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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Design, Characterization and Applications of Smart Hydrogels
edited by Zhen Zhang and
submission deadline 31 Dec 2025 | Viewed by 511 | 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 304 | Submission Open
Keywords: gels; phase seperation; environmental remediation; catalysis; semiconductors; advanced materials
(This special issue belongs to the Section Gel Analysis and Characterization)
Advanced Synthesis, Functionalization, and Applications of Biomass Hydrogels
edited by Daochen Zhu
submission deadline 31 Dec 2025 | 1 articles | Viewed by 293 | Submission Open
Keywords: lignin hydrogels; functional biomaterials; structure– performance regulation; sustainable polymers; multifunctional applications
(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 Dec 2025 | Viewed by 220 | 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 200 | 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)
Gels for Oral, Maxillofacial, Dental Medicine or Cosmetic Use submission deadline 31 Dec 2025 | 1 articles | Viewed by 157 | 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)
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 20469 | 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 279 | 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 262 | 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 90 | 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 14619 | 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 13266 | 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 11157 | 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 4212 | 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 3383 | 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 227 | 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 14221 | Submission Open
Keywords: aerogel; aerogel composites; simulation; preparation and characterization techniques; applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Food Gels: Gelling Process and Innovative Applications
edited by
submission deadline 31 Jan 2026 | 5 articles | Viewed by 12178 | 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)
Gels for Removal and Adsorption (3rd Edition)
edited by Shiyang Li, and
submission deadline 31 Jan 2026 | 8 articles | Viewed by 11616 | 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)
Advances in Hydrogels for Regenerative Medicine
edited by and Dongdong Zhou
submission deadline 31 Jan 2026 | 6 articles | Viewed by 10230 | 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 6003 | 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 5791 | 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 3096 | 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 | 1 articles | Viewed by 1726 | 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 1445 | Submission Open
Keywords: tissue engineering; hydrogel; tissue/organ restoration; biocompatibility; biomedicine
(This special issue belongs to the Section Gel Applications)
Hydrogels for Tissue Repair: Innovations and Applications
edited by Qi Chen
submission deadline 31 Jan 2026 | 1 articles | Viewed by 953 | Submission Open
Keywords: hydrogels; tissue repair; natural cell microenvironment; bone repair; cartilage repair; myocardial repair
(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 | 1 articles | Viewed by 947 | 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)
Recent Developments in Nanocomposite Hydrogels submission deadline 31 Jan 2026 | Viewed by 621 | Submission Open
Keywords: hydrogels; zeolite; nanoclay; nanoparticles; biodegradability; biocompatibility; innovative technology; natural polymers; controlled release; 3D printer
(This special issue belongs to the Section Gel Applications)
Gel Electrolytes and Supercapacitors
edited by Mobinul Islam and Andrey Dobrynin
submission deadline 31 Jan 2026 | Viewed by 201 | 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)
Environmentally Friendly Gels
edited by Hang Zhang, and
submission deadline 31 Jan 2026 | Viewed by 163 | 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)
Gel-Based Novel Wound Dressing (2nd Edition) submission deadline 31 Jan 2026 | Viewed by 127 | Submission Open
Keywords: hydrogel dressings; biological characterization; sorption properties; drug release; mechanical characteristics; antimicrobial activity; rheological properties
(This special issue belongs to the Section Gel Applications)
Gels for Adsorption and Separation
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 118 | Submission Open
Keywords: gel materials; adsorption and separation; smart gel; efficiency; capacity; and selectivity; composition and structure of gels
(This special issue belongs to the Section Gel Applications)
Liposomal and Ethosomal Gels: From Design to Application (2nd Edition) submission deadline 15 Feb 2026 | 4 articles | Viewed by 13816 | Submission Open
Keywords: liposomes; niosomes; ethosomes; hydrogels; topical application; vesicular gels; formulation; characterization
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Carbon Gels: From Synthesis to Electrochemical and (Bio)analytical Applications
edited by Ana Casanova and Sébastien Schaefer
submission deadline 15 Feb 2026 | 3 articles | Viewed by 6642 | Submission Open
Keywords: carbon gels; novel synthesis approaches; electrochemical applications; electroanalysis applications
(This special issue belongs to the Section Gel Processing and Engineering)
Cellulose-Based Hydrogels for Advanced Applications submission deadline 15 Feb 2026 | 2 articles | Viewed by 1472 | Submission Open
