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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Gels for Plant-Based Food Applications (2nd Edition)
edited by and
submission deadline 15 Jun 2026 | 5 articles | Viewed by 6006 | Submission Open
Keywords: proteins; polysaccharides; lipids; gel structural analysis; gel properties characterization; characterization methods; extrusion technology (especially high-moisture extrusion); plant-based foods; quality improvement
(This special issue belongs to the Section Gel Applications)
Food Gels: Structure and Function (2nd Edition)
edited by Longwei Jiang, , and Xiaoxia Yan
submission deadline 15 Jun 2026 | 5 articles | Viewed by 5469 | Submission Open
Keywords: food gels; polymers; polysaccharide; protein; structure; chemical and physicochemical characterization; film-forming properties; food quality
(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 | 2 articles | Viewed by 6150 | Submission Open
Keywords: hydrogel; organogel; organohydrogel; softness; biomedical; biomaterial
(This special issue belongs to the Section Gel Chemistry and Physics)
Hydrogel for Tissue Engineering and Biomedical Therapeutics (2nd Edition)
edited by
submission deadline 20 Jun 2026 | 3 articles | Viewed by 4563 | Submission Open
Keywords: hydrogel; tissue engineering; biomedical therapeutics; biomimetic scaffolds; drug delivery; regenerative medicine; cell– material interactions
(This special issue belongs to the Section Gel Applications)
Polymer Gels for Sensor Applications
edited by , and Francis Vocanson
submission deadline 20 Jun 2026 | 2 articles | Viewed by 3774 | Submission Open
Keywords: polymer gels; sensing; monitoring; smart materials; functional gels; environmental sensors; optical sensors; electrochemical sensors; hydrogel sensors; sol-gel sensors
(This special issue belongs to the Section Gel Processing and Engineering)
Hydrogel for Sustained Delivery of Therapeutic Agents (3rd Edition) submission deadline 30 Jun 2026 | 3 articles | Viewed by 16630 | Submission Open
Keywords: hydrogels; drug delivery; therapeutic agents; natural biopolymers; aerogels; polymer gel properties; biomedical applications; tissue engineering; smart hydrogels; stimuli-responsive gels; biomaterials; physical– chemical characterization; 3D printing; structure– property relationship; regenerative medicine
(This special issue belongs to the Section Gel Applications)
Nanogels and Microgels: Fundamental Studies, Applications, and Emerging Trends
edited by Guang Chen and Jiaxing Yuan
submission deadline 30 Jun 2026 | 6 articles | Viewed by 11260 | Submission Open
Keywords: volume phase transition; non-equilibrium swelling/collapse dynamics; stimuli responsive behaviors; drug delivery systems; soft actuators and robotics; biosensors; polymer network
(This special issue belongs to the Section Gel Chemistry and Physics)
Application of Hydrogels in Medicine
edited by and Zbigniew Pasieka
submission deadline 30 Jun 2026 | 4 articles | Viewed by 10876 | Submission Open
Keywords: biomaterials; medical application; gels; hydrogels; biomedical applications; drug delivery; therapy; tissue engineering; wound healing; biosensing; cancer therapy; medicine; disease treatment; polymers
(This special issue belongs to the Section Gel Applications)
Designing Gels for Wound Dressing (2nd Edition) submission deadline 30 Jun 2026 | 6 articles | Viewed by 9608 | Submission Open
Keywords: hydrogels; biopolymers; nanocomposite; antibacterial; wound healing; wound dressing; wound management
(This special issue belongs to the Section Gel Applications)
Gel-Based Materials for Biomedical Engineering (2nd Edition)
edited by and
submission deadline 30 Jun 2026 | 3 articles | Viewed by 8153 | Submission Open
Keywords: biomaterials; hydrogels; injectable hydrogels; cryogels; tissue engineering; wound healing; drug delivery; heart failure
(This special issue belongs to the Section Gel Chemistry and Physics)
Advances in Composite Gels (3rd Edition)
edited by
submission deadline 30 Jun 2026 | 5 articles | Viewed by 7084 | Submission Open
Keywords: nanocomposite hydrogels; bio-based composite hydrogels; organic– inorganic composite hydrogels
(This special issue belongs to the Section Gel Processing and Engineering)
Recent Advances in Soft Gels in the Food Industry and Technology submission deadline 30 Jun 2026 | 3 articles | Viewed by 7032 | Submission Open
Keywords: soft gels; food texture; gelling agents; food industry applications; sustainable food technology; nutritional enhancement; flavor release systems; bioactive compound delivery; microstructure analysis; shelf-life extension
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Functional and Intelligent Hydrogels
edited by and
submission deadline 30 Jun 2026 | 3 articles | Viewed by 7027 | Submission Open
