Anisotropic Nanoparticles and Anisotropic Surface Chemistry
Anisotropic Nanoparticles and Anisotropic Surface Chemistry
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DOI：
10.1021/acs.jpclett.5b02205
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发表时间：
2016-02-18
影响因子：
5.7
通讯作者：
Murphy, Catherine J.
中科院分区：
文献类型：
--
作者：
Burrows, Nathan D.;Vartanian, Ariane M.;Murphy, Catherine J.
各向异性纳米粒子是材料工程的重要组成部分。不同寻常的特性伴随着额外的各向异性--通常达到了非凡的程度--实现了无数的新应用。对于自下而上的组装，各向异性对可编程性至关重要；各向同性粒子缺乏方向性相互作用，只能按照基本的组装规则进行自组装。各向异性粒子长期以来一直令科学家着迷，其性质和组装行为多年来一直是许多理论研究的主题。然而，直到最近，实验才赶上了理论。我们已经开始见证了具有受控各向异性的纳米颗粒的合成的巨大多样性。在这一视角下，我们重点介绍了激励该领域的综合成就，全面讨论了种子介导法和替代生长方法的机制和产品。我们还讨论了最近在区域特异性功能化方面的突破和挑战，这是开发纳米颗粒各向异性的下一个前沿。
Anisotropic nanoparticles are powerful building blocks for materials engineering. Unusual properties emerge with added anisotropy-often to an extraordinary degree-enabling countless new applications. For bottom-up assembly, anisotropy is crucial for programmability; isotropic particles lack directional interactions and can self-assemble only by basic packing rules. Anisotropic particles have long fascinated scientists, and their properties and assembly behavior have been the subjects of many theoretical studies over the years. However, only recently has experiment caught up with theory. We have begun to witness tremendous diversity in the synthesis of nanoparticles with controlled anisotropy. In this Perspective, we highlight the synthetic achievements that have galvanized the field, presenting a comprehensive discussion of the mechanisms and products of both seed-mediated and alternative growth methods. We also address recent breakthroughs and challenges in regiospecific functionalization, which is the next frontier in exploiting nanoparticle anisotropy.