Nanodiamond Vectors Functionalized with Polyethylenimine for siRNA Delivery

The enormous therapeutic potential of RNA interference (RNAi) has long been recognized. While efficient small interfering RNA (siRNA) delivery vectors exist, many sacrifice biocompatibility, which can challenge their applicability as a therapeutic agent. Nanodiamonds (NDs) represent promising strategies for efficient siRNA delivery given the multitude of beneficial properties integrated into one platform that include uniform particle sizes, material scalability, the ability to carry nearly any type of therapeutic, and preserved biocompatibility, among others. Here we present a broadly applicable ND delivery platform that demonstrates biocompatible siRNA delivery with enhanced efficacy in media, signifying the translational potential of this approach.