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Tissue repair is an extremely complex process, and effectively promoting tissue regeneration remains a significant clinical challenge. Hydrogel materials, which exhibit physical properties closely resembling those of living tissues, including high water content, oxygen permeability, and softness, have the potential to revolutionize the field of tissue repair. However, the presence of various complex conditions, such as infection, ischemia, and hypoxia in tissue defects, means that hydrogels with simple structures and functions are often insufficient to meet the diverse needs of tissue repair. Researchers have focused on integrating multiple drugs, nanomaterials, bioactive substances, and stem cells into hydrogel matrices to develop novel multifunctional composite hydrogels for addressing these challenges, which have superior antibacterial properties, hemostatic abilities, self-healing capacities, and excellent mechanical properties. These composite hydrogels are designed to enhance tissue repair and have become an important direction in the current research. This review provides a comprehensive review of the recent advances in the application of multifunctional composite hydrogels in promoting tissue repair, including drug-loaded hydrogels, nanomaterial composite hydrogels, bioactive substance composite hydrogels, and stem cell composite hydrogels.
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http://dx.doi.org/10.1021/acsomega.4c08103 | DOI Listing |
Adv Wound Care (New Rochelle)
September 2025
Beijing Laboratory of Biomedical Materials, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, PR China.
Wound healing is a complex, tightly regulated process involving a range of enzymes, growth factors, and cytokines that coordinate cellular activities essential for tissue repair and wound closure. However, in cases of extensive or severe injury, the intrinsic repair mechanisms are often insufficient, underscoring the need for advanced therapeutic strategies to accelerate healing and minimize scar formation. Electrically conductive hydrogels (ECHs), combining the advantageous properties of hydrogels with the physiological and electrochemical characteristics of conductive materials, present a safer and more convenient alternative to traditional electrode-based electrical stimulation (ES) for treating chronic and nonhealing wounds.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong, 510006, China. Electronic address:
The development of effective hemostatic and antibacterial dressings remains a critical challenge in wound management. We report the design and fabrication of novel porous composite hydrogels composed of carboxymethyl cellulose (CMC), silica (SiO), and zinc oxide nanoparticles (ZnO NPs) . The incorporation of SiO and ZnO NPs into the CMC hydrogel matrix resulted in a unique multi-scale porous structure, characterized by interconnected holes of various sizes, which significantly enhanced the hydrogel's liquid absorption capacity and mechanical strength.
View Article and Find Full Text PDFInt J Pharm
September 2025
Department of Biomedical Engineering, Amirkabir University of Technology (Tehran polytechnic), Iran. Electronic address:
Hydrogen sulfide (HS) has been recognized as one of the three main gasotransmitters found extensively in tissues, regulating functions crucial for survival. In many pathological cases, its concentration drops from the intrinsic level, impairing healing and leading to unmet regeneration outcomes. A hybrid microparticle/hydrogel system was developed to sustainably release HS and regulate its level in deprived tissues.
View Article and Find Full Text PDFAdv Colloid Interface Sci
September 2025
Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), Shandong University, Jinan 250100, PR China. Electronic address:
Multiple stretchable gels with conductivity have been thoroughly prepared in diverse solvents historically to modulate their superlative properties in a multitude of applications, such as soft robotics, wearable devices, and e-skins. Eutectogels are considered as an emerging class of gels that combine the best features of both hydrogels and organogels, including environmental friendliness, thermal stability and customizable nature. Eutectogels, composed of deep eutectic solvents (DES) immobilized within different matrices, not only inherit the merits of DES, but also show some additional properties derived from the special structure and compositions, which are conducive to development potential.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
September 2025
Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Via De Sanctis, Campobasso, 86100, Italy. Electronic address:
Four different biomedical patches were bioprinted using nanocomposite hydrogels of sodium alginate/gelatin, sodium alginate/gelatin/indocyanine green freely dispersed, sodium alginate/gelatin/empty liposomes and sodium alginate/gelatin/indocyanine green loaded liposomes. Quasi-static and dynamic nanoindentations of the patch surfaces were performed to examine the effect of the single component on the mechanical response. The combination of results suggests that the mechanical structure of the gels is strongly influenced by crosslinking and the liposomes incorporating dye.
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