Keywords: functional/multi-functional hydrogels; intelligent/smart hydrogels; inspection/detection; adsorption/separation; anti-bacteria/anti-adhesion; biomimetic actuators; sensors/displayers
(This special issue belongs to the Section Gel Chemistry and Physics)
Edible Gel Coatings and Membranes submission deadline 30 Jun 2026 | 2 articles | Viewed by 6666 | Submission Open
Keywords: biopolymers; edible films and coatings; essential oils; natural extracts; emulsions; nanoemulsions; nanoparticles; active packaging
(This special issue belongs to the Section Gel Applications)
Research and Application of Injectable Hydrogels
edited by and
submission deadline 30 Jun 2026 | 2 articles | Viewed by 5620 | Submission Open
Keywords: injectable hydrogel; biomechanics drug delivery; stimuli-responsive hydrogel; theranostics
(This special issue belongs to the Section Gel Applications)
Functional Hydrogels for Soft Electronics and Robotic Applications
edited by
submission deadline 30 Jun 2026 | 3 articles | Viewed by 5027 | Submission Open
Keywords: synthesis of functional hydrogel; processing of functional hydrogel; stimuli-responsive hydrogel; conductive hydrogel; organogel; ionogel; soft electronics; soft robotics
(This special issue belongs to the Section Gel Processing and Engineering)
Polysaccharide-Based Gels
edited by Longxiang Zhu
submission deadline 30 Jun 2026 | 3 articles | Viewed by 3400 | Submission Open
Keywords: polysaccharide; hydrogel; multi-functionalization; biomedicine; biodegradable; wearable sensors; packaging
(This special issue belongs to the Section Gel Chemistry and Physics)
Safety of Aerogel Materials
edited by and
submission deadline 30 Jun 2026 | 1 articles | Viewed by 2878 | 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)
Preparation and Application of New Gel Adsorption Materials
edited by Yun Deng and
submission deadline 30 Jun 2026 | 3 articles | Viewed by 2808 | Submission Open
Keywords: aerogels; hydrogels; membranes; films; adsorbents; removal; environmental science; novel gels; wastewater treatment; microplastic adsorption; drug adsorption/release; water-retaining agents; fertilizers; pollutant removal; soil nutrients; air purification
(This special issue belongs to the Section Gel Applications)
Composite Gel Systems: Materials, Formation Behaviors and Functional Food Packaging Applications
edited by Juncai Tu and Jun Guo
submission deadline 30 Jun 2026 | 2 articles | Viewed by 2077 | Submission Open
Keywords: green edible biopolymers; composite film structure and function; gel formation mechanism; structure– activity relationship; active ingredient delivery systems
(This special issue belongs to the Section Gel Applications)
Functional Hydrogels for Advanced Health Monitoring Systems
edited by Fei Han
submission deadline 30 Jun 2026 | 1 articles | Viewed by 1980 | Submission Open
Keywords: hydrogel; physiological signal monitoring; conductivity; self-healing; adhesive properties; sensors; wearable; diagnostic applications
(This special issue belongs to the Section Gel Applications)
Selected Papers from the 1st International Online Conference on Gels
edited by
submission deadline 30 Jun 2026 | Viewed by 642 | Submission Open
Keywords: colloidal gels; polyelectrolyte gels; biopolymer gels; smart gels; protein and biological gels
(This special issue belongs to the Section Gel Applications)
Properties and Structure of Hydrogel-Related Materials (3rd Edition)
edited by
submission deadline 30 Jun 2026 | Viewed by 323 | Submission Open
Keywords: gels and networks; tough gel; gel rheology; gel adhesion; photonic crystal hydrogel sensor
Hydrogels, Oleogels and Bigels Used for Drug Delivery (2nd Edition) submission deadline 30 Jun 2026 | Viewed by 294 | Submission Open
Keywords: hydrogels; oleogels; and bigels; semisolid pharmaceuticals and semisolid dispersions; pharmaceutical technology; industrial pharmaceutical processes; semisolid formulations development; topical and in situ gelling systems; gelled system formers and gel-forming polymers; pharmacotechnical analysis; semi-solid control diagram (SSCD); texture and consistency analysis; rheology and mathematical modeling; in vitro penetration tests; membrane permeation; and mathematical modeling; Franz and diffusion cells; static permeation flux; and dynamic permeation flux; membranes; natural membranes; synthetic membranes; transdermal drug delivery; quality via the design of experiments
(This special issue belongs to the Section Gel Processing and Engineering)
Applications of Novel Cryogels and Food Gels in Food Quality and Safety
edited by and Liling Hao
submission deadline 30 Jun 2026 | Viewed by 224 | Submission Open
Keywords: cryogel; food gels; food quality; food safety; encapsulation
(This special issue belongs to the Section Gel Applications)
Hydrogels in Biomedicine
edited by and
submission deadline 10 Jul 2026 | 4 articles | Viewed by 5405 | Submission Open
