The research group's publications suggest they 3D print a skeleton with embedded catalysts and release different reactants into the tank through the process to

The research group's publications suggest they 3D print a skeleton with embedded catalysts and release different reactants into the tank through the process to accrete a shell around the necessary electronics. http://www.chem.gla.ac.uk/cronin/publications.php http://www.chem.gla.ac.uk/cronin/publications.php The animation seems pure fantasy, some blobs move like flubber and then spontaneously look like a plane.