Dimensional control of supramolecular assemblies of diacetylene-derived peptide gemini amphiphile: from spherical micelles to foamlike networks†,Soft Matter

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Dimensional control of supramolecular assemblies of diacetylene-derived peptide gemini amphiphile: from spherical micelles to foamlike networks†
Soft Matter ( IF 2.9 ) Pub Date : 2018-05-16 00:00:00 , DOI: 10.1039/c8sm00512e
Hao Jiang _{1,

2,

3,

4} , Martin Ehlers _{1,

2,

3,

4} , Xiao-yu Hu _{1,

2,

3,

4,

5} , Elio Zellermann _{1,

2,

3,

4} , Carsten Schmuck _{1,

2,

3,

4}

Affiliation

Peptide amphiphiles capable of assembling into multidimensional nanostructures have attracted much attention over the past decade due to their potential applications in materials science. Herein, a novel diacetylene-derived peptide gemini amphiphile with a fluorenylmethyloxycarbonyl (Fmoc) group at the N-terminus is reported to hierarchically assemble into spherical micelles, one-dimensional nanorods, two-dimensional foamlike networks and lamellae. Solvent polarity shows a remarkable effect on the self-assembled structures by changing the balance of four weak noncovalent interactions (hydrogen-bonding, π–π stacking, hydrophobic interaction, and electrostatic repulsion). We also show the time-evolution not only from spherical micelles to helical nanofibers in aqueous solution, but also from branched wormlike micelles to foamlike networks in methanol solution. In this work, the presence of the Fmoc group plays a key role in the self-assembly process. This work provides an efficient strategy for precise morphological control, aiding the future development in materials science.

中文翻译：

双乙炔衍生的双子肽双亲分子的超分子组装的尺寸控制：从球形微团到泡沫状网络†

能够组装成多维纳米结构的肽两亲物由于其在材料科学中的潜在应用在过去十年中引起了极大的关注。在此，据报道在N末端具有芴基甲氧基羰基（Fmoc）基团的新颖的由二乙炔衍生的肽双子两亲物分层地组装成球形胶束，一维纳米棒，二维泡沫状网络和薄片。溶剂极性通过改变四种弱的非共价相互作用（氢键，π-π堆积，疏水相互作用和静电排斥）的平衡，对自组装结构产生了显着影响。我们还显示了水溶液中从球形胶束到螺旋纳米纤维的时间演化，但也可以从分支的蠕虫状胶束到甲醇溶液中的泡沫状网络。在这项工作中，Fmoc组的存在在自组装过程中起着关键作用。这项工作为精确的形态控制提供了有效的策略，有助于材料科学的未来发展。

更新日期：2018-05-16

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