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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Novel Functional Gels for Biomedical Applications
edited by Jilong Wang
submission deadline 30 Apr 2025 | 9 articles | Viewed by 18288 | Submission Open
Keywords: gels; biomimetic gels; drug delivery; inflammatory microenvironment regulation; cancer therapy
(This special issue belongs to the Section Gel Applications)
Latest Advances and Prospects of Hydrogels for Biomedical Applications submission deadline 30 Apr 2025 | 7 articles | Viewed by 17382 | Submission Open
Keywords: hydrogels; biomedical application; drug delivery; scaffold; tissue engineering; biosensor; wound healing; stimuli responsive; method realization
(This special issue belongs to the Section Gel Applications)
Design and Development of Gelatin-Based Materials
edited by Bing Zhang
submission deadline 30 Apr 2025 | 9 articles | Viewed by 15940 | Submission Open
Keywords: gelatin based material; hemostatic materials; tissue adhesives; regeneration medicine; GelMA hydrogel; plasma substitutes; tissue engineering scaffolds
(This special issue belongs to the Section Gel Processing and Engineering)
Advances in Cellulose-Based Hydrogels (3rd Edition) submission deadline 30 Apr 2025 | 9 articles | Viewed by 15370 | Submission Open
Keywords: cellulose; nanocellulose; cellulose derivatives; cellulose-based composites; hydrogels; design; characterization; applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Progress of Hydrogel Sensors and Biosensors submission deadline 30 Apr 2025 | 7 articles | Viewed by 14659 | Submission Open
Keywords: hydrogel; sensors; biosensors; stimuli-responsive; wearable; point of care
(This special issue belongs to the Section Gel Applications)
Gel-Related Papers from the 9th Asian Conference on Colloid and Interface Science 2023 (ACCIS 2023)
edited by Guanqing Sun, Huan Tan and
submission deadline 30 Apr 2025 | 8 articles | Viewed by 12873 | Submission Open
Keywords: basic theories of microgel and macrogel formation; amphiphilic and supramolecular assemblies; emulsion; microemulsion; foam; wetting and lubrication; gels for biomedical application; drug delivery; nanomedicine and pharmacy; polymer; polymer colloids; surfactant and gels; gels for energy materials and other technological applications
(This special issue belongs to the Section Gel Analysis and Characterization)
Chemical and Gels for Oil Drilling and Enhanced Recovery
edited by
submission deadline 30 Apr 2025 | 7 articles | Viewed by 10012 | Submission Open
Keywords: gel synthesis; gel evaluation; gel drilling fluids; gel plugging; gel fracturing fluid; gel acid; gel conformance control; gel displacement; gel application
(This special issue belongs to the Section Gel Applications)
Functional Gels Applied in Drug Delivery submission deadline 30 Apr 2025 | 6 articles | Viewed by 8679 | Submission Open
Keywords: gels; drug delivery; biopolymers; nanoparticles
(This special issue belongs to the Section Gel Applications)
Cellulose-Based Gels: Synthesis, Properties, and Applications
edited by Alessandro Torchio and
submission deadline 30 Apr 2025 | 6 articles | Viewed by 7564 | 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)
Hydrogel for Tissue Regeneration (2nd Edition)
edited by Dongrim Seol
submission deadline 30 Apr 2025 | 5 articles | Viewed by 7345 | 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)
Alginate-Based Gels: Preparation, Characterization and Application (2nd Edition)
edited by and
submission deadline 30 Apr 2025 | 4 articles | Viewed by 4344 | Submission Open
Keywords: alginate hydrogel  ; alginate gel  ; alginate composite material; synthesis and characterization of alginate; applications of alginate; theory and simulation of alginate
(This special issue belongs to the Section Gel Applications)
Outcomes and Trends in Polymer Gels: Designing, Properties and Applications
edited by Noelia Maldonado Gavilán and
submission deadline 30 Apr 2025 | 2 articles | Viewed by 3465 | Submission Open
Keywords: polymeric networks; strengthened supramolecular interactions; novel crosslinkers; smart behavior; advanced manufacturing and characterization
