Hydrogel
A hydrogel is a three-dimensional, water-rich polymer network formed by physical or chemical cross-linking.
A hydrogel is a three-dimensional, water-rich polymer network formed by physical or chemical cross-linking. Its interconnected structure allows substantial water uptake while retaining a defined shape. hydrogel can be prepared from natural polymers—including chitosan, hyaluronic acid, collagen, alginate, pectin, starch, and protein-based materials—or from synthetic polymers such as polyvinyl alcohol and Pluronic F127. Their composition, cross-link density, porosity, swelling, mechanical properties, and degradation behavior can be adjusted for biological and engineering applications.
In biomedicine, hydrogels are used as wound dressings, injectable matrices, drug-release systems, cell-encapsulation materials, and tissue-engineering scaffolds. They can provide a hydrated environment that supports cell viability, adhesion, and proliferation, while also enabling localized delivery of therapeutics. Depending on their formulation, hydrogels may respond to temperature, pH, light, or other stimuli. These properties have been investigated in contexts involving inflammation, oxidative stress, reactive oxygen species, angiogenesis, bacterial infection, and tissue repair. The recent literature represented here extends a common theme of multifunctional hydrogel design across wound healing, regenerative medicine, three-dimensional culture, sustainable materials, composite mechanics, and non-biological retrieval applications.
Where the papers sit
40 papers from the last 6 months study hydrogel directly · updated from PubMed 1 Nov 2026
Study type 0 clinical trials · 2 human data · 38 preclinical
Themes 4 themes · 1 new direction
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Adaptive Biomaterial Engineering
Adaptive biomaterials are being engineered to combine mechanical resilience with adhesion, conductivity, self-healing and biological activity. Dynamic covalent chemistries, interpenetrating networks and strain-stiffening designs recur across sensors, wound and corneal repair, bone regeneration and bladder reconstruction. Ion doping, ROS scavenging and sustained delivery extend these systems toward osteogenesis, neurite outgrowth and local cancer therapy. The applications remain diverse, with performance tuning rather than one clinical endpoint providing the common direction.
14 papers · 35%
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Antimicrobial Diabetic Wound Care
Diabetic wound care is moving from passive coverage toward multifunctional systems that combine adhesion, hemostasis, antimicrobial action and redox control. Bilirubin, baicalin, tannic acid–iron particles, nanozymes and polydopamine support antioxidant or photothermal treatment, while glucose and pH responsiveness target infection and chronic wound conditions. Sustained EGF delivery and macrophage autophagy modulation broaden the focus from biofilm removal to tissue repair. The recurring challenge is coordinating inflammation, oxidative stress and infection without sacrificing closure.
12 papers · 30%
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Biocompatible Three-Dimensional Matrix Design
Tunable three-dimensional matrices are moving toward precise control of gelation, mechanics, degradation and cell behavior. Digital light processing, two-photon excitation and photocrosslinking provide spatial control, while thermosensitive injection supports cell culture and tissue repair. Fenton chemistry, photothermal functionality and cleavable antibiotic release add therapeutic roles beyond scaffolding. Biocompatibility, swelling and cytocompatibility remain the recurring constraints.
11 papers · 27.5%
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Cellulose Composite Materials
Cellulose-, pectin- and starch-rich networks are being developed as low-cost composite materials from biowaste and bacterial sources. Reinforcement and confinement are used to improve fracture resistance and mechanical integrity, while cellulose backbones also support conductive signal recording. Environmental remediation, especially Cd and Pb contamination, sits alongside sensing rather than a single translational endpoint. The field is converging on multifunctional, more sustainable matrices, but application-specific performance still dominates.
3 papers · 7.5%
Hydrogel becomes a selective chromatographic platform for rare-earth purification
The elastin-based hydrogel for rare-earth-element separation uses hydrogel not as a tissue scaffold, wound dressing, cell culture matrix, or therapeutic delivery depot, but as an active ion-exchange adsorbent. Incorporating lanmodulin into an elastin-based network gave the material selective binding and release of lanthanide ions across regeneration cycles, enabling fractionation from allanite ore containing both rare-earth and non-rare-earth components. This assigns hydrogel a distinct role as a sustainable separation and purification medium rather than as a biomedical or structural material 42734268Sep.
