A novel magnetic solid phase extraction based on mercaptophenylboronic acid (MPBA)-functionalized Fe3O4-NH2@Au nanomaterial (Fe3O4-NH2@Au-MPBA) was developed for selective separation and enrichment of catecholamines (including dopamine, norepinephrine adrenaline). Fe3O4-NH2@Au-MPBA nanoparticles were achieved by self-assembly-anchoring MPBA molecules the surface nanocomposites, which synthesize...

We present an efficient approach to develop cellulose nanocrystal (CNC) hybrids with magnetically responsive Fe3O4 nanoparticles that were synthesized using the (Fe3+/Fe2+) coprecipitation. After 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-catalyzed oxidation of CNC, carbodiimide (EDC/NHS) was used for coupling amine-containing iron oxide nanoparticles that were achieved by dopamine li...

Preparation and characterization of Graphene Oxide (GO) Fe3O4 nanocomposite has been done. The characterized by XRD showed that graphite,GO GO-Fe3O4 were amorph. Characterized FTIR there a distinctive vibration bands C-O,C=O, C=C, OH, additional belong to Fe-O dan Fe-C for the GO-Fe3O4. FESEM analysed GO have smooths sheets, fill wrinkled circle on surface was presence Fe3O4. diameters 39 nm. A...

Thesis Abstract Background: Graphene oxide (GO) is a multifunctional carbon nanomaterial with tremendous potential in medical science including cancer therapy. It has unique physical, and chemical properties to be used as drug carrier such Doxorubicin (DOX). Aim: This study aimed load DOX on supramagnetic iron GO (GO/Fe3O4) passive active forms or without folic acid (FA) compare the anti-tumor ...

A method for grafting ethylenediamine to a magnetic graphene oxide composite (EDA-GO@Fe3O4) was developed for Cr(VI) decontamination. The physicochemical properties of EDA-GO@Fe3O4 were characterized using HRTEM, EDS, FT-IR, TG-DSC, and XPS. The effects of pH, sorbent dose, foreign anions, time, Cr(VI) concentration, and temperature on decontamination process were studied. The solution pH can l...

Herein, a novel and ultrasensitive label-free electrochemical immunosensor was proposed for quantitative detection of human Immunoglobulin G (IgG). The amino functionalized magnetic graphenes nanocomposites (NH2-GS-Fe3O4) were prepared to bond gold and silver core-shell nanoparticles (Au@Ag NPs) by constructing stable Au-N and Ag-N bond between Au@Ag NPs and -NH2. Subsequently, the Au@Ag/GS-Fe3...

(3-Aminopropyl) triethoxysilane (APTES) modified magnetic graphene oxide was synthesized and applied in the adsorption of three heavy metals, Pb(II), Cd(II) Ni(II) from aqueous solution. An approach to prepare GO adopted by using (3-aminopropyl) as a functionalizing agent on nanosilica coupled with form Fe3O4@SiO2–NH2/GO nanocomposite. FT-IR, XRD, BET, UV, VSM, SAXS, SEM TEM were used character...

In this work, for eliminating the (RR1346), considered to be a waste in wastewater from dye industries electrochemical advanced oxidation process has been used. Graphene oxide coated carbon cloth (GO/CC) and Fe3O4 /GO coated carbon cloth (Fe3O4/GO/CC) electrodes has been fabricated by synthesized GO and Fe3O4 nanoparticles. Characteristic properties such as surface morphology as the main reason...