Nano on reflection A number of experts from different areas of nanotechnology describe how the field has evolved in the last ten years by Bursten, JR, Roco, MC, Yang, W, Zhao, Y, Chen, C, Savolainen, K, Gerber, C, Kataoka, K, Krishnan, Y, Bayley, JHP, Nazar, L, Milana, S, Vandersypen, L, Weiss, PS, Schummer, J