RISS 검색 - 국내학술지논문

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Growth of 2D-layered double hydroxide nanorods heterojunction with 2D tungsten carbide nanocomposite: Improving the electrochemical sensing of norfloxacin

Xavier Benadict Joseph,Megha Maria Stanley,Sea-Fue Wang,Mary George 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.110 No.-
The potential impact of antibiotics in water environments affects aquatic organisms, microbial communitystructure, and resistance genes. In this work, we report the hydrothermal synthesis of twodimensional(2D) tungsten carbide (WC) nanoparticles on CO32- anion intercalated three-dimensional(3D) self-assembled nickel–cobalt layered double hydroxide (NiCo-LDH) nanorods, for the electrochemicaldetermination of norfloxacin (NRF). The synergistic impact between the dual active components ofthe prepared electrode offered increased active surface area, high electrical conductivity, and promptmass and ion diffusion, resulting in improved electrochemical performance for NRF monitoring. In idealconditions, WC@NiCo-LDH modified electrode exhibited enhanced electrochemical characteristics, widelinear response (DPV = 0.02–83.4 lM and in i-t = 0.002–346 lM), and lowdetection limit (LOD) (DPV = 0. 005 lM and i-t = 0.002 lM). Furthermore, good reproducibility, virtuous operational and cycle stabilities,were obtained. The practical applications in real-world samples with acceptable recovery ranges wereverified the interference-free sensing of NRF.
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Synthesis of transition metal titanium oxide (MTiOx, M = Mn, Fe, Cu) and its application in furazolidone electrochemical sensor

Antolin Jesila Jesu Amalraj,Sea-Fue Wang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.111 No.-
Importance in the precise determination of Furazolidone (FZD) on biological, food, and water sampleswere established for regulating health and nutrition, diagnosis/treatment, pharmacological research,and food/drug quality monitoring. Thus, the sensitive and accurate determination of FZD is necessary. Here, we construct facile and low-cost Metal Titanate (MTiOx, M = Mn, Fe, Cu) as an electrode modifiervia a different one-step synthesis method. By the virtue of unique properties, MnTiO3 has been successfullyemployed in the electrochemical evaluation of FZD such as high active surface area (0.1252 cm2) andhigh electron transfer kinetics with low charge transfer resistance (Rct = 374.65 X) with good electrocatalytickinetic parameters. In this regard, MnTiO3 is employed in the electrochemical evaluation ofFZD through cyclic voltammetry (CV) and Differential Pulse Voltammetry (DPV) techniques. The proposedMnTiO3/GCE sensor shows exquisite electrochemical characteristics including a wide linear range(0.05 to 1101.6 lM), nanomolar detection limit (4.05 nM), and encouraging sensitivity (68.77 lA lM1cm2). Moreover, it also exemplifies exquisite selectivity, repeatability, reproducibility, and storage stabilitytherefore; MnTiO3 is employed in the practical feasibility analysis in various real samples, whichshows excellent recovery results.
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Silver-capped selenium explored as an electro-catalyst for simultaneous detection of nitro-aromatic drugs in different aqueous samples

Antolin Jesila Jesu Amalraj,Umesh Narasimha Murthy,Sea-Fue Wang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.108 No.-
Herein, we have fabricated silver (Ag) over selenium (Se) to explore its enriched electrochemical performancetowards the simultaneous detection of nitro-aromatic drugs (nitrofurantoin (NFT) and Pnitrophenol(P-NP)). Due to its synergistic effect, Ag/Se modified GCE showed excellent electrocatalyticactivity compared to other electrodes. Well-defined and divergent reduction peaks wereobtained at 0.49 V (NFT) and 0.85 V (P-NP) with a detection range of 0.9 V at Ag/Se/GCE. It withholdsan extensive linear range of 0.1 to 210 mM for NFT and 0.1 to 150 mM for P-NP with a nanomolar leveldetection limit of 23.87 nM L1 & 7.82 nM L1; an appraisable sensitivity of 1.138 mA mM1 cm2 &2.86 mA mM1 cm2 for NFT and P-NP, respectively. Interestingly, the electrode possesses a high selectivityin the presence of biomolecules, nitro drugs, and metal ions. Examination of nitro-aromatic drug contaminationon water sources shows a massive peril to human life and marine environs due to its adverse hazardouseffects. Further, the fabricated Ag/Se-based electrochemical sensor was exposed to variousenvironmental aqueous samples to detect NFT& P-NP which has demonstrated an exquisite recoveryresults in practical feasibility. Thereby confirms that Ag/Se-based electrochemical sensors have boundlesspotential for ecological investigations and sensing applications.
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Rational design of platinum assimilated 3-D zinc cobalt oxide flowers for the electrochemical detection of caffeine in beverage and energy drink

Antolin Jesila Jesu Amalraj,Umesh N.,Sea-Fue Wang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.106 No.-
In this work, platinum nanoparticles (Pt) decorated on a spinel group, zinc cobalt oxide (ZnCo2O4) 3-Dflower was intended to detect caffeine electrochemical sensor. Pt particles were used to enhance the performanceof hydrothermally prepared 3-D ZnCo2O4 flower. So Pt nanoparticles were decorated on eachthin nanosheet of self-assembled 3-D flower-like ZnCo2O4. The thin transparent nanosheet of theZnCo2O4 flower will benefit electrochemical sensors by simplifying its ion exchange. Therefore,Pt@ZnCo2O4 shows an excellent electrochemical conductivity, which promotes the caffeine-based sensor’srapid electrochemical oxidation. Using amperometric i-t at an applied potential of 1.45 V,Pt@ZnCo2O4 modified electrode shows widespread of two linear ranges (0.05 to 265.55 lM and 295.55to 757.55 lM) with a low detection limit (0.0114 and 0.01657 lM) and high sensitivity (3.419 and1.862 lA lM1 cm2). Moreover, good results were obtained for the real-time detection of caffeine insugar-free cola beverage and energy drink samples. Henceforth, the developed method could be an idealway to detect caffeine in real samples.

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