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Table 3 Disinfection effect on stainless steel carriers surface by 222-nm UVC excimer lamp (bacterial suspensions were prepared in PBS; stainless steel carriers were dried)

From: Study on disinfection effect of a 222-nm UVC excimer lamp on object surface

Diluent for bacterial suspension; treatment for stainless steel carriers

Temperature of the stainless steel carriers ( °C )

Mean log10 CFU in positive control group (range)

Mean KL ± SD for different irradiation time (s)

15

30

60

PBS; dried

4

6.07 (6.02–6.11)

Staphylococcus aureus

2.91 ± 0.03

3.18 ± 0.03

3.48 ± 0.03

6.04 (6.00–6.08)

Escherichia coli

2.93 ± 0.02

3.20 ± 0.03

3.50 ± 0.03

6.03 (5.98–6.07)

Pseudomonas aeruginosa

2.88 ± 0.04

3.16 ± 0.02

3.39 ± 0.04

− 20

6.06 (6.01–6.10)

Staphylococcus aureus

2.88 ± 0.03

3.17 ± 0.02

3.42 ± 0.03

6.03 (5.98–6.07)

Escherichia coli

2.89 ± 0.03

3.18 ± 0.02

3.44 ± 0.03

6.00 (5.95–6.05)

Pseudomonas aeruginosa

2.86 ± 0.06

3.14 ± 0.02

3.42 ± 0.02

  1. SD, standard deviation