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Salinas A, Triviño JJ, Alvarez-Lueje A, Pizarro I, Segura R, Arancibia V. Anodic stripping voltammetry of arsenic determination with edible mushroom-nafion-modified glassy carbon electrode. Talanta 2024; 277:126391. [PMID: 38861764 DOI: 10.1016/j.talanta.2024.126391] [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: 04/14/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/13/2024]
Abstract
An edible Mushroom-Nafion modified glassy carbon electrode (M2N5-GCE) was prepared using a homogeneous mixture varying the concentrations of these, in addition to the origin of the mushroom (Shiitake, Lentinula edodes, M1 and Abrantes, Agariscus bisporus, M2) and applied to the As(III) determination by anodic stripping voltammetry. After choosing the optimal conditions in the preparation of the electrode, the second stage was to study the effects of various parameters such as supporting electrolyte, pH, accumulation potential, and time (Eacc, tacc). The optimum experimental conditions chosen were Britton Robinson buffer 0.01 mol L-1 pH:4.6; Eacc: -1.0 and tacc: 60 s obtaining a signal of oxidation of As(0) to As(III) about 0.08 V. Peak current was proportional to arsenic concentration over the 19.6-117.6 μg L-1 range, with a 3σ detection limit of 13.4 μg L-1. The method was validated using As(III) spiked tap water from the laboratory with satisfactory results (RE:3.0 %). Finally, the method was applied to the determination of As(III) in water samples from the Loa River (Northern Chile) in the presence of As(V) in a concentration >20 times higher (RE: 2.3 %).
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Affiliation(s)
- Arturo Salinas
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, 8331150, Chile
| | - Juan José Triviño
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, 8331150, Chile.
| | - Alejandro Alvarez-Lueje
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, 8331150, Chile
| | - Isabel Pizarro
- Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta, 1270300, Chile
| | - Rodrigo Segura
- Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, 9170022, Chile
| | - Verónica Arancibia
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, 8331150, Chile.
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Guliani E, Taneja A, Ranjan KR, Mishra V. Luminous Insights: Exploring Organic Fluorescent "Turn-On" Chemosensors for Metal-Ion (Cu +2, Al +3, Zn +2, Fe +3) Detection. J Fluoresc 2023:10.1007/s10895-023-03419-5. [PMID: 37787885 DOI: 10.1007/s10895-023-03419-5] [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: 06/20/2023] [Accepted: 08/25/2023] [Indexed: 10/04/2023]
Abstract
There are several metal ions that are vital for the growth of the environmental field as well as for the biological field but only up to the maximum limit. If they are present in excess, it could be hazardous for the human health. With the growing technology, a series of various detection techniques are employed in order to recognize those metal ions, some of them include voltammetry, electrochemical methods, inductively couples, etc. However, these techniques are expensive, time consuming, requires large storage, advanced instrumentation, and a skilled person to operate. So, here comes the need of a sensor and it is defined as a miniature device which detects the substance of interest by giving response in the form of energy change. So, from past few decades, many sensors have been formulated for detecting metal ions with some basic characteristics like selectivity, specificity, sensitivity, high accuracy, lower detection limit, and response time. Detecting various metal ions by employing chemosensors involves different techniques such as fluorescence, phosphorescence, chemiluminescence, electrochemical, and colorimetry. The fluorescence technique has certain advantages over the other techniques. This review mainly focuses on the chemosensors that show a signal in the form of fluorescence to detect Al+3, Zn+2, Cu+2, and Fe+3 ions.
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Affiliation(s)
- Eksha Guliani
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, 201301, India
| | - Akanksha Taneja
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, 201301, India
| | - Kumar Rakesh Ranjan
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida, 201301, India.
| | - Vivek Mishra
- Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh, 201301, India.
