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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Innovative Gels: Structure, Properties, and Emerging Applications submission deadline 20 Dec 2025 | 5 articles | Viewed by 6473 | Submission Open
Keywords: hydrogels; organogels; gel characterization; gel properties; gel applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Hydrogel-Based Scaffolds with a Focus on Medical Use (3rd Edition)
edited by and
submission deadline 20 Dec 2025 | 3 articles | Viewed by 4906 | Submission Open
Keywords: hydrogel-based scaffolds; resorbable scaffolds; synthesis of biomaterials; mesenchymal stromal cells; bioengineered models; bone regeneration; cartilage regeneration; skin regeneration
(This special issue belongs to the Section Gel Applications)
Gels for Energy Applications
edited by Panpan Zhao and
submission deadline 20 Dec 2025 | 2 articles | Viewed by 3569 | Submission Open
Keywords: gels; bio-based materials; phase change materials; energy storage/release; thermal management
(This special issue belongs to the Section Gel Applications)
Synthesis and Applications of Hydrogels (3rd Edition)
edited by
submission deadline 20 Dec 2025 | 3 articles | Viewed by 3531 | Submission Open
Keywords: biomaterials; sensors and actuators; adhesives; flexible electronics; 3D printing; drug delivery; network
(This special issue belongs to the Section Gel Chemistry and Physics)
Advances in Cellulose-Based Gels submission deadline 20 Dec 2025 | 1 articles | Viewed by 518 | Submission Open
Keywords: biomedical applications; drug delivery systems; functional biomaterials; environmental application; electrochemical materials; coatings and films; sustainable materials
(This special issue belongs to the Section Gel Chemistry and Physics)
Natural Bioactive Compounds and Gels submission deadline 25 Dec 2025 | 5 articles | Viewed by 22391 | Submission Open
Keywords: polyphenols; bioactive compounds; HPLC; biological activity; gelling agents; food fortification; functional additives; bioavailability; active coatings; micro- and nanocapsules; carbohydrates; hydrocolloids; rheology; thixotropy
(This special issue belongs to the Section Gel Applications)
Gels: 10th Anniversary submission deadline 31 Dec 2025 | 13 articles | Viewed by 28128 | Submission Open
Keywords: hydrogels with hierarchical and self-assembled structures; environmentally sustainable; compatible and resorbable hydrogels; load-bearing and self-healing hydrogels; hydrogels for cell encapsulation and bio-fabrication; hydrogels for micro-patterning; micro-fluidic devices and high-throughput screening; hydrogels for injectable; in situ gelling and minimally invasive applications; hydrogels for modulating the immune response; hydrogels for spatiotemporal delivery of growth factors; particulate; nano- and micro-structured hydrogels for drug delivery; hydrogels for protein; RNA and DNA delivery; hydrogels in medicine; biotechnology and pharmacy; hydrogels in tissue engineering and regenerative medicine; hydrogels in cosmetics; hygiene and personal care products; hydrogels in agriculture; food production and eco-friendly applications; hydrogels in electro-magneto-mechanical devices; hydrogels in oil and gas exploration; hydrogels in energy applications; hydrogel in chemical processing
(This special issue belongs to the Section Gel Applications)
Advanced Hydrogels for Tissue Engineering and Drug Delivery (2nd Edition)
edited by
submission deadline 31 Dec 2025 | 5 articles | Viewed by 24881 | Submission Open
Keywords: biomaterial; hydrogel; tissue engineering; smart drug delivery; biopolymers
(This special issue belongs to the Section Gel Applications)
Thixotropic Gels: Mechanisms, Functions and Applications submission deadline 31 Dec 2025 | 6 articles | Viewed by 18648 | Submission Open
Keywords: thixotropy; self-assembly; organogels; rheology; applications; 3D-printing gels
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Advances in Biopolymer Gels (2nd Edition) submission deadline 31 Dec 2025 | 7 articles | Viewed by 12907 | Submission Open
