Fig. 2: Effect of droplet volume on the electrical characteristics of droplet power sources.
From: A microscale soft ionic power source modulates neuronal network activity
a, Initial (t = 0) VOC and ISC values. Droplet volumes below 100 nl were calculated on the basis of diameters measured by microscopy. b, Calculated power densities and total released charge of single power units with various droplet volumes. The power source volume and length were five times that of a single-droplet volume and diameter. c, Normalized VOC, ISC and total released charge of power units formed into droplet networks in series and/or in parallel. The volume of each droplet was 1.84 nl. 2 × 2 stands for two sets of two paralleled power units in series. Inset: schematics showing the power units that were formed into continuous droplet networks during measurements. The normalization was with respect to the outputs of a single unit. Data are mean values ± s.d. (n = 5).
