ABSTRACT
This chapter describes the electrohydrodynamic process is a kind of physical synthesis method which involves sister technologies called electrospinning and electrospraying to form one-dimensional (1D) nanofibers and 3D spheres. It provides various advantages including continuous synthesis of nanomaterials with high reproducibility offered by electrostatic driven process; production of high purity nanomaterials; processing at ambient condition; and possibility to form nanomaterials from wide range of organic/inorganic and hybrid materials. The advantages including possibility to form diverse architecture including solid spherical particles, core-shell structures, fibers, porous fibers, aligned structures, hollow structures and 3D structures. Encapsulation techniques such as spray drying, freeze drying, coacervation, and cross-linking are in practice to encapsulate probiotics; however, the large porosity of encapsulating matrix may allow leakage of free cells into the product, exposing them to the adverse environment. The main controlling parameters of the process are solution parameter, atomization process parameters and ambient parameters.
