Polymers showing intrinsic antimicrobial activity.

Area of Science:

• Materials Science
• Polymer Chemistry
• Microbiology

Background:

• Pathogenic microorganisms pose significant threats to human health across various sectors.
• Increasing antimicrobial resistance necessitates novel solutions beyond traditional drugs.
• Antimicrobial polymers, both natural and synthetic, present a viable alternative.

Purpose of the Study:

• To review recent advancements (past decade) in antimicrobial polymers.
• To highlight synthesis strategies and diverse applications of these polymers.
• To discuss the mechanisms of action against various pathogens.

Main Methods:

• Review of literature on intrinsic antimicrobial polymers.
• Analysis of synthesis methods, including post-synthesis modification and surface functionalization techniques (e.g., RAFT, ATRP, layer-by-layer).
• Examination of polymer utilization in surface coatings for medical devices and as direct antimicrobial agents.

Main Results:

• Numerous polymers with intrinsic antimicrobial properties have been developed.
• Effective synthesis strategies involve modifying natural polymers or creating new synthetic ones, often incorporating quaternary ammonium or guanidinium groups.
• Applications span surface coatings for medical devices (catheters, implants, lenses) and direct use as antibacterial agents (e.g., eye drops).

Conclusions:

• Antimicrobial polymers are a crucial area of research for combating pathogen threats.
• Surface functionalization and tailored synthesis are key to optimizing antimicrobial efficacy.
• Understanding the mechanisms of action is vital for developing next-generation antimicrobial materials.