Nanowerk (Jan. 26) -- A team of researchers from the University of Pennsylvania, the University of California, Berkeley, and the University of Illinois at Urbana-Champaign has made inroads in solving one such hurdle. By demonstrating a new way to change the amount of electrons that reside in a given region within a piece of graphene, they have a proof-of-principle in making the fundamental building blocks of semiconductor devices using the 2-D material. Also: Phys.Org (Jan. 26), Controlled Environments (Jan. 28), Semiconductor Engineering (Santa Clara, Calif., Feb. 3).