Nanotechnology in Tissue Engineering

Nanotechnology is defined as an engineering field concerned with understanding, controlling, modifying at the atomic level, and functionalizing materials with dimensions between 1 and 100 nanometers. The most distinguishing feature of nanotechnology compared to microtechnology is the ability to manipulate materials at a smaller scale, coupled with the fact that materials exhibit different properties at the nanoscale. The properties of a material change when one or more of its dimensions are reduced to the nanometer scale.

Nanotechnology requires significantly more fundamental science and theoretical research compared to all known technologies. On one hand, nanotechnology represents performance improvements in existing products and processes in economic and ecological parameters; on the other hand, it also refers to new products and application areas developed through advancements in existing technologies. In recent years, key application areas of nanotechnology have emerged including nanomaterials, nanoelectronics, nanophotonics, nanomechanics, nanobiotechnology, nanochemistry, and nanotextiles. The field of nanomaterials is particularly attractive for medical purposes due to its significantly higher surface-to-mass ratio compared to other materials, as well as its unique capabilities for capturing and transporting components such as drugs and probes on its surface.

Nanotechnology in Tissue Engineering

Nanotechnology is frequently used in research on tissue repair. Nanofibers attract attention in tissue regeneration due to their structural similarity to the extracellular matrix (ECM). Nanofiber-based materials not only provide mechanical support for tissue repair but can also serve as delivery systems for drugs, growth factors, and other molecules, thereby contributing to tissue regeneration. Additionally, the morphology and biodegradability of nanofiber-based materials can be controlled according to the wound.

Nanomaterials are used as agents that accelerate the healing process due to their advantageous surface-to-volume ratios and drug delivery capabilities. Their small size enables them to penetrate into wounds, allowing direct contact with molecules at the injury site and enabling the localized release of bioactive agents or drugs. The use of nanomaterials ensures controlled release at the wound site, thereby reducing the number of therapeutic applications and risks associated with high drug doses. Moreover, biologically compatible nanomaterials suitable for enhancing wound healing influence extracellular matrix synthesis, cell proliferation, differentiation, and growth factor activity.