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Osteoarthritis is one of the most common degenerative joint diseases, which seriously affects the life of middle-aged and elderly people. Traditional treatments such as surgical treatment and systemic medication, often do not achieve the expected or optimal results, which leads to severe trauma and a variety of side effects. Therefore, there is an urgent need to develop novel therapeutic options to overcome these problems. Hydrogels are widely used in biomedical tissue repairing as a platform for loading drugs, proteins and stem cells. In recent years, smart-responsive hydrogels have achieved excellent results as novel drug delivery systems in the treatment of osteoarthritis. This review focuses on the recent advances of endogenous stimuli (including enzymes, pH, reactive oxygen species and temperature, etc.) responsive hydrogels and exogenous stimuli (including light, shear, ultrasound and magnetism, etc.) responsive hydrogels in osteoarthritis treatment. Finally, the current limitations of application and future prospects of smart responsive hydrogels are summarized.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11872905 | PMC |
http://dx.doi.org/10.3389/fbioe.2025.1539566 | DOI Listing |
ACS Appl Mater Interfaces
September 2025
Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Strain sensors have received considerable attention in personal healthcare due to their ability to monitor real-time human movement. However, the lack of chemical sensing capabilities in existing strain sensors limits their utility for continuous biometric monitoring. Although the development of dual wearable sensors capable of simultaneously monitoring human motion and biometric data presents significant challenges, the ability to fabricate these sensors with geometries tailored to individual users is highly desirable.
View Article and Find Full Text PDFAdv Mater
September 2025
Department of Neurosurgery, Qilu Hospital and Shandong Key Laboratory of Brain Health and Function Remodeling, Institute of Brain and Brain-Inspired Science, Jinan Microecological Biomedicine Shandong Laboratory, Cheeloo College of Medicine, Shandong University, 107 Wenhua Xi Road, Jinan, Shandong,
Innate immunity is crucial in orchestrating the brain immune response, however, glioblastoma multiforme (GBM) has evolved sophisticated mechanisms to evade innate immune surveillance, posing significant challenges for current immunotherapies. Here, a therapeutic strategy is reported that aims at reactivating innate immune responses in GBM via targeted induction of mitochondrial stress, thereby enhancing tumor immunogenicity. Specifically, innate immune-stimulating nanoparticles (INSTNA) are developed, encapsulating positively charged iridium-based complexes (Ir-mito) and small interfering RNA against Methylation-Controlled J protein (si-MCJ) to attenuate mitochondrial respiration.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2025
Department of Bioengineering, Yildiz Technical University, Istanbul, 34722, Turkey.
Conductive nanocomposite hydrogels (CNHs) represent a promising tool in neural tissue engineering, offering tailored electroactive microenvironments to address the complex challenges of neural repair. This systematic scoping review, conducted in accordance with PRISMA-ScR guidelines, synthesizes recent advancements in CNH design, functionality, and therapeutic efficacy for central and peripheral nervous system (CNS and PNS) applications. The analysis of 125 studies reveals a growing emphasis on multifunctional materials, with carbon-based nanomaterials (CNTs, graphene derivatives; 36.
View Article and Find Full Text PDFFront Bioeng Biotechnol
August 2025
Obesity and Metabolism Medicine-Engineering Integration Laboratory, Department of General Surgery, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China.
Salecan-based hydrogel (thereafter called Sal-hydrogel) dressings and gut microbiota have been associated with enhanced wound healing. However, the relationship between these two factors remains unclear. This study investigated the dynamic characteristics of the intestinal microbiota in relation to the Sal-hydrogel dressings and their role in promoting wound healing.
View Article and Find Full Text PDFACS Omega
September 2025
Florida A&M University-Florida State University College of Engineering, 2525 Pottsdamer Street, Tallahassee, Florida 32310-6046, United States.
This study presents a comprehensive analysis of the swelling behavior of poly-(ethylene glycol) (PEG)-based hydrogels of different molecular weights under various conditions. The rheological response and swelling kinetics of PEG hydrogels with molecular weight between cross-links ranging from 700 to 10 000 g/mol reveal the connection between architecture and material properties that are important for soft actuators. In addition to providing insight into the network structure and cross-linking density, rheological measurements find that the shear moduli of the networks increase with the degree of water swelling.
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