Polymorphism in carbohydrate self-assembly at surfaces: STM imaging and theoretical modelling of trehalose on Cu(100)

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Polymorphism in carbohydrate self-assembly at surfaces: STM imaging and theoretical modelling of trehalose on Cu(100)

机译：碳水化合物自组装在表面的多态性：STM成像和Cu（100）海藻糖的理论建模

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Saccharides, also commonly known as carbohydrates, are ubiquitous biomolecules, but little is known about their interaction with surfaces. Soft-landing electrospray ion beam deposition in conjunction with high-resolution imaging by scanning tunneling microscopy now provides access to the molecular details of the surface assembly of this important class of bio-molecules. Among carbohydrates, the disaccharide trehalose is outstanding as it enables strong anhydrobiotic effects in biosystems. This ability is closely related to the observed polymorphism. In this work, we explore the self-assembly of trehalose on the Cu(100) surface. Molecular imaging reveals the details of the assembly properties in this reduced symmetry environment. Already at room temperature, we observe a variety of self-assembled motifs, in contrast to other disaccharides like e.g. sucrose. Using a multistage modeling approach, we rationalize the conformation of trehalose on the copper surface as well as the intermolecular interactions and the self-assembly behavior.

机译：糖类，也常见称为碳水化合物，是普遍存在的生物分子，但是对它们与表面的相互作用很少。通过扫描隧道显微镜的高分辨率成像与高分辨率成像进行软落水电喷雾离子束沉积现在提供对该重要生物分子的表面组件的分子细节的访问。在碳水化合物中，二糖海藻糖卓越，因为它能够在生物系统中实现强嗜水生物学作用。这种能力与观察到的多态性密切相关。在这项工作中，我们探索Cu（100）表面上海藻糖的自组装。分子成像揭示了该减少对称环境中的组装性质的细节。在室温下，我们观察各种自组装的图案，与其他二糖相比，如例如，蔗糖。使用多级模型方法，我们将海藻糖的构象合理化在铜表面上的构象以及分子间相互作用和自组装行为。

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《RSC Advances》 |2019年第61期|共7页
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1. Polymorphism in carbohydrate self-assembly at surfaces: STM imaging and theoretical modelling of trehalose on Cu(100) [J] . RSC Advances . 2019,第61期

机译：碳水化合物自组装在表面的多态性：STM成像和Cu（100）海藻糖的理论建模
2. Carbohydrate Self-Assembly at Surfaces: STM Imaging of Sucrose Conformation and Ordering on Cu(100) [J] . Abb Sabine, Tarrat Nathalie, Cortes Juan, Angewandte Chemie . 2019,第25期

机译：碳水化合物自组装在表面：STM成像的蔗糖构象和Cu（100）的排序
3. Asymmetry effects in atomically resolved STM images of Cu(014)-O and W(100)-O surfaces measured with MnNi tips [J] . S. Murphy, K. Radican, I. V. Shvets, Physical review. B, Condensed Matter And Materials Physics . 2007,第24期

机译：用MnNi尖端测量的Cu（014）-O和W（100）-O表面的原子分辨STM图像中的不对称效应
4. Theoretical Studies Of Positron States And Annihilation Characteristics At The Oxidized Cu(100) Surface [C] . N. G. Fazleev, A. H. Weiss International Conference Application of Accelerators in Research and Industry . 2013

机译：氧化Cu（100）表面上正电子状态和湮灭特性的理论研究
5. Theoretical investigations of the structure and reactivity of the silicon(100) and germanium(100) surfaces: A study with density functional theory. [D] . Foraker, Andrew C. 2001

机译：硅（100）和锗（100）表面的结构和反应性的理论研究：使用密度泛函理论的研究。
6. Self-assembly directed one-step synthesis of 4radialene on Cu(100) surfaces [O] . Qing Li, Jianzhi Gao, Youyong Li, -1

机译：在Cu（100）表面上进行4芳烃的自组装定向一步合成
7. Polymorphism in carbohydrate self-assembly at surfaces: STM imaging and theoretical modelling of trehalose on Cu(100) [O] . Sabine Abb, Nathalie Tarrat, Juan Cortés, 2019

机译：碳水化合物自组装在表面的多态性：STM成像和Cu（100）海藻糖的理论建模
8. Growth of Pt/Cu(100): An Atomistic Modeling Comparison with the Pd/Cu(100) Surface Alloy [R] . Demarco, G. , Garces, J. E. , Bozzolo, G. 2002

机译：pt / Cu（100）的生长：与pd / Cu（100）表面合金的原子建模比较

Polymorphism in carbohydrate self-assembly at surfaces: STM imaging and theoretical modelling of trehalose on Cu(100)

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