BR0209357A - Dispositivo de leitura eletroótico com canal de referência - Google Patents

Dispositivo de leitura eletroótico com canal de referência

Info

Publication number
BR0209357A
BR0209357A BR0209357-0A BR0209357A BR0209357A BR 0209357 A BR0209357 A BR 0209357A BR 0209357 A BR0209357 A BR 0209357A BR 0209357 A BR0209357 A BR 0209357A
Authority
BR
Brazil
Prior art keywords
analyte
indicator
elements
indicator element
reading device
Prior art date
Application number
BR0209357-0A
Other languages
English (en)
Inventor
Arthur E Colvin Jr
Robert W Lynn
Original Assignee
Sensors For Med & Science Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sensors For Med & Science Inc filed Critical Sensors For Med & Science Inc
Publication of BR0209357A publication Critical patent/BR0209357A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N2021/6432—Quenching
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7769—Measurement method of reaction-produced change in sensor
    • G01N2021/7786—Fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7793—Sensor comprising plural indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7796—Special mountings, packaging of indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/14—Heterocyclic carbon compound [i.e., O, S, N, Se, Te, as only ring hetero atom]
    • Y10T436/142222—Hetero-O [e.g., ascorbic acid, etc.]
    • Y10T436/143333—Saccharide [e.g., DNA, etc.]
    • Y10T436/144444—Glucose

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

"DISPOSITIVO DE LEITURA ELETROóTICO COM CANAL DE REFERêNCIA". A presente invenção refere-se a um dispositivo de leitura eletro-ótico para detectar a presença e concentração de um analito em um meio líquido ou gasoso que inclui um par de elementos indicadores posicionados para receber a radiação de uma fonte de radiação e transmite a radiação para um par de elementos fotossensíveis. Cada um dos elementos indicadores contém moléculas indicadoras tendo uma característica ótica responsiva à presença de um analito; entretanto, um dos elementos indicadores é coberto por uma câmara impermeável ao analito que torna o elemento indicador insensível à presença do analito no meio fora da câmara, de modo que ele pode ser usado como uma referência para cancelar as variáveis ambientais e sistêmicas que afetam ambos os elementos indicadores. A câmara preferivelmente mantém um fluido que contém o analito em contato com o elemento indicador de referência de modo que os elementos indicadores operam sob condições nominalmente idênticas. O elemento indicador usado para medir o analito no meio externo preferivelmente é também coberto, mas em uma maneira que produz o contato direto entre o analito e o elemento indicador.
BR0209357-0A 2001-05-04 2002-05-03 Dispositivo de leitura eletroótico com canal de referência BR0209357A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28849801P 2001-05-04 2001-05-04
PCT/US2002/013734 WO2002090951A1 (en) 2001-05-04 2002-05-03 Electro-optical sensing device with reference channel

Publications (1)

Publication Number Publication Date
BR0209357A true BR0209357A (pt) 2004-06-08

Family

ID=23107373

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0209357-0A BR0209357A (pt) 2001-05-04 2002-05-03 Dispositivo de leitura eletroótico com canal de referência

Country Status (10)

Country Link
US (3) US7135342B2 (pt)
EP (1) EP1386140A1 (pt)
JP (1) JP2004529352A (pt)
CN (1) CN100520372C (pt)
AU (1) AU2002256413B2 (pt)
BR (1) BR0209357A (pt)
CA (1) CA2445127C (pt)
MX (1) MXPA03010064A (pt)
TW (1) TWI252311B (pt)
WO (1) WO2002090951A1 (pt)

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CA2445127C (en) 2011-12-13
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US7135342B2 (en) 2006-11-14
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US20020164813A1 (en) 2002-11-07
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