Mixed convection peristaltic flow of magnetohydrodynamic (MHD) nanofluid is analyzed. Effects of Brownian motion and thermophoresis are explored. Mathematical formulation is given in the presence of velocity, thermal, and concentration slip effects. Impacts of Joule heating and Soret and Dufour effects are also outlined. Long wavelength and low Reynolds number approximations are used in the modeling of nonlinear problem. Resulting equations are solved numerically. Effects of sundry parameters on the flow quantities are analyzed. (C) 2014 Elsevier B.V. All rights reserved.