• MOSTAFA AZIMZADEH

      Articles written in Bulletin of Materials Science

    • Synthesis and characterization of inherently radiopaque nanocomposites using biocompatible iodinated poly(methyl methacrylate-$co$-acrylamide) and graphene oxide

      SAEED SHIRALIZADEH HOSSEIN NASR-ISFAHANI AMIR HOSSEIN AMIN MOSTAFA AZIMZADEH RAMEZAN ALI TAHERI

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      New inherently radiopaque nanocomposites were prepared using iodine-containing poly(methyl methacrylateco-acrylamide) and graphene oxide. For this purpose, P(MMA-$co$-AA) was synthesized via copolymerization of methylmethacrylate and acrylic acid, and modified with 4-iodophenyl isocyanate and 3,4,5-triiodophenyl isocyanate to form poly[(methyl methacrylate-$co$-(N-4-iodophenyl)acrylamide)] (1I-P(MMA-$co$-AA)) and poly[(methyl methacrylate-$co$-(N-3,4,5-triiodophenyl)acrylamide)] (3I-P(MMA-$co$-AA)), respectively. For comparative evaluation, the non-iodinatedcopolymer (PIC-P(MMA-$co$-AA)) was prepared via reaction of the P(MMA-$co$-AA) with phenyl isocyanate to investigate the effect of iodinated substituents on the morphology and thermal characteristics of the nanocomposites. All the nanocomposites were characterized by X-ray diffraction analysis, scanning electron microscopy, X-radiography and thermogravimetricanalysis. The results proved that thermal properties of the nanocomposites improved by the introduction of different amounts of graphene oxide into the copolymers’matrix. Radiopacity measurements showed the excellent radiopacityof iodinated nanocomposites and proved that 3I-GO-5 had radiopacity equivalent to that of an aluminium wedge with 2-mm thickness.

    • Electrochemical detection of bupropion drug using nanocomposite of molecularly imprinted polyaniline/Au nanoparticles/graphene oxide

      SAEID JAFARI MOHAMMAD DEHGHANI NAVID NASIRIZADEH MOSTAFA AZIMZADEH FATEMEH DEHGHAN BANADAKI

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      Here, we developed an impedimetric nanosensor by modifying the screen-printed carbon electrode using ananocomposite of molecularly imprinted polyaniline/gold nanoparticles/graphene oxide to facilitate the charge transferprocess and increase the specific surface area of the sensor. The electropolymerization and MIP fabrication process, as well asthe optimization of the electrode modification were optimized using a set of experiments. The surface morphology of themodified electrode was characterized by field emission scanning electron microscopy, energy dispersive spectroscopy andelectrochemical impedance spectroscopy. The analytical assessments of the bupropion hydrochloride (BUP) electrochemical nanosensor showed a linear range from 2.0 to 990.0 nM with the limit of detection of 0.5 nM. The results of selectivity tests of the nanosensor showed a high specificity towards BUP compared to other similar molecules. Furthermore, the developed sensor was successfully applied to detect BUP in tablets and urine samples with a good recovery percentage.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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