Facile patterning of assembled silica nanoparticles with a closely packed arrangement through guided growth

Yamauchi, Yusuke; Imasu, Junko; Kuroda, Yoshiyuki; Kuroda, Kazuyuki; Sakka, Yoshio

doi:10.1039/b822978n

Cited by 16 publications

(12 citation statements)

References 21 publications

(37 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this frame, the versatility of silica nanoparticles is very relevant for the elaboration of multifunctional systems and in particular nanoparticles. Because they can support very different kind of functional nanoobjects, they found numerous applications in photonics, catalysis or biotechnologies [145,146]. Beyond their non-toxicity, their surface can be functionalized by molecules of interest in biology [147].…”

Section: Toward Theranostic Tools Based On Silica Nanoparticlesmentioning

confidence: 99%

Advances in the Engineering of Near Infrared Emitting Liquid Crystals and Copolymers, Extended Porous Frameworks, Theranostic Tools and Molecular Junctions Using Tailored Re6 Cluster Building Blocks

et al. 2014

View full text Add to dashboard Cite

International audienceAt the occasion of the fiftieth birthday of the introduction of the term 'metal atom cluster' by F. A. Cotton in inorganic chemistry, it is the good time to make a review on the advances in the engineering of molecular assemblies and nanomaterials based on octahedral Re6 metal atom clusters. The latter exhibit unique intrinsic structural and physicochemical properties (orthogonal disposition of metallic sites that can be selectively functionalized, photoluminescence, redox, generation of singlet oxygen) that make them relevant building blocks for the structuration at the nanometric scale and functionalization of hybrid organic-inorganic materials and supramolecular frameworks. After synthesis by solid state chemistry techniques at high temperature, inorganic precursors built up on face-capped [(Re6Yi8)Ya6] cluster units (Y = chalcogen and/or halogen) can be functionalized via solution chemistry techniques or organic melts to form [(Re6Yi8)La6] (L = CN, OH, various organic ligands...). This work reports advances in the synthesis of [(Re6Yi8)Ya6] and [(Re6Yi8)La6] cluster units as well as on their use in the elaboration of supramolecular frameworks, nanoparticles, hybrid nanomaterials (co-polymers and liquid crystals) and active molecular junctions

show abstract

Section: Toward Theranostic Tools Based On Silica Nanoparticlesmentioning

confidence: 99%

Advances in the Engineering of Near Infrared Emitting Liquid Crystals and Copolymers, Extended Porous Frameworks, Theranostic Tools and Molecular Junctions Using Tailored Re6 Cluster Building Blocks

et al. 2014

View full text Add to dashboard Cite

show abstract

“…By replicating periodically arranged silica nanoparticles with relatively small diameter,11 three‐dimensionally ordered mesoporous (3DOM) materials, such as polymers,12 carbon,11a and platinum,13, 14 have been prepared. Studies on silica nanoparticles assembled into thin films,15a patterned structures,15b and one‐dimensional arrays15c have also been reported. Although macroporous gold with submicrometer‐scale periodicity is formed by using large templates,6 disordered mesoporous gold is formed when small silica nanoparticles (ca.…”

Section: Methodsmentioning

confidence: 99%

Morphosynthesis of Nanostructured Gold Crystals by Utilizing Interstices in Periodically Arranged Silica Nanoparticles as a Flexible Reaction Field

Kuroda¹,

Kuroda²

2010

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

Nanostructural and morphological design of gold has attracted great attention because of its chemical stability, high conductivity, and quantum-size effects. Nanostructured gold materials with various morphologies [1] show unique optical properties due to their localized surface plasmon resonance [2] and catalytic activity. [3] Ordered arrays of nanostructured gold with various arrangements that depend on their morphology are also important for the fabrication of hierarchically organized functional materials. [4] However, the applications of nanostructured gold are often limited because of its tendency to form unstable aggregates. To circumvent this problem, the formation of three-dimensionally extended frameworks is quite effective. Such three-dimensionally nanostructured gold materials are stable to catalytic reactions [5] and promising for various applications, such as electrochemistry, sensing, and surface-enhanced Raman scattering. [5][6][7] However, the design of highly ordered three-dimensional gold nanostructures is quite limited because of the difficulty of controlling the growth of gold. Three-dimensional mesoporous gold materials are formed by a dealloying technique, whereas their nanostructures are not ordered. [5] Though various mesoporous metals have been prepared by soft and hard templating techniques, [8] the nanostructured gold materials prepared by using nanoscale hard templates have been limited to nanoparticles and nanowires without specific threedimensional nanostructures. [9] Colloidal templating is one of the most useful techniques to form three-dimensionally ordered macroporous materials. [10] By replicating periodically arranged silica nanoparticles with relatively small diameter, [11] three-dimensionally ordered mesoporous (3DOM) materials, such as polymers, [12] carbon, [11a] and platinum, [13,14] have been prepared. Studies on silica nanoparticles assembled into thin films, [15a] patterned structures, [15b] and one-dimensional arrays [15c] have also been reported. Although macroporous gold with submicrometer-scale periodicity is formed by using large templates, [6] disordered mesoporous gold is formed when small silica nanoparticles (ca. 50 nm) are used as templates. [13] The rapid growth of gold may cause collapse of the three-dimensional structure of templates due to the structural mismatch between templates and gold.To achieve slower crystal growth, we have focused on vapor infiltration of a reducing agent (dimethylamineborane, DMAB) to deposit gold inside the template (denoted vapor reduction). We have applied this technique for the formation of mesoporous platinum by replicating lyotropic liquid-crystalline templates [16] or colloidal crystal templates. [14] It allows both a slower reduction rate and lower reaction temperature than reduction with H 2 . [13] To our surprise, during the course of this study, many gold particles deposited in the interstices of periodically arranged silica nanoparticles by vapor reduction showed a two-dimensional morphology in spite of the three...

show abstract

“…The main focus of the current review will be on materials that can be deposited and patterned by liquid precursors, such as sol-gel solutions and colloidal suspensions. Polymers, metals 11 and colloidal assemblies [15][16][17] are outside the scope of this paper. With a very few exceptions, neither does it address serial patterning methods, such as ink jet printing, 18 dip-pen nanolithography, [19][20][21] direct ink writing, 22 nor ion-beam and e-beam methods.…”

Section: Introductionmentioning

confidence: 99%

Micrometer and nanometer-scale parallel patterning of ceramic and organic–inorganic hybrid materials

Elshof

Khan

Göbel

2010

Journal of the European Ceramic Society

View full text Add to dashboard Cite

Facile patterning of assembled silica nanoparticles with a closely packed arrangement through guided growth

Abstract: A facile patterning of assembled silica nanoparticles with a closely packed arrangement is demonstrated over a wide area through a guided growth approach utilizing a micro-mold.

Cited by 16 publications

References 21 publications

Advances in the Engineering of Near Infrared Emitting Liquid Crystals and Copolymers, Extended Porous Frameworks, Theranostic Tools and Molecular Junctions Using Tailored Re6 Cluster Building Blocks

Advances in the Engineering of Near Infrared Emitting Liquid Crystals and Copolymers, Extended Porous Frameworks, Theranostic Tools and Molecular Junctions Using Tailored Re6 Cluster Building Blocks

Morphosynthesis of Nanostructured Gold Crystals by Utilizing Interstices in Periodically Arranged Silica Nanoparticles as a Flexible Reaction Field

Micrometer and nanometer-scale parallel patterning of ceramic and organic–inorganic hybrid materials

Contact Info

Product

Resources

About