Keywords: synthesis and characterization of biodegradable biopolymers; approaches for biodegradable biopolymers (wastewater treatment); biodegradable biopolymeric material with properties of detoxification; bioremediation; or bio-absorption; biopolymer gels in the food industry; biopolymer gels for controlled release
(This special issue belongs to the Section Gel Analysis and Characterization)
Smart Hydrogel for Wound Healing and Tissue Repair
edited by Xiayi Xu and Boguang Yang
submission deadline 31 Dec 2025 | 2 articles | Viewed by 11139 | Submission Open
Keywords: hydrogel; wound healing; tissue repair; stimuli-responsive; wound dressing; regenerative medicine; biomedical application; anti-inflammation; biomaterials; bio-adhesion
(This special issue belongs to the Section Gel Analysis and Characterization)
State-of-the Art Gel Research in USA submission deadline 31 Dec 2025 | 3 articles | Viewed by 10698 | Submission Open
Keywords: gels; chemistry; physics; characterization; processing; applications
(This special issue belongs to the Section Gel Chemistry and Physics)
Advanced Gels in the Food System
edited by Xiaokang Na, Wuchao Ma and
submission deadline 31 Dec 2025 | 4 articles | Viewed by 6001 | Submission Open
Keywords: protein hydrogels; polysaccharide gels; nanogels; oleogels; food texture improvement; sustainable food development
(This special issue belongs to the Section Gel Analysis and Characterization)
Preparation, Structure-Property Relationships, and Applications of Emulsion Gels
edited by Peilong Li, Tongze Zhang, Saphwan Al-Assaf and
submission deadline 31 Dec 2025 | 3 articles | Viewed by 4862 | Submission Open
Keywords: emulsion; gel; polymer; oil; rheology; interfacial phenomena; microstructure; food structuring; bioactive delivery
(This special issue belongs to the Section Gel Analysis and Characterization)
Hydrogels with Appropriate/Tunable Properties for Biomedical Applications (3rd Edition)
edited by , and Feifei Sun
submission deadline 31 Dec 2025 | 4 articles | Viewed by 4805 | Submission Open
Keywords: functional hydrogels; biomedical applications; adhesives; smart hydrogels; medical devices; health diagnosis
(This special issue belongs to the Section Gel Applications)
Functional Hydrogels: Design, Processing and Biomedical Applications
edited by and
submission deadline 31 Dec 2025 | 2 articles | Viewed by 3850 | Submission Open
Keywords: functional hydrogels; biomedical applications; drug delivery systems; tissue engineering; 3D bioprinting; stimuli-responsive materials; regenerative medicine
(This special issue belongs to the Section Gel Applications)
Innovative Approaches of Biopolymer-Based Hydrogels: Development, Characterization, and Biomedical Applications submission deadline 31 Dec 2025 | 5 articles | Viewed by 3823 | Submission Open
Keywords: hydrogels; biopolymer; sensitive hydrogels; functional hydrogels; biomaterials; synthetic materials; drug delivery; cell carrier; tissue engineering
(This special issue belongs to the Section Gel Applications)
Conductive Gels: Preparation, Properties and Applications submission deadline 31 Dec 2025 | 1 articles | Viewed by 3056 | Submission Open
Keywords: hydrogels; aerogels; cryogels; composites; electronic conductivity; conducting polymers; carbon materials; conducting fillers; self-healing; stimuli-responsive behavior; sensors; energy storage; drug delivery; water purification
(This special issue belongs to the Section Gel Applications)
Polymer Gels for Oil Recovery and Industry Applications
edited by Yinbo He, , and Jingyang Pu
submission deadline 31 Dec 2025 | 3 articles | Viewed by 2608 | Submission Open
Keywords: polymer gel; polymer flooding; enhanced oil recovery; intelligent gel; temperature resistance; salt resistance; flow behavior
(This special issue belongs to the Section Gel Applications)
Recent Advances in Multi-Functional Polymer-Based Hydrogels submission deadline 31 Dec 2025 | 2 articles | Viewed by 2500 | Submission Open
Keywords: multi-functional polymer-based hydrogels; biomedicine; environmental science; soft robotics; mechanical strength; self-healing properties; stimuli-responsive behavior; conductivity; bioactivity
(This special issue belongs to the Section Gel Analysis and Characterization)
Safety of Aerogel Materials
edited by and
