A combined team of researchers from Spain and Australia has discovered what they claim is the first known instance of a biomaterial that can kill bacteria on contact based only its physical surface structure.
Cicada (P. claripennis) wing surface topography. Credit: Biophysical Journal, doi:10.1016/j.bpj.2012.12.046. Photo by Science X. Image sourced from Phys.org. Available at: https://scx1.b-cdn.net/csz/news/800a/2013/11-researchersf.jpg