20 Result(s)
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Rahim Mohammad-Rezaei
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Article
An electrochemical immunosensor based on MXene-GQD/AuNPs for the detection of trace amounts of CA-125 as specific tracer of ovarian cancer
An electrochemical immunoassay system was developed to detect CA-125 using a glassy carbon electrode (GCE) modified with MXene, graphene quantum dots (GQDs), and gold nanoparticles (AuNPs). The combined MXene-...
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Article
Fabrication of MXene/chitosan/polyurea nanocomposite decorated on a graphenized substrate for electro-enhanced solid-phase microextraction of diclofenac followed by its determination using differential pulse voltammetry
A novel solid-phase microextraction fiber based on MXene-chitosan-polyurea (MXene/CS/EPPU) nanocomposite decorated on a graphenized pencil lead fiber (MXene/CS/EPPU/GPLF) was prepared and utilized for electro...
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Article
Copper (II) complexes with N, S donor pyrazole-based ligands as anticancer agents
A group of bidentate nitrogen and sulfur donor pyrazole derivative ligands abbreviated as Na[RNCS(Pz)], Na[RNCS(PzMe2)], Na[RNCS(PzMe3)], Na[RNCS(PzPhMe)], Na[RNCS(PzPh2)], where (R = Et, Ph), and their Cu (II) c...
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Article
Preparation of cerium oxide–MWCNTs nanocomposite bulk modified carbon ceramic electrode: a sensitive sensor for tamoxifen determination in human serum samples
In this study, cerium oxide and multi-walled carbon nanotubes nanocomposite were incorporated into the carbon ceramic electrode (CeO2–MWCNTs/CCE) as a renewable electrode for the electrocatalytic purposes. To dem...
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Fabrication of flexible polyaniline@ZnO hollow sphere hybrid films for high-performance NH3 sensors
In this study, a simple inexpensive gas sensor, which uses polyaniline@ZnO hollow sphere hybrid films, is prepared with different mole percentages of ZnO hollow spheres (5–30 mol%) and combining hydrothermal and
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Article
Conducting polymer-based electrically conductive adhesive materials: design, fabrication, properties, and applications
In the past few decades, increasing demands for electrically conductive adhesives (ECAs) have led to growing interest in the design and development of innovative strategies to obtain materials with synergetic ...
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Article
Ionic liquid-functionalized graphene quantum dots as an efficient quasi-solid-state electrolyte for dye-sensitized solar cells
In this study, graphene quantum dots (GQDs) functionalized with ionic liquid (IL) were introduced as an efficient quasi-solid-state hybrid electrolyte for dye-sensitized solar cells. The GQDs have been covalen...
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Article
A de novo theranostic nanomedicine composed of PEGylated graphene oxide and gold nanoparticles for cancer therapy
A de novo drug delivery nanosystem based on gold nanoparticles (GNPs), decorated poly(ethylene glycol) (PEG), and folate (FA)-conjugated graphene oxide (GO) was designed and developed successfully. Initially, ...
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Article
Preconcentration of mercury(II) using a magnetite@carbon/dithizone nanocomposite, and its quantification by anodic strip** voltammetry
A new adsorbent is described that consists of a magnetite@carbon/dithizone nanocomposite. It was characterized using energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, X-ray diffrac...
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Article
Amine-functionalized carbon nanotubes as curing agent for polystyrene-modified novolac epoxy resin: synthesis, characterization and possible applications
A novel epoxy resin nanocomposite containing epoxidized novolac (ENR) and epoxidized polystyrene (EPSt) was fabricated through the curing with amine-functionalized multiple-walled carbon nanotubes (MWCNTs–NH2). T...
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Article
Electrically conductive adhesive based on novolac-grafted polyaniline: synthesis and characterization
The aim of this study was to design and development of an efficient and facile strategy for the grafting of polyaniline (PANI) onto novolac-type phenolic resin. For this purpose, novolac resin (NR) was functio...
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Article
Manganese oxide nanoparticles electrodeposited on graphenized pencil lead electrode as a sensitive miniaturized pH sensor
pH monitoring in micro volume samples is required for environmental and clinical analysis. Low cost, miniaturized and stable metal oxide based pH sensors could be a suitable alternative to glass electrodes. In...
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Article
Electrodeposition of Ag nanoparticles on graphenized pencil lead electrode as a sensitive and low-cost sensor for iodate determination
In this study, a simple, sensitive and low-cost iodate electrochemical sensor based on graphenized pencil lead electrode (GPLE) modified with Ag nanoparticles (AgNPs) was presented. The GPLE was simply prepare...
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Article
Novel strategies for the synthesis of hydroxylated and carboxylated polystyrenes
Hydroxylated and carboxylated polystyrenes (PHMSt and PCSt, respectively) were synthesized using facile strategies. For this purpose, PSt was synthesized through atom transfer radical polymerization (ATRP) app...
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Article
Graphene quantum dots–eggshell nanocomposite to extract polycyclic aromatic hydrocarbons in water
In solid-phase extraction, the sorbent controls selectivity, affinity, and loading capacity. Many sorbents can be used, such as functionalized resin, naphthalene, activated carbon, molecular-imprinted polymers...
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Article
Synthesis and fluorescence studies of dual-responsive nanoparticles based on amphiphilic azobenzene-contained poly (monomethyl itaconate)
Here photo- and pH-responsive behavior of polymer micelles formed by synthesized azo-modified poly (monomethyl itaconate)s (PMMI-Azo) with appropriate amounts of azobenzene side groups (DSAzo) were reported. The ...
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Article
Solid phase extraction of mercury(II) using soluble eggshell membrane protein doped with reduced graphene oxide, and its quantitation by anodic strip** voltammetry
This article describes the preparation of a nanocomposite consisting of soluble eggshell membrane protein (SEP) doped with reduced graphene oxide (rGO) as a sorbent for the preconcentration of mercury(II) by s...
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Article
Graphene ceramic composite as a new kind of surface-renewable electrode: application to the electroanalysis of ascorbic acid
This study introduces a new surface-renewable electrode based on a sol–gel derived graphene ceramic composite. The electrode was prepared by dispersing graphene nanosheets into a solution of the sol–gel precur...
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Article
Amperometric determination of L-tyrosine by an enzymeless sensor based on a carbon ceramic electrode modified with copper oxide nanoparticles
We report on the electrochemical formation of copper oxide nanoparticles (CuO-NPs) at a carbon ceramic electrode (CCE) as a highly-porous substrate. A copper film was deposited on the surface of the CCE and de...
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Article
Non-enzymatic hydrogen peroxide sensor using an electrode modified with iron pentacyanonitrosylferrate nanoparticles
An electrochemical sensor was developed for determination of hydrogen peroxide (HP) based on a carbon ceramic electrode modified with iron pentacyanonitrosylferrate (FePCNF). The surface of an iron-doped CCE w...
