Special Issues

Gels publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Polymer Gels for the Oil and Gas Industry
edited by Lin Li, Yining Wu and
submission deadline 31 Mar 2026 | 12 articles | Viewed by 20260 | Submission Open
Keywords: polymer gels; oil and gas production; oil reservoirs; gel fracturing fluid
(This special issue belongs to the Section Gel Applications)
Next-Generation Hydrogels: Bridging Biology and Engineering for Medical Breakthroughs submission deadline 31 Mar 2026 | 3 articles | Viewed by 4881 | Submission Open
Keywords: hydrogels design; advanced characterization of materials; biomedical applications of hydrogels; hydrogel sterilization; smart hydrogels; biodegradable hydrogels; in situ gelation; multifunctional hydrogels; drug delivery; antimicrobial properties
(This special issue belongs to the Section Gel Applications)
Recent Advances in Multi-Functional Hydrogels
edited by Wenshan Ren, Liang Chen and
submission deadline 31 Mar 2026 | 2 articles | Viewed by 2836 | Submission Open
Keywords: thermo-sensitive hydrogels; photo-sensitive hydrogels; self-healing hydrogels; anti-fouling hydrogels; tough and strong hydrogels; biomedical hydrogels; luminescent hydrogels; hydrogel adhesives; hydrogel sensors; 3D-printed hydrogels; hydrogel-based soft actuators; hydrogel-based electronics
(This special issue belongs to the Section Gel Applications)
Food Gels: Structures, Properties and Applications
edited by , Jianhui Xiao, , Ruixuan Zhao and Jing Li
submission deadline 31 Mar 2026 | 3 articles | Viewed by 2726 | Submission Open
Keywords: structure– property relationships; conditions of gel formation; hydrogels in delivery systems; polysaccharide hydrogels; gel deterioration caused by food processing methods; applications
(This special issue belongs to the Section Gel Applications)
Nature Polymer Gels for Food Packaging
edited by Josefa Martucci and David A. D'Amico
submission deadline 31 Mar 2026 | 1 articles | Viewed by 494 | Submission Open
Keywords: biopolymer; gels; edible films; encapsulation; food packaging; active packaging; smart packaging; food preservation
(This special issue belongs to the Section Gel Applications)
New Gels for Medical Applications submission deadline 31 Mar 2026 | Viewed by 366 | Submission Open
Keywords: hybrid hydrogels; polymer matrices; aerogels; xerogels; micro/nanogels
(This special issue belongs to the Section Gel Chemistry and Physics)
Research and Application of Edible Gels
edited by , , and Huan Zhang
submission deadline 31 Mar 2026 | Viewed by 185 | Submission Open
Keywords: edible gels; stimuli-responsive films; sustainable production; plant-based Proteins; dysphagia-friendly foods; agricultural waste valorization; 3D-printed foods; technical bottlenecks
(This special issue belongs to the Section Gel Applications)
Hydrogels for Encapsulation Applications submission deadline 31 Mar 2026 | Viewed by 86 | Submission Open
Keywords: hydrogels; functionalized hydrogels; stimuli-responsive hydrogels; encapsulation; hydrogel encapsulation systems; hydrogel characterization techniques; encapsulated cells; bacterial encapsulation; encapsulated biomolecules; controlled release; microbial applications; biomedicine; environmental applications; biosensors; biocatalysis
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Aerogel-Based Composites and Their Electrochemical Applications
edited by , Chuanhui Huang and
submission deadline 31 Mar 2026 | Viewed by 69 | Submission Open
Keywords: aerogel; porous materials; composite; electrochemistry; electrocatalyst
(This special issue belongs to the Section Gel Applications)
Current Directions and Prospects of Hydrogels for Biomedical Applications (2nd Edition) submission deadline 31 Mar 2026 | Viewed by 49 | Submission Open
Keywords: hydrogels; stimuli-responsive materials; self-healing; nanocomposite; biomedical application
(This special issue belongs to the Section Gel Applications)
Cellulose-Based Gels: Synthesis, Properties, and Applications (2nd Edition)
edited by
submission deadline 31 Mar 2026 | Viewed by 44 | Submission Open
Keywords: cellulose; cellulose-based gels; cellulose derivatives  ; physico-chemical characterization; biomedical applications; drug delivery; tissue engineering; 3D bioprinting; environmental science  ; food science  ; cellulose synthesis
(This special issue belongs to the Section Gel Applications)
Design of Supramolecular Hydrogels (2nd Edition)
edited by Dipankar Ghosh, Gareth O. Lloyd and Elina I. Sievanen
submission deadline 31 Mar 2026 | Viewed by 41 | Submission Open
Keywords: designing new supramolecular hydrogelators; prediction of gel properties; mechanism of self-assembly; hydrogel characterization; structure– property relationship; applications in diverse fields; smart hydrogels; 3D/4D printing; tissue engineering; regenerative medicine; controlled release systems; biodegradable hydrogels
