Nothing Special   »   [go: up one dir, main page]

Del Pozo et al., 2005 - Google Patents

Electrochemical DNA sensing using osmium complexes as hybridization indicators

Del Pozo et al., 2005

Document ID
16446585732063322723
Author
Del Pozo M
Alonso C
Pariente F
Lorenzo E
Publication year
Publication venue
Biosensors and Bioelectronics

External Links

Snippet

A surface-based method for the study of the interactions of DNA with redox-active osmium complexes is described. The study was carried out using gold electrodes modified with DNA by adsorption and [Os (bpy) 3] 3+/2+(bpy= 2, 2′-bipyridyl) or [Os (phen) 3] 3+/2+(phen= 1 …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or micro-organisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or micro-organisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
    • C12Q1/6813—Hybridisation assays
    • C12Q1/6816—Hybridisation assays characterised by the means of detection
    • C12Q1/6825—Nucleic acid detection involving sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/327—Biochemical electrodes electrical and mechanical details of in vitro measurements
    • G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
    • 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
    • G01N33/53—Immunoassay; Biospecific binding assay
    • G01N33/543—Immunoassay; Biospecific binding assay with an insoluble carrier for immobilising immunochemicals
    • G01N33/54366—Apparatus specially adapted for solid-phase testing
    • G01N33/54373—Apparatus specially adapted for solid-phase testing involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/327—Biochemical electrodes electrical and mechanical details of in vitro measurements
    • G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
    • G01N27/3276—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction being a hybridisation with immobilised receptors
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or micro-organisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/001—Enzyme electrodes
    • C12Q1/005—Enzyme electrodes involving specific analytes or enzymes
    • C12Q1/006—Enzyme electrodes involving specific analytes or enzymes for glucose
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material

Similar Documents

Publication Publication Date Title
Peng et al. Electrochemical detection of DNA hybridization amplified by nanoparticles
Ansari et al. Sol–gel derived nanoporous cerium oxide film for application to cholesterol biosensor
Wong et al. Charge transfer through DNA: A selective electrochemical DNA biosensor
Arumugam et al. Wafer-scale fabrication of patterned carbon nanofiber nanoelectrode arrays: a route for development of multiplexed, ultrasensitive disposable biosensors
Du et al. Electrochemical DNA biosensor for the detection of DNA hybridization with the amplification of Au nanoparticles and CdS nanoparticles
Del Pozo et al. Electrochemical DNA sensing using osmium complexes as hybridization indicators
Ding et al. Hybridization biosensor using 2, 9-dimethyl-1, 10-phenantroline cobalt as electrochemical indicator for detection of hepatitis B virus DNA
Ahangar et al. Nanoporous gold electrode as a platform for the construction of an electrochemical DNA hybridization biosensor
Zhang et al. Conductive architecture of Fe2O3 microspheres/self-doped polyaniline nanofibers on carbon ionic liquid electrode for impedance sensing of DNA hybridization
Bizid et al. Direct Electrochemical DNA Sensor based on a new redox oligomer modified with ferrocene and carboxylic acid: Application to the detection of Mycobacterium tuberculosis mutant strain
Nguyet et al. Highly sensitive DNA sensors based on cerium oxide nanorods
Veloso et al. Electrochemical biosensors for medical applications
Pandey et al. Biosensors: fundamentals and applications
Muti et al. Single-walled carbon nanotubes-polymer modified graphite electrodes for DNA hybridization
quan Zhong et al. An electrochemical Hg2+ sensor based on signal amplification strategy of target recycling
Silva et al. Dual signaling DNA electrochemistry: an approach to understand DNA interfaces
Su et al. Effective covalent immobilization of quinone and aptamer onto a gold electrode via thiol addition for sensitive and selective protein biosensing
Pividori et al. Classical dot–blot format implemented as an amperometric hybridisation genosensor
Fatima et al. Biosensors
Zhan et al. A subfemtomolar electrochemical DNA biosensor realized by in-situ grafting of gold nanoparticle/neutral red on the terminal of hairpin probe as the signal tag
Duan et al. Enhancing the sensitivity and stability of electrochemical aptamer-based sensors by AuNPs@ MXene nanocomposite for continuous monitoring of biomarkers
Gao et al. Highly sensitive impedimetric sensing of DNA hybridization based on the target DNA-induced displacement of gold nanoparticles attached to ssDNA probe
García-Mendiola et al. Nanostructured rough gold electrodes as platforms to enhance the sensitivity of electrochemical genosensors
Lupu et al. Hydrogen peroxide detection nanosensor array for biosensor development
Evtugyn et al. Molecularly imprinted polymerized methylene green as a platform for electrochemical sensing of aptamer–thrombin interactions