نتایج جستجو برای: kinetic activity of nanoparticles

تعداد نتایج: 21256783  

It has been shown that the photocatalytic activity of doped semiconductor with some nonmetals is higher than a pure semiconductor. Hence, with an attempt to achieve higher photocatalytic activity, doped ZnO with C, N, and S was prepared by a sedimentary process and used for the photocatalytic degradation of Fluocinolone Acetonidin as a drug in aqueous solutions.  ...

ژورنال: سنجش و ایمنی پرتو 2015

Nanoparticles of Yb-doped SrF2 were synthesized by co-precipitation method. The formation of nanostructures was confirmed by X-ray diffraction (XRD) pattern. The particle size of about 46 nm was calculated from XRD data. The shape and size of SrF2:Yb nanoparticles were also observed by scanning electron microscope (SEM). The computerized glow curve deconvolution (CGCD) method was employed to det...

Journal: :iranian journal of catalysis 0
mohammad bakherad school of chemistry, shahrood university of technology, shahrood 3619995161, iran rahele doosti school of chemistry, shahrood university of technology, shahrood 3619995161, iran mahdi mirzaee school of chemistry, shahrood university of technology, shahrood 3619995161, iran khosrow jadidi department of chemistry, shahid beheshti university, tehran 1983963113, iran.

the reaction of 3-chloropropyl boehmite nanoparticles with caffeine and sulfuric acid afforded bnps-3-propyl-imidazolopyridinium hydrogen sulfate [bnps-caff]hso4 as a new bnps-supported ionic liquid (il) catalyst. [bnps-caff]hso4 proved to be an efficient heterogeneous catalyst for the synthesis of pyrazolopyranopyrimidines via a one-pot four-component reaction of hydrazine hydrate, ethyl aceto...

Journal: :iranian journal of basic medical sciences 0
bahman khameneh department of food and drug control, mashhad university of medical sciences, mashhad, iran vahid halimi school of pharmacy, mashhad university of medical sciences, mashhad, iran mahmoud reza jaafari biotechnology research center, school of pharmacy, mashhad university of medical sciences, mashhad, iran shiva golmohammadzadeh nanotechnology research center, school of pharmacy, mashhad university of medical sciences, mashhad, iran

objective(s): in the current study, sunscreen and moisturizing properties of solid lipid nanoparticle (sln)-safranal formulations were evaluated. materials and methods:series of sln were prepared using glyceryl monostearate, tween 80 and different amounts of safranal by high shear homogenization, and ultrasound and high-pressure homogenization (hph) methods. sln formulations were characterized ...

Journal: :international journal of nanoscience and nanotechnology 2015
e. ayoman g. hossini n. haghighi

in this research, cuo spherical-like nanoparticles were synthesized using the planetary ball mill method. the structure, particle size and morphology of the resulting cuo nanoparticles were characterized by xrd (x-ray diffraction), sem (scanning electron microscopy) and saxs (small-angle x-ray scattering) methods. the results of this investigation showed that the smallest particles which were o...

Journal: :nanomedicine journal 0
k. khanra department of biotechnology, panskura banamali college; east midnapore; west bengal; india s. panja department of biotechnology, panskura banamali college; east midnapore; west bengal; india i. choudhuri department of biotechnology, panskura banamali college; east midnapore; west bengal; india a. chakraborty radiation biology division,ugc-dae csr, kolkata centre, sector iii, lb-8bidhan nagar n. bhattacharyya department of biotechnology, panskura banamali college; east midnapore; west bengal; india

objective(s): for the development of reliable, ecofriendly, less expensive process for the synthesis of silver nanoparticles and to evaluate the bactericidal, and cytotoxicity properties of silver nanoparticles synthesized from root extract of croton bonplandianum, baill. materials and methods: the synthesis of silver nanoparticles by plant part of croton bonplandianum was carried out.  the for...

Journal: :international journal of nano dimension 0
g. narasimha applied microbiology laboratory, department of virology, sri venkateswara university, tirupati- 517502 andhra pradesh, india. a. janardhan applied microbiology laboratory, department of virology, sri venkateswara university, tirupati- 517502 andhra pradesh, india. m. alzohairy department of medical laboratories, college of applied medical sciences, qassim university, qassim, po box 6699, kingdom of saudi arabia. h. khadri department of medical laboratories, college of applied medical sciences, qassim university, qassim, po box 6699, kingdom of saudi arabia. k. mallikarjuna department of physics, sri venkateswara university, tirupati-517502 andhra pradesh, india.

the development of the eco friendly procedures makes nanoparticles as the rapidly growing field of nanotechnology. amongst, the silver nanoparticles have become prominent in the field of medicine to their peculiar antimicrobial properties. in the present study we suggest an eco friendly procedure of extracellular synthesis of silver nanoparticles with an average sizes of 5-50nm using an actinom...

Journal: :journal of paramedical sciences 0
zahra aghajani kalaki department of microbiology, islamic azad university, varamin-pishva branch, iran raheleh safaeijavan department of biochemistry and biophysics, islamic azad university, varamin-pishva branch, iran masumeh mahdavi ortakand department of biology, islamic azad university, varamin-pishva branch, iran

in the present study, a simple, fast and eco-friendly biosynthesis of silver nanoparticles (agnps) using   mentha langifolia leaf extract as the reducing agent was investigated. nanoparticles forming were indicated by the color changes in solution and were confirmed by uv-vis spectrum, ft-ir analysis and scanning electron microscopic (sem) micrograph. the average particle size of produced agnps...

Recently, the synthesis of silver nanoparticles has become an important subject in the bionanotechnology field. Many different chemical and physical methods could be used for silver nanoparticles synthesis, but they are limited due to the usage of toxic chemicals and the production of dangerous by-products. However, the usage of plant extract for silver nanoparticles synthesis is a green single...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

antibacterial activity of fe3o4 nanoparticles was investigated in three microorganisms including p. aeruginosa, e. coli and staphylococcus aureus. fe3o4 nanoparticles were synthesized by chemical precipitation method (20 nm). the fe3o4 nanoparticles antibacterial effect against pseudomonas aeruginosa, escherichia coli and staphylococcus aureus were studied by the culture method. first of all, e...

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