Skip to Content
Merck
  • Synthesis, properties, and biomedical applications of gelatin methacryloyl (GelMA) hydrogels.

Synthesis, properties, and biomedical applications of gelatin methacryloyl (GelMA) hydrogels.

Biomaterials (2015-09-29)
Kan Yue, Grissel Trujillo-de Santiago, Mario Moisés Alvarez, Ali Tamayol, Nasim Annabi, Ali Khademhosseini
ABSTRACT

Gelatin methacryloyl (GelMA) hydrogels have been widely used for various biomedical applications due to their suitable biological properties and tunable physical characteristics. GelMA hydrogels closely resemble some essential properties of native extracellular matrix (ECM) due to the presence of cell-attaching and matrix metalloproteinase responsive peptide motifs, which allow cells to proliferate and spread in GelMA-based scaffolds. GelMA is also versatile from a processing perspective. It crosslinks when exposed to light irradiation to form hydrogels with tunable mechanical properties. It can also be microfabricated using different methodologies including micromolding, photomasking, bioprinting, self-assembly, and microfluidic techniques to generate constructs with controlled architectures. Hybrid hydrogel systems can also be formed by mixing GelMA with nanoparticles such as carbon nanotubes and graphene oxide, and other polymers to form networks with desired combined properties and characteristics for specific biological applications. Recent research has demonstrated the proficiency of GelMA-based hydrogels in a wide range of tissue engineering applications including engineering of bone, cartilage, cardiac, and vascular tissues, among others. Other applications of GelMA hydrogels, besides tissue engineering, include fundamental cell research, cell signaling, drug and gene delivery, and bio-sensing.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
INVIVO-GEL BMP2 bioink, suitable for 3D bioprinting applications
Sigma-Aldrich
Alkyne functionalized gelatin, degree of substitution > 80%
Sigma-Aldrich
TissueFab® Discrete GelMA, gel strength 300bloom, 20% degree of substitution
Sigma-Aldrich
INVIVO-GEL essential bioink, suitable for 3D bioprinting applications
Sigma-Aldrich
INVIVO-GEL VEGF bioink, suitable for 3D bioprinting applications
Sigma-Aldrich
INVIVO-GEL TGF-β bioink, suitable for 3D bioprinting applications
Sigma-Aldrich
Azide functionalized gelatin, degree of substitution >80%