Fig. 2: Modulus adjustment and electrical characteristic of the MDME. | npj Flexible Electronics

Fig. 2: Modulus adjustment and electrical characteristic of the MDME.

From: Modulus-adjustable and mechanically adaptive dry microneedle electrodes for personalized electrophysiological recording

Fig. 2

a Two ways of regulating the Young’s modulus of the SMP: compound ratios and anhydrous ethanol immersion. b Distribution of the effect of different components and temperature on the elastic modulus of MDME. c Distribution of the effect of different treatment times and temperatures on the elastic modulus of MDME. d Impedance spectra of commercial Ag/AgCl gel electrode, Cu electrode, and MDME on skin. e The corresponding impedances are at 1, 10, 100, and 1000 Hz. f Variations of the resistance of MDME with the strains. g Resistance variation of MDME in repeated stretching-releasing cycles. h Resistance variation of MDME in the 400th-430th stretching-releasing cycles. i Variations of the resistance of different components MDME in repeated stretching-releasing cycles.

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