Fig. 7From: Complementation of ELISA and an Interdigitated Electrode Surface in Gold Nanoparticle Functionalization for Effective Detection of Human Blood Clotting Defectsa Limit of detection of FIX-conjugated GNP on IDE sensing surface. FIX was titrated from 25 to 400 pM. The limit of detection was found to be 25 pM. b Detection of FIX in human serum on the IDE sensing surface. Human serum was diluted from 1:80 to 1:1280. FIX was detected in human serum diluted 1:1280Back to article page