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Synthesis and antidiabetic properties of chitosan-stabilized selenium nanoparticles.
Colloids and Surfaces. B, Biointerfaces 2018 October 2
Chitosan-stabilized selenium nanoparticles (CTS-SeNPs) were prepared through the reduction of selenite acid with ascorbic acid. The optimal synthesis conditions of CTS-SeNPs were obtained by orthogonal experiments. Besides, the size, morphology and stability of CTS-SeNPs were characterized by transmission electron microscopy (TEM), scanning electron microscope (SEM) and dynamic light scattering (DLS). The results showed that, the CTS-SeNPs with diameter of about 54 nm could be obtained under the optimal conditions (temperature of 25 °C, reaction time of 2 h, Vc concentration of 0.04 M and the CTS concentration of 1.0 mg/mL). CTS-SeNPs were uniform spherical and could be stable for approximately 60 days at 4 °C. Further, the antidiabetic activities of CTS-SeNPs in streptozotocin (STZ)-induced diabetic mice were investigated as well. The results revealed that CTS-SeNPs at a dose of 2.0 mg Se/kg bw exhibited higher antidiabetic activity than other doses of CTS-SeNPs and other selenium compounds with the same selenium content.
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