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Nano-scale comparative bacteria-surface interactions among Gram-positive and Gram-negative bacteria on the experimental materials at 2 h: (a) S. epidermidis micrograph on the Flat-Ti6Al4V material; (b) 80 nm NTs clearly showing the poor adhesion patterns of S. epidermidis; (c) S. epidermidis adhesion over the rough Ti6Al4V; (d) P. aeruginosa interaction over the flat Ti6Al4V; (e) bacilli contact on NTs; (f) P. aeruginosa onto the Rough material.
