An aromatic micelle with bent pentacene-based panels: encapsulation of perylene bisimide dyes and graphene nanosheets.,Chemical Science

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An aromatic micelle with bent pentacene-based panels: encapsulation of perylene bisimide dyes and graphene nanosheets.
Chemical Science ( IF 7.6 ) Pub Date : 2020-06-05 , DOI: 10.1039/d0sc01748e
Kenta Ito ₁ , Tomoya Nishioka ₁ , Munetaka Akita ₁ , Akiyoshi Kuzume ₁ , Kimihisa Yamamoto ₁ , Michito Yoshizawa ₁

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For exploitation of a new class of aromatic micelles, we synthesized a bent pentacene-based amphiphilic molecule through Diels–Alder reaction. The amphiphiles bearing two trimethylammonium tethers assemble into a spherical aromatic micelle, with an average core diameter of 1.5 nm, in water at room temperature. The new aromatic micelle efficiently encapsulates perylene bisimide (PBI) dyes and graphene nanosheets (GNS) in water. The encapsulated PBI dyes form a parallel stacked dimer, exhibiting characteristic absorption and emission bands. In addition, the encapsulated GNS are composed of few-layer graphene sheets with an average lateral size of ∼7 nm, as confirmed by Raman spectroscopy. The resultant, aqueous host–guest complexes are stable even after three weeks in water under ambient conditions.

中文翻译：

带有并五苯弯曲面板的芳香胶束：bi双酰亚胺染料和石墨烯纳米片的封装。

为了开发一类新的芳香族胶束，我们通过狄尔斯-阿尔德反应合成了并五苯并苯的两亲分子。带有两个三甲基铵系链的两亲物在室温下于水中组装成球形芳香胶束，平均芯直径为1.5 nm。新型芳香胶束有效地将encapsulate双酰亚胺（PBI）染料和石墨烯纳米片（GNS）封装在水中。包封的PBI染料形成平行堆积的二聚体，表现出特征吸收和发射带。此外，封装的GNS由几层石墨烯片组成，平均横向尺寸约为7 nm，这是通过拉曼光谱法证实的。所得的水性宿主-客体复合物即使在环境条件下于水中放置三周后也能保持稳定。

更新日期：2020-07-08

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