Fig. 1. Schematic of THz radiation system

Fig. 2. Power diagrams of THz wave. (a) 88 mW; (b) 3 mW

Fig. 3. Test results of neuronal membrane potential with different radiation time (the first row is control group, and the second row is experimental group). (a) 5 min; (b) 15 min; (c) 25 min; (d) distribution of relative fluorescence intensity for three repeated experiments

Fig. 4. Test results of intracellular calcium ion concentration after irradiation for different time (the first row is control group, and the second row is experimental group). (a) 5 min; (b) 15 min; (c) 25 min; (d) distribution of relative fluorescence intensity of calcium ion concentration in three repeated experiments

Fig. 5. Test results of intracellular sodium ion concentration after irradiation for different time (the first row is control group, and the second row is experimental group). (a) 5 min; (b) 15 min; (c) 25 min; (d) distribution of relative fluorescence intensity of sodium ion concentration in three repeated experiments

Fig. 6. Test results of intracellular potassium ion concentration after irradiation for different time (the first row is control group, and the second row is experimental group). (a) 5 min; (b) 15 min; (c) 25 min; (d) distribution of relative fluorescence intensity of potassium ion concentration in three repeated experiments

Table 1. Significance of difference between control group and experimental group (No. 1,No. 2, and No. 3 represent the first, second, and third experiments)