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 1 d P1 H. ^/ [) m0 N" C7 P
COVER False-colored scanning electron microscopy image of
, i5 U3 e) G& T( f/ Ycarbonate-silica "flowers," each ~50 micrometers high. A vast array of similarly
9 W' c: _& h0 O- o2 v; \/ Tcomplex, well-defined microstructures can be sculpted by manipulating conditions % r9 f: R& f+ t: u8 K
such as pH, temperature, and carbon dioxide concentration. With insight into
2 O+ i, Q' e! b2 U$ Jmolecular growth mechanisms, these structures are dynamically steered toward ; Z2 G- N5 }; b+ o
arbitrary, hierarchically assembled architectures. See pages 822 and 832, as well
$ r; f3 L4 C5 N" O! _) w9 Y. C. z( ras a slideshow online. Image: Wim Noorduin and Joanna Aizenberg $ r: e! R) |1 M9 K
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发表于 2013-5-17 11:42
发表于 2013-5-17 14:03
