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Teniou A, Rhouati A, Rabai S, Catanante G, Marty JL. Design of a label-free aptasensor for electrochemical determination of hemoglobin: investigation of the peroxidase-like activity of hemoglobin for the sensing of different substrates. Analyst 2023. [PMID: 37466196 DOI: 10.1039/d3an00345k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The unbalanced hemoglobin level in biological fluids can cause several diseases; hence it can be used as a biomarker for diagnosis. We aim, in the present study, to construct a label-free electrochemical aptasensor for the quantification of hemoglobin. For that, a conjugate of L-cysteine and gold nanoparticles was used for the aptamer immobilization on screen printed carbon electrodes. Using square wave voltammetry, the calibration plot was obtained and it was linear in the range of 50 ng ml-1 to 36 000 ng ml-1 while the detection limit was 1.2 ng ml-1. After the binding of Hb on the modified screen-printed carbon electrode surface, the peroxidase-like activity of the bound hemoglobin was explored in the quantification of different substrates. Hydrogen peroxide and nitrite were chosen as model analytes. Amperometric measurements showed wide linear ranges: 0.2 μM-7.7 mM and 3.6 nM-1.3 mM for H2O2 and nitrite, respectively, with detection limits of 0.044 μM and 0.55 nM. In the proposed strategy, the aptamer provides excellent orientation and a biocompatible environment for hemoglobin whose catalytic activity plays a key role in H2O2 and nitrite analysis.
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Affiliation(s)
- Ahlem Teniou
- Bioengineering laboratory, Higher National School of Biotechnology, Constantine, Algeria.
| | - Amina Rhouati
- Bioengineering laboratory, Higher National School of Biotechnology, Constantine, Algeria.
| | - Selma Rabai
- Laboratory of Sensors, Instrumentations and Process (LCIP), University of Khenchela, Khenchela, Algeria
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Elgamouz A, Kawde AN, Shehadi IA, Sayari S, Abdullah Mohammed SA, Abdelrazeq A, Nassab CN, AbdelHamid AA, Hasan K. Modified Graphite Pencil Electrode Based on Graphene Oxide-Modified Fe 3O 4 for Ferrocene-Mediated Electrochemical Detection of Hemoglobin. ACS OMEGA 2023; 8:11880-11888. [PMID: 37033858 PMCID: PMC10077451 DOI: 10.1021/acsomega.2c07023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
This study describes the synthesis of graphene oxide-modified magnetite (rGO/Fe3O4) and its use as an electrochemical sensor for the quantitative detection of hemoglobin (Hb). rGO is characterized by a 2θ peak at 10.03° in its X-ray diffraction, 1353 and 1586 cm-1 vibrations in Raman spectroscopy, while scanning electron microscopy coupled with energy-dispersive spectroscopy of rGO and rGO/Fe3O4 revealed the presence of microplate structures in both materials and high presence of iron in rGO/Fe3O4 with 50 wt %. The modified graphite pencil electrode, GPE/rGO/Fe3O4, is characterized using cyclic voltammetry. Higher electrochemical surface area is obtained when the GPE is modified with rGO/Fe3O4. Linear scan voltammetry is used to quantify Hb at the surface of the sensor using ferrocene (FC) as an electrochemical amplifier. Linear response for Hb is obtained in the 0.1-1.8 μM range with a regression coefficient of 0.995, a lower limit of detection of 0.090 μM, and a limit of quantitation of 0.28 μM. The sensor was free from interferents and successfully used to sense Hb in human urine. Due to the above-stated qualities, the GPE/rGO/Fe3O4 electrode could be a potential competitive sensor for trace quantities of Hb in physiological media.
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Fatima B, Saeed U, Hussain D, Jawad SEZ, Rafiq HS, Majeed S, Manzoor S, Qadir SY, Ashiq MN, Najam-Ul-Haq M. Facile hydrothermal synthesis of NiTe nanorods for non-enzymatic electrochemical sensing of whole blood hemoglobin in pregnant anemic women. Anal Chim Acta 2022; 1189:339204. [PMID: 34815043 DOI: 10.1016/j.aca.2021.339204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/12/2021] [Accepted: 10/19/2021] [Indexed: 02/07/2023]
Abstract
Electrochemical sensing methods monitor biomolecules because of their specificity, rapid response, lower cost, and automation. Hemoglobin is an abundant protein in the human body and is correlated with various physiological processes. Levels of hemoglobin in blood are associated with anemia in pregnant women. In this research, a non-enzymatic sensor based on NiTe nanorods is developed for the detection and quantification of hemoglobin (Hb) from anemic pregnant patients. NiTe nanorods are synthesized by the single-step method. After characterizing the material, sensing parameters such as the effect of scan rate, pH, concentration, and interferences are optimized using standard hemoglobin samples. Linearity, the limit of detection (LOD), and the limit of quantification (LOQ) for NiTe nanorods are 0.99698, 0.012 nM, and 0.04 nM, respectively. Stability is measured by cyclic chronoamperometry (12 h) and voltammetry (100 cycles). Recovery of hemoglobin from blood samples is in the range of 63-90%. NiTe nanorods quantitatively determine hemoglobin from the blood samples of anemic pregnant women.