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3
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Liu H, Baghayeri M, Amiri A, Karimabadi F, Nodehi M, Fayazi M, Maleki B, Zare EN, Kaffash A. A strategy for As(III) determination based on ultrafine gold nanoparticles decorated on magnetic graphene oxide. ENVIRONMENTAL RESEARCH 2023; 231:116177. [PMID: 37201707 DOI: 10.1016/j.envres.2023.116177] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
In this work, a new dendrimer modified magnetic graphene oxide (GO) was used as a substrate for electrodeposition of Au nanoparticles. The modified magnetic electrode was employed for sensitive measuring of As(III) ion as a well-established human carcinogen. The prepared electrochemical device exhibits excellent activity towards As(III) detection using the square wave anodic stripping voltammetry (SWASV) protocol. At optimum conditions (deposition potential at -0.5 V for 100 s in 0.1 M acetate buffer with pH 5.0), a linear range from 1.0 to 125.0 μgL-1 with a low detection limit (calculated by S/N = 3) of 0.47 μg L-1 was obtained. In addition to the simplicity and sensitivity of the proposed sensor, its high selectivity against some major interfering agents, such as Cu(II) and Hg(II) makes it an appreciable sensing tool for the screening of As(III). In addition, the sensor revealed satisfactory results for detection of As(III) in different water samples, and the accuracy of obtained data were confirmed by inductively coupled plasma atomic emission spectroscopy (ICP-AES) setup. Accounting for the high sensitivity, remarkable selectivity and good reproducibility, the established electrochemical strategy has great potential for analysis of As(III) in environmental matrices.
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Affiliation(s)
- Huazhong Liu
- Department of Basic Courses, Wuhan Donghu University, Wuhan, China; School of Physics and Telecommunications, Huanggang Normal University, Huanggang, China; Artificial Intelligence School, Wuchang University of Technology, Wuhan, China
| | - Mehdi Baghayeri
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran.
| | - Amirhasan Amiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Fatemeh Karimabadi
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran
| | - Marziyeh Nodehi
- Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran
| | - Maryam Fayazi
- Department of Environment, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
| | - Behrooz Maleki
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | | | - Afsaneh Kaffash
- Department of Internal Medicine, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
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Wu Y, Zhang T, Su L, Wu X. Electrodeposited rGO/AuNP/MnO 2 Nanocomposite-Modified Screen-Printed Carbon Electrode for Sensitive Electrochemical Sensing of Arsenic(III) in Water. BIOSENSORS 2023; 13:bios13050563. [PMID: 37232924 DOI: 10.3390/bios13050563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023]
Abstract
Herein, a simple and portable electrochemical sensor based on a reduced graphene oxide/gold nanoparticle/manganese dioxide (rGO/AuNP/MnO2) nanocomposite-modified screen-printed carbon electrode (SPCE) was constructed by the facile stepwise electrodeposition method and used for electrochemical detection of As(III). The resultant electrode was characterized for its morphological, structural, and electrochemical properties using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). From the morphologic structure, it can be clearly observed that the AuNPs and MnO2 alone or their hybrid were densely deposited or entrapped in thin rGO sheets on the porous carbon surface, which may favor the electro-adsorption of As(III) on the modified SPCE. It is interesting that the nanohybrid modification endows the electrode with a significant decrease in charge transfer resistance and an increase in electroactive specific surface area, which dramatically increases the electro-oxidation current of As(III). This improved sensing ability was ascribed to the synergistic effect of gold nanoparticles with excellent electrocatalytic property and reduced graphene oxide with good electrical conductivity, as well as the involvement of manganese dioxide with a strong adsorption property in the electrochemical reduction of As(III). Under optimized conditions, the sensor can detect As(III) via square wave anodic stripping voltammetry (SWASV) with a low limit of detection of 2.4 μg L-1 and a linear range of 25-200 μg L-1. The proposed portable sensor shows the advantages of a simple preparation procedure, low cost, good repeatability, and long-term stability. The feasibility of rGO/AuNPs/MnO2/SPCE for detecting As(III) in real water was further verified.
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Affiliation(s)
- Yanqing Wu
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education & Fujian Province), College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Tao Zhang
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education & Fujian Province), College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Lishen Su
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education & Fujian Province), College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Xiaoping Wu
- Key Laboratory for Analytical Science of Food Safety and Biology (Ministry of Education & Fujian Province), College of Chemistry, Fuzhou University, Fuzhou 350116, China
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C. G AM, Agnihotri AS, Varghese A, M N. Ion-imprinted chitosan-stabilized biogenic silver nanoparticles for the electrochemical detection of arsenic ( iii) in water samples. NEW J CHEM 2023. [DOI: 10.1039/d2nj04804c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
A schematic representation showing the modified glassy carbon electrode for the detection of arsenic (iii) in water samples.
