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Mughal ZUN, Aylaz G, Shaikh H, Memon S, Andac M. Development of a molecularly imprinted polymer on silanized graphene oxide for the detection of 17-estradiol in wastewater. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2024; 96:e11006. [PMID: 38444299 DOI: 10.1002/wer.11006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 03/07/2024]
Abstract
This research article demonstrates the synthesis, characterization, and electrochemical evaluation of a molecularly imprinted polymer (MIP) on the surface of silanized graphene oxide (silanized GO), which is nanostructured and used to quantify 17-estradiol (E2) in wastewater. As characterization methods, X-ray diffraction (XRD), Raman spectroscopy, dynamic scattering light (DSL), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR) were utilized to examine the synthesized GO, silanized GO, MIP-GO composite, and non-imprinted polymer (NIP)-GO (NIP-GO) composite. FTIR results confirmed the successful synthesis of GO composites. Raman study confirmed the synthesis of monolayer silanized GO, MIP-GO composite, and NIP-GO composite. Surface morphology revealed that after polymerization, the surface of silanized GO sheet-like morphology is covered with nanoparticles. Adsorption kinetics studies revealed that adsorption follows the pseudo-second-order kinetics. Further, we studied the performance of a MIP-GO-based sensor by optimizing the effects of pH, scan rate, and incubation period. The linear calibration was achieved between the oxidation peak current and E2 concentration from 0.1 to 0.81 ppm, with a detection limit of 0.037 ppm. The selectivity of the MIP-GO composite was also checked by using other estrogens, and it was found that E2 is 3.3, 0.5, and 1.4 times more selective than equilin, estriol, and estrone, respectively. The composite was successfully applied to the wastewater samples for the detection of E2, and a good percentage of recoveries were achieved. It suggests that the reported composite can be applied to real samples. PRACTITIONER POINTS: An innovative electrochemical sensor was developed for selective detection of 17-estradiol through molecularly imprinted polymer fabricated on the surface of silanized GO (MIP-GO composite). The developed method was comprehensively validated and found to be linear in the range of 0.1 to 0.8 ppm of 17-estradiol, with 0.037 ppm of limit of detection and 0.1 ppm of limit of quantification, respectively. The developed MIP-GO-composite-based electrochemical sensor was found 3.3, 0.5, and 1.4 times more selective for 17-estradiol than equiline, estriol, and estrone, respectively. The applicability of a developed sensor was also checked on wastewater samples, and a good percent recovery was obtained.
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Affiliation(s)
- Zaib Un Nisa Mughal
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Gulgun Aylaz
- Nanotechnology Engineering Department, Faculty of Engineering, Sivas Cumhuriyet University, Sivas, Turkey
| | - Huma Shaikh
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Shahabuddin Memon
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Muge Andac
- Faculty of Engineering, Environmental Engineering Department, Hacettepe University, Ankara, Turkey
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2
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Otaif K, Fouad MM, Rashed NS, Hosni NY, Elsonbaty A, Elgazzar E. Green Prospective Approach of Chromium Zinc Oxide Nanoparticles for Highly Ultrasensitive Electrochemical Detection of Anti-hypotensive Medication in Various Matrices. ACS OMEGA 2023; 8:30081-30094. [PMID: 37636946 PMCID: PMC10448688 DOI: 10.1021/acsomega.3c02381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/30/2023] [Indexed: 08/29/2023]
Abstract
A highly ultrasensitive sensor that relied on Cr/ZnO-NPs was developed to detect etilefrine hydrochloride (ETF) in different matrices via a particular green voltammetric technique. The X-ray diffraction pattern showed the nanomaterials of the polycrystalline hexagonal structure. The energy-dispersive X-ray spectrum approved the presence of Cr3+ inside the host zinc oxide framework. The morphological and topological characteristics were visualized using transmission electron microscopy and atomic force microscopy micrographs describing the nanoparticles in spherical-like shape with large-surface area. The energy gap (Eg) was evaluated from transmittance (T %) and reflectance (R %) spectra within the visible region. The optimization study indicated that the Cr/ZnO-NP/CPE sensor has high sensitivity, thanks to the distinctive physical and chemical properties of the fabricated electrode. A new approach showed a great selectivity for determining ETF in different matrices in the presence of other interferents like levodopa. Under optimal circumstances, the square-wave voltammetry revealed a linear response to ETF from 0.01 to 10 μmol L-1 (r = 0.9996) with quantification and detection limits of 9.11 and 2.97 nmol L-1, respectively. Finally, the proposed approach was effectively applied to estimate ETF in pharmaceutical dosage forms and biological fluids using simple, accurate, and selective electrochemical electrode. The greenness profile assessment of the developed method was performed using the Eco-Scale and green analytical procedure index. These tools indicated that the proposed method is an eco-friendly technique for the determination of ETF in different matrices.
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Affiliation(s)
- Khadejah
D. Otaif
- Department
of Chemistry, Samtah University College, Jazan University, Samtah, Jazan 86736, Saudi Arabia
| | - Manal M. Fouad
- Pharmaceutical
Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza 11787, Egypt
| | - Noha S. Rashed
- Pharmaceutical
Analytical Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City 11765, Cairo, Egypt
| | - Noha Y.Z. Hosni
- Pharmaceutical
Analytical Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City 11765, Cairo, Egypt
| | - Ahmed Elsonbaty
- Pharmaceutical
Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, Badr
City 11829, Cairo, Egypt
| | - Elsayed Elgazzar
- Associate
Professor of Physics, Physics Department, Faculty of Science, Suez Canal University, Ismailia 41511, Egypt
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3
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Nagarajan A, Sethuraman V, Sasikumar R. Non-enzymatic electrochemical detection of creatinine based on a glassy carbon electrode modified with a Pd/Cu 2O decorated polypyrrole (PPy) nanocomposite: an analytical approach. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1410-1421. [PMID: 36826445 DOI: 10.1039/d3ay00110e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The major constraints of standard enzymatic biosensors are poor long-term storage stability and high cost. Hence, there is extensive research towards fabrication of reliable enzymeless biosensors based on nanomaterials. In this paper, we present the development of an enzymeless electrochemical biosensor for highly precise detection of creatinine. This involves the use of a simple yet effective alternative to the commonly utilized Pd/Cu2O/PPy nanocomposite, which was characterized by different analytical methods. The present electrochemical sensor provides a wide detection range (0.1 to 150 μM), low detection limit (0.05 μM) and high sensitivity (0.207 μA), and is capable of detecting the creatinine level in human urine samples, which are inexpensive. The results are reproducible, and the sensor is stable. The sensor demonstrates good electrocatalytic activity and selectivity towards the detection of creatinine in the presence of various other similar biological entities. When compared to other existing counterparts, the electrocatalytic behaviour of the present sensor is comparable, if not better. So, the present electrochemical sensor for creatinine might be employed as a long-term diagnostic alternative.
