In the future, the value of gold might be measured in nanometers instead of in carats — especially for people with breast cancer. Joseph Irudayaraj’s lab at Purdue University is taking advantage of the optical and physical properties of gold to develop nanorods that can be used as diagnostic tools. Once in blood, these rods circulate and attach to specific cells. Right now, Irudayaraj is working on getting the gold nanorods to adhere to different types of breast cancer cells.

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The London School of Economics' Daniele Fanelli argues at the Proceedings of the National Academy of Sciences that the reproducibility crisis in science isn't as dire as some say.

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