Tissue engineering combines knowledge and achievements from material science, nanotechnology, cell biology, and developmental biology. The main goal of tissue engineering is to produce constructs that mimic native tissue for the regeneration of damaged tissues and organs.

Electrospun nanofibers are created from the electrically charged jets of the polymer solution or polymer melt. Unusual properties of the resulting fibers predispose them for plenty of applications, with the most promising being nowadays tissue engineering.

3D printing has numerous advantages, such as the ability to create complex structures and the possibility of the application of the Computer-Aided Design (CAD) methods. It enables the use of various types of biomaterials.

Hydrogels are three-dimensional, hydrophilic, polymeric networks capable of absorbing large amounts of water or biological fluids. Due to their ability to absorb and retain a large amount of water, porosity, and relatively low stiffness, they can mimic natural living tissue.

Crystallization is, in general, an example of a separation process in which mass is transferred from a liquid phase (solution or melt) to a solid crystal. Solution crystallization is a complex process being governed by various parameters.