Electrochemical sensors based on a GCE modified with rice-shaped bimetallic MOFs incorporated rGO for the detection of lead( ii ) ions.

A reduced graphite oxide nanosheet electrode (RGOnS) was prepared as a sensor for amoxicillin (AMX) detection, an antibiotic commonly used in the livestock farm, by square-wave adsorptive stripping voltammetry technique. Graphite with shape produced from chronoamperometry process at 5 V and then electrochemical reduction carried out to form RGOnS restored long-range conjugated networks better conductivity. The electrodes were characterized SEM, EDX, FTIR spectroscopy. optimal potential of −1...

We introduce the fabrication and electrochemical application of platinum nanoflower-modified glassy carbon electrode (PtNFs/GCE) for trace level determination lead cadmium using differential pulse anodic stripping voltammetry (DPASV). The modified electrodes have been characterized by EDX, XRD, SEM, AFM techniques to confirm chemical physical properties. effect potential electrodeposition on properties was investigated. At −0.2 V potential, developed with a nanoflower shape dispersed densely...

The study reports the development of a nanostructured mixed-valence Fe(II)Fe(III)BTC metal-organic framework (BTC = 1, 3, 5-benzenetricarboxylate) modified carbon paste electrode as novel sensor for amoxicillin detection in aqueous solutions using square wave voltammetry. physicochemical properties FeBTC were characterized X-ray diffraction spectroscopy, Fourier-transform infrared Brunauer–Emmett–Teller analysis, electron microscopy (SEM), transmission (TEM), and photoelectron spectroscopy....

Sulfur compounds in fuel such as thiophene, benzothiophene and dibenzothiophene are the primary source of SO x emissions, leading to environmental pollution acid rain.

Abstract Platinum nanoflowers modified glassy carbon electrodes (PtNFs/GCE) was fabricated simply for lead determination in water samples. The were prepared by electrodeposition hexachloroplatinic acid solution at constant potential. influence of deposition time and potential on surface morphology, chemical composition, electrochemical properties electrode investigated. At −0.2 V 150 s duration, platinum developed as nanoflower shape scattered densely all over the surface, producing largest...

Vibrio spp. cause vibriosis in many saltwater and freshwater aquatic species, such as fish, crustaceans, mollusks. parahaemolyticus alginolyticus are among the few species commonly found infections fish. This study aimed at investigating chemical composition evaluating antibacterial activities of Salix babylonica L. The ethyl acetate (LL2) methanolic (LL3) extracts were used to evaluate resistance strains V. LBT6 VTCC 12233, two alginolyticus, NG20 ATCC 17749, compared their efficacy with...

A sensor based on graphite nanosheets was fabricated through the electrochemical expansion of a electrode in dimethyl sulfoxide for sensitive determination enrofloxacin. The modified surface exhibited distinctive structure nanoplates, characterized by layer thickness ranging from few nanometers to ten nanometers. developed displayed notable properties, including faster charge transfer rate and larger electrochemically active area, which 1.3 times greater compared unmodified electrode. As...

TÓM TẮT Thải ghép cấp thể giàu tương bào (Plasma cell rich rejection - PCAR), trước đây còn được gọi là viêm gan hoặc tự miễn de novo. Là một dạng rối loạn chức năng sau xảy ra ở 3% đến 5% người bệnh có lí mà không tiền sử đó. PCAR nguy cơ gây mất mảnh cao nhưng dễ bị bỏ sót do thải hiếm gặp, đặc biệt trong trẻ em. Trong phạm vi bài báo này, chúng tôi cáo ca khi từ cho sống bất đồng nhóm máu. ABSTRACT PLASMA CELL RICH REJECTION IN LIVER TRANSPLANT RARE CASE REPORT AND LITERATURE REVIEW...

The present paper reports the fabrication of inverse opal photonic crystals (IOPCs) by using SiO2 spherical particles with a diameter 300 nm as an crystal template and poly(ethylene glycol) diacrylate (PEGDA) material. Characteristics fluorescence properties fabricated IOPCs were investigated Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), reflection spectroscopy, microscopy. results clearly showed that formed comprising air...