(This special issue belongs to the Section Gel Processing and Engineering)
Advanced Gels in the Food System
edited by Xiaokang Na, Wuchao Ma and
submission deadline 30 Apr 2025 | 2 articles | Viewed by 2750 | 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)
Advances in Silica Xero- and Aerogels: From Synthesis to a Structure–Activity Relationship (2nd Edition)
edited by and
submission deadline 30 Apr 2025 | 3 articles | Viewed by 1923 | Submission Open
Keywords: synthesis of xero- and aerogels; sol– gel techniques; physicochemical characterizations; structure– activity relationship; porous structures; small-angle scattering; electron microscopy; applications of silica xerogels and aerogels; biological activity; catalytic activity; magnetic properties; optical properties
(This special issue belongs to the Section Gel Applications)
Gels for Removal and Adsorption (3rd Edition)
edited by Shiyang Li, and
submission deadline 30 Apr 2025 | 3 articles | Viewed by 1575 | 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)
Hydrogels in Action: Self-Assembly, Responsivity and Sensing (2nd Edition)
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 1307 | Submission Open
Keywords: responsive hydrogels; swelling dynamics of hydrogels; drop-based microfluidics; hydrogels from aqueous two-phase systems; solvent-induced phase separation (SIPS); molecular self-assembly of hydrogels; hydrogel particles for sensing applications; hydrogels with hierarchical pore structures
(This special issue belongs to the Section Gel Analysis and Characterization)
Synthesis and Application of Polymer Hydrogels
edited by and Teng Yang
submission deadline 30 Apr 2025 | 1 articles | Viewed by 1029 | Submission Open
Keywords: 3D and 4D printings; tunable hydrogels; curing and degradation; physical properties characterization; soft robotics; shape memory hydrogels; sensing; micro-; nano-composite hydrogels; antifouling; biomedicines; static and dynamic responses; viscoelasticity and viscoplasticity; scratching and wearing
(This special issue belongs to the Section Gel Applications)
Sustainable Functional Hydrogels in Flexible Electronics, Energy and Thermoelectrics submission deadline 30 Apr 2025 | Viewed by 369 | Submission Open
Keywords: functional hydrogels; flexible electronic; sensor and actuators; thermoelectric; energy; batteries
(This special issue belongs to the Section Gel Analysis and Characterization)
Applications of Stretchable and Tough Hydrogel Composites
edited by Liang Chen
submission deadline 30 Apr 2025 | Viewed by 176 | Submission Open
Keywords: stretchable and tough hydrogel; biomedical; soft robotics; wearable devices and flexible sensors; smart materials; renewable resources
(This special issue belongs to the Section Gel Applications)
Advanced Responsive Hydrogels and Their Applications in Biomedicine and Energy Science
edited by
submission deadline 30 Apr 2025 | Viewed by 151 | Submission Open
Keywords: stimuli-responsive; hybrid hydrogels; smart gel materials; biocompatible; biomaterials; energy science
(This special issue belongs to the Section Gel Processing and Engineering)
Functional Gels Applied in Tissue Engineering
edited by , and Alexey Vertegel
submission deadline 10 May 2025 | 3 articles | Viewed by 6862 | Submission Open
Keywords: functional gel; hydrogels; responsive hydrogels; injectable hydrogels; tissue engineering; regenerative medicine; scaffold; delivery; extracellular matrix; 3D Printing; actuators and sensors; etc
(This special issue belongs to the Section Gel Applications)
Modification of Gels in Creating New Food Products submission deadline 20 May 2025 | 11 articles | Viewed by 23394 | Submission Open
Keywords: food gels; hydrogels; emulgels; oleogels; aerogels; natural biopolymers; food gel product design; functional food; control digestive or retention; gel property analysis; textural stability and sensory properties; smart packaging
(This special issue belongs to the Section Gel Applications)
Food Gels: Gelling Process and Innovative Applications
edited by
