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Table 3 Bacterial viability

From: Graphene oxide conjugated with polymers: a study of culture condition to determine whether a bacterial growth stimulant or an antimicrobial agent?

Incubate with MB medium

Incubate with PBS buffer

Concentration (μg/mL)

Viability (%) with treatment of GO

Viability (%) with treatment of GO-POAA

Viability (%) with treatment of GO-chitosan

Concentration (μg/mL)

Viability (%) with treatment of GO

Viability (%) with treatment of GO-POAA

Viability (%) with treatment of GO-chitosan

10

278 ± 14

189 ± 9

26 ± 12

10

112 ± 15

68 ± 12

13 ± 5

50

223 ± 15

72 ± 13

7 ± 3

50

40 ± 7

19 ± 4

0

100

96 ± 12

18 ± 7

0

100

3 ± 1

2 ± 1

0

200

87 ± 10

6 ± 2

0

200

0

0

0

300

45 ± 8

0

0

300

0

0

0

  1. Measured by treating GO sheets and GO-based materials (up to 20 μm wide) with B. subtilis. 10–300 μg mL−1 of materials were treated with B. subtilis. After 3 h incubation with nutrient medium or PBS, respectively, the CFU counting method was used. The number of surviving bacteria was determined and is expressed as a percentage (%) that corresponds to the unit of CFU mL−1. Data are mean ± SD (n = 6)