Table 3 Inhibition zone diameter (millimeter) of the discs containing nanopigments and nanocomposites. 

From: Utilization of affordable nanocomposites with outstanding antimicrobial activity in waterborne coatings

Test bacteria

Samples

Commercial one

Group I

Group II

Nano-ZnO

(1)

ZnO/Si

(2)

Nano-CuO

(3)

CuO/Si

(4)

Nano-ZnO

(5)

ZnO/Si

(6)

Nano-CuO

(7)

CuO/Si

(8)

1

Micrococcus luteus

16

26

22.6

Nil

Nil

23.6

26.6

Nil

Nil

2

Staphylococcus aureus

21

Nil

Nil

Nil

Nil

Nil

17

19

Nil

3

Candida albicans

19

16.6

18.3

Nil

15

18.6

20.6

18.6

18