Novel hybrid biomaterial of gelatin-siloxane nanoparticles (GS NPs), with positive
surface potential and lower cytotoxicity, was synthesized through a 2-step sol-gel process. The
pDNA-GS NPs complex was formulated with high encapsulation efficiency, and exhibited and
efficient transfection in vitro. We thus envision that the GS NPs material could serve as non-viral
gene vectors for gene therapy.