4-(2-(6-(Dibutylamino)-2-naphthalenyl)ethenyl)-1-(3-sulfopropyl)pyridinium hydroxide inner salt has been used as a voltage sensitive dye in cardiac cells.[1]
Biochem/physiol Actions
Membrane potential dye that responds to changes in membrane potential monitored by fluorescence excitation changes at 440 and 505 nm; correlated to changes in membrane potential of the cell.
American journal of physiology. Heart and circulatory physiology, 298(5), H1616-H1625 (2010-03-17)
Sarcomere length (SL) is an important determinant and indicator of cardiac mechanical function; however, techniques for measuring SL in living, intact tissue are limited. Here, we present a technique that uses two-photon microscopy to directly image striations of living cells
Excitable media can support spiral waves rotating around an organizing centre. Spiral waves have been discovered in different types of autocatalytic chemical reactions and in biological systems. The so-called 're-entrant excitation' of myocardial cells, causing the most dangerous cardiac arrhythmias
Biochimica et biophysica acta, 1068(2), 149-156 (1991-09-30)
The voltage sensitivity of fluorescence of an aminobenzstyryl-pyridinium dye (di4-ANEPPS) is characterized in Retzius cells dissociated from the leech. The modulation of the complete spectra of excitation and emission is determined. The spectral changes induced by depolarization are described by
Frontiers in neural circuits, 14, 24-24 (2020-06-26)
cAMP is a positive regulator tightly involved in certain types of synaptic plasticity and related memory functions. However, its spatiotemporal roles at the synaptic and neural circuit levels remain elusive. Using a combination of a cAMP optogenetics approach and voltage-sensitive
Frontiers in cellular neuroscience, 12, 389-389 (2018-11-09)
Activity-dependent changes in the input-output (I-O) relationship of a neural circuit are central in the learning and memory function of the brain. To understand circuit-wide adjustments, optical imaging techniques to probe the membrane potential at every component of neurons, such
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