Abstract

The nanoSe0-polyphenol complexes with a 3:1 polyphenol/nanoSe0 molar ratio were prepared by colloidal selenium nanoparticles (nanoSe0) modified with gallic acid (GA), propyl gallate (PG), and pyrogallic acid (PA), which were spherical with average diameter about 38–77 nm. On this basis, we studied the effect of nanoSe0-polyphenol on the CaC2O4 crystallization and also elaborated the modulation mechanism, which were compared with those for each polyphenol individually. NanoSe0-GA and nanoSe0-PA were easy to induce the formation of calcium oxalate dihydrate (COD) crystals, while nanoSe0-PG induced the formation of quasi-rectangular calcium oxalate monohydrate (COM), multilayered calcium oxalate trihydrate (COT) crystals, and an amount of COD crystals in a dose-dependent fashion by nanoSe0-PG. The strong effect of nanoSe0-polyphenol on the formation of COD and COT crystals could be attributed to electrostatic interaction between nanoSe0-polyphenol and CaC2O4 crystals. The results obtained in the polyphenol s...

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