نتایج جستجو برای: ag and m1
تعداد نتایج: 16836449 فیلتر نتایج به سال:
Introduction: Because of advancement in nanotechnology, the use of Ag Nanoparticles (NPs) was increased in a wide range of area. Studies that were done in recent years demonstrated that Ag NPs can induce cytotoxicity in cells. One of the parts of UV radiation of sun is UVC (200 – 280 nm) that has antimicrobial effect. Since the effect of simultaneous use of NPs and UVC are sti...
objective(s): metal nanoparticles (nps) offer a wide variety of potential applications in pharmaceutical sciences due to the unique advances in nanotechnology research. in this work, bimetal ag-au alloy nps were prepared and their combinations with other antibiotics were tested against staphylococcus aureus. materials and methods: firstly, ag-au alloy nps with au/ag molar ratio of 1:1 was f...
In this work the Origanum vulgare leaf extract was used to green synthesis of Ag nanoparticles (NPs) supported on Hazelnut shell as an environmentally benign support. The Ag NPs/Hazelnut shell as an effective catalyst was prepared through reduction of Ag+ ions using Origanum vulgare leaf extract as the reducing and capping agent and Ag NPs immobilization on Hazelnut shell surface in ...
Abstract Introduction: Diabetes mellitus accompanies with disturbances in learning, memory, and cognitive skills in the human society and experimental animals. Considering the beneficial antidiabetic potential of Apium graveolens (AG ), this research study was conducted to evaluate the effect of chronic i.p. administration of AG on learning and memory in diabetic rats using passive avoidanc...
Seven majorly consumed brands of several teas (A1, A2, M1, M2, S, D, and C teas) were selected for the present study. In this study, the heavy metal contents including copper (Cu), cadmium (Cd), arsenic (As), and lead (Pb) were assessed in the black tea samples consumed in Iran. The content of the heavy metals in the samples was analyzed using atomic absorption spectroscopy (AAS). Notably, the ...
Microwave absorbing property of composites containing Ag nanoparticles filled multiwalled carbon nanotube buckypaper (Ag-BP) has been investigated. Buckypaper doped with silver was prepared by direct dispersion and filtration method. From the low temperature resistivity measurement it was found that increasing doping level decreases the electrical conductivity of the buckypaper. 30 wt. % and 40...
منطقه مورد مطالعه در جنوب شرق رشته کوه بزقوش مابین مختصات 764000-756000 s38 (شمالی) و 4191000-4178000 (شرقی) (برمبنای utm) قرار دارد. بر مبنای تقسیم بندی زمین شناسی پوسته ایران، منطقه مورد مطالعه در زون البرز-آذربایجان قرار می گیرد. در جنوب شرقی بزقوش سنگ های گوناگون دگرگونی و توده های گرانیتی مرتبط با آنها وجود دارد. مهم ترین این سنگ ها شامل دو توده گرانیتی از نوع s (در روستاهای نی باغی و سیاه...
The nanocomposite consists of the Ag as a core and Pt as shell on the surface of graphene nanosheets (Ag/Pt-G) was synthesized with a simple method and used as a novel electrochemical platform for an efficient catalyst for oxidation of the ethanol, methanol and formic acid. The morphology and electrochemical properties of Ag/Pt-G nanocomposite were investigated by TEM, X-ray diffraction, and vo...
Background and Objectives: Aflatoxin M1 is one the most important mycotoxin contaminants of milks. Various methods have been described to detect aflatoxins in milks, including chromatography, enzyme-linked immunosorbent assay and colorimetry. Regarding high sensitivity of electrochemical sensor based methods, the aim of the present study was to fabricate an accurate sensitive voltametric biosen...
It is crucial to discover lead-free materials with ultrahigh recoverable energy density ([Formula: see text]) that can be employed in future pulse power capacitors. In this work, a high [Formula: text] of 4.51 J/cm 3 was successfully obtained Nd-doped AgNb[Formula: text]Ta[Formula: text]O antiferroelectric ceramics at an applied electric field 290 kV/cm. discovered Nd doping paired Nb-site vaca...
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