  A way forward for high throughput fabrication of microcapsules with uniform
size and mechanical properties was reported irrespective of the kinetic process
of shell assembly. Microcapsules were produced using lab-scale emulsification
equipment with a micro-engineered membrane in the size range 10-100 $\mu$m. The
shell of the microcapsules was assembled at the water-oil interface by
complexation of polyelectrolytes or cross-linking of proteins providing two
different kinetic processes. Elasticity of microcapsules was characterized with
an automated extensional flow chamber. Process parameters were optimized to
obtain suspensions with size variations of 15%. Some strategies were developed
to obtain uniform elastic properties according to the kinetics of shell
assembly. If kinetics is limited by diffusion, membrane emulsification and
shell assembly have to be split into two steps. If kinetics is limited by the
quantity of reactants encapsulated in the droplet, variations of elastic
properties result only from size variations.
