  The micro/nano encapsulation technology has acquired considerable attention
in the fields of drug delivery, biomaterial engineering, and materials science.
Based on recent advances in chemical particle synthesis, we propose a primitive
model of an encapsulation system produced by the self-assembly of Janus oblate
spheroids, particles with oblate spheroidal bodies and two hemi-surfaces coded
with dissimilar chemical properties. Using Monte Carlo simulation, we
investigate the encapsulation system with spherical particles as encapsulated
guests, for different densities. We study the anisotropic effect due to the
encapsulating agent's geometric shape and chemical composition on the
encapsulation morphology and efficiency. Given the relatively high
encapsulation efficiency we find from the simulations, we believe that this
method of encapsulation has potential practical value.
