Clinkenbeard, Kenneth D.Mani, Rinosh Joshua2014-04-162014-04-162006-07-01http://hdl.handle.net/20.500.14446/9821Using the bi-cell surface plasmon resonance instrument, we were able to detect thrombin in the concentration range of 500 femtomoles to 2 picomoles with thrombin aptamer as the capture probe. The lowest limit of detection was 250 femtomoles. The affinity of the aptamer for prothrombin was also investigated, which was detected at 2 picomoles. Using serum samples, 1 picomole of thrombin was detected. We proved that an aptamer could be used as a capture ligand in bi-cell SPR instrument. This model could be used in a clinical setting for the real time detection of diagnostically relevant biomolecules.application/pdfCopyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material.text