ANNINE-6plus

ANNINE-6plus is a water soluble voltage sensitive dye (also called potentiometric dyes). This compound was developed at the Max Planck Institute for Biochemistry in Germany.[1] It is used to optically measure the changes in transmembrane voltage of excitable cells, including neurons, skeletal and cardiac myocytes.

ANNINE-6plus
Identifiers
3D model (JSmol)
ChemSpider
Properties
C39H47Br2N3
Molar mass 717.634 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Voltage sensitivity

ANNINE-6plus has a fractional fluorescent intensity changeF/F per 100 mV change) of about 30% with single-photon excitation (~488 nm) and >50% with two-photon excitation (~1060 nm).

Applications

ANNINE-6plus has been applied in the microscopic imaging of action potentials of cardiomyocyte in perfused mice heart.[2] Using confocal microscopy in conjunction with ANNINE-6plus, single sweep action potentials with high peak signal-to-noise ratio (SNR) have been recorded from single transverse tubule (t-tubule) of a few micrometers in the ventricular cardiomyocyte.

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References

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