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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 polices 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

Qiang Wang

and

Jinchuang Zhang

submission deadline 31 Dec 2024 | Viewed by 156 | 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)

Gel-Supported Catalysts for Sustainable Chemistry

edited by Maria H. L. Ribeiro

submission deadline 31 Dec 2024 | Viewed by 149 | Submission Open

Keywords: gels; hydrogels; enzymes; cells; biocatalysis; sustainable biocatalysis

(This special issue belongs to the Section Gel Applications)

Synthesis and Applications of Hydrogels (2nd Edition)

edited by

Jun Huang

submission deadline 10 Jan 2025 | 8 articles | Viewed by 16228 | 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 Flexible Electronics and Energy Devices (2nd Edition)

edited by

Yi-Zhou Zhang

and

Wen-Yong Lai

submission deadline 10 Jan 2025 | 1 articles | Viewed by 882 | 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)

Novel Functional Gels for Biomedical Applications

edited by Jilong Wang

submission deadline 15 Jan 2025 | 8 articles | Viewed by 13455 | Submission Open

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

(This special issue belongs to the Section Gel Applications)

Synthesis and Application of Aerogel

edited by Guanglei Zhang

submission deadline 15 Jan 2025 | 4 articles | Viewed by 9073 | Submission Open

Keywords: aerogel; synthesis; property; application

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

Recent Advances in Biopolymer Gels

edited by

Luis Morales-Quintana

submission deadline 15 Jan 2025 | 5 articles | Viewed by 5302 | Submission Open

Keywords: synthesis and characterization of biodegradable biopolymers; approaches for biodegradable biopolymers (wastewater treatment); biodegradable biopolymeric 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 Applications)

Advanced Hydrogel for Water Treatment (2nd Edition)

edited by

Chun Zhao

submission deadline 15 Jan 2025 | Viewed by 115 | 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)

Feature Papers in Chemistry and Physics of Biological Gels

edited by

Esmaiel Jabbari

submission deadline 20 Jan 2025 | 5 articles | Viewed by 10256 | Submission Open

Keywords: biological gels; multiscale structure; chemistry and molecular interactions; macroscale properties

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

Design and Development of Gelatin-Based Materials

edited by Bing Zhang

submission deadline 20 Jan 2025 | 8 articles | Viewed by 9928 | 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 Hydrogels and Hydrogel-Based Composites

edited by Gi Doo Cha

submission deadline 20 Jan 2025 | 4 articles | Viewed by 7005 | Submission Open

Keywords: hydrogel; nanocomposites; biocomposites; soft material; biomaterial; biomedical application

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

Gels for Biomedical Applications

edited by

Joaquim Suñer-Carbó

and

Helena Colom-Codina

submission deadline 20 Jan 2025 | 2 articles | Viewed by 4478 | Submission Open

Keywords: gels; hydrogels; smart gels; in situ gels; biomedical applications; drug delivery; tissue engineering; wound healing

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

Recent Advances in Crosslinked Gels (2nd Edition)

edited by Qinguo Fan

submission deadline 20 Jan 2025 | Viewed by 116 | Submission Open

Keywords: polymeric gels; crosslinked gels; supramolecular gels; synthesis of polymers; characterization of gels; smart gels; stimuli-responsive gels; applications; drug delivery; sensors; tissue engineering; adsorption

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

Gels in Medicine and Pharmacological Therapies (2nd Edition)

edited by

Chun Xu

Wendong Gao

and

Lan Xiao

submission deadline 25 Jan 2025 | 6 articles | Viewed by 14220 | Submission Open

Keywords: gels; manufacturing; drug delivery; regenerative medicine

(This special issue belongs to the Section Gel Applications)

Advances in Hydrogels for Biomedical Applications

edited by

Nicola Zerbinati

submission deadline 30 Jan 2025 | 7 articles | Viewed by 27269 | Submission Open

Keywords: injectable crosslinked hydrogel; dermatological field; aesthetic field; mechanical properties; crosslinking agent; preclinical study; clinical study

