Protocol for high-density peptide and protein presentation on biomaterial surfaces using virus-like particles

Area of Science:

• Biomaterials Science
• Protein Engineering
• Nanotechnology

Background:

• Biomaterial surface functionalization is crucial for controlling cellular responses.
• Existing methods often lack control over ligand density and spatial arrangement.
• Virus-like particles offer a versatile platform for ordered molecular presentation.

Purpose of the Study:

• To develop a protocol for high-density peptide and protein presentation on biomaterial surfaces.
• To enable controlled and reproducible cell-material interaction studies.
• To facilitate the biofunctionalization of implant-relevant surfaces.

Main Methods:

• Design, recombinant production, purification, and quality control of peptide- or protein-displaying virus-like particles.
• Functionalization of polydimethylsiloxane (PDMS) and other solid substrates using these particles.
• Utilizing self-assembling virus-like particles for multivalent and spatially controlled ligand presentation.

Main Results:

• Achieved high-density presentation of peptides and proteins on biomaterial surfaces.
• Demonstrated successful functionalization of PDMS and other substrates.
• Enabled multivalent and spatially controlled ligand presentation.

Conclusions:

• The presented protocol provides a robust method for biomaterial surface functionalization.
• This approach is applicable to reproducible cell-material interaction studies.
• The technique is valuable for the biofunctionalization of implant-relevant surfaces.