  In this article, we present a fermionic extension of the scalar Born-Infeld
equation, which has been derived from the Nambu-Goto superstring action in
(2+1) dimensions through the Cartesian parameterization. It is demonstrated
that in the relativistic limit where c \to \infty, the fermionic Born-Infeld
model reduces to the supersymmetric Chaplygin gas model in one spatial
dimension. However, the supersymmetry itself is not preserved.
