In the talk we will present a theoretical study on properties of a chain of two-level quantum emitters coupled to one dimensional nanostructures supporting a single propagating mode. The first part will be related to the case of an optical nanofiber and how a presence of long range dipole-dipole interaction of two-level systems affects its optical properties. The second part will be dedicated to temporal dynamics of a single excitation transport between emitters coupled through the guided mode of the structure in an asymmetric way - when a so-called spin-locking effect occurs – leading to an effective unidirectional transport.