Q. Can we make artificial cells?
Research in progress at the "National Aeronautical and Space Administration (NASA)" is focused on artificial cells as a means to deliver medicine in outer space; these cells are able to withstand dehydration and hence can be safely stored for long periods. Artificial cells are made of a polymer which acts just like a cell membrane, though polymer is stronger and more manageable than real membranes. These polymers are known as polymersomes and can be made to cross-link with other polymers. Researchers feel that numerous kinds of molecules can be encapsulated within thesepolymersomes and then delivered to particular target organs. An illustration would be an artificial blood cell that not only delivers oxygen but also medication as it travels through the body.