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https://www.selleckchem.com/products/scutellarin.html Starch hydrogel is a biocompatible and biodegradable material. However, due to its poor mechanical properties and fragility, starch hydrogel has limited applications in the food and medicine industries. In this work, we prepared stretchable, compressible, and self-healing double-network (DN) hydrogels using hydroxypropyl starch (HPS) and sodium alginate (SA). By adjusting the amount of sodium alginate added, the DN hydrogels achieved adjustable mechanical properties. The storage modulus of the DN hydrogels with 1% SA increased by nearly 80 times compared with that of pure HPS hydrogels. When prepared in a water/glycerol binary mixed solvent, the DN hydrogels can maintain their gel properties at -30 ºC. These environmentally friendly and biocompatible hydrogels have broad application prospects in the fields of agriculture, food, and medicine.Phytoglycogen nanoparticles are highly branched polymers of anhydroglucose units (AGUs) produced as soft, compact nanoparticles by sweet corn. By combining results of dialysis, ellipsometry and gravimetric analysis experiments, we constructed a master plot of the osmotic pressure Π -concentration C data for phytoglycogen nanoparticles that spans the complete range ∼ 0% w/w less then C less then ∼ 100 % w/w. The distinctive shape of the ΠC curve for phytoglycogen differs significantly from that of dextran, a lightly branched polysaccharide also made up of AGUs but not in the form of particles, especially near concentrations corresponding to contact between the nanoparticles. By calculating the dependence of the osmotic pressure on the volume per particle, we determined the increase in the bulk modulus of the particles with decreasing particle volume due to removal of water from the particles upon compression. This approach allowed us to quantify the strong correlation between the mechanical and hydration properties of phytoglycogen nanoparticles.Herein, we report the preparatio

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