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| 1 | Effect of Gd3+-,Pr3+-or Sm3+-substituted cobalt-zinc ferrite on photodegradation of methyl orange and cytotoxicity tests显示文摘Gd3+-,Pr3+-or Sm3+-doped Co-Zn(Co0.5Zn0.5Fe2 O4)magnetic ferrites(i.e.,Co0.5Zn0.5Gd0.1Fe1.9O4,Co0.5Zn0.5Pr0.1Fe1.9O4 and Co0.5Zn0.5Sm0.1Fe1.9O4)were prepared using a facile sol-gel approach,and the structure,surface morphology and chemical composition of the products were studied by means of scanning electron microscopy(SEM),energy dispersive X-ray analysis(EDX),X-ray diffraction(XRD),UVvisible diffuse reflectance spectroscopy(DRS),photoluminescence(PL)spectroscopy,Fourier transform infrared spectroscopy(FT-IR)and vibrating sample magnetometer(VSM)spectroscopy.XRD patterns show the Co-Zn product is composed of cubic spinel phases with few impurities or secondary phases,and the average crystallite sizes of the samples are determined to be approximately^51—80,~99—181,~68—103 and^83—133 nm.Also the coercivity and remnant and saturation magnetizations,evaluated by vibrating sample magnetometer(VSM),are found to increase linearly with the incorporation of Gd3+,Pr3+and Sm3+in the product formulation.The CO1-xZnxFe2-yRyO4 photocatalyst sample is found to display a red shift in its absorption,and exhibits outstanding photocatalytic effects in the degradation of MO under ultraviolet(UV)light.This is attributed to the reduction of the band gap of cobalt-zinc ferrite due to the presence of rare earth ions.Further in vitro evaluations of the cytotoxic effects of the synthesized nanoparticles were performed on a HeLa cell line. | Seyed Mahdi Peymani-Motlagh Nadia Moeinian Mojtaba Rostami Mahdi Fasihi-Ramandi Ali Sobhani-Nasab Mehdi Rahimi-Nasrabadi Mohammad Eghbali-Arani Mohammad Reza Ganjali Teofil Jesionowski Hermann Ehrlich Mohammad Ali Karimi Narges Ajami | 2019 | Journal of Rare Earths2019,37,12: | 3 |
| 2 | Focus-tunable microscope for imaging small neuronal processes in freely moving animals显示文摘Miniature single-photon microscopes have been widely used to image neuronal assemblies in the brain of freely moving animals over the last decade. However,these systems have important limitations for imaging in-depth fine neuronal structures. We present a subcellular imaging single-photon device that uses an electrically tunable liquid crystal lens to enable a motion-free depth scan in the search of such structures. Our miniaturized microscope is compact (10 mm×17 mm×12 mm) and lightweight (≈1.4 g),with a fast acquisition rate (30–50 frames per second),high magnification (8.7×),and high resolution (1.4μm) that allow imaging of calcium activity of fine neuronal processes in deep brain regions during a wide range of behavioral tasks of freely moving mice. | ARUTYUN BAGRAMYAN LOIC TABOURIN ALI RASTQAR NARGES KARIMI FRéDéRIC BRETZNER TIGRAN GALSTIAN | 2021 | Photonics Research2021,9,7: | 2 |
| 3 | Cu/SiO_2:A recyclable catalyst for the synthesis of octahydroquinazolinone显示文摘A simple and one-pot method for the synthesis of octahydroquinazolinone is reported.Cu/SiO_2 in refluxing ethanol catalyzes this three-component condensation reaction to afford the corresponding quinazolinones in good yields. | Majid M.Heravi Narges Karimi Hoda Hamidi Hossein A.Oskooie | 2013 | Chinese Chemical Letters2013,24,2: | 2 |
| 4 | KAl(SO_4)_2·12H_2O catalyzed efficient synthesis of 3,4,6-trisubstituted 2-pyridone in water显示文摘为面对 KAl (SO4 ) 采用 cyanoacetamide 和 acetylacetone 的冷凝作用反应的准备 3,4,6-trisubstituted 2-pyridone 的一个有效绿协议 2 ?? 嵤祰楲業楤敮搠牥癩瑡癩獥挠湯慴湩湩 ???? 桴慩楤穡汯? 獩搠獥牣扩摥浩?? | Majid M.Heravi Hossein A.Oskooie Narges Karimi Hoda Hamidi | 2011 | Chinese Chemical Letters2011,22,9: | 2 |
| 5 | On Water: Bronsted Acidic Ionic Liquid [(CH2)4SO3HMIM][HSO4] Catalysed Synthesis of Oxindoles Derivatives显示文摘 | Karimi Narges Oskooi Hooesin Heravi Majid Saeedi Mina Zakeri Masoumeh Tavakoli Niloofar | 2011 | Chinese Journal of Chemistry2011,29,2: | 2 |
| 6 | The effect of glycyrrhizin on maturation and T cell stimulating activity of dendritic cells显示文摘 | Narges Bordbar Mohammad Hossein Karimi Zahra Amirghofran | 2012 | Cellular Immunology2012,,1: | 1 |
| 7 | One-pot Green Procedure for Synthesis of Tetrahydrobenzo[a]- xanthene-11-one Catalyzed by Bronsted Ionic Liquids under Solvent-free Conditions显示文摘 | Zakeri, Masoumeh Heravi, Majid M. Saeedi, Mina Karimi, Narges Oskooie, Hossein A. Tavakoli-Hoseini, Niloofar | 2011 | Chinese Journal of Chemistry2011,29,7: | 0 |