Progress in ligand design for monolayer-protected nanoparticles for nanobio interfaces

Area of Science:

• Nanomedicine
• Materials Science
• Biotechnology

Background:

• Ligand-functionalized inorganic nanoparticles (monolayer-protected nanoparticles) are advanced drug delivery vehicles.
• Their efficacy relies on interactions with nucleic acids, proteins, and membranes.
• Nanoparticle properties are tunable via ligand chemistry, independent of the inorganic core.

Purpose of the Study:

• To review recent advances in nanoparticle ligand design for nanomedicine.
• To highlight open questions regarding atomic-scale interactions with biomolecules.
• To discuss factors influencing nanoparticle properties and biomolecule integrity.

Main Methods:

• Literature review of nanoparticle ligand design principles.
• Analysis of atomic-scale interactions between ligands and biomolecules.
• Discussion of experimental challenges in characterization and assessment.

Main Results:

• Ligand properties like charge, hydrophobicity, length, flexibility, and branchedness significantly impact nanoparticle performance.
• Biocompatibility and cell internalization are influenced by ligand characteristics.
• Understanding these interactions is crucial for developing effective nanomedicine.

Conclusions:

• Further research is needed to fully elucidate ligand design principles for nanomedicine.
• Cost-effective synthesis and characterization methods are required.
• Assessing biomolecular structural integrity upon nanoparticle interaction remains a challenge.