• A common way to form a model organ is to seed cells into channels in a small plastic chip and then feed them with nutrient-rich fluid that flows through the system to mimic blood. The devices can be used individually or connected to other types of organs-on-chips to approximate a biological system, or—eventually—perhaps an entire human body.
  • The US Environmental Protection Agency plans to announce next month an US$18-million programme to link ‘livers on chips’ with chips that simulate fetal membranes, mammary glands and developing limbs.
  • Researchers have already developed dozens of individual model organs; the next challenge is to hook them together with the eventual goal of forming an entire human body on a chip.

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