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Affiliation(s)
- A Nagarajan
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai-600025, Tamil Nadu, India.
| | - V Sethuraman
- Research and Development, New Energy Storage Technology, Lithium-ion Division, Amara Raja Battery Ltd, Karakambadi-517520, Tirupati, Andhra Pradesh, India
| | - R Sasikumar
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai-600025, Tamil Nadu, India.
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Rajeswari B, Sravani B, Cheffena M, Janraj Naik R, Veera Manohara Reddy Y, Madhavi G, Suresh Reddy K, Jong Kim M. Ethylene glycol-assisted synthesis of reduced graphene oxide-supported bimetallic Pt-Co nanoparticles for the ultra-sensitive detection of tert-butyl hydroquinone. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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5
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Xia Z, Zhou Y, Gong Y, Mao P, Zhang N, Yuan C, Xue W. AuNPs and graphdiyne nanocomposite as robust electrocatalyst for methyl parathion detection in real samples. ANAL SCI 2022; 38:1513-1522. [PMID: 36071334 DOI: 10.1007/s44211-022-00184-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/23/2022] [Indexed: 11/28/2022]
Abstract
The present work describes a simple and rapid synthesis method of gold nanoparticles and graphdiyne (AuNPs@GDY) nanocomposites including porous structure. Moreover, the synthesized AuNPs@GDY material was decorated on the glassy carbon electrode (GCE) with a drop coating method to construct a non-enzymatic electrochemical pesticides sensor. The micro-morphology and elemental composition of the materials were characterized by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The electrocatalysis and conductivity of the material were studied with cyclic voltammetry (CV) and impedance method, respectively. The properties of the sensor were investigated by CV and differential pulse voltammetry (DPV). The results showed that AuNPs@GDY exhibited excellent electrocatalytic ability for methyl parathion in a wide linear range (from 0.25 ng/mL to 24.43 μg/mL) and low limit of detection value (6.2 pg/mL). Furthermore, the DPV method used in this paper was accurate and sensitive, and could be used for routine quality control of methyl parathion in kiwi fruit and tomato samples.
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Affiliation(s)
- Zhi Xia
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China
- College of Chemistry and Chemical Engineering, Guizhou University of Engineering Science, Bijie, 551700, People's Republic of China
| | - Yuanxiang Zhou
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Yuchen Gong
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Piao Mao
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Nian Zhang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Chunmei Yuan
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Wei Xue
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research and Development Center for Fine Chemicals, Guizhou University, Guiyang, 550025, People's Republic of China.
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6
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Manjunatha K, Kumara Swamy B, Jayaprakash G, Sharma S, Lalitha P, Vishnumurthy K. Electrochemical determination of paracetamol at Cu doped ZnO/Nanoparticle with TX-100-surfactant MCPE: A cyclic voltammetric technique. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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7
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A novel oral medicated jelly for enhancement of etilefrine hydrochloride bioavailability: In vitro characterization and pharmacokinetic evaluation in healthy human volunteers. Saudi Pharm J 2022; 30:1435-1447. [DOI: 10.1016/j.jsps.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 07/19/2022] [Indexed: 11/21/2022] Open
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8
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Electrochemical Determination of Paracetamol at Cu doped ZnO/Nanoparticle with TX-100-Surfactant MCPE : A Cyclic Voltammetric Technique. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Reddy YVM, Shin JH, Palakollu VN, Sravani B, Choi CH, Park K, Kim SK, Madhavi G, Park JP, Shetti NP. Strategies, advances, and challenges associated with the use of graphene-based nanocomposites for electrochemical biosensors. Adv Colloid Interface Sci 2022; 304:102664. [PMID: 35413509 DOI: 10.1016/j.cis.2022.102664] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/18/2022] [Accepted: 04/04/2022] [Indexed: 12/29/2022]
Abstract
Graphene is an intriguing two-dimensional honeycomb-like carbon material with a unique basal plane structure, charge carrier mobility, thermal conductivity, wide electrochemical spectrum, and unusual physicochemical properties. Therefore, it has attracted considerable scientific interest in the field of nanoscience and bionanotechnology. The high specific surface area of graphene allows it to support high biomolecule loading for good detection sensitivity. As such, graphene, graphene oxide (GO), and reduced GO are excellent materials for the fabrication of new nanocomposites and electrochemical sensors. Graphene has been widely used as a chemical building block and/or scaffold with various materials to create highly sensitive and selective electrochemical sensing microdevices. Over the past decade, significant advancements have been made by utilizing graphene and graphene-based nanocomposites to design electrochemical sensors with enhanced analytical performance. This review focus on the synthetic strategies, as well as the structure-to-function studies of graphene, electrochemistry, novel multi nanocomposites combining graphene, limit of detection, stability, sensitivity, assay time. Finally, the review describes the challenges, strategies and outlook on the future development of graphene sensors technology that would be usable for the internet of things are also highlighted.
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Manohara Reddy YV, Shin JH, Hwang J, Kweon DH, Choi CH, Park K, Kim SK, Madhavi G, Yi H, Park JP. Fine-tuning of MXene-nickel oxide-reduced graphene oxide nanocomposite bioelectrode: Sensor for the detection of influenza virus and viral protein. Biosens Bioelectron 2022; 214:114511. [DOI: 10.1016/j.bios.2022.114511] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 11/30/2022]
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11
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Li Z, Shen F, Mishra RK, Wang Z, Zhao X, Zhu Z. Advances of Drugs Electroanalysis Based on Direct Electrochemical Redox on Electrodes: A Review. Crit Rev Anal Chem 2022; 54:269-314. [PMID: 35575782 DOI: 10.1080/10408347.2022.2072679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The strong development of mankind is inseparable from the proper use of drugs, and the electroanalytical research of drugs occupies an important position in the field of analytical chemistry. This review mainly elaborates the research progress of drugs electroanalysis based on direct electrochemical redox on various electrodes for the recent decade from 2011 to 2021. At first, we summarize some frequently used electrochemical data processing and electrochemical mechanism research derivation methods in the literature. Then, according to the drug therapeutic and application/usage purposes, the research progress of drugs electrochemical analysis is classified and discussed, where we focus on drugs electrochemical reaction mechanism. At the same time, the comparisons of electrochemical sensing performance of the drugs on various electrodes from recent studies are listed, so that readers can more intuitively compare and understand the electroanalytical sensing performance of each modified electrode for each of the drug. Finally, this review discusses the shortcomings and prospects of the drugs electroanalysis based on direct electrochemical redox research.
