The first structures ever 3-D printed inside living cells point to applications for biology research.
For the first time, scientists have 3-D printed objects within living cells, including a 10-micrometer long elephant and tiny “barcodes” that could help track individual cells. Remarkably, many of the cells“It’s amazing to see that some of the cells actually do survive,” says biophysicist Kerstin Göpfrich of Heidelberg University in Germany, who wasn’t involved with the research. “Honestly, I wouldn’t have thought this. If you told me I would have been like, ‘Nah, never.
Even with the precautions, many of the cells died within 24 hours. “It seems to be related simply to the fact that cells don’t like having liquids injected into them, and that’s a prerequisite for the 3-D printing,” Gather says. . The microlaser consists of a tiny sphere that, when illuminated, confines and amplifies light, emitting laser light. Subtle variations in the sizes of the spheres will affect the emitted light, which could give each cell a distinct light signature. Microlasers could also be used to sense conditions within a cell that would alter the light emitted, Gather says, such as the presence of certain biomolecules bound to its surface.
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