800.304.5357

Products > Applications > Cell Biology > Membrane potential dyes

Membrane potential dyes

These are cytoplasmic membrane dyes that undergo fluorescence changes in response to membrane potential. There are so-called fast-response and slow-response membrane potential dyes. Dyes in the first category respond to membrane potential change by changing their intramolecular electron distribution, which in turn causes fluorescence change. Because electron distribution change does not require any physical movement of the dyes, the response is typically fast. However, fast-response dyes typically show only about 2-10% fluorescence change per 100 mV. Slow-response dyes are dyes whose fluorescence change relies on the transmembrane movement of the dyes in the electrical field. Slow-response dyes typically show a greater response than fast-response membrane dyes. Recently, as much as 30% fluorescence change per 100 mV has been achieved using a combination of a cytoplasmic membrane dye, DiOC16(3), and a lipophilic quencher, DPA.

     

     


Cat#
Product Name
Unit Size
Unit Price
61015
5mg
$225
61013
5mg
$215
61010
5mg
$140
61014
5mg
$215
61012
5mg
$195
61011
25mg
$100
70015
100mg
$110
30037
each
$195
70008
100mg
$115
70007
100mg
$115
70009
100mg
$120
60038
25mg
$210
60037
25 mg
$150
70014
5mg
$155
30001
100 assays
$215
61018
5mg
$120
61016
5mg
$175
61017
25mg
$175
61019
5mg
$175
80103
25 mg
$33