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Gels
Special Issues
Chemical Properties and Application of Gel Materials
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Chemical Properties and Application of Gel Materials

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Processing and Engineering".

Deadline for manuscript submissions: 20 November 2024 | Viewed by 592

Special Issue Editors

Dr. Jiahui Liu

E-Mail Website
Guest Editor
Materials Science and Engineering, Clemson University, Clemson, SC 29625, USA
Interests: stimuli-responsive materials; hydrogels; adhesives; self-healing materials; polyelectrolyte
Dr. Wen Sun

E-Mail Website
Guest Editor
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
Interests: photoresponsive polymers; drug delivery nanoparticles; biological gel
Special Issues, Collections and Topics in MDPI journals
Dr. Xiaolong Zeng

E-Mail Website
Guest Editor
DWI—Leibniz Institute for Interactive Materials, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, 52074 Aachen, Germany
Interests: 3D-printed hydrogel; sonocatalysis; mechanochemistry; photochemistry

Special Issue Information

Dear Colleagues,

This Special Issue on “Chemical Properties and Application of Gel Materials” is dedicated to exploring the unique chemical properties of gel materials as well as their diverse applications across a wide range of fields, from healthcare to the food industry and from environmental remediation to advanced electronic devices. Understanding how the chemical components govern gel formation, microstructure, and mechanical properties is essential for harnessing their full potential in specific applications. In this Special Issue, we invite contributions exploring the structure–property relationships of gel materials, shedding light on their synthesis, characterization, and manipulation. Researchers are encouraged to explore the molecular interactions, cross-linking mechanisms, and stimulus-responsive behaviors that define gel properties. Additionally, investigations into novel gel-forming materials and innovative synthesis techniques are welcomed to broaden our understanding and expand the range of available gel materials. In addition to elucidating gel materials' chemical and physical properties, contributions exploring the use of gel materials in drug delivery systems, tissue engineering, environmental remediation, food science, cosmetics, and advanced electronic devices are highly encouraged. This Special Issue aims to provide an interdisciplinary discussion and inspire further advancements in this field by highlighting the theoretical foundations and applications of gel materials. We believe that this Special Issue will present a valuable platform for researchers to exchange ideas, share insights, and catalyze innovation for gel materials. Join us in exploring the rich chemical landscape of gels and unlocking their boundless potential to address technological challenges.

Dr. Jiahui Liu
Dr. Wen Sun
Dr. Xiaolong Zeng
Guest Editors

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

  • soft materials
  • gel materials
  • synthesis and characterization
  • structure–property relationships

Published Papers (2 papers)

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Research

12 pages, 3682 KiB  
Communication
Assessment of Alginate Gel Films as the Orodispersible Dosage Form for Meloxicam
by Barbara Jadach, Martyna Kowalczyk and Anna Froelich
Gels 2024, 10(6), 379; https://doi.org/10.3390/gels10060379 (registering DOI) - 2 Jun 2024
Abstract
The aim of this study was to obtain films based on sodium alginate (SA) for disintegration in the oral cavity. The films were prepared with a solvent-casting method, and meloxicam (MLX) as the active ingredient was suspended in a 3% sodium alginate solution. [...] Read more.
The aim of this study was to obtain films based on sodium alginate (SA) for disintegration in the oral cavity. The films were prepared with a solvent-casting method, and meloxicam (MLX) as the active ingredient was suspended in a 3% sodium alginate solution. Two different solid-dosage-form additives containing different disintegrating agents, i.e., VIVAPUR 112® (MCC; JRS Pharma, Rosenberg, Germany) and Prosolve EASYtabs SP® (MIX; JRS Pharma, Rosenberg, Germany), were used, and four different combinations of drying time and temperature were tested. The influence of the used disintegrant on the properties of the ODFs (orodispersible films) was investigated. The obtained films were studied for their appearance, elasticity, mass uniformity, water content, meloxicam content and, finally, disintegration time, which was studied using two different methods. The films obtained with the solvent-casting method were flexible and homogeneous in terms of MLX content. Elasticity was slightly better when MIX was used as a disintegrating agent. However, these samples also revealed worse uniformity and mechanical durability. It was concluded that the best properties of the films were achieved using the mildest drying conditions. The type of the disintegrating agent had no effect on the amount of water remaining in the film after drying. The water content depended on the drying conditions. The disintegration time was not affected by the disintegrant type, but some differences were observed when various drying conditions were applied. However, regardless of the formulation type and manufacturing conditions, the analyzed films could not be classified as fast disintegrating films, as the disintegration time exceeded 30 s in all of the tested formulations. Full article
(This article belongs to the Special Issue Chemical Properties and Application of Gel Materials)
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18 pages, 7250 KiB  
Article
Study of the Synthesis of Multi-Cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Co-Ni-O Aerogels and Their Catalytic Activity in the Dry Reforming of Methane
by Jaroslav Cihlar, Serhii Tkachenko, Vendula Bednarikova, Jaroslav Cihlar, Jr., Klara Castkova, Martin Trunec and Ladislav Celko
Gels 2024, 10(5), 328; https://doi.org/10.3390/gels10050328 - 11 May 2024
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Abstract
Dense multi-cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Ni-Co-O oxide aerogels were prepared by epoxide-driven sol–gel synthesis. Catalysts for dry reformation of methane, Sm2O3/Co, Sm2O3/Ni, Al2O3/Co, Al2O3/Ni, Al [...] Read more.
Dense multi-cationic Sm-Co-O, Sm-Ni-O, Al-Co-O, Al-Ni-O, and Al-Ni-Co-O oxide aerogels were prepared by epoxide-driven sol–gel synthesis. Catalysts for dry reformation of methane, Sm2O3/Co, Sm2O3/Ni, Al2O3/Co, Al2O3/Ni, Al2O3/Co, and Ni were prepared by reduction of aerogels with hydrogen and their catalytic activities and C-deposition during dry reformation of methane were tested. Catalytic tests showed high methane conversion (93–98%) and C-deposition (0.01–4.35 mg C/gcat.h). The highest content of C-deposits after catalytic tests was determined for Al2O3/Co and Al2O3/Ni catalysts, which was related to the formation of Al alloys with Co and Ni. A uniform distribution of Co0 and Ni0 nanoparticles (in the form of a CoNi alloy) was found only for the Al2O3/Co and Ni catalysts, which showed the highest activity as well as low C deposition. Full article
(This article belongs to the Special Issue Chemical Properties and Application of Gel Materials)
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