submission deadline 20 May 2025 | 3 articles | Viewed by 5639 | 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)
Recent Advances in Hydrogels for Biomedical Application (2nd Edition)
edited by Kai Liu
submission deadline 20 May 2025 | 3 articles | Viewed by 3633 | 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)
Novel Gels for Topical Applications
edited by Mohamadmahdi Samandari, and Adnan Memic
submission deadline 20 May 2025 | 2 articles | Viewed by 3298 | Submission Open
Keywords: topically administrated gels; in situ formed gel dressings; smart gel dressings; gel-based microneedle arrays; topical gels for wound healing
(This special issue belongs to the Section Gel Applications)
Physical and Mechanical Properties of Polymer Gels (2nd Edition)
edited by and
submission deadline 25 May 2025 | 8 articles | Viewed by 16289 | Submission Open
Keywords: soft matter; rheology; gels; bijels
(This special issue belongs to the Section Gel Analysis and Characterization)
Advances in Functional and Intelligent Hydrogels
edited by and
submission deadline 25 May 2025 | 1 articles | Viewed by 1523 | 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)
Polymer Gels for the Oil and Gas Industry
edited by Lin Li, Yining Wu and
submission deadline 30 May 2025 | 11 articles | Viewed by 18668 | Submission Open
Keywords: polymer gels; oil and gas production; oil reservoirs; gel fracturing fluid
(This special issue belongs to the Section Gel Applications)
Properties of Hydrogels, Aerogels, and Cryogels Composites (2nd Edition) submission deadline 30 May 2025 | 7 articles | Viewed by 12961 | 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)
Oleogels, Bigels, and Emulgels: Fabrication, Application and Research Trends
edited by and
submission deadline 30 May 2025 | 5 articles | Viewed by 8886 | Submission Open
Keywords: oleogels; bigels; emulgels; food; oleogelators; textural properties; rheological attributes; sensory evaluation
(This special issue belongs to the Section Gel Applications)
Nature Polymer Gels for Food Packaging
edited by Josefa Martucci and David A. D'Amico
submission deadline 30 May 2025 | Viewed by 202 | Submission Open
Keywords: biopolymer; gels; edible films; encapsulation; food packaging; active packaging; smart packaging; food preservation
(This special issue belongs to the Section Gel Applications)
Recent Advance in Food Gels (2nd Edition)
edited by and
submission deadline 31 May 2025 | 10 articles | Viewed by 17229 | Submission Open
Keywords: emerging protein resources; polysaccharides; self-assembly; microstructure
(This special issue belongs to the Section Gel Applications)
Recent Advances in Protein Gels submission deadline 31 May 2025 | 7 articles | Viewed by 16661 | Submission Open
Keywords: protein gels; hydrogels; biopolymers; synthesis and characterization; functional applications; waste management; circular economy
(This special issue belongs to the Section Gel Analysis and Characterization)
Global Excellence in Bioactive Gels
edited by
submission deadline 31 May 2025 | 7 articles | Viewed by 13107 | Submission Open
Keywords: bioactive gels; natural polymers; synthetic polymers; gel properties; sol– gel method; gel membrane; tissue engineering; drug delivery system (DDS); biosensor; regenerative therapy
(This special issue belongs to the Section Gel Analysis and Characterization)
Biosoursed and Bioinspired Gels for Biomedical Applications (2nd Edition)
edited by
submission deadline 31 May 2025 | 5 articles | Viewed by 7399 | 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 31 May 2025 | 4 articles | Viewed by 5051 | 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)
Mathematical Modeling in Gel Design and Applications
edited by Tilen Kopač, Rok Ambrožič and
submission deadline 31 May 2025 | 2 articles | Viewed by 3147 | Submission Open
Keywords: polymers; gels; mathematical modeling; gelation; cross-link density; shear modulus; mesh size; diffusion coefficient; gel network interactions; mechanical properties; flow behavior; controlled release
(This special issue belongs to the Section Gel Processing and Engineering)
