Advances of Chemical Preparation Methods of Nanomaterials

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (15 August 2021) | Viewed by 3064

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Guest Editor
Departamento de Física, Universidad de Guadalajara, CUCEI, Marcelino García, C.P. Guadalajara 44430, Jalisco, Mexico
Interests: synthesis of nanostructured oxides; solid state gas sensors; UV sensors; photocatalysis
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Special Issue Information

Dear Colleagues,

The large dependence of the physical and chemical properties of materials on their morphology and size has motivated the development of numerous chemical processes. Sol–gel, hydrothermal, coprecipitation, autocombustion, and molten salts are some examples of the many approaches used in the preparation of nanostructured oxides and other inorganic compounds. On the other hand, the epitaxial growth of crystalline nanostructured thin and thick films allows, among others, the adjustment of the bandgap energy and electrical conductivity of materials for high tech applications. Applications of nanostructured and nanoporous materials can be found in many other areas, such as photocatalysis, gas sensors, membranes, antibacterial agents, and contrast particles for medical imaging, to mention a few. Therefore, the processes used in the preparation of these materials play a key a role in their subsequent performance.

This Special Issue of the MDPI Processes journal on the topic of “Advances of Chemical Preparation Methods of Nanomaterials” provides the opportunity to contribute with high-quality works focused on the development of novel processes to obtain nanostructured materials. The topics covered are as follows, but works in related fields are welcome:

  • Preparation of nanostructured inorganic particles;
  • Synthesis of nanoporous materials;
  • Crystal growth of nanostructured films;
  • Particle size and shape dependence of physical and chemical properties.

Dr. Carlos R. Michel
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • chemical synthesis
  • nanoparticles
  • nanostructured films
  • nanotubes

Published Papers (1 paper)

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Research

10 pages, 1585 KiB  
Article
Effect of Gd and Dy Concentrations in Layered Double Hydroxides on Contrast in Magnetic Resonance Imaging
by Karina Nava Andrade, Gregorio Guadalupe Carbajal Arízaga and José Antonio Rivera Mayorga
Processes 2020, 8(4), 462; https://doi.org/10.3390/pr8040462 - 14 Apr 2020
Cited by 9 | Viewed by 2238
Abstract
In this work, we explore the synthesis of layered double hydroxide (LDH) particles containing different molar ratios of Gd3+ and Dy3+ cations. A single crystalline phase was obtained for Zn2.0Al0.75Gd0.125Dy0.125-LDH and Zn2.0 [...] Read more.
In this work, we explore the synthesis of layered double hydroxide (LDH) particles containing different molar ratios of Gd3+ and Dy3+ cations. A single crystalline phase was obtained for Zn2.0Al0.75Gd0.125Dy0.125-LDH and Zn2.0Al0.5Gd0.25Dy0.25-LDH, and their efficiency as contrast agents was evaluated by T1- and T2-weighted magnetic resonance imaging (MRI). Both GdDy-LDHs exhibited longitudinal relaxivity (r1) higher than a commercial reference. The highest contrast in the T1 mode was achieved with the Zn2.0Al0.75Gd0.125Dy0.125-LDH, which contained the lowest concentration of lanthanides; this efficiency is related to the lowest amount of carbonate anions complexing the lanthanide sites. On the contrary, the best contrast in the T2 mode was achieved with Zn2.0Al0.5Gd0.25Dy0.25-LDH. Zn2.0Al0.75Gd0.125Dy0.125-LDH and Zn2.0Al0.5Gd0.25Dy0.25-LDH presented r2/r1 ratios of 7.9 and 22.5, respectively, indicating that the inclusion of gadolinium and dysprosium into layered structures is a promising approach to the development of efficient bimodal (T1/T2) MRI contrast agents. Full article
(This article belongs to the Special Issue Advances of Chemical Preparation Methods of Nanomaterials)
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