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Yan Z, Zhou X, Kong L, Xu W, Hao J, Sun S, Feng J, Zhi H, Zhu X, Hu L. Spindle-shaped Cu-Ru mesoporous nanospheres with enhanced enzyme-like activity for visual differentiation of toxic o-/m-aminophenol and recognition mechanisms. ENVIRONMENTAL RESEARCH 2023; 239:117407. [PMID: 37838200 DOI: 10.1016/j.envres.2023.117407] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/25/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
To effectively differentiate toxic aminophenol isomers, a kind of spindle-shaped Cu-Ru bimetal mesoporous nanozyme (Cu-Ru MPNZ) with high specific surface was developed by one-pot homogeneous reduction method, directed by hexadecyl trimethyl ammonium bromide (CTAB) in this work. By virtue of the distinctive microstructure, Cu-Ru MPNZ expressed superior bi-functional oxidase- and peroxidase-mimic activity to catalyze the oxidation of 3,3',5,5,'-tetramethylbenzidine (TMB) and 2,2'-azinobis (3-ethylbenzothiazoline-6- sulfonic acid) ammonium salt (ABTS) with low Michaelis-Menten constants and quick reaction rates. Especially, toxic aminophenol isomers could exclusively react with the oxydates of TMB or ABTS to express differentiable signals in color. Under the optimal conditions, Cu-Ru MPNZ was successfully applied for visual differentiation of toxic aminophenol isomers in real aqueous, juices and medicinal samples with low detection limits (1.60 × 10-8 mol/L for o-aminophenol and 3.25 × 10-8 mol/L for m-aminophenol) and satisfactory recoveries (96.6-103.5%). The different recognition mechanisms of Cu-Ru MPNZ to toxic o- and m-aminophenol isomers were proposed for the first time as far as we known. This work will provide a potential way to monitor different organic isomer pollution in future.
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Affiliation(s)
- Zhengquan Yan
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China.
| | - Xuemei Zhou
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Lingmin Kong
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Wenjing Xu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Junkai Hao
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Shuo Sun
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Jing Feng
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Huitian Zhi
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Xiao Zhu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Lei Hu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province & Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China.
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Sekar S, Yun JS, Lee S. Metal-free electrocatalytic nanocomposites of poly azovan blue-decorated graphitic carbon nitride for simultaneously sensing paracetamol and 4-aminophenol. ENVIRONMENTAL RESEARCH 2023; 239:117293. [PMID: 37816424 DOI: 10.1016/j.envres.2023.117293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/25/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023]
Abstract
Excessive consumption of paracetamol (PA) and 4-aminophenol (4-AP) can have harmful effects on the human body. This study developed a novel electroanalytical technique that utilizes the nanocomposites of poly azovan blue (PAB)-decorated graphitic carbon nitride (g-C3N4), deposited onto a screen-printed carbon electrode (SPCE), for the concurrent sensing of PA and 4-AP. The fabricated g-C3N4@PAB/SPCE exhibited exceptional synergistic effects, such as a high active electrochemical surface area and excellent electron transfer properties. The electrochemical behavior of g-C3N4@PAB/SPCE for simultaneous PA and 4-AP sensing was evaluated in the linear dynamic ranges of 0.08-75 and 0.05-90 μM, with the detection limits (S/N = 3) of 0.011 and 0.016 μM and sensitivities of 2.974 and 2.857 μA/μM/cm-2 for PA and 4-AP, respectively. Additionally, g-C3N4@PAB/SPCE showed long-term stability, high reproducibility (RSD = 2.17%, n = 4), and superior anti-interference capabilities. Finally, when g-C3N4@PAB/SPCE was tested for simultaneously sensing both PA and 4-AP in tap water and artificial urine models, it exhibited satisfactory recoveries, demonstrating its potential use for various industrial and clinical applications.