submission deadline 31 Dec 2025 | 1 articles | Viewed by 2138 | Submission Open
Keywords: aerogels; safety; safety characteristics; thermal safety; environmental impacts; process safety; occupational health risks; lifecycle assessment; safety applications
(This special issue belongs to the Section Gel Processing and Engineering)
Novel Gels for 3D Bioprinting in Tissue Engineering submission deadline 31 Dec 2025 | 2 articles | Viewed by 2114 | Submission Open
Keywords: bioinks; bioprinting; biofabrication; printability; stimuli-responsive gels; rheology; tissue-engineering; 3D bioprinting
(This special issue belongs to the Section Gel Applications)
Advances in Engineering Emulsion Gels for Food Application submission deadline 31 Dec 2025 | 2 articles | Viewed by 1688 | Submission Open
Keywords: food gels; hydrogels; emulgels; oleogels; natural biopolymers; food gel product design; functional food
(This special issue belongs to the Section Gel Processing and Engineering)
Gels for Oral, Maxillofacial, Dental Medicine or Cosmetic Use submission deadline 31 Dec 2025 | 1 articles | Viewed by 624 | Submission Open
Keywords: gel-based materials; oral; maxillofacial; and dental medicine; cosmetic; smart hydrogels; bioengineered gel-based systems
(This special issue belongs to the Section Gel Applications)
Advanced Synthesis, Functionalization, and Applications of Biomass Hydrogels
edited by Daochen Zhu
submission deadline 31 Dec 2025 | 1 articles | Viewed by 571 | Submission Open
Keywords: lignin hydrogels; functional biomaterials; structure– performance regulation; sustainable polymers; multifunctional applications
(This special issue belongs to the Section Gel Applications)
Design, Characterization and Applications of Smart Hydrogels
edited by Zhen Zhang and
submission deadline 31 Dec 2025 | Viewed by 521 | Submission Open
Keywords: smart hydrogels; design; characterization; application; self-healing; stimuli-responsive materials; environmental sensitivity; drug delivery; tissue engineering; sensors; actuators; reversible volume change; shape adaptability
(This special issue belongs to the Section Gel Applications)
Phase Transition and Behavior of Gels
edited by Mário Vale and
submission deadline 31 Dec 2025 | Viewed by 318 | Submission Open
Keywords: gels; phase seperation; environmental remediation; catalysis; semiconductors; advanced materials
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Progress and Advances in Conductive or Smart Functional Polymer Gels
edited by Hyunchul Ahn and
submission deadline 31 Dec 2025 | Viewed by 236 | Submission Open
Keywords: conducive gel; functional gel; smart gel and composites; hydrogel; biomedical gel; energy application; gel synthesis and design; gel modeling and characterization; scaffold and structure
(This special issue belongs to the Section Gel Analysis and Characterization)
Advances in Implantable Gel-Based Materials for Cosmetic Applications
edited by Danny Soares, and
submission deadline 31 Dec 2025 | Viewed by 214 | Submission Open
Keywords: hyaluronic acid (HA) gels; calcium hydroxyapatite (CaHA); carboxymethyl cellulose (CMC); poly-L-lactic acid (PLLA); gel strength; resiliency; cohesion; viscoelasticity; mechanical properties; material biointegration; product migration; displacement; chronic edema; lymphatic dysfunction; inflammatory nodules; cold nodules; biofilm infections; arterioembolic injuries; next-generation dermal fillers; material-– tissue interactions; advanced filler technologies; regenerative aesthetics
(This special issue belongs to the Section Gel Processing and Engineering)
Applications of Gels for Enhanced Oil Recovery
edited by Ming Qu, Mingguo Peng and Tuo Liang
submission deadline 15 Jan 2026 | 16 articles | Viewed by 22854 | Submission Open
Keywords: enhanced oil recovery of gels; preparation and synthesis of innovative gels; environmentally friendly gels; percolation behaviors of gels; nanomaterials that improve gel properties; profile control and water plugging of gels; CCUS; shale oil; tight oil; low-permeability reservoir; conventional reservoir; fractured-vuggy reservoir; numerical simulation
(This special issue belongs to the Section Gel Applications)
