Universal Antifogging and Antimicrobial Thin Coating Based on Dopamine-Containing Glycopolymers.

Area of Science:

• Materials Science
• Polymer Chemistry
• Surface Chemistry

Background:

• Developing advanced coatings with multiple functionalities is crucial for modern applications.
• Antifogging and antimicrobial properties are highly desirable for medical and optical devices.
• Existing coatings often require complex synthesis or lack broad applicability.

Purpose of the Study:

• To create a universal, one-step coating with both antifogging and antimicrobial properties.
• To synthesize novel hydrophilic glycopolymers for surface modification.
• To demonstrate the efficacy of the coating on diverse substrates.

Main Methods:

• Synthesis of glycopolymers (P1s and P2s) via sunlight-induced reversible-addition-fragmentation chain-transfer (RAFT) polymerization.
• One-step coating application utilizing catechol groups for surface immobilization.
• In situ formation of silver nanoparticles (AgNPs) within the polymer matrix.

Main Results:

• Developed superhydrophilic and transparent coatings with excellent antifogging capabilities.
• Achieved potent antimicrobial activity against *Escherichia coli* and *Staphylococcus aureus* via in situ AgNPs.
• Demonstrated strong adhesion of the coating to glass, silicon wafers, and polycarbonate.

Conclusions:

• The developed coating offers a simple, effective solution for combined antifogging and antimicrobial needs.
• The catechol and carboxyl groups facilitate both surface adhesion and AgNP formation.
• This technology holds significant promise for enhancing the safety and performance of medical and optical devices.