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Affiliation(s)
- Zhanhong Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Feichen Shen
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai, China
| | - Rupesh K Mishra
- Identify Sensors Biologics at Bindley Bioscience Center, West Lafayette, Indiana, USA
- School of Material Science and Engineering, Purdue University, West Lafayette, Indiana, USA
| | - Zifeng Wang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xueling Zhao
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai, China
| | - Zhigang Zhu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai, China
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12
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Tajik S, Beitollahi H, Shahsavari S, Nejad FG. Simultaneous and selective electrochemical sensing of methotrexate and folic acid in biological fluids and pharmaceutical samples using Fe 3O 4/ppy/Pd nanocomposite modified screen printed graphite electrode. CHEMOSPHERE 2022; 291:132736. [PMID: 34728224 DOI: 10.1016/j.chemosphere.2021.132736] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/23/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
The purpose of this study was to fabricate an electrochemical sensor for the detection of methotrexate and folic acid based on a screen-printed graphite electrode (SPGE) modified with prepared iron oxide (Fe3O4)/polypyrrole (ppy)/Palladium (Pd) nanocomposite. Transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FT-IR) techniques were employed to characterize the Fe3O4/ppy/Pd nanocomposite. The produced modifier was used to induce a remarkable electrocatalytic impact relative to the oxidation of methotrexate, which caused the potential peak shift to a less positive amount (from 800 mV to about 500 mV) and improved the peak current (from 5.3 μA to about 16 μA). Methotrexate peak current was linearly dependent on its concentration from 0.03100.0 μM and the limit of detection (LOD) was estimated at 7.0 nM. The methotrexate and folic acid were co-detected by the proposed sensor. The experimental results indicated that the oxidation peaks of methotrexate and folic acid were separated about 200 mV in phosphate buffer solution (PBS) at pH 7.0. Fe3O4/ppy/Pd/SPGE was successfully able to detect methotrexate and folic acid in pharmaceutical and biological samples with excellent recovery.
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Affiliation(s)
- Somayeh Tajik
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran.
| | - Hadi Beitollahi
- Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
| | - Saeed Shahsavari
- Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Fariba Garkani Nejad
- Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran
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13
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Point of need simultaneous biosensing of pharmaceutical micropollutants with binder free conjugation of manganese stannate micro-rods on reduced graphene oxide in real-time analysis. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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14
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Rabie EM, Shamroukh AA, Khodari M. A Novel Electrochemical Sensor Based on Modified Carbon Paste Electrode with ZnO Nanorods for the Voltammetric Determination of Indole‐3‐acetic Acid in Plant Seed Extracts. ELECTROANAL 2022. [DOI: 10.1002/elan.202100420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- E. M. Rabie
- Chemistry Department Faculty of Science South Valley University 83523 Qena Egypt
| | - A. A. Shamroukh
- Chemistry Department Faculty of Science South Valley University 83523 Qena Egypt
| | - M. Khodari
- Chemistry Department Faculty of Science South Valley University 83523 Qena Egypt
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15
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Sravani B, Kiranmai S, Rajasekhara Reddy G, Park JP, VeeraManohara Reddy Y, Madhavi G. Highly sensitive detection of anti-cancer drug based on bimetallic reduced graphene oxide nanocomposite. CHEMOSPHERE 2022; 287:132281. [PMID: 34826940 DOI: 10.1016/j.chemosphere.2021.132281] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/27/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Herein, we describe a high-performance electrochemical sensor for the detection of regorafenib (REG) using bimetallic Pd-Ru nanoparticles anchored on pomegranate peel extract (PPE) derived reduced graphene oxide (Pd-Ru/rGO). PPE was employed to neutralize the extremely acidic graphene then cast-off along with the metal precursor for the duration of the chemical reduction to accomplish well dispersed Pd-Ru nanoparticles. Bimetallic Pd-Ru/rGO nanocomposites were synthesized using a facile chemical reduction method. Under optimal conditions, based on the differential pulse voltammetric studies it has been confirmed that the fabricated sensors has good electrocatalytic activity toward the detection of REG, spanning over the linear dynamic range of 0.5-300 nM. Moreover, the sensor exhibited a low limit of detection of 1.6 nM and a limit of quantification of 4.8 nM. The electrochemical sensor unveiled admirable selectivity and sensitivity, reproducibility, and repeatability. The fabricated sensor was suitable for real sample analysis (pharmaceutical tablet, human blood plasm, wastewater) with satisfactory recovery. The strategy presented herein can be employed in the development of electrochemical sensors for other target analytes.
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Affiliation(s)
- Bathinapatla Sravani
- Nanoelectrochemistry Lab, Department of Chemistry, Υogi Vemana University, Kadapa, 516005, India
| | - S Kiranmai
- Electrochemical Research Lab, Department of Chemistry, Sri Venkateswara University, Tirupati, 517502, India
| | | | - Jong Pil Park
- Department of Food Science and Technology, Chung - Ang University, 4726, Seodongdaero, Anesong, 17546, Republic of Korea.
| | - Y VeeraManohara Reddy
- Electrochemical Research Lab, Department of Chemistry, Sri Venkateswara University, Tirupati, 517502, India; Department of Food Science and Technology, Chung - Ang University, 4726, Seodongdaero, Anesong, 17546, Republic of Korea.
| | - G Madhavi
- Electrochemical Research Lab, Department of Chemistry, Sri Venkateswara University, Tirupati, 517502, India.
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Chen J, Wang J, Ye R, Huang D, Chen S. An electrochemical sensor based on a glassy carbon electrode modified with sandwich structured ZIF-67@rGO for bisphenol A measurement. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:5777-5786. [PMID: 34825246 DOI: 10.1039/d1ay01542g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The low conductivity of metal-organic frameworks seriously impedes their electrocatalytic performance. In this study, we prepared a fabricated sandwich structure composed of a Co-based zeolitic imidazolate framework (ZIF-67) and reduced graphene oxide (rGO) through a facile and simple one-pot hydrothermal reaction. This framework of nanocomposites, which are modified with a glassy carbon electrode, constructed a bisphenol A (BPA) electrochemical sensor for the first time. Operational parameters such as pH, electrolytes, the amount of modifiers, deposition potentials and deposition time were optimised for the sensitive detection of BPA. The performance of electrodes was evaluated by cyclic voltammetry, electrochemical impedance spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction and transmission electron microscopy. With differential pulse voltammetry, the detection concentration of BPA ranged from 0.05 μmol L-1 to 100 μmol L-1. The results revealed that the hierarchical nanocomposites demonstrated better electrocatalytic performance with large electrochemically active surface areas, high sensitivity and a low limit of detection (5.2 nmol L-1), compared with a physical mixture of ZIF-67 and rGO at the same ratio. These impressive features originate from the synergistic effects of ZIF-67 and rGO. This study presents a new strategy using metal-organic framework composite materials for the sensitive detection of BPA.
