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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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Advances in Implantable Gel-Based Materials for Cosmetic Applications

edited by Danny Soares,

Kausik Mukhopadhyay

and

Thomas Kean

submission deadline 31 Dec 2025 | Viewed by 106 | 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)

Application of Gel Dosimetry

edited by Gabriele Magugliani and Eros Mossini

submission deadline 31 Dec 2025 | Viewed by 94 | Submission Open

Keywords: radiotherapy; dosimetry; gel dosimetry; quality assurance; polymer gels; radiochromic gels; dosimetric phantom; radiation chemistry

(This special issue belongs to the Section Gel Chemistry and Physics)

Synthesis and Application of Aerogel (2nd Edition)

edited by Guanglei Zhang

submission deadline 31 Dec 2025 | Viewed by 76 | Submission Open

Keywords: aerogel; synthesis; property; application

(This special issue belongs to the Section Gel Analysis and Characterization)

Advances in Engineering Emulsion Gels for Food Application

edited by

Sorina Ropciuc

and

Cristina Damian

submission deadline 31 Dec 2025 | Viewed by 53 | Submission Open

Keywords: food gels; hydrogels; emulgels; oleogels; natural biopolymers; food gel product design; functional food

(This special issue belongs to the Section Gel Processing and Engineering)

Gels for Oral, Maxillofacial, Dental Medicine or Cosmetic Use

edited by

Codruţa Saroși

and

Alexandrina Muntean

submission deadline 31 Dec 2025 | Viewed by 51 | 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 | 8 articles | Viewed by 12947 | 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)

Advances in Multi-Material Hydrogel for 3D Bioprinting

edited by Hatai Jongprasitkul, David A. Fulton and

Vijay Singh Parihar

submission deadline 15 Jan 2026 | Viewed by 112 | 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)

Xerogels: Preparation, Properties and Applications

edited by

Guillermo Cruz-Quesada

and

Natalia Rey-Raap

submission deadline 15 Jan 2026 | Viewed by 88 | 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)

Design of Hydrogels and Hydrogel-Derived Materials for Controlled Molecule Release Applications

edited by

Florian E. Jurin

Cédric C. Buron

and

Arnaud Béduneau

submission deadline 15 Jan 2026 | Viewed by 20 | 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)

Application of Gel Technology in Food Industry and Environmental Engineering (2nd Edition)

edited by

Mihaela Ciopec

and

Cristina Paul

submission deadline 20 Jan 2026 | 4 articles | Viewed by 6893 | 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)

Hydrogel-Based Flexible Electronics and Devices

edited by

Paul Chesler

Mihai Anastasescu

and

Cristian Hornoiu

submission deadline 20 Jan 2026 | 1 articles | Viewed by 2604 | Submission Open

Keywords: hydrogel applications; flexible devices; flexible electronics; wearable electronics; flexible biosensors; soft robotics

(This special issue belongs to the Section Gel Applications)

Hydrogelated Matrices: Structural, Functional and Applicative Aspects (2nd Edition)

edited by

Carlo Diaferia

and

Enrico Gallo

submission deadline 20 Jan 2026 | Viewed by 156 | 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)

Designing Gels for Wound Dressing (2nd Edition)

edited by

Kannan Badri Narayanan

submission deadline 20 Jan 2026 | Viewed by 65 | Submission Open

Keywords: hydrogels; biopolymers; nanocomposite; antibacterial; wound healing; wound dressing; wound management

(This special issue belongs to the Section Gel Applications)

Food Gels: Gelling Process and Innovative Applications

edited by

Xinyu Sun

submission deadline 31 Jan 2026 | 4 articles | Viewed by 6736 | 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,

Zhenxing Fang

and

Daxin Liang

submission deadline 31 Jan 2026 | 5 articles | Viewed by 2916 | 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)

Women’s Special Issue Series: Gels (2nd Edition)

edited by

Ecaterina Stela Dragan

submission deadline 31 Jan 2026 | 1 articles | Viewed by 801 | 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)

Properties and Applications of Biomaterials Related to Gels (3rd Edition)

edited by

Shige Wang

submission deadline 31 Jan 2026 | 1 articles | Viewed by 589 | Submission Open

Keywords: hydrogel; hemostasis; cell cryopreservation; drug delivery; wound dressing

(This special issue belongs to the Section Gel Applications)

