![Microscope image of pig islet cells encapsulated in alginate](http://static.sciencelearn.org.nz/images/images/000/001/009/full/encapsulated_pig_islets_large20160405-12825-1vpktqc.jpg?1674165270)
Microscope image of pig islet cells encapsulated within a seaweed-based alginate coating. Living Cell Technologies (LCT) is transplanting encapsulated islets into patients with type 1 diabetes. The coating protects the islets from the transplant recipient’s immune system.