Keywords: cellulose; hydrogels; wound dressing; tissue engineering; regenerative medicine; three-dimensional bioprinting; biosensors; cosmetics; environmental applications; food industry; energy storage
(This special issue belongs to the Section Gel Chemistry and Physics)
Design, Fabrication, and Applications of Food Composite Gels
edited by Shima Momen and
submission deadline 20 Feb 2026 | 4 articles | Viewed by 16170 | Submission Open
Keywords: food texture; nutritional benefits; innovative food products; component interactions; hydrogel; protein functionality; plant protein; encapsulation; bioactive compounds; food engineering
(This special issue belongs to the Section Gel Processing and Engineering)
Structured Gels: Mechanics, Responsivity and Applications (2nd Edition)
edited by and Shuwang Wu
submission deadline 20 Feb 2026 | 2 articles | Viewed by 3379 | Submission Open
Keywords: structure– property relationship; mechanical properties; responsivity; diffusivity; sensitivity; adhesion energy
(This special issue belongs to the Section Gel Analysis and Characterization)
Green Gels—Design, Optimization and Applications in Water Depollution submission deadline 20 Feb 2026 | 1 articles | Viewed by 2443 | Submission Open
Keywords: gel formulation; tailored design; water contaminants; eco-friendly water remediation; wastewater treatment optimization
(This special issue belongs to the Section Gel Chemistry and Physics)
Gels with Health-Promoting Properties submission deadline 20 Feb 2026 | Viewed by 89 | 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)
Innovations in Application of Biofunctional Hydrogels
edited by and
submission deadline 25 Feb 2026 | 1 articles | Viewed by 2332 | Submission Open
Keywords: hydrogel; biofunctional; tissue engineering; biomedical applications; soft electronics; biomaterial
(This special issue belongs to the Section Gel Analysis and Characterization)
Functional Gel Materials: Chemistry, Processing, Mechanical Performance, and Applications
edited by Zhaohan Yu and Xiaolin Qiu
submission deadline 28 Feb 2026 | 5 articles | Viewed by 10737 | Submission Open
Keywords: functional gel materials; gel synthesis; tough hydrogel; biomedical; energy harvesting; elastocaloric polymer; self-healing; flexible electronics
(This special issue belongs to the Section Gel Applications)
Synthesis, Properties, and Applications of Novel Polymer-Based Gels
edited by , and Zhen Gao
submission deadline 28 Feb 2026 | 9 articles | Viewed by 8458 | 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)
Innovative Applications of Gelated Matrices in Biomedical and Environmental Engineering submission deadline 28 Feb 2026 | 4 articles | Viewed by 6383 | Submission Open
Keywords: gelated matrices; hydrogels; gelation mechanisms; biocompatible gels; drug delivery systems; tissue engineering; wound healing; biosensing; stimuli-responsive gels; multifunctional gels; organogels; gel nanoparticles; gel formulation; nanogels; gel rheology
(This special issue belongs to the Section Gel Applications)
Cellulose Gels: Properties and Prospective Applications
edited by Xiaopeng Peng
submission deadline 28 Feb 2026 | 4 articles | Viewed by 5634 | Submission Open
Keywords: hydrogels; nanocellulose; cellulose nanocrystals; nanofibrillated cellulose; bacterial nanocellulose; biodegradable; biocompatible
(This special issue belongs to the Section Gel Analysis and Characterization)
Novel Functional Gels for Biomedical Applications (2nd Edition)
edited by Jilong Wang
submission deadline 28 Feb 2026 | 4 articles | Viewed by 4610 | Submission Open
Keywords: gels; biomimetic gels; drug delivery; inflammatory microenvironment regulation; cancer therapy
(This special issue belongs to the Section Gel Applications)
Stretchable Conductive Hydrogel Materials for Flexible Sensors and Bioelectronics
edited by
submission deadline 28 Feb 2026 | 1 articles | Viewed by 4342 | Submission Open
Keywords: stretchable conductive hydrogels; flexible sensors; bioelectronic devices; mechanical flexibility; physiological monitoring
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Advances in Hydrogels for Tissue Engineering Applications submission deadline 28 Feb 2026 | 3 articles | Viewed by 4003 | Submission Open
Keywords: hydrogels; tissue engineering; bioink formulations; 3D bioprinting; cells; biomolecules; polymers; injectable; biomimetic; stimuli-responsive hydrogels
(This special issue belongs to the Section Gel Applications)
Gels for Efficient Energy Storage and Conversion
edited by
submission deadline 28 Feb 2026 | 1 articles | Viewed by 2484 | Submission Open
Keywords: gels; soft materials; energy storage and conversion; batteries; supercapacitors; fuel cells; water electrolysis systems; solar cells; catalysis-driven research
(This special issue belongs to the Section Gel Analysis and Characterization)
State-of-the-Art Gel Research in Italy (2nd Edition) submission deadline 28 Feb 2026 | 1 articles | Viewed by 2450 | Submission Open
Keywords: gels; supramolecular gels; macromolecular gels; gel-based materials; hydrogels; organogels; metallogels; aerogels; gel composites; functional gels; gel applications
(This special issue belongs to the Section Gel Applications)
Polymeric Hydrogels for Biomedical Application (2nd Edition) submission deadline 28 Feb 2026 | 2 articles | Viewed by 1985 | Submission Open
Keywords: polymers; hydrogels; crosslinking; radiation; biocompatibility; drug delivery; wound healing; tissue engineering
(This special issue belongs to the Section Gel Processing and Engineering)
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