Figure 5.

Graphene/MoS₂ nanohybrid in biosensors: (a) TEM image of the MoS₂ nanoparticles (NPs) encapsulated by GO, cyclic voltammogram of Mb modified GO@MoS₂, and its selective and sensitive H₂O₂ sensing performance by amperometric I-T measurement (reproduced with permission from [30], published by Elsevier, 2017), (b) schematic diagram of the fluorescent epithelial cell adhesion molecule (EpCAM) biosensor based on the graphene QD and MoS₂ nanosheet, and its fluorescent sensing of EpCAM depending on the concentration of EpCAM (reproduced with permission from [76], published by Elsevier, 2017), (c) schematic images of W-MoS₂ nanosheet decorated with graphene micro-flowers (GMFs) fabrication and its surface-enhanced Raman spectroscopy (SERS)-enhancing effects for target detection (reproduced with permission from [77], published by Elsevier, 2020).