Nanoarchitectonics: a new materials horizon for nanotechnology

Ariga, Katsuhiko; Ji, Qingmin; Nakanishi, Waka; Hill, Jonathan P.; Aono, Masakazu

doi:10.1039/c5mh00012b

Cited by 281 publications

(141 citation statements)

References 64 publications

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“…In the pursuit of advanced ESSs, more attention should be paid to the correlation between material design and electrochemical performance of the materials. [174][175][176][177][178][179][180] In this respect, the recent progress presented here in the material design of spinel-type transition metal oxides with tunable shapes, porosity, sizes, and compositions will provide practical guidelines for building highly reliable and high performance energy storage materials. …”

Section: Concluding Remarks and Perspectivesmentioning

confidence: 99%

Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems

Park

Kim

et al. 2015

Phys. Chem. Chem. Phys.

154

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. (2015). Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems. Physical Chemistry Chemical Physics, 17 (46), 30963-30977. Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems AbstractTransition metal oxides possessing two kinds of metals (denoted as AxB3-xO4, which is generally defined as a spinel structure; A, B = Co, Ni, Zn, Mn, Fe, etc.), with stoichiometric or even non-stoichiometric compositions, have recently attracted great interest in electrochemical energy storage systems (ESSs). The spinel-type transition metal oxides exhibit outstanding electrochemical activity and stability, and thus, they can play a key role in realising cost-effective and environmentally friendly ESSs. Moreover, porous nanoarchitectures can offer a large number of electrochemically active sites and, at the same time, facilitate transport of charge carriers (electrons and ions) during energy storage reactions. In the design of spinel-type transition metal oxides for energy storage applications, therefore, nanostructural engineering is one of the most essential approaches to achieving high electrochemical performance in ESSs. In this perspective, we introduce spinel-type transition metal oxides with various transition metals and present recent research advances in material design of spinel-type transition metal oxides with tunable architectures (shape, porosity, and size) and compositions on the micro-and nano-scale. Furthermore, their technological applications as electrode materials for next-generation ESSs, including metal-air batteries, lithium-ion batteries, and supercapacitors, are discussed. The spinel-type transition metal oxides exhibit outstanding electrochemical activity and stability, and thus, they can play a key role in realising cost-effective and environmentally friendly ESSs. Moreover, porous nanoarchitectures can offer a large number of electrochemically active sites and, at the same time, facilitate transport of charge carriers (electrons and ions) during energy storage reactions. In the design of spinel-type transition metal oxides for energy storage applications, therefore, nanostructural engineering is one of the most essential approaches to achieving high electrochemical performance in ESSs. In this perspective, we introduce spinel-type transition metal oxides with various transition metals and present recent research advances in material design of spinel-type transition metal oxides with tunable architectures (shape, porosity, and size) and compositions on the micro-and nano-scale.Furthermore, their technological applications as electrode materials for next-generation ESSs, including metal-air batteries, lithium-ion batteries, and supercapacitors, are discussed.

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Section: Concluding Remarks and Perspectivesmentioning

confidence: 99%

Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems

Park

Kim

et al. 2015

Phys. Chem. Chem. Phys.

154

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“…Ensambles inusuales de ácidos nucleicos, nanofibras, G-cuádruple, nanoestructuras inusuales. lares/nanosistemas capaces de realizar funciones complejas integrando múltiples componentes como es en el caso de toda nuestra tecnología basada en la estrategia tradicional top-down es aún un desafío tecnológico muy importante [1,4]. Las principales limitaciones son la capacidad de diseñar sistemas que sin una inversión importante de energía o de manipulación excesiva puedan ensamblarse por sí mismos en un sistema capaz de realizar una función compleja.…”

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Nanoestructuras inusuales de ácidos nucleicos basados en ADN G-cuádruple

Méndez

2015

Av. Cienc. Ing. (Quito)

