[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Chu et al., 2017 - Google Patents

Fluorescence ratiometric optical broad range pH sensor based on CdSe/ZnS quantum dots and O170 embedded in ethyl cellulose matrix

Chu et al., 2017

Document ID
1505817248923315710
Author
Chu C
Su C
Publication year
Publication venue
Journal of Lightwave Technology

External Links

Snippet

This paper presents a ratiometric optical broad range pH sensor that comprises an optical fiber coated at one end with CdSe/ZnS quantum dots (QDs) and Oxazine 170 perchlorate (O170) embedded in ethyl cellulose (EC) matrix. The feasibility of coating an optical fiber …
Continue reading at ieeexplore.ieee.org (other versions)

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 infra-red, visible or ultra-violet 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
    • G01N21/80—Indicating pH value
    • 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 infra-red, visible or ultra-violet 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"
    • G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
    • 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 infra-red, visible or ultra-violet 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
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • 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 infra-red, visible or ultra-violet 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
    • 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 the preceding groups
    • G01N33/48—Investigating or analysing materials by specific methods not covered by the preceding groups 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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated

Similar Documents

Publication Publication Date Title
Chu et al. Fluorescence ratiometric optical broad range pH sensor based on CdSe/ZnS quantum dots and O170 embedded in ethyl cellulose matrix
Klimant et al. Fiber‐optic oxygen microsensors, a new tool in aquatic biology
Jin et al. A quantum dot-based ratiometric pH sensor
Wang et al. Optical oxygen sensors move towards colorimetric determination
US6602716B1 (en) Method and device for referencing fluorescence intensity signals
Hao et al. Sensing using rare-earth-doped upconversion nanoparticles
Radunz et al. Simple self-referenced luminescent pH sensors based on upconversion nanocrystals and pH-sensitive fluorescent BODIPY dyes
Ali et al. Upconverting nanoparticle based optical sensor for carbon dioxide
Borisov et al. A novel planar optical sensor for simultaneous monitoring of oxygen, carbon dioxide, pH and temperature
EP1877772B1 (en) Photoluminescent silica-based sensors and methods of use
Stahl et al. Time‐resolved pH imaging in marine sediments with a luminescent planar optode
Chu et al. A new optical sensor for sensing oxygen based on phase shift detection
Hiruta et al. Highly durable double sol–gel layer ratiometric fluorescent pH optode based on the combination of two types of quantum dots and absorbing pH indicators
Christ et al. Chemical sensing and imaging based on photon upconverting nano-and microcrystals: a review
US10520435B2 (en) Optical sensor and sensing system for oxygen monitoring in fluids using molybdenum cluster phosphorescence
Chu et al. Optical fiber sensor for dual sensing of H2O2 and DO based on CdSe/ZnS QDs and Ru (dpp) 32+ embedded in EC matrix
US20210055229A1 (en) Optochemical sensor, sensor cap, use of the optochemical sensor, and method for producing an analyte-sensitive layer of an optochemical sensor
CN101724394A (en) Bioluminescent nanoparticle, temperature sensing film and preparation method thereof
Sun et al. Dual-emission quantum dots nanocomposites bearing an internal standard and visual detection for Hg 2+
Sun et al. White-light emissive upconversion nanoparticles for visual and colorimetric determination of the pesticide thiram
CN106318372B (en) A kind of fluorescent nano particle and its synthetic method, application
Chu et al. Ratiometric optical fiber dissolved oxygen sensor based on metalloporphyrin and CdSe quantum dots embedded in sol–gel matrix
Jorge et al. Applications of quantum dots in optical fiber luminescent oxygen sensors
Chu et al. Optical fiber carbon dioxide sensor based on colorimetric change of α-naphtholphthalein and CIS/ZnS quantum dots incorporated with a polymer matrix
Zhu et al. Upconversion-based dual-mode optical nanosensor for highly sensitive and colorimetric evaluation of heparin in serum