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COVER False-colored scanning electron microscopy image of + e3 V0 e& K0 s& k6 i
carbonate-silica "flowers," each ~50 micrometers high. A vast array of similarly 9 b4 `+ e* i6 y" X% t' [1 r
complex, well-defined microstructures can be sculpted by manipulating conditions V2 P. @# D$ c3 p
such as pH, temperature, and carbon dioxide concentration. With insight into 4 v: C" V7 p5 b5 `7 S" p
molecular growth mechanisms, these structures are dynamically steered toward " L0 v, _" f# |4 B' L! ]
arbitrary, hierarchically assembled architectures. See pages 822 and 832, as well 7 h2 g9 W6 N5 U+ N
as a slideshow online. Image: Wim Noorduin and Joanna Aizenberg
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发表于 2013-5-17 11:42
发表于 2013-5-17 14:03
