Fig. 2
From: mRNA nanodelivery systems: targeting strategies and administration routes

A Schematic representation of the IVT-mRNA and key structural elements. Reproduced with permission [26]. B 5′ cap structure of mRNA. Circles indicate the methyl group. Cap-1 and Cap-2 structures are expressed at N1 and N2 position, respectively. Reproduced with permission [26]. C Chemically modified nucleosides structures. Reproduced with permission [30]