Chiral Nanotubes Self-Assembled from Discrete Non-Covalent Macrocycles

2021 ◽  
Author(s):  
Paula Blue Chamorro ◽  
Fatima Aparicio
Keyword(s):  
The Other ◽  
Self Assembled ◽  
Chiral Nanotubes ◽  
Helical Folding

Many strategies have been used to construct supramolecular hollow tubes, including helical folding of oligomers, bundling of rod-like structures, rolling-up of sheets and stacking of covalent cycles. On the other...

Self-Assembled Ultralong Chiral Nanotubes and Tuning of Their Chirality Through the Mixing of Enantiomeric Components

2010 ◽  
Vol 16 (27) ◽  
pp. 8034-8040 ◽  
Author(s):  
Xuefeng Zhu ◽  
Yuangang Li ◽  
Pengfei Duan ◽  
Minghua Liu
Keyword(s):  
Self Assembled ◽  
Chiral Nanotubes

Large Chiral Nanotubes Self-Assembled by DNA Bricks

2019 ◽  
Vol 141 (50) ◽  
pp. 19524-19528 ◽  
Author(s):  
Sha Sun ◽  
Yuxuan Yang ◽  
Dongmin Li ◽  
Jin Zhu
Keyword(s):  
Self Assembled ◽  
Chiral Nanotubes

Optical Detection of the Charging of InAs Quantum Dots with Different Backgate Configurations

2002 ◽  
Vol 737 ◽  
Author(s):  
B. Su ◽  
L. Karsten ◽  
C. Schüller ◽  
D. Heitmann ◽  
A. A. Zhukov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Detection ◽  
The Other ◽  
Inas Quantum Dots ◽  
Hole Capture ◽  
Self Assembled ◽  
Electron Occupation

ABSTRACTWe investigate self-assembled InAs quantum dots by photoluminescence (PL) and capacitance spectroscopies. By employing specially designed backelectrode configurations, we can control the number of electrons, which are confined in the quantum dots. With PL experiments we study the dependence of the s-s transition on the electron occupation of the quantum dots. We observe a characteristic redshift of the s-s transition when the s-shell is filled with electrons. However, if the p-shell of the quantum dots starts to fill, the samples with different backelectrode configurations show a different behavior. In one type of samples, the signal stays redshifted, while in the other it blueshifts again. The effect can be explained by different hole capture processes in both types of samples.

Helical Folding of Alkanes in a Self-Assembled, Cylindrical Capsule

2004 ◽  
Vol 126 (41) ◽  
pp. 13512-13518 ◽  
Author(s):  
Alessandro Scarso ◽  
Laurent Trembleau ◽  
Julius Rebek
Keyword(s):  
Self Assembled ◽  
Helical Folding

Growth of SiOx Nanowires on Self-Assembled Hexagonal Au Particle Networks

2004 ◽  
Vol 818 ◽  
Author(s):  
Tian Fu Chiang ◽  
Shao Liang Cheng ◽  
Lih Juann Chen
Keyword(s):  
Deposition Process ◽  
Vapor Transport ◽  
The Other ◽  
Si Substrate ◽  
Other Hand ◽  
Self Assembled ◽  
The Difference ◽  
Vapor Transport Deposition

AbstractSelf-assembled hexagonal networks with discrete Au particles on Al2O3 (00.1) and Si (111) have been synthesized. SiOx nanowires were grown on individual Au particles using a vapor transport deposition process. The growth of SiOx nanowires was found to cover completely the surface of Au particles on Al2O3 (00.1). On the other hand, the SiOx nanowires were grown selectively on Au particles on Si (111). Interaction of Au and Si substrate is invoked to explain the difference.

