1. Lipoplexes and polyplexes : from gene delivery to gene expression / Gerardo Byk, Mirit Cohen-Ohana, and Fiana Mirkin -- 2. Cationic polymers for the delivery of therapeutic nucleotides / Wahid Khan, Saravanan Muthupandian, and Abraham J. Domb -- 3. Membrane/core nanoparticles for delivery of therapeutic nucleic acid / Younjee Chung and Leaf Huang -- 4. Delivery of single siRNA molecules / Caroline Palm-Apergi and Steven F. Dowdy -- 5. Cell-specific aptamer-functionalized RNAi : a new prospect for targeted siRNA delivery / Jiehua Zhou and John J. Rossi -- 6. Bioresponsive nanoparticles for the intracellular delivery of RNAi therapeutics / Kenneth Alan Howard -- 7. Lipid-like delivery materials for efficient siRNA delivery / James Dahlman, Robert Langer, and Michael Goldberg -- 8. Manipulation of leukocytes using therapeutic RNAi delivered by targeted and stabilized nanoparticles / Dan Peer -- 9. Lowering the siRNA delivery barrier : alginate scaffolds and immune stimulation / Jana McCaskill, Sherry Wu, Norliana Khairuddin, and Nigel A. J. McMillan.