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Gels
Special Issues
Physical and Mechanical Properties of Polymer Gels (2nd Edition)
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Physical and Mechanical Properties of Polymer Gels (2nd Edition)

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

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1519

Special Issue Editors

Dr. Aref Abbasi Moud

E-Mail Website
Guest Editor
Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
Interests: soft matter; rheology; composite; nanoparticles; flocculants
Special Issues, Collections and Topics in MDPI journals
Dr. Yi Cao

E-Mail Website
Guest Editor
School of Physics, Nanjing University, Nanjing 210093, China
Interests: protein; peptide; hydrogel; single molecule; mechanical properties; self-assembly; force spectroscopy; biomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymer gels, which are utilized in many industries, created by the self-assembly of small molecules via various non-covalent interactions, are currently a significant class of soft materials attracting significant interest in sensing, catalysis, cell culture, drug delivery, tissue engineering, environmental remediation, and optoelectronics. Polymer gels have the intrinsic dynamic and reversibility dynamic natures of non-covalent bonds, as opposed to covalently cross-linked polymer gels, which are normally static with no additional tunability. Polymer gel development, inspired by nature, has expanded into a much broader science, allowing gel materials to have more fascinating and emergent activities. For example, in the study of polymer-based gels, focus has shifted from classical thermodynamic control to non-equilibrium self-assembly, and from single-component systems to multi-component systems.

We organize this Special Issue on “Physical and Mechanical Properties of Polymer Gels” to summarize recent developments in the layout of polymer-based gels, the enquiry of self-assembly pathways, self-assembly control, and the functionalization and potential applications of polymer gels, among many other relevant issues, based on the great progress in the field of polymer-based gels in recent times. We are looking forward to receiving fresh data and reviews on polymer-based gels from both experimental and theoretical perspectives.

Dr. Aref Abbasi Moud
Dr. Yi Cao
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 matter
  • rheology
  • gels
  • bijels

Related Special Issue

Published Papers (2 papers)

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Research

24 pages, 12442 KiB  
Article
The Optimization Study of Rheological Characteristics of Wind Power Grease Based on Gel-State
by Han Peng, Defang Zhao, Linjian Shangguan, Songyin Li, Ruixue Cheng and Yanchi Li
Gels 2024, 10(4), 253; https://doi.org/10.3390/gels10040253 - 09 Apr 2024
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Abstract
The gel-state grease plays a vital and indispensable role in the long-term operation of wind turbines. To reduce carbon emissions and increase the reliability of wind turbines, this paper takes the gel-state Mobil SHC 461WT grease as the study object. Firstly, the rheological [...] Read more.
The gel-state grease plays a vital and indispensable role in the long-term operation of wind turbines. To reduce carbon emissions and increase the reliability of wind turbines, this paper takes the gel-state Mobil SHC 461WT grease as the study object. Firstly, the rheological properties of the gel-state Mobil SHC 461WT grease were investigated using the Anton Paar MCR302 rotational rheometer. Secondly, the rheological characteristics of three different gel states of the Mobil SHC 461WT grease (additive content of 0.1% of RFM3000, SK3115, and PV611, respectively, in the gel-state Mobil SHC 461WT grease) were optimized under the same conditions. Finally, according to the experimental results and the Herschel–Bulkley (H–B) model, the RFM3000 additive has the best effect on improving the rheological characteristics of the gel-state Mobil SHC 461WT grease. This research provides a new idea and direction for the technological advancement of the gel-state grease industry. Full article
(This article belongs to the Special Issue Physical and Mechanical Properties of Polymer Gels (2nd Edition))
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17 pages, 1365 KiB  
Article
Comparison of the Adsorption and Desorption Dynamics of Biological Molecules on Alginate Hydrogel Microcapsules—The Case of Sugars, Polyphenols, and Proteins
by Maja Benković, Izvorka Laljak, Davor Valinger, Tamara Jurina, Tea Sokač Cvetnić, Jasenka Gajdoš Kljusurić and Ana Jurinjak Tušek
Gels 2024, 10(3), 201; https://doi.org/10.3390/gels10030201 - 16 Mar 2024
Viewed by 675
Abstract
The aim of this work was to analyze and compare the adsorption and desorption processes of carbohydrates (glucose as a model molecule), polyphenols (gallic acid as a model molecule), and proteins (bovine serum albumin, BSA as a model molecule) on alginate microcapsules. The [...] Read more.
The aim of this work was to analyze and compare the adsorption and desorption processes of carbohydrates (glucose as a model molecule), polyphenols (gallic acid as a model molecule), and proteins (bovine serum albumin, BSA as a model molecule) on alginate microcapsules. The adsorption and desorption processes were described by mathematical models (pseudo-first-order, pseudo-second-order, and Weber–Morris intraparticle diffusion model for adsorption, and first-order, Korsmeyer–Peppas, and the Higuchi model for desorption) in order to determine the dominant mechanisms responsible for both processes. By comparing the values of adsorption rate (k2) and initial adsorption rate (h0) based on the pseudo-first-order model, the lowest values were recorded for BSA (k1 = 0.124 ± 0.030 min−1), followed by glucose (k1 = 0.203 ± 0.041 min−1), while the model-obtained values for gallic acid were not considered significant at p < 0.05. For glucose and gallic acid, the limiting step of the adsorption process is the chemical sorption of substances, and the rate of adsorption does not depend on the adsorbate concentration, but depends on the capacity of the hydrogel adsorbent. Based on the desorption rates determined by the Korsmeyer–Peppas model (k), the highest values were recorded for gallic acid (k = 3.66236 ± 0.20776 g beads/mg gallic acid per min), followed by glucose (k = 2.55760 ± 0.16960 g beads/mg glucose per min) and BSA (k = 0.78881 ± 0.11872 g beads/mg BSA per min). The desorption process from alginate hydrogel microcapsules is characterized by the pseudo Fickian diffusion mechanism. Full article
(This article belongs to the Special Issue Physical and Mechanical Properties of Polymer Gels (2nd Edition))
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