二价
分子动力学
价(化学)
化学物理
纳米尺度
价键理论
纳米技术
化学
材料科学
结晶学
分子
计算化学
分子轨道
有机化学
作者
Yan Xiong,Zhiwei Lin,Deniz Mostarac,Brian Minevich,Qiuyuan Peng,Guolong Zhu,Pedro A. Sánchez,Sofia S. Kantorovich,Yonggang Ke,Oleg Gang
出处
期刊:Nano Letters
[American Chemical Society]
日期:2021-10-14
卷期号:21 (24): 10547-10554
被引量:13
标识
DOI:10.1021/acs.nanolett.1c03009
摘要
Assembly of nanoscale objects into linear architectures resembling molecular polymers is a basic organization resulting from divalent interactions. Such linear architectures occur for particles with two binding patches on opposite sides, known as Janus particles. However, unlike molecular systems where valence bonds can be envisioned as pointlike interactions nanoscale patches are often realized through multiple molecular linkages. The relationship between the characteristics of these linkages, the resulting interpatch connectivity, and assembly morphology is not well-explored. Here, we investigate assembly behavior of model divalent nanomonomers, DNA nanocuboid with tailorable multilinking bonds. Our study reveals that the characteristics of individual molecular linkages and their collective properties have a profound effect on nanomonomer reactivity and resulting morphologies. Beyond linear nanopolymers, a common signature of divalent nanomonomers, we observe an effective valence increase as linkages lengthened, leading to the nanopolymer bundling. The experimental findings are rationalized by molecular dynamics simulations.
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