Universal glue for body cells targets drugs

All mammalian cells are surrounded by a membrane covered in polyvalent choline phosphate, or PC-groups, that repel aqueous particles. Donald Brooks and his colleagues at UBC, tried rearranging the particles in PC-groups to reverse their polarisation. They then decorated polymers with these new CP-groups.
When added to human blood, the CP molecules stuck to the PC-groups on blood cell membranes because of their opposite charges. Brooks says a piece of film covered in CP-decorated molecules would stop bleeding by sticking the exposed blood cells together.
The team also found that some tissues can absorb CP-molecules, suggesting that the molecules could be attached to drugs to deliver them into specific cells without affecting others.

New Scientist, Mon Mar 19 2012, By: Michael Slezak, Link to full text