The Liddy Shriver Sarcoma Initiative has an easy-to-understand article about the use of nanotechnology in oncology:
http://sarcomahelp.org/research_center/nanotechnology.html
An approach that sounds very appealing to me is the "gene-silencing nanoparticles" used in Ewing's sarcoma research. I wish the same type of approach was applied to synovial sarcoma...
Here is another interesting article on the subject:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3018446/pdf/1741-7015-8-83.pdf