I thought you may find the following article useful. I have added the Pubmed citation:
Woolley TE, Baker RE, Gaffney EA, Maini PK. Influence of stochastic domain growth on pattern nucleation for diffusive systems with internal noise. Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Oct;84(4 Pt 1):041905. Epub 2011 Oct 3. PubMed PMID: 22181173.