The preparation and tribological characteristics of a phosphorylated 3-aminopropyltriethoxysilane self-assembled nanometre film

2009 ◽  
Vol 223 (7) ◽  
pp. 1727-1732
Author(s):  
J Li ◽  
X H Sheng
Keyword(s):  
Thin Films ◽  
Silicon Substrate ◽  
The Other ◽  
Chemical Compositions ◽  
Self Assembled Monolayer ◽  
X Ray ◽  
Force Microscopy ◽  
Self Assembling ◽  
Atomic Force ◽  
Self Assembled

Thin films deposited on a phosphonate 3-aminopropyltriethoxysilane (APTES) self- assembled monolayer (SAM) were prepared on a hydroxylated silicon substrate by self-assembling. The chemical compositions and the chemical state of the film elements were determined by X-ray photoelectron spectrometry. The thickness of the films was determined with an ellipsometer, while the morphologies and nanotribological properties of the samples were analysed by atomic force microscopy. As a result, the target film was obtained. It was also found that the thin films showed the lowest friction and adhesion, followed by APTES—SAM and phosphorylated APTES—SAM, while the silicon substrate showed the highest friction and adhesion. Microscale scratch/wear studies clearly showed that thin films were much more scratch/wear resistant than the other samples.

Enantioselective helical folding inside a self-assembled, cylindrical capsule

2010 ◽  
Vol 46 (10) ◽  
pp. 1625 ◽  
Author(s):  
Carsten Siering ◽  
Jakob Toräng ◽  
Holger Kruse ◽  
Stefan Grimme ◽  
Siegfried R. Waldvogel
Keyword(s):  
Self Assembled ◽  
Helical Folding

scholarly journals Superlattices are Greener on the Other Side: How Light Transforms Self-Assembled Mixed Halide Perovskite Nanocrystals

2020 ◽  
Vol 5 (5) ◽  
pp. 1465-1473 ◽  
Author(s):  
Michael C. Brennan ◽  
Stefano Toso ◽  
Ilia M. Pavlovetc ◽  
Maksym Zhukovskyi ◽  
Sergio Marras ◽  
...  
Keyword(s):  
The Other ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Self Assembled

Stromatoporoids from the Famennian (Devonian) Wabamun Formation, Normandville oilfield, north–central Alberta, Canada

1988 ◽  
Vol 62 (03) ◽  
pp. 411-419 ◽  
Author(s):  
Colin W. Stearn
Keyword(s):  
Patch Reef ◽  
Abundant Species ◽  
The Other ◽  
North Central ◽  
Biotic Crisis

Stromatoporoids are the principal framebuilding organisms in the patch reef that is part of the reservoir of the Normandville field. The reef is 10 m thick and 1.5 km2in area and demonstrates that stromatoporoids retained their ability to build reefal edifices into Famennian time despite the biotic crisis at the close of Frasnian time. The fauna is dominated by labechiids but includes three non-labechiid species. The most abundant species isStylostroma sinense(Dong) butLabechia palliseriStearn is also common. Both these species are highly variable and are described in terms of multiple phases that occur in a single skeleton. The other species described areClathrostromacf.C. jukkenseYavorsky,Gerronostromasp. (a columnar species), andStromatoporasp. The fauna belongs in Famennian/Strunian assemblage 2 as defined by Stearn et al. (1988).

D. The Line Spectrum of Pulsating Variable Stars

1967 ◽  
Vol 28 ◽  
pp. 207-244
Author(s):  
R. P. Kraft
Keyword(s):  
Variable Stars ◽  
The Other ◽  
Line Spectrum ◽  
Afternoon Session ◽  
Empirical Information ◽  
Pulsating Variable Stars ◽  
Almost Continuous ◽  
Informal Approach

(Ed. note:Encouraged by the success of the more informal approach in Christy's presentation, we tried an even more extreme experiment in this session, I-D. In essence, Kraft held the floor continuously all morning, and for the hour and a half afternoon session, serving as a combined Summary-Introductory speaker and a marathon-moderator of a running discussion on the line spectrum of cepheids. There was almost continuous interruption of his presentation; and most points raised from the floor were followed through in detail, no matter how digressive to the main presentation. This approach turned out to be much too extreme. It is wearing on the speaker, and the other members of the symposium feel more like an audience and less like participants in a dissective discussion. Because Kraft presented a compendious collection of empirical information, and, based on it, an exceedingly novel series of suggestions on the cepheid problem, these defects were probably aggravated by the first and alleviated by the second. I am much indebted to Kraft for working with me on a preliminary editing, to try to delete the side-excursions and to retain coherence about the main points. As usual, however, all responsibility for defects in final editing is wholly my own.)

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