Brain-computer interface companies like Neuralink are in the news a lot these days for their potential to revolutionize how humans interact with machines, but electrodes are not the most brain-friendly materials -- they're hard and stiff, while brains are soft and squishy, which limits their efficacy and increases the risk of damaging brain tissue. A new hydrogel-based electrode developed at the Wyss Institute solves that problem by providing a tunable, conductive scaffold that human neurons and other cell types feel right at home in. Читать дальше...