The device scans employees' hands for contamination each time they wash and can detect gut biomolecules in just seconds.

该设备可在员工每次洗手时扫描其双手否受到污染，并能在几秒钟内检测出肠道生物分子。

Exactly how this happened is not known, but it involves biomolecules, molecules like DNA which are found in living things.

这到底发生的尚不清楚，但它涉及生物分子，在生物体内发现的DNA这样的分子。

As a result, the biomolecules were able to keep their natural shape.

果，生物分子能够保持其自然形状。

So one kind of biomolecule might get a blue color. Another kind of biomolecule might get a red color.

所以一种生物分子可能会变成蓝色。另一种生物分子可能会变成红色。

Various biomolecules in saliva absorb light at the same wavelength— but each has a distinct chemical fingerprint.

唾液中的各种生物分子吸收相同波长的光，但每一种都有不同的化学指纹。

And these molecules could react and start a sort of a reaction chain that would eventually lead to something like a biomolecule.

这些分子可以反应并启动一种反应链，最终产生类似生物分子的东西。

But the organic molecule that seems to be at the center of the chemical networks that can produce biomolecules is hydrogen cyanide.

但似乎处于可以产生生物分子的化学网络中心的有机分子氰化氢。

Ice is not a biomolecule, but when it mixes with carbon, the atoms in ice molecules change to produce complex molecules – and that's when interesting things start to happen.

冰不生物分子，但当它与碳混时，冰分子中的原子会发生变化，产生复杂的分子，——然后有趣的事情就开始发生了。