A patient's own cells could be used to carry vital drugs to diseased organs. Researchers in Ireland are developing a device, which loads red blood cells with a drug, then injects the cells back into a patient's body. The blood cells, already "sensitised' could then be burst open by a quick blast of ultrasound to release the drugs into an affected area ( New Scientist , June 27, p 22).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/vector-cells
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drugs
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/blood
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ireland