An Automated Process for Layer‐by‐Layer Assembly of Polyelectrolyte Multilayer Thin Films on Viable Cell Aggregates

An automated process for modifying the surface of pancreatic islets grows uniform polyelectrolyte multilayer thin films, eliminating user variability associated with previous manual methods. Machine vision feedback allows for tight control of small fluid volumes, maintaining islet microenvironment. This process is adaptable to other fragile micron-scale particle systems.