M. Girardi and W. Figueiredo have proposed a simple model of aggregation in
one dimension to mimic the self-assembly of amphiphiles in aqueous solution
[Phys. Rev. E 62, 8344 (2000)]. We point out that interesting results can be
obtained if a different set of interactions is considered, instead of their
choice (the s=1 Ising model).Comment: Accepted for publication in Phys. Rev.