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Cheng C, Chen H, Chen X, Lu M. A Simultaneous Calibration and Detection Strategy for Electrochemical Sensing with High Accuracy in Complex Water. ACS Sens 2024; 9:3986-3993. [PMID: 39078137 DOI: 10.1021/acssensors.4c00759] [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: 07/31/2024]
Abstract
The electrochemical sensors loaded with nanomaterials have exhibited a great sensitivity. Nonetheless, the field detection for complex waterbodies can be affected by cross-sensitivity, environmental conditions such as temperature and pH value, as well as the relatively low reproducibility and stability of nanomaterials. In this paper, a simultaneous calibration and detection (SCD) strategy is proposed to introduce a simultaneous and precise calibration during field electrochemical detection, which is composed of a linear regression algorithm and a compact electrochemical sensor containing a series of identical sensing cells. This design can significantly mitigate cross-sensitivity in complex water and the inconsistency of sensing materials. Applied in the NO2- detection for practical waterbodies, the SCD strategy has exhibited a relative error of no more than 9.6% for the measurement compared to the results obtained by the standard Griess method and higher accuracy than the normal electrochemical method. The SCD strategy is independent of sensing materials, indicating that it can be widely applied to various detections by just switching the corresponding sensing material.
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Affiliation(s)
- Chu Cheng
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, China
| | - Hongyu Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, China
| | - Xinyi Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, China
| | - Miao Lu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen 361005, China
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2
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Raucci A, Miglione A, Cimmino W, Cioffi A, Singh S, Spinelli M, Amoresano A, Musile G, Cinti S. Technical Evaluation of a Paper-Based Electrochemical Strip to Measure Nitrite Ions in the Forensic Field. ACS MEASUREMENT SCIENCE AU 2024; 4:136-143. [PMID: 38404486 PMCID: PMC10885323 DOI: 10.1021/acsmeasuresciau.3c00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 02/27/2024]
Abstract
Nitrite is a compound used as a food additive for its preservative action and coloring capability, as well as an industrial agent for its antifreezing action and for preventing corrosion, and it is also used as a pharmaceutical in cyanide detoxification therapy. However, even recently, because of its high toxicity, it has been used as a murder and suicidal agent due to its affordability and ready availability. In this technical report, we describe an electrochemical paper-based device for selectively determining nitrite in complex biofluids, such as blood, cadaveric blood, vitreous humor, serum, plasma, and urine. The approach was validated in terms of the linearity of response, selectivity, and sensitivity, and the accuracy of the determination was verified by comparing the results with a chromatographic instrumental method. A linear response was observed in the micromolar range; the sensitivity of the method expressed as the limit of detection was 0.4 μM in buffer measurements. The simplicity of use, the portability of the device, and the performance shown make the approach suitable for detecting nitrite in complex biofluids, including contexts of forensic interest, such as murders or suicides in which nitrite is used as a toxic agent. Limits of detection of ca. 1, 2, 4, 5, 3, and 4 μM were obtained in vitreous humor, urine, serum and plasma, blood, and cadaveric blood, also highlighting a satisfactory accuracy comprised between 91 and 112%.
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Affiliation(s)
- Ada Raucci
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Antonella Miglione
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Wanda Cimmino
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Alessia Cioffi
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Sima Singh
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
| | - Michele Spinelli
- Department
of Chemical Sciences, University of Naples
Federico II, 80126 Naples, Italy
| | - Angela Amoresano
- Department
of Chemical Sciences, University of Naples
Federico II, 80126 Naples, Italy
| | - Giacomo Musile
- Department
of Diagnostics and Public Health, University
of Verona, P.le Scuro 10, 37134 Verona, Italy
| | - Stefano Cinti
- Department
of Pharmacy, University of Naples “Federico
II”, 80131 Naples, Italy
- BAT
Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental
Technology, University of Naples “Federico
II”, 80055 Naples, Italy
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Carducci NGG, Dey S, Hickey DP. Recent Developments and Applications of Microbial Electrochemical Biosensors. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2024; 187:149-183. [PMID: 38273205 DOI: 10.1007/10_2023_236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
This chapter provides a comprehensive overview of microbial electrochemical biosensors, which are a unique class of biosensors that utilize the metabolic activity of microorganisms to convert chemical signals into electrical signals. The principles and mechanisms of these biosensors are discussed, including the different types of microorganisms that can be used. The various applications of microbial electrochemical biosensors in fields such as environmental monitoring, medical diagnostics, and food safety are also explored. The chapter concludes with a discussion of future research directions and potential advancements in the field of microbial electrochemical biosensors.
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Affiliation(s)
- Nunzio Giorgio G Carducci
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, USA
| | - Sunanda Dey
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, USA
| | - David P Hickey
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, USA.
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Lin D, Wu S, Chu S, Lu Y. Cobalt-Nitrogen Co-Doped Carbon as Highly Efficient Oxidase Mimics for Colorimetric Assay of Nitrite. BIOSENSORS 2023; 13:748. [PMID: 37504147 PMCID: PMC10377546 DOI: 10.3390/bios13070748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/27/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
Transition metal-N-doped carbon has been demonstrated to mimic natural enzyme activity; in this study, cobalt-nitrogen co-doped carbon (Co-N-C) nanomaterial was developed, and it could be an oxidase mimic. Firstly, Co-N-C with oxidase-like activity boosts the chromogenic reaction of 3,3',5,5'-tetramethylbenzidine (TMB) to produce the oxidized TMB (oxTMB). And the aromatic primary amino group of oxTMB reacts with nitrite (NO2-) to form diazo groups. Based on this background, we developed a cascade system of a Co-N-C-catalyzed oxidation reaction and a diazotization reaction for nitrite determination. The low detection limit (0.039 μM) indicates that Co-N-C is superior compared with the vast majority of previously reported nitrite assays. This study not only provides a novel nanozyme with sufficiently dispersed active sites, but it also further applies it to the determination of nitrite, which is expected to expand the application of nanozymes in colorimetric analysis.