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Affiliation(s)
- Jinyang Chen
- Fujian Polytechnic Normal University, Food Flexible Packaging Technology Fujian University Engineering Research Center, Fuqing, Fujian 350300, China.
- Fujian Normal University, Collge of Life sciences, Fuzhou 350117, Fujian, China
| | - Jiamei Wang
- Fujian Polytechnic Normal University, Food Flexible Packaging Technology Fujian University Engineering Research Center, Fuqing, Fujian 350300, China.
| | - Ruihong Ye
- Fujian Polytechnic Normal University, Food Flexible Packaging Technology Fujian University Engineering Research Center, Fuqing, Fujian 350300, China.
| | - Dihui Huang
- Fujian Polytechnic Normal University, Food Flexible Packaging Technology Fujian University Engineering Research Center, Fuqing, Fujian 350300, China.
| | - Sheng Chen
- Fujian Polytechnic Normal University, Food Flexible Packaging Technology Fujian University Engineering Research Center, Fuqing, Fujian 350300, China.
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Lu X, Zhang F, Sun Y, Yu K, Guo W, Qu F. A 2D/2D NiCo-MOF/Ti 3C 2 heterostructure for the simultaneous detection of acetaminophen, dopamine and uric acid by differential pulse voltammetry. Dalton Trans 2021; 50:16593-16600. [PMID: 34746941 DOI: 10.1039/d1dt03208a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 2D/2D NiCo-MOF/Ti3C2 heterojunction is constructed as a non-enzymatic biosensor for the simultaneous electrochemical detection of acetaminophen (AP), dopamine (DA), and uric acid (UA) via differential pulse voltammetry. Benefiting from the synergistic effects of the high electrocatalytic activity of NiCo-MOF, the outstanding conductivity of Ti3C2, and the improved specific surface area of NiCo-MOF/Ti3C2, NiCo-MOF/Ti3C2 displays high sensing performance toward AP (0.01-400 μM), DA (0.01-300 μM), and UA (0.01-350 μM) in 0.1 M phosphate buffer (PB, pH 7.4) at working potentials of 0.346 V vs. SCE for AP, 0.138 V vs. SCE for DA, and 0.266 V vs. SCE for UA. Furthermore, the well-separated oxidation peak potentials allow for the simultaneous detection of the analytes, with detection limits of 0.008, 0.004, and 0.006 μM (S/N = 3), respectively. As a result of its considerable reproducibility and anti-interference and anti-fouling properties, NiCo-MOF/Ti3C2 was also developed into a practical sensing platform to detect AP, DA, and UA in serum and urine, presenting excellent recoveries of 98.1-102.2 %.
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Affiliation(s)
- Xing Lu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Harbin Normal University, Harbin 150025, P. R. China.
| | - Feng Zhang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Harbin Normal University, Harbin 150025, P. R. China. .,Key Laboratory of Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, P. R. China
| | - Yimeng Sun
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Harbin Normal University, Harbin 150025, P. R. China.
| | - Kai Yu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Harbin Normal University, Harbin 150025, P. R. China.
| | - Wei Guo
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Harbin Normal University, Harbin 150025, P. R. China.
| | - Fengyu Qu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Harbin Normal University, Harbin 150025, P. R. China. .,Key Laboratory of Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, P. R. China
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18
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Nehru R, Hsu YF, Wang SF, Dong CD, Govindasamy M, Habila MA, AlMasoud N. Graphene oxide@Ce-doped TiO 2 nanoparticles as electrocatalyst materials for voltammetric detection of hazardous methyl parathion. Mikrochim Acta 2021; 188:216. [PMID: 34052922 DOI: 10.1007/s00604-021-04847-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/05/2021] [Indexed: 01/09/2023]
Abstract
A sensitive voltammetric sensor has been developed for hazardous methyl parathion detection (MP) using graphene oxide@Ce-doped TiO2 nanoparticle (GO@Ce-doped TiO2 NP) electrocatalyst. The GO@Ce-doped TiO2 NPs were prepared through the sol-gel method and characterized by various physicochemical and electrochemical techniques. The GO@Ce-doped TiO2 NP-modified glassy carbon electrode (GCE) addresses excellent electrocatalytic activity towards MP detection for environmental safety and protection. The developed strategy of GO@Ce-doped TiO2 NPs at GCE surfaces for MP detection achieved excellent sensitivity (2.359 μA μM-1 cm-2) and a low detection limit (LOD) 0.0016 μM with a wide linear range (0.002 to 48.327 μM). Moreover, the fabricated sensor shows high selectivity and long-term stability towards MP detection; this significant electrode further paves the way for real-time monitoring of environmental quantitative samples with satisfying recoveries.
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Affiliation(s)
- Raja Nehru
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan.,Sustainable Environmental Research Center, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Yung-Fu Hsu
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan.
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan.
| | - Cheng-Di Dong
- Sustainable Environmental Research Center, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan.
| | - Mani Govindasamy
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Mohamed A Habila
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Najla AlMasoud
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
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19
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An ultra-sensitive rifampicin electrochemical sensor based on titanium nanoparticles (TiO2) anchored reduced graphene oxide modified glassy carbon electrode. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125533] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Gopi PK, Kesavan G, Chen SM, Ravikumar CH. Cadmium sulfide quantum dots anchored on reduced graphene oxide for the electrochemical detection of metronidazole. NEW J CHEM 2021. [DOI: 10.1039/d0nj05501h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this research, the metal–organic-based synthesis of cadmium sulfide quantum dots (CdS QDs) was performed.
