Synthesis and characterization of biofunctional quaternized xylan-Fe2O3 core/shell nanocomposites and modification with polylysine and folic acid

The aims of this study are to prepare quaternized xylan-Fe2O3 (QX-Fe2O3) core/shell nanocomposites and explore their potential application in the biomedical fields. γ-Fe2O3 nanoparticles synthesized by a facile solvothermal process are coated with QX via reverse microemulsion method and further modified by polylysine (PLL) and folic acid (FA) to prepare PLL-QX-Fe2O3 and FA-QX-Fe2O3 nanoparticles. An obvious strong absorption of γ-Fe2O3 at 580...