TABLE 2.

Bacterial cell surface properties of biofilms of S. epidermidis M187 and S. haemolyticus M176 formed in the presence and absence of a sub-MIC concentration of dicloxacillin

StrainTreatmentaContact angle (°)Surface elemental composition
N/C ratioO/C ratioP/C ratio
M187CT28.0 ± 1.1b0.192 ± 0.0090.480 ± 0.0370.032 ± 0.004
M187DCX22.9 ± 1.60.145 ± 0.0250.399 ± 0.0010.038 ± 0.005
M176CT36.4 ± 2.20.152 ± 0.0450.397 ± 0.0110.031 ± 0.004
M176DCX31.8 ± 1.70.191 ± 0.0410.441 ± 0.0520.027 ± 0.005
  • a CT, cells grown in the absence of dicloxacillin (control); DCX, cells grown in the presence of dicloxacillin.

  • b The values are means ± standard deviations.