New Bioluminescent Materials Sustain Light Across 4 Weekly Cycles

• Researchers at the University of Colorado Boulder (CU Boulder) have built light-emitting living materials by embedding a marine microorganism inside 3D printed alginate scaffolds and activating its bioluminescence chemically. Published in Science Advances, the constructs were made using the dinoflagellate Pyrocystis lunula, and maintained functional light output through four weekly stimulation cycles without structural breakdown.…

Researchers at the University of Colorado Boulder (CU Boulder) have built light-emitting living materials by embedding a marine microorganism inside 3D printed alginate scaffolds and activating its bioluminescence chemically. Published in Science Advances, the constructs were made using the dinoflagellate Pyrocystis lunula, and maintained functional light output through four weekly stimulation cycles without structural breakdown. The result has direct implications for how long living light-emitting materials can remain reliably reusable. P. lunula has long been attractive to materials researchers for its ability to flash light when physically agitated, a defense mechanism the organism evolved against predators in turbulent ocean water. The problem is durability. Mechanical stimulation de