COMMUNICATION
(1 of 7)Droplet manipulation on a surface is a crucial phenomenon in a broad spectrum of disciplines from energy and water systems, [1][2][3][4][5][6][7][8][9][10] chemical microreactors, [11,12] droplet-based microfluidics [13][14][15][16] to biosciences. [17][18][19] In these embodiments, droplet manipulation is required for transporting, guiding, removing, splitting, merging, or trapping of droplets for intended physical and chemical interactions. A variety of approaches have been developed for controlled droplet manipulation including surface