Copper nanoparticles impinging on a curved channel with compliant walls and peristalsis Noreen Sher Akbar, E. N. Maraj and Adil Wahid Butt Eur. Phys. J. Plus, 129 8 (2014) 183 Published online: 27 August 2014 DOI: 10.1140/epjp/i2014-14183-2