The effect occurs because of a molecule called staphylococcal lipoteichoic acid that acts on keratinocytes, the primary cell type found in the epidermis – or outer skin layer.

由于葡萄球菌脂磷壁酸分子（在表皮中或外皮层找到的主要细胞类型）作用在角化细胞上产生了这个结果。

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The lights prevent production of a particular type of nitrogen-oxide molecule known as a nitrate radical, which forms from reactions of nitrogen dioxide with ozone.

这些照明灯阻止了一种特殊类型的二氧化氮水分子——它被认为是一种硝分子团——的生成，而二氧化氮水分子则是二氧化氮和臭氧的反应物。

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The cellular activity that produces these receptors also produces a type of circular DNA molecule as a by-product.

而产生这些受体的细胞活性也会制造副产品——一种环状DNA分子。

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If a molecule of the type the sensor is designed to detect sticks to one of these anchored antibodies, it can also stick to an antibody on one of the free-floating outer channels.

ECONOMIST: Medical diagnostics

These trigger the degradation of another type of RNA molecule known as messenger RNA (mRNA), "down-regulating" the gene.

BBC: NEWS | Science/Nature | Salvage prospect for 'junk' DNA

Each type of atom or molecule absorbs particular colours.

ECONOMIST: Transits of Venus