Aquatic Toxicity Comparison of Silver Nanoparticles and Silver Nanowires
Table 4
Rate of biomass increase, average specific growth rate, and yield inhibition of algal cells during 72-hour exposure to different concentrations of AgNWs and AgNPs.
NMs
Conc. (mg/L)
Rate of cell biomass increase
%
%
AgNWs
Control (0)
22.25 ± 2.47
221,660
0
0.043 ± 0.001
0
Vehicle control
18.6 ± 1.50
175,830
20.7
0.040 ± 0.001
6.98
0.25
18 ± 0.5
170,000
23.3
0.040 ± 0.000
7.93
0.5
15.56 ± 0.11
145,833
34.2
0.038 ± 0.000
12.5
1
8.23 ± 0.25
72,500
67.3
0.029 ± 0.000
32.8
2
3.96 ± 0.25
30,000
86.5
0.019 ± 0.000
55.9
4
3.03 ± 0.28
19,167
91.4
0.014 ± 0.001
66
8
1.5 ± 1.21
5,500
97.5
−0.001 ± 0.021
103
AgNPs
Control (0)
73.67 ± 7.17
726,667
0
0.060 ± 0.001
0
0.25
10.83 ± 1.13
98,333
86.5
0.033 ± 0.001
44.6
0.5
7.25 ± 1.39
62,500
91.4
0.027 ± 0.003
54.2
1
3.25 ± 0.25
22,500
96.9
0.016 ± 0.001
72.6
2
1.83 ± 0.38
8,333
98.9
0.008 ± 0.003
86.2
4
1.33 ± 0.14
3,333
99.5
0.004 ± 0.001
93.4
8
0.75 ± 0.25
−2,500
100.3
−0.005 ± 0.004
107.6
: logarithmic growth rate; %: percent of yield inhibition; : average specific growth rate from time 0 to 72; %: percent of average specific growth rate inhibition. Data are presented as mean ± standard deviation.
