1
|
Torrinha Á, Tavares M, Dibo V, Delerue-Matos C, Morais S. Carbon Fiber Paper Sensor for Determination of Trimethoprim Antibiotic in Fish Samples. SENSORS (BASEL, SWITZERLAND) 2023; 23:3560. [PMID: 37050620 PMCID: PMC10099197 DOI: 10.3390/s23073560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
The increase in anthropogenic pollution raises serious concerns regarding contamination of water bodies and aquatic species with potential implications on human health. Pharmaceutical compounds are a type of contaminants of emerging concern that are increasingly consumed and, thus, being frequently found in the aquatic environment. In this sense, an electrochemical sensor based on an unmodified and untreated carbon fiber paper (CPS-carbon paper sensor) was simply employed for the analysis of trimethoprim antibiotic in fish samples. First, the analytical conditions were thoroughly optimized in order for the CPS to achieve maximum performance in trimethoprim determination. Therefore, an electrolyte (0.1 M Britton-Robinson buffer) pH of 7 was selected and for square wave voltammetry parameters, optimum values of amplitude, frequency and step potential corresponded to 0.02 V, 50 Hz, and 0.015 V, respectively, whereas the deposition of analyte occurred at +0.7 V for 60 s. In these optimum conditions, the obtained liner range (0.05 to 2 µM), sensitivity (48.8 µA µM-1 cm-2), and LOD (0.065 µM) competes favorably with the commonly used GCE-based sensors or BDD electrodes that employ nanostructuration or are more expensive. The CPS was then applied for trimethoprim determination in fish samples after employing a solid phase extraction procedure based on QuEChERS salts, resulting in recoveries of 105.9 ± 1.8% by the standard addition method.
Collapse
|
2
|
Sawkar RR, Shanbhag MM, Tuwar SM, Veerapur RS, Shetti NP. Glucose Incorporated Graphite Matrix for Electroanalysis of Trimethoprim. BIOSENSORS 2022; 12:909. [PMID: 36291048 PMCID: PMC9599278 DOI: 10.3390/bios12100909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
The antibiotic drug trimethoprim (TMP) is used to treat bacterial infections in humans and animals, and frequently TMP is used along with sulfonamides. However, a large portion of TMP is excreted in its active state, which poses a severe problem to humans and the environment. A sensitive, rapid, cost-effective analytical tool is required to monitor the TMP concentration in biological and environmental samples. Hence, this study proposed an analytical methodology to analyze TMP in clinical, biological and environmental samples. The investigations were carried out using a glucose-modified carbon paste electrode (G-CPE) employing voltammetric techniques. Electrochemical behavior was examined with 0.5 mM TMP solution at optimum pH 3.4 (Phosphate Buffer Solution, I = 0.2 M). The influence of scan rate on the electro-oxidation of TMP was studied within the range of 0.05 to 0.55 V/s. The effect of pH and scan rate variations revealed proton transfer during oxidation. Moreover, diffusion phenomena governed the irreversibility of the electrode reaction. A probable and suitable electrode interaction and reaction mechanism was proposed for the electrochemical oxidation of TMP. Further, the TMP was quantitatively estimated with the differential pulse voltammetry (DPV) technique in the concentration range from 9.0 × 10-7 to 1.0 × 10-4 M. The tablet, spiked water and urine analysis demonstrated that the selected method and developed electrode were rapid, simple, sensitive, and cost-effective.
Collapse
Affiliation(s)
- Rakesh R. Sawkar
- Department of Chemistry, Karnatak Science College, Dharwad 580001, India
| | - Mahesh M. Shanbhag
- Department of Chemistry, K.L.E. Institute of Technology, Hubballi 580027, India
| | - Suresh M. Tuwar
- Department of Chemistry, Karnatak Science College, Dharwad 580001, India
| | - Ravindra S. Veerapur
- Department of Metallurgy & Materials Engineering, Malawi Institute of Technology, Malawi University of Science and Technology, Limbe 5196, Malawi
| | - Nagaraj P. Shetti
- Department of Chemistry, School of Advanced Sciences, KLE Technological University, Vidyanagar, Hubballi 580031, India
- University Center for Research & Development (UCRD), Chandigarh University, Mohali 140413, India
| |
Collapse
|
3
|
Patil VB, Ilager D, Tuwar SM, Mondal K, Shetti NP. Nanostructured ZnO-Based Electrochemical Sensor with Anionic Surfactant for the Electroanalysis of Trimethoprim. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9100521. [PMID: 36290489 PMCID: PMC9598839 DOI: 10.3390/bioengineering9100521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
In this research, detection of trimethoprim (TMP) was carried out using a nanostructured zinc oxide nanoparticle-modified carbon paste electrode (ZnO/CPE) with an anionic surfactant and sodium dodecyl sulphate (SDS) with the help of voltametric techniques. The electrochemical nature of TMP was studied in 0.2 M pH 3.0 phosphate-buffer solution (PBS). The developed electrode displayed the highest peak current compared to nascent CPE. Effects of variation in different parameters, such as pH, immersion time, scan rate, and concentration, were investigated. The electrode process of TMP was irreversible and diffusion controlled with two electrons transferred. The effective concentration range (8.0 × 10-7 M-1.0 × 10-5 M) of TMP was obtained by varying the concentration with a lower limit of detection obtained to be 2.58 × 10-8 M. In addition, this approach was effectively employed in the detection of TMP in pharmaceutical dosages and samples of urine with the excellent recovery data, suggesting the potency of the developed electrode in clinical and pharmaceutical sample analysis.
