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, k* p" }- @7 [+ fCOVER False-colored scanning electron microscopy image of
+ d: s3 A8 O% [9 g! ]+ o* {carbonate-silica "flowers," each ~50 micrometers high. A vast array of similarly
0 q0 f) `0 h" Wcomplex, well-defined microstructures can be sculpted by manipulating conditions
' V1 T+ x; J9 w7 x3 T. `, M- Z0 Zsuch as pH, temperature, and carbon dioxide concentration. With insight into
# O$ ] s, D6 ]4 a& S3 P' N Wmolecular growth mechanisms, these structures are dynamically steered toward B2 c) E) k: b# {. o( o6 j# a
arbitrary, hierarchically assembled architectures. See pages 822 and 832, as well
, [4 S$ f) F7 D8 H4 W, ~ @as a slideshow online. Image: Wim Noorduin and Joanna Aizenberg % s) `# T' W h5 H( L& W
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发表于 2013-5-17 11:42
发表于 2013-5-17 14:03
