6B8F:
reference: Hyperexpandable, self-healing macromolecular crystals with integrated polymer networks., Zhang L, Bailey JB, Subramanian RH, Tezcan FA, Nature. 2018 May;557(7703):86-91. doi: 10.1038/s41586-018-0057-7. Epub 2018 May, 2. PMID: 29720635

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