  Edible robotics is an emerging research field with potential use in
environmental, food, and medical scenarios. In this context, the design of
edible control circuits could increase the behavioral complexity of edible
robots and reduce their dependence on inedible components. Here we describe a
method to design and manufacture edible control circuits based on microfluidic
logic gates. We focus on the choice of materials and fabrication procedure to
produce edible logic gates based on recently available soft microfluidic logic.
We validate the proposed design with the production of a functional NOT gate
and suggest further research avenues for scaling up the method to more complex
circuits.
