Direct Observation of Interactions between Nanoparticles and Nanoparticle Self-Assembly in Solution,Accounts of Chemical Research

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Direct Observation of Interactions between Nanoparticles and Nanoparticle Self-Assembly in Solution
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-05-09 00:00:00 , DOI: 10.1021/acs.accounts.7b00063
Shu Fen Tan _{1,

2} , See Wee Chee _{1,

2,

3} , Guanhua Lin _{1,

2,

3,

4} , Utkur Mirsaidov _{1,

2,

3,

4}

Affiliation

Hierarchically organized nanoparticles (NPs) possess unique properties and are relevant to various technological applications. An important “bottom-up” strategy for building such hierarchical nanostructures is to guide the individual NPs into ordered nanoarchitectures using intermolecular interactions and external forces. However, our current understanding of the nanoscale interactions that govern such self-assembly processes usually relies on post-synthesis/assembly or indirect characterization. Theoretical models that can derive these interactions are presently constrained to systems with only a few particles or on short time scales. Hence, except for a number of special cases, a description that captures the detailed mechanisms of NP self-assembly still eludes us. By imaging the assembly of NPs in solution with subnanometer resolution and in real-time, in situ liquid cell transmission electron microscopy (LC-TEM) can identify previously unknown intermediate stages and improve our understanding of such processes.

中文翻译：

溶液中纳米粒子与纳米粒子自组装相互作用的直接观察

分层组织的纳米颗粒（NPs）具有独特的特性，并且与各种技术应用相关。构建此类分层纳米结构的重要“自下而上”策略是利用分子间的相互作用和外力将单个NP引导到有序的纳米结构中。但是，我们目前对控制这种自组装过程的纳米级相互作用的理解通常依赖于后合成/组装或间接表征。可以导出这些相互作用的理论模型目前仅限于只有几个粒子或在短时间尺度上的系统。因此，除了一些特殊情况外，仍然无法获得描述NP自组装的详细机制的描述。

更新日期：2017-05-09

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