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Affiliation(s)
- Ann Maria. C. G
- Department of Chemistry, CHRIST (Deemed to be University), Bengaluru-560029, India
| | - Ananya S Agnihotri
- Department of Chemistry, CHRIST (Deemed to be University), Bengaluru-560029, India
| | - Anitha Varghese
- Department of Chemistry, CHRIST (Deemed to be University), Bengaluru-560029, India
| | - Nidhin M
- Department of Chemistry, CHRIST (Deemed to be University), Bengaluru-560029, India
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Khamcharoen W, Duchda P, Songsrirote K, Ratanawimarnwong N, Limchoowong N, Jittangprasert P, Mantim T, Siangproh W. An application of miniaturized electrochemical sensing for determination of arsenic in herbal medicines. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3087-3093. [PMID: 35916357 DOI: 10.1039/d2ay00782g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study aimed to create a miniaturized electrochemical platform for detecting As(III) contamination in herbal medicines. To reduce the operational steps of modification and determination, only a single drop of mixed standard Au(III) and sample solution is proposed to perform the electrochemical measurements using a screen-printed graphene electrode (SPGE). Square wave anodic stripping voltammetry was employed to integrate the simultaneous modification and determination processes. To perform the measurement, As(III) and Au(III) migrate to the SPGE surface while the reduction potential is held at -0.5 V, forming an Au-As intermetallic alloy. Then, As is stripped off for the electrochemical determination of As(III). The total assay time is less than 3 min. Under suitable conditions, the electrochemical sensing system can detect As(III) at concentrations ranging from 0.1 to 3.0 ppm, with a limit of quantification and limit of detection of 0.1 and 0.03 ppm, respectively. The applicability and accuracy of the proposed sensor were verified by determining As(III) in herbal medicinal samples, and they were found to be in line with the standard method (ICP-OES). The benefits of simple operation, rapid detection, portability, and low cost (<1 USD) make this a more powerful tool for routine monitoring and on-site analysis applications.
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Affiliation(s)
- Wisarut Khamcharoen
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
| | - Phichanan Duchda
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Kriangsak Songsrirote
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
| | - Nuanlaorr Ratanawimarnwong
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
| | - Nunticha Limchoowong
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
| | - Piyada Jittangprasert
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
| | - Thitirat Mantim
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
| | - Weena Siangproh
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand.
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7
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Radinović K, Milikić J, Balčiūnaitė A, Sukackienė Z, Bošković M, Tamašauskaitė-Tamašiūnaitė L, Šljukić B. Low Au-content CoAu electrodes for environmental applications. RSC Adv 2022; 12:26134-26146. [PMID: 36275101 PMCID: PMC9475402 DOI: 10.1039/d2ra04828k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/06/2022] [Indexed: 11/21/2022] Open
Abstract
Six cobalt gold (CoAu) electrodes were prepared by electroless deposition using different gold-containing solutions (acidic and weakly acidic) and different Au deposition times. Characterization of CoAu electrodes was done by scanning electron microscopy with energy-dispersive X-ray spectroscopy, N2-sorption, and X-ray powder diffraction techniques. The possibility of using the prepared electrodes in environmental applications, i.e., for the electrochemical sensing of a trace amount of arsenic(iii) in weakly alkaline media was assessed. Employing the CoAu electrode (prepared by immersing Co/Cu into 1 mM HAuCl4 (pH 1.8) at 30 °C for 30 s) under optimized conditions (deposition potential −0.7 V and deposition time of 60 s), a low limit of detection of 2.16 ppb was obtained. Finally, this CoAu electrode showed activity for arsenic oxidation in the presence of Cu(ii) as a model interferent as well as in real samples. Furthermore, the use of CoAu electrode as an anode in fuel cells, namely, direct borohydride – hydrogen peroxide fuel cells was also assessed. A peak power density of 191 mW cm−2 was attained at 25 °C for DBHPFC with CoAu anode at a current density of 201 mA cm−2 and cell voltage of 0.95 V, respectively. The peak power density further increased with the increase of the operating temperature to 55 °C. A low Au-content CoAu electrode prepared by simple electroless deposition outperforms a pure Au electrode for versatile environmental applications: As(iii) sensing in water or as electrodes in direct borohydride-hydrogen peroxide fuel cells.![]()
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Affiliation(s)
- Kristina Radinović
