Hemolysis by <i>S. epidermidis</i> culture filtrates and PSM peptides.

<p>Hemolysis was determined by assays using sheep blood. (A) Hemolysis by synthetic, N-formylated PSMs of <i>S. epidermidis</i>. Negative control, DPBS. (B) Hemolysis by <i>S. epidermidis</i> culture filtrates (undiluted) and <i>S. aureus</i> LAC culture filtrate as comparison. All culture filtrates were from cultures grown for 18 h. Negative control, DPBS; positive control, 1% (v/v) Triton-X100 in DPBS.