A lysozyme corona complex for the controlled pharmacokinetic release of probucol from mesoporous silica particles.

Mesoporous silica particles (MSPs) enhance the release kinetics of poorly soluble compound probucol (PB) under the influence of a pore-blocking protein corona, prepared with lysozyme protein adsorption. In vivo oral administration experiments show a prolongation in the time to reach maximum systemic concentration and half-life of PB released from the lysozyme-MSP complex in comparison to the MSP alone. Specific hard protein corona complexes can act as functional diffusion barriers for the controlled release of drugs from MSP based formulations.