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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Functional Gels Loaded with Natural Products
edited by Kristina Ramanauskienė
submission deadline 30 Sep 2025 | 4 articles | Viewed by 5324 | Submission Open
Keywords: natural compounds; antioxidant activity; biological activity; gelling agents; in vitro; rheology
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Polymeric Gels and Applications for Hydrocarbon Development and Geologic Carbon Storage
edited by and Jingyang Pu
submission deadline 30 Sep 2025 | 4 articles | Viewed by 4780 | Submission Open
Keywords: Novel polymer gel materials (e.g.; phase-change polymer gels; self-healing hydrogels; thermal-responsive polymer gels; salt-resistant polymer gels; sustainable and renewable polymer gels; etc.); ; Polymer gel applications in carbon capture; utilization; and storage; ; Factors impacting the effectiveness of polymer gel treatment; ; Characterization of polymer gel transport and plugging performance in porous media; ; Reservoir numerical/physical simulation of CO2 flooding; ; Machine learning applications in polymer gels projects.
(This special issue belongs to the Section Gel Applications)
Wound Healing and Other Biomedical Applications of Novel Gel Formulations submission deadline 30 Sep 2025 | 4 articles | Viewed by 4780 | Submission Open
Keywords: gels; hydrogels; cryogels; topical gels; wound dressing; chronic wounds; tissue engineering; regenerative medicine; antimicrobial activity; anti-inflammatory; antiparasitic efficacy; cancer therapy; drug resistance; drug delivery
(This special issue belongs to the Section Gel Applications)
Food Hydrogels: Synthesis, Characterization and Applications
edited by Esther Santamaría and González Azón Carme
submission deadline 30 Sep 2025 | 2 articles | Viewed by 4691 | Submission Open
Keywords: food hydrogels; natural biopolymers; controlled release nutrients; rheological characterization; texture modification; shelf life extension; functional food
(This special issue belongs to the Section Gel Chemistry and Physics)
Rheological Properties and Applications of Gel-Based Materials
edited by Jungbin Ahn and
submission deadline 30 Sep 2025 | 4 articles | Viewed by 3830 | Submission Open
Keywords: gel-based materials; rheological analysis; nanocomposite
(This special issue belongs to the Section Gel Processing and Engineering)
Gels for Flexible Electronics and Energy Devices (2nd Edition)
edited by and
submission deadline 30 Sep 2025 | 3 articles | Viewed by 3469 | Submission Open
Keywords: hydrogels; flexible sensors; strain/pressure sensors; gel electrolytes; flexible batteries; flexible supercapacitors; energy harvesting
(This special issue belongs to the Section Gel Applications)
Advances in Synthetic and Bio-Based Aerogels: Mechanical Properties, Thermal Insulation, and Environmental Remediation (2nd Edition) submission deadline 30 Sep 2025 | 3 articles | Viewed by 2214 | Submission Open
Keywords: aerogels; thermal insulation; mechanical properties; porous structure; environmental remediation
(This special issue belongs to the Section Gel Processing and Engineering)
Advancing Green Chemistry in Hydrogel Development: Design, Synthesis, and Characterization submission deadline 30 Sep 2025 | 2 articles | Viewed by 1918 | Submission Open
Keywords: hydrogels; biomolecules; natural polymers; biocompatibility; biodegradability; green chemistry
(This special issue belongs to the Section Gel Chemistry and Physics)
Food Gels: Structure and Properties (2nd Edition)
edited by
submission deadline 30 Sep 2025 | 1 articles | Viewed by 1641 | Submission Open
Keywords: biopolymer; gel; hydrogel; structure; emulsion; food application; 3D printing; interaction
(This special issue belongs to the Section Gel Applications)
Synthesis, Characterization and Applications of Collagen-Based Gels submission deadline 30 Sep 2025 | 2 articles | Viewed by 1331 | Submission Open
Keywords: collagen-based gels; soft materials; mechanical properties; functional applications; tissue engineering; regenerative medicine; drug delivery
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Organogelators: Preparation, Properties, and Applications
edited by
submission deadline 30 Sep 2025 | 1 articles | Viewed by 978 | Submission Open
Keywords: organogels; drug delivery; biomaterials; device development; pharmaceutics; drug reservoirs; smart delivery systems; smart formulations
(This special issue belongs to the Section Gel Analysis and Characterization)
Advances in Composite Gels (3rd Edition)
edited by
submission deadline 30 Sep 2025 | 1 articles | Viewed by 951 | 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 Hydrogel Materials submission deadline 30 Sep 2025 | 1 articles | Viewed by 880 | Submission Open
Keywords: hydrogels; polymers; gel synthesis; characterization; interdisciplinary applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Biobased Gels for Drugs and Cells
edited by Resmi Anand and
submission deadline 30 Sep 2025 | 1 articles | Viewed by 622 | Submission Open
Keywords: biobased gel; drug delivery; cell encapsulation; biomaterials; cell– biomaterial interactions; chitosan; gelatin; alginate; lignin; cellulose
(This special issue belongs to the Section Gel Applications)
Polymer Gels for Sensor Applications
