Nahid Rasouli
Payame Noor University
[ 1 ] - The zinc chromium ferrite magnetic nanoparticles ZnCrFeO4: An efficient catalyst for acetylation of alcohols, phenols and amines under solvent-free conditions
In this study, the zinc chromium ferrite magnetic nanoparticles ZnCrFeO4 are synthesized via sol-gel method and characterized by X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The XRD analysis showed that ZnCrFeO4 has single-phase cubic structure. The synthesized ZnCrFeO4 has been used as an efficient catalyst for acetyl...
[ 2 ] - A spectroscopic study on Calf thymus DNA binding properties of nickel (II) complex with imidazole derivatives of 1,10-phenanthroline ligand
In this study, a nickel (II) complex with 1,10-phenanthroline based ligand, [Ni(FIP)2](OAC)2 (1) with FIP = 2-(Furan-2-yl)-1H-Imidazole[4,5-f][1,10] phenanthroline as ligand was synthesized and characterized by spectroscopic methods and elemental analysis. The interaction of [Ni(FIP)2](OAC)2 (1) with calf-thymus DNA (ct-DNA) was studied by UV-vis absorption, fluorescence spectroscopies and visc...
[ 3 ] - بررسی ویژگی جذبی جاذب طبیعی خاک رس سپیولایت اصلاح شده مغناطیسی (Ni0.5Zn0.5Fe2O4/Sepiolite) در حذف رنگ کاتیونی متیلن بلو از محلول آبی
جذب سطحی توسط جاذب های طبیعی مغناطیسی به دلیل ارزانی، دسترسی زیاد ، نداشتن خطرات زیست محیطی و قابلت جداسازی از محیط توسط میدان مغناطیسی روشی مناسب برای حذف رنگ از پساب های صنعتی می باشد. در این تحقیق خاک رس سپیولایت اصلاح یافته مغناطیسی (Ni0.5Zn0.5Fe2O4/Sepiolite) با استفاده از خاک رس طبیعی سپیولایت و نمکهای نیترات فلزات آهن، روی و نیکل با روشی ساده و سریع سنتز گردید. خصوصیات ساختاری جاذب مغناط...
[ 4 ] - Spectroscopic, Thermodynamic and Molecular Docking Studies on Interaction of Toxic Azo Dye with Bovine Serum Albumin
Investigation on interaction of azo dyes with bovine serum albumin as carrier protein will be important in the field of toxicology because of distribution and transportation of dyes in blood. In this regard, the interaction between the azo dye, trisodium (4E)-3-oxo-4-[(4- sulfonato-1- naphthyl) hydrazono] naphthalene-2,7-disulfonate (C20H11N2Na3O10S3), known as Amaranth and bovine serum albumin...
[ 5 ] - Influence of a Novel Magnetic Recoverable Support on Kinetic, Stability and Activity of Beta-amylase Enzyme
In this paper, covalent immobilization of beta amylase enzyme on the surface of modified magnetic nano particles (ZnFe2O4@SiO2-NH2) is reported. For doing so, at first, the magnetic nanoparticles of ZnFe2O4 were synthesized by chemical co-precipitation method and then tetraethyl orthosilicate (TEOS) and 3-aminopropyltriethoxy sil...
[ 6 ] - A Kinetic Study on Adsorption of Congo Red from Aqueous Solution by ZnO-ZnFe2O4-polypyrrole Magnetic Nanocomposite
In this work, magnetically separable ZnO-ZnFe2O4-PPy nanocomposite as an efficient adsorbent was synthesized by two steps. At first, zinc oxide (ZnO) and ZnFe2O4 nanoparticles were synthesized using simple and facile precipitation method. Then, ZnO-ZnFe2O4 mixed oxide was modified by polypyrrole (PPy). The adsorbent was character...
[ 7 ] - A Study on the Aggregation and Calf Thymus DNA Binding Characteristics of Anionic Cobalt(II) Tetrasulfonated Phthalocyanine
The aggregation behavior of anionic Cobalt(II) 4,4′,4ʺ,4‴-tetrasulfonated phthalocyanine, [Co(TSPc)4-] was studied at its various concentrations and different ionic strengths using optical absorption and resonance light scattering (RLS) spectroscopies in 5 mM phosphate buffer, pH 7.0 at 25 °C. The results show no aggregation behavior at concentration range of 5.1 × 10-6-7....
[ 8 ] - Thermodynamics Binding of Tetrakis (2,3,5,6-Tetrafluoro-N,N′,Nʺ-Trimethyl Ammonium Phenyl) Porphyrin Nickel(II) With Calf Thymus DNA
In this study, aggregation behavior of a water soluble cationic metalloporphyrin, meso-tetrakis (2,3,5,6-tetrafluoro-N,N´,N´´-trimethyl ammonium phenyl) porphyrin nickel(II) [Ni(II)(TF4TMAPP)]4+ is investigated in 5 mM aqueous phosphate buffer of pH 7.0 at 25.0 °C and various ionic strengths using optical absorption and resonance light scattering spectroscopic methods. The...
[ 9 ] - Response Surface Methodology for Optimizing Adsorption Process Parameters of Amaranth Removal Using Magnetic Layer Double Hydroxide (Fe3O4/ZnFe-LDH)
ABSTRACT Response surface methodology was employed to optimize the adsorption parameters of Amaranth onto magnetic layer double hydroxide (Fe3O4/ZnFe-LDH). Such optimization was undertaken to ensure a high efficiency over the experimental ranges employed, and to evaluate the interactive effects of the initial concentration of Amaranth, pH, adsorbent dosage, temperature and contact time on...
[ 10 ] - کاربرد الکترود اصلاح شده با نانوذرات مغناطیسی NiCuFe2O4 با ساختار اسپینلی برای اندازه گیری ناپروکسن در حضور استامینوفن
یک روش ساده و در عین حال حساس برای اندازه‌گیری ناپروکسن بر مبنای الکترود کربن خمیری اصلاح شده با NiCuFe2O4 و نانولوله های چند دیواره کربنی گزارش شده است. این الکترود اصلاح شده به صورت اختصار به صورت (MWCNTs/NiCuFe2O4/CPE) نشان داده شده است. رفتار الکتروشیمیایی ناپروکسن بر الکترود اصلاح شده با تکنیک‌های مختلفی نظیر ولتامتری چرخه ای، ولتامتری پالس تفاضلی و امپدانس الکتروشیمیایی بررسی شده است. لا...
نویسندگان همکار
علی ظهور 1