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

Cellulose- and Nanocellulose-Based Gels: Design and Applications

edited by

Annachiara Pirozzi

Luis Serrano

and

Francesco Donsì

submission deadline 30 Jan 2025 | 3 articles | Viewed by 5401 | Submission Open

Keywords: cellulose; nanocellulose; cellulose-based gels; nanocellulose-based gels; colloids; nanocomposites; gelation mechanism; crosslinking methods; gel properties; emerging applications; drug delivery systems; tissue engineering; food technology; cosmetics; environmental remediation

(This special issue belongs to the Section Gel Applications)

Properties and Applications of Biomaterials Related to Gels (2nd Edition)

edited by

Shige Wang

submission deadline 31 Jan 2025 | 4 articles | Viewed by 8144 | Submission Open

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

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

Polysaccharide: Gelation Arts

edited by

Gabriela Ionita

submission deadline 31 Jan 2025 | 5 articles | Viewed by 7006 | Submission Open

Keywords: polysaccharides; noncovalent polymer gelation; covalent crosslinking; noncovalent crosslinking; ipn and semi-ipn networks; viscoelastic properties of polysaccharide gels; biomaterials

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

Hydrogels, Oleogels and Bigels Used for Drug Delivery

edited by

Robert-Alexandru Vlad

Adriana Ciurba

Paula Antonoaea

and Aline F. Miller

submission deadline 31 Jan 2025 | 4 articles | Viewed by 5208 | 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)

Physicochemical Properties and Applications of Gel Materials

edited by

Nikolaos Bouropoulos

submission deadline 31 Jan 2025 | 3 articles | Viewed by 5002 | 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)

Research Progress and Application Prospects of Gel Electrolytes

edited by

Ana Isabel Ribeiro

and

Andrea Zille

submission deadline 31 Jan 2025 | 3 articles | Viewed by 4811 | Submission Open

Keywords: gel electrolytes; safer electrolytes; flexible electronics; environmentally friendly electrolytes; capacitors; batteries; conductive materials

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

Gels in the Oil Field

edited by Lei Zhang

submission deadline 31 Jan 2025 | 3 articles | Viewed by 2670 | Submission Open

Keywords: gel; oil field; exploration and development; CCUS; functional materials

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

Radiation-Induced Hydrogels and Their Applications

edited by

Jae-Ho Jeong

submission deadline 31 Jan 2025 | 1 articles | Viewed by 2517 | Submission Open

Keywords: radiation; hydrogels; natural polymer; drug delivery; biomedical applications

(This special issue belongs to the Section Gel Applications)

Eco-Friendly Gels for Adsorption

edited by

Elena Ungureanu

and Valentin Popa

submission deadline 31 Jan 2025 | 2 articles | Viewed by 2155 | Submission Open

Keywords: gels/biogels/agrogels/hydrogels; adsorption; adsorbents/bioadsorbents; polymers; heavy metal ions; biocides; dye; pollutants; environmental science; wastewater remediation; wastewater treatment; renewable resources; biodegradable materials

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

Functional Gels Loaded with Natural Products

edited by Kristina Ramanauskienė

submission deadline 31 Jan 2025 | 1 articles | Viewed by 1983 | 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)

Hydrogels, Microgels and Nanogels Emerging Platforms for Drug Delivery, Antibacterial Properties and Tissue Engineering

edited by Dimitrios Skoulas and

Paula M. T. Ferreira

submission deadline 31 Jan 2025 | 2 articles | Viewed by 1815 | Submission Open

Keywords: hydrogels; microgels; nanogels; drug delivery; antibacterial properties; tissue engineering

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

Gel Film and Its Wide Range of Applications

edited by

Priscilla Barbosa Sales De Albuquerque

, María G. Carneiro-Da-Cunha and Paulo Antônio Galindo Soares

submission deadline 31 Jan 2025 | 1 articles | Viewed by 1693 | Submission Open

Keywords: biotechnology; polymeric matrices; three-dimensional network; swelling; water content

