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A polyelectrolyte complex (PEC) composed of chitosan (CS) and phosphorylated chitosan (PCS) was used to encapsulate a calcium phosphate by a biomimetic method. An acidic CS (polycation) solution containing calcium and phosphate ions (Ca 2+ : 6 mM, Ca/P=1.67) was added into a PCS (polyanion) solution leading to the formation of a polyelectrolyte complex (PEC) with nanoscopic carbonate-containing,...
Multilayer films based on Keggin-type polyoxometalate (POM) α-[SiW 12 O 40 ] 4− (α-SiW 12 ), α-[PMo 12 O 40 ] 3− (α-PMo 12 ) and cationic chitosan have been fabricated in aqueous solution via the layer-by-layer self-assembly technique (LBL). The resulting films were characterized by UV–Vis spectra, X-ray photoelectron spectra (XPS), atomic...
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