Cooperative sequential adsorption models on a Cayley tree: analytical   results and applications
  We present a class of cooperative sequential adsorption models on a Cayley tree with constant and variable attachment rates and their possible applications for ionic self-assembly of thin films and drug encapsulation of nanoparticles. Using the empty interval method, and generalizing results known from reaction-diffusion processes on Cayley trees, we calculate a variety of quantities such as time-dependent surface coverage and time-dependent probabilities of certain particle configurations. 
D. A. Mazilu, I. Mazilu, A. M. Seredinski, V. O. Kim, B. M. Simpson,   W. E. Banks
cond-mat.stat-mech