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Hyaluronic acid (HA) is a polymer with unique biological properties that has gained in interest over the years, with applications in pharmaceutical, cosmetic, and biomedical fields; however, its widespread use has been limited by its short half-life. Therefore, a new cross-linked hyaluronic acid was designed and characterized using a natural and safe cross-linking agent, such as arginine methyl ester, which provided improved resistance to enzymatic action, as compared to the corresponding linear polymer. The antibacterial profile of the new derivative was shown to be effective against and , making it a promising candidate for use in cosmetic formulations and skin applications. Its effect on , combined with its excellent tolerability profile on lung cells, also makes this new product suitable for applications involving the respiratory tract.
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http://dx.doi.org/10.3390/ph16030431 | DOI Listing |
Adv Healthc Mater
September 2025
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China.
Osteoarthritis (OA) is a common degenerative joint disease, and early diagnosis and effective treatment are essential for managing its progression. This study focuses on the development of a novel drug delivery system using aggregation-induced emission (AIE) probe for enhanced fluorescence imaging and targeted therapy in OA. TPE-S-BTD, an AIE probe, is synthesized and characterized for its photophysical properties, demonstrating significant aggregation-induced fluorescence enhancement.
View Article and Find Full Text PDFJ Biomed Mater Res B Appl Biomater
September 2025
Contipro a.s., Czech Republic.
Drug delivery to the central nervous system (CNS) is primarily hindered by the blood-brain barrier (BBB). To address this, mucoadhesive formulations have been designed to prolong residence time at the application site. In this study, we comprehensively characterized the physicochemical and mucoadhesive properties of hyaluronic acid tyramine (HATA) photocrosslinked hydrogels using rheological methods, nanoindentation, contact angle goniometry, and advanced confocal microscopy.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, 400019, India. Electronic address:
Polysaccharide copolymers Conjuates have surfaced as a versatile foundation in the development of advanced smart drug delivery systems, owing to their inherent biocompatibility, biodegradability, and capacity for chemical modification. This review brings into focus the recent advances in co-polymeric drug delivery systems based on naturally occurring polysaccharides like chitosan, alginate, dextran, hyaluronic acid, pullulan, guar gum, xanthan gum, agarose, gellan gum, and starch. Their structural malleability and functionalization capabilities are emphasized to engineer therapeutic payload stability, bioavailability, and controlled release.
View Article and Find Full Text PDFJ Control Release
September 2025
Department of Pharmaceutics, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou City, Zhejiang Province 325035, China. Electronic address:
Gut barrier loss exacerbated gut microbiota dysbiosis by permitting pathogenic blooms, while gut microbiota dysbiosis caused the development of gut mucosal wounds by reducing mucus and breaking down epithelial tight junction. Current therapies combating colitis often fail to address both gut barrier dysfunction and microbial imbalance. Herein, inspired by natural gut mucus, a dual-crosslinked hydrogel (HSMP-LA) composed of thiol/maleimide-modified hyaluronic acid together with co-loading of antimicrobial ε-polylysine (ε-PL) and larazotide acetate (LA) had been developed as an injectable artificial gut mucus to simultaneously restore barrier integrity and modulate gut microbiota.
View Article and Find Full Text PDFJ Colloid Interface Sci
September 2025
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China; Henan International Joint Laboratory of Smart Molecules and Identification and Diagnostic Functions, Henan Normal University, Xinxiang, Henan 453007, China. Electronic address:
Carbon monoxide (CO) has demonstrated significant potential in tumor therapy. However, the uncontrolled release of CO and single-modality therapy often fail to achieve the desired therapeutic outcomes. To address the above deficiencies, mesoporous silica nanoparticles containing tetrasulfide bonds (TMSNs) were constructed as intelligent nanocarriers to co-deliver a mitochondria-targeting photosensitizer (Au-TPP) and a photodynamically activated CO-releasing molecule (FeCO), enabling the synergistic combination of photodynamic therapy (PDT) and CO therapy.
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