A gold sol particle immunoassay for measurement of von willebrand factor using the CA-6000 analyzer

Document Type



Master of Science (MS)


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Medical Laboratory Science

First Advisor's Name

Beverly Warden

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Patrick Shen

Third Advisor's Name

Steve Milier

Date of Defense



The diagnosis of Von Willebrand's disease (VWD) may sometimes be difficult because of the variability of the results obtained over time in individuals. Moreover, blood group, age, pregnancy and inflammatory stimuli influence the level of Von Willebrand Factor (VWF). The purpose of this thesis was to screen and characterize antibodies to Von Willebrand factor and to evaluate the most promising ones in a gold- Sol assay for VWF on the CA-6000 analyzer. Seven different lots of Anti-VWF antibodies, 3 polyclonal and 4 monoclonal Ab's were screened and evaluated. Two of these antibodies (Sunol R01358 and MAVWF-AP) were selected for preparation of a Gold coated antibody solution. The preliminary testing of these gold coated antibodies on CA-6000 Analyzer showed no immunoreactivity toward VWF for both individual and pooled plasma (from normal healthy donors). Although measurement of VWF for normal plasma with this technique was not demonstrated, these data will be valuable for future work on the design of sensitive and accurate automated sol Gold Immunoassays for the diagnosis of VWD.



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