Polydopamine-Based Nanocomposites Applications in Biomedical and Advanced Sensors

Area of Science:

• Materials Science
• Polymer Chemistry
• Biomedical Engineering

Background:

• Polydopamine (PDA) is a mussel-inspired polymer with excellent adhesion, redox activity, and surface chemistry.
• Existing reviews often separate PDA's chemistry from its medical applications, creating a knowledge gap.

Purpose of the Study:

• To bridge the gap between PDA's structural properties and its performance in advanced technologies.
• To provide a comprehensive, application-oriented perspective on PDA in sensing and biomedical engineering.

Main Methods:

• Review of controlled PDA polymerization techniques for nanostructure design (nanoparticles, hollow nanocapsules, thin films, hybrid coatings).
• Analysis of PDA's role in sensing (biomolecule immobilization, electron transfer, selective detection) and biosensing (electrochemical, optical, wearable devices).
• Exploration of PDA's biomedical applications (drug delivery, cancer therapy, tissue engineering, wound healing, controlled release).

Main Results:

• Controlled PDA polymerization yields tailored nanostructures enhancing performance in biomedical platforms.
• PDA significantly improves biomolecule immobilization, electron transfer, and biomarker detection in sensors.
• PDA's biocompatibility and functionalization enable diverse biomedical applications, including targeted therapies and regenerative medicine.

Conclusions:

• PDA is a key material for advanced sensors and biomedical systems due to its tunable properties.
• Integrating PDA's structure, synthesis, and functionalization drives innovation in sensing technology and biomedical engineering.