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Simultaneous elimination of diethyl phthalate, butylated hydroxy toluene and butylated hydroxy anisole from aqueous medium by an adsorption process on pretreated waste material; investigation of isotherms and neural network modeling
Springer Science and Business Media LLC - Tập 17 Số 6 - Trang 1377-1386 - 2020
Molecular dynamics simulation of the sliding of distamycin anticancer drug along DNA: interactions and sequence selectivity
Springer Science and Business Media LLC - Tập 14 - Trang 531-540 - 2016
Molecular dynamics simulations and umbrella sampling have been used to investigate the sliding of distamycin anticancer drug along the DNA minor groove. The potential energy surface calculated for the sliding of drug shows three minima. The global minimum corresponds to the binding of drug to the AT-rich region, which is the origin of sequence selectivity of distamycin. This selectivity originates......
Investigation of SDS effect on the properties and performance of nanofiltration membranes prepared on polyolefin support
Springer Science and Business Media LLC - - Trang 1-14 - 2023
Thin-film composite polyamide (TFC-PA) membranes have recently been found to be highly capable of improving separation efficiency when subjected to surfactant-assisted interfacial polymerization (IP). There is a widespread belief that surfactants' ability to accelerate the diffusion of amine monomers, thereby promoting IP reactions, accounts for the improved performance. Through the IP and use of ......
Application of electrochemical sensor based on nanosheets G-C3N4/CPE by square wave anodic stripping voltammetry method to measure residual amounts of toxic bentazon in water samples
Springer Science and Business Media LLC - Tập 19 - Trang 3377-3385 - 2022
The present work describes a method known as techniques for measuring toxic Bentazon, one of the most problematic pesticides polluting in water samples, and extremely harmful to humans and animals even at low concentrations using G-C3N4 nanosheets sensor. Here, we report the use of an electrochemical approach for analytical determination of toxic Bentazon that takes 100 s. The calibration curve wa......
Electrochemical application of ZnCr2O4@MWCNTs-modified carbon paste electrode for sensing of chlorthalidone in its biological fluids
Springer Science and Business Media LLC - Tập 20 - Trang 2329-2338 - 2023
A new method for chlorthalidone (CLT) determination was developed on multiwalled carbon nanotube-modified nanocrystalline zinc chromite carbon paste electrodes (ZnCr2O4@MWCNTs/CPEs). Electrochemical performance of CLT was assessed by a cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The nanostructures ZnO, ZnCr2O4, and ZnCr2O4/MWCNTs were prepared by chemical co-precipitation met......
Spectrophotometric determination of metronidazole in pharmaceutical pure and dosage forms using p-benzoquinone
Springer Science and Business Media LLC - Tập 2 - Trang 197-202 - 2005
A simple and accurate spectrophotometric method for the determination of metronidazole in pure and pharmaceutical dosage forms has been developed. The proposed method is based on the reduction of the nitro group to amino group of the drug. This can be achieved by heating a mixture of an alcoholic solution of metronidazole, zinc powder and dilute hydrochloric acid in a water bath at 90 ± 5 °C for 1......
Proteomic profiling of the rat hippocampus from the kindling models of electrical epilepsy and treatment with low-frequency deep brain stimulation: the important role of the cytoskeleton
Springer Science and Business Media LLC - Tập 20 - Trang 2491-2499 - 2023
Epilepsy is one of the most common neurological diseases and affects 1–2% of the world’s population. Epilepsy is associated with recurrent and unpredictable seizures. Since 20% of epileptic patients suffer from drug resistance, much research is being done to find new ways to treat epilepsy. One of the new therapies is low-frequency deep brain stimulation (L-DBS). Although this method has an antico......
Synthesis of pure nano Cr2O3 from chromite ore by a novel method and investigation of its composites with bentonite for their photocatalytic properties
Springer Science and Business Media LLC - Tập 20 - Trang 2805-2819 - 2023
In the present study, nano Cr2O3 was prepared with a novel method from chromite ore. In this method, K2Cr2O7 was prepared by alkaline melting of chromite ore. Then, the precursor complex K3[Cr(C2O4)3] was prepared using potassium dichromate obtained from chromite ore and Merck Co. for comparing their purity. Therefore, two types of nano (Cr2O3)M or ch (M = Merck, ch = chromite ore) were prepared b......
Ag3PO4/AgSbO3 composite as novel photocatalyst with significantly enhanced activity through a Z-scheme degradation mechanism
Springer Science and Business Media LLC - Tập 19 - Trang 821-838 - 2021
In this work, a new composite photocatalyst, combined with Ag3PO4 and AgSbO3 (AZA Catalyst), was elaborately designed, successfully synthesized, and characterized by many techniques, such as XRD, UV-DRS, SEM–EDS, XPS, and TEM. Then, the AZA Catalyst was applied for the photocatalytic degradation of Methylene Blue (MB) and tetracycline. The results showed that AZA Catalyst could effectively degrade......
Determination of trace amounts of nickel by differential pulse adsorptive cathodic stripping voltammetry using calconcarboxylic acid as a chelating agent
Springer Science and Business Media LLC - Tập 2 - Trang 32-39 - 2005
A method for the determination of nickel(II) by stripping voltammetry is described. The method is based on the adsorptive accumulation of nickel(II) calconcarboxylic acid complex onto a hanging mercury drop electrode (HMDE), followed by the reduction of the adsorbed complex using differential pulse voltammetry. The optimum operating conditions and parameters were found to be 0.05 M NH3/NH4Cl buffe......
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