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Affiliation(s)
- Praveen Kumar Gopi
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- Republic of China
| | - Ganesh Kesavan
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- Republic of China
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 106
- Republic of China
| | - Chandan Hunsur Ravikumar
- Pilot Plant Development and Training Institute
- King Mongkut's University of Technology Thonburi
- Bangkok 10150
- Thailand
- Centre for Nano and Material Sciences
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21
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Dong Y, Liu J, Zheng J. A sensitive dopamine electrochemical sensor based on hollow zeolitic imidazolate framework. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125617] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Li Y, Ma Y, Zhang Y, Wang X, Bai F. Preparation of N-acetyl-para-aminophenol via a flow route of a clean amination and acylation of p-nitrophenol catalyzing by core-shell Cu2O@CeO2. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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23
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Synthesis of a magnetic sorbent and its application in extraction of different pesticides from water, fruit, and vegetable samples prior to their determination by gas chromatography-tandem mass spectrometry. J Chromatogr A 2020; 1635:461718. [PMID: 33229005 DOI: 10.1016/j.chroma.2020.461718] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/10/2020] [Accepted: 11/10/2020] [Indexed: 11/20/2022]
Abstract
In this investigation, an efficient sorbent based on Fe3O4@polyphenols magnetic nanoparticles has been prepared using the extract of Mentha piperita leaves for the first time. The main purposes of this study were synthesis of economically affordable and environmentally friendly sorbent using the extract of Mentha piperita leaves and evaluating its application as a sorbent in magnetic solid phase extraction. The functional groups, magnetic property, size, and shape of the synthesized sorbent were characterized. The sorbent was utilized for the extraction and preconcentration of various pesticides (chlorpyrifos, fenazaquin, penconazole, diniconazole, oxadiazon, haloxyfop-methyl, hexaconazole, clodinafop-propargyl, tebuconazole, and fenoxaprop-p-ethyl) from vegetable, fruit, and water samples. After magnetic solid phase extraction, a dispersive liquid-liquid microextraction method was done to achieve low detection limits. The enriched pesticides were monitored by gas chromatography-tandem mass spectrometry. The synthesized sorbent was characterized by Fourier transform infrared, scanning electron microscopy, energy-dispersive x-ray spectroscopy, x-ray diffraction, and vibrating sample magnetometer techniques, which confirmed the successful synthesis of the magnetic nanoparticles. The effective parameters such as the sorbent weight, ionic strength, pH, vortex time, and kind and volume of elution and extraction solvents were studied. Under optimum extraction conditions, the method showed broad linear ranges (0.05-1000 µg L-1) with low limits of detection (0.27-4.13 ng L-1) and quantification (0.91-13.8 ng L-1). Extraction recoveries and enrichment factors were in the ranges of 54-89 % and 491-811, respectively.
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24
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Highly sensitive detection of dopamine based on hierarchical nanoporous NiCoO2/Ni composite. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Edward Sekhosana K, Nkhahle R, Nyokong T. Analytical Detection and Electrocatalysis of Paracetamol in Aqueous Media Using Rare‐Earth Double‐Decker Phthalocyaninato Chelates as Electrochemically Active Materials. ChemistrySelect 2020. [DOI: 10.1002/slct.202002268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kutloano Edward Sekhosana
- Nanotechnology and Water Sustainability (NanoWS) Research Unit, College of ScienceEngineering and Technology (CSET), University of South Africa, Corner of Christiaan De Wet and Pioneer Avenue, Florida Roodepoort 1709 South Africa
- Institute for Nanotechnology and InnovationDepartment of Chemistry, Rhodes University PO Box 94 Grahamstown, 6140 South Africa
| | - Reitumetse Nkhahle
- Institute for Nanotechnology and InnovationDepartment of Chemistry, Rhodes University PO Box 94 Grahamstown, 6140 South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology and InnovationDepartment of Chemistry, Rhodes University PO Box 94 Grahamstown, 6140 South Africa
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26
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Fredj Z, Ben Ali M, Abbas MN, Dempsey E. Simultaneous determination of ascorbic acid, uric acid and dopamine using silver nanoparticles and copper monoamino-phthalocyanine functionalised acrylate polymer. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3883-3891. [PMID: 32716418 DOI: 10.1039/d0ay01183e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A silver nanoparticle and copper monoamino-phthalocyanine-acrylate (Cu-MAPA) polymer modified glassy carbon electrode was developed for the simultaneous detection of dopamine (DOP), ascorbic acid (AA) and uric acid (UA) using voltammetric techniques. Silver nanoparticles (AgNPs) were synthesised according to the citrate reduction method. Following synthesis and characterisation the copper phthalocyanine polymer was co-deposited with AgNPs realising a surface with enhanced electron transfer which lowered the overpotential required for analyte electro-oxidation. Differential pulse voltammetry (DPV) was employed for the simultaneous determination of dopamine (DOP), ascorbic acid (AA) and uric acid (UA) at AgNP/Cu-MAPA modified surfaces at <μM ranges. The peak potential separations for DOP-AA and DOP-UA were ca. 181 mV and 168 mV respectively. The chemical sensor was also capable of individual quantitation of DOP, UA and AA with detection limits of 0.7, 2.5 and 5.0 nM respectively. Overall, the approach realised a simple and effective electrode modifier for the selective discrimination and quantitation of DOP in the presence of physiological levels of AA and UA.
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Affiliation(s)
- Zina Fredj
- University of Sousse, Higher Institute of Applied Sciences and Technology of Sousse, GREENS-ISSAT, 4003 Ibn Khaldoun Sousse, Tunisia
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27
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Nehru R, Hsu YF, Wang SF. Electrochemical determination of caffeic acid in antioxidant beverages samples via a facile synthesis of carbon/iron-based active electrocatalyst. Anal Chim Acta 2020; 1122:76-88. [PMID: 32503746 DOI: 10.1016/j.aca.2020.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 12/14/2022]
Abstract
An electrochemical method has described for the voltammetric determination and oxidation of caffeic acid (CA) at a glassy carbon electrode (GCE) modified carbon/iron-based active catalyst as a sensing platform. In this study, we have developed a highly sensitive electrochemical CA sensor with f-MWCNTs/α-NaFeO2 composite, which was developed by a simple ultrasonication method. The microstructural features of the f-MWCNTs/α-NaFeO2 composite characterized by different physicochemical and analytical techniques. Under the optimized condition, the developed sensor archive the ultra-sensitivity (44.6859 μA μM-1cm-2) at a lower concentration with excellent linearity (R2 = 0.9943) and which shows low detection limit (LOD = 0.002 μM) and Limit of quantification (LOQ = 0.0068 μM) by using differential pulse voltammetry (DPV) technique. The suggested sensor may improve the effective and efficient platform to the determination of CA in the healthcare system.
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Affiliation(s)
- Raja Nehru
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Rd, Taipei, 10608, Taiwan.
| | - Yung-Fu Hsu
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Rd, Taipei, 10608, Taiwan.
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, 1, Sec. 3, Chung-Hsiao E. Rd, Taipei, 10608, Taiwan.
