The onset temperature of smoldering for calcium alginate fibers was determined across several densities. Experimental results and theoretical calculations proved that as the density of calcium alginate fibers increases, its smoldering occurrence temperature decreases. From the experiments, the thermal stability of calcium alginate fibers decreases with increasing density. It is concluded that the mass loss of calcium alginate fiber during smoldering varies significantly with density, with higher density exhibiting higher mass loss.
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http://dx.doi.org/10.1039/d4ra04871g | DOI Listing |
Regen Biomater
January 2025
Department of Orthopedics, National Children's Medical Center & Children's Hospital of Fudan University, Shanghai 201102, P. R. China.
The growth plate is crucial for skeletal growth in children, but research on repairing growth plate damage and restoring growth is limited. Here, a high-toughness adaptive dual-crosslinked hydrogel is designed to mimic the growth plate's structure, supporting regeneration and bone growth. Composed of aldehyde-modified bacterial cellulose (DBNC), methacrylated gelatin (GelMA) and sodium alginate (Alg), the hydrogel is engineered through ionic bonding and Schiff base reactions, creating a macroporous structure.
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February 2025
Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, M. Curie Skłodowska Sq. 2, 20-031 Lublin, Poland.
The selection of cross-linking techniques is essential for the development of the alginate matrix. In this study, we investigated porous sodium alginate matrices (ALG1@in, ALG3@in, ALG5@in) synthesized by internal gelation and further functionalized with polyphosphate (PP) at concentrations of 5% and 15% (ALG3@inPP5, ALG3@inPP15). Extensive characterizations were conducted, employing scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS) for morphological and compositional analysis, Fourier transform infrared spectroscopy (FTIR-ATR) for structural elucidation, thermogravimetric analysis (TGA-DTG) for thermal stability, and porosimetry (ASAP) for surface area and pore size evaluation.
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March 2025
Enzyme Science Programme (ESP), Department of Biochemistry, Microbiology and Bioinformatics, Rhodes University, Makhanda 6139, South Africa.
Obesity and type 2 diabetes mellitus (T2DM) are major health concerns worldwide, often managed with treatments that have significant limitations and side effects. This study examines the potential of sodium alginates, extracted from and , to inhibit digestive enzymes involved in managing these conditions. We chemically characterized the sodium alginates and confirmed their structural integrity using FTIR, NMR, and TGA.
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February 2025
Department of Biomedicine and Experimental Surgery, Faculty of Medicine, Medical University of Lodz, Narutowicza 60, 90-136 Lodz, Poland.
Neurodegenerative disorders present significant therapeutic challenges, particularly due to the complex nature of drug delivery to the central nervous system. This review investigates the applications of various biopolymers in neuroprotection and their potential role in treating neurodegeneration. We present a critical analysis of natural and synthetic biopolymers, focusing primarily on chitosan, fish collagen/gelatin, and alginate as key therapeutic agents.
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February 2025
State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
Polyphenols from extra virgin olive oil (EVOO) are bioactive compounds with significant antioxidant properties, but their instability necessitates effective encapsulation for enhanced stability and controlled release. This study prepared water-in-oil-in-water (W1/O/W2) emulsions to encapsulate EVOO using a two-step emulsification technique with varying concentrations of soy protein isolate (SPI) (0-10% /), maltodextrin (MD) (0-20% /), and propylene glycol alginate (PGA) (0-0.5% /).
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