Silver nanoparticles: Synthesis, medical applications and biosafety

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Materials Science

Background:

• Silver nanoparticles (AgNPs) are highly valued nanomaterials in biomedicine due to their unique properties.
• AgNPs have demonstrated significant potential in various therapeutic and diagnostic applications.

Purpose of the Study:

• To review the synthesis methods, medical applications, and biosafety of AgNPs.
• To explore the biological action mechanisms and emerging alternatives like silver Ångstrom particles (AgÅPs).

Main Methods:

• Comprehensive literature review of AgNP synthesis (physical, chemical, biological).
• Analysis of AgNP applications in antimicrobial, anticancer, wound healing, and biosensing.
• Examination of AgNP biological mechanisms (Ag+ release, ROS generation, membrane disruption).

Main Results:

• AgNPs are synthesized via physical, chemical, and biological routes.
• Key applications include antimicrobial/anticancer therapy, wound/bone healing, vaccine adjuvants, and biosensors.
• Mechanisms involve Ag+ release, ROS generation, and membrane damage, but toxicity necessitates caution.

Conclusions:

• AgNPs present significant therapeutic potential but require careful consideration of biosafety.
• Silver Ångstrom particles (AgÅPs) show promise for improved efficacy and reduced toxicity.
• Future research should focus on overcoming challenges and optimizing AgNP development.