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IntroducciónLa Nanotecnología está rápidamente cambiando el paradigma de los sistemas de fabricación de una estrategia "top -down" a una estrategia "bottom-up" [1]. Estos procesos que siguen la estrategia "bottom-up" explotan el "autoensamblaje" del material involucrado. Uno de tales materiales con la habilidad de auto ensamblarse es el ADN [2,3] Unusual Nucleic acid nanostructures based on G-quadruplex DNA AbstractA nano-assembly based on non-canonical DNA structures is reported. For the nanofabrication of a DNA-based structure the self-assembly of guanine quadruplex (Hoogsteen base pairing) and doublestranded DNA (Watson-Crick base pairing) was exploited. In general, an important number of nanostructures have being build exploiting the base pairing capability of canonical double stranded DNA. There are alternative approaches for construction using other DNA elements such as G-quadruplex, Imotifs, or triplexes. As a proof of principle, we have previously reported the use of duplex DNA (short synthetic DNA oligonucleotides) with sections of miss paired sites able to mediate formation of tetramolecular sections (G-quadruplex DNA prove) in order to ensemble the components into high molecular weight structures. Gel electrophoresis as well as atomic force microscopy show the formation of nanofibers. Gel electrophoresis as well as circular dichroism gave evidence of the presence of G-quadruplex sections. From AFM we estimated that the structures lengths expand from 250 to 2,000 nm with heights from 0.45 to 4.0 nm. Here we present another example of such nanofibers. We suggest that similar methodologies can be used to build more complex nano-structures that will exploit the properties of different DNA nano-oddities into functional applications.Keywords. Unusual nucleic acid assembly, nanofibers, G-quadruplexes, nano-oddity. ResumenSe reporta la preparación de un nano-ensamble basado en estructuras de ADN no canónico. Para la nanofabricación de una estructura basada en ADN el auto ensamblaje de ADN G-cuádruple (apareamiento de bases tipo hoogsteen) y ADN de doble cadena (apareamiento de bases tipo Watson-Crick) fueron utilizados. En general, un número importante de nanoestructuras se han construido explotando la capacidad de apareamiento de bases del ADN canónico de doble cadena. Hay formas alternativas para construcción utilizando otros elementos de ADN tales como G-cuadruple, motivos I, o ADN de triple cadena. Como prueba de prinicipio, previamente hemos reportado el uso de ADN de doble cadena (oligonucleótidos de ADN sintéticos cortos) con secciones de sitios no apareados capaz de mediar la formación de secciones tetramoleculares (pruebas G-cuádruple) con la finalidad de ensamblar los componentes en estructuras de alto peso molecular. Gel electroforesis como también microscopia de fuerza atómica muestran la formación de nanofibras. La electroforesis de Gel como el dicroismo circular dan evidencia de la presencia de secciones G-cuádruple. De las imágenes de microscopía de fuerza atómica se estimó que el largo de las...

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“…The nanoscale and mesoscale ordering of the building blocks in these hybrid materials and the resultant morphological features determine their functional properties, which can be modified by exploiting the reversible and adaptive nature of noncovalent interactions 17,18 . Different strategies, including complementary interactions, molecular recognition, and templating, have been employed to create self-assembled hybrid materials 2 .…”

Section: Introductionmentioning

confidence: 99%

Hybrid materials of 1D and 2D carbon allotropes and synthetic π-systems

et al. 2018

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Self-assembled synthetic hybrid materials are an important class of artificial materials with potential applications in various fields ranging from optoelectronics to medicine. The noncovalent interactions involved in the self-assembly process offer a facile way to create hybrid materials with unique and interesting properties. In this context, selfassembled hybrid materials based on carbon nanotubes (CNTs), graphene, and graphene derivatives such as graphene oxide (GO) and reduced graphene oxide (RGO) are of particular significance. These composites are solution processable, generally exhibit enhanced electrical, mechanical, and chemical properties, and find applications in the fields of light harvesting, energy storage, optoelectronics, sensors, etc. Herein, we present a brief summary of recent developments in the area of self-assembled functional hybrid materials comprising one-dimensional (1D) or twodimensional (2D) carbon allotropes and synthetic π-systems such as aromatic molecules, gelators, and polymers.

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Nanoarchitectonics: a new materials horizon for nanotechnology

Abstract: A paradigm shift from nanotechnology to nanoarchitectonics has been proposed.

Cited by 281 publications

References 64 publications

Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems

Porous nanoarchitectures of spinel-type transition metal oxides for electrochemical energy storage systems

Nanoestructuras inusuales de ácidos nucleicos basados en ADN G-cuádruple

Hybrid materials of 1D and 2D carbon allotropes and synthetic π-systems

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