Hierarchically ordered oxides
Peidong Yang,Tao Deng,Dongyuan Zhao,Pingyun Feng,David J. Pine,Bradley F. Chmelka,George M. Whitesides,Galen D. Stucky +7 more
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TLDR
Porous silica, niobia, and titania with three-dimensional structures patterned over multiple length scales were prepared by combining micromolding, polystyrene sphere templating, and cooperative assembly of inorganic sol-gel species with amphiphilic triblock copolymers.Abstract:
Porous silica, niobia, and titania with three-dimensional structures patterned over multiple length scales were prepared by combining micromolding, polystyrene sphere templating, and cooperative assembly of inorganic sol-gel species with amphiphilic triblock copolymers. The resulting materials show hierarchical ordering over several discrete and tunable length scales ranging from 10 nanometers to several micrometers. The respective ordered structures can be independently modified by choosing different mold patterns, latex spheres, and block copolymers. The examples presented demonstrate the compositional and structural diversities that are possible with this simple approach.read more
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Hierarchisch strukturierte Nanomaterialien für die elektrochemische Energieumwandlung
TL;DR: Hierarchical Nanomaterialien eignen sich hervorragend als Elektrokatalysatoren and Trager von Elektronikatoren in Systemen fur die elektrochemische Energieumwandlung as discussed by the authors.
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Green synthesis of hierarchical copper oxide microleaf bundles using Hibiscus cannabinus leaf extract for antibacterial application
G. Kalaiyan,S. Suresh,Sivalingam Thambidurai,K.M. Prabu,S. Karthick Kumar,N. Pugazhenthiran,M. Kandasamy +6 more
TL;DR: In this paper, a green synthesis of hierarchical copper oxide (CuO) microleaf bundles was performed using Hibiscus cannabinus (H.cannabinus) leaf extract and characterized through X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy-dispersive Xray spectroscopy (EDAX), transmission electron microscope (TEM) and Fourier transform infrared (FTIR) spectrometer.
Journal ArticleDOI
Bridging across length scales: multi-scale ordering of supported lipid bilayers via lipoprotein self-assembly and surface patterning.
Madhuri S. Vinchurkar,Daniel A. Bricarello,Jens O. Lagerstedt,James P. Buban,Henning Stahlberg,Michael N. Oda,John C. Voss,Atul N. Parikh +7 more
TL;DR: A two-step process, involving spontaneous self-assembly of lipids and apolipoproteins and surface patterning, produces single, supported lipid bilayers over two discrete and independently adjustable length scales, which present a viable means of generating high-density membrane protein arrays.
Journal ArticleDOI
Formation of SiO2 Air-Gap Patterns Through scCO2 Infusion of NIL Patterned PHEMA
TL;DR: Using templates generated by nanoimprint lithography, this article reported the fabrication of SiO2 patterns (∼450 nm) line widths over large active surface areas (14.5 cm2).
Journal ArticleDOI
Rapid micropatterning of mesoporous silica film by site-selective low-energy electron beam irradiation.
Atsushi Hozumi,Tatsuo Kimura +1 more
TL;DR: Rapid microfabrication of mesoporous silica film at low temperature was achieved with low-energy electron beam (LEEB) irradiation and the unirradiated regions were etched away preferentially to the irradiated areas; therefore, rapid micropatterning was possible by area-selective LEEB irradiation followed by chemical etching.
References
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Synthesis of Macroporous Minerals with Highly Ordered Three-Dimensional Arrays of Spheroidal Voids
TL;DR: The examples presented demonstrate the compositional diversity possible with this technique and could have applications in areas ranging from quantum electronics to photocatalysis to battery materials.