Fig. 1. [in Chinese]

Fig. 2. Schematic of graphene-based refractive index sensing system

Fig. 3. Structural schematics of microfluidic chip. (a) Three views of chip template; (b) template of chip; (c) finished product of chip

Fig. 4. (a) Real time measurement results of refractive index of sodium chloride solution with different mass fractions; (b) relationship between voltage and refractive index of sodium chloride solution with different mass fractions

Fig. 5. Measurement results of refractive index in growth process of cells. (a) Ramos cells with cisplatin; (b) Jeko-1 cells with cisplatin; (c) Ramos cells with paclitaxel; (d) Jeko-1 cells with paclitaxel