Radiation Synthesis of Selenium Nanoparticles Capped with -Glucan and Its Immunostimulant Activity in Cytoxan-Induced Immunosuppressed Mice.

Selenium nanoparticles (SeNPs) with diameters from 64.8 to 110.1 nm were successfully synthesized by γ-irradiation of solutions containing Se and water-soluble yeast -glucan.

Radiation Degradation of -Glucan with a Potential for Reduction of Lipids and Glucose in the Blood of Mice.

Water-soluble and low molecular weight (Mw) -glucans were successfully prepared by γ-irradiation of water-insoluble yeast -glucans. The radiation dose used for the degradation of yeast -glucan was remarkably reduced by increasing the pH of the sample or combining with hydrogen peroxide treatment. Radiation-degraded -glucans with molecular weights in the range of 11-48 kDa reduced the total cholesterol, triglyceride, low density lipoprotein (LDL) cholesterol, and glucose levels in the blood of administered mice.

Metal-Semiconductor Phase-Transition in WSe Te Monolayer.

A metal-semiconductor phase transition in a ternary transition metal dichalcogenide (TMD) monolayer is achieved by alloying Te into WSe (WSe Te , where x = 0%-100%). The optical bandgaps of the WSe Te monolayer can be tuned from 1.67 to 1.

Radiation degradation of (1→3)-β-d-glucan from yeast with a potential application as a plant growth promoter.

The (1→3)-β-d-glucan extracted from the yeast cell wall was irradiated by γ-rays from a Co-60 source at dose range of 100-300kGy in a swelling condition of 10, 15 and 20% for degradation. The water-soluble contents of irradiated samples obtained by 10% (1→3)-β-d-glucan mixture increased from 25.89 to 66.

Study on antibacterial activity of silver nanoparticles synthesized by gamma irradiation method using different stabilizers.

Colloidal solutions of silver nanoparticles (AgNPs) were synthesized by gamma Co-60 irradiation using different stabilizers, namely polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA), alginate, and sericin. The particle size measured from TEM images was 4.3, 6.

Preparation of oligoalginate plant growth promoter by γ irradiation of alginate solution containing hydrogen peroxide.

Degraded alginate compounds with molecular weights of 7-26, 40-77, or 11-26 kDa were obtained by γ irradiation, hydrogen peroxide (5% H(2)O(2)) treatment, or a combination treatment involving ionizing radiation and H(2)O(2), respectively. The 14 kDa oligoalginate, prepared by the combined method, promoted the growth of mustard greens and lettuce at an optimal concentration of 75 mg/L. The growth promotion effects of the oligoalginate prepared by γ irradiation in the presence of H(2)O(2) were statistically equivalent to those of the oligoalginate prepared by γ irradiation only.