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 results revealed that in trees closest to the Wi-Fi source the upper and lower epidermis (skin) of the leaves developed a metallic luster and began to die off.

结果是，离无线宽带辐射源最近的小树，叶子的上下表皮出现了金属光泽，并且开始枯萎。

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The skin consists of three layers: the epidermis, dermis and subcutaneous tissue.

皮肤有三层：表皮、真皮和皮下组织。

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In ablative (wounding) laser resurfacing, a laser beam destroys the outer layer of skin (epidermis) and heats the underlying skin (dermis), which stimulates the growth of new collagen fibers.

CNN: Wrinkles

The LEDs on GentleWaves shoot weak light (less than 25 watts) through the skin's epidermis to fibroblast cells, which produce structural proteins such as collagen and elastin.

FORBES: Magazine Article

The LEDs on GentleWaves shoot weak light (less than 25 watts) through the skin's epidermis to fibroblast cells, which produce such structural proteins as collagen and elastin.

FORBES: New wrinkle in the beauty business