Figure 4
From: The growth of Staphylococcus aureus and Escherichia coli in low-direct current electric fields

S. aureus cells treated with 4 V⋅m−1. (a and b) Electric field-treated cells; (c and d) electrode-treated cells; (e and f) untreated cells. (a, c and d) ×30 000; (b, e and f) ×50 000.