Self-Assembly of Peptides and Biomolecular Systems Into Functional Nanomaterials

Area of Science:

• Biomaterials Science
• Nanotechnology
• Biochemistry

Background:

• Peptide self-assembly is a key strategy for creating functional nanomaterials with biomedical applications.
• Noncovalent interactions (hydrogen bonding, π-π stacking, electrostatics, hydrophobic forces) drive hierarchical organization.
• Secondary structural motifs (α-helices, β-sheets) influence morphology, stability, and function.

Purpose of the Study:

• To review the physicochemical principles of peptide self-assembly.
• To summarize analytical techniques for characterizing peptide assemblies.
• To explore applications and challenges in biomolecular self-assembly for next-generation biomaterials.

Main Methods:

• Review of physicochemical principles governing self-assembly.
• Summary of analytical techniques for characterization.
• Discussion of secondary structural motifs and their impact on assembly.

Main Results:

• α-Helical peptides form nanotubular structures for cargo encapsulation.
• β-Sheet peptides form nanofibrillar networks and hydrogels with tunable properties.
• Protein and DNA self-assembly offer expanded design space for functional architectures.

Conclusions:

• Biomolecular self-assembly, encompassing peptides, proteins, and DNA, provides a versatile platform for advanced biomaterials.
• Applications in drug delivery, tissue engineering, and regenerative medicine are promising.
• Overcoming challenges like in vivo stability and scalability is crucial for future development.