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28
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Ibrahim M, Ibrahim H, Almandil NB, Sayed MA, Kawde A, Aldaqdouq Y. A Novel Platform Based on Au−CeO
2
@MWCNT Functionalized Glassy Carbon Microspheres for Voltammetric Sensing of Valrubicin as Bladder Anticancer Drug and its Interaction with DNA. ELECTROANAL 2020. [DOI: 10.1002/elan.202060125] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohamed Ibrahim
- Department of Clinical Pharmacy Research Institute for Research and Medical Consultations Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
| | - Hossieny Ibrahim
- Chemistry Department Faculty of Science Assiut University Assiut Egypt
| | - Noor B. Almandil
- Department of Clinical Pharmacy Research Institute for Research and Medical Consultations Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
| | - Marwa A. Sayed
- Department of Industrial Pharmacy Faculty of Pharmacy Assiut University Assiut 71526 Egypt
| | - Abdel‐Nasser Kawde
- Chemistry Department College of Sciences King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Yaqeen Aldaqdouq
- College of Clinical Pharmacy Imam Abdulrahman Bin Faisal University P.O. Box 1982 Dammam 31441 Saudi Arabia
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29
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Tawade AK, Kamble BB, Sharma KKK, Tayade SN. Simultaneous electrochemical investigations of dopamine and uric acid by in situ amino functionalized reduced grahene oxide. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2806-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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30
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Xu S, Dai B, Zhao W, Jiang L, Huang H. Electrochemical detection of β-lactoglobulin based on a highly selective DNA aptamer and flower-like Au@BiVO 4 microspheres. Anal Chim Acta 2020; 1120:1-10. [PMID: 32475386 DOI: 10.1016/j.aca.2020.04.066] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/23/2020] [Accepted: 04/26/2020] [Indexed: 12/18/2022]
Abstract
Beta-lactoglobulin is a natural milk protein and the main cause of infant milk allergy. In this work, a sensitive, selective and inexpensive electrochemical biosensor for the detection of β-lactoglobulin was developed. In this sensor, a DNA aptamer was used instead of an expensive antibody as the recognition group highly selective for β-lactoglobulin. The flower-like BiVO4 microspheres were firstly found to have peroxidase mimic catalytic activity and used to amplify the electrochemical signal. The aptamer can bind β-lactoglobulin and fall off from the working electrode, after which the DNA2/Au/BiVO4 probe can be fixed to the DNA1/AuNPs/ITO working electrode by the hybridization of DNA2 with DNA1. Therefore, a higher concentration of β-lactoglobulin leads to increased fabrication of the DNA2/Au/BiVO4 probe on the surface of the working electrode, and thereby increases the electrochemical signal. This electrochemical biosensor exhibited a wide detection range from 0.01 to 1000 ng mL-1, with a limit of detection (LOD) of 0.007 ng mL-1, which indicates a good potential application in the field of food analysis.
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Affiliation(s)
- Shengpan Xu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, 211800, PR China; Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian, Jiangsu, 223300, PR China
| | - Benlin Dai
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian, Jiangsu, 223300, PR China
| | - Wei Zhao
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University, Huaian, Jiangsu, 223300, PR China
| | - Ling Jiang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu, 211800, PR China.
| | - He Huang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu, 211800, PR China.
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31
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Qi H, Song J, Fu Y, Wu X, Qi H. Highly dispersive Pt-Pd nanoparticles on graphene oxide sheathed carbon fiber microelectrodes for electrochemical detection of H 2O 2 released from living cells. NANOTECHNOLOGY 2020; 31:135503. [PMID: 31825903 DOI: 10.1088/1361-6528/ab60ce] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report a facile strategy for the synthesis of surfactant-free, small and highly dispersive Pt-Pd nanoparticles on graphene oxide (Pt-Pd NPs/GO) by an electroless deposition method, which is sheathed on carbon fiber microelectrodes (CFMs) as an electrochemical sensing platform for highly sensitive and selective detection of hydrogen peroxide (H2O2) released from the living cells. GO serves as the reducing agent and stabilizer for electroless deposition of Pd NPs on the surface of GO owing to its low work function (4.38 eV) and highly conjugated electronic structure. The obtained Pd NPs/GO have a relatively high work function (4.64 eV), and thereby could be used as stabilizer for synthesis of surfactant-free, small and highly dispersive Pt-Pd NPs/GO by chemical reduction of K2PtCl4. The obtained Pt-Pd NPs have a uniform size of 4.0 ± 0.6 nm on the surface of GO. Moreover, the Pt-Pd NPs/GO sheathed CFMs exhibit an excellent electrocatalytic activity for the reduction of H2O2 with a low detection limit of 0.3 μM and good selectivity. These good properties enable the modified microelectrode to detect the H2O2 released from living cells.
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Affiliation(s)
- Hetong Qi
- Institute of Analytical Science, Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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32
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Wang Y, Meng XN, Cao JL. Rapid detection of low concentration CO using Pt-loaded ZnO nanosheets. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:120944. [PMID: 31382132 DOI: 10.1016/j.jhazmat.2019.120944] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/18/2019] [Accepted: 07/27/2019] [Indexed: 06/10/2023]
Abstract
Unloaded and Pt-loaded ZnO nanosheets with 120-170 nm sizes were successfully synthesized by a facile one-pot hydrothermal route followed by a calcination treatment. The as-synthesized samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). It can be clearly observed that Pt nanoparticles with the diameter of 3-5 nm were uniformly loaded on the surface of ZnO nanosheets. A contrastive study based on CO gas sensing performance of bare ZnO and Pt/ZnO was carried out. According to the measurement results, the loading of Pt remarkably upgraded the sensing capability toward CO. The 0.50 at.% Pt/ZnO based gas sensor exhibited an obvious response value of 3.57 toward 50 ppm CO and fast response/recovery time (6/19 s). Besides, the detection limit was as low as 0.10 ppm and the optimal operating temperature was decreased from 210 °C to 180 °C. The enhanced CO sensing performance by Pt nanoparticles could be attributed to the combination of chemical sensitization and electronic sensitization. The 0.50 at.% Pt/ZnO is an efficient sensor material for rapidly detecting low-concentration CO.
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Affiliation(s)
- Yan Wang
- The Collaboration Innovation Center of Coal Safety Production of Henan Province, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, PR China
| | - Xiao-Ning Meng
- The Collaboration Innovation Center of Coal Safety Production of Henan Province, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, PR China
| | - Jian-Liang Cao
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, PR China.
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33
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Nehru R, Gopi PK, Chen SM. Enhanced sensing of hazardous 4-nitrophenol by a graphene oxide–TiO2 composite: environmental pollutant monitoring applications. NEW J CHEM 2020. [DOI: 10.1039/c9nj06176b] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The accurate detection of hazardous 4-nitrophenol (4-NP) is deemed essential for the environment and human health.
