Before revision:  Finally, to prove the robot's capabilities in direct contact with biological environments , we demonstrate the microbot 's ability to traverse forward and backward on the surface of a Dracaena Fragrans (corn plant), as well as upend on its mechanical tip.
After revision:  Finally, to prove the robot's capabilities in direct contact with biological environments , we demonstrate the microbot 's ability to traverse forward and backward on the surface of a Dracaena Fragrans leaf, and upend/engage on its mechanical tip.