Nanoparticles organization

Fig. 38 Transmission electron micrographs of gold nanoparticles organized in 2D arrays through binding of two types of three-branched DNA motifs, (a) Array where only one tile contains 5 nm particles. The resulting arrangement has two different characteristic length scales, (b) Array where both tiles contain 5-nm particles, yielding an equally spaced pattern, (c) Array where one tile contains a 5-nm particle and the other tile contains a 10-nm particle. The pattern of alternating smaller and bigger spheres mimics the rhombic pattern of the tile array. Adapted with permission from [164]...

Most reports over the past 4 years have dealt with the manipulation of display-related parameters such as electro-optic response and alignment, but increasingly also with thermal effects, pattern formation, nanoparticle-liquid crystal compatibility (i.e., enhancing the stability of dispersions), and to some degree with nanoparticle organization. 

Self-assembly of nanoparticles in well-ordered 2D arrays represents a major goal in the fabrication of microelectronics devices. Different methods have been developed to tackle the 2D nanoparticle organization challenge. 

One family of new materials with potential use in metal catalysis is that of metal nanostructures such as metal nanoparticles (see Metal Nanoparticles, Synthesis of and Metal Nanoparticles, Organization Applications of), nanoshells, nanowires, nanorods, nanotubes, nanobelts, and nanoplates. " For instance, it has been recently shown that Ag nanowires and nanoparticles can be produced by... 

Biomineralization Metal Nanoparticles, Organization Applications of Metal Nanoparticles, Synthesis of Semiconductor Nanocrystal Quantum Dots. 

Swami A, Kumar A, Selvakannan PR, Mandal S, Sastry M (2003) Langmuir-Blodgett films of laurylamine-modified hydrophobic gold nanoparticles organized at the air-water interface. J Colloid Interface Sci 260 367-373... 

Because of the considerable variety of materials that can be classified as porous, the discussion will be limited to several groups porous silicates and aluminosilicates, porous metal oxides and related compounds, porous polyoxometalates, metal-organic frameworks, porous carbons, carbon nanotubes, and several hybrid materials. All these materials can be viewed as relatively homogeneous from the electrochemical point of view. Metal and metal oxide nanoparticles, organic metals, fullerenes, and dendrimers, which can also be regarded as nanostructured materials, also displaying distinctive electrochemical features, will not be treated here for reasons of brevity, although their appearance in hybrid materials as modifiers for microporous materials will be discussed. 

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