Figure 2From: A promising gene delivery system developed from PEGylated MoS2 nanosheets for gene therapyCharacterization of different layers of MoS 2 nanosheets. (a) Hydrodynamic sizes of MoS2, PEGylated MoS2, and MoS2-PEG-PEI. (b) Zeta potentials of MoS2 nanosheets before and after two layers of polymer coatings measured in water.Back to article page