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南方科技大学公共卫生及应急管理学院2025级博士研究生招生报考通知
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violetbobo

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[资源] 分支结构的自组装Nature mater已有1人参与

Self-assembly of molecular units into complex and functional
superstructures is ubiquitous in biology. The number of superstructures
realized by self-assembly of man-made nanoscale
units is also growing. However, assemblies of colloidal inorganic
nanocrystals1–3 are still at an elementary level, not
only because of the simplicity of the shape of the nanocrystal
building blocks and their interactions, but also because of
the poor control over these parameters in the fabrication of
more elaborate nanocrystals. Here, we show how monodisperse
colloidal octapod-shaped nanocrystals self-assemble, in
a suitable solution environment, on two sequential levels. First,
linear chains of interlocked octapods are formed, and subsequently
the chains spontaneously self-assemble into threedimensional
superstructures. Remarkably, all the instructions
for the hierarchical self-assembly are encoded in the octapod
shape. The mechanical strength of these superstructures is
improved bywelding the constituent nanocrystals together.





[url]http://115.com/file/aqyy7gam#
Hierarchical_self-assembly_of_suspended_branched_colloidal_nanocrystals_into_superlattice_structures.pdf[/url][ Last edited by violetbobo on 2011-10-5 at 15:24 ]
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