'Nobody in the industry ever works with puppets that small': A look at the unique strategies devised to make Marcel the Shell a movie star.

The technical process in question is stop-motion animation. Marcel the Shell with Shoes On is just that — a one-inch hermit crab shell with a pair of tiny shoes.

In this process, inorganic nanoparticles were individually attached to the surface of polymer microparticles, forming a core-shell structure where the nanoparticles envelop the polymer microparticles ...