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Table 3 The WI, silver content, and antibacterial rate of different washing times

From: Synthesis of silver nanoparticles and antibacterial property of silk fabrics treated by silver nanoparticles

Silk samples

Laundering cycles

Silver content (mg/kg)

WI

Antibacterial activities

 

S. aureus

E. coli

 

Surviving cells (CFU/ml)

% reduction

Surviving cells (CFU/ml)

% reduction

Untreated

-

-

90.79

2.28 × 106

-

4.37 × 106

-

Silver-treated fabrics

-

98.65

86.32

1.16 × 103

99.49

8.74 × 102

99.98

5

95.02

86.43

3.44 × 103

98.49

1.74 × 103

99.96

10

88.85

87.13

1.28 × 103

99.49

6.11 × 103

99.86

20

87.14

87.58

2.53 × 103

98.89

1.48 × 103

99.96

 

50

81.65

87.71

5.86 × 103

97.43

6.11 × 103

99.86

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