Well-defined colloidal crystal films from the 2D self-assembly of core–shell semi-soft nanoparticles

2015 ◽  
Vol 6 (41) ◽  
pp. 7297-7307 ◽  
Author(s):  
Hadi Sabouri ◽  
Kohji Ohno ◽  
Sébastien Perrier
Keyword(s):  
Self Assembly ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Core Shell ◽  
Polymer Shell ◽  
Crystal Films ◽  
Silica Core ◽  
Shell Particles ◽  
Soft Nanoparticles ◽  
Core Polymer

Silica core–polymer shell particles are obtained from surface mediated RAFT polymerisation and assembled into ordered 2D colloidal crystals.

scholarly journals Preparation, Properties, and Self-Assembly Behavior of PTFE-Based Core-Shell Nanospheres

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Katia Sparnacci ◽  
Diego Antonioli ◽  
Simone Deregibus ◽  
Michele Laus ◽  
Giampaolo Zuccheri ◽  
...  
Keyword(s):  
Particle Size ◽  
Self Assembly ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Direct Consequence ◽  
Core Shell ◽  
Precise Control ◽  
Assembly Behavior ◽  
Shell Particles ◽  
High Degree

Nanosized PTFE-based core-shell particles can be prepared by emulsifier-free seed emulsion polymerization technique starting from spherical or rod-like PTFE seeds of different size. The shell can be constituted by the relatively high Tg polystyrene and polymethylmethacrylate as well as by low Tg polyacrylic copolymers. Peculiar thermal behavior of the PTFE component is observed due to the high degree of PTFE compartmentalization. A very precise control over the particle size can be exerted by properly adjusting the ratio between the monomers and the PTFE seed. In addition, the particle size distribution self-sharpens as the ratio monomer/PTFE increases. Samples with uniformity ratios suited to build 2D and 3D colloidal crystals are easily prepared. In particular, 2D colloidal crystal of spheres leads to very small 2D nanostructuration, useful for the preparation of masks with a combination of nanosphere lithography and reactive ion etching. 3D colloidal crystals were also obtained featuring excellent opal quality, which is a direct consequence of the monodispersity of colloids used for their growth.

scholarly journals Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics

2018 ◽  
Vol 160 ◽  
pp. 926-935 ◽  
Author(s):  
Steffen Vowinkel ◽  
Anna Boehm ◽  
Timmy Schäfer ◽  
Torsten Gutmann ◽  
Emanuel Ionescu ◽  
...  
Keyword(s):  
Colloidal Crystal ◽  
Porous Ceramics ◽  
Core Shell ◽  
Crystal Films ◽  
Shell Particles

Fabrication and dual imaging properties of quantum dot/silica core-shell particles immobilized with gold nanoparticles

2018 ◽  
Vol 33 (11) ◽  
pp. 737-747
Author(s):  
Ting-ting Li ◽  
Tomoya Inose ◽  
Takahiro Oikawa ◽  
Masayuki Tokunaga ◽  
Keiichiro Hatoyama ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Quantum Dot ◽  
Core Shell ◽  
Silica Core ◽  
Dual Imaging ◽  
Shell Particles ◽  
Imaging Properties

scholarly journals Synthesis of magnetic mesoporous titania colloidal crystals through evaporation induced self-assembly in emulsion as effective and recyclable photocatalysts

2015 ◽  
Vol 17 (41) ◽  
pp. 27653-27657 ◽  
Author(s):  
Jeffrey E. Chen ◽  
Hong-Yuan Lian ◽  
Saikat Dutta ◽  
Saad M. Alshehri ◽  
Yusuke Yamauchi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Self Assembly ◽  
Colloidal Crystal ◽  
Colloidal Crystals ◽  
Mesoporous Titania ◽  
Evaporation Induced Self Assembly

This study illustrates the directed self-assembly of mesoporous TiO2 with magnetic properties due to its colloidal crystal structure with Fe3O4.

scholarly journals Enzyme immobilization using two processing methods onto silica core-shell particles

2020 ◽  
Author(s):  
Milan P. Nikolić ◽  
Vladimir B. Pavlović ◽  
Slobodanka Stanojević-Nikolić ◽  
Vladimir V. Srdić
Keyword(s):  
Enzyme Immobilization ◽  
Core Shell ◽  
Processing Methods ◽  
Silica Core ◽  
Shell Particles

scholarly journals Self-Assembly of Ternary Particles for Tough Colloidal Crystals with Vivid Structure Colors

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Binfu Bao ◽  
Duo Liu ◽  
Youyou Yang ◽  
Zhehong Shen ◽  
Bo You
Keyword(s):  
Carbon Black ◽  
Self Assembly ◽  
Large Scale ◽  
Colloidal Crystals ◽  
The Self ◽  
Natural Conditions ◽  
Practical Applications ◽  
Structural Colors ◽  
Crystal Films ◽  
Nanosilica Particles

Self-assembly of colloidal spheres is the most frequently used method for structural colors, but the chroma of the structural colors is usually so low that people cannot observe it under natural conditions. This paper presents a facile method for fabrications of vivid structural colors by doping carbon black into the self-assembly of colloidal polymer spheres and nanosilica particles. This approach can generate very gorgeous structural colors which can be very easily seen under natural conditions. The fabrication conditions for the self-assembly of composite dispersions of polymer/silica/carbon black were optimized to obtain colloidal crystals with vivid colors. Thus, robust mechanical properties, large-scale, and brilliant structural colors can guarantee the obtained crystal films to find practical applications, which are demonstrated by the fact that the successful applications of structural colors beautify the original simple and tedious surface of bamboo strand board (BSB).

Highly luminescent yttria–silica core–shell nanoparticles by the sacrificial polymer shell method

2013 ◽  
Vol 39 (4) ◽  
pp. 4513-4521 ◽  
Author(s):  
Mehdi Ghahari ◽  
Paola Fabbri ◽  
Francesco Pilati ◽  
Luca Pasquali ◽  
Monica Montecchi ◽  
...  
Keyword(s):  
Core Shell ◽  
Polymer Shell ◽  
Shell Nanoparticles ◽  
Silica Core ◽  
Core Shell Nanoparticles
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