Figure 1
(a) Micro papillae on the surface of lotus leaves (Liu and Jiang, 2011); (b) micro-nano structures on the surface of a rice leaf (Lu et al., 2008); and (c) micro grooves on the mouth edge surface of pitcher plant (Chen et al., 2016)
(a) Micro papillae on the surface of lotus leaves (Liu and Jiang, 2011); (b) micro-nano structures on the surface of a rice leaf (Lu et al., 2008); and (c) micro grooves on the mouth edge surface of pitcher plant (Chen et al., 2016)