Hydrogels, Microgels, and Nanogels: From Fundamentals to Applications (3rd Edition)

edited by

Valentina Nigro

and

Francesca Limosani

submission deadline 31 Jan 2026 | Viewed by 99 | 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)

Environmentally Friendly Gels

edited by Hang Zhang,

Guiying Tian

and

Jinhui Wang

submission deadline 31 Jan 2026 | Viewed by 79 | 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)

Hydrogels for Tissue Repair: Innovations and Applications

edited by Qi Chen

submission deadline 31 Jan 2026 | Viewed by 60 | Submission Open

Keywords: hydrogels; tissue repair; natural cell microenvironment; bone repair; cartilage repair; myocardial repair

(This special issue belongs to the Section Gel Applications)

Gel-Based Novel Wound Dressing (2nd Edition)

edited by

Sonia Kudłacik-Kramarczyk

submission deadline 31 Jan 2026 | Viewed by 42 | 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

Hui Yang

submission deadline 31 Jan 2026 | Viewed by 40 | 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)

Gel Electrolytes and Supercapacitors

edited by Mobinul Islam and Andrey Dobrynin

submission deadline 31 Jan 2026 | Viewed by 37 | 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)

Hydrogels for Tissue Engineering

edited by

Dezhong Zhou

submission deadline 31 Jan 2026 | Viewed by 28 | Submission Open

Keywords: tissue engineering; hydrogel; tissue/organ restoration; biocompatibility; biomedicine

(This special issue belongs to the Section Gel Applications)

State-of-the-Art Food Gels

edited by

Ewa Jakubczyk

and Anna Kaminska-Dworznicka

submission deadline 31 Jan 2026 | Viewed by 26 | 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)

Structured Gels: Mechanics, Responsivity and Applications (2nd Edition)

edited by

Mutian Hua

and Shuwang Wu

submission deadline 20 Feb 2026 | 1 articles | Viewed by 1485 | 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

edited by

Cristina-Gabriela Grigoraș

submission deadline 20 Feb 2026 | 1 articles | Viewed by 1287 | 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

edited by

Masumi Kamiyama

and

Tetsuya Adachi

submission deadline 20 Feb 2026 | Viewed by 17 | 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

Yannan Liu

and

Yingchun Li

submission deadline 25 Feb 2026 | Viewed by 31 | Submission Open

Keywords: hydrogel; biofunctional; tissue engineering; biomedical applications; soft electronics; biomaterial

(This special issue belongs to the Section Gel Analysis and Characterization)

Innovative Applications of Gelated Matrices in Biomedical and Environmental Engineering

edited by

and

submission deadline 28 Feb 2026 | 2 articles | Viewed by 2228 | 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)

State-of-the-Art Gel Research in Italy (2nd Edition)

edited by

Alessandro Moretto

and

Miriam Mba Blázquez

submission deadline 28 Feb 2026 | 1 articles | Viewed by 1982 | 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)

Synthesis, Properties, and Applications of Novel Polymer-Based Gels

edited by

Peng Zhang

Yuanxun Zheng

and Zhen Gao

submission deadline 28 Feb 2026 | 2 articles | Viewed by 808 | 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)

Designing Gels as Adsorbents and Catalysts

edited by

Michael Arkas

Ioannis Pashalidis

Ioannis Anastopoulos

Dimitrios Giannakoudakis

and

Ioannis Ioannidis

submission deadline 28 Feb 2026 | Viewed by 669 | Submission Open

Keywords: water purification; catalysis ; catalytic decomposition ; air detoxification; recovery; adsorption ; composite gels

(This special issue belongs to the Section Gel Applications)

Stretchable Conductive Hydrogel Materials for Flexible Sensors and Bioelectronics

edited by

Yanchao Mao

submission deadline 28 Feb 2026 | 1 articles | Viewed by 397 | 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 Progress of Hydrogel Sensors and Biosensors (2nd Edition)

edited by

María-José Bañuls

María Isabel Lucío

and

Ángel Maquieira

submission deadline 28 Feb 2026 | 1 articles | Viewed by 352 | Submission Open

Keywords: hydrogel; sensors; biosensors; stimuli-responsive; wearable; point of care

(This special issue belongs to the Section Gel Applications)

Recent Research on Gel Rheology, Flow, Atomization and Combustion

edited by Hui Zhao and Haifeng Liu

submission deadline 28 Feb 2026 | Viewed by 351 | 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)

