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Category: Cells

Peeking into a chrysalis, videos reveal growth of butterfly wing scales | MIT News
November 22, 2021

If you brush against the wings of a butterfly, you will likely come away with a fine sprinkling of powder. This lepidopteran dust is made up of tiny microscopic scales, hundreds of thousands of which paper a butterfly’s wings like shingles on a wafer-thin roof. The structure and arrangement of these scales give a butterfly its color and shimmer, and help shield the insect from the elements. Now, MIT engineers have...

Investigating pathogens and their life cycles, for the benefit of society | MIT News
November 21, 2021

Desmond Edwards was a little kid when first learned about typhoid fever. Fortunately, he didn’t have the disease. He was looking at a cartoon public health announcement. The cartoon, produced by the Pan American Health Organization, was designed to educate people in his home country of Jamaica about the importance of immunizations for diseases like typhoid. The typhoid character in the cartoon was so unpleasant it gave...

Hunting a “Jekyll-and-Hyde” molecule | MIT News
November 13, 2021

MIT chemical engineers have developed a way of swiftly screening compounds to determine their therapeutic potential for certain kinds of cancers. With a genetically engineered sensor and high-throughput technology, their method probes for changes in cellular concentrations of hydrogen peroxide (H2O2), a specialized molecule known as an oxidant. “The regulatory pathways of some tumors depend on elevated levels of...

For stem cells, bigger doesn’t mean better | MIT News
November 12, 2021

MIT biologists have answered an important biological question: Why do cells control their size? Cells of the same type are strikingly uniform in size, while cell size differs between different cell types. This raises the question of whether cell size is important for cellular physiology. The new study suggests that cellular enlargement drives a decline in function of stem cells. The researchers found that blood stem...

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