(This special issue belongs to the Section Gel Applications)

Advanced Gel Materials for Bioengineering

edited by Shuhui Yang and

Haibo Mu

submission deadline 31 Jan 2025 | 1 articles | Viewed by 1330 | Submission Open

Keywords: gel material; synthesis and characterization; bioengineering; tissue engineering; drug delivery; biosensing; diagnosis

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

Hydrogels for Biomedical Applications: New Sight

edited by Céline Valéry

submission deadline 31 Jan 2025 | 1 articles | Viewed by 1127 | Submission Open

Keywords: biomaterials; hydrogels; amyloid; peptide self-assembly; brain peptides; bionanotechnology

(This special issue belongs to the Section Gel Applications)

Multifunctional Microgels: Synthesis, Properties, and Applications

edited by

Jacek Janusz Walkowiak

, Se-Hyeong Jung and

Andrij Pich

submission deadline 31 Jan 2025 | Viewed by 233 | Submission Open

Keywords: microgel synthesis; microgel characterization; network dynamics; multifunctional microgels; microgel application

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

Recent Advances in Aerogel-Based Composites (2nd Edition)

edited by

Xiao Li

submission deadline 31 Jan 2025 | Viewed by 140 | Submission Open

Keywords: functional aerogels; hybrid aerogels; 3D porous structure; physicochemical properties; large-scale production; applications

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

Edible Coatings and Film: Gel-Based Innovations

edited by

Roberta Passafiume

Ilenia Tinebra

and

Vittorio Farina

submission deadline 31 Jan 2025 | Viewed by 136 | Submission Open

Keywords: gel-based materials; edible coatings; food preservation; sustainable packaging; biopolymers; active packaging; intelligent packaging; food quality; shelf-life extension; environmental impact; food safety

(This special issue belongs to the Section Gel Applications)

Hydrogels for Biomedical Applications: New Knowledge (2nd Edition)

edited by

Naphtali O’Connor

submission deadline 31 Jan 2025 | Viewed by 126 | Submission Open

Keywords: hydrogels; biomaterials; tissue engineering; regenerative medicine; biosensors; drug delivery; bioprinting

(This special issue belongs to the Section Gel Applications)

Hydrogels for Therapeutic Delivery: Current Developments and Future Directions

edited by Georgia Kythreoti and

Michael Arkas

submission deadline 20 Feb 2025 | 6 articles | Viewed by 9333 | Submission Open

Keywords: natural polymers; synthetic polymers; biodegradability; controlled release; drug targeted delivery; AI and nanotechnology; clinical applications

(This special issue belongs to the Section Gel Applications)

Design, Fabrication, and Applications of Food Composite Gels

edited by Shima Momen and

Mahsa Majzoobi

submission deadline 20 Feb 2025 | 2 articles | Viewed by 3301 | Submission Open

Keywords: food texture; nutritional benefits; innovative food products; component interactions; hydrogel; protein functionality; plant protein; encapsulation; bioactive compounds; food engineering

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

Hydrogels, Microgels, and Nanogels: From Fundamentals to Applications (2nd Edition)

edited by

Valentina Nigro

and

Francesca Limosani

submission deadline 20 Feb 2025 | 3 articles | Viewed by 3091 | Submission Open

Keywords: hydrogels; microgels; polymers; colloids; synthesis; characterization; applications; swelling; phase behavior; stimuli responsive

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

Biomaterials for Respiratory Drug Delivery with a Focus on Gels

edited by

Haoying Li

submission deadline 20 Feb 2025 | Viewed by 344 | Submission Open

Keywords: biomaterials; gels; respiratory drug delivery; controlled drug release; mucosal adhesion; permeation of biotherapeutics; aerogels; inhaled mRNA/DNA vaccines

(This special issue belongs to the Section Gel Applications)

