Enzymatic Methods for Assembling and Modifying Hydrogel Biomaterials

Area of Science:

• Biomaterials Science
• Biochemistry
• Chemical Engineering

Background:

• Enzymes, biological catalysts, are crucial for hydrogel synthesis and modification.
• Hydrogels are water-swollen polymeric networks with diverse biomedical applications.
• Enzymatic techniques are valuable for mimicking tissue environments in lab assays.

Purpose of the Study:

• To review the literature on enzymatic hydrogel synthesis and modification.
• To examine various enzyme classes and their substrates used in hydrogel applications.
• To discuss the benefits and limitations of enzymatic approaches for biomaterial development.

Main Methods:

• Literature review conducted using Google Scholar, PubMed, and Web of Science.
• Analysis of enzyme classes including transglutaminases, oxidoreductases, transpeptidases, and proteinases.
• Evaluation of substrate incorporation into peptide precursors and synthetic polymers.

Main Results:

• Diverse enzyme classes facilitate hydrogel assembly and disassembly.
• Enzymatic substrates can be integrated into peptide precursors or polymer backbones.
• Benefits and limitations were assessed based on ease of use, synthesis, accessibility, and cost.

Conclusions:

• Enzymes are versatile tools for modifying natural and synthetic biomaterials.
• Leveraging "biologically invisible" enzymes like sortases is key for advanced, stimuli-responsive platforms.
• Enzymatic methods should be chosen carefully to avoid interference with native biological processes.