Preparation, characterization and cytotoxic activity of selenium nanoparticles stabilized with a heteropolysaccharide isolated from Sanghuangporus vaninii residue

Selenium nanoparticles (SeNPs) possess unique features with excellent bioavailability and bioactivity, but the poor stability limits its application. A combination of polysaccharides and SeNPs is an effective strategy to overcome the limitation. Herein, a heteropolysaccharide (SVL-3) with an average molecular weight of 2.428 × 10