Mesocrystals have unique structural features and the physical and physiochemical properties that come from that structure have made them become a subject of interest.  Mesocrystals are expected to have a role in many different applications.  These include heterogeneous photocatalysts, electrodes, optoelectronics, biomedical materials, and lightweight structural materials.
The properties that make mesocrystals viable for future applications are their shared properties with nanoparticulate, mesoporous, and single-crystal materials. Because mesocrystals are made up of nanoparticles, the properties of the nanoparticles themselves are, in some cases, passed to the whole mesocrystal structure.  This allows for the practical application of mesocrystals because they are "potentially more stable analogues of nanoparticulate materials."  High porosity is generally a quality of mesocrystals, this is the property shared with mesoporous materials. Closed, internal pores are good for thermal and dielectric insulation and the open pores then aid in absorption and could be utilized for medical delivery.  Alternatively, a mesocrystal could have its pores filled and then it would be similar to a single-crystal material and have some unusual electronic and optical properties.  The diversity of the properties of mesocrystals could allow them to be effectively utilized in many applications.