The use of manganese-doped mesoporous silica nanopowder for targeted drug delivery

Abstract

The researched manganese-doped mesoporous silica nanopowder (SiO 2 -MnO 2 NP) was produced using evaporation caused by a pulsed electron beam in a vacuum. The synthesized material demonstrated high porosity, amorphous structure and magnetic properties increased with the addition of dopant. The evaluation of the sedimentation stability of NP suspensions showed the need for the additional stabilization. It was established that increasing the sonication time, as the way to increase stability, leads to changes in the structure of the NP. PEG stabilized suspensions showed the highest stability. Experimental results indicated that for different drugs individual methods of loading and release are required. Drug loaded NP demonstrated a high drug loading capacity of 0.09 mg Amoxicillin per mg NP, 0.075 mg Doxorubicin per mg NP that is five times higher than loading capacity of chemically synthesized NP. © Published under licence by IOP Publishing Ltd.