Three-dimensional graphene-based aerogels prepared by a self-assembly process and its excellent catalytic and absorbing performance

2013 ◽  
Vol 1 (26) ◽  
pp. 7612 ◽  
Author(s):  
Tao Wu ◽  
Mingxi Chen ◽  
Lei Zhang ◽  
Xiaoyang Xu ◽  
Yu Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Three Dimensional ◽  
Assembly Process

Arginine-assisted synthesis of palladium nanochain networks and their enhanced electrocatalytic activity for borohydride oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 18111-18115 ◽  
Author(s):  
Geng-Tao Fu ◽  
Rui Wu ◽  
Chang Liu ◽  
Jun Lin ◽  
Dong-Mei Sun ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Three Dimensional ◽  
Assembly Process ◽  
Electrocatalytic Performance ◽  
Borohydride Oxidation

Three-dimensional Pd nanochain networks (Pd-NCNs) were prepared by an arginine-assisted self-assembly process, exhibiting excellent electrocatalytic performance towards the borohydride oxidation reaction.

Metal-mediated multiporphyrin functional assemblies

2009 ◽  
Vol 13 (04n05) ◽  
pp. 481-493 ◽  
Author(s):  
Laura P. Hernández ◽  
Almudena González-Álvarez ◽  
Ana I. Oliva ◽  
Pablo Ballester
Keyword(s):  
Research Group ◽  
Self Assembly ◽  
Three Dimensional ◽  
Great Majority ◽  
Supramolecular Structures ◽  
Assembly Process ◽  
Thermodynamic Characterization ◽  
Closed Loops

During the last ten years, our research group has been applying metal-mediated self-assembly processes to the construction of multiporphyrin functional assemblies. The construction of well-defined and discrete supramolecular structures resulting from self-assembly requires the use of multiple and separated connections operating in one or more closed loops. Consequently, the great majority of the multiporphyrin assemblies that we have prepared are of cyclic nature. We have placed special emphasis not only on the characterization in solution of the formed assemblies but also on the thermodynamic characterization of the assembly process and in the assessment of cooperativity. Finally, we also present examples in which functionality has been derived from the three-dimensional structures of multicomponent assemblies.

Design and chance in the self-assembly of macromolecules

2007 ◽  
Vol 35 (3) ◽  
pp. 502-507 ◽  
Author(s):  
J.A.R. Worrall ◽  
M. Górna ◽  
X.Y. Pei ◽  
D.R. Spring ◽  
R.L. Nicholson ◽  
...  
Keyword(s):  
Amino Acids ◽  
Self Assembly ◽  
Synthetic Detergent ◽  
Stable Equilibrium ◽  
Three Dimensional ◽  
The Self ◽  
Biological Molecules ◽  
Assembly Process ◽  
Naturally Occurring ◽  
Polymeric Assemblies

The principles of self-assembly are described for naturally occurring macromolecules and for complex assemblies formed from simple synthetic constituents. Many biological molecules owe their function and specificity to their three-dimensional folds, and, in many cases, these folds are specified entirely by the sequence of the constituent amino acids or nucleic acids, and without the requirement for additional machinery to guide the formation of the structure. Thus sequence may often be sufficient to guide the assembly process, starting from denatured components having little or no folds, to the completion state with the stable, equilibrium fold that encompasses functional activity. Self-assembly of homopolymeric structures does not necessarily preserve symmetry, and some polymeric assemblies are organized so that their chemically identical subunits pack stably in geometrically non-equivalent ways. Self-assembly can also involve scaffolds that lack structure, as seen in the multi-enzyme assembly, the degradosome. The stable self-assembly of lipids into dynamic membraneous sheets is also described, and an example is shown in which a synthetic detergent can assemble into membrane layers.

Scalable self‐assembly process for the fabrication of sub‐millimetre three‐dimensional cylindrical tubes

2016 ◽  
Vol 11 (1) ◽  
pp. 4-8
Author(s):  
Mustafa Emre Karagozler ◽  
Seth Copen Goldstein ◽  
David S. Ricketts
Keyword(s):  
Self Assembly ◽  
Three Dimensional ◽  
Assembly Process ◽  
Cylindrical Tubes

Impact of Self-Assembly Process Errors on Thermoelectric Performance

2012 ◽  
Vol 134 (3) ◽  
Author(s):  
Nathan B. Crane ◽  
Patrick McKnight
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Three Dimensional ◽  
Assembly Process ◽  
Thermoelectric Devices ◽  
One Dimensional ◽  
Assembly Accuracy ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
The Impact

Thermoelectric devices have many scaling benefits that motivate miniaturization, but assembly of small components is a significant challenge. Self-assembly provides a promising method for integrating very small elements. However, it introduces the possibility of stochastic errors with significant performance impacts. This work presents a method to estimate the impact of these errors on system performance. Equivalent thermoelectric properties are developed that adjust for the effect of missing elements in one-dimensional thermoelectric models. The models show that the thermoelectric devices can accommodate significant self-assembly errors by incorporation of redundant electrical paths. The model shows nearly linear decline in effective power factor with declining assembly accuracy, but the effective figure of merit (ZT) is relatively insensitive to assembly errors. Predictions from the modified one-dimensional model agree well with three-dimensional finite element simulations. This work identifies two basic strategies for how devices such as thermoelectric could be designed for self-assembly and demonstrates that it is possible to achieve high performance despite self-assembly process errors.

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