edited by , and Francis Vocanson
submission deadline 30 Sep 2025 | 1 articles | Viewed by 545 | 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)
Multifunctional Microgels: Synthesis, Properties, and Applications
edited by , Se-Hyeong Jung and
submission deadline 30 Sep 2025 | Viewed by 415 | Submission Open
Keywords: microgel synthesis; microgel characterization; network dynamics; multifunctional microgels; microgel application
(This special issue belongs to the Section Gel Chemistry and Physics)
Smart Gels for Sensing Devices and Flexible Electronics
edited by Junjie Qin, and
submission deadline 30 Sep 2025 | Viewed by 279 | 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)
Application of Soft Gels in High-Performance Supercapacitors
edited by Shuaikai Xu
submission deadline 30 Sep 2025 | Viewed by 255 | Submission Open
Keywords: soft gels; supercapacitors; energy storage; material synthesis; charge-transfer mechanisms; electrical conductivity
(This special issue belongs to the Section Gel Applications)
Electroactive Hydrogels: Application in Soft Actuators and Flexible Devices
edited by , and Russell Varley
submission deadline 30 Sep 2025 | Viewed by 165 | Submission Open
Keywords: dynamic hydrogel; electro-responsive hydrogel; injectable hydrogel electrode; conductive nanomicelle hydrogel; electroconductive hydrogel; wearable bioelectronic devices
(This special issue belongs to the Section Gel Analysis and Characterization)
Application of Composite Gel in Food Processing and Engineering
edited by and
submission deadline 30 Sep 2025 | Viewed by 142 | 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)
Multifunctional Polymer Nano-, Micro- and Hydro- Gels: Synthesis, Properties and Applications (2nd Edition)
edited by Mingning Zhu, Wenkai Wang, Ruixue Liu and
submission deadline 30 Sep 2025 | Viewed by 127 | Submission Open
Keywords: multifunctional gels; multiscale structure; stimuli responses; multiple sensing; colloids and interfaces; mechanical character; biomaterials; flexible electronics; controlled release; photoluminescence probe; adhesives and dressings
(This special issue belongs to the Section Gel Applications)
Preparation and Application of New Gel Adsorption Materials
edited by Yun Deng and
submission deadline 30 Sep 2025 | Viewed by 84 | 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)
Recent Advances on the Use of Different Gels Type in the Food Industry submission deadline 1 Oct 2025 | 6 articles | Viewed by 10382 | Submission Open
Keywords: gel formation; oleogels; gelling process; gelation; gels characteristics; food products; microstructure analysis; textural properties; rheological properties; nutritional value; new products development-derived products; health benefits; processing; consumer acceptance
(This special issue belongs to the Section Gel Applications)
Advanced Hydrogel for Water Treatment (2nd Edition)
edited by
submission deadline 20 Oct 2025 | 2 articles | Viewed by 1902 | Submission Open
Keywords: hydrogel; desalination; atmospheric condensation; heavy metal ions; organics removal; water treatment
(This special issue belongs to the Section Gel Analysis and Characterization)
Advanced Functional Hydrogels for Wearable Medical Devices
edited by Xuefeng Hu and
submission deadline 20 Oct 2025 | 1 articles | Viewed by 1051 | Submission Open
Keywords: wearable medical devices; functional hydrogel; conductive hydrogel; biosensors; bio-adhesives; drug delivery
(This special issue belongs to the Section Gel Processing and Engineering)
Gelatin-Based Materials for Tissue Engineering submission deadline 20 Oct 2025 | 1 articles | Viewed by 212 | 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)
Gel-Based Materials for Cartilage Regeneration submission deadline 20 Oct 2025 | Viewed by 105 | 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)
Functional Hydrogels for Soft Electronics and Robotic Applications
edited by
submission deadline 20 Oct 2025 | Viewed by 60 | 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)
Physicochemical Properties and Applications of Gel Materials submission deadline 30 Oct 2025 | 4 articles | Viewed by 9291 | Submission Open
Keywords: hydrogels; aerogels; smart gels; nanocomposite gels; gels properties; bioinks; drug delivery; tissue engineering
(This special issue belongs to the Section Gel Chemistry and Physics)
Advanced Aerogels: From Design to Application submission deadline 30 Oct 2025 | 4 articles | Viewed by 5137 | Submission Open
Keywords: aerogels; aerogel composites; synthesis and characterization; physicochemical properties; application
(This special issue belongs to the Section Gel Processing and Engineering)
Innovative Soft Materials with a Focus on Gels
edited by
submission deadline 30 Oct 2025 | 1 articles | Viewed by 2099 | 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)
Hydrogels for the Regeneration of Joints of the Musculoskeletal System in Orthopedics (2nd Edition)
edited by and Mohammad Jafar Abdekhodaie
submission deadline 30 Oct 2025 | Viewed by 278 | Submission Open
Keywords: biomaterials; 3D cell culture; alginate; micro-bead; cell viability; orthopedics; stem cells; regeneration; hyaluronic acid; collagen
(This special issue belongs to the Section Gel Applications)
Hydrogel for Tissue Regeneration (2nd Edition)
edited by Dongrim Seol
