If you could trap a moment of sorrow or a deep joy, in what form would you like to keep? This project explores how designing with biology can allow new sets of affordances and ways of expressing and interacting with the artifacts. The project, Equilibrium, was designed in collaboration with biologists. It uses a biochemical process between crystalized lysozyme, a protein present in human tears, and gold nanoparticles, embedded inside a wearable. Once the components interacted, they created feedback visible as colorization of a wearable, acting as a way to commemorate chapters in life, exploring how the future could look as we move from machines to organisms, from pixels to cells.