this study was performed to investigate the effect of ag+ as an elicitor on the activity of antioxidant enzymes, content of h2o2, accumulation of total tocopherol and antioxidant activity in hairy root cultures of silybum marianum (l.) gaertn. the hairy roots were treated with 2 mm ag+. the treated and non-treated hairy roots were harvested in the same time and data on h2o2 content, dpph, tocop...

objective: development of resistance against many of the commonly used antibiotics is an impetus for further efforts to search for new antimicrobial agents. the aim of the study was determined as antibacterial activity of silver nanoparticles produced by plantago ovata seed extract against pseudomonas aeruginosa. methods: all 30 strains of p. aeruginosa wereisolated from isolates of the urinary...

in this study, silver nanoparticles were synthesized by chemical reduction method at different concentrations of ag colloid in the range of 500-16000 ppm. nanoparticles were deposited by spin coating method on pre-etched glass and si substrates. structural, optical and electrical properties of the samples were studied using scanning electron microscopy equipped with edax, uv-vis spectrophotomet...

Recently the graphene/SiC interface has emerged as a versatile platform for epitaxy of otherwise unstable, monoelemental, two-dimensional (2D) layers via intercalation. Intrinsically capped into van der Waals heterostructure with overhead graphene, they compose new class quantum materials striking properties contrasting their parent bulk crystals. Intercalated silver presents prototypical examp...

We consider and study Blaschke inductive limit algebras A(b), defined as inductive limits of disc algebras A(D) linked by a sequence b = {Bk}k=1 of finite Blaschke products. It is well known that big G-disc algebras AG over compact abelian groups G with ordered duals Γ = Ĝ ⊂Q can be expressed as Blaschke inductive limit algebras. Any Blaschke inductive limit algebraA(b) is a maximal and Dirichl...

The Rashba effect of surface alloys semimetallic bismuth (Bi) is strongly related to its specific structural properties. initial growth behaviors Bi atoms on Ag(111) substrate and Au(111) are systematically investigated by combining scanning tunneling microscopy (STM) density flooding theory (DFT) in this paper. Continuous Ag<sub>2</sub>Bi alloy films formed preferentially at the st...

– We report on the evolution of the Raman-active Ag phonon modes in the chargeordered manganite Pr0.63Ca0.37MnO3 as a function of temperature from 300K to 25K. Our studies reveal that the linewidths of the Ag(2) and Ag(4) phonons increase as temperature decreases. This anomalous temperature dependence of phonon lineshapes, seen for the first time in charge ordered manganites, can be quantitativ...

Strain induced by a magnetic field is common phenomenon for ferromagnets, but few antiferromagnets show large strain field. On the basis of linear measurements sintered samples triangular antiferromagnet ACrS2 (A = Cu, Ag, and Au) in fields up to 9 T, AgCrS2 sample was found strain, yielding volume change over 700 ppm, which one largest changes measured date an antiferromagnet. This appeared on...