Patent ID: 8232061

Claim:
A method for examining an attachment or detachment of living cells, dead cells, cell-like particles or other surface accumulations on a surface using plasmon resonance, in which light with an angle of incidence spectrum appropriate for the plasmon resonance is directed onto a measurement region at the reflective inner side of a metal layer or semiconductor layer applied to a light-transmissive body, said layer bearing on the outer side of the surface that is brought into contact with the sample liquid containing the cells, comprising the steps of: irradiating individual measurement points of the measurement region with beams over the entire angle of incidence spectrum; continuously capturing, combining and evaluating the beams which have identical angles of incidence and are reflected from different points of the measurement region during a time period with a determination of the angle of light incidence with a lowest reflected light intensity and measuring an angle of incidence shift of an intensity minimum that occurs; and wherein the evaluating of light comprising the reflected beams includes registering different angles of incidence of two or more intensity minima that occur simultaneously within the time period, said registering reflecting a respective level of the surface accumulations.