© xposedbones. With permission. Review: Silver nanoparticles: mechanism of antimicrobial action, synthesis, medical applications, and toxicity effects International Nano Letters 2012, 2:32 doi:10.1186/2228-5326-2-32 by Sukumaran Prabhu and Eldho K Poulose Department of Biotechnology, Sri Venkateswara College of Engineering, Sriperumbudur, Tamil Nadu, 602105, India