Ex parte SCHULTZ - Page 4




          Appeal No. 98-2792                                                          
          Application 08/516,257                                                      



                    As explained in the last paragraph on page 13 of the              
          specification, the analog-analyte binds with a receptor to                  
          form an analog-analyte-receptor complex.  When the analyte                  
          molecules are introduced into the processing chamber by                     
          diffusion through the semi-permeable membrane (8), they may                 
          then bind with a receptor to form an analyte-receptor complex.              
          Apparently the receptor material has a higher affinity for the              
          analyte molecule                                                            





          than for the analog-analyte molecule, because the formation of              
          an                                                                          
          analyte-receptor complex frees a previously bound analog-                   
          analyte molecule.  The analog-analyte molecules are labeled by              
          covalent coupling with an appropriate dye (specification, page              
          14) so that they fluoresce in response to excitation energy                 
          sent into the processing chamber (i.e., via the optical fiber               
          (30)).  The degree of interaction of the analyte with the                   
          receptor material in the processing chamber of the sensor is                

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Last modified: November 3, 2007