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A functional heart valve which a team of US scientists have built out of collagen using a 3D bioprinter. The breakthrough they say could one day create entire organs. — Carnegie Mellon University College of Engineering/AFP

Anatomy and physiology

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Ingestible insulin pills shaped like a tortoise shell

Biochemistry

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Device for delivery of once-a-month contraceptives (Tiffany Hua, MIT)

Cell and molecular biology

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Adobestock photo of a diamond in the rough.

Chemistry

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fluorescent neuron

Development

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Unlocking cancer immunity with T-cells

Diseases and disorders

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Photo by Mark Byzewski, image of Corral Bluffs

Earth and environmental science

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Photo by Mark Byzewski, image of Corral Bluffs

Ecology

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Photo by Mark Byzewski, image of Corral Bluffs

Evolution

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dna helix

Genetics

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Plastic waste

Microbiology

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brain food

Neuroscience and behavior

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Robot Muscles from Vladislav Ociacia on Alamy

Physics

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Women working together to solve STEM problems

Psychology and social sciences

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blurred headlights

Space science

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Self-camouflaging robots like cephalopods

Technology and engineering

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