submission deadline 31 Oct 2025 | 5 articles | Viewed by 9296 | Submission Open
Keywords: hydrogel; tissue regeneration/engineering; stem/progenitor cells; drugs; RNA; DNA; gene; extracellular vesicles/exosomes; 3D printing; electrospinning; molding-based injectable gels
(This special issue belongs to the Section Gel Applications)
Synthesis, Characterization and Pharmaceutical Applications of Gels
edited by
submission deadline 31 Oct 2025 | 5 articles | Viewed by 7276 | Submission Open
Keywords: gel; hydrogel; nanogel; microgel; pharmaceutical; drug delivery; drug targeting
(This special issue belongs to the Section Gel Applications)
Gel Film and Its Wide Range of Applications
edited by , María G. Carneiro-Da-Cunha and Paulo Antônio Galindo Soares
submission deadline 31 Oct 2025 | 1 articles | Viewed by 4384 | Submission Open
Keywords: biotechnology; polymeric matrices; three-dimensional network; swelling; water content
(This special issue belongs to the Section Gel Applications)
Edible Gel Coatings and Membranes submission deadline 31 Oct 2025 | 1 articles | Viewed by 2460 | 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)
Advances in Functional and Intelligent Hydrogels
edited by and
submission deadline 31 Oct 2025 | 1 articles | Viewed by 1749 | 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)
Protein-Based Gels: Synthesis, Properties, and Applications
edited by Jiangtao Zhou
submission deadline 31 Oct 2025 | 1 articles | Viewed by 1742 | Submission Open
Keywords: protein-based gels; biocompatibility; drug delivery; tissue engineering; food structure and stabilization; environmental sustainability; multifunctional biomaterials
(This special issue belongs to the Section Gel Applications)
Gel-Based Drug Delivery Systems for Cancer Treatment (2nd Edition)
edited by and
submission deadline 31 Oct 2025 | 1 articles | Viewed by 1283 | 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)
Food Hydrocolloids and Hydrogels: Rheology and Texture Analysis
edited by and
submission deadline 31 Oct 2025 | 1 articles | Viewed by 802 | Submission Open
Keywords: food hydrocolloids; hydrogels; rheology; texture analysis; viscoelasticity; gelation; gelling agents; emulsifiers; protein– polysaccharide interactions; biopolymer networks
(This special issue belongs to the Section Gel Analysis and Characterization)
Innovative Approaches of Biopolymer-Based Hydrogels: Development, Characterization, and Biomedical Applications submission deadline 31 Oct 2025 | 1 articles | Viewed by 623 | 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)
Multifunctional Conductive Polymer Gels: Synthesis, Properties, and Applications
edited by and Yi Zhou
submission deadline 31 Oct 2025 | Viewed by 387 | Submission Open
Keywords: conductive hydrogel; soft materials; electronics human-machine interaction; tissue regeneration; wound healing; energy harvesting
(This special issue belongs to the Section Gel Applications)
Silica Aerogel: Synthesis, Properties and Characterization
edited by Dongmei Huang
submission deadline 31 Oct 2025 | 2 articles | Viewed by 186 | Submission Open
Keywords: silica aerogel; highly porous and lightweight material; sol-gel techniques; buildings and aerospace; drug delivery systems; environmental remediation
(This special issue belongs to the Section Gel Analysis and Characterization)
Application of Hydrogels in Medicine
edited by and Zbigniew Pasieka
submission deadline 31 Oct 2025 | Viewed by 177 | 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)
Shaping the Future with Thermoresponsive Gels: Smart Materials for Emerging Technologies
edited by , Cornelia Bejenaru and Maria Viorica Ciocîlteu
submission deadline 31 Oct 2025 | Viewed by 109 | 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)
Recent Advances in Gel Polymer Electrolytes submission deadline 31 Oct 2025 | Viewed by 84 | Submission Open
Keywords: gel polymer electrolytes; energy storage; lithium-ion batteries; ionic conductivity; polymer materials; sustainable energy systems
(This special issue belongs to the Section Gel Processing and Engineering)
Design, Characterization and Application of Supramolecular Gels
edited by
submission deadline 31 Oct 2025 | Viewed by 47 | Submission Open
Keywords: supramolecular gels; structure; catalysis; sorbent materials; luminescent materials
(This special issue belongs to the Section Gel Analysis and Characterization)
Application of Smart Gel Material in Flexible and Wearable Electronic (2nd Edition) submission deadline 5 Nov 2025 | 2 articles | Viewed by 2375 | 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)
Gel Materials in Advanced Energy Systems
edited by
submission deadline 10 Nov 2025 | 4 articles | Viewed by 11059 | Submission Open
Keywords: energy storage; energy conversion; gel-based materials; gel-based electrolytes; conductive polymer gel
(This special issue belongs to the Section Gel Applications)
Gel-Based Materials for Intelligent Sensors and Self-Powered Nanogenerators submission deadline 20 Nov 2025 | 4 articles | Viewed by 1409 | Submission Open
Keywords: ionogels; organogels; and soft elastomers; carbon nanomaterials; smart sensing; self-powered nanogenerators; Internet of Things; real-time monitoring
(This special issue belongs to the Section Gel Applications)
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