Size limitations for the formation of ordered striped nanoparticles
Size limitations for the formation of ordered striped nanoparticles
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DOI：
10.1021/ja077383m
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发表时间：
2008-01-23
影响因子：
15
通讯作者：
Stellacci, Francesco
中科院分区：
文献类型：
--
作者：
Carney, Randy P.;DeVries, Gretchen A.;Stellacci, Francesco
在金纳米粒子（NP）的配体壳中的不混溶分子的组合已经显示出相分离成波纹结构;这种相分离可以用于引导NP组装成链。在这里，我们证明，只有在一定的尺寸范围内的纳米粒子可以形成链，我们的结论是，波纹形态的配体壳也只存在于给定的尺寸范围内。我们证实了这一结果与模拟的配位体安排在不同大小的纳米粒子。
A combination of immiscible molecules in the ligand shell of a gold nanoparticle (NP) has been shown to phase separate into a rippled structure; this phase separation can be used to direct the assembly of the NPs into chains. Here we demonstrate that only NPs within a certain size range can form chains, and we conclude that the rippled morphology of the ligand shell also exists only within that given size range. We corroborate this result with simulations of the ligand arrangement on NPs of various sizes.