The present invention provides an inhalable bionic nanomaterial for treating
bacterial pneumonia of the lungs, and a preparation method and application thereof, belonging to the technical field of
drug preparation. Mesoporous polydopamine nanoparticles A are prepared by a one-pot synthesis method using block polyether and 3,3',5,5'-tetramethylbenzidine as templates;
levofloxacin is added to A, stirred and centrifuged, and freeze-dried to obtain nanoparticles B; RAW264.7 cells are resuspended after
centrifugation, homogenized and centrifuged again to collect the supernatant, and the supernatant centrifugal
precipitation is the prepared macrophage membrane C; the configured B solution and C are mixed, and a bionic nanomaterial D wrapped in a macrophage membrane
coating is prepared by a direct
extrusion method. The inhalable bionic nanomaterial prepared by the present invention can cross the complex
lung barrier to target the inflammatory site to respond to the release of drugs, and can remove reactive
oxygen to relieve
lung inflammation, which is of great significance for the treatment of
lung infection and has promotion and application value.