Keywords: hydrogels; drug delivery; rheology; characterization; biomedical application; wound healing; nanotechnology; tissue engineering
(This special issue belongs to the Section Gel Analysis and Characterization)
Rheological and Gelling Properties of Gels for Food Applications
edited by Songsong Jiang and
submission deadline 10 Jul 2026 | 4 articles | Viewed by 1950 | Submission Open
Keywords: preparation methods; structure-property; structure– function relationships; functional applications; sustainable formulations
(This special issue belongs to the Section Gel Chemistry and Physics)
Towards Smart Gel Material for Flexible and Wearable Electronics
edited by Chuanqian Shi, Chengjun Wang and Ye Qiu
submission deadline 15 Jul 2026 | 1 articles | Viewed by 2021 | Submission Open
Keywords: smart hydrogel; flexible electronics; wearable electronics; gel-based devices; gel synthesis and application
(This special issue belongs to the Section Gel Analysis and Characterization)
Food Gel-Based Systems: Gel-Forming and Food Applications (2nd Edition)
edited by Buliyaminu Adegbemiro Alimi, and
submission deadline 15 Jul 2026 | 2 articles | Viewed by 1369 | Submission Open
Keywords: novel food-derived gels; encapsulation and delivery of bioactive compounds using gels; gel based packaging and edible coatings; structure; processing technologies
(This special issue belongs to the Section Gel Analysis and Characterization)
Cellulose Hydrogels and Their Applications submission deadline 15 Jul 2026 | Viewed by 211 | Submission Open
Keywords: cellulose hydrogel; nanocellulose; biomaterial; energy storage; supercapacitor; drug delivery; tissue engineering; wastewater treatment; absorbent; smart material
(This special issue belongs to the Section Gel Applications)
Hydrogels: Properties and Application in Biomedicine submission deadline 20 Jul 2026 | 6 articles | Viewed by 4262 | Submission Open
Keywords: hydrogels; biomedical applications; stimuli-responsive materials; tissue engineering; computational modelling
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Gel Films (2nd Edition) submission deadline 20 Jul 2026 | 4 articles | Viewed by 3972 | Submission Open
Keywords: gel films; sol-gel synthesis; film deposition; film characterization; film applications; biomaterials
(This special issue belongs to the Section Gel Processing and Engineering)
Shaping the Future with Thermoresponsive Gels: Smart Materials for Emerging Technologies
edited by , Cornelia Bejenaru and Maria Viorica Ciocîlteu
submission deadline 20 Jul 2026 | 3 articles | Viewed by 3306 | Submission Open
Keywords: thermoresponsive gels; smart materials; temperature-sensitive polymers; hydrogels; phase transition; adaptive materials; drug delivery systems
(This special issue belongs to the Section Gel Applications)
Customizing Hydrogels: A Journey from Concept to End-Use Properties (2nd Edition) submission deadline 25 Jul 2026 | Viewed by 185 | Submission Open
Keywords: natural/synthetic/hybrid hydrogels; chemical/physical hydrogels; “ smart” hydrogels; (nano)composite hydrogels; gelation mechanism; end-use properties
(This special issue belongs to the Section Gel Chemistry and Physics)
Gelatin-Based Materials for Tissue Engineering submission deadline 30 Jul 2026 | 4 articles | Viewed by 16657 | Submission Open
Keywords: gelatin; tissue engineering; biomaterials; hydrogels; bioprinting; wound healing; scaffolds; regenerative medicine and dentistry
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Synthetic and Bio-Based Aerogels: Mechanical Properties, Thermal Insulation, and Environmental Remediation (2nd Edition) submission deadline 30 Jul 2026 | 3 articles | Viewed by 10502 | Submission Open
Keywords: aerogels; thermal insulation; mechanical properties; porous structure; environmental remediation
(This special issue belongs to the Section Gel Processing and Engineering)
Biopolymer Gel-Assisted Synthesis of Particles for Biomedical Applications (3rd Edition) submission deadline 30 Jul 2026 | 2 articles | Viewed by 7179 | Submission Open
Keywords: biopolymer gels in synthesis of hierarchical and self-assembled structures; biopolymer hybrid particles for cell encapsulation and biofabrication; biopolymer hybrid particles for micropatterning and bio sensing in microfluidic devices; injectable biopolymer hybrid particles in biomedical applications; biopolymer hybrid particles for drug delivery; biopolymer hybrid particles in cosmetic; hygiene; and personal care products
(This special issue belongs to the Section Gel Applications)
Gel-Based Materials for Cartilage Regeneration submission deadline 30 Jul 2026 | 1 articles | Viewed by 1900 | Submission Open
Keywords: cartilage regeneration; hydrogels; injectable gels; biomaterials; tissue engineering; bioactive molecules; 3D bioprinting; anti-inflammatory agents
(This special issue belongs to the Section Gel Processing and Engineering)
Gel Film and Its Wide Range of Applications
