[1] | Quantitative lateral flow immunoassay for total prostate specific antigen in serum / I. P. Andreeva, V. G. Grigorenko, A. M. Egorov, A. P. Osipov // Analytical Letters. — 2016. — Vol. 49, no. 4. — P. 579–588. A simple method for the rapid determination of prostate-specific antigen (PSA) in serum is reported using a lateral flow immunoassay with gold nanoparticles as the label. The method uses the intensity of colored test lines to determine PSA from 0.3 to 30 ng/ml. The limit of detection was 0.3 ng/ml and the coefficient of variation was less than 10%. The analysis time was approximately twenty minutes. The novel method showed good correlation with enzyme linked immunosorbent assay (ELISA) measurements of prostate-specific antigen concentration in human serum with a linear regression coefficient of 0.985. The developed system was stable for at least twelve months when stored from +4 to 30oC and has potential application for clinical practice. [ DOI ] |