By stringing together thousands of these so-called droplets (which measure about 50 microns across) using a custom-built 3D printer, the Oxford team believes it has engineered a "new type of material" that could eventually be used to ferry drugs throughout our internal systems to a specific target site, fill-in for damaged tissues or even mimic neural pathways via specially printed protein pores.
Researchers are trying, and company-funded clinical trials of targeted drugs have at least looked at whether the target is expressed (turned on) in tumor tissues.