The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China.
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
Adv Mater. 2019 Jan;31(4):e1805976. doi: 10.1002/adma.201805976. Epub 2018 Nov 20.
As one of the most widely discussed fields, the assembly of nanomaterials has always been extensively studied. However, its inverse process, namely disassembly, is still limited in the ambit of biomolecules. Specifically, in the emerging 2D research field, disassembly still remains unexplored. Inspired by the disassembly of DNA molecules via breaking intermolecular hydrogen bonds, the disassembly of 2D vertical heterostructures (2DVHs) is first achieved through the weakening of the interlayer van der Waals interactions. As a demonstration, ReS /WS VHs is successfully disassembled into individual building blocks. Density functional theory calculations are performed to study the disassembly of the 2DVHs, which simulate that 2DVHs are first activated by the disassembly promoters and then disassembled with weakened interlayer van der Waals interactions. Such a disassembly process demonstrates that it has great potential to be expanded as a general strategy to achieve the disassembly of other 2D superstructures.
作为讨论最广泛的领域之一，纳米材料的组装一直受到广泛研究。然而，其逆过程，即拆卸，仍然局限于生物分子的范围。具体来说，在新兴的 2D 研究领域，拆卸仍然没有得到探索。受通过打破分子间氢键来拆卸 DNA 分子的启发，通过削弱层间范德华相互作用，首次实现了 2D 垂直异质结构（2DVHs）的拆卸。作为一个演示，ReS/WS VH 被成功地拆分成单个构建块。通过密度泛函理论计算来研究 2DVHs 的拆卸过程，模拟 2DVHs 首先被拆卸促进剂激活，然后在减弱的层间范德华相互作用下进行拆卸。这种拆卸过程表明，它很有潜力被扩展为一种通用策略，以实现其他 2D 超结构的拆卸。
