正如在最新一期《纳米快报》中报道的一样,崔教授与其团队发现滤水器在-20伏的电压下工作时,可消灭89%的细菌,在+20伏的电压下工作时,可消灭77%的细菌。
At zero volts, most of the bacteria survived.
而在不通电的情况下,大部分细菌都得以存活。
In a follow-up experiment, in which contaminated water was run through three of the newfilters in sequence, 98% of the bacteria were killed.
在进一步的实验中,受污染的水依次流经三个新型滤水器,结果98%的细菌被消灭了。
Using silver this way might sound expensive, but it is not.
如此使用银乍听起来十分昂贵,实则不然。
The amount involved is minuscule, as is the quantity of electricity needed to keep thefilter charged .
银的使用量非常小,与维持滤水器运转所需电量一般。
And the filter itself would be expected to last indefinitely.
此外,滤水器本身还可望永久使用。
The next test, then, is to see if the new device kills the full range of dangerous bacteriafound in polluted water.
随后的测试将证明这种新型滤水器是否能消灭在受污染的水中所发现的各种有害细菌。
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