Insect wings

The "clanger cicada" can physically kill bacteria by poking and shredding them with tiny pointy structures that seem to look a little like an old fashioned cheese grater. Keep in mind that this happens at a very small spacial scale, so the relationship between objects is different than in normal human experience. Essentially, the membrane of a bacterium spreads itself over the pointy nano-spikes of the insect wing. This is a little like a failed "laying on the bed of nails" attempt, but where the force involved with the bed of nails is gravity, gravity has nothing to do with the bacterium…