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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Xerogels: Preparation, Properties and Applications submission deadline 10 Sep 2026 | 1 articles | Viewed by 1267 | 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)
Hydrogels: Properties and Applications in Medicine submission deadline 10 Sep 2026 | 1 articles | Viewed by 840 | Submission Open
Keywords: nanoparticles; biofilm; microfluidics; photodynamic therapy; biomaterials
(This special issue belongs to the Section Gel Chemistry and Physics)
Food Gel-Based Systems for Efficient Delivery of Bioactive Ingredients: Design to Application
edited by Yongshuai Ma and
submission deadline 15 Sep 2026 | 1 articles | Viewed by 962 | Submission Open
Keywords: food gels; controlled release; encapsulation; bioactive ingredients; functional foods
(This special issue belongs to the Section Gel Chemistry and Physics)
Phase Transition and Behavior of Gels
edited by Mário Vale and
submission deadline 15 Sep 2026 | Viewed by 489 | Submission Open
Keywords: gels; phase seperation; environmental remediation; catalysis; semiconductors; advanced materials
(This special issue belongs to the Section Gel Analysis and Characterization)
Gel-Based Materials in Food Applications submission deadline 15 Sep 2026 | Viewed by 182 | Submission Open
Keywords: gel-based materials; emulsion stabilization; rheological properties; sensory properties; 3D and 4D printing
(This special issue belongs to the Section Gel Chemistry and Physics)
Innovative Gels: Structure, Properties, and Emerging Applications submission deadline 20 Sep 2026 | 8 articles | Viewed by 14887 | Submission Open
Keywords: hydrogels; organogels; gel characterization; gel properties; gel applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Advancements in Biopolymer-Based Functional Hydrogels for Intelligent Wearable Devices and Textiles
edited by Hong Zhao and
submission deadline 20 Sep 2026 | 2 articles | Viewed by 4545 | Submission Open
Keywords: biopolymer-based hydrogels; sustainable microstructure designs; intelligent wearables
(This special issue belongs to the Section Gel Applications)
Design of Hydrogels and Hydrogel-Derived Materials for Controlled Molecule Release Applications submission deadline 20 Sep 2026 | 1 articles | Viewed by 1012 | 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)
Eco-Friendly Gels for Adsorption (2nd Edition)
edited by and Valentin Popa
submission deadline 20 Sep 2026 | Viewed by 264 | Submission Open
Keywords: gels/biogels/agrogels/hydrogels; adsorption; adsorbents/bioadsorbents; polymers; heavy metal ions; biocides; dye; pollutants; environmental science; wastewater remediation; wastewater treatment; renewable resources; biodegradable materials
(This special issue belongs to the Section Gel Processing and Engineering)
Gels for Biomedical Applications (2nd Edition)
edited by and Sung-Hyuk Sunwoo
submission deadline 20 Sep 2026 | Viewed by 223 | Submission Open
Keywords: gels; hydrogels; smart gels; in situ gels; biomedical applications; drug delivery; tissue engineering; wound healing
(This special issue belongs to the Section Gel Chemistry and Physics)
Application of Smart Gel Material in Flexible and Wearable Electronic (2nd Edition) submission deadline 30 Sep 2026 | 4 articles | Viewed by 11949 | Submission Open
Keywords: smart gel materials; flexible electronics; wearable electronics; gel synthesis; material characterization; electrical conductivity; self-healing capability; stretchability; sensor technology; energy harvesting
(This special issue belongs to the Section Gel Analysis and Characterization)
Women’s Special Issue Series: Gels (2nd Edition) submission deadline 30 Sep 2026 | 6 articles | Viewed by 7849 | 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)
Research on the Applications of Conductive Hydrogels
edited by , Ching-Wen Chang and
submission deadline 30 Sep 2026 | 3 articles | Viewed by 6510 | Submission Open
Keywords: conductive hydrogels; flexible electronics; bioelectronics; biosensors; tissue engineering; wearable devices; soft robotics; material design; biocompatibility; electrochemical properties
(This special issue belongs to the Section Gel Applications)
Polymer-Based Hydrogels Applied in Drug Delivery
edited by Laura Nižić Nodilo and Mario Jug
submission deadline 30 Sep 2026 | 3 articles | Viewed by 6304 | Submission Open
