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Journal ArticleDOI

The role of soft colloidal templates in controlling the size and shape of inorganic nanocrystals

Marie-Paule Pileni
- 01 Mar 2003 - 
- Vol. 2, Iss: 3, pp 145-150
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TLDR
These controls of the size and shape of inorganic nanomaterials are discussed and it is shown that nanoparticles can be considered to be efficient nanoreactors.
Abstract
In the past decade, colloidal solutions have been assumed to be very efficient templates for controlling particle size and shape A large number of groups have used reverse micelles to control the size of spherical nanoparticles This makes it possible to determine the various parameters involved in such processes, and demonstrates that nanoparticles can be considered to be efficient nanoreactors However, some discrepancies arise There are few reports concerning the control of particle shape, and it is still rather difficult to determine the key parameters, such as the adsorption of salts and other molecules, and the synthesis procedure Here, we discuss these controls of the size and shape of inorganic nanomaterials

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Citations
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Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications

TL;DR: Practical Interests of Magnetic NuclearRelaxation for the Characterization of Superparamagnetic Colloid, and Use of Nanoparticles as Contrast Agents forMRI20825.
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Ultra-large-scale syntheses of monodisperse nanocrystals.

TL;DR: This work is able to synthesize as much as 40 g of monodisperse nanocrystals in a single reaction, without a size-sorting process, and the particle size could be controlled simply by varying the experimental conditions.
Journal ArticleDOI

Colloidal nanocrystal synthesis and the organic–inorganic interface

TL;DR: Colloidal nanocrystals are solution-grown, nanometre-sized, inorganic particles that are stabilized by a layer of surfactants attached to their surface, which makes these structures attractive and promising building blocks for advanced materials and devices.
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Why gold nanoparticles are more precious than pretty gold: noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes.

TL;DR: A number of applications are presented that take advantage of the electromagnetic field enhancement of the radiative properties of noble metal nanoparticles resulting from the surface plasmon oscillations.

Colloidal nanocrystal synthesis and the organic-inorganic interface - eScholarship

TL;DR: In this article, the authors review what is known about nanocrystal growth and outline strategies for controlling it, and present a review of the current state-of-the-art in this area.
References
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Journal ArticleDOI

Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites

TL;DR: In this paper, a simple route to the production of high-quality CdE (E=S, Se, Te) semiconductor nanocrystallites is presented, based on pyrolysis of organometallic reagents by injection into a hot coordinating solvent.
Journal ArticleDOI

Wet Chemical Synthesis of High Aspect Ratio Cylindrical Gold Nanorods

TL;DR: Gold nanorods with aspect ratios of 4.6 ± 1.2, 13 ± 2, and 18 ± 2.5 are prepared by a seeding growth approach in the presence of an aqueous miceller template.
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Molecular ruler for scaling down nanostructures

TL;DR: A method of constructing <30-nanometer structures in close proximity with precise spacings is presented that uses the step-by-step application of organic molecules and metal ions as size-controlled resists on predetermined patterns, such as those formed by electron-beam lithography.
Journal ArticleDOI

Synthesis of Soluble and Processable Rod-, Arrow-, Teardrop-, and Tetrapod-Shaped CdSe Nanocrystals

TL;DR: In this paper, the formation of extremely high aspect ratio CdSe nanorods (30:1) was achieved by growth of the nanoparticles in a mixture of hexylphosphonic acid and trio-cyclophosphine oxide, and the most influential factors in shape control are the ratio of surfactants, injection volume, and time-dependent monomer concentration.
Journal ArticleDOI

Gold Nanorods: Electrochemical Synthesis and Optical Properties

TL;DR: In this paper, the authors showed that the dependence of λmax for longitudinal resonance on the mean aspect ratio shows a deviation from the classical electrostatic model prediction at mean aspect ratios around 4 ± 1.
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