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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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Hydrogels in Biomedicine

edited by

Eleonora Russo

and

Carla Villa

submission deadline 30 Nov 2025 | 2 articles | Viewed by 1758 | 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)

Current Research on Eutectogels

edited by

Liane Meneses

and

Ana Rita Xavier De Jesus Gameiro

submission deadline 30 Nov 2025 | 1 articles | Viewed by 849 | Submission Open

Keywords: eutectogel; gel; deep eutectic solvents; polymer; biomaterials; applications

(This special issue belongs to the Section Gel Applications)

Sustainable Functional Hydrogels in Flexible Electronics, Energy and Thermoelectrics

edited by

Leire Ruiz-Rubio

and

Mario Culebras

submission deadline 30 Nov 2025 | 1 articles | Viewed by 717 | Submission Open

Keywords: functional hydrogels; flexible electronic; sensor and actuators; thermoelectric; energy; batteries

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

Gels for Plant-Based Food Applications (2nd Edition)

edited by

Qiang Wang

and

Jinchuang Zhang

submission deadline 30 Nov 2025 | 1 articles | Viewed by 677 | 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)

Research and Application of Injectable Hydrogels

edited by

Hongwei Cheng

and

Zibiao Li

submission deadline 30 Nov 2025 | Viewed by 374 | Submission Open

Keywords: injectable hydrogel; biomechanics drug delivery; stimuli-responsive hydrogel; theranostics

(This special issue belongs to the Section Gel Applications)

Advancements in Biopolymer-Based Functional Hydrogels for Intelligent Wearable Devices and Textiles

edited by Hong Zhao and

Kindness Alfred Uyanga

submission deadline 30 Nov 2025 | Viewed by 290 | Submission Open

Keywords: biopolymer-based hydrogels; sustainable microstructure designs; intelligent wearables

(This special issue belongs to the Section Gel Applications)

Biopolymeric Hydrogels for Drug Delivery and Tissue Regeneration

edited by Nairrita Majumder and Nandita Das

submission deadline 30 Nov 2025 | Viewed by 135 | Submission Open

Keywords: gels; hydrogels; wound healing; chronic wounds; burn; tissue scaffolding; tissue engineering; anti-microbial applications

(This special issue belongs to the Section Gel Applications)

Food Gels: Structure and Application

edited by

Monika Jokūbaitė

and Kristina Ramanauskienė

submission deadline 30 Nov 2025 | Viewed by 122 | Submission Open

Keywords: food gels; proteins; polysaccharides; lipids; formulation and structure design; structure– property relationship; gel-based foods

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

Recent Development and Theoretical View of Physical Gels

edited by

Di Jia

and

Pablo H. Di Chenna

submission deadline 30 Nov 2025 | Viewed by 117 | Submission Open

Keywords: physical gels; mechanical strength; resilience; responsiveness; drug delivery; tissue engineering; food technology

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

Hydrogels for Bone Regeneration (2nd Edition)

edited by

Jennifer Z. Paxton

submission deadline 30 Nov 2025 | Viewed by 74 | Submission Open

Keywords: hydrogels; polymer gels; bone; bone regeneration; bone tissue engineering; osteoblasts; osteoclasts

(This special issue belongs to the Section Gel Applications)

Cellulose-Based Hydrogels for Advanced Applications

edited by

Diana Elena Ciolacu

submission deadline 15 Dec 2025 | 1 articles | Viewed by 423 | 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)

Innovative Gels: Structure, Properties, and Emerging Applications

edited by

Teodora Staicu

and

Marin Micutz

submission deadline 20 Dec 2025 | 2 articles | Viewed by 2398 | Submission Open

Keywords: hydrogels; organogels; gel characterization; gel properties; gel applications

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

Hydrogel-Based Scaffolds with a Focus on Medical Use (3rd Edition)

edited by

Federica Re

and

Elisa Borsani

submission deadline 20 Dec 2025 | 1 articles | Viewed by 1719 | Submission Open

Keywords: hydrogel-based scaffolds; resorbable scaffolds; synthesis of biomaterials; mesenchymal stromal cells; bioengineered models; bone regeneration; cartilage regeneration; skin regeneration

(This special issue belongs to the Section Gel Applications)

Synthesis and Applications of Hydrogels (3rd Edition)

edited by

Jun Huang

submission deadline 20 Dec 2025 | 2 articles | Viewed by 1296 | Submission Open

Keywords: biomaterials; sensors and actuators; adhesives; flexible electronics; 3D printing; drug delivery; network

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

Gels for Energy Applications

edited by Panpan Zhao and

Miguel Sanchez-Soto

submission deadline 20 Dec 2025 | Viewed by 300 | Submission Open

Keywords: gels; bio-based materials; phase change materials; energy storage/release; thermal management

