The invention discloses an
aptamer magnetic mesoporous
fluorescence joint detection method for cyclosporine A and a
prognosis biomarker sIL-2R alpha, relates to the technical field of compound detection, and provides a novel
fluorescence sensing platform for simultaneously detecting CsA and sIL-2R alpha based on
nucleic acid aptamers and magnetic covalent organic frameworks corresponding to two target objects. Wherein the two aptamers both have negative charges, the MCOFs are rich in
aldehyde groups and have positive charges, so that the aptamers can be modified on the surfaces of the MCOFs, meanwhile, the COFs material has a regular pore channel, fluorescent
signal molecules with a certain size can be embedded in the pore channel, and two target objects are added into a constructed fluorescent sensing platform, so that the detection sensitivity of the COFs material is improved, and the detection sensitivity of the COFs material is improved. According to the present invention, the
aptamer can specifically bind to the target object so as to release the
fluorescence signal molecule in the pore channel to the supernatant, and the MCOF-2 has good
magnetism so as to simply separate the material from the supernatant, such that the two target objects can be simultaneously quantitatively detected through the change of the fluorescence value of the supernatant;