Collapse
Affiliation(s)
- Vinoda B. Patil
- Department of Chemistry, Karnatak Science College, Dharwad 580001, Karnataka, India
| | - Davalasab Ilager
- Department of Chemistry, K.L.E. Institute of Technology, Hubballi 580027, Karnataka, India
| | - Suresh M. Tuwar
- Department of Chemistry, Karnatak Science College, Dharwad 580001, Karnataka, India
- Correspondence: (S.M.T.); (K.M.); (N.P.S.)
| | - Kunal Mondal
- Idaho National Laboratory, Idaho Falls, ID 83415, USA
- Correspondence: (S.M.T.); (K.M.); (N.P.S.)
| | - Nagaraj P. Shetti
- Department of Chemistry, School of Advanced Sciences, KLE Technological University, Vidyanagar, Hubballi 580031, Karnataka, India
- University Center for Research & Development (UCRD), Chandigarh University, Gharuan, Mohali 140413, Panjab, India
- Correspondence: (S.M.T.); (K.M.); (N.P.S.)
| |
Collapse
|
4
|
D Tecuapa-Flores E, Hernández JG, Roquero-Tejeda P, Arenas-Alatorre JA, Thangarasu P. Rapid electrochemical recognition of trimethoprim in human urine samples using new modified electrodes (CPE/Ag/Au NPs) analysing tunable electrode properties: experimental and theoretical studies. Analyst 2021; 146:7653-7669. [PMID: 34806723 DOI: 10.1039/d1an01408k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pharmaceutical effluents are a serious environmental issue, which require to be treated by a suitable technique; thus, the electrochemical process is actively considered as a viable method for the treatment. In this work, new carbon paste electrodes (CPEs) were fabricated by compressing gold and silver nanoparticles (NPs), namely, CPE/Ag NPs, CPE/Au NPs, and CPE/Ag/Au NPs and then completely characterized by different analytical methods. The performance of the electrodes was studied after determining their surface area (×10-6 cm2) as 4.17, 5.05, 5.27, and 5.12, producing high anodic currents for K4[Fe(CN)6] compared to the commercial electrode. This agrees with the results of impedance study, where the electron transfer rate constants (kapp, ×10-3 cm s-1) were determined to be 28.7, 42.6, 41.0, and 101.4 for CPE, CPE/Ag NPs, CPE/Au NPs, and CPE/Ag/Au NPs, respectively, through the Bode plot-phase shifts. This is consistent with the charge transfer resistance (RCT, Ω), resulting as 171 for CPE/Ag/Au NPs < 395 for CPE/Ag NPs < 427 for CPE/Au NPs and < 742 for CPE. Therefore, these electrodes were employed to detect trimethoprim (TMP) since metallic NPs contribute good crystallinity, stability, conduciveness, and surface plasmon resonance to the CPE, convalescing the sensitivity; comprehensively, they were applied for its detection in real water and human urine samples, and the limit of detection (LOD) was as low as 0.026, 0.032, and 0.026 μmol L-1 for CPE/Ag NPs, CPE/Au NPs, and CPE/Ag/Au NPs, respectively. In contrast, unmodified CPE was unable to detect TMP due to the lack of efficiency. The developed technique shows excellent electrochemical recovery of 92.3 and 97.1% in the urine sample. Density functional theory (DFT) was used to explain the impact of the metallic center in graphite through density of states (DOS).
Collapse
Affiliation(s)
- Eduardo D Tecuapa-Flores
- Facultad de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510 México, D.F., Mexico.
| | - José Guadalupe Hernández
- Centro Tecnológico, Facultad de Estudios Superiores (FES-Aragón), Universidad Nacional Autónoma de México, Estado de México, CP 57130, Mexico
| | - Pedro Roquero-Tejeda
- Facultad de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510 México, D.F., Mexico.
| | - Jesús A Arenas-Alatorre
- Instituto de Fisica, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510 México, D.F., Mexico
| | - Pandiyan Thangarasu
- Facultad de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510 México, D.F., Mexico.
| |
Collapse
|
5
|
Bhengo T, Moyo M, Shumba M, Okonkwo OJ. Simultaneous oxidative determination of antibacterial drugs in aqueous solutions using an electrode modified with MWCNTs decorated with Fe3O4 nanoparticles. NEW J CHEM 2018. [DOI: 10.1039/c8nj00129d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study describes a simple sensor developed from Fe3O4 and MWCNT nanoparticles for the simultaneous detection of sulfamethoxazole (SMX) and trimethoprim (TMP).
