Cortisol-3-BSA Antigen

From Antibodies.com, this liquid antigen-BSA conjugate is directed against the Cortisol-3 target. It is supplied as a liquid preparation of BSA-conjugated antigen in 10 mM Phosphate Buffered Saline (pH 7.4), with a stated purity of >90% by SDS-PAGE. The product is validated for Lateral Flow applications and is cited in 1 publication. It is shipped at 4°C; for short-term storage (<2 weeks) keep at 4°C, and for long-term storage aliquot and store at -20°C, avoiding freeze/thaw cycles. The product is backed by a 100% quality guarantee.

Source material describes a lateral flow immunoassay (LFIA) for the quantitative measurement of cortisol in human saliva, which uses a photoluminescent film beneath a nitrocellulose membrane combined with smartphone-based photoluminescence detection and machine learning-based image analysis. The reported limit of detection is approximately 139 pg/mL, with a strong correlation (r = 0.935) to ELISA measurements and an average difference of 18.12% between the LFIA and ELISA results across saliva samples obtained from 14 volunteers.