This review is focused on the subset of antibacterial agents whose action involves one-on-one targeting of infecting bacteria. These agents target individual bacteria and their efficacy is based on particle… Click to show full abstract
This review is focused on the subset of antibacterial agents whose action involves one-on-one targeting of infecting bacteria. These agents target individual bacteria and their efficacy is based on particle numbers in contrast to chemical agents such as antibiotics, whose efficacy is based on minimal inhibitory concentrations. Four extant members of this class are predatory bacteria, functional (plaque-forming) phages, and engineered particulate systems, phagemids (plasmids that contain a phage packaging signal) and antibacterial drones (ABDs) that package chromosomal island DNA carrying antibacterial genes. We differentiate the natural predators, phages and predatory bacteria, from the engineered delivery vehicles, phagemids and ABDs, because the latter are much more versatile and can largely bypass the historical warfare that informs the predator-prey interactions.
               
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