Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B57/00—Other synthetic dyes of known constitution
  • C09B57/007—Squaraine dyes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
  • C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
  • C09K11/06—Luminescent materials, e.g. electroluminescent or chemiluminescent containing organic luminescent materials
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
  • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
  • G01N33/58—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
  • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
  • G01N33/58—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances
  • G01N33/582—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances with fluorescent label

Definitions

• the present invention relates to novel photoluminescent compounds, to a novel protein
• Photolurninescent compounds are known, and known photoluminescent compounds include
• squaraine dyes in particular the indolenine series of squaraine dyes, which are substituted and unsubstituted compounds of the general formula:
• Known indolenine squaraine dyes include both symmetrical and asymmetrical compounds
• the dye has to be dissolved in a solvent comprising a mixture of water and an alcohol such as
• test fluid sample the test fluid sample, and cannot therefore be used to determine the amount of protein
• Coomassie Blue used in the Bradford method, takes 20 - 30 mins and is not hindered by tris
• Silver stain is a very sensitive (10 - 100 ng/mL) chromatogenic-technique and is
• Coomassie Blue is also a gel stain and can be used instead of silver stain if
• the protein range is in the chromatogenic ⁇ g range.
• the present invention provides water-soluble photoluminescent compounds including a
• x may represent any integer, and in which the phenyl rings may be substituted.
• Further preferred compounds according to the invention include those which are unsubstituted or in which one or both phenyl rings are substituted in the 5-position with alkyl (including 'propyl and 'butyl) or halogen groups.
• Particularly preferred compounds according to the invention include 2,4-bis(l-(propan-3-
• sulfonic acid -3,3-frimethyl-2-indolinylidenemethyl)cyclobutenediylium-l,3-diolate or any metal or quaternary nitrogen (ie. ammonium, mono-, di- or IriaU ylar nomum, pyridinium etc) salt of the sulfonic acid.
• metal or quaternary nitrogen ie. ammonium, mono-, di- or IriaU ylar nomum, pyridinium etc
• the present invention further provides a protein detector, which comprises a compound including a symmetrical skeletal structure of the general formula
• x may represent any integer, and in which the phenyl rings may be substituted, in solution in water or a water containing solvent mixture, at concentrations from 1 x 10 "9 to 1
• the present invention further provides a method for measuring the total dissolved protein content of a fluid sample, which method includes the steps of:
• x may represent any integer
• phenyl rings may be substituted, in solution in water or a water containing solvent mixture, at concentrations from 1 x 10 "1 ° to 1 moles per litre.
• step (b) admixing the solution of step (a) with a test fluid sample
• the present invention further provides a method for detecting and / or quantifying proteins separated electrophoretically in a supporting matrix, for example polyacrylamide,
• agrose or starch either in the presence or absence of sodium dodecylsulfate (SDS), that
• aqueous / organic / acid mixture comprising aqueous methanol and acetic acid, wherein the matrix is subsequently stained with a photoluminescent compound including a symmetrical skeletal structure of the general formula;
• x may represent any integer
• phenyl rings may be substituted, in solution in 10% aqueous methanol or aqueous acetic acid, at a concentration of from 1 x 10 "10 to 1 moles per litre, and destained to visualise bands.
• the fluorescence is also at a high wavelength and is not masked by any diffuse lower wavelength organic fluorescence.
• 2,3,3-trimethyl-l-(propan-3-sulfonyl)indolenine was prepared using the literature method of E. Havmga et al. in Synthetic Metals 69 (1995) pages 581-582 by heating 2,3,3-trimethylindolenine in excess 1,3-propanesultone and toluene, using a Dean and Stark apparatus. Upon cooling the excess solvent was decanted off and the product washed repeatedly with petroleum ether to yield a red oil. Crystals of 2,3,3 -trimethyl- l-(propan-3-sulfonyl)indolenine formed from the oil upon standing for several weeks and the single crystal x-ray structure is shown in Figure 4.

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Immunology (AREA)
• Biomedical Technology (AREA)
• Urology & Nephrology (AREA)
• Molecular Biology (AREA)
• Hematology (AREA)
• Medicinal Chemistry (AREA)
• Pathology (AREA)
• Cell Biology (AREA)
• Biotechnology (AREA)
• Food Science & Technology (AREA)
• Organic Chemistry (AREA)
• Physics & Mathematics (AREA)
• Analytical Chemistry (AREA)
• Biochemistry (AREA)
• General Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Microbiology (AREA)
• Materials Engineering (AREA)
• Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
• Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
• Led Device Packages (AREA)
• Glass Compositions (AREA)
• Electroluminescent Light Sources (AREA)
• Plural Heterocyclic Compounds (AREA)
• Indole Compounds (AREA)
• Investigating Or Analysing Biological Materials (AREA)
• Luminescent Compositions (AREA)

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• 2003
  • 2003-10-03 GB GBGB0323171.9A patent/GB0323171D0/en not_active Ceased
• 2004
  • 2004-09-30 ES ES04768710T patent/ES2302544T3/es not_active Expired - Lifetime
  • 2004-09-30 KR KR1020067008571A patent/KR20070009972A/ko not_active Withdrawn
  • 2004-09-30 US US10/574,166 patent/US20060292658A1/en not_active Abandoned
  • 2004-09-30 JP JP2006530575A patent/JP2007507576A/ja active Pending
  • 2004-09-30 EP EP04768710A patent/EP1668091B1/en not_active Expired - Lifetime
  • 2004-09-30 CN CNA2004800288704A patent/CN1863889A/zh active Pending
  • 2004-09-30 WO PCT/GB2004/004167 patent/WO2005033245A1/en not_active Ceased
  • 2004-09-30 AT AT04768710T patent/ATE390469T1/de not_active IP Right Cessation
  • 2004-09-30 DE DE602004012762T patent/DE602004012762D1/de not_active Expired - Lifetime

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