Supramolecular Helices via Self-Assembly of 8-Oxoguanosines

In the 21st century, soft materials will become more important as functional materials because of their dynamic nature. Although soft materials are not as highly durable as hard materials, such as metals, ceramics, and engineering plastics, they can respond well to stimuli and the environment. The introduction of order into soft materials induces new dynamic functions. Liquid crystals are ordered soft materials consisting of self-organized molecules and can potentially be used as new functional materials for electron, ion, or molecular transporting, sensory, catalytic, optical, and bio-active materials. For this functionalization, unconventional materials design is required. Herein, we describe new approaches to the functionalization of liquid crystals and show how the design of liquid crystals formed by supramolecular assembly and nano-segregation leads to the formation of a variety of new self-organized functional materials.

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“…[79][80][81] Moreover, supramolecular chiral micellar cubic phases have been found to form by segmentation of the chiral columns.…”

Section: Liquid Crystalsmentioning

confidence: 99%

Functional Liquid‐Crystalline Assemblies: Self‐Organized Soft Materials

2005

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“…Die Wechselwirkungen zwischen den wasserstoffverbrückten Scheiben und den Ionen fixieren die supramolekularen chiralen Strukturen in der kolumnaren Phase. [79][80][81] Außerdem wurden supramolekulare chirale micellar kubische Phasen gefunden, die aus kurzen chiralen Säulen bestehen. Zusätzlich zu Wasserstoffbrücken können auch Ionen- [82,83] und Charge-Transfer-Wechselwirkungen [84][85][86][87][88][89] sowie Halogenbrücken [90] zu flüssigkristallinen Molekülaggregaten führen.…”

Section: Besondere Eigenschaften Supramolekularer Flüssigkristalleunclassified

Funktionelle flüssigkristalline Aggregate: selbstorganisierte weiche Materialien

2005

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Dynamische weiche Materialien werden im 21. Jahrhundert an Bedeutung gewinnen. Zwar sind diese Funktionsmaterialien nicht so beständig wie Metalle, Keramiken oder Plastik, dafür reagieren sie aber gut auf externe Reize. Geordnete weiche Materialien können dynamische Funktionen erfüllen. Flüssigkristalle aus selbstorganisierten Molekülen sind ein Beispiel hierfür: Sie eignen sich möglicherweise zum Elektronen‐, Ionen‐ oder Stofftransport sowie als sensorisch, katalytisch, optisch oder biologisch aktive Materialien. Um diese Funktionen auszuschöpfen, benötigt man unkonventionelle Materialentwürfe. Hier beschreiben wir aktuelle Ansätze zur Funktionalisierung von Flüssigkristallen und zeigen, wie das Design von Flüssigkristallen durch supramolekulare Aggregation und Nanophasentrennung zu einer Vielfalt selbstorganisierter Funktionsmaterialien führt.

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“…[37] Thus, both 8-oxoG 9 and the corresponding 2-deamino analogue (8-oxoI 10) form hydrogenbonded helices in organic solvents (Figure 8). This selfassembly pattern was quite different from the hydrogenbonded motif formed by guanosine derivatives.…”

Section: Supramolecular Organisation Of Guanosine Derivativesmentioning

confidence: 99%

Guanosine Hydrogen‐Bonded Scaffolds: A New Way to Control the Bottom‐Up Realisation of Well‐Defined Nanoarchitectures

Lena¹,

Masiero²,

Pieraccini³

et al. 2009

Chemistry A European J

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136

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Over the last two decades, guanosine-related molecules have been of interest in different areas, ranging from structural biology to medicinal chemistry, supramolecular chemistry and nanotechnology. The guanine base is a multiple hydrogen-bonding unit, capable also of binding to cations, and fits very well with contemporary studies in supramolecular chemistry, self-assembly and non-covalent synthesis. This Concepts article, after reviewing on the diversification of self-organised assemblies from guanosine-based low-molecular-weight molecules, will mainly focus on the use of guanine moiety as a potential scaffold for designing functional materials of tailored physical properties.

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Supramolecular Helices via Self-Assembly of 8-Oxoguanosines

Cited by 125 publications

References 33 publications

Functional Liquid‐Crystalline Assemblies: Self‐Organized Soft Materials

Functional Liquid‐Crystalline Assemblies: Self‐Organized Soft Materials

Funktionelle flüssigkristalline Aggregate: selbstorganisierte weiche Materialien

Guanosine Hydrogen‐Bonded Scaffolds: A New Way to Control the Bottom‐Up Realisation of Well‐Defined Nanoarchitectures

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