Research Article

Chitosan-Coated Solid Lipid Nano-Encapsulation Improves the Therapeutic Antiairway Inflammation Effect of Berberine against COPD in Cigarette Smoke-Exposed Rats

Figure 1

Physiochemical feature of Ber-loaded SLN-chitosan nanoparticles. (a) The chemical structure of berberine. (b) Nanoparticle size distribution and zeta potential. (c) TEM image of prepared Ber-loaded SLN-chitosan nanoparticles.