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Affiliation(s)
- Dalei Lin
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
| | - Shuzhi Wu
- Shandong Academy of Preventive Medicine, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - Shushu Chu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
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Rajab N, Ibrahim H, Hassan RYA, Youssef AFA. Selective determination of nitrite in water and food samples using zirconium oxide (ZrO 2)@MWCNTs modified screen printed electrode. RSC Adv 2023; 13:21259-21270. [PMID: 37465573 PMCID: PMC10350638 DOI: 10.1039/d3ra03448h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/06/2023] [Indexed: 07/20/2023] Open
Abstract
Nitrite ions are being used in different forms as food preservatives acting as flavor enhancers or coloring agents for food products. However, continuous ingestion of nitrite may have severe health implications due to its mutagenic and carcinogenic effects. Thus, this study constructed an electrochemical assay using disposable nano-sensor chip ZrO2@MWCNTs screen printed electrodes (SPE) for the rapid, selective, and sensitive determination of nitrite in food and water samples. As a sensing platform, the use of nanomaterials, including metal oxide nanostructures and carbon nanotubes, exhibited a superior electrocatalytic activity and conductivity. Morphological, structural, and electrochemical analyses were performed using electron microscopy (SEM and TEM), Fourier-transform infrared (FTIR) spectroscopy, electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and chronoamperometry (CA). Accordingly, a wide dynamic linear range (5.0 μM to 100 μM) was obtained with a limit of detection of 0.94 μM by the chronoamperometric technique. In addition, the sensor's selectivity was tested when several non-target species were exposed to the sensor chips while no obvious electrochemical signals were generated when the nitrite ions were not present. Eventually, real food and water sample analysis was conducted, and a high recovery was achieved.
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Affiliation(s)
- Nadeen Rajab
- University of Science and Technology (UST), Zewail City of Science and Technology Giza 12578 Egypt
| | - Hosny Ibrahim
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
| | - Rabeay Y A Hassan
- University of Science and Technology (UST), Zewail City of Science and Technology Giza 12578 Egypt
| | - Ahmed F A Youssef
- University of Science and Technology (UST), Zewail City of Science and Technology Giza 12578 Egypt
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
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Cheng C, Zhang Y, Chen H, Zhang Y, Chen X, Lu M. Reduced graphene oxide-wrapped La 0·8Sr 0·2MnO 3 microspheres sensing electrode for highly sensitive nitrite detection. Talanta 2023; 260:124644. [PMID: 37182290 DOI: 10.1016/j.talanta.2023.124644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
An electrochemical nitrite sensor based on perovskite oxides La0·8Sr0·2MnO3 (LSM) microspheres-decorated reduced graphene oxide (rGO) composite was presented to take the merit of the excellent electrocatalytic activity of the LSM and the large surface area of rGO. The content of rGO has been finely adjusted and the electrochemical sensor employing 15 wt% rGO has shown an ultralow nitrite detection limit of 0.016 μM and a high sensitivity of 0.041 μA μM-1 cm-2 and 0.039 μA μM-1 cm-2 in the range of 2-100 and 100-5000 μM, respectively. In addition, the proposed electrode shows good selectivity, reproducibility and stability, suitable for detection of nitrite at various pH values. The sensor was used to determine the nitrite level in environmental water samples with acceptable relative error, demonstrating its feasibility for practical environmental monitoring.
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Affiliation(s)
- Chu Cheng
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Yixin Zhang
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Hongyu Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Yulong Zhang
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China
| | - Xinyi Chen
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China.
| | - Miao Lu
- Pen-Tung Sah Research Institute of Micro-Nano Science & Technology, Xiamen University, Xiamen, 361005, China.
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Qiu Y, Qu K. Binary organic-inorganic nanocomposite of polyaniline-MnO 2 for non-enzymatic electrochemical detection of environmental pollutant nitrite. ENVIRONMENTAL RESEARCH 2022; 214:114066. [PMID: 35963318 DOI: 10.1016/j.envres.2022.114066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/21/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Due to wide usage as nitrogen fertilizer in agriculture and food additive in industry, nitrite, as one of inorganic environmental pollutants, could cause detrimental effects to the ecological environment. Therefore, accurate, sensitive and rapid detection of nitrite is necessary. In this work, binary hybrid polyaniline-MnO2 organic-inorganic nanocomposite is prepared chemically and characterized via X-ray diffraction spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Polyaniline-MnO2 organic-inorganic nanocomposite serves as excellent electrode modifier for electrochemical sensing of nitrite by two modes of cyclic voltammetry and chronoamperometry, achieving broad linear ranges and low limits of detection for both methods. Moreover, the organic-inorganic nanocomposite displays satisfactory sensing performance in real water sample analysis. Amine and imino groups of polyaniline contribute to the better adsorption behavior of nitrite onto the nanocomposite, which improves the nanocomposite's sensing performance. In summary, the synergistic effects between polyaniline and MnO2 is taken advantaged in the nanocomposite for effective electrochemical sensor development.
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Affiliation(s)
- Yuhang Qiu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, PR China
| | - Ke Qu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, PR China.
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Gao P, Zhao S, Qu X, Qian X, Duan F, Lu S, Zhu H, Du M. Bifunctional high-entropy alloys for sensitive nitrite detection and oxygen reduction reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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