Current Directions and Prospects of Hydrogels for Biomedical Applications

edited by

Zhiyuan Jia

Holger Schönherr

and

Nowsheen Goonoo

submission deadline 28 Feb 2025 | 7 articles | Viewed by 18986 | Submission Open

Keywords: hydrogels; stimuli-responsive materials; self-healing; nanocomposite; biomedical application

(This special issue belongs to the Section Gel Applications)

Gels for Water Treatment

edited by

Andrei Sarbu

Anita-Laura Chiriac

and

Anamaria Zaharia

submission deadline 28 Feb 2025 | 8 articles | Viewed by 14416 | Submission Open

Keywords: gels; nano-hybrid gels; water treatments; emerging contaminants; water remediations; innovative techniques

(This special issue belongs to the Section Gel Applications)

Advances in Gels for Wound Treatment

edited by

Md Shaifur Rahman

and

Pasquale Del Gaudio

submission deadline 28 Feb 2025 | 2 articles | Viewed by 11777 | Submission Open

Keywords: wound treatment; wound healing; gel biomaterials; drug delivery; formulation strategies; bioactive agents; tissue regeneration; wound dressings; clinical applications

(This special issue belongs to the Section Gel Applications)

Functionalized Gels for Environmental Applications (2nd Edition)

edited by

Luca Burratti

Paolo Prosposito

and

Iole Venditti

submission deadline 28 Feb 2025 | 7 articles | Viewed by 10152 | Submission Open

Keywords: functionalized matrices; doped matrices; gels; noble metal nanoparticles; noble metal nanoclusters; quantum dots; sensing; remediation of environment; heavy metal ions; pesticides; toxic gaseous compounds

(This special issue belongs to the Section Gel Applications)

Bioactive Gel Films and Coatings Applied in Active Food Packaging (2nd Edition)

edited by

Aris Giannakas

Constantinos Salmas

and

Charalampos Proestos

submission deadline 28 Feb 2025 | 4 articles | Viewed by 8841 | 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)

Biopolymer Gels as Smart Drug Delivery and Theranostic Systems

edited by

Madhappan Santhamoorthy

and

Seongcheol Kim

submission deadline 28 Feb 2025 | 3 articles | Viewed by 6096 | Submission Open

Keywords: biopolymers; hydrogels; drug delivery; stimuli responsive; self-assembly; biopolymeric hydrogels; tissue engineering; wound dressing; multifunctional hydrogels; cancer therapy; tissue engineering; soft materials; composite hydrogels; theranostics; micro/nanogels

(This special issue belongs to the Section Gel Applications)

Rheological Studies and Applications of Hydrogels Related to Drug Delivery

edited by

Zsófia Edit Pápay

Norbert Varga

and

György T. Balogh

submission deadline 28 Feb 2025 | 4 articles | Viewed by 5856 | Submission Open

Keywords: applications of hydrogels; hydrogels in drug delivery; rheology of hydrogels; role of rheology in drug delivery; properties of hydrogels

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

Liposomal and Ethosomal Gels: From Design to Application (2nd Edition)

edited by

Maddalena Sguizzato

and

Rita Cortesi

submission deadline 28 Feb 2025 | 3 articles | Viewed by 4802 | Submission Open

Keywords: liposomes; niosomes; ethosomes; hydrogels; topical application; vesicular gels; formulation; characterization

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

Gel Materials in Advanced Energy Systems

edited by

Antonia Stoyanova

submission deadline 28 Feb 2025 | 3 articles | Viewed by 4255 | 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)

Advanced Gels for Oil Recovery (2nd Edition)

edited by

Han Jia

and

Mingwei Zhao

submission deadline 28 Feb 2025 | 2 articles | Viewed by 3507 | Submission Open

Keywords: application of polymer gels in improved oil recovery; theory of polymer gels in improved oil recovery; synthesis and characterization of advanced polymer gels; structure-property relationships of novel polymer; unconventional oil and gas exploration and development

(This special issue belongs to the Section Gel Applications)

Polymeric Hydrogels for Biomedical Application

edited by