The scientists induced cracks in hydrogel samples with a standard Swiss Army knife © EMSI EPFL CC BY SA (IMAGE)

Ecole Polytechnique Fédérale de Lausanne

The scientists induced cracks in hydrogel samples with a standard Swiss Army knife © EMSI EPFL CC BY SA

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The scientists induced cracks in hydrogel samples with a standard Swiss Army knife © EMSI EPFL CC BY SA

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© EMSI EPFL CC BY SA

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