A fluorinated voltage sensitive dye has the structure
wherein p is 0, 1, or 2; X
q−
is an anionic counterion having a charge, q, that is 1 or 2; n is 1 or 2; R
1
is an optionally substituted C
1
-C
12
, alkyl; R
2
is hydrogen, and R
3
is hydrogen or fluorine; or R
2
and R
3
collectively form a divalent —CH═CH—CH═CH— group; R
4
and each occurrence of R
5
are each independently hydrogen or fluorine; R
6
is hydrogen or fluorine or trifluoromethyl; and each occurrence of R
7
is independently C
1
-C
6
alkyl;
provided that the dye comprises at least one fluorine atom. The dye is particularly useful for monitoring the dynamics of action potentials in axons and/or dendrites.
                            一种
氟化电压敏感
染料具有以下结构式,其中p为0、1或2;Xq-是带有1或2电荷的阴离子计数离子;n为1或2;R1为可选取代的C1-C12烷基;R2为氢,R3为氢或
氟;或R2和R3共同形成二价的-CH═CH—CH═CH-基团;R4和每个R5的出现都是独立的氢或
氟;R6为氢、
氟或三
氟甲基;每个R7的出现都是独立的C1-C6烷基;前提是该
染料至少包含一个
氟原子。该
染料特别适用于监测轴突和/或树突中动作电位的动态变化。