Processing

Please wait...

Settings

Settings

Goto Application

1. AU1996062643 - Detection of transmembrane potentials by optical methods

Office Australia
Application Number 62643/96
Application Date 06.06.1996
Publication Number 1996062643
Publication Date 20.02.1997
Publication Kind A
IPC
G01N 21/78
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
77by observing the effect on a chemical indicator
78producing a change of colour
C07D 209/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
209Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
02condensed with one carbocyclic ring
04Indoles; Hydrogenated indoles
08with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring
C07D 213/74
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
213Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
02having three double bonds between ring members or between ring members and non-ring members
04having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
60with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
72Nitrogen atoms
74Amino or imino radicals substituted by hydrocarbon or substituted hydrocarbon radicals
C07D 215/22
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
215Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
02having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
16with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
20Oxygen atoms
22attached in position 2 or 4
C07D 215/48
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
215Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
02having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
16with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
48Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
C07D 215/50
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
215Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
02having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
16with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
48Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
50attached in position 4
CPC
C07D 209/08
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
209Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
02condensed with one carbocyclic ring
04Indoles; Hydrogenated indoles
08with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring
C07D 239/60
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
239Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
02not condensed with other rings
24having three or more double bonds between ring members or between ring members and non-ring members
28with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
46Two or more oxygen, sulfur or nitrogen atoms
60Three or more oxygen or sulfur atoms
C07D 239/62
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
239Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
02not condensed with other rings
24having three or more double bonds between ring members or between ring members and non-ring members
28with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
46Two or more oxygen, sulfur or nitrogen atoms
60Three or more oxygen or sulfur atoms
62Barbituric acids
C07D 239/66
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
239Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
02not condensed with other rings
24having three or more double bonds between ring members or between ring members and non-ring members
28with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
46Two or more oxygen, sulfur or nitrogen atoms
60Three or more oxygen or sulfur atoms
66Thiobarbituric acids
C07D 311/16
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
311Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
02ortho- or peri-condensed with carbocyclic rings or ring systems
04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
06with oxygen or sulfur atoms directly attached in position 2
08not hydrogenated in the hetero ring
16substituted in position 7
C07F 5/003
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
5Compounds containing elements of Groups 3 or 13 of the Periodic System
003without C-Metal linkages
Applicants Regents of the University of California, The
Agents FB Rice Pty Ltd
Priority Data 08481977 07.06.1995 US
Title
(EN) Detection of transmembrane potentials by optical methods
Abstract
(EN)
Methods and compositions are provided for determining the potential of a membrane. In one aspect, the method comprises: (a) introducing a first reagent comprising a hydrophobic fluorescent ion capable of redistributing from a first face of the membrane to a second face of the membrane in response to changes in the potential of the membrane, as described by the Nernst equation, (b) introducing a second reagent which labels the first face or the second face of the membrane, which second reagent comprises a chromophore capable of undergoing energy transfer by either (i) donating excited state energy to the fluorescent ion, or (ii) accepting excited state energy from the fluorescent ion, (c) exposing the membrane to radiation; (d) measuring energy transfer between the fluorescent ion and the second reagent, and (e) relating the energy transfer to the membrane potential. Energy transfer is typically measured by fluorescence resonance energy transfer. In some embodiments the first and second reagents are bound together by a suitable linker. In one aspect the method is used to identify compounds which modulate membrane potentials in biological membranes.

Other related publications