Microgel-based bioink for extrusion-based 3D bioprinting and its applications in tissue engineering

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Biofabrication

Background:

• Extrusion-based 3D bioprinting is a versatile technique for creating biomimetic constructs.
• Conventional hydrogel bioinks have limitations due to their dense structure, hindering cell support.
• Microgel-based bioinks present a promising alternative with enhanced properties.

Purpose of the Study:

• To review the evolution and requirements of bioinks.
• To compare microgel-based bioinks with conventional hydrogel bioinks.
• To examine the applications, advantages, limitations, and future perspectives of microgel-based bioinks in tissue engineering.

Main Methods:

• Literature review focusing on bioink development and applications.
• Discussion of microgel fabrication, formulation, and assembly kinetics.
• Analysis of microgel-based bioinks in pre-printing, printing, and post-printing stages.

Main Results:

• Microgel-based bioinks offer superior printability and functionality compared to traditional hydrogels.
• They demonstrate potential in various tissue engineering applications.
• Key properties and differences from hydrogel bioinks are highlighted.

Conclusions:

• Microgel-based bioinks show significant promise for overcoming current limitations in 3D bioprinting.
• Their unique properties can facilitate the creation of complex and functional tissue engineering scaffolds.
• Further research and development are expected to expand their applications.