Hongjie Dai is an Associate Professor in the Chemistry Department and Laboratory of Advanced Materials at Stanford University. He received his B.A. in Applied Physics from Tsinghua University in P. R. China, and his Ph. D. in Physical Chemistry from Harvard University. He has been at Stanford since 1997 following a postdoctoral research at Rice University. His research program interfaces with chemistry, physics and biological applications of novel nanostructured materials including carbon nanotubes and nanowires. He has developed synthesis methods to obtain various interesting carbon nanotube structures on surfaces. He has carried out fundamental electrical, mechanical and electromechanical studies of these novel nanomaterials and investigated their applications for molecular electronics and miniature chemical and biological sensors. He has received various awards including the Julius Springer Prize for Applied Physics 2004, American Chemical Society Pure Chemistry Award, a Sloan Research Fellowship, a Packard Fellowship for Science and Engineering and a Terman Fellowship.