Keywords: polymer-based hydrogel; controlled drug release; targeted drug delivery; rheological characterization; viscoelastic systems; texture analysis; biocompatibility; muco-adhesion; natural polymers; novel (multi)functional polymers
(This special issue belongs to the Section Gel Applications)
State-of-the-Art Food Gels
edited by and Anna Kaminska-Dworznicka
submission deadline 30 Sep 2026 | 4 articles | Viewed by 5074 | 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)
Designing Gels for Wound Healing and Drug Delivery Systems
edited by and
submission deadline 30 Sep 2026 | 3 articles | Viewed by 3654 | Submission Open
Keywords: drug delivery; hydrogels; biodegradable polymers; stimuli-responsive polymers; wound healing
(This special issue belongs to the Section Gel Applications)
Novel Gels for 3D Bioprinting in Tissue Engineering submission deadline 30 Sep 2026 | 2 articles | Viewed by 3238 | Submission Open
Keywords: bioinks; bioprinting; biofabrication; printability; stimuli-responsive gels; rheology; tissue-engineering; 3D bioprinting
(This special issue belongs to the Section Gel Applications)
Biomass-Based Gels
edited by Xia Sun and
submission deadline 30 Sep 2026 | 3 articles | Viewed by 2799 | Submission Open
Keywords: biomass-based gels; physiological signal detection; biopolymers (cellulose; chitosan); wearable biosensors; sustainable/biodegradable materials
(This special issue belongs to the Section Gel Chemistry and Physics)
Nanocomposite Hydrogels for Drug Delivery and Wound Healing
edited by and Hongyun Xuan
submission deadline 30 Sep 2026 | 3 articles | Viewed by 2750 | Submission Open
Keywords: nanocomposite hydrogels; biocompatibility; and intelligent responsiveness; drug delivery; wound healing; release kinetics; tissue regeneration
(This special issue belongs to the Section Gel Applications)
Advances in Biomass-Based Gels: Synthesis, Structure, Properties and Applications
edited by Jiongjiong Li and Liuting Mo
submission deadline 30 Sep 2026 | 3 articles | Viewed by 1867 | Submission Open
Keywords: biomass hydrogels and aerogel: synthesis; structure; properties and applications; cellulose-based hydrogels and aerogels; chitin/chitosan derivates; drug delivery/ tissue engineering; composites and high-performance materials; water-retention performance; detection and environmental protection; application fields of agriculture and medicine
(This special issue belongs to the Section Gel Processing and Engineering)
Biofunctional Hydrogels for Biofabrication in Tissue Engineering submission deadline 30 Sep 2026 | 2 articles | Viewed by 1612 | Submission Open
Keywords: biofunctional hydrogels; tissue engineering; regenerative medicine; 3D bioprinting; bioinks; stimuli-responsive biomaterials; translational biomaterials; biofabrication
(This special issue belongs to the Section Gel Applications)
Hydrogels for Food Safety and Sensing Applications
edited by Yufeng Sun and
submission deadline 30 Sep 2026 | 1 articles | Viewed by 1486 | Submission Open
Keywords: novel hydrogels; sensors; detection; food safety; smart packaging; stimuli-responsive materials
(This special issue belongs to the Section Gel Applications)
Gel Electrolytes and Supercapacitors
edited by and Andrey Dobrynin
submission deadline 30 Sep 2026 | 1 articles | Viewed by 1341 | Submission Open
Keywords: gel electrolytes; energy storage; batteries; supercapacitors; ionic conductivity; electrochemical stability; sustainable materials
(This special issue belongs to the Section Gel Chemistry and Physics)
Food Gels: Structure and Properties (3rd Edition)
edited by
submission deadline 30 Sep 2026 | 1 articles | Viewed by 650 | Submission Open
Keywords: biopolymer; gel; hydrogel; structure; emulsion; food application; 3D printing; interaction
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Advances in the Rheology of Soft Gels
edited by Paulo R. De Souza Mendes and Flávio H. Marchesini
submission deadline 30 Sep 2026 | Viewed by 206 | Submission Open
Keywords: soft gels; rheology; biomedicine; soft robotics; consumer products; drug delivery; 3D-printable bioinks; responsive gels; emerging technologies
(This special issue belongs to the Section Gel Analysis and Characterization)
Smart and Biopolymer-Based Gels for Environmental Applications submission deadline 30 Sep 2026 | Viewed by 199 | Submission Open