(This special issue belongs to the Section Gel Applications)

Advances in Cellulose-Based Gels

edited by

Danica Zmejkoski

and

Ksenija Radotić

submission deadline 20 Dec 2025 | Viewed by 81 | Submission Open

Keywords: biomedical applications; drug delivery systems; functional biomaterials; environmental application; electrochemical materials; coatings and films; sustainable materials

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

Natural Bioactive Compounds and Gels

edited by

and

submission deadline 25 Dec 2025 | 4 articles | Viewed by 12580 | Submission Open

Keywords: polyphenols; bioactive compounds; HPLC; biological activity; gelling agents; food fortification; functional additives; bioavailability; active coatings; micro- and nanocapsules; carbohydrates; hydrocolloids; rheology; thixotropy

(This special issue belongs to the Section Gel Applications)

Advanced Hydrogels for Tissue Engineering and Drug Delivery (2nd Edition)

edited by

Jin-Oh Jeong

submission deadline 31 Dec 2025 | 3 articles | Viewed by 16011 | Submission Open

Keywords: biomaterial; hydrogel; tissue engineering; smart drug delivery; biopolymers

(This special issue belongs to the Section Gel Applications)

Gels: 10th Anniversary

edited by

Esmaiel Jabbari

and

Gulden Camci-Unal

submission deadline 31 Dec 2025 | 11 articles | Viewed by 15178 | Submission Open

Keywords: hydrogels with hierarchical and self-assembled structures; environmentally sustainable; compatible and resorbable hydrogels; load-bearing and self-healing hydrogels; hydrogels for cell encapsulation and bio-fabrication; hydrogels for micro-patterning; micro-fluidic devices and high-throughput screening; hydrogels for injectable; in situ gelling and minimally invasive applications; hydrogels for modulating the immune response; hydrogels for spatiotemporal delivery of growth factors; particulate; nano- and micro-structured hydrogels for drug delivery; hydrogels for protein; RNA and DNA delivery; hydrogels in medicine; biotechnology and pharmacy; hydrogels in tissue engineering and regenerative medicine; hydrogels in cosmetics; hygiene and personal care products; hydrogels in agriculture; food production and eco-friendly applications; hydrogels in electro-magneto-mechanical devices; hydrogels in oil and gas exploration; hydrogels in energy applications; hydrogel in chemical processing

(This special issue belongs to the Section Gel Applications)

Thixotropic Gels: Mechanisms, Functions and Applications

edited by

Nataša Šijaković Vujičić

and

Anabela Raymundo

submission deadline 31 Dec 2025 | 6 articles | Viewed by 11748 | Submission Open

Keywords: thixotropy; self-assembly; organogels; rheology; applications; 3D-printing gels

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

Recent Advances in Biopolymer Gels (2nd Edition)

edited by

Luis Morales-Quintana

and

Milton Vázquez-Lepe

submission deadline 31 Dec 2025 | 5 articles | Viewed by 6240 | Submission Open

Keywords: synthesis and characterization of biodegradable biopolymers; approaches for biodegradable biopolymers (wastewater treatment); biodegradable biopolymeric material with properties of detoxification; bioremediation; or bio-absorption; biopolymer gels in the food industry; biopolymer gels for controlled release

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

Smart Hydrogel for Wound Healing and Tissue Repair

edited by Xiayi Xu and Boguang Yang

submission deadline 31 Dec 2025 | 2 articles | Viewed by 5800 | Submission Open

Keywords: hydrogel; wound healing; tissue repair; stimuli-responsive; wound dressing; regenerative medicine; biomedical application; anti-inflammation; biomaterials; bio-adhesion

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

State-of-the Art Gel Research in USA

edited by

Esmaiel Jabbari

and

Nasim Annabi

submission deadline 31 Dec 2025 | 3 articles | Viewed by 5049 | Submission Open

Keywords: gels; chemistry; physics; characterization; processing; applications

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

Gel-Based Materials for Sensing and Monitoring

edited by

Xiao Li

submission deadline 31 Dec 2025 | 2 articles | Viewed by 4724 | Submission Open

Keywords: gel-based materials; wearable sensors; stimuli-responsive gels; self-healing materials; biocompatibility; real-time monitoring

(This special issue belongs to the Section Gel Applications)

Advanced Gels in the Food System

edited by Xiaokang Na, Wuchao Ma and

Zihao Wei

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3859 | 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)

Conductive Gels: Preparation, Properties and Applications

edited by

Konstantin Milakin

and

Pavel Gurikov

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2474 | 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)

