Electrostatic interactions versus van der Waals interactions in the self-assembly of dispersed nanodiamonds

2012 ◽  
Vol 22 (32) ◽  
pp. 16416 ◽  
Author(s):  
Qian Xu ◽  
Xiang Zhao
Keyword(s):  
Self Assembly ◽  
Electrostatic Interactions ◽  
Van Der Waals ◽  
The Self ◽  
Van Der Waals Interactions

Van der Waals interactions in the self-assembly of 5-amino[6]helicene on Cu(100) and Au(111)

2014 ◽  
Vol 50 (90) ◽  
pp. 13907-13909 ◽  
Author(s):  
Hugo Ascolani ◽  
Maarten W. van der Meijden ◽  
Lucila J. Cristina ◽  
J. Esteban Gayone ◽  
Richard M. Kellogg ◽  
...  
Keyword(s):  
Self Assembly ◽  
Van Der Waals ◽  
The Self ◽  
Van Der Waals Interactions ◽  
Amino Group

No H bonding for the amino group: van der Waals interactions guide the self-assembly of an aminohelicene on Cu(100) and Au(111).

Research on the self-assembly of exfoliated perovskite nanosheets (LaNb2O7−) and cobalt porphyrin utilized for the electrocatalytic oxidation of ascorbic acid

RSC Advances ◽  
2016 ◽  
Vol 6 (52) ◽  
pp. 46388-46393 ◽  
Author(s):  
Binbin Pan ◽  
Wenlei Zhao ◽  
Xiaobo Zhang ◽  
Jinpeng Li ◽  
Jiasheng Xu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Electrocatalytic Oxidation ◽  
Hybrid Film ◽  
The Self ◽  
Cobalt Porphyrin

A sandwich-structured nanocomposite of LaNb2O7/CoTMPyP was fabricated via electrostatic interactions between LaNb2O7− nanosheets and cobalt porphyrin cations, and the obtained hybrid film exhibited excellent electrocatalytic activities toward AA.

Polymorphism of Trimeric Perfluoro-ortho-phenylene Mercury, [Hg(o-C6F4)]3

2004 ◽  
Vol 59 (11-12) ◽  
pp. 1483-1487 ◽  
Author(s):  
Mason R. Haneline ◽  
François P. Gabbaï
Keyword(s):  
Single Crystal ◽  
Electrostatic Interactions ◽  
Van Der Waals ◽  
Relativistic Effects ◽  
Van Der Waals Interactions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Π Interactions

Three new modifications of trimeric perfluoro-ortho-phenylene mercury (2) have been investigated by single crystal X-ray diffraction. In each of these modifications, the molecules of 2 form extended stacks. Within each stack, the successive molecules are parallel and separated by approximately 3.3 - 3.4 Å. The packing observed in the different structures is rationalized on the basis of secondary mercury-π interactions, mercuriophilic interactions and electrostatic interactions. Altogether, little preference is given for one particular type of interaction. The packing appears to be dominated by non-directional van der Waals interactions between molecules of 2 which are largely aromatic and whose overall polarizability is magnified by relativistic effects at the mercury(II) centers.

scholarly journals Controlling the Self-Assembly of Biomolecules into Functional Nanomaterials through Internal Interactions and External Stimulations: A Review

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 285 ◽  
Author(s):  
Li Wang ◽  
Coucong Gong ◽  
Xinzhu Yuan ◽  
Gang Wei
Keyword(s):  
Self Assembly ◽  
Electrostatic Interactions ◽  
Materials Science ◽  
Hydrophobic Interactions ◽  
The Self ◽  
Functional Nanomaterials ◽  
Light Stimulation ◽  
Dna Base ◽  
Wide Range ◽  
Structure And Functions

Biomolecular self-assembly provides a facile way to synthesize functional nanomaterials. Due to the unique structure and functions of biomolecules, the created biological nanomaterials via biomolecular self-assembly have a wide range of applications, from materials science to biomedical engineering, tissue engineering, nanotechnology, and analytical science. In this review, we present recent advances in the synthesis of biological nanomaterials by controlling the biomolecular self-assembly from adjusting internal interactions and external stimulations. The self-assembly mechanisms of biomolecules (DNA, protein, peptide, virus, enzyme, metabolites, lipid, cholesterol, and others) related to various internal interactions, including hydrogen bonds, electrostatic interactions, hydrophobic interactions, π–π stacking, DNA base pairing, and ligand–receptor binding, are discussed by analyzing some recent studies. In addition, some strategies for promoting biomolecular self-assembly via external stimulations, such as adjusting the solution conditions (pH, temperature, ionic strength), adding organics, nanoparticles, or enzymes, and applying external light stimulation to the self-assembly systems, are demonstrated. We hope that this overview will be helpful for readers to understand the self-assembly mechanisms and strategies of biomolecules and to design and develop new biological nanostructures or nanomaterials for desired applications.