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Affiliation(s)
- Raja Nehru
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Praveen Kumar Gopi
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 10608
- Taiwan
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology
- National Taipei University of Technology
- Taipei 10608
- Taiwan
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34
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Koçak ÇC, Koçak S. Enhanced Electrochemical Determination of Catechol and Hydroquinone Based on Pd Nanoparticles/Poly(Taurine) Modified Glassy Carbon Electrode. ELECTROANAL 2019. [DOI: 10.1002/elan.201900500] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Süleyman Koçak
- Department of Chemistry, Science and Art FacultyManisa Celal Bayar University Manisa 45040 Turkey
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35
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Madhuri C, Manohara Reddy YV, Prabhakar Vattikuti S, Švorc Ľ, Shim J, Madhavi G. Trace-level determination of amlodipine besylate by immobilization of palladium-silver bi-metallic nanoparticles on reduced graphene oxide as an electrochemical sensor. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113259] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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36
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Venkateswarlu S, Venu M, Reddy YVM, Sravani B, Mallikarjuna K, Yoon M, Madhavi G. Facile Preparation of Ionic Liquid‐coated Copper Nanowire‐modified Carbon Paste Electrode for Electrochemical Detection of Etilefrine Drug. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sada Venkateswarlu
- Department of NanochemistryGachon University Sungnam 13120 Republic of Korea
| | - Manthrapudi Venu
- Department of ChemistrySri Venkateswara University Tirupati India
| | | | | | - K. Mallikarjuna
- School of Materials Science and EngineeringYeungnam University Gyeongsan 712749 Republic of Korea
| | - Minyoung Yoon
- Department of NanochemistryGachon University Sungnam 13120 Republic of Korea
| | - G. Madhavi
- Department of ChemistrySri Venkateswara University Tirupati India
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37
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Facile decoration of graphene oxide with Cu(II)/1H-benzotriazole complex via π–π interaction for sensitive determination of hydrogen peroxide and hydroxylamine. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01653-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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38
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Do Carmo DR, da Silveira TFS. A New Composite Based on Electroactive Zirconium Phosphate: Morfology, Structure and Their Behavior as a Voltammetric Sensor in the Ascorbic Acid Detection. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01084-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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39
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Zhu J, Jia TT, Li JJ, Li X, Zhao JW. Plasmonic spectral determination of Hg(II) based on surface etching of Au-Ag core-shell triangular nanoplates: From spectrum peak to dip. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 207:337-347. [PMID: 30267978 DOI: 10.1016/j.saa.2018.09.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/20/2018] [Accepted: 09/22/2018] [Indexed: 06/08/2023]
Abstract
In this work, we develop a simple and selective sensing method for the detection of mercury ions based on surface plasmon resonance (SPR) spectrum change of Au-Ag core-shell triangular nanoplates. When the concentration of mercury is increased, the etching-induced change of particle size and shape also leads to the decrease of the absorption peak at the fixed wavelength, until a spectrum dip takes place. This spectral change of "peak-to-dip" greatly enlarges the detection range of mercury ions, which could be fine tuned by changing the initial thickness of the Ag coating. Under optimal conditions, the decrease of the logarithmic absorption intensity has a good linear response with the concentration of mercury ions increasing from 10 to 1000 μM, and the limit of detection (LOD) is 0.88 μM. Interference studies and real samples test indicate that, this new sensing method has a good selection for mercury ions and can be practically used in lake water. This work shows the surface etching-induced SPR shift can also leads to the intensity change with "peak-to-dip" fashion, which greatly enlarge the concentration range of the detection and could be widely applied in the spectroscopy sensing based on SPR.
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Affiliation(s)
- Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Tian-Tian Jia
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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Ansari S, Ansari MS, Satsangee S, Jain R. WO3 decorated graphene nanocomposite based electrochemical sensor: A prospect for the detection of anti-anginal drug. Anal Chim Acta 2019; 1046:99-109. [DOI: 10.1016/j.aca.2018.09.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/14/2018] [Accepted: 09/13/2018] [Indexed: 01/02/2023]
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Venu M, Venkateswarlu S, Reddy YVM, Seshadri Reddy A, Gupta VK, Yoon M, Madhavi G. Highly Sensitive Electrochemical Sensor for Anticancer Drug by a Zirconia Nanoparticle-Decorated Reduced Graphene Oxide Nanocomposite. ACS OMEGA 2018; 3:14597-14605. [PMID: 30555980 PMCID: PMC6289492 DOI: 10.1021/acsomega.8b02129] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/24/2018] [Indexed: 05/03/2023]
Abstract
Because of their large surface area and conductivity, some inorganic materials have emerged as good candidates for the trace-level detection of pharmaceutical drugs. In the present work, we demonstrate the detection of an anticancer drug (regorafenib, REG) by using an electrochemical sensor based on a nanocomposite material. We synthesized a zirconia-nanoparticle-decorated reduced graphene oxide composite (ZrO2/rGO) using a one-pot hydrothermal method. Reduction of the graphene oxide supports of the Zr2+ ions with hydrazine hydrate helped in preventing the agglomeration of the zirconia nanoparticles and in obtaining an excellent electrocatalytic response of the nanostructure ZrO2/rGO-based electrochemical sensor. Structural and morphological characterization of the nanostructure ZrO2/rGO was performed using various analytical methods. A novel regorafenib (REG) electrochemical sensor was fabricated by immobilizing the as-prepared nanostructure ZrO2/rGO on to a glassy carbon electrode (GCE). The resulting ZrO2/rGO/GCE could be used for the rapid and selective determination of REG in the presence of ascorbic acid and uric acid. The ZrO2/rGO/GCE showed a linear response for the REG analysis in the dynamic range 11-343 nM, with a remarkable lower detection limit and limit of quantifications of 17 and 59 nM, respectively. The newly developed sensor was used for the accurate determination of REG in both serum samples and pharmaceutical formulations, with satisfactory results.
