ig. 7c shows the resistivity responses of RGO@CNC/NR nanocomposites under the stimuli of different organic solvents.The Rrel values for chloroform, dimethyl formamide and acetoneare 2.05 × 104%, 50% and 220%, respectively. This result suggests that the RGO@CNC/NR nanocomposites have remarkable liquidresponse sensitivity for toluene and chloroform. Meanwhile, the solvent response time for chloroform is much longer than that of toluene. The resistivity changes are attributed to the different solubility parameter between the NR and the used organic solvents. The solubility parameter of NR, toluene, chloroform, dimethyl formam-ide and acetone are 8.5, 8.9, 9.6, 9.9 and 12.1, respectively. Because of the similarity of toluene with that of NR, toluene can swell the RGO@CNC network and easily disconnect the RGO conductive paths. Thus, toluene showed the greatest liquid sensing behavior