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The fabrication of next-generation engineering scaffolds with improved multifunctionality needs the rational design of structured materials, supported by an understanding of basic structure–function relations. To fabricate a well-defined hierarchically macroporous structure, bottom-up methods related to the self-assembly routes can be also employed.
Introduction Three-dimensional (3D) printing is considered to be the process of material assembly to construct 3D structures in a layer-by-layer manner. (1) This technology can contribute to waste reduction and to the significant advancement of environmental sustainability on account of the decreased transportation, storage requirements, and the decentralization of material preparation.
It takes patience, enthusiasm, and passion to make images underwater, but it’s worth the effort: The world below the surface is a captivating and magical place. Members of National Geographic’s Your Shot community were invited to submit their best underwater photographs. For 90 days, every image posted with the hashtag “underwater” was reviewed by curator Lauri Hafvenstein, and her top picks have been featured on the Your Shot Blog, Editor’s Spotlight.
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