Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals – Carrier is inorganic
Reexamination Certificate
2005-10-04
2010-06-15
Metzmaier, Daniel S (Department: 1796)
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
Carrier is inorganic
C436S805000, C516S097000, C530S391500, C427S216000, C435S006120, C977S704000, C977S722000, C977S773000, C977S810000, C977S920000, C977S924000
Reexamination Certificate
active
07736910
ABSTRACT:
The present invention comprises novel “one-step” methods for the production of gold sol and gold sol conjugates. The methods disclosed herein produce gold sol and colloidal gold conjugates with product with yields on the order of about 20 ODs. Since current methods in the art yield conjugates at concentrations on the order of about 2 ODs, the present invention represents an approximately 10-fold increase in production over conventional methods. The novel method provided herein also does not result in the production of undesired aggregate by-products that, in conventional methods, must be removed via centrifugation, filtration or other means. The new method is therefore less labor intensive and requires less time to complete than standard methods in the art for synthesizing pure colloidal gold conjugates.
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Calypte Biomedical Corporation
Farrell Kevin M.
Metzmaier Daniel S
Pierce Atwood LLP
Wilson David J.
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