Ciprofloxacin (Cip), a fluoroquinolone antibiotic, was determined by linear sweep adsorptive stripping voltammetric method using multilayer reduced graphene oxide electrode (m-rGO). The m-rGO fabricated directly, simply and promptly from graphite platform potentiostatic technique without further modification. produced exhibited excellent performance for ciprofloxacin (Cip) determination with much higher signal of Cip than that on the initial (13.4 times). This dominance resulted large...

Cancer is a global concern and the potential targeting of cancer stem cells (CSCs) has gained major attention in anticancer drug discovery research. Various natural compounds have shown promising effects suppressing cancer, prompting scientific interest. In this study, we investigated anti-CSC properties schisandracaurin C, novel compound derived from Vietnamese plant Schisandra cauliflora. To evaluate its efficacy, employed MTT assay, flow cytometry analysis, caspase-3 assay...

In this study, three antibiotics, chloramphenicol (CAP), amoxicillin (AMX), and enrofloxacin (ENR), were simultaneously analysed for the first time using electrochemical sensors. The multilayer graphene electrode used in sensor was directly rapidly fabricated from graphite through a one-step chronoamperometry method. Scanning electron microscopy cyclic voltammetry techniques revealed multilayer-graphene nanostructure of prepared with large electrochemically active surface area good activity....

This study reports a sensor using bimetallic metal-organic framework combined with 1,3,5-benzenetricarboxylic acid (BTC) (ZrCuBTC MOFs) functionalized graphene oxide (GO) and cetyltrimethylammonium bromide (CTAB) to determine the concentration of 2,4-dichlorophenol (2,4-DCP) in industrial wastewater. ZrCuBTC/GO was cast on bare glassy carbon electrode followed by CTAB for analyte adsorption produce CTAB/ZrCuBTC/GO@GCE. The characterized X-ray photoelectron spectroscopy (XPS), scanning...

A novel electrochemical sensor for the detection of enrofloxacin (ENR) in aqueous solutions has been developed using a carbon paste electrode modified with mixture metal-organic frameworks (MOFs) CuBTC and FeBTC. These MOFs were successfully synthesized via solvothermal method characterized various techniques, including X-ray diffraction, Fourier-transform infrared spectroscopy, Brunauer–Emmett–Teller analysis, photoelectron spectroscopy. The MOF exhibited particle size ranging from 40 to...

This study investigates the modification of pencil lead graphite electrodes with polyglutamic acid using an effective and fast static method to develop a sensor for detection enrofloxacin (ENR). The successful fabrication pGA on electrode surface was confirmed by scanning electron microscopy, energy dispersive X-ray analysis, Fourier-transform infrared spectroscopy. conditions electrochemical modification, including applied potentials number cycles in potentiostatic process, were...

A zeolitic imidazolate framework ZIF-67 was synthesized by an eco-friendly solvothermal method, using ethanol as solvent at room temperature.The morphology and structure of obtained were characterized X-ray diffraction, scanning electron microscopy (SEM), nitrogen adsorption/desorption isotherm, energy dispersive spectroscopy (EDS), Fourier-transform infrared (FTIR).The modified graphite paste electrode (ZIF-67-GPE) prepared used for the electrochemical detection acetaminophen (AC).Cyclic...

Hierarchically bimetallic Zr-Cu metal–organic framework combined with 1,3,5-benzenetricarboxylic acid (Zr-CuBTC MOFs) was synthesized using hydrothermal reaction and used as modifier for investigation of non-electroactive glyphosate. These MOFs were dropcasted on a glassy carbon electrode (GCE) glyphosate tested by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), differential pulse (DPV). Glyphosate in water recognized the difference currents spiked non-spiked samples....

This paper presents the use of smart city solution for protection urban biodiversity. biodiversity is crucial human wellbeing and sustainable development. The first biodiversity, then risk its deterioration by activity (change in land-use; pollution air, soil water; noise pollution; light alien species; construction, flood). Finally, briefly Smart City including data collection, analysis reporting control how this could be used