Recent Advances in Aerogels (2nd Edition) submission deadline 31 May 2025 | 2 articles | Viewed by 2284 | Submission Open
Keywords: aerogels; characterization methods; aerogel application; nanomaterials; porosity
(This special issue belongs to the Section Gel Chemistry and Physics)
Recent Advances in Multi-Functional Hydrogels
edited by Wenshan Ren, Liang Chen and
submission deadline 31 May 2025 | 2 articles | Viewed by 2241 | Submission Open
Keywords: thermo-sensitive hydrogels; photo-sensitive hydrogels; self-healing hydrogels; anti-fouling hydrogels; tough and strong hydrogels; biomedical hydrogels; luminescent hydrogels; hydrogel adhesives; hydrogel sensors; 3D-printed hydrogels; hydrogel-based soft actuators; hydrogel-based electronics
(This special issue belongs to the Section Gel Applications)
Conductive Gels: Preparation, Properties and Applications submission deadline 31 May 2025 | 1 articles | Viewed by 1888 | 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)
Polysaccharide Gels for Biomedical and Environmental Applications submission deadline 31 May 2025 | 1 articles | Viewed by 881 | Submission Open
Keywords: natural and modified polysaccharides; dynamic and photoreactive crosslinks; (nano)gels; gel composites and 3D-printed constructs; structure– property– application relationships; drug delivery and diagnosis in cancer and other diseases; wound dressing and tissue engineering; sensors; environmental applications
(This special issue belongs to the Section Gel Applications)
Recent Developments in Nanocomposite Hydrogels submission deadline 31 May 2025 | Viewed by 489 | 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)
Rheological Properties of Hydrogels from Biopolymers
edited by
submission deadline 31 May 2025 | Viewed by 366 | Submission Open
Keywords: rheology; hydrogels; processing; biopolymer
(This special issue belongs to the Section Gel Analysis and Characterization)
Recent Research on Gel Rheology, Flow, Atomization and Combustion
edited by Hui Zhao and Haifeng Liu
submission deadline 31 May 2025 | Viewed by 323 | Submission Open
Keywords: gels; semi solid; yield stress; viscoelasticity; atomization and sprays; ignition and combustion
(This special issue belongs to the Section Gel Chemistry and Physics)
Self-Healing Hydrogels in Cementitious Materials and Concrete: From Design to Application
edited by , Mahmoud Shakouri and
submission deadline 31 May 2025 | Viewed by 268 | Submission Open
Keywords: self-healing hydrogels; self-healing products; concrete; cementitious materials; supplementary cementitious materials; chemical interactions; self-healing efficiency; physical/chemical properties
(This special issue belongs to the Section Gel Applications)
Polymer Aerogels and Aerogel Composites submission deadline 31 May 2025 | Viewed by 165 | Submission Open
Keywords: aerogels; novel polymer aerogels; aerogel composites; structure-to-property relationship; characterization; applications
(This special issue belongs to the Section Gel Processing and Engineering)
Ground Engineering Applications of Colloidal Silica Gel
edited by Matteo Pedrotti, Arianna Gea Pagano and Xin Kang
submission deadline 31 May 2025 | Viewed by 148 | Submission Open
Keywords: colloidal silica  ; grout  ; stabilization  ; liquefaction  ; hydraulic barriers
(This special issue belongs to the Section Gel Applications)
Customizing Hydrogels: A Journey from Concept to End-Use Properties submission deadline 10 Jun 2025 | 6 articles | Viewed by 3715 | 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)
Innovative Applications of Gelated Matrices in Biomedical and Environmental Engineering submission deadline 15 Jun 2025 | 1 articles | Viewed by 1332 | 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)
Advanced Gel-Based Materials and Coatings with Enhanced Bioactivity submission deadline 20 Jun 2025 | 3 articles | Viewed by 7270 | Submission Open
Keywords: bioactive function; antimicrobial coatings; antimicrobial materials; bioactive gels; biofilms; bacteria resistance
(This special issue belongs to the Section Gel Applications)
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