Synthetic horseshoe crab blood, known as Limulus Amebocyte Lysate (LAL), has been used in medical diagnostics and research for decades. It is an essential component in detecting the presence of bacterial toxins in a wide range of products, such as medical devices, vaccines, and drugs.

Today, scientists have developed a new alternative to LAL: a synthetic version of horseshoe crab blood. This synthetic blood has the same ability to detect bacterial toxins, but without the need for harvesting or exploiting horseshoe crabs. This is an exciting development, as it could help reduce the pressure on horseshoe crab populations, while also providing a more sustainable alternative to LAL.

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source: Phys.org