This is Lung Surfactant

New trendy design for this season's hottest fashion? Nope, it's lung surfactant:

The snapshot is a microscopic image that used fluorescent dye to reveal the patterns made by lung surfactant, a soaplike material that covers the inside of the lungs. Without surfactant, the lungs would collapse.

"During the breathing cycle, as your lung is compressed, it will form this pattern," said Prajna Dhar, the creator of the striking microscopic image. [...] The researchers took the patterned surfactant image as part of a study investigating how nanoparticles affect the body.

Now, who says that science can't be hip? Link