Papers
The 40 papers from the last 6 months that study hydrogel directly, newest first, by theme and by study type. Study types come from PubMed publication types and MeSH headings.
By theme
Adaptive Biomaterial Engineering (14)
- Versatile carboxymethyl cellulose-based pH responsive hydrogel with robust mechanical strength, adhesion, and self-healing for motion monitoring and touchscreen interaction. Carbohydrate polymers · 24 Sept 2026 PMID 42785888
- Mucoadhesive Carboxymethyl Chitosan Hydrogel Eyedrops via Dual Dynamic Covalent Chemistry for Long-Acting Glaucoma Therapy. Biomacromolecules · 14 Sept 2026 PMID 42734286
- Elastin-Based Hydrogel for Selective Adsorption of Rare Earth Elements. Biomacromolecules · 14 Sept 2026 PMID 42734268
- Intrinsically Strain-Stiffening, Conductive, ROS-Scavenging Peptide-Polymer Hydrogel to Promote Neurite Outgrowth. Biomacromolecules · 14 Sept 2026 PMID 42734266
- Bioactive Ion-Doped Monetite/Chitosan Thermosensitive Hydrogels with Dual Osteogenic and Pro-Angiogenic Stimuli for Bone Regeneration. ACS biomaterials science & engineering · 14 Sept 2026 PMID 42733198
- The durability and effectiveness of hydrogel retrieval method for urinary stone fragments: an in-vitro study. World journal of urology · 5 Sept 2026 PMID 42698032
- A loofah skeleton reinforced interpenetrating hydrogel for flexible wearable sensors. Journal of materials chemistry. B · 27 Aug 2026 PMID 42657673
- Tripeptide-based amyloid hydrogels: phenylalanine mutation outcomes on self-assembly, hydrogelation and their cytotoxicity assays. Journal of materials chemistry. B · 27 Aug 2026 PMID 42657517
- Mechanically Matched PGT Hydrogel Enables Functional Bladder Augmentation and Reconstruction without Fibrosis. ACS biomaterials science & engineering · 14 Aug 2026 PMID 42600117
- Novel chitosan/hydroxypropyl methylcellulose/propylene glycol hydrogel containing lyophilized amniotic membrane particles for wound healing: Synthesis and optimization. Biochemical and biophysical research communications · 7 Aug 2026 PMID 42566999
- Gum arabic modulates mechanical properties and microstructural transition in whey protein isolate hydrogels. Carbohydrate polymers · 23 Jul 2026 PMID 42493138
- An injectable thiolated alginate/oxidized dextran hydrogel with curcumin-copper nanoparticles for corneal neovascularization after alkali burn. Carbohydrate polymers · 23 Jul 2026 PMID 42493130
- Local delivery of GPC3-CAR T cells in a thermosensitive hydrogel enhances antitumor efficacy in hepatocellular carcinoma. International immunopharmacology · 6 Jun 2026 PMID 42250289
- Interfacial impedance engineering in ionic hydrogels for integrated enzymatic and electrophysiological sensing. Biosensors & bioelectronics · 17 May 2026 PMID 42143895
Antimicrobial Diabetic Wound Care (12)
- Development of a bioadhesive hydrogel with antioxidant activity for enhanced diabetic wound healing. Soft matter · 12 Oct 2026 PMID 42861696
- pH-Responsive double-network Janus hydrogel incorporates tannic acid-iron nanoparticles for chronic wound healing and monitoring. Acta biomaterialia · 1 Sept 2026 PMID 42679977
- A Dual-Crosslinked Collagen/Hyaluronic Acid/Chitosan Hydrogel for Integrated Hemostasis and Infected Wound Healing. ACS biomaterials science & engineering · 19 Aug 2026 PMID 42615380
- A glucose-triggered cascade catalytic adhesive hydrogel enables mild photothermal-biofilm eradication for infected diabetic wounds. Journal of materials chemistry. B · 18 Aug 2026 PMID 42611790
- An injectable thermosensitive HTCC/Pluronic F127 hydrogel with sustained EGF release for accelerated diabetic wound healing. Biomaterials science · 17 Aug 2026 PMID 42605828
- Efficient Antimicrobial Nanoenzymatic Functionalized Hydrogels for Diabetic Infected Wound Treatment. ACS biomaterials science & engineering · 6 Aug 2026 PMID 42561045
