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Cortisol is a steroidal hormone and an important stress marker. Free serum cortisol concentration has been identified to correlate well with free salivary cortisol. In this present work an electrochemical immunosensor was developed to determine cortisol concentration within the physiological concentration range found in human saliva. The immunosensor is based on a direct competitive enzyme linked...
Two new protein conjugates were prepared and studied to develop and compare two (direct and indirect) competitive enzyme-linked immunosorbent assay (ELISA) formats for the determination of cortisol in human saliva. Toward this goal, ovalbumin was conjugated to cortisol and used for developing an indirect competitive ELISA, while alkaline phosphatase was coupled with the same analyte for a direct competitive...
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