连接器
DNA
二硫化钼
纳米技术
分子内力
材料科学
水溶液
化学
立体化学
计算机科学
有机化学
生物化学
操作系统
冶金
作者
Giuseppe Amoroso,Andrei V. Sapelkin,Qingyu Ye,Vicente Araullo‐Peters,Alessandro Cecconello,Gustavo Fernández,Matteo Palma
出处
期刊:Faraday Discussions
[The Royal Society of Chemistry]
日期:2021-01-01
卷期号:227: 233-244
被引量:3
摘要
Controlling the assembly of molybdenum disulfide (MoS2) layers into static and dynamic superstructures can impact on their use in optoelectronics, energy, and drug delivery. Toward this goal, we present a strategy to drive the assembly of MoS2 layers via the hybridization of complementary DNA linkers. By functionalizing the MoS2 surface with thiolated DNA, MoS2 nanosheets were assembled into mulitlayered superstructures, and the complementary DNA strands were used as linkers. A disassembly process was triggered by the formation of an intramolecular i-motif structure at a cystosine-rich sequence in the DNA linker at acidic pH values. We tested the versatility of our approach by driving the disassembly of the MoS2 superstructures through a different DNA-based mechanism, namely strand displacement. This study demonstrates how DNA can be employed to drive the static and dynamic assembly of MoS2 nanosheets in aqueous solution.
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