed and tested for fluorescent super-resolution microscopy

Analysis Note

May contain significant amounts of BSA as stabilizer
unconjugated dye ≤5% of total fluorescence

Legal Information

ALEXA FLUOR is a trademark of Life Technologies
Atto is a trademark of Atto-Tec GmbH
abberior is a registered trademark of Abberior GmbH

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Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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

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