We explored the topologies of Physarum protoplasmic networks
and demonstrated that basic logical gates can be implemented in
living slime P. polycephalum. The Physarum fluidic gates are synchronized
by propagating calcium waves. Slime mold P. polycephalum
is a living microfluidic device. Even the diameter of
Physarum protoplasmic tubes, approx. 100 mm, matches the width
of most common man-made microfluidic devices