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, Belgrade 11158, Serbia
| | - Jadranka Milikić
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, Belgrade 11158, Serbia
| | - Aldona Balčiūnaitė
- Center for Physical Sciences and Technology, Saulėtekio ave. 3, Vilnius LT-10257, Lithuania
| | - Zita Sukackienė
- Center for Physical Sciences and Technology, Saulėtekio ave. 3, Vilnius LT-10257, Lithuania
| | - Marko Bošković
- University of Belgrade, Institute of Chemistry, Technology, and Metallurgy, Department of Microelectronic Technologies, Njegoševa 12, Belgrade 11000, Serbia
| | | | - Biljana Šljukić
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, Belgrade 11158, Serbia
- Center of Physics and Engineering of Advanced Materials, Laboratory for Physics of Materials and Emerging Technologies, Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, Lisbon1049–001, Portugal
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8
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Okpara EC, Fayemi OE, Wojuola OB, Onwudiwe DC, Ebenso EE. Electrochemical detection of selected heavy metals in water: a case study of African experiences. RSC Adv 2022; 12:26319-26361. [PMID: 36275116 PMCID: PMC9475415 DOI: 10.1039/d2ra02733j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/30/2022] [Indexed: 11/21/2022] Open
Abstract
The safety of water resources throughout the globe has been compromised by various human activities and climate change over the last decades.
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Affiliation(s)
- Enyioma C. Okpara
- Department of Physics, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Omolola E. Fayemi
- Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Olanrewaju B. Wojuola
- Department of Physics, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Damian C. Onwudiwe
- Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Eno E. Ebenso
- College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South Africa
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Numan A, Gill AAS, Rafique S, Guduri M, Zhan Y, Maddiboyina B, Li L, Singh S, Nguyen Dang N. Rationally engineered nanosensors: A novel strategy for the detection of heavy metal ions in the environment. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124493. [PMID: 33229259 DOI: 10.1016/j.jhazmat.2020.124493] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Heavy metal ions (HMIs) have been mainly originated from natural and anthropogenic agents. It has become one of biggest societal issues due to their recognised accumulative and toxic effects in the environment as well as biological media. Key measures are required to reduce the risks posed by toxic metal pollutants existing in the environment. The increased research activities of HMIs detection, and use of technologies based on electrochemical detection that combine with engineered nanomaterials, is a key promising and innovative strategy that can potentially confine heavy metal poisoning. Deep understanding of the characteristics of the physicochemical properties of nanomaterials is highly required. It is also important to interpret the parameters at the nano-bio interface level that merely affect cross-interactions between nanomaterials and HMIs. Therefore, the authors outlined the state-of-the-art techniques that used engineeringly developed nanomaterials to detect HMIs in the environment. The possible novel applications of extensive and relatively low-cost HMIs monitoring and detection are discussed on the basis of these strengths. Finally, it is concluded by providing gist on acquaintance with facts in the present-day scenario along with highlighting areas to explore the strategies to overcome the current limitations for practical applications is useful in further generations of nano-world.
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Affiliation(s)
- Arshid Numan
- State Key Laboratory of ASIC and System, SIST, Fudan University, 200433 Shanghai, China
| | - Atal A S Gill
- Department of Pharmaceutical Chemistry, College of Health Sciences, University of KwaZulu Natal, Durban X54000, South Africa
| | - Saqib Rafique
- Multidisciplinary Nanotechnology Centre, College of Engineering, Swansea University, Swansea SA1 8EN, United Kingdom
| | - Manisha Guduri
- Department of Electronics and Communication Engineering, Institute of Aeronautical Engineering, Hyderabad, Telangana 500043, India
| | - Yiqiang Zhan
- State Key Laboratory of ASIC and System, SIST, Fudan University, 200433 Shanghai, China
| | - Balaji Maddiboyina
- Department of Pharmacy, Vishwabharathi College of Pharmaceutical Sciences, Guntur, Andhra Pradesh 522009, India
| | - Lijie Li
- Multidisciplinary Nanotechnology Centre, College of Engineering, Swansea University, Swansea SA1 8EN, United Kingdom
| | - Sima Singh
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; The Faculty of Pharmacy, Duy Tan University, Da Nang 550000, Viet Nam.
| | - Nam Nguyen Dang
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; The Faculty of Pharmacy, Duy Tan University, Da Nang 550000, Viet Nam.
