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Creators/Authors contains: "Loh, Hyun-Chae"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Science Advances)
    Pathological breast calcification signatures reflect the tumor microenvironment and correlate with cancer severity. 
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  2. ; ; ; ; ; ; ; (, Acta Biomaterialia)
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  3. ; ; ; ; ; ; ; ; ; ; et al (, Science Advances)
    The emerging applications of hydrogels in devices and machines require hydrogels to maintain robustness under cyclic mechanical loads. Whereas hydrogels have been made tough to resist fracture under a single cycle of mechanical load, these toughened gels still suffer from fatigue fracture under multiple cycles of loads. The reported fatigue threshold for synthetic hydrogels is on the order of 1 to 100 J/m 2 . We propose that designing anti-fatigue-fracture hydrogels requires making the fatigue crack encounter and fracture objects with energies per unit area much higher than that for fracturing a single layer of polymer chains. We demonstrate that the controlled introduction of crystallinity in hydrogels can substantially enhance their anti-fatigue-fracture properties. The fatigue threshold of polyvinyl alcohol (PVA) with a crystallinity of 18.9 weight % in the swollen state can exceed 1000 J/m 2 . 
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