  We investigate neighbor-avoiding walks on the simple cubic lattice in the
presence of an adsorbing surface. This class of lattice paths has been less
studied using Monte Carlo simulations. Our investigation follows on from our
previous results using self-avoiding walks and self-avoiding trails. The
connection is that neighbor-avoiding walks are equivalent to the infinitely
repulsive limit of self-avoiding walks with monomer-monomer interactions. Such
repulsive interactions can be seen to enhance the excluded volume effect. We
calculate the critical behavior of the adsorption transition for
neighbor-avoiding walks, finding a critical temperature $T_{\text a}=3.274(9)$
and a crossover exponent $\phi=0.482(13)$, which is consistent with the
exponent for self-avoiding walks and trails, leading to an overall combined
estimate for three dimensions of $\phi_\text{3D}=0.484(7)$. While questions of
universality have previously been raised regarding the value of adsorption
exponents in three dimensions, our results indicate that the value of $\phi$ in
the strongly repulsive regime does not differ from its non-interacting value.
However, it is clearly different from the mean-field value of $1/2$ and
therefore not super-universal.
