Chemistry

Nano-silver from caper berries disrupts drug-resistant bacterial defenses

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NanoparticleBiofilmQuorum sensing

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This study investigated silver nanoparticles synthesized using quercetin and Capparis spinosa (caper) fruit extracts for their ability to disrupt bacterial biofilms and quorum sensing in multidrug-resistant Pseudomonas aeruginosa. The functionalized nanoparticles demonstrated significant anti-biofilm activity and interfered with bacterial cell-to-cell communication mechanisms that coordinate virulence and resistance. The quercetin coating enhanced the nanoparticles' antibacterial properties compared to conventional silver nanoparticles alone.


This research offers a potential alternative approach to combat antibiotic-resistant bacterial infections, which are a growing global health threat. The use of plant-derived compounds to enhance nanoparticle effectiveness could lead to new therapeutic strategies that target bacterial coordination systems rather than relying solely on traditional antibiotics.


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Source: Anti-biofilm and quorum sensing-modulatory effects of quercetin-functionalized Capparis spinosa fruit-derived silver nanoparticles against multidrug-resistant Pseudomonas aeruginosa