Figure 1
From: Direct Visualization of Perm-Selective Ion Transportation

(a) Schematic diagrams of micro/nanofluidic platform for the direct visualization of perm-selective ion transportation using an ionic plasma generation. Experimental steps were (i) micro bubble formation inside a microchannel, (ii) plasma generation in the microchannel and (iii) plasma penetration through a nanojunction. (b) Fabricated micro/nanofluidic device.