德国鲁尔大学的皮肤病学家发现，人体表面深0.25～0.4mm的皮肤会直接由体外的空气获得氧气。这一深度较过去的估计值高出10倍。从体外获得氧气的皮肤层包括全部的表皮──最外层的活细胞，以及包含有汗腺及毛囊之真皮的一部分。研究人员利用能感测氧气的膜，小面积地覆盖皮肤表 A dermatologist at Ruhr University in Germany found that skin with a depth of 0.25 to 0.4 mm on the surface of the body would receive oxygen directly from the air outside the body. This depth is 10 times higher than the previous estimate. The skin layer from which oxygen is obtained in vitro includes the entire epidermis, the outermost living cells, and a portion of the dermis that contains sweat glands and hair follicles. Researchers use a membrane that senses oxygen to cover skin surfaces in small areas