Collapse
Affiliation(s)
- T. Bhengo
- Sensor Lab Research Group
- Department of Chemical Technology
- Midlands State University
- Gweru
- Zimbabwe
| | - M. Moyo
- Sensor Lab Research Group
- Department of Chemical Technology
- Midlands State University
- Gweru
- Zimbabwe
| | - M. Shumba
- Sensor Lab Research Group
- Department of Chemical Technology
- Midlands State University
- Gweru
- Zimbabwe
| | - O. J. Okonkwo
- Department of Environmental
- Water
- and Earth Sciences
- Tshwane University of Technology
- Pretoria 0001
| |
Collapse
|
6
|
Sheen S, Jos T, Rajith L, Kumar KG. Manganese porphyrin sensor for the determination of bromate. Journal of Food Science and Technology 2015; 53:1561-6. [PMID: 27570281 DOI: 10.1007/s13197-015-2099-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 10/05/2015] [Accepted: 11/03/2015] [Indexed: 11/25/2022]
Abstract
The electro reductive behavior and determination of bromate on [5, 10, 15, 20-tetrakis (4-methoxyphenylporphyrinato] Manganese (III) chloride (TMOPPMn(III)Cl) modified Gold electrode(GE) was investigated by Square wave voltammetry (SWV). Bromate showed an irreversible reduction peak at -164 mV in 0.1 M pH 7 Na2SO4 solution. The cathodic peak of bromate showed a reduction in potential of 88 mV on modifying GE with a porphyrin film. The peak current varied linearly with concentration with a detection limit of 3.56 × 10(-9) M. The influence of pH, scan rate, supporting electrolyte and interferents on the reduction peak current of bromate were studied. The developed sensor was proposed for the determination of bromate in bread samples and compared with the standard method.
Collapse
Affiliation(s)
- Shanty Sheen
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682022 India
| | - Theresa Jos
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682022 India
| | - Leena Rajith
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, 682022 India
| | | |
Collapse
|
7
|
Demirezen N, Tarınç D, Polat D, Ceşme M, Gölcü A, Tümer M. Synthesis of trimethoprim metal complexes: Spectral, electrochemical, thermal, DNA-binding and surface morphology studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 94:243-255. [PMID: 22525034 DOI: 10.1016/j.saa.2012.03.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 03/05/2012] [Accepted: 03/22/2012] [Indexed: 05/31/2023]
Abstract
Complexes of trimethoprim (TMP), with Cu(II), Zn(II), Pt(II), Ru(III) and Fe(III) have been synthesized. Then, these complexes have been characterized by spectroscopic techniques involving UV-vis, IR, mass and (1)H NMR. CHN elemental analysis, electrochemical and thermal behavior of complexes have also been investigated. The electrochemical properties of all complexes have been investigated by cyclic voltammetry (CV) using glassy carbon electrode. The biological activity of the complexes has been evaluated by examining their ability to bind to calf-thymus DNA (CT DNA) with UV spectroscopy and cyclic voltammetry. UV studies of the interaction of the complexes with DNA have shown that these compounds can bind to CT DNA. The binding constants of the complexes with CT DNA have also been calculated. The cyclic voltammograms of the complexes in the presence of CT DNA have shown that the complexes can bind to CT DNA by both the intercalative and the electrostatic binding mode. The antimicrobial activity of these complexes has been evaluated against three Gram-positive and four Gram-negative bacteria. Antifungal activity against two different fungi has been evaluated and compared with the reference drug TMP. Almost all types of complexes show excellent activity against all type of bacteria and fungi. The morphology of the CT DNA, TMP, metal ions and metal complexes has been investigated by scanning electron microscopy (SEM). To get the SEM images, the interaction of compounds with CT DNA has been studied by means of differential pulse voltammetry (DPV) at CT DNA modified pencil graphite electrode (PGE). The decrease in intensity of the guanine oxidation signals has been used as an indicator for the interaction mechanism.
Collapse
Affiliation(s)
- Nihat Demirezen
- Department of Chemistry, Faculty of Science and Letters, University of Kahramanmaras Sutcu Imam, Campuse of Avsar, 46100 Kahramanmaras, Turkey
| | | | | | | | | | | |
Collapse
|
8
|
|
9
|
Affiliation(s)
- R. K. Gilpin
- Department of Chemistry, Wright State University, Dayton, Ohio 45435, United States
| | - C. S. Gilpin
- Select-O-Sep, LLC, 111 West Main Street, Freeport, Ohio 43973, United States
| |
Collapse
|
10
|
JOSEPH R, KUMAR KG. Electrochemical Sensing of Acyclovir at a Gold Electrode Modified with 2-Mercaptobenzothiazole–[5,10,15,20-tetrakis-(3-methoxy-4-hydroxyphenyl)porphyrinato]copper(II). ANAL SCI 2011; 27:67-72. [DOI: 10.2116/analsci.27.67] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Renjini JOSEPH
- Department of Applied Chemistry, Cochin University of Science and Technology
| | - K. Girish KUMAR
- Department of Applied Chemistry, Cochin University of Science and Technology
| |
Collapse
|