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Hengameh Zabolestani, Sarhadi H, Beitollahi H. Electrochemical Sensor Based on Modified Screen Printed Electrode for Vitamin B6 Detection. SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY 2021. [DOI: 10.3103/s1068375521020149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lalmalsawmi J, Tiwari D, Kim DJ. Role of nanocomposite materials in the development of electrochemical sensors for arsenic: Past, present and future. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114630] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Idris AO, Oseghe EO, Msagati TAM, Kuvarega AT, Feleni U, Mamba B. Graphitic Carbon Nitride: A Highly Electroactive Nanomaterial for Environmental and Clinical Sensing. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5743. [PMID: 33050361 PMCID: PMC7600177 DOI: 10.3390/s20205743] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 12/19/2022]
Abstract
Graphitic carbon nitride (g-C3N4) is a two-dimensional conjugated polymer that has attracted the interest of researchers and industrial communities owing to its outstanding analytical merits such as low-cost synthesis, high stability, unique electronic properties, catalytic ability, high quantum yield, nontoxicity, metal-free, low bandgap energy, and electron-rich properties. Notably, graphitic carbon nitride (g-C3N4) is the most stable allotrope of carbon nitrides. It has been explored in various analytical fields due to its excellent biocompatibility properties, including ease of surface functionalization and hydrogen-bonding. Graphitic carbon nitride (g-C3N4) acts as a nanomediator and serves as an immobilization layer to detect various biomolecules. Numerous reports have been presented in the literature on applying graphitic carbon nitride (g-C3N4) for the construction of electrochemical sensors and biosensors. Different electrochemical techniques such as cyclic voltammetry, electrochemiluminescence, electrochemical impedance spectroscopy, square wave anodic stripping voltammetry, and amperometry techniques have been extensively used for the detection of biologic molecules and heavy metals, with high sensitivity and good selectivity. For this reason, the leading drive of this review is to stress the importance of employing graphitic carbon nitride (g-C3N4) for the fabrication of electrochemical sensors and biosensors.
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Affiliation(s)
- Azeez O. Idris
- Institute for Nanotechnology and Water Sustainability (iNanoWS), Florida Campus, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1709, South Africa; (E.O.O.); (T.A.M.M.); (A.T.K.); (U.F.); (B.M.)
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Tang Q, Zhu G, Ge Y, Yang J, Huang M, Liu J. AuNPs-polyaniline nanosheet array on carbon nanofiber for the determination of As(III). J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114381] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Hadi Beitollahi, Fariba Garkani Nejad. A Carbon Paste Electrode Modified by Graphene Oxide/Fe3O4@SiO2/Ionic Liquid Nanocomposite for Voltammetric Determination of Acetaminophen in the Presence of Tyrosine. RUSS J ELECTROCHEM+ 2020. [DOI: 10.1134/s1023193519120024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Finšgar M, Govejšek T, Gradišek K. Trace Arsenic Determination in a TiO 2 Pigment Matrix Using Electrothermal Atomic Absorption Spectrometry. SLAS Technol 2019; 25:123-131. [PMID: 31559894 DOI: 10.1177/2472630319877378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This work describes the use of electrothermal atomic absorption spectrometry in combination with a pyrolytic graphite-coated tube with a platform for trace arsenic (As) determination in titanium dioxide (TiO2) pigment. This type of matrix is challenging, as complete digestion in hydrofluoric acid-containing solution is needed. First, closed-vessel microwave digestion was performed for the full-sample decomposition. Next, a temperature program was optimized for drying, pyrolysis, and atomization temperatures. Furthermore, the use of a chemical modifier mixture was proposed that reduced the background contribution and prevented significant analyte loss and therefore improved the analytical procedure. The optimized method was validated for the detection (LOD) and quantification (LOQ) limits, the linear concentration range, accuracy, and precision. Special attention was devoted to the matrix-matching solutions in the calibration procedure. Linearity was confirmed in the 5.0 to 100.0 µg/L concentration range (R2 = 0.999). The average recovery for 16 different real TiO2 pigment samples was 92.0%, and the relative standard deviation value for six replicate measurements was ≤10.4%. Moreover, the LOD and LOQ in terms of the TiO2 pigment mass was determined to be 0.2 µg/(g TiO2) and 0.7 µg/(g TiO2), respectively. The latter complies with Commission Directive 2008/128/EC, which does not allow more than 3 µg As/(g product) as the specific criteria of purity. Finally, based on scanning electron microscopy analysis of unused and several times used pyrolytic graphite-coated tubes, usage of the tube 250 times before replacement is recommended.