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Affiliation(s)
- Sankar Sekar
- Department of Semiconductor Science, Dongguk University-Seoul, Seoul, 04620, Republic of Korea; Quantum-Functional Semiconductor Research Center, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Ji-Seop Yun
- Department of Semiconductor Science, Dongguk University-Seoul, Seoul, 04620, Republic of Korea; Quantum-Functional Semiconductor Research Center, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Sejoon Lee
- Department of Semiconductor Science, Dongguk University-Seoul, Seoul, 04620, Republic of Korea; Quantum-Functional Semiconductor Research Center, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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3
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Pérez E, Vázquez L, Quintana C, Petit-Domínguez MD, Casero E, Blanco E. Synergistic effect of manganese (II) phosphate & diamond nanoparticles in electrochemical sensors for reactive oxygen species determination in seminal plasma. Anal Chim Acta 2023; 1264:341301. [PMID: 37230730 DOI: 10.1016/j.aca.2023.341301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/27/2023]
Abstract
In this work, we explore the ability of manganese (II) phosphate (MnP) as a catalytic element for the determination of reactive oxygen species (ROS) in seminal plasma, when MnP is employed as modifier of a glassy carbon electrode. The electrochemical response of the manganese (II) phosphate-modified electrode shows a wave at around +0.65 V due to the oxidation of Mn2+ to MnO2+, which is clearly enhanced after addition of superoxide, the molecule considered as the mother of ROS. Once proved the suitability of manganese (II) phosphate as catalyst, we evaluate the effect of including a 0D (diamond nanoparticles) or a 2D (ReS2) nanomaterial in the sensor design. The system consisting of manganese (II) phosphate and diamond nanoparticles yielded the largest improvement of the response. The morphological characterization of the sensor surface was performed by scanning electron microscopy and atomic force microscopy, while cyclic and differential pulse voltammetry were employed for the electrochemical characterization of the sensor. After optimizing the sensor construction, calibration procedures by chronoamperometry were performed, leading to a linear relation between peak intensity and the superoxide concentration in the range of 1.1 10-4 M - 1.0 10-3 M with a limit of detection of 3.2 10-5 M. Seminal plasma samples were analysed by the standard addition method. Moreover, the analysis of samples fortified with superoxide at the μM level leads to recoveries of 95%.
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Affiliation(s)
- Eva Pérez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luis Vázquez
- Instituto de Ciencia de Materiales de Madrid (ICMM), CSIC, c/ Sor Juana Inés de la Cruz Nº3, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, c/ Francisco Tomás y Valiente, Nº7, Campus de Excelencia de la Universidad Autónoma de Madrid, 28049, Madrid, Spain.
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Shan X, Kuang D, Feng Q, Wu M, Yang J. A dual-mode ratiometric aptasensor for accurate detection of pathogenic bacteria based on recycling of DNAzyme activation. Food Chem 2023; 423:136287. [PMID: 37178600 DOI: 10.1016/j.foodchem.2023.136287] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/11/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Pathogenic bacteria have a significant impact on food safety. Herein, an innovative dual-mode ratiometric aptasensor was constructed for ultrasensitive and accurate detection of Staphylococcus aureus (S. aureus) based on recycling of DNAzyme activation on gold nanoparticles-functionalized MXene nanomaterials (MXene@Au NPs). Electrochemiluminescent (ECL) emitter-labeled probe DNA (probe 2-Ru) containing the blocked DNAzyme was partly hybridized with aptamer and then captured by electrochemical (EC) indicator-labeled probe DNA (probe 1-MB) on electrode surface. When S. aureus presented, the conformation vibration of probe 2-Ru activated the blocked DNAzymes, leading to recycling cleavage of probe 1-MB and ECL tag close to electrode surface. Based on the reverse change tendencies of ECL and EC signals, aptasensor achieved S. aureus quantification from 5 to 108 CFU/mL. Moreover, the self-calibration characteristic of the aptasensor with dual-mode ratiometric readout ensured the reliable measurement of S. aureus in real samples. This work showed useful insight into sensing foodborne pathogenic bacteria.
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Affiliation(s)
- Xia Shan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Life Sciences, Nanjing University, Nanjing 210023, China; Xinglin College, Nantong University, Nantong 226019, China
| | - Deqi Kuang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Qiumei Feng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Meisheng Wu
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Jie Yang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Life Sciences, Nanjing University, Nanjing 210023, China.
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Wang M, Feng L. A carbon based-screen-printed electrode amplified with two-dimensional reduced graphene/Fe 3O 4 nanocomposite as electroanalytical sensor for monitoring 4-aminophenol in environmental fluids. CHEMOSPHERE 2023; 323:138238. [PMID: 36868416 DOI: 10.1016/j.chemosphere.2023.138238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The analysis water pollutants are so important strategy for investigation of water quality. On the other hand, 4-aminophenol is known as a hazardous and high-risk compound for humans, and its detection and measurement is very important for investigating the quality of surface and groundwater. In this study, graphene/Fe3O4 nanocomposite was synthesized by a simple chemical method and characterized by EDS and TEM methods and results showed Nano spherical shape of Fe3O4 nanoparticle with diameter about 20 nM decorated at surface of 2D reduce graphene nanosheet (2D-rG-Fe3O4). The 2D-rG-Fe3O4 was used as excellent catalyst at surface of carbon-based screen-printed electrode (CSPE) and used as electroanalytical sensor in monitoring and determination of 4-aminophenol in waste water sample. The results confirmed improving ∼4.0 times in oxidation signal and reducing 120 mV in oxidation potential of 4-aminophenol at surface of 2D-rG-Fe3O4/CSPE compare to CSPE, respectively. The electrochemical investigation showed pH dependence behavior with equal value of electron and proton for -aminophenol at surface of 2D-rG-Fe3O4/CSPE. Using square wave voltammetry method (SWV), the 2D-rG-Fe3O4/CSPE successfully monitored 4-aminophenol in the concentration range 1.0 nM-200 μM. Finally, 2D-rG-Fe3O4/CSPE monitored 4-aminophenol in the different environmental fluids such as urban waste water, industrial waste water and river samples with recovery range 97.2%-104.3% that confirm powerful ability of 2D-rG-Fe3O4/CSPE as analytical tool.
