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Table 2 Anti-amoebic activity of the pure contact lens solutions and tannic acid-modified silver nanoparticles (AgTANPs) conjugated with the contact lens solutions after 6–96 h of incubation (% inhibition)

From: Tannic acid-modified silver nanoparticles enhance the anti-Acanthamoeba activity of three multipurpose contact lens solutions without increasing their cytotoxicity

 

6 h

24 h

48 h

72 h

96 h

SCA

31.95 ± 1.70

23.15 ± 3.93

37.68 ± 1.16

51.65 ± 2.75

47.15 ± 3.25

SCA + 2.5 p.p.m. AgTANPs

61.18 ± 1.34

51.60 ± 8.50

59.79 ± 11.19

66.02 ± 5.42

61.9 ± 2.41

SCA + 1.25 p.p.m. AgTANPs

61.67 ± 4.63

42.79 ± 19.26

52.03 ± 11.57

60.42 ± 4.25

54.50 ± 0.21

SCA + 0.5 p.p.m. AgTANPs

54.91 ± 3.89

36.88 ± 20.08

47.33 ± 10.25

58.21 ± 3.07

72.77 ± 1.71

SCA + 0.25 p.p.m. AgTANPs

52.49 ± 6.35

35.45 ± 10.65

45.35 ± 6.56

55.95 ± 1.15

51.31 ± 1.13

O-F

No activity

No activity

No activity

35.74 ± 0.95

47.35 ± 2.75

O-F 2.5 p.p.m. AgTANPs

31.11 ± 3.09

21.83 ± 4.85

44.79 ± 4.92

59.58 ± 1.14

57.72 ± 0.55

O-F + 1.25 p.p.m. AgTANPs

No activity

4.50 ± 11.51

33.32 ± 4.38

52.78 ± 0.98

52.29 ± 0.24

O-F + 0.5 p.p.m. AgTANPs

No activity

No activity

16.63 ± 3.70

41.62 ± 3.08

41.15 ± 2.46

O-F + 0.25 p.p.m. AgTANPs

No activity

No activity

No activity

36.82 ± 1.69

36.74 ± 1.77

ReNu

No activity

No activity

24.23 ± 4.88

43.99 ± 2.10

46.76 ± 0.64

ReNu 2.5 p.p.m. AgTANPs

41.59 ± 2.18

36.63 ± 4.69

56.72 ± 3.58

67.45 ± 2.68

64.59 ± 2.98

ReNu + 1.25 p.p.m. AgTANPs

39.58 ± 2.66

31.17 ± 5.28

50.07 ± 3.57

62.77 ± 2.79

58.85 ± 3.63

ReNu + 0.5 p.p.m. AgTANPs

39.18 ± 0.87

22.60 ± 7.05

45.22 ± 5.33

61.90 ± 2.21

58.56 ± 3.39

ReNu + 0.25 p.p.m. AgTANPs

32.99 ± 4.42

13.47 ± 0.14

43.52 ± 4.20

62.12 ± 7.68

57.55 ± 0.11

  1. No activity indicates a statistically insignificant result (P > 0.05). For other abbreviations, see Table 1