The present application relates to the technical field of
Congo red derivative photocatalytic probe application, and particularly relates to a
Congo red derivative photocatalytic probe, a preparation method and a use method thereof, comprising a compound I, the compound I is selected from at least one of the
Congo red derivative photocatalytic probes, and the Congo red derivative photocatalytic probe comprises two arene, the arene represents an aromatic heterocycle, and the aromatic heterocycle is selected from one of a
benzene ring,
furan,
thiophene and a
naphthalene ring. The Congo red derivative photocatalytic probe provided by the present application can specifically
label amyloid plaques in AD
brain tissue slices, the binding affinity is significantly improved (Kd of Aβ 1‑40 The Congo red derivative photocatalytic probe can reveal the molecular heterogeneity of
amyloid deposition and the key regulatory role of the mitochondrial
autophagy-
lysosome axis, provide a new tool for AD
pathological mechanism research, support proteomic analysis and
pathological mechanism analysis across brain regions (
hippocampus / cortex), and protect the molecular structure and application in the research of neurodegenerative diseases.