scholarly journals Unveiling the Key Templates in the Self-Assembly of Gigantic Molybdenum Blue Wheels

2018 ◽  
Author(s):  
Weimin Xuan ◽  
Robert Pow ◽  
Qi Zheng, ◽  
Nancy Watfa ◽  
De-Liang Long ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrostatic Interactions ◽  
Structural Evolution ◽  
Functional Materials ◽  
Building Blocks ◽  
Underlying Mechanism ◽  
The Self ◽  
Supramolecular Systems ◽  
Structure Directing Agent ◽  
Molybdenum Blue

Template synthesis is a powerful and useful approach to build a variety of functional materials and complicated supramolecular systems. Systematic study on how templates structurally evolve from basic building blocks and then affect the templated self-assembly is critical to understand the underlying mechanism and gain more guidance for designed assembly but remains challenging. Here we describe the templated self-assembly of a series of gigantic Mo Blue (MB) clusters 1-4 using L-ornithine as structure-directing agent. L-ornithine is essential for the formation of such kind of template⊂host assemblies by providing directional forces of hydrogen bonding and electrostatic interactions. Based on the structural relationship between encapsulated templates of {Mo8} (1), {Mo17} (2) and {Mo36} (4), a plausible pathway of the structural evolution of templates is proposed, thus giving more insight on the templated self-assembly of Mo Blue clusters.

scholarly journals Mesoscale Assembly of Bisteroidal Esters from Terephthalic Acid

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1213 ◽  
Author(s):  
Gabriel Guerrero-Luna ◽  
María Guadalupe Hernández-Linares ◽  
Sylvain Bernès ◽  
Alan Carrasco-Carballo ◽  
Diana Montalvo-Guerrero ◽  
...  
Keyword(s):  
Self Assembly ◽  
Terephthalic Acid ◽  
Van Der Waals ◽  
Solvent System ◽  
Van Der Waals Interactions ◽  
Show Evidence ◽  
Non Covalent Interactions ◽  
Solvent Systems ◽  
High Yields ◽  
Covalent Interactions

A new series of bisteroidal esters was synthesized using a spacer group, sterols and sapogenins as substrates. Steroidal dimers were prepared in high yields employing diesters of terephthalic acid as linkages at the 3β, 3′β steroidal positions. In all attempts to crystallize bisteroids, it was observed that the compounds tended to self-organize in solution, which was detected when employing various solvent systems. The non-covalent interactions (van der Waals) of the steroidal moieties of this series of symmetrical bisteroids, the polarity of the solvents systems, and the different solubilities of the bisteroid aggregates, indeed induce the molecules to self-assemble into supramolecular structures with well-defined organization. Our results show that the self-assembled structures for the bisteroidal derivatives depend on the solvent system used: with hexane/EtOAc, membrane-shaped structures were obtained, while pure EtOAc afforded strand-shaped arrangements. In the CHCl3/CH3OH system, thin strands were formed, since van der Waals interactions are lowered in this system, as a consequence of the increased solubility of the bisteroids in CHCl3. Based on the characterization by SEM and XRD, we show evidence that the phenomenon of self-assembly of bisteroids occurs presenting different morphologies depending on the solvent used. The new steroidal dimer derivatives were characterized by NMR, TGA, DSC, SEM, and XRD. Finally, the molecular structure of one bisteroid was confirmed by single-crystal X-ray analysis.

Impact of Electrostatic Interactions on the Self-Assembly of Charge-Neutral Block Copolyelectrolytes

2020 ◽  
Vol 53 (2) ◽  
pp. 548-557
Author(s):  
Sebastian T. Russell ◽  
Ramya Raghunathan ◽  
Andrew M. Jimenez ◽  
Kai Zhang ◽  
Spencer D. Brucks ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrostatic Interactions ◽  
The Self
Sign in / Sign up

Export Citation Format

Share Document