A team of scientists have developed a way of guiding nerve cells to set up complicated networks that mimic the ones found in the brain.
Allergic reactions to everyday chemicals are common causing eczema in millions of people, and tests on animals have been important in testing new chemicals for skin sensitisation.
A functional artificial lung on a chip, which mimics the behavour of mouse lungs, has been created.
Artificial human skin developed in the laboratory has been successfully grafted onto mice.
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