(This special issue belongs to the Section Gel Analysis and Characterization)
New Advances in Synthesis of Smart and Tough Hydrogel
edited by and Lingyun Wang
submission deadline 31 Mar 2026 | Viewed by 24 | Submission Open
Keywords: smart hydrogel; tough hydrogel; stimuli-responsive; hydrogel; double-network hydrogel; self-healing material; injectable hydrogel; 3D printing; tissue engineering; nanocomposite hydrogel; soft robotics
(This special issue belongs to the Section Gel Analysis and Characterization)
Modification of Gels in Creating New Food Products (2nd Edition) submission deadline 31 Mar 2026 | Viewed by 18 | Submission Open
Keywords: food gels; hydrogels; emulgels; oleogels; aerogels; natural biopolymers; food gel product design; functional food; control digestive or retention; gel property analysis; textural stability and sensory properties; smart packaging
(This special issue belongs to the Section Gel Applications)
Hydrogels: Promising Biomaterials for Wound Healing and Cartilage Regeneration
edited by
submission deadline 31 Mar 2026 | Viewed by 14 | Submission Open
Keywords: biomaterial; hydrogel; wound healing; cartilage regeneration
(This special issue belongs to the Section Gel Applications)
Cellulose and Nanofibers-Based Soft Gels: Synthesis, Properties, and Applications
edited by Min Zhang
submission deadline 31 Mar 2026 | Viewed by 13 | Submission Open
Keywords: soft gels; cellulose and nanofibers; physical or chemical crosslinking; high water retention; biocompatibility; stimuli-responsiveness; biomedical applications; mechanical adaptability; sustainability drive
(This special issue belongs to the Section Gel Chemistry and Physics)
Aerogels: Recent Progress in Novel Applications
edited by and
submission deadline 30 Apr 2026 | 2 articles | Viewed by 1052 | Submission Open
Keywords: aerogels; gels; polymer; biomass; thermal insulation; aerospace
(This special issue belongs to the Section Gel Analysis and Characterization)
Advanced Responsive Hydrogels and Their Applications in Biomedicine and Energy Science
edited by
submission deadline 30 Apr 2026 | Viewed by 172 | Submission Open
Keywords: stimuli-responsive; hybrid hydrogels; smart gel materials; biocompatible; biomaterials; energy science
(This special issue belongs to the Section Gel Processing and Engineering)
3D Printing of Gel-Based Materials (2nd Edition) submission deadline 30 Apr 2026 | Viewed by 60 | Submission Open
Keywords: polymers; 3D printing; hydrogels; bioengineering; bioprinting
(This special issue belongs to the Section Gel Applications)
Synthesis of Novel Antimicrobial Gels
edited by Kun Lei, and
submission deadline 30 Apr 2026 | Viewed by 57 | Submission Open
Keywords: hydrogels; aerogels  ; cryogels; organogels; ionic gels; eutectogels; metal nanoparticles; metallic oxide nanoparticles; antibiotics; biological extracts; synthetic antibacterial drugs; antibacterial polymers; antibacterial peptides; amphoteric ions; photothermal materials; nano-enzymes; covalent organic frameworks
(This special issue belongs to the Section Gel Applications)
Recent Advance in Food Gels (3rd Edition)
edited by and
submission deadline 30 Apr 2026 | Viewed by 45 | Submission Open
Keywords: emerging protein resources; polysaccharides; self-assembly; microstructure
(This special issue belongs to the Section Gel Applications)
Oleogels, Bigels, and Emulgels: Fabrication, Application and Research Trends (2nd Edition)
edited by and
submission deadline 30 May 2026 | Viewed by 23 | Submission Open
Keywords: oleogels; bigels; emulgels; food; oleogelators; textural properties; rheological attributes; sensory evaluation
(This special issue belongs to the Section Gel Applications)
Preparation and Characteristics of Aerogel-Based Materials (2nd Edition)
edited by and
submission deadline 31 May 2026 | 2 articles | Viewed by 1067 | Submission Open
Keywords: aerogels; electrocatalysis; photocatalysis; thermal insulation; density functional theory
(This special issue belongs to the Section Gel Analysis and Characterization)
Physical and Mechanical Properties of Polymer Gels (3rd Edition)
edited by and
submission deadline 31 May 2026 | Viewed by 13 | Submission Open
Keywords: soft matter; rheology; gels; bigels
(This special issue belongs to the Section Gel Analysis and Characterization)
Hydrogels and Organogels for Biomedical Applications
edited by Gi Doo Cha
submission deadline 20 Jun 2026 | Viewed by 76 | Submission Open
Keywords: hydrogel; organogel; organohydrogel; softness; biomedical; biomaterial
(This special issue belongs to the Section Gel Chemistry and Physics)
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