Unlike marker beads, the dots were painted directly on surface tissue, which allowed more detailed expression capture.

不同于“发光小球”，这些小点是直接绘在面部表皮组织上的，因而可以捕捉到更细微的表情。

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The shavings were then immunostained bathed in a special reagent that would mark the presence of abnormal proteins with a bright, telltale red or brown stain on the surface of the tissue.

NEWYORKER: Offensive Play

In one case, a man who had been a linebacker for sixteen years, you could see, without the aid of magnification, that there was trouble: there was a shiny tan layer of scar tissue, right on the surface of the frontal lobe, where the brain had repeatedly slammed into the skull.

NEWYORKER: Offensive Play

"Essentially we know the ZIP code of vessels within a certain tissue, we can program the address on the surface of the cell, " he said.

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