Gels for Efficient Energy Storage and Conversion

edited by

Kun Luo

submission deadline 28 Feb 2026 | 1 articles | Viewed by 268 | 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)

Recent Advances in Hydrogels for Tissue Engineering Applications

edited by

Olga Kammona

and

Evgenia Tsanaktsidou

submission deadline 28 Feb 2026 | Viewed by 101 | 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)

Energy Storage and Conductive Gel Polymers

edited by

Thirukumaran Periyasamy

and

Seong-Cheol Kim

submission deadline 28 Feb 2026 | Viewed by 73 | Submission Open

Keywords: development of gel polymers in energy storage systems; application of gel polymers in energy storage systems; stable gel electrolytes; stretchable; self-healing; and flexible conductive gels; biodegradable and non-toxic conductive gels; hybrid gel materials

(This special issue belongs to the Section Gel Applications)

Polymeric Hydrogels for Biomedical Application (2nd Edition)

edited by

Ion Cosmin Călina

and

Muhammad Asim Raza

submission deadline 28 Feb 2026 | Viewed by 72 | 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)

Novel Functional Gels for Biomedical Applications (2nd Edition)

edited by Jilong Wang

submission deadline 28 Feb 2026 | Viewed by 48 | Submission Open

Keywords: gels; biomimetic gels; drug delivery; inflammatory microenvironment regulation; cancer therapy

(This special issue belongs to the Section Gel Applications)

Recent Advances in Graphene-Based Aerogels

edited by Dianpeng Sui and

Duckjong Kim

submission deadline 28 Feb 2026 | Viewed by 37 | Submission Open

Keywords: graphene-based aerogels; synthesis methods; energy storage; environmental applications; biomedical applications

(This special issue belongs to the Section Gel Applications)

Global Excellence in Bioactive Gels (2nd Edition)

edited by

Yoshitaka Miyamoto

submission deadline 28 Feb 2026 | Viewed by 27 | Submission Open

Keywords: bioactive gels; natural polymers; synthetic polymers; gel properties; sol– gel method; gel membrane; drug delivery system (DDS); regenerative therapy; biosensor; application of gels

(This special issue belongs to the Section Gel Analysis and Characterization)

Hydrogels: Promising Biomaterials for Tissue Engineering

edited by

David Mills

and

Fabio Falleroni

submission deadline 28 Feb 2026 | Viewed by 23 | Submission Open

Keywords: hydrogels; tissue engineering; mechanotransduction; extracellular matrix; biomaterials; stem cell differentiation; mechnical cues

(This special issue belongs to the Section Gel Chemistry and Physics)

Properties and Applications of Cellulose-Based Gel

edited by

Jianguo Li

submission deadline 28 Feb 2026 | Viewed by 18 | Submission Open

Keywords: cellulose; cellulose-based gel; hydrogel; biopolymers; polysaccharides

(This special issue belongs to the Section Gel Analysis and Characterization)

Advanced Hydrogels for Controlled Drug Delivery (2nd Edition)

edited by

Akira Matsumoto

submission deadline 20 Mar 2026 | 3 articles | Viewed by 6629 | Submission Open

Keywords: smart gels; nanogels; drug delivery; cell and tissue engineering; injectable gels; 3D printing; microneedles

(This special issue belongs to the Section Gel Applications)

Moving Towards Food Sustainability: Advances in Novel Alternative and Hybrid Protein Gels

edited by Wenjie Xia,

Lilia Ahrné

, Deniz Z. Gunes and Leonard Sagis

submission deadline 20 Mar 2026 | 1 articles | Viewed by 1810 | Submission Open

Keywords: alternative protein gels; hybrid protein gels; protein interactions; rheology; structure; texture; microscopy

(This special issue belongs to the Section Gel Applications)

Properties of Hydrogels, Aerogels, and Cryogels Composites (3rd Edition)

edited by

Irina Elena Raschip

and

Raluca Nicoleta Darie-Nita

submission deadline 20 Mar 2026 | Viewed by 17 | 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 Research on Functional Gels

edited by

Jae-Ho Jeong

submission deadline 26 Mar 2026 | Viewed by 20 | Submission Open

Keywords: advanced functional gels; emerging applications of gel materials; innovative synthesis and characterization techniques; computational modeling and simulation of gels; theoretical developments in gel science; fabrication strategies and process engineering; rational materials design for gel-based systems

(This special issue belongs to the Section Gel Chemistry and Physics)

Recent Developments in Cellulose-Based Hydrogels

edited by