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
Citations
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Book ChapterDOI
SEM and TEM investigations of macroporous and toroidal mesostructured transition metal oxides
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Hybrid Micro-Optical Sensors via Sol-Gel Soft Lithography
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Proceedings ArticleDOI
Nanometer-scale antibody patterning for directed eosinophil cell immobilization and stimulation
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Patterned Functional Arrays by Selective De-Wetting
TL;DR: In this paper, a micro-contact printing technique was used to prep substrates with patterns of hydrophilic, hydroxylterminated SAMS and hydrophobic methyl-terminatedSAMS, and a pH sensitive, microfluidic system was formed by further conjugation reactions with pH sensitive dye molecules.
References
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Journal ArticleDOI
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.