The invention discloses a mesoporous polydopamine (MPDA)
nanoparticle which is loaded with a CeO2 nano
enzyme and
mitoxantrone mesylate (MitoQ) and is released by an intestinal tract, a preparation method of the mesoporous polydopamine (MPDA)
nanoparticle, and an application of the mesoporous polydopamine (MPDA)
nanoparticle, the preparation method of the mesoporous polydopamine (MPDA) nanoparticle, the preparation method of the mesoporous polydopamine (MPDA) nanoparticle and the preparation method of the mesoporous polydopamine (MPDA) nanoparticle, the preparation method of the mesoporous polydopamine (MPDA) nanoparticle, and the preparation method of the mesoporous polydopamine (MPDA) nanoparticle. The mesoporous polydopamine nanoparticle loaded with the CeO2 nano
enzyme and the
mitoxantrone mesylate and released by the intestinal tract comprises mesoporous polydopamine loaded with the CeO2 nano
enzyme and MitoQ, and an
enteric coating of
chitosan and
sodium alginate. The preparation method comprises the following steps: synthesizing mesoporous polydopamine by adopting a triblock
copolymer as a template, then loading a small molecular
drug MitoQ into MPDA through ultrasonic
waves, and loading CeO2 nano-enzyme on the surface of MPDA through
metal coordination to form MPDA (at) CeO2-MitoQ. And finally,
coating chitosan and
sodium alginate on the surfaces of the nanoparticles through
electrostatic adsorption to obtain the final MPDA (at) CeO2-MitoQ (at) SA / CS. The
drug-loaded nano-particles prepared by the preparation method disclosed by the invention have a good
treatment effect on
ulcerative colitis.