Keywords: smart gels; alginate hydrogels; biopolymer-based materials; environmental remediation; stimuli-responsive polymers; water treatment; sustainable materials
(This special issue belongs to the Section Gel Applications)
Next-Generation Food Hydrogels: Structure, Stability, and Processing
edited by Yu Bai and
submission deadline 30 Sep 2026 | Viewed by 192 | Submission Open
Keywords: food hydrogels; biopolymer gels; structure– property; physical stability; hydrogel processing; fermentation
(This special issue belongs to the Section Gel Chemistry and Physics)
Functional Hydrogels in Biomedicine
edited by Peng Zhao and
submission deadline 30 Sep 2026 | Viewed by 160 | Submission Open
Keywords: biomedical hydrogels; polymer networks; smart materials; drug delivery systems; tissue scaffolds; wound healing; 3D bioprinting
(This special issue belongs to the Section Gel Analysis and Characterization)
Environmentally Friendly Gels
edited by Hang Zhang, and
submission deadline 15 Oct 2026 | Viewed by 304 | Submission Open
Keywords: environmentally friendly gels; biodegradable aggregation; synthesis theory; multi-level polymer structures; ion mass transfer
(This special issue belongs to the Section Gel Processing and Engineering)
Edible Gel Platforms for Cell-Based Food Systems
edited by Sohyeon Park
submission deadline 15 Oct 2026 | Viewed by 182 | Submission Open
Keywords: edible gels; food colloids; food gelling; cell-based food; nutrient delivery; biomimetic scaffolds; food innovation
(This special issue belongs to the Section Gel Applications)
Recent Advances in Gels for Pharmaceutical Application
edited by , and Daiva Majienė
submission deadline 20 Oct 2026 | 5 articles | Viewed by 7396 | Submission Open
Keywords: gel; hydrogel; bigels; nanogel; microgel; gel-related formulation; encapsulation techniques; drug delivery; drug targeting
(This special issue belongs to the Section Gel Applications)
Recent Advances in Multi-Material Hydrogel Bioinks for 3D Bioprinting
edited by and
submission deadline 20 Oct 2026 | 2 articles | Viewed by 4056 | Submission Open
Keywords: bioprinting; multi-material bioink; biomaterials; hydrogel; tissue engineering; regenerative medicine; flexible wearable devices; health monitoring
(This special issue belongs to the Section Gel Processing and Engineering)
Gel-Based Drug Delivery Systems for Cancer Treatment (2nd Edition)
edited by and
submission deadline 20 Oct 2026 | 1 articles | Viewed by 2579 | Submission Open
Keywords: functional hydrogel; stimuli-responsive hydrogel (endogenous stimulus: pH; GSH; ROS; MMP2; etc. exogenous stimuli: light; thermo; etc.); bioinspired hydrogel; smart delivery hydrogel; injectable hydrogel (minimally invasive administration); nanogel (systemic administration); hydrogel for combination therapy; chemo-dynamic therapy; immunotherapy; thermotherapy; wound dressing or wound healing
(This special issue belongs to the Section Gel Applications)
Programming Life in Soft Matter: Advances in Hydrogel-Based Living Materials
edited by and Leila Deravi
submission deadline 20 Oct 2026 | Viewed by 161 | Submission Open
Keywords: engineered living materials; cell encapsulation; synthetic biology; biopolymers; cell encapsulation; 3d bioprinting; bioproduction; biohybrid materials; adaptive materials; sustainability
(This special issue belongs to the Section Gel Processing and Engineering)
Biobased Gels: Antimicrobial Design, Characterization, and Biomedical Applications submission deadline 20 Oct 2026 | Viewed by 144 | Submission Open
Keywords: gelation materials; novel gel-based delivery systems; intelligent hydrogels; in situ gels; emulsion gels; nanogels; vesicular gels; microgels; cellulose; starch; chitosan; alginate
(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 25 Oct 2026 | 5 articles | Viewed by 8364 | Submission Open
Keywords: functional hydrogels; biomedical applications; adhesives; smart hydrogels; medical devices; health diagnosis
(This special issue belongs to the Section Gel Applications)
Gels with Health-Promoting Properties submission deadline 25 Oct 2026 | 1 articles | Viewed by 1916 | Submission Open
Keywords: lifestyle-related diseases; diabetes; hypolipidemic; antioxidant; anti-inflammatory; anti-aging; anti-bacterial; anti-fungal; and anti-viral activity; immunomodulatory; polyphenols; hyaluronic acid; gelling agents; nutritional supplements; functional additives; biofilm