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Affiliation(s)
- Moxi Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, PR China
| | - Li Feng
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
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Karimi-Maleh H, Darabi R, Karimi F, Karaman C, Shahidi SA, Zare N, Baghayeri M, Fu L, Rostamnia S, Rouhi J, Rajendran S. State-of-art advances on removal, degradation and electrochemical monitoring of 4-aminophenol pollutants in real samples: A review. ENVIRONMENTAL RESEARCH 2023; 222:115338. [PMID: 36702186 DOI: 10.1016/j.envres.2023.115338] [Citation(s) in RCA: 75] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/26/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
p_Aminophenol, namely 4-aminophenol (4-AP), is an aromatic compound including hydroxyl and amino groups contiguous together on the benzene ring, which are suitable chemically reactive, amphoteric, and alleviating agents in nature. Amino phenols are appropriate precursors for synthesizing oxazoles and oxazines. However, since the toxicity of aniline and phenol can harm human and herbal organs, it is essential to improve a reliable technique for the determination of even a trace amount of amino phenols, as well as elimination or (bio)degradation/photodegradation of it to protect both the environment and people's health. For this purpose, various analytical methods have been suggested up till now, including spectrophotometry, liquid chromatography, spectrofluorometric and capillary electrophoresis, etc. However, some drawbacks such as the requirement of complex instruments, high costs, not being portable, slow response time, low sensitivity, etc. prevent them to be employed in a wide range and swift in-situ applications. In this regard, besides the efforts such as (bio)degradation/photodegradation or removal of 4-AP pollutants from real samples, electroanalytical techniques have become a promising alternative for monitoring them with high sensitivity. In this review, it was aimed to emphasize and summarize the recent advances, challenges, and opportunities for removal, degradation, and electrochemical sensing 4-AP in real samples. Electroanalytical monitoring of amino phenols was reviewed in detail and explored the various types of electrochemical sensors applied for detecting and monitoring in real samples. Furthermore, the various technique of removal and degradation of 4-AP in industrial and urban wastes were also deliberated. Moreover, deep criticism of multifunctional nanomaterials to be utilized as a catalyst, adsorbent/biosorbent, and electroactive material for the fabrication of electrochemical sensors was covered along with their unique properties. Future perspectives and conclusions were also criticized to pave the way for further studies in the field of application of up-and-coming nanostructures in environmental applications.
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Affiliation(s)
- Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, PR China; Department of Chemical Engineering and Energy, Quchan University of Technology, Quchan, 9477177870, Iran; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
| | - Rozhin Darabi
- School of Resources and Environment, University of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Ave, Chengdu, PR China
| | - Fatemeh Karimi
- Department of Chemical Engineering and Energy, Quchan University of Technology, Quchan, 9477177870, Iran.
| | - Ceren Karaman
- Department of Electricity and Energy, Akdeniz University, Antalya, 07070, Turkey; School of Engineering, Lebanese American University, Byblos, Lebanon.
