International Science Community Association Research Journal of Chemical Sciences 2231-606X 9 2 2019 04 18 Dynamic behaviours of water droplet impacting antiwetting plant leaves 16 23 EN Raghavendra Narasimha 1 Department of Chemistry, Jabin Science College, Hubballi-580031, India C.M. Osuji 1 Department of Food Science and Technology, Federal University of Technology, P.M.B. 1526, Owerri, Imo State, Nigeria C.E. Ofoedu 2 Department of Food Science and Technology, Federal University of Technology, P.M.B. 1526, Owerri, Imo State, Nigeria M Ojukwu 3 Department of Food Science and Technology, Federal University of Technology, P.M.B. 1526, Owerri, Imo State, Nigeria Anand Khistariya 1 School of Chemical and Physical sciences, Department of Industrial Chemistry, Atmiya University, Rajkot, 360005 India and School of Science & Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom Rinat Nigmatullin 2 School of Science & Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom and Department of Engineering, University of Bristol, Bristol, BS8 1QU, United Kingdom Fengge Gao 3 School of Science & Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom > Research Paper 2018 12 26 2019 04 18 Natural minute structures have been analyzed on numerous kind of surfaces like rose leaves, which are helpful for the development of biomimetic materials for self cleaning, fluidic drag reduction, bio-surface, anti-biofouling and prevention of water corrosion. We examined the micro scale structure on the leaves of Leucophyllumfrutescens (Purple sage), Lactuca virosa (Wild lettuce), Montbretia (Crocosmia) and Corymbia (Eucalyptus). Water droplet impact velocity V of 2m/s and 4m/s from the fixed distance shows rebound, oscillations and fragmentation. These are due to uneven distribution of small micro dots, three dimension waxes and tiny horizontal lines on the surfaces. At comparatively low impact velocity, partial bounce back and oscillations, and fragmentation and splashing were observed as velocity was increased. For characterization of wettability of the surface, Contact angle experiments have been performed and Cassie-Baxter and Wenzel approaches are discussed. Highest static contact angle (118.02±7.46) was observed on Leucophyllumfrutescens (Purple sage) surface due to densely covered with three dimensional waxes. However, lowest static contact angle (98.38±4.91) was observed on Eucalyptus (Corymbia) surface with small dots on the surface. Copyright@ International Science Community Association