Xerogels: Preparation, Properties and Applications submission deadline 15 Jan 2026 | Viewed by 298 | Submission Open
Keywords: synthesis of xerogels; sol– gel techniques; physicochemical characterization; synthesis parameters optimization; structure– properties relationship; xerogel applications; water treatment applications; heterogeneous catalysis; biocompatibility assessment; membrane preparation
(This special issue belongs to the Section Gel Chemistry and Physics)
Advances in Multi-Material Hydrogel for 3D Bioprinting
edited by Hatai Jongprasitkul, David A. Fulton and
submission deadline 15 Jan 2026 | Viewed by 278 | Submission Open
Keywords: 3D bioprinting; bioinks; multi-hydrogel system; hybrid hydrogels; self-healing hydrogels; dynamic hydrogels; photocrosslinking; rheology; tissue engineering
(This special issue belongs to the Section Gel Chemistry and Physics)
Design of Hydrogels and Hydrogel-Derived Materials for Controlled Molecule Release Applications submission deadline 15 Jan 2026 | Viewed by 103 | Submission Open
Keywords: controlled release; stimuli-responsive hydrogels; smart hydrogels; hydrogel-derived materials; drug delivery systems; injectable hydrogels; agrochemical delivery systems; sustained nutrient release; active packaging materials; environmentally friendly packaging
(This special issue belongs to the Section Gel Processing and Engineering)
Biosoursed and Bioinspired Gels for Biomedical Applications (2nd Edition)
edited by
submission deadline 20 Jan 2026 | 5 articles | Viewed by 15487 | Submission Open
Keywords: biomacromolecules; hydrogel; low-molecular-weight gelator; 3D printing; drug delivery; self-healing; cell culture
(This special issue belongs to the Section Gel Applications)
Application of Gel Technology in Food Industry and Environmental Engineering (2nd Edition) submission deadline 20 Jan 2026 | 6 articles | Viewed by 14225 | Submission Open
Keywords: natural biopolymers; gelling agents; multi-component gels; food applications; sol– gel materials for environmental; electronic; and energy applications; specific pollutant removal techniques; specific materials and system of interest; advanced materials with applications in environmental engineering
(This special issue belongs to the Section Gel Applications)
Recent Advances in Hydrogels for Biomedical Application (2nd Edition)
edited by Kai Liu
submission deadline 20 Jan 2026 | 4 articles | Viewed by 12210 | Submission Open
Keywords: hydrogels; spatiotemporal control; cell culture; tissue engineering; drug delivery; theranostics; biomedical applications
(This special issue belongs to the Section Gel Processing and Engineering)
Hydrogel-Based Flexible Electronics and Devices submission deadline 20 Jan 2026 | 2 articles | Viewed by 4472 | Submission Open
Keywords: hydrogel applications; flexible devices; flexible electronics; wearable electronics; flexible biosensors; soft robotics
(This special issue belongs to the Section Gel Applications)
Designing Gels for Wound Dressing (2nd Edition) submission deadline 20 Jan 2026 | 2 articles | Viewed by 3841 | Submission Open
Keywords: hydrogels; biopolymers; nanocomposite; antibacterial; wound healing; wound dressing; wound management
(This special issue belongs to the Section Gel Applications)
Hydrogelated Matrices: Structural, Functional and Applicative Aspects (2nd Edition) submission deadline 20 Jan 2026 | Viewed by 233 | Submission Open
Keywords: hydrogelated matrices; supramolecular aggregates; peptide-based aggregates; hydrogels formulation and characterization; nanogels formulation and characterization; nanofibers; multicomponent gels; organogels; soft materials; biotechnological applications; supramolecular agents for bioimaging; active pharmaceutical ingredient (API) delivery; surfaces and coating
(This special issue belongs to the Section Gel Chemistry and Physics)
Recent Advances in Aerogels and Aerogel Composites
edited by , Xianbo Hou and Lin Guo
submission deadline 31 Jan 2026 | 6 articles | Viewed by 15054 | Submission Open
Keywords: aerogel; aerogel composites; simulation; preparation and characterization techniques; applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Gels for Removal and Adsorption (3rd Edition)
edited by Shiyang Li, and
