There is a catch, though: a process called biofouling, in which foreign objects implanted in the body become encrusted with proteins and tissue.

被称做物污垢的过程，即被移植进人体的外来物会嵌入蛋白质和组织中。

Dr Sarpeshkar also has a novel solution to the biofouling problem: implant the fuel cell in the cerebrospinal fluid (CSF) surrounding the brain.

另外，Sarpeshkar博士还有一个针物燃料题的新方法：在大脑周围的脑脊液（CSF）中植入能量池。

Some years I'll get biofouling, like sea squirts and things will stick to it really early, which really affects whether I can use it for food.

有几年我会被物污染， 比如海鞘，而且东西很早就会粘在上面，这真的会影响我是否可以用它做食物。

And if the kelp has got a lot of biofouling on it, that's really good for the land-based farmer, because it's packed full of these micronutrients and nitrogen and carbon.

如果海带上有很多物污垢，那陆上农民来说真的很好，因为它充满了这些微量营养素以及氮和碳。