Skip to main content

Table 4 Relation between the concentrations of AgNPs and MIC values of antibiotics among ESBL producing K. pneumoniae isolates

From: Combination of silver nanoparticles with ineffective antibiotics against extended spectrum beta-lactamases producing isolates at Alexandria Main University Hospital, Egypt

Antibiotics (MICs)

MIC of silver in combination

Ag/2

Ag/4

Ag/8

Ag/16

No. (%)

No. (%)

No. (%)

No. (%)

Ampicillin

S (≤ 8 µg/ml)

6 (75.00%)

5 (62.50%)

0 (00.00%)

0 (00.00%)

I (= 16 µg/ml)

0 (00.00%)

1 (12.50%)

5 (62.50%)

1 (12.50%)

R (≥ 32 µg/ml)

2 (25.00%)

2 (25.00%)

3 (37.50%)

7 (87.50%)

Cefotaxime

S (≤ 1 µg/ml)

7 (87.50%)

7 (87.50%)

1 (12.50%)

0 (00.00%)

I (= 2 µg/ml)

1 (12.50%)

1 (12.50%)

6 (75.00%)

2 (25.00%)

R (≥ 4 µg/ml)

0 (00.00)

0 (00.00%)

1 (12.50%)

6 (75.00%)

Ceftazidime

S (≤ 4 µg/ml)

7 (87.50%)

7 (87.50%)

1 (12.50%)

0 (0.00%)

I (= 8 µg/ml)

1 (12.50%)

1 (12.50%)

5 (62.50%)

1 (12.50%)

R (≥ 16 µg/ml)

0 (00.00%)

0 (00.00%)

2 (25.00%)

7 (87.50%)

Ciprofloxacin

S (≤ 0.06 µg/ml)

6 (75.00%)

6 (75.00%)

1 (12.50%)

0 (00.00%)

I (0.12–0.5 µg/ml)

2 (25.00%)

2 (25.00%)

5 (62.50%)

3 (37.50%)

R (≥ 1 µg/ml)

0 (00.00%)

0 (0.00%)

2 (25.00%)

5 (62.50%)