| | - Seyed Ahmad Shahidi
- Department of Food Science and Technology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Najmeh Zare
- Department of Chemical Engineering and Energy, Quchan University of Technology, Quchan, 9477177870, Iran
| | - Mehdi Baghayeri
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran
| | - Li Fu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, PR China
| | - Sadegh Rostamnia
- Organic and Nano Group (ONG), Department of Chemistry, Iran University of Science and Technology (IUST), PO Box 16846-13114, Tehran, Iran
| | - Jalal Rouhi
- Faculty of Physics, University of Tabriz, Tabriz, 51566, Iran
| | - Saravanan Rajendran
- Faculty of Engineering, Department of Mechanical Engineering, University of Tarapacá, Avda, General Velasquez, 1775, Arica, Chile
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Al-bonayan AM, Hameed A, Alorabi AQ, Alessa H, Aljuhani E, El-Metwaly NM. Novel Copper Oxide Nanostructure Propafenone Voltammetric Sensor. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023. [DOI: 10.1007/s13369-023-07685-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Negahdary M, Akira Ameku W, Gomes Santos B, dos Santos Lima I, Gomes de Oliveira T, Carvalho França M, Angnes L. Recent electrochemical sensors and biosensors for toxic agents based on screen-printed electrodes equipped with nanomaterials. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Sensitive and Selective Voltammetric Sensor Based on Anionic Surfactant-Modified Screen-Printed Carbon for the Quantitative Analysis of an Anticancer Active Fused Azaisocytosine-Containing Congener. Int J Mol Sci 2022; 24:ijms24010564. [PMID: 36614007 PMCID: PMC9820600 DOI: 10.3390/ijms24010564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022] Open
Abstract
3-(4-Nitrophenyl)-8-(2,3-dimethylphenyl)-7,8-dihydroimidazo[2,1-c][1,2,4]triazin-4(6H)-one (NDIT) is one of the most promising candidates for anticancer agents. Hence, a sensitive and selective sodium dodecyl sulfate-modified screen-printed carbon sensor (SPCE/SDS) was used for its quantitative analysis. The SPCE/SDS, in contrast to the SPCE, showed excellent behavior in the electrochemical reduction of NDIT by differential-pulse adsorptive stripping voltammetry (DPAdSV). Cyclic voltammetric (CV) studies reveal an irreversible, two-stage and not purely diffusion-controlled reduction process in 0.01 M HNO3. The sensor was characterized by CV and electrochemical impedance spectroscopy (EIS). Under the optimized conditions (t 45 s, ΔE 175 mV, ν 150 mV/s, and tm 5 ms), the DPAdSV procedure with the SPCE/SDS presented a very wide linear range from 1 to 2000 nM and a low detection limit of 0.29 nM. A 1000-fold excess concentration of potential interferents commonly present in biological samples did not significantly alter the peak current of NDIT. The practical application of the proposed DPAdSV procedure with the SPCE/SDS was successfully checked by analyzing spiked human serum samples.
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Electro-Catalytic Determination of L-Cysteine Using Multi Walled Carbon Nanotubes-Co3O4 Nanocomposite/Benzoylferrocene/Ionic liquid Modified Carbon Paste Electrode. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Beitollahi H, Dourandish Z, Tajik S, Sharifi F, Jahani PM. Electrochemical Sensor Based on Ni-Co Layered Double Hydroxide Hollow Nanostructures for Ultrasensitive Detection of Sumatriptan and Naproxen. BIOSENSORS 2022; 12:bios12100872. [PMID: 36291009 PMCID: PMC9599541 DOI: 10.3390/bios12100872] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/02/2022] [Accepted: 10/06/2022] [Indexed: 06/12/2023]
Abstract
In this work, Ni-Co layered double hydroxide (Ni-Co LDH) hollow nanostructures were synthesized and characterized by X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), and Fourier-transform infrared spectroscopy (FT-IR) techniques. A screen-printed electrode (SPE) surface was modified with as-fabricated Ni-Co LDHs to achieve a new sensing platform for determination of sumatriptan. The electrochemical behavior of the Ni-Co LDH-modified SPE (Ni-CO LDH/SPE) for sumatriptan determination was investigated using voltammetric methods. Compared with bare SPE, the presence of Ni-Co LDH was effective in the enhancement of electron transport rate between the electrode and analyte, as well as in the significant reduction of the overpotential of sumatriptan oxidation. Differential pulse voltammetry (DPV) was applied to perform a quantitative analysis of sumatriptan. The linearity range was found to be between 0.01 and 435.0 μM. The limits of detection (LOD) and sensitivity were 0.002 ± 0.0001 μM and 0.1017 ± 0.0001 μA/μM, respectively. In addition, the performance of the Ni-CO LDH/SPE for the determination of sumatriptan in the presence of naproxen was studied. Simultaneous analysis of sumatriptan with naproxen showed well-separated peaks leading to a quick and selective analysis of sumatriptan. Furthermore, the practical applicability of the prepared Ni-CO LDH/SPE sensor was examined in pharmaceutical and biological samples with satisfactory recovery results.
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Affiliation(s)
- Hadi Beitollahi
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman 7631885356, Iran
| | - Zahra Dourandish
- Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman 76175-133, Iran
| | - Somayeh Tajik
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman 7616913555, Iran
| | - Fatemeh Sharifi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman 7616913555, Iran
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