EP 1093584 A2 20010425 - ELECTROCHEMICAL BASED ASSAY PROCESSES, INSTRUMENT AND LABELS
Title (en)
ELECTROCHEMICAL BASED ASSAY PROCESSES, INSTRUMENT AND LABELS
Title (de)
PRÜFVERFAHREN, VORRICHTUNG UND MARKIERUNGSMITTEL BASIEREND AUF ELEKTROCHEMIE
Title (fr)
PROCEDES, INSTRUMENTS ET MARQUEURS RELATIFS A DES ESSAIS ELECTROCHIMIQUES
Publication
Application
Priority
- EP 99926483 A 19990531
- EP 9903756 W 19990531
- EP 98430015 A 19980603
Abstract (en)
[origin: EP0962773A1] A method for quantitating or detecting an analyte using an electrochemical reaction, comprising a material in contact with an electrolyte in a cell or chamber but not in electronic contact with an external electronic circuit, at least some of said material having at least its surface conducting or semi-conducting, and applying a voltage gradient across at least a portion of said material, the size of said material, the conductivity of said electrolyte and/or reactant liquid and the voltage gradient being such that not only are anodic and cathodic faces established in respect of at least some of the conducting or semi-conducting material, rendering said material bipolar, the electropotentials so generated are such that said electrochemical reaction takes place on at least a portion of the surfaces of said material resulting in the production of a detectable signal or detectable material. The said bipolar material which, advantageously, are spherical or fibres, may comprise solid conducting or semi-conducting material or cores of non-conducting material with coatings of conducting or non-conducting material thereon. The material, which are preferably in suspension, may also be bound or captured directly or indirectly onto a surface or filter matrix. The said surface or filter matrix if conducting is not acting as an electrode to carry out electrochemistry. The detection of the electrochemically-generated signal or material is related to the quantity or presence of said analyte. <IMAGE>
IPC 1-7
IPC 8 full level
G01N 33/543 (2006.01); G01N 33/553 (2006.01)
CPC (source: EP)
G01N 33/5438 (2013.01); G01N 33/553 (2013.01)
Citation (search report)
See references of WO 9963347A2
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI MC NL PT SE
DOCDB simple family (publication)
EP 0962773 A1 19991208; AU 4372199 A 19991220; EP 1093584 A2 20010425; WO 9963347 A2 19991209; WO 9963347 A3 20000406
DOCDB simple family (application)
EP 98430015 A 19980603; AU 4372199 A 19990531; EP 9903756 W 19990531; EP 99926483 A 19990531