Living ‘mini-brains’ that cost just 25 cents could replace animal testing

 Working miniature brains with functioning nervous tissue could easily and inexpensively be used for testing in biomedical research, possibly lessening reliance on animals, researchers say.

According to the team behind the ‘mini-brains’ – which are functional in that they are an electrically active sphere of central nervous system tissue – the mini-brains could be ideal for testing things like drugs research, neural tissue transplants, or experiments with stem cells. The process for building them is described in a new paper by researchers from Brown University in the US.

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