- Dual cross-linked cellulose-based hydrogel enables antibacterial-antioxidant synergy for diabetic wound healing. Carbohydrate polymers · 23 Jul 2026 PMID 42493151
- Thermoresponsive therapeutic alginate hydrogel with bilirubin-loaded polydopamine nanoparticles for enhanced diabetic wound healing. Carbohydrate polymers · 23 Jul 2026 PMID 42493109
- Nanozyme-integrated hydrogel orchestrates mitochondrial quality control to counter inflammatory and oxidative milieu during disc degeneration. Journal of controlled release : official journal of the Controlled Release Society · 18 Jul 2026 PMID 42471059
- An Insect Chitosan/Konjac Glucomannan Multifunctional Photo-Cross-Linking Hydrogel Loaded with a Baicalin Nanodelivery System for Promoting MRSA-Infected Diabetic Wound Healing. Biomacromolecules · 14 Jul 2026 PMID 42446230
- Asymmetric hydrogel with "spear-shield" properties promotes diabetic foot ulcer healing by modulating macrophage autophagy. Journal of controlled release : official journal of the Controlled Release Society · 6 Jul 2026 PMID 42409241
- Adhesive and Hemostatic Hydrogel for the Management of Postpartum Hemorrhage. ACS applied materials & interfaces · 22 Jun 2026 PMID 42325110
Biocompatible Three-Dimensional Matrix Design (11)
- Dual Release of Antibiotics with Additive Effect from Cleavable Hydrogels Based on Amino/Thiol-Yne Click Chemistry. Biomacromolecules · 14 Sept 2026 PMID 42734285
- Three-Dimensional Gelatin-Based Hydrogel Degradation and Cell Control by Two-Photon Excitation. ACS biomaterials science & engineering · 3 Sept 2026 PMID 42690902
- Fabrication of Mechanically Adjustable Silk Fibroin-Based Hydrogels with Excellent Biocompatibility for Skin Wound Repair. ACS biomaterials science & engineering · 31 Aug 2026 PMID 42675005
- Design of Fenton reaction-based poly(γ-glutamic acid)-grafted tyramine hydrogels with intrinsic photothermal properties. Journal of materials chemistry. B · 30 Aug 2026 PMID 42669215
- Cationic injectable hydrogels for wet-tissue sealing with enhanced red blood cell retention. Chemical communications (Cambridge, England) · 17 Aug 2026 PMID 42606918
- Mechanical response of a simple DNA nanostar hydrogel: symptoms of disorder and glassy emergence of solidity. Nanoscale · 17 Aug 2026 PMID 42605668
- Starch granules are instructive scaffolds for synergistic reinforcement and dissipation in hydrogel composites. Science advances · 14 Aug 2026 PMID 42600028
- Systematic multi-parameter optimization of an injectable thermosensitive CS/β-GP/HEC hydrogel for 3D cell culture applications. PloS one · 29 Jul 2026 PMID 42525690
- Polysarcosine as a PEG Alternative Feedstock for 3D Digital Light Processing of Tunable Biocompatible Hydrogels. Biomacromolecules · 27 Jul 2026 PMID 42503779
- A Dural Extracellular Matrix Hydrogel with Neural Stem Cells Improves Recovery from Traumatic Brain Injury in Mice. ACS biomaterials science & engineering · 2 Jul 2026 PMID 42391517
- Effect of pH on the formation mechanism of riboflavin mediated photocrosslinking hydrogel of soybean protein nanofibrils. International journal of biological macromolecules · 18 Jun 2026 PMID 42314887
Cellulose Composite Materials (3)
- Dynamically reconfigurable conductive hydrogels based on the spatial confinement and backbone reinforcement of bacterial cellulose: Signal recognition and human-computer interaction. Carbohydrate polymers · 23 Jul 2026 PMID 42493104
- Sustainable hydrogel from biowaste: Synthesis and characterization of pectin and starch-based hydrogels derived from fruit peel. PloS one · 21 Jul 2026 PMID 42479753
- Insights into cellulose/pectin effect in tobermorite/mandarin orange peel composite hydrogels and rehabilitation effect on Cd- and Pb-contaminated slopes. Journal of chromatography. A · 7 Jul 2026 PMID 42413198