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Affiliation(s)
- Batool Fatima
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan.
| | - Ummama Saeed
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Shan-E-Zahra Jawad
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Hafiza Sana Rafiq
- Department of Biochemistry, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Saadat Majeed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Sumaira Manzoor
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | | | - Muhammad Naeem Ashiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Najam-Ul-Haq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan.
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Ahmadi M, Ghoorchian A, Dashtian K, Kamalabadi M, Madrakian T, Afkhami A. Application of magnetic nanomaterials in electroanalytical methods: A review. Talanta 2020; 225:121974. [PMID: 33592722 DOI: 10.1016/j.talanta.2020.121974] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/07/2020] [Accepted: 12/03/2020] [Indexed: 02/08/2023]
Abstract
Magnetic nanomaterials (MNMs) have gained high attention in different fields of studies due to their ferromagnetic/superparamagnetic properties and their low toxicity and high biocompatibility. MNMs contain magnetic elements such as iron and nickel in metallic, bimetallic, metal oxide, and mixed metal oxide. In electroanalytical methods, MNMs have been applied as sorbents for sample preparation before the electrochemical detection (sorbent role), as the electrode modifier (catalytic role), and the integration of the above two roles (as both sorbent and catalytic agent). In this paper, the application of MNMs in electroanalytical methods have been classified based on the main role of the nanomaterial and discussed separately. Furthermore, catalytic activities of MNMs in electroanalytical methods such as redox electrocatalytic, nanozymes catalytic (peroxidase, catalase activity, oxidase activity, superoxide dismutase activity), catalyst gate, and nanocontainer have been discussed.
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Affiliation(s)
- Mazaher Ahmadi
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran.
| | | | | | | | | | - Abbas Afkhami
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran.
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Annu, Raja AN. Recent development in chitosan-based electrochemical sensors and its sensing application. Int J Biol Macromol 2020; 164:4231-4244. [DOI: 10.1016/j.ijbiomac.2020.09.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/12/2022]
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A magnetic electrode modified with hemoglobin for determination of hydrogen peroxide: distinctly improved response by applying a magnetic field. Mikrochim Acta 2020; 187:92. [PMID: 31900660 DOI: 10.1007/s00604-019-4061-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 12/05/2019] [Indexed: 10/25/2022]
Abstract
A facile and highly sensitive biosensor was developed for the determination of hydrogen peroxide (H2O2) via electrochemical catalytic reduction of H2O2 by hemoglobin (Hb). Hb was enriched and immobilized simply in a chitosan (Chit) membrane on a magnetic electrode to construct an enzyme-like biosensor. The biosensor catalyzes the electrochemical reduction of H2O2 under an external magnetic field. The response improved roughly twice as Hb was adsorbed by Chit in an alkaline medium. The response of the biosensor under the magnetic field increased by 16% owing to the paramagnetism of Hb. The effect of pH values on Hb adsorption by Chit, as well as the effect of an external magnetic field on Hb configuration were investigated by UV-vis spectroscopy. The reduction peak current has linear and log-linear relationships with H2O2 concentration in the range of 5-250 μmol∙L-1 and 0.01-1 μmol∙L-1, respectively. The detection limit was 0.003 μmol∙L-1, with a good sensitivity of 0.227 μA∙μM-1∙cm-2. The biosensor was successfully applied to the determination of H2O2 in milk samples and in disinfectant solutions. Recoveries ranged from 96.3 to 105.4%, and from 95.3 to 107.7%, respectively. Graphical abstractConstruction of the biosensor, and principle of H2O2 determination based on Hb bioelectrocatalysis.
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Integration of diagnosis and treatment in the detection and kill of S.aureus in the whole blood. Biosens Bioelectron 2019; 142:111507. [DOI: 10.1016/j.bios.2019.111507] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 06/28/2019] [Accepted: 07/12/2019] [Indexed: 02/06/2023]
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