Introduction: The effects of the low dose of ionizing radiation are not thoroughly evident due to an unavoidable increase of occupational exposure and the widespread application of ionizing radiation in medical and industrial fields. The aim of this study was to investigate immune system responses following the low doses of ionizing radiation. Materia...

Hydrogels were prepared from poly(γ-glutamic acid) (PGA) solution by γ-irradiation of 90 kGy and 170 kGy. The hydrogels were more cross-linked with a higher dosage γ-irradiation and completely hydrolyzed at 85 oC within 4 hours resulting in homogeneous solution. NMR techniques were employed to clarify chemical bond formation and scission involved during γ-irradiation and hydrolysis. Characteriz...

Abstract PLA and its nanocomposite containing 3% chitosan nanoparticles (PLA-3CsNP) were studied to see how γ -irradiation affected their characteristics. Different doses of applied the investigated materials under inquiry (5–40 kGy) using 60 Co at ambient conditions. The irradiation characterized by FT-IR, GPC, mechanical tensile test, DSC, XRD, TGA in solid chloroform solutions. molecular wei...

We investigate the effects of γ irradiation on bismuth active centres (BACs) and related photoluminescence properties of bismuth/erbium co-doped silica fibre (BEDF), [Si] ~28, [Ge] ~1.60, [Al] ~0.10, [Er] ~ <0.10 and [Bi] ~0.10 atom%, fabricated by in-situ solution doping and Modified Chemical Vapor Deposition (MCVD). The samples were irradiated at 1 kGy, 5 kGy, 15 kGy, 30 kGy and 50 kGy doses,...

In this research, γ-Al2O3 nanoparticles (NPs) were synthesized by using the sol–gel process. The photon attenuation properties of these NPs obtained measuring linear and mass coefficients (μl, μm) at different energies. addition, theoretical values μm for micro-particles calculated WinXCom computer program compared with experimental γ-Al2O3. Furthermore, in order to evaluate impact γ-irradiatio...

Ionizing radiation can induce cellular oxidative stress through the generation of reactive oxygen species, resulting in cell damage and cell death. The aim of this study was to determine whether the antioxidant effects of the flavonoid fisetin (3,7,3',4'-tetrahydroxyflavone) included the radioprotection of cells exposed to γ-irradiation. Fisetin reduced the levels of intracellular reactive oxyg...

Skin inflammation is caused by excessive production of cytokines and chemokines in response to an external stimulus, such as radiation, but the mechanisms involved are not completely understood. Here, we report a novel mechanism of γ-irradiation-induced IL-6 production mediated by P2Y11 receptors in epidermal cells. After irradiation of HaCaT cells derived from human epidermal keratinocytes wit...

This in vitro study evaluated the detrimental effect of acute gamma (γ)-irradiation on rat immature hippocampal neurons. Rat immature hippocampal neurons (0.5 day in vitro) were irradiated with 0~4 Gy γ-rays. Cytotoxicity was analyzed using a lactate dehydrogenase release assay at 24 h after γ-irradiation. Radiation-induced cytotoxicity in immature hippocampal neurons increased in a dose-depend...

Cd1-xFexS (x = 0.03) solid solutions were synthesized and thin films obtained on their base by molecular beam condensation method. It was studied the effect of γ- irradiation surface morphology, growth properties crystal structure films. The characteristics exposed to γ-rays at doses 50, 100 150 kGy from 60Co source characterized XRD, SEM, EDX methods. XRD analysis showed that orientation plane...

BACKGROUND The molecular mechanisms of DNA repair following chronic medium-dose-rate (MDR) γ-ray-induced damage remain largely unknown. METHODOLOGY/PRINCIPAL FINDINGS We used a cell function imager to quantitatively measure the fluorescence intensity of γ-H2A.X foci in MDR (0.015 Gy/h and 0.06 Gy/h) or high-dose-rate (HDR) (54 Gy/h) γ-ray irradiated embryonic fibroblasts derived from DNA-depe...