Advances in selective laser sintering of polymers

Researchers at Fudan University, China, reviewed the fundamental mechanisms and recent developments in the selective laser sintering (SLS) of polymers, which is of great help for researchers to learn more about the fantastic ...

Re-spun silkworm silk is 70% stronger than spider silk

Spiders hold the market for the strongest silks but are too aggressive and territorial to be farmed. The next best alternative involves incorporating spider DNA into silkworms, an expensive and difficult-to-scale process. ...

Manufacturing microscopic octopuses with a 3D printer

Although just cute little creatures at first glance, the microscopic geckos and octopuses fabricated by 3D laser printing in the molecular engineering labs at Heidelberg University could open up new opportunities in fields ...

Can twin boundaries resist fatigue cracking?

Grain boundaries are widely distributed in metallic crystals and have important impacts on their mechanical properties. Among them, high-angle grain boundaries (HAGBs) can strengthen metallic materials, but the stress concentration ...

T cells use force to destroy cancer cells

As a part of our immune defenses, cytotoxic T cells—or killer T cells—seek out and destroy cells that are infected or cancerous. This process is essential for the body's defense against diseases.

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