Water-Rich Fluid Material Containing Orderly Condensed Proteins

Area of Science:

• Biomaterials Science
• Protein Engineering
• Supramolecular Chemistry

Background:

• Proteins are essential biomolecules with diverse functions.
• Controlling protein assembly is crucial for developing advanced biomaterials.
• Existing methods often struggle to maintain native protein structure and function.

Purpose of the Study:

• To develop a novel method for creating protein-based materials.
• To investigate the role of surfactants in protein self-assembly.
• To maintain the native structure and function of proteins within the material.

Main Methods:

• Ordered self-assembly of native proteins segregated from water.
• Instantaneous material preparation via mixing protein solutions with anionic and cationic surfactants.
• Tunable assembly by adjusting surfactant ratios based on protein electrostatics.
• Disassembly of protein assemblies controlled by salt conditions.

Main Results:

• A fluid material with high protein content (120-310 mg/mL) was successfully formed.
• Surfactants acted as a versatile molecular glue, enabling controlled protein assembly.
• The material retained native protein structure and function due to a water-rich environment.
• An enzymatically active gel was prepared, demonstrating functional extensibility.

Conclusions:

• A novel, easily prepared protein material maintains protein integrity and function.
• Surfactant-mediated self-assembly offers a versatile approach for protein material design.
• This technology enables the use of proteins as components in integrated functionalized materials.