Carboxyl silver nanoparticles are widely used in the medical field for their antimicrobial properties. They are incorporated into wound dressings, coatings for medical devices, and antibacterial creams to prevent infections. In the textile industry, these nanoparticles are applied to fabrics to create antimicrobial clothing, reducing odors and bacterial growth. They are also utilized in water purification systems to eliminate harmful bacteria and pathogens. Additionally, carboxyl silver nanoparticles play a role in biosensing applications, where they enhance the sensitivity and accuracy of detecting biological molecules. Their unique properties make them valuable in various industries for improving hygiene, safety, and performance.