Table 3 Surface structure parameters of three different surface types (unmodified Ti, TNT-118, TNT-73) obtained by profilometry.

From: Insight into antibacterial effect of titanium nanotubular surfaces with focus on Staphylococcus aureus and Pseudomonas aeruginosa

 

Sa (μm)

Sq (μm)

Sz (μm)

Sds (1/μm2)

Sdq (-)

Sdr (%)

Ssc (1/μm)

Ti

0.098 ± 0.002

0.144 ± 0.006

3.6 ± 0.3

0.28 ± 0.004

0.35 ± 0.01

5.6 ± 0.4

1.23 ± 0.06

TNT-118

0.194 ± 0.01d

0.28 ± 0.026c

4.0 ± 0.2

0.37 ± 0.01c

0.59 ± 0.05b

15.2 ± 2.3b

2.18 ± 0.2b

TNT-73

0.241 ± 0.012d,2

0.315 ± 0.011d

4.5 ± 0.4a

0.4 ± 0.02c

0.69 ± 0.05c

21.3 ± 3.0c,1

2.83 ± 0.27c,1

  1. Sa—arithmetic mean height of the surface, Sq—root mean square height of the surface, Sz—maximum height of the surface, Sds—density of summits, Sdq—root mean square gradient of the surface, Sdr—developed interfacial area ratio of the surface, Ssc—arithmetic mean summit curvature. Results represent the mean ± SD of measurement of 3 samples. Statistically significant differences are indicated as afor p < 0.05 bfor p < 0.01, cfor p < 0.001, dfor p < 0.0001 versus Ti, and as 1for p < 0.05, 2for p < 0.01 versus TNT-118.
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