Determination of Total PSA Using Magnetic Beads and a Re‐usable Screen Printed Carbon Electrode Array |
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| Authors: | Julien Biscay María Begoña González García Agustín Costa García |
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| Institution: | Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, 33006 Oviedo, Spain |
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| Abstract: | A total PSA (tPSA) assay using magnetic beads (1 µm) and a re‐usable 8‐channel screen printed electrochemical array is here reported. The reaction scheme is based on a one step sandwich assay. The linear range obtained is comprised between 5 and 100 ng/mL of tPSA and have a limit of detection of 1.86 ng/mL. This methodology was validated, performing determination of tPSA in serum and the results were compared with a commercial ELISA kit. |
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| Keywords: | magnetic beads magnetic support screen printed carbon electrode array total PSA determination |
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