submission deadline 31 Jan 2026 | 8 articles | Viewed by 13325 | Submission Open
Keywords: aerogels; hydrogels; membranes; films; adsorbents; removal; environmental science; novel gels; wastewater treatment; microplastic adsorption; drug adsorption/release; environmental catalysis
(This special issue belongs to the Section Gel Applications)
Food Gels: Gelling Process and Innovative Applications
edited by
submission deadline 31 Jan 2026 | 5 articles | Viewed by 13019 | Submission Open
Keywords: hydrogel; packaging films; edible coatings; emulsions; bio-functionalization; structure and performance regulation; biomaterials
(This special issue belongs to the Section Gel Applications)
Advances in Hydrogels for Regenerative Medicine
edited by and Dongdong Zhou
submission deadline 31 Jan 2026 | 6 articles | Viewed by 11932 | Submission Open
Keywords: hydrogels; regenerative medicine; biomaterials; tissue engineering; drug delivery; 3D bioprinting; scaffold design; biocompatibility; stimuli-responsive hydrogels
(This special issue belongs to the Section Gel Processing and Engineering)
Hydrogels, Microgels, and Nanogels: From Fundamentals to Applications (3rd Edition) submission deadline 31 Jan 2026 | 5 articles | Viewed by 6967 | Submission Open
Keywords: hydrogels; microgels; polymers; colloids; synthesis; characterization; applications; swelling; phase behaviour; stimuli-responsive
(This special issue belongs to the Section Gel Analysis and Characterization)
Properties and Applications of Biomaterials Related to Gels (3rd Edition)
edited by
submission deadline 31 Jan 2026 | 6 articles | Viewed by 6601 | Submission Open
Keywords: hydrogel; hemostasis; cell cryopreservation; drug delivery; wound dressing
(This special issue belongs to the Section Gel Applications)
Women’s Special Issue Series: Gels (2nd Edition) submission deadline 31 Jan 2026 | 3 articles | Viewed by 3491 | Submission Open
Keywords: supramolecular materials; nano-structured materials (particles; fibres; colloids; composites); nano- and macroporous materials (aerogels; organogels; metallogels; xerogels; cryogels; hydrogels); functional coatings; thin films; and membranes (including deposition techniques); development and characterization of sol– gel and hybrid materials; modelling; computational tools; and theoretical studies on gels; gel materials for biological and health (medical) applications; polymer gels; protein gels; and self-healing gels; sol– gel and hybrid materials with surface modifications for applications; devices based on sol– gel or hybrid materials; structure; dynamics; kinetics; and equilibrium thermodynamics in gel structures; biomimetic hydrogels as tissue engineering 3D scaffolds for mechanically supporting cells in the engineered tissues; and to simulate the native extracellular matrix
(This special issue belongs to the Section Gel Applications)
Food Gels: Gelling Process and New Applications
edited by Xin Du and
submission deadline 31 Jan 2026 | 2 articles | Viewed by 2350 | Submission Open
Keywords: muscle food; biopolymers; protein; gelation properties; development of novel food gels
(This special issue belongs to the Section Gel Applications)
Hydrogels for Tissue Engineering
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1645 | Submission Open
Keywords: tissue engineering; hydrogel; tissue/organ restoration; biocompatibility; biomedicine
(This special issue belongs to the Section Gel Applications)
State-of-the-Art Food Gels
edited by and Anna Kaminska-Dworznicka
submission deadline 31 Jan 2026 | 3 articles | Viewed by 1591 | Submission Open
Keywords: food gels; starch; oleogels; food hydrocolloids; natural biopolymers; food texture and rheology; functional food; dried gels; aerated gels; gelling agents; 3D printing
(This special issue belongs to the Section Gel Chemistry and Physics)
Hydrogels for Tissue Repair: Innovations and Applications
edited by Qi Chen
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1094 | Submission Open
Keywords: hydrogels; tissue repair; natural cell microenvironment; bone repair; cartilage repair; myocardial repair
(This special issue belongs to the Section Gel Applications)
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