➀ The study published in Nano Letters reveals the intricate behavior of electron transport in bilayer graphene, emphasizing the role of edge states and a unique nonlocal transport mechanism; ➁ Bilayer graphene's tunable band gap makes it a promising material for valleytronics, a field focusing on the 'valley' quantum state for discrete data storage; ➂ The research identifies the source of nonlocal resistance in bilayer graphene, highlighting the impact of etching processes on device fabrication and valleytronics development.