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Yu Z, Wu H, Xu Z, Yang Z, Lv J, Kong C. Wearable Noninvasive Glucose Sensor Based on Cu xO NFs/Cu NPs Nanocomposites. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23020695. [PMID: 36679492 PMCID: PMC9865846 DOI: 10.3390/s23020695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 05/09/2023]
Abstract
Designing highly active material to fabricate a high-performance noninvasive wearable glucose sensor was of great importance for diabetes monitoring. In this work, we developed CuxO nanoflakes (NFs)/Cu nanoparticles (NPs) nanocomposites to serve as the sensing materials for noninvasive sweat-based wearable glucose sensors. We involve CuCl2 to enhance the oxidation of Cu NPs to generate Cu2O/CuO NFs on the surface. Due to more active sites endowed by the CuxO NFs, the as-prepared sample exhibited high sensitivity (779 μA mM-1 cm-2) for noninvasive wearable sweat sensing. Combined with a low detection limit (79.1 nM), high selectivity and the durability of bending and twisting, the CuxO NFs/Cu NPs-based sensor can detect the glucose level change of sweat in daily life. Such a high-performance wearable sensor fabricated by a convenient method provides a facile way to design copper oxide nanomaterials for noninvasive wearable glucose sensors.
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Negrea S, Andelescu AA, Ilies (b. Motoc) S, Cretu C, Cseh L, Rastei M, Donnio B, Szerb EI, Manea F. Design of Nanostructured Hybrid Electrodes Based on a Liquid Crystalline Zn(II) Coordination Complex-Carbon Nanotubes Composition for the Specific Electrochemical Sensing of Uric Acid. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4215. [PMID: 36500838 PMCID: PMC9739524 DOI: 10.3390/nano12234215] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
A metallomesogen based on an Zn(II) coordination complex was employed as precursor to obtain a complex matrix nanoplatform for the fabrication of a high-performance electrochemical hybrid sensor. Three representative paste electrodes, which differ by the weight ratio between Zn(II) metallomesogen and carbon nanotubes (CNT), i.e., PE_01, PE_02 and PE_03, were obtained by mixing the materials in different amounts. The composition with the largest amount of CNT with respect to Zn complex, i.e., PE_03, gives the best electrochemical signal for uric acid detection by cyclic voltammetry in an alkaline medium. The amphiphilic structure of the Zn(II) coordination complex likely induces a regular separation between the metal centers favoring the redox system through their reduction, followed by stripping, and is characterized by enhanced electrocatalytic activity towards uric acid oxidation. The comparative detection of uric acid between the PE_03 paste electrode and the commercial zinc electrode demonstrated the superiority of the former, and its great potential for the development of advanced electrochemical detection of uric acid. Advanced electrochemical techniques, such as differential-pulsed voltammetry (DPV) and square-wave voltammetry (SWV), allowed for the highly sensitive detection of uric acid in aqueous alkaline solutions. In addition, a good and fast amperometric signal for uric acid detection was achieved by multiple-pulsed amperometry, which was validated by urine analysis.
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Affiliation(s)
- Sorina Negrea
- Department of Applied Chemistry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, Bvd. Vasile Parvan No. 6, 300223 Timisoara, Romania
- National Institute of Research and Development for Industrial Ecology (INCD ECOIND), Timisoara Branch, 300431 Timisoara, Romania
| | - Adelina A. Andelescu
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania
| | - Sorina Ilies (b. Motoc)
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania
| | - Carmen Cretu
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania
| | - Liliana Cseh
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania
| | - Mircea Rastei
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg (UMR7504), 67034 Strasbourg, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg (UMR7504), 67034 Strasbourg, France
| | - Elisabeta I. Szerb
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania
| | - Florica Manea
- Department of Applied Chemistry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, Bvd. Vasile Parvan No. 6, 300223 Timisoara, Romania
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Electrochemical Method for Ease Determination of Sodium Diclofenac Trace Levels in Water Using Graphene-Multi-Walled Carbon Nanotubes Paste Electrode. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 19:ijerph19010029. [PMID: 35010286 PMCID: PMC8750901 DOI: 10.3390/ijerph19010029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 01/10/2023]
Abstract
Sodium diclofenac (DCF) presence reported in water use cycle at various concentrations including trace levels necessitates continuous development of advanced analytical method for its determination. In this work, ease electrochemical methods for DCF determination based on voltammetric and amperometric techniques were proposed using a simple combination of graphene with multi-walled carbon nanotubes as paste electrode. Integration of the graphene with multi-walled carbon nanotubes enlarged the electroactive surface area of the electrode and implicitly enhanced the electrochemical response for DCF determination. On the basis of the sorption autocatalytic effect manifested at low concentration of DCF, we found that the preconcentration step applied prior to differential-pulsed voltammetry (DPV) and multiple-pulsed amperometry (MPA) allowed for the enhancement of the electroanalytical performance of the DCF electrochemical detections, which were validated by testing in tap water. The lowest limit of detection (LOD) of 1.40 ng·L−1 was found using preconcentration prior to DPV under optimized operating conditions, which is better than that reached by other carbon-based electrodes reported in the literature.
