Adhesive Bioactive Coatings Inspired by Sea Life

Area of Science:

• Biomaterials Science
• Nanotechnology
• Surface Chemistry

Background:

• Marine mussel adhesive proteins (MAPs) and nacre structures inspire biomimetic materials.
• Developing advanced coatings for orthopedic implants remains a significant challenge.

Purpose of the Study:

• To create novel organic-inorganic multilayered films mimicking nacre architecture.
• To incorporate bioactive glass nanoparticles and catechol-modified hyaluronic acid for enhanced properties.

Main Methods:

• Layer-by-layer (LbL) assembly using chitosan, hyaluronic acid-catechol, and bioactive glass nanoparticles.
• Characterization via quartz crystal microbalance, atomic force microscopy, UV-Vis spectrophotometry.
• Bioactivity assessment using simulated body fluid immersion and various spectroscopic/microscopic techniques.

Main Results:

• Successful fabrication of nacre-like multilayered films with enhanced adhesion.
• Demonstrated bioactivity through in vitro bonelike apatite formation.
• Films containing catechol groups and bioactive glass nanoparticles exhibited superior adhesion.

Conclusions:

• Multifunctional mussel-inspired LbL films exhibit both enhanced adhesion and bioactivity.
• These films hold significant potential as advanced coatings for orthopedic implants.