RNA Nanotechnology. Peixuan Guo and coworkers proved the concept of RNA Nanotchnology in 1998, published in Molecular Cell and featured by Cell in the same year. They reported the assembly of RNA dimer, trimer and hexamer using the reengineered RNA fragments of the pRNA of bacteriophage phi29 DNA packaging motor by bottom up assembly technology (Interaction of phage phi29 pRNA to Form a Hexameric Complex for DNA Transportation. Peixuan Guo, Chunlin Zhang, Chaoping Chen, Kyle Garver, and Mark Trottier, Molecular Cell 2:149-155, see the Molecular Cell issue below). This paper can be found at http://nanobio.uky.edu/Guo/molecularcell.html .