Preparation, characteristics and feeble induced-apoptosis performance of non-dialysis requiring selenium nanoparticles@chitosan

Herein, we discuss the facile and general protocol to construct monodisperse chitosan-coated selenium nanoparticles ([email protected]) without the need for dialysis in wet-chemical system and also investigate the toxicity of [email protected] on enterocyte cells. The crystalline structure, morphology, and composition of the obtained product were examined by XRD, SEM-EDX, TEM, XPS and FT-IR, respectively, which indicates uniform and strong stability performance of the non-dialysis requiring [email protected] Intestinal porcine epithelial cells (IPEC-J2) were conducted to compare the cytotoxicity of [email protected] and selenite at desired concentrations (ranging from 0.625 to 100 μM) for 4, 8, 12, and 24 h. The cytotoxicity study reveals that [email protected] exhibited lower cytotoxicity than selenite in IPEC-J2 cells. From the further cell apoptosis examination, high concentration of [email protected] (100 μM), compared with the selenite, did not affect related protein expressions in JNK/p38 MAPK signaling pathway, which is critical in predisposing mammalian cells to apoptosis. All the physio-chemical characterization and biological determination demonstrated that the non-dialysis requiring [email protected] possesses the potentials to serve as safe and effective pharmaceutical or nutritional application.

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