Precise Macroscopic Supramolecular Assembly by Combining Spontaneous Locomotion Driven by the Marangoni Effect and Molecular Recognition

2015 ◽  
Vol 127 (31) ◽  
pp. 9080-9084 ◽  
Author(s):  
Meng Xiao ◽  
Yiming Xian ◽  
Feng Shi
Keyword(s):  
Molecular Recognition ◽  
Supramolecular Assembly ◽  
Marangoni Effect

The molecular recognition controlled stereomutation cycle in a dynamic helical assembly

2015 ◽  
Vol 13 (39) ◽  
pp. 9938-9942 ◽  
Author(s):  
Mohit Kumar ◽  
Madugula Drona Reddy ◽  
Ananya Mishra ◽  
Subi J. George
Keyword(s):  
Molecular Recognition ◽  
Supramolecular Assembly ◽  
Competitive Binding ◽  
Perylene Bisimide

Perylene bisimide functionalized with a phosphate recognition unit displays competitive binding induced unprecedented control over the helix mutation cycle in a dynamic supramolecular assembly.

Hydrogen bonded supramolecular structures: a further insight into the diamine-diol recognition and self-assembly

2000 ◽  
Vol 78 (6) ◽  
pp. 723-731 ◽  
Author(s):  
Stefano Roelens ◽  
Paolo Dapporto ◽  
Paola Paoli
Keyword(s):  
Molecular Recognition ◽  
Gas Phase ◽  
Self Assembly ◽  
Supramolecular Assembly ◽  
Supramolecular Structures ◽  
Unique Role ◽  
X Ray ◽  
Molecular Code ◽  
Insight Into

A new H-bonded supramolecular assembly of the diamine-diol family has been obtained from (1R,2R)-1,2-diaminocyclohexane (DAC) and (S)-1-phenyl-1,2-ethanediol (PED). The structure was characterized by single-crystal X-ray analysis and showed the typical architecture of DAC based assemblies, consisting of a three-stranded helicate coiling around a H-bonded core, with a predictable helicity sense determined by the configuration of DAC. The new assembly, while reconfirming the unique role of DAC as a powerful assembler of supramolecular structures, demonstrated that the C2 symmetry of diol partners employed so far is not essential for assembling helicates, although chirality is. In the case of the adduct between (1R,2R)-1,2-diaminocyclohexane and (2R,3R)-2,3-butanediol, molecular recognition and self-assembly have been shown to take place even in the absence of solvent, in the gas phase, where long crystals were formed by spontaneous organized aggregation of diamine-diol units. A thorough analysis of the results from the present and previous investigations has lead to a deeper understanding of the key features of the diamine-diol molecular code and of the requirements for recognition and assembly.Key words: supramolecular, hydrogen bonding, molecular recognition, self-assembly, diamines, diols.

Efficient molecular recognition based on nonspecific van der Waals interaction at the solid/liquid interface

2014 ◽  
Vol 50 (80) ◽  
pp. 11946-11949 ◽  
Author(s):  
Lili Cao ◽  
Lirong Xu ◽  
Dahui Zhao ◽  
Kazukuni Tahara ◽  
Yoshito Tobe ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Van Der Waals ◽  
Supramolecular Assembly ◽  
Building Blocks ◽  
Liquid Interface ◽  
Van Der Waals Interaction ◽  
Van Der Waals Interactions ◽  
General Strategy ◽  
Solid Liquid Interface ◽  
Solid Liquid

A surprising recognition phenomenon based on van der Waals interactions was observed, which proves that the design of the supramolecular assembly from its building blocks represents a highly promising and general strategy.

An Elaborate Supramolecular Assembly for a Smart Nanodevice for Ratiometric Molecular Recognition and Logic Gates

2016 ◽  
Vol 22 (24) ◽  
pp. 8339-8345 ◽  
Author(s):  
Yu-Jie Xie ◽  
Wen-Yu Wu ◽  
Hao Chen ◽  
Xiang Li ◽  
Hao-Li Zhang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Supramolecular Assembly ◽  
Logic Gates

The 3-Dimensional Molecular Structure of the Actin Filament Revisited

1985 ◽  
Vol 43 ◽  
pp. 480-481
Author(s):  
U. Aebi ◽  
R. Millonig ◽  
H. Salvo
Keyword(s):  
Actin Filament ◽  
Supramolecular Assembly ◽  
Specimen Preparation ◽  
X Ray Diffraction ◽  
Single Filament ◽  
X Ray ◽  
3 Dimensional ◽  
Filament Diameter ◽  
Preparation Conditions ◽  
Apparent Diameter

To date, most 3-D reconstructions of undecorated actin filaments have been obtained from actin filament paracrystal data (for refs, see 1,2). However, due to the fact that (a) the paracrystals may be several filament layers thick, and (b) adjacent filaments may sustantially interdigitate, these reconstructions may be subject to significant artifacts. None of these reconstructions has permitted unambiguous tracing or orientation of the actin subunits within the filament. Furthermore, measured values for the maximal filament diameter both determined by EM and by X-ray diffraction analysis, vary between 6 and 10 nm. Obviously, the apparent diameter of the actin filament revealed in the EM will critically depend on specimen preparation, since it is a rather flexible supramolecular assembly which can easily be bent or distorted. To resolve some of these ambiguities, we have explored specimen preparation conditions which may preserve single filaments sufficiently straight and helically ordered to be suitable for single filament 3-D reconstructions, possibly revealing molecular detail.

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