Nucleated polymerisation in the presence of pre-formed seed filaments
  We revisit the classical problem of nucleated polymerisation and derive a range of exact results describing polymerisation in systems intermediate between the well-known limiting cases of a reaction starting from purely soluble material and for a reaction where no new growth nuclei are formed. 
Samuel I. A. Cohen, Michele Vendruscolo, Christopher M. Dobson, and   Tuomas P. J. Knowles
physics.bio-ph cond-mat.soft q-bio.BM