41051

Sigma-Aldrich

Atto 488

suitable for fluorescence, ≥90% (HPCE)

NACRES:
NA.32

Quality Level

product line

BioReagent

assay

≥90% (HPCE)

fluorescence

λex 504 nm; λem 521 nm in 0.1 M phosphate pH 7.0

suitability

suitable for fluorescence

storage temp.

−20°C

General description

Atto 488 is a labeling dye with high molecular absorption (90,000) and quantum yield (0.80) as well as sufficient Stokes shift between excitation and emission maximum. It is optimized for excitation with an argon laser, and is characterized by high photostability.

Application

Atto fluorescent labels are designed for high sensitivity applications, including single molecule detection. Atto labels have rigid structures that do not show any cis-trans-isomerization. Thus these labels display exceptional intensity with minimal spectral shift on conjugation. Atto 488 is suitable for preparation of fluorescence labeling reagents and the study of its physicochemical properties.

Legal Information

This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Silviya Zustiak et al.
Journal of biomedical optics, 17(12), 125004-125004 (2012-12-05)
Fluorescence correlation spectroscopy (FCS) is increasingly being used to assess the movement of particles diffusing in complex, optically dense surroundings, in which case measurement conditions may complicate data interpretation. It is considered how a single-photon FCS measurement can be affected...
Analysis of fluorescent nanostructures in biological systems by means of spectral position determination microscopy (SPDM).
Muller, P., et al. et al.
Current Microscopy Contributions to Advances in Science and Technology, 1, 3-12 (2012)
Monitoring single membrane protein dynamics in a liposome manipulated in solution by the ABELtrap.
Rendler, T., et al.
arXiv, 1102-1102 (2011)
Jeanne C Stachowiak et al.
Nature cell biology, 14(9), 944-949 (2012-08-21)
Curved membranes are an essential feature of dynamic cellular structures, including endocytic pits, filopodia protrusions and most organelles. It has been proposed that specialized proteins induce curvature by binding to membranes through two primary mechanisms: membrane scaffolding by curved proteins...
Markus Hirsch et al.
Biological chemistry, 393(1-2), 23-35 (2012-05-26)
Investigations into the fate of small interfering RNA (siRNA) after transfection may unravel new ways to improve RNA interference (RNAi) efficiency. Because intracellular degradation of RNA may prevent reliable observation of fluorescence-labeled siRNA, new tools for fluorescence microscopy are warranted...

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