By study type
Human data, design not indexed (2)
- Dynamically reconfigurable conductive hydrogels based on the spatial confinement and backbone reinforcement of bacterial cellulose: Signal recognition and human-computer interaction. Carbohydrate polymers · 23 Jul 2026 PMID 42493104
- Interfacial impedance engineering in ionic hydrogels for integrated enzymatic and electrophysiological sensing. Biosensors & bioelectronics · 17 May 2026 PMID 42143895
Preclinical: animal, cell and lab studies (38)
- Development of a bioadhesive hydrogel with antioxidant activity for enhanced diabetic wound healing. Soft matter · 12 Oct 2026 PMID 42861696
- Versatile carboxymethyl cellulose-based pH responsive hydrogel with robust mechanical strength, adhesion, and self-healing for motion monitoring and touchscreen interaction. Carbohydrate polymers · 24 Sept 2026 PMID 42785888
- Mucoadhesive Carboxymethyl Chitosan Hydrogel Eyedrops via Dual Dynamic Covalent Chemistry for Long-Acting Glaucoma Therapy. Biomacromolecules · 14 Sept 2026 PMID 42734286
- Dual Release of Antibiotics with Additive Effect from Cleavable Hydrogels Based on Amino/Thiol-Yne Click Chemistry. Biomacromolecules · 14 Sept 2026 PMID 42734285
- Elastin-Based Hydrogel for Selective Adsorption of Rare Earth Elements. Biomacromolecules · 14 Sept 2026 PMID 42734268
- Intrinsically Strain-Stiffening, Conductive, ROS-Scavenging Peptide-Polymer Hydrogel to Promote Neurite Outgrowth. Biomacromolecules · 14 Sept 2026 PMID 42734266
- Bioactive Ion-Doped Monetite/Chitosan Thermosensitive Hydrogels with Dual Osteogenic and Pro-Angiogenic Stimuli for Bone Regeneration. ACS biomaterials science & engineering · 14 Sept 2026 PMID 42733198
- The durability and effectiveness of hydrogel retrieval method for urinary stone fragments: an in-vitro study. World journal of urology · 5 Sept 2026 PMID 42698032
- Three-Dimensional Gelatin-Based Hydrogel Degradation and Cell Control by Two-Photon Excitation. ACS biomaterials science & engineering · 3 Sept 2026 PMID 42690902
- pH-Responsive double-network Janus hydrogel incorporates tannic acid-iron nanoparticles for chronic wound healing and monitoring. Acta biomaterialia · 1 Sept 2026 PMID 42679977
- Fabrication of Mechanically Adjustable Silk Fibroin-Based Hydrogels with Excellent Biocompatibility for Skin Wound Repair. ACS biomaterials science & engineering · 31 Aug 2026 PMID 42675005
- Design of Fenton reaction-based poly(γ-glutamic acid)-grafted tyramine hydrogels with intrinsic photothermal properties. Journal of materials chemistry. B · 30 Aug 2026 PMID 42669215
- A loofah skeleton reinforced interpenetrating hydrogel for flexible wearable sensors. Journal of materials chemistry. B · 27 Aug 2026 PMID 42657673
- Tripeptide-based amyloid hydrogels: phenylalanine mutation outcomes on self-assembly, hydrogelation and their cytotoxicity assays. Journal of materials chemistry. B · 27 Aug 2026 PMID 42657517
- A Dual-Crosslinked Collagen/Hyaluronic Acid/Chitosan Hydrogel for Integrated Hemostasis and Infected Wound Healing. ACS biomaterials science & engineering · 19 Aug 2026 PMID 42615380
- A glucose-triggered cascade catalytic adhesive hydrogel enables mild photothermal-biofilm eradication for infected diabetic wounds. Journal of materials chemistry. B · 18 Aug 2026 PMID 42611790
- Cationic injectable hydrogels for wet-tissue sealing with enhanced red blood cell retention. Chemical communications (Cambridge, England) · 17 Aug 2026 PMID 42606918
- An injectable thermosensitive HTCC/Pluronic F127 hydrogel with sustained EGF release for accelerated diabetic wound healing. Biomaterials science · 17 Aug 2026 PMID 42605828
- Mechanical response of a simple DNA nanostar hydrogel: symptoms of disorder and glassy emergence of solidity. Nanoscale · 17 Aug 2026 PMID 42605668