(This special issue belongs to the Section Gel Applications)
Hydrogels for Bone Regeneration (2nd Edition)
edited by
submission deadline 30 Oct 2026 | 2 articles | Viewed by 2290 | Submission Open
Keywords: hydrogels; polymer gels; bone; bone regeneration; bone tissue engineering; osteoblasts; osteoclasts
(This special issue belongs to the Section Gel Applications)
Recent Advances in Smart and Tough Hydrogels
edited by Qiang Chen and Xiangling Gu
submission deadline 30 Oct 2026 | 1 articles | Viewed by 1406 | Submission Open
Keywords: high-strength hydrogels; tough hydrogels; smart hydrogels; hydrogel coatings; biomedical hydrogels; hydrogel interfaces; hydrogel sensors; hydrogel robots; hydrogel machines
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Research on Alginate Hydrogels in Bioengineering Applications (2nd Edition) submission deadline 30 Oct 2026 | 1 articles | Viewed by 716 | Submission Open
Keywords: alginate hydrogel; smart hydrogels; bioresponsive hydrogels; processing of hydrogels; material properties; bioengineering applications; biomedical applications
(This special issue belongs to the Section Gel Applications)
Preparation, Structure–Property Relationships, and Applications of Emulsion Gels
edited by Peilong Li, Tongze Zhang, Saphwan Al-Assaf and
submission deadline 31 Oct 2026 | 4 articles | Viewed by 9313 | 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)
Innovations in Application of Biofunctional Hydrogels
edited by and
submission deadline 31 Oct 2026 | 4 articles | Viewed by 9276 | Submission Open
Keywords: hydrogel; biofunctional; tissue engineering; biomedical applications; soft electronics; biomaterial
(This special issue belongs to the Section Gel Analysis and Characterization)
Current Research on Eutectogels submission deadline 31 Oct 2026 | 3 articles | Viewed by 5538 | Submission Open
Keywords: eutectogel; gel; deep eutectic solvents; polymer; biomaterials; applications
(This special issue belongs to the Section Gel Applications)
Gel-Based Scaffolds for Tissue Engineering submission deadline 31 Oct 2026 | 4 articles | Viewed by 3233 | Submission Open
Keywords: tissue engineering; 3D scaffolds; nanotechnology; biomaterials; composites and nanocomposites; fabrication technique; clinical progress; gel and aerogel based on polysaccharides
(This special issue belongs to the Section Gel Applications)
Cellulose-Based Gels: Synthesis, Properties, and Applications (2nd Edition)
edited by
submission deadline 31 Oct 2026 | 4 articles | Viewed by 2513 | 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)
Synthesis, Properties, and Applications of Novel Polymer-Based Gels (2nd Edition)
edited by , and Zhen Gao
submission deadline 31 Oct 2026 | 5 articles | Viewed by 2434 | Submission Open
Keywords: polymer gels; stimuli-responsive; self-healing; nanocomposite; drug delivery; tissue engineering; soft robotics; wastewater treatment; cementitious matrix; flexible electronics; sustainable packaging; agriculture
(This special issue belongs to the Section Gel Applications)
Recent Progress and Advances in Conductive or Smart Functional Polymer Gels
edited by Hyunchul Ahn and
submission deadline 31 Oct 2026 | 2 articles | Viewed by 2032 | 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)
Properties of Hydrogels, Aerogels, and Cryogels Composites (3rd Edition) submission deadline 31 Oct 2026 | 2 articles | Viewed by 1918 | Submission Open
Keywords: biomaterials; porous gels; functional materials; viscoelasticity; interconnectivity; swelling; biomedical and environmental applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Advances in Gel-Based Materials for Cancer Therapy
edited by
submission deadline 31 Oct 2026 | 2 articles | Viewed by 1868 | Submission Open
Keywords: gel-based materials; cancer therapy; drug delivery; synthesis and characterization; stimuli-responsive; immunotherapy
(This special issue belongs to the Section Gel Chemistry and Physics)
Advanced Hydrogels for Regenerative Medicine and Tissue Engineering (4th Edition)
edited by , and
submission deadline 31 Oct 2026 | 1 articles | Viewed by 829 | Submission Open
Keywords: hydrogels; tissue engineering; regenerative medicine; 3D bioprinting; multifunctional; disease models; scaffolds; stem cells; extracellular matrix
(This special issue belongs to the Section Gel Applications)
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