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Hydrogels are hydrophilic polymer materials that can swell but are insoluble in water. Hydrogels can be synthesized with synthetic or natural polymers, but natural polymers are preferred because they are similar to natural tissues, which can absorb a high water content, are biocompatible, and are biodegradable. The three-dimensional structure of the hydrogel affects its water insolubility and ability to maintain its shape. Cellulose hydrogels are preferred over other polymers because they are highly biocompatible, easily accessible, and affordable. Carboxymethyl cellulose sodium (CMCNa) is an example of a water-soluble cellulose derivative that can be synthesized using natural materials. A crosslinking agent is used to strengthen the properties of the hydrogel. Chemical crosslinking agent is used more often than physical crosslinking agent. In this review, article, different types of crosslinking agents are discussed based on synthetic and natural crosslinking agents. Hydrogels that utilize synthetic crosslinking agent have advantages, such as adjustable mechanical properties and easy control of the chemical composition. However, hydrogels that use natural crosslinking agent have better biocompatibility and less latent toxic effect.
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http://dx.doi.org/10.3390/gels8090568 | DOI Listing |
Biochem Biophys Res Commun
August 2025
Department of othopaedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China; International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Department of Orthopedics, Tianjin Me
Programmed cell death (PCD), which describes cell death regulated by a sequence of gene expression events, strongly impacts the prognosis of spinal cord injury (SCI). Nevertheless, the connections between the various PCD types and the cross-linked genes regulate that these types of cell death in SCI remain unclear. This study sought to identify and investigate the key genes connections that regulated PCD in SCI.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping, 102249, China.. Electronic address:
Hard carbon has emerged as the most widely studied and commercialized anode material for sodium-ion batteries (SIBs). However, improving the charge transfer kinetics within the plateau potential range of the hard carbon anode is crucial for the development of fast-charging SIBs. In this study, we prepared a novel composite material, ZAPA-1300, by uniformly mixing starch, asphalt, and zinc oxide (ZnO), followed by a two-step treatment process.
View Article and Find Full Text PDFJ Mater Chem B
September 2025
State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Oral Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
Infected wound treatment remains a critical challenge in clinical medicine. Although existing treatments, like local debridement, antimicrobial agents, and growth factor therapies, have demonstrated certain therapeutic effects, they primarily target only specific stages of wound healing. Moreover, the escalating issue of antibiotic resistance limits their efficacy.
View Article and Find Full Text PDFAnal Chem
September 2025
Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States.
Tires are complex polymeric materials composed of rubber elastomers (both natural and synthetic), fillers, steel wire, textiles, and a range of antioxidant and curing systems. These constituents are distributed differently among the various tire parts, which are classified based on their function and proximity to the rim. This study presents a rapid and sensitive approach for the characterization of tire components using mild thermal desorption/pyrolysis (TDPy) coupled to direct analysis in real-time mass spectrometry (DART-MS).
View Article and Find Full Text PDFJ Refract Surg
September 2025
From the Department of Ophthalmology at University of São Paulo, São Paulo, Brazil.
Purpose: To analyze stabilization results using various standard and accelerated corneal cross-linking (CXL) protocols in patients younger than 18 years.
Methods: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) 2020 guidelines. A bibliographic search was carried out based on PubMed and Scopus data, with the last being performed in December 2024.