edited by , María G. Carneiro-Da-Cunha and Paulo Antônio Galindo Soares
submission deadline 31 Jul 2026 | 3 articles | Viewed by 15338 | Submission Open
Keywords: biotechnology; polymeric matrices; three-dimensional network; swelling; water content
(This special issue belongs to the Section Gel Applications)
Application of Composite Gels in Food Processing and Engineering
edited by and
submission deadline 31 Jul 2026 | 7 articles | Viewed by 11035 | Submission Open
Keywords: gel network formation and interactions; texture and sensory enhancement; stability and release properties; plant-based and alternative food products; environmental sustainability and biocompatibility; engineering strategies for the formulation and stabilization; temperature; shear; pH; enhancing scalability and process efficiency; computational modeling and simulation approaches
(This special issue belongs to the Section Gel Applications)
Polymer Hydrogels and Networks
edited by
submission deadline 31 Jul 2026 | 5 articles | Viewed by 9772 | Submission Open
Keywords: polymer hydrogels; network design; crosslinking strategies; tough hydrogels; self-recovery; stimuli-responsive; human– machine interface; electronic skin; tissue regeneration
(This special issue belongs to the Section Gel Analysis and Characterization)
Smart Gels for Sensing Devices and Flexible Electronics
edited by Junjie Qin, and
submission deadline 31 Jul 2026 | 4 articles | Viewed by 9495 | Submission Open
Keywords: hydrogels; organogels; responsive polymers; smart materials; intelligent materials; nanomaterials; biomaterials; actuators; chemical sensors; biosensors; wearable devices; soft robotics
(This special issue belongs to the Section Gel Applications)
Gels for Anti-Infective Treatment and Drug-Delivery
edited by Fawzia Sha’at, Ramona Daniela Păvăloiu and
submission deadline 31 Jul 2026 | 6 articles | Viewed by 7301 | Submission Open
Keywords: gel-based drug delivery; hydrogels and nanogels; anti-infective therapy; hybrid nanosystems; stimuli-responsive gels; controlled drug release; nanoformulations; biocompatible gels; polymeric drug delivery systems; AI-driven formulation design
(This special issue belongs to the Section Gel Applications)
Synthesis and Application of Aerogel (2nd Edition)
edited by
submission deadline 31 Jul 2026 | 5 articles | Viewed by 6365 | Submission Open
Keywords: aerogel; synthesis; property; application
(This special issue belongs to the Section Gel Analysis and Characterization)
Polymer Gels for Oil Recovery and Industry Applications
edited by Yinbo He, , and Jingyang Pu
submission deadline 31 Jul 2026 | 6 articles | Viewed by 5993 | 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)
Innovative Soft Materials with a Focus on Gels
edited by
submission deadline 31 Jul 2026 | 2 articles | Viewed by 5658 | Submission Open
Keywords: gel materials; synthesis; characterization; and properties; biomedical applications; electronics; intelligent materials
(This special issue belongs to the Section Gel Processing and Engineering)
Advanced Functional Gels: Design, Properties, and Applications
edited by Lorena García-Uriostegiui and
submission deadline 31 Jul 2026 | 7 articles | Viewed by 4080 | Submission Open
Keywords: functional gels; responsive gels; hybrid gels; composite gels; self-healing gels; biomimetic gels; energy storage; biomedicine; soft electronics; environmental remediation
(This special issue belongs to the Section Gel Applications)
Aerogels: Promising Materials for Environmental Applications submission deadline 31 Jul 2026 | 2 articles | Viewed by 3833 | Submission Open
Keywords: aerogels; bio-based aerogels; environmental applications; adsorption; wastewater; decontamination; heavy metals; rare and precious metals; pharmaceuticals; personal care products; persistent organic pollutants; CO2 sequestration; photocatalysis
(This special issue belongs to the Section Gel Processing and Engineering)
Advanced Soft Gels with Enhanced Functionality for Biomedical and Additive Manufacturing Applications (2nd Edition) submission deadline 31 Jul 2026 | 3 articles | Viewed by 3169 | Submission Open
Keywords: synthesis; characterisation; physiochemical properties; biodegradation; synthetic and natural polymers; biopolymers; physical and chemical crosslinking; composite gels; self-healing gels; cell culture; drug delivery; 3D printing and bioprinting; tissue engineering; hydrogels; microgels; nanogels
(This special issue belongs to the Section Gel Processing and Engineering)
Recent Advances in Functionalized Aerogels: Preparation, Modification and Applications
edited by
submission deadline 31 Jul 2026 | 5 articles | Viewed by 3073 | Submission Open
Keywords: aerogels; environment; energy storage; smart catalysts; drug delivery; tissue engineering; biosensors
(This special issue belongs to the Section Gel Applications)
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