Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Process and device for carrying out fluorescence immunoassays










Image Number 3 for United States Patent #6440748.

The invention concerns a device and a method for carrying out fluorescence immunoassays, wherein from at least one light source light is directed onto a surface at one end of a light waveguide and with the light coupled into the light waveguide by evanescent field excitation at the surface of the light waveguide fluorescence of at least one labelling substance bound to a chemical or biochemical partner of a general receptor-ligand system is excited. The solution according to the invention is here to provide a possible way of carrying out fluorescence immunoassays with high accuracy of measurement at low cost and within a short time. To achieve this object, the fluorescent light is decoupled from the light waveguide and directed via an optical system onto an optical detector with which the intensity of the fluorescent light is measured. Here the light waveguide is held in a measuring chamber formed in a piston of a piston and cylinder unit, and the measuring chamber is connected to the interior of the cylinder by an inlet formed in the piston.








 
 
  Recently Added Patents
Data feed management
System and methods for facilitating and documenting user thinking and learning using enhanced interactive constructs
Systems and methods for generating customized user interfaces
Methods for processing 2Nx2N block with N being positive integer greater than four under intra-prediction mode and related processing circuits thereof
Method and apparatus for accessing and downloading information from the internet
Method and system for an integrated host PCI I/O bridge and dual port gigabit ethernet controller
Self-service channel marketplace
  Randomly Featured Patents
Sample rate converter having a zero-phase filter
Semiconductor device
Cyclic demand steam supply system
Treatment of material by ultra-violet irradiation
Apparatus and method for moving a cover
Winding arrangement for planar transformer and inductor
Portion of a labial pad
Mobile radio set for operation in a TDMA system
Simultaneous voice/data answering machine
Fluid pressure feeding apparatus