Synthesize of Particles and Crystals in Gels

A special issue of Gels (ISSN 2310-2861).

Deadline for manuscript submissions: closed (31 December 2019) | Viewed by 3364

Special Issue Editor

Special Issue Information

Dear Colleagues,

Today, we know that gels as cross-linked systems have been extensively used in various areas including foods, textiles, paints, adhesives, and pharmaceuticals in order to perform new functionalities. Depending on the chemical structure and polarity, they generally contain functional domains that can act as nucleation sites for the synthesis of inorganic compounds. In medicine, the nucleation and growth of particles in gels has been of increasing interest as it is useful for explaining the mechanisms of biomineralization in bone and tissue engineering applications. As the in-vivo mineralization of deposited crystals cannot be directly monitored, gels can be used as a model system to study the mechanism of crystal nucleation and growth. In material science and engineering, gels are considered for the preparation of functional composite particles with synergistic properties in different applications.

The investigation of the mineralization of particles and crystals is thus important for introducing a cost-effective, simple, and convenient strategy for the synthesis of hybrid composite particles. In this Special Issue, original research papers, as well as reviews, are welcome. The goal is to gather contributions on various aspects related to the preparation, analyses, industrial uses, as well as their potential toxicity to humans during their usage.

I hope that this Special Issue will provide the scientific community with a thorough overview of the current research on particle synthesis, characterization and application.

Dr. Mazeyar Parvinzadeh Gashti
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. Gels 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 2600 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

  • Particles
  • Gel
  • Diffusion
  • Synthesis
  • Mineralization
  • Functionality
  • Characterization

Published Papers (1 paper)

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Research

9 pages, 2934 KiB  
Article
Preparation of ETS-10 Microporous Phase Pellets with Color Change Properties
by Pierantonio De Luca, Carmelo Mastroianni, Carlo Siciliano, Janos B. Nagy and Anastasia Macario
Gels 2019, 5(3), 42; https://doi.org/10.3390/gels5030042 - 02 Sep 2019
Cited by 7 | Viewed by 2886
Abstract
The main scope of the present work is to synthesize pH-responsive Engelhard titanium silicate (ETS)-10 phase crystalline pellets through the smart modification of a synthetic process which was previously applied to the preparation of other phases. The original preparative method, which envisages the [...] Read more.
The main scope of the present work is to synthesize pH-responsive Engelhard titanium silicate (ETS)-10 phase crystalline pellets through the smart modification of a synthetic process which was previously applied to the preparation of other phases. The original preparative method, which envisages the use of the same initial synthesis as a binder for the preparation of pellets, was modified by adding an appropriate pH indicator to a number of systems subject to this investigation. It should be noted that the modified process was never before used to give access to pH-responsive ETS-10 phase pellets, and it is disclosed here for the first time. The study started from the definition of the best experimental conditions, which were optimized by analyzing the effects of temperature and system composition. The addition of the pH indicator did not alter the physicochemical characteristics and reactivity of the system. The pH-responsive ETS-10 phase crystalline pellets were characterized by an adequate mechanical strength and by a high capability to change color. The latter aspect can be particularly useful when this material is used in catalytic processes whose performance is strictly dependent on the pH value. The amount of gel used, as well as the working temperature, were the main critical parameters to be controlled during the preparation of pH-responsive ETS-10 phase crystalline pellets. The pellets were fully characterized by X-ray diffraction in order to investigate and identify the possible phases, and by using a hardness tester to measure the compressive strength. Finally, toning tests were performed. Full article
(This article belongs to the Special Issue Synthesize of Particles and Crystals in Gels)
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