spmm Lv 1
http://www.csiro.au/en/News/News-releases/2015/Seashells-to-deliver-new-drugs-and-vaccines
Published in the journal Nature Communications, the development overcomes a critical challenge in biomedicine by ensuring important proteins remain effective in hostile environments.
http://www.nature.com/ncomms/2015/150604/ncomms8240/full/ncomms8240.html