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Affiliation(s)
- Manthrapudi Venu
- Electrochemical
Research Laboratory, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India
| | - Sada Venkateswarlu
- Department of Nanochemistry and Department of Chemical
and Biological Engineering, Gachon University, Sungnam 13120, Republic
of Korea
| | - Yenugu Veera Manohara Reddy
- Electrochemical
Research Laboratory, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India
| | - Ankireddy Seshadri Reddy
- Department of Nanochemistry and Department of Chemical
and Biological Engineering, Gachon University, Sungnam 13120, Republic
of Korea
| | - Vinod Kumar Gupta
- Department
of Applied Chemistry, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa
- Department
of Biological Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Minyoung Yoon
- Department of Nanochemistry and Department of Chemical
and Biological Engineering, Gachon University, Sungnam 13120, Republic
of Korea
| | - Gajulapalli Madhavi
- Electrochemical
Research Laboratory, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India
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Arancibia V, Penagos-Llanos J, Nagles E, García-Beltrán O, Hurtado JJ. Development of a microcomposite with single-walled carbon nanotubes and Nd 2O 3 for determination of paracetamol in pharmaceutical dosage by adsorptive voltammetry. J Pharm Anal 2018; 9:62-69. [PMID: 30740259 PMCID: PMC6355469 DOI: 10.1016/j.jpha.2018.11.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 11/02/2022] Open
Abstract
This study presents for the first time a new composite of carbon paste (CP), single-walled carbon nanotubes (SWCNTs) and Nd2O3 (NdOX). This versatile composite (NdOX-SWCNT/CPE) was applied to the oxidation of paracetamol (PCM). The newly formed surface was characterized by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The results showed greater conductivity and a higher surface area for the composite than those of the carbon paste alone. Moreover, the anodic peak currents for PCM increased from 1.6 to 3.6 µA with CPE and NdOX-SWCNT/CPE, indicating an increase of nearly 51.0% for the anodic peak current. On the other hand, the anodic peak potentials shifted from 0.67 to 0.57 V. The detection limits were 0.05 µmol/L with NdOX-SWCNT/CPE and 0.50 µmol/L with SWCNT/CPE. The relative standard deviations (RSDs) were 1.5% (n = 7). The accuracy and interference of the methods were evaluated with a urine chemistry control spiked with known quantities of PCM, uric acid, dopamine, ascorbic acid, caffeine, acetylsalicylic acid, tartrazine, sunset yellow, allure red, rutin, morin and metal ions. Finally, the novelty and usefulness of the composite were evaluated to quantify PCM in pharmaceutical dosage forms such as tablets, powders and syrups for children.
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Affiliation(s)
- Verónica Arancibia
- Pontificia Universidad Católica de Chile, Facultad de Química, Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Johisner Penagos-Llanos
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, 730001 Ibagué, Colombia
| | - Edgar Nagles
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, 730001 Ibagué, Colombia
| | - Olimpo García-Beltrán
- Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Carrera 22 Calle 67, 730001 Ibagué, Colombia
| | - John J Hurtado
- Departamento de Química, Universidad de los Andes, Carrera 1 No. 18A-12, Bogotá, Colombia
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Mallikarjuna K, Veera Manohara Reddy Y, Sravani B, Madhavi G, Kim H, Agarwal S, Gupta VK. Simple synthesis of biogenic Pd Ag bimetallic nanostructures for an ultra-sensitive electrochemical sensor for sensitive determination of uric acid. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.05.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Veera Manohara Reddy Y, Sravani B, Agarwal S, Gupta VK, Madhavi G. Electrochemical sensor for detection of uric acid in the presence of ascorbic acid and dopamine using the poly(DPA)/SiO 2 @Fe 3 O 4 modified carbon paste electrode. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.059] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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45
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Facile one pot synthesis of bimetallic Pd-Ag/reduced graphene oxide nanocomposite as an electrochemical sensor for sensitive detection of anti-hypotensive drug. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.03.032] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Zhang X, Wang Y, Ning X, Li L, Chen J, Shan D, Gao R, Lu X. Three-dimensional porous self-assembled chestnut-like nickel-cobalt oxide structure as an electrochemical sensor for sensitive detection of hydrazine in water samples. Anal Chim Acta 2018; 1022:28-36. [PMID: 29729735 DOI: 10.1016/j.aca.2018.03.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/09/2018] [Accepted: 03/19/2018] [Indexed: 10/17/2022]
Abstract
Three-dimensional NiCo2O4 is a kind of superior sensing material owing to its high electron transfer capability, large available surface area and numbers of active sites. In this work, NiCo2O4 of the three-dimensional chestnut-like structure were easily achieved through a one step hydrothermal process. Afterwards, the morphology and structure were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). Based on the three-dimensional porous chestnut-like NiCo2O4, an electrochemical sensor for hydrazine (N2H4) detection is fabricated. This electrochemical platform can realize good selectivity, excellent stability, high sensitivity (∼2154.4 μA mM-1 cm-2), and low detection limit (0.3 μM), as well as a wide linear range from 1 μM to 1096 μM. The synergistic effect of nickel-cobalt in such mixed transition metal oxides which Co in Co3O4 is partially replaced by Ni are beneficial for enhancing sensing properties. This study proves that three-dimensional porous chestnut-like NiCo2O4 is electrochemically active for catalytic performance which is particular and promising material for good application in the practical detection of N2H4.
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Affiliation(s)
- Xiaohui Zhang
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China
| | - Yanfeng Wang
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China
| | - Xingming Ning
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin, 300072, PR China
| | - Linfang Li
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China
| | - Jing Chen
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China
| | - Duoliang Shan
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China
| | - Ruiqin Gao
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China
| | - Xiaoquan Lu
- Key Laboratory Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, PR China; Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin, 300072, PR China.
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Veera Manohara Reddy Y, Sravani B, Maseed H, Łuczak T, Osińska M, SubramanyamSarma L, Srikanth VVSS, Madhavi G. Ultrafine Pt–Ni bimetallic nanoparticles anchored on reduced graphene oxide nanocomposites for boosting electrochemical detection of dopamine in biological samples. NEW J CHEM 2018. [DOI: 10.1039/c8nj03894e] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present report demonstrates the development of a Pt–Ni/rGO composite electrochemical sensor for the detection of dopamine.
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Affiliation(s)
- Y. Veera Manohara Reddy
- Electrochemical Research Laboratory
- Department of Chemistry
- Sri Venkateswara University
- Tirupati – 517502
- India
| | - Bathinapatla Sravani
- Nanoelectrochemistry Laboratory
- Department of Chemistry
- Yogi Vemana University
- Kadapa-516380
- India
| | - Hussen Maseed
- School of Engineering Science and Technology
- University of Hyderabad
- India
| | - T. Łuczak
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan
- 61-614 Poznan
- Poland
| | - M. Osińska
- Poznan University of Technology
- Institute of Chemistry and Technical Electrochemistry
- 60-965 Poznan
- Poland
| | - L. SubramanyamSarma
- Nanoelectrochemistry Laboratory
- Department of Chemistry
- Yogi Vemana University
- Kadapa-516380
- India
| | | | - G. Madhavi
- Electrochemical Research Laboratory
- Department of Chemistry
- Sri Venkateswara University
- Tirupati – 517502
- India
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