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Motoc Ilies S, Schinteie B, Pop A, Negrea S, Cretu C, Szerb EI, Manea F. Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2788. [PMID: 34835559 PMCID: PMC8625772 DOI: 10.3390/nano11112788] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/16/2021] [Accepted: 10/20/2021] [Indexed: 01/10/2023]
Abstract
Two paste electrodes based on graphene quantum dots and carbon nanotubes (GRQD/CNT) and one modified with a homoleptic liquid crystalline Cu(I) based coordination complex (Cu/GRQD/CNT) were obtained and morphostructurally and electrochemically characterized in comparison with simple CNT electrode (CNT) for doxorubicine (DOX) detection in aqueous solutions. GRQD/CNT showed the best electroanalytical performance by differential pulse voltammetry technique (DPV). Moreover, applying a preconcentration step prior to detection stage, the lowest limit of detection (1 ng/L) and the highest sensitivity (216,105 µA/mg·L-1) in comparison with reported literature data were obtained. Cu/GRQD/CNT showed good results using multiple pulse amperometry technique (MPA) and a favorable shifting of the potential detection to mitigate potential interferences. Both GRQD-based paste electrodes have a great potential for practical utility in DOX determination in water at trace concentration levels, using GRQD/CNT with DPV and in pharmaceuticals formulations using Cu/GRQD/CNT with MPA.
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Affiliation(s)
- Sorina Motoc Ilies
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania; (S.M.I.); (B.S.); (C.C.)
| | - Bianca Schinteie
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania; (S.M.I.); (B.S.); (C.C.)
| | - Aniela Pop
- Department of Applied Chemistry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, 2 Victoriei Square, 300006 Timisoara, Romania;
| | - Sorina Negrea
- National Institute of Research and Development for Industrial Ecology (INCD ECOIND), Timisoara Branch, 300431 Timisoara, Romania;
- Department of Environmental Engineering and Management, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
| | - Carmen Cretu
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania; (S.M.I.); (B.S.); (C.C.)
| | - Elisabeta I. Szerb
- “Coriolan Drăgulescu” Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania; (S.M.I.); (B.S.); (C.C.)
| | - Florica Manea
- Department of Applied Chemistry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, 2 Victoriei Square, 300006 Timisoara, Romania;
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Aun TT, Salleh NM, Ali UFM, Manan NSA. Non-Enzymatic Glucose Sensors Involving Copper: An Electrochemical Perspective. Crit Rev Anal Chem 2021; 53:537-593. [PMID: 34477020 DOI: 10.1080/10408347.2021.1967720] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Non-enzymatic glucose sensors based on the use of copper and its oxides have emerged as promising candidates to replace enzymatic glucose sensors owing to their stability, ease of fabrication, and superior sensitivity. This review explains the theories of the mechanism of glucose oxidation on copper transition metal electrodes. It also presents an overview on the development of among the best non-enzymatic copper-based glucose sensors in the past 10 years. A brief description of methods, interesting findings, and important performance parameters are provided to inspire the reader and researcher to create new improvements in sensor design. Finally, several important considerations that pertain to the nano-structuring of the electrode surface is provided.
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Affiliation(s)
- Tan Tiek Aun
- Faculty of Science, Department of Chemistry, Universiti Malaya, Kuala Lumpur, Malaysia.,University Malaya Centre for Ionic Liquids (UMCiL), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Noordini Mohamad Salleh
- Faculty of Science, Department of Chemistry, Universiti Malaya, Kuala Lumpur, Malaysia.,Faculty of Science, Department of Chemistry, Centre for Fundamental and Frontier Sciences in Nanostructure Self-Assembly, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Umi Fazara Md Ali
- Chemical Engineering Programme, Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, Arau, Malaysia.,Centre of Excellence for Biomass Utilization (COEBU), Universiti Malaysia Perlis, Arau, Malaysia
| | - Ninie Suhana Abdul Manan
- Faculty of Science, Department of Chemistry, Universiti Malaya, Kuala Lumpur, Malaysia.,University Malaya Centre for Ionic Liquids (UMCiL), Universiti Malaya, Kuala Lumpur, Malaysia
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Abdo GG, Zagho MM, Al Moustafa AE, Khalil A, Elzatahry AA. A comprehensive review summarizing the recent biomedical applications of functionalized carbon nanofibers. J Biomed Mater Res B Appl Biomater 2021; 109:1893-1908. [PMID: 33749098 DOI: 10.1002/jbm.b.34828] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/09/2021] [Accepted: 02/22/2021] [Indexed: 02/04/2023]
Abstract
Since the discovery and fabrication of carbon nanofibers (CNFs) over a decade ago, scientists foster to discover novel myriad potential applications for this material in both biomedicine and industry. The unique economic viability, mechanical, electrical, optical, thermal, and structural properties of CNFs led to their rapid emergence. CNFs become an artificial intelligence platform for different uses, including a wide range of biomedical applications. Furthermore, CNFs have exceptionally large surface areas that make them flexible for tailoring and functionalization on demand. This review highlights the recent progress and achievements of CNFs in a wide range of biomedical fields, including cancer therapy, biosensing, tissue engineering, and wound dressing. Besides the synthetic techniques of CNFs, their potential toxicity and limitations, as biomaterials in real clinical settings, will be presented. This review discusses CNF's future investigations in other biomedical fields, including gene delivery and bioimaging and CNFs risk assessment.
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Affiliation(s)
- Ghada G Abdo
- College of Pharmacy, QU Health, Qatar University, Doha, 2713, Qatar
| | - Moustafa M Zagho
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, Mississippi, 39406, USA
| | - Ala-Eddin Al Moustafa
- College of Medicine, QU Health, Qatar University, Doha, 2713, Qatar.,Biomedical Research Centre, Qatar University, Doha, 2713, Qatar
| | - Ashraf Khalil
- College of Pharmacy, QU Health, Qatar University, Doha, 2713, Qatar
| | - Ahmed A Elzatahry
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha, 2713, Qatar
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