Hydrogels with Appropriate/Tunable Properties for Biomedical Applications (3rd Edition)

edited by

Yanyu Yang

Yazhong Bu

and Feifei Sun

submission deadline 31 Dec 2025 | 3 articles | Viewed by 2459 | Submission Open

Keywords: functional hydrogels; biomedical applications; adhesives; smart hydrogels; medical devices; health diagnosis

(This special issue belongs to the Section Gel Applications)

Recent Advances in Multi-Material Hydrogel Bioinks for 3D Bioprinting

edited by

Jiannan Li

and

Xin Jing

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2214 | Submission Open

Keywords: bioprinting; multi-material bioink; biomaterials; hydrogel; tissue engineering; regenerative medicine; flexible wearable devices; health monitoring

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

Functional Hydrogels: Design, Processing and Biomedical Applications

edited by

Jianhao Wang

and

Cheng Wang

submission deadline 31 Dec 2025 | 2 articles | Viewed by 2049 | Submission Open

Keywords: functional hydrogels; biomedical applications; drug delivery systems; tissue engineering; 3D bioprinting; stimuli-responsive materials; regenerative medicine

(This special issue belongs to the Section Gel Applications)

Safety of Aerogel Materials

edited by

Zhi Li

and

Changcheng Liu

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1682 | 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)

Aerogels: Promising Materials for Environmental Applications

edited by

Islam Minisy

and

Durga Parajuli

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1530 | 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)

Preparation, Structure-Property Relationships, and Applications of Emulsion Gels

edited by Peilong Li, Tongze Zhang, Saphwan Al-Assaf and

Liuping Fan

submission deadline 31 Dec 2025 | 1 articles | Viewed by 1054 | Submission Open

Keywords: emulsion; gel; polymer; oil; rheology; interfacial phenomena; microstructure; food structuring; bioactive delivery

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

Polymer Gels for Oil Recovery and Industry Applications

edited by Yinbo He,

Zheyu Liu

Yiqiang Li

and Jingyang Pu

submission deadline 31 Dec 2025 | 1 articles | Viewed by 974 | 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)

Recent Advances in Multi-Functional Polymer-Based Hydrogels

edited by

Mustapha El Hariri El Nokab

and

Khaled Sebakhy

submission deadline 31 Dec 2025 | 1 articles | Viewed by 918 | Submission Open

Keywords: multi-functional polymer-based hydrogels; biomedicine; environmental science; soft robotics; mechanical strength; self-healing properties; stimuli-responsive behavior; conductivity; bioactivity

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

Synthesis and Application of Aerogel (2nd Edition)

edited by Guanglei Zhang

submission deadline 31 Dec 2025 | 1 articles | Viewed by 840 | Submission Open

Keywords: aerogel; synthesis; property; application

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

Novel Gels for 3D Bioprinting in Tissue Engineering

edited by

Élida B. Hermida

and

Martin Federico Desimone

submission deadline 31 Dec 2025 | 2 articles | Viewed by 795 | Submission Open

Keywords: bioinks; bioprinting; biofabrication; printability; stimuli-responsive gels; rheology; tissue-engineering; 3D bioprinting

(This special issue belongs to the Section Gel Applications)

Application of Gel Dosimetry

edited by Gabriele Magugliani and Eros Mossini

submission deadline 31 Dec 2025 | 1 articles | Viewed by 683 | 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)

Design, Characterization and Applications of Smart Hydrogels

edited by Zhen Zhang and

Noureddine Abidi

submission deadline 31 Dec 2025 | Viewed by 444 | 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

Beatriz Trindade Barrocas

submission deadline 31 Dec 2025 | Viewed by 252 | 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 Lignin-Based Hydrogels

edited by Daochen Zhu

submission deadline 31 Dec 2025 | Viewed by 203 | 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

Seongcheol Kim

submission deadline 31 Dec 2025 | Viewed by 154 | 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,

Kausik Mukhopadhyay

and

Thomas Kean

submission deadline 31 Dec 2025 | Viewed by 151 | 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)

Advances in Engineering Emulsion Gels for Food Application

edited by

Sorina Ropciuc

and

Cristina Damian

submission deadline 31 Dec 2025 | Viewed by 104 | 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 82 | 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 | 12 articles | Viewed by 15317 | 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 158 | 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 155 | 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 46 | 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

Guilhem Godeau

submission deadline 20 Jan 2026 | 5 articles | Viewed by 10791 | 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)

edited by

Mihaela Ciopec

and

Cristina Paul

submission deadline 20 Jan 2026 | 6 articles | Viewed by 9618 | 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)

Displaying special issue 101-150 on page 3 of 6.

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