- Mechanically Matched PGT Hydrogel Enables Functional Bladder Augmentation and Reconstruction without Fibrosis. ACS biomaterials science & engineering · 14 Aug 2026 PMID 42600117
- Starch granules are instructive scaffolds for synergistic reinforcement and dissipation in hydrogel composites. Science advances · 14 Aug 2026 PMID 42600028
- Novel chitosan/hydroxypropyl methylcellulose/propylene glycol hydrogel containing lyophilized amniotic membrane particles for wound healing: Synthesis and optimization. Biochemical and biophysical research communications · 7 Aug 2026 PMID 42566999
- Efficient Antimicrobial Nanoenzymatic Functionalized Hydrogels for Diabetic Infected Wound Treatment. ACS biomaterials science & engineering · 6 Aug 2026 PMID 42561045
- Systematic multi-parameter optimization of an injectable thermosensitive CS/β-GP/HEC hydrogel for 3D cell culture applications. PloS one · 29 Jul 2026 PMID 42525690
- Polysarcosine as a PEG Alternative Feedstock for 3D Digital Light Processing of Tunable Biocompatible Hydrogels. Biomacromolecules · 27 Jul 2026 PMID 42503779
- Dual cross-linked cellulose-based hydrogel enables antibacterial-antioxidant synergy for diabetic wound healing. Carbohydrate polymers · 23 Jul 2026 PMID 42493151
- Gum arabic modulates mechanical properties and microstructural transition in whey protein isolate hydrogels. Carbohydrate polymers · 23 Jul 2026 PMID 42493138
- An injectable thiolated alginate/oxidized dextran hydrogel with curcumin-copper nanoparticles for corneal neovascularization after alkali burn. Carbohydrate polymers · 23 Jul 2026 PMID 42493130
- Thermoresponsive therapeutic alginate hydrogel with bilirubin-loaded polydopamine nanoparticles for enhanced diabetic wound healing. Carbohydrate polymers · 23 Jul 2026 PMID 42493109
- Sustainable hydrogel from biowaste: Synthesis and characterization of pectin and starch-based hydrogels derived from fruit peel. PloS one · 21 Jul 2026 PMID 42479753
- Nanozyme-integrated hydrogel orchestrates mitochondrial quality control to counter inflammatory and oxidative milieu during disc degeneration. Journal of controlled release : official journal of the Controlled Release Society · 18 Jul 2026 PMID 42471059
- An Insect Chitosan/Konjac Glucomannan Multifunctional Photo-Cross-Linking Hydrogel Loaded with a Baicalin Nanodelivery System for Promoting MRSA-Infected Diabetic Wound Healing. Biomacromolecules · 14 Jul 2026 PMID 42446230
- Insights into cellulose/pectin effect in tobermorite/mandarin orange peel composite hydrogels and rehabilitation effect on Cd- and Pb-contaminated slopes. Journal of chromatography. A · 7 Jul 2026 PMID 42413198
- Asymmetric hydrogel with "spear-shield" properties promotes diabetic foot ulcer healing by modulating macrophage autophagy. Journal of controlled release : official journal of the Controlled Release Society · 6 Jul 2026 PMID 42409241
- A Dural Extracellular Matrix Hydrogel with Neural Stem Cells Improves Recovery from Traumatic Brain Injury in Mice. ACS biomaterials science & engineering · 2 Jul 2026 PMID 42391517
- Adhesive and Hemostatic Hydrogel for the Management of Postpartum Hemorrhage. ACS applied materials & interfaces · 22 Jun 2026 PMID 42325110
- Effect of pH on the formation mechanism of riboflavin mediated photocrosslinking hydrogel of soybean protein nanofibrils. International journal of biological macromolecules · 18 Jun 2026 PMID 42314887
- Local delivery of GPC3-CAR T cells in a thermosensitive hydrogel enhances antitumor efficacy in hepatocellular carcinoma. International immunopharmacology · 6 Jun 2026 PMID 42250289
Written from 40 PubMed abstracts, each one listed by PMID above. Published: 2026-09-11. Last written: 2026-09-16 by GPT. Drafted by language models from published abstracts; not medical advice.