Patent ID: 8309345
Filing Date: 2012-11-13
Classification: C12Q,G01N

Abstract:
1. A method for detecting an antigen using an electrochemical measurement device comprising a working electrode, a reference electrode, and a counter electrode, the method comprising steps of: (A) contacting an electrically conductive support with a sample solution, the support including a mixture of an antibody specifically reacting with the antigen and a multi-copper oxidase CueO; (B) measuring a current between the working electrode and the counter electrode by way of a potentiostat method, the potentiostat method comprising the steps of: (C) determining that the antigen is contained in the sample solution if the following inequality is satisfied: the current measured in the step >=1.5×(blank value) where the blank value is a current between the working electrode and the counter electrode measured by way of the potentiostat method under the condition that the antigen is not contained in the sample solution.