  We provide an updated study of some electronic properties of graphene
nanoscrolls, exploiting a related curved space Dirac equation for the charge
carriers. To this end, we consider an explicit parametrization in cylindrical
coordinates, together with analytical solutions for the pseudoparticle modes
living on the two--dimensional background. These results are then used to
obtain a compact expression for the sample optical conductivity, deriving from
a Kubo formula adapted to the 1+2 dimensional curved space. The latter
formulation is then adopted to perform some simulations for a cylindrical
nanoscroll geometry.
