Nano silver took anti-bacteriaaction on both Gram negative and Gram positive bacteria, the anti- bacteria abilities strengthened with the dosage increasing.
纳米银对革兰氏阳菌和革兰氏阴菌均有抗菌作用，抗菌性能随用量的增多而增强。
2
Now we know why: it seems nickel imitates the action of bacteria.
现在我们了解了为什么会这样：看上去是镍模仿了细菌的行为。
3
Microbial fuel cells work through the action of bacteria which can pass electrons to an anode.