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Affiliation(s)
- Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
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Ruichi Zhao, Sun S, Hao W, Guo H, Gao Y, Shi L. A Highly Sensitive Determination for the Melamine in Milk on MIL-101/AuNPs/CTS-PVP-rGO/GCE Electrochemical Sensor. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519070048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tajik S, Garkani-Nejad F, Beitollahi H. Synthesis of La3+/Co3O4 Nanoflowers for Sensitive Detection of Chlorpromazine. RUSS J ELECTROCHEM+ 2019. [DOI: 10.1134/s1023193519030108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Mushiana T, Mabuba N, Idris AO, Peleyeju GM, Orimolade BO, Nkosi D, Ajayi RF, Arotiba OA. An aptasensor for arsenic on a carbon‑gold bi-nanoparticle platform. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2019.100280] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Anodic stripping voltammetric determination of total arsenic using a gold nanoparticle-modified boron-doped diamond electrode on a paper-based device. Mikrochim Acta 2018; 185:324. [DOI: 10.1007/s00604-018-2821-7] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/24/2018] [Indexed: 11/25/2022]
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Idris AO, Mabuba N, Arotiba OA. Towards cancer diagnostics – an α-feto protein electrochemical immunosensor on a manganese(iv) oxide/gold nanocomposite immobilisation layer. RSC Adv 2018; 8:30683-30691. [PMID: 35548739 PMCID: PMC9085503 DOI: 10.1039/c8ra06135a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/24/2018] [Indexed: 11/25/2022] Open
Abstract
A novel electrochemical immunosensor for the quantification of α-feto protein (AFP) using a nanocomposite of manganese(iv) oxide nanorods (MnO2NRs) and gold nanoparticles (AuNPs) as the immobilisation layer is presented. The MnO2NRs was synthesised using a hydrothermal method and AuNPs were electrodeposited on a glassy carbon electrode surface. The MnO2NRs were characterised with scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and X-ray powder diffraction (XRD). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used to characterise the immunosensor at each stage of the biosensor preparation. The MnO2 nanorods and AuNPs were applied as the immobilisation layer to efficiently capture the antibodies and amplify the electrochemical signal. Under optimised conditions, the fabricated immunosensor was utilised for the quantification of AFP with a wide dynamic range of 0.005 to 500 ng mL−1 and detection limits of 0.00276 ng mL−1 and 0.00172 ng mL−1 (S/N = 3) were obtained from square wave anodic stripping voltammetry and EIS respectively. The nanocomposite modifier enhanced the immunosensor performance. More so, this label-free immunosensor possesses good stability over a period of two weeks when stored at 4 °C and was selective in the presence of some interfering species. A novel electrochemical immunosensor for the quantification of α-feto protein (AFP) using a nanocomposite of manganese(iv) oxide nanorods (MnO2NRs) and gold nanoparticles (AuNPs) as the immobilisation layer is presented.![]()
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Affiliation(s)
- Azeez O. Idris
- Department of Applied Chemistry
- University of Johannesburg
- South Africa
| | - Nonhlangabezo Mabuba
- Department of Applied Chemistry
- University of Johannesburg
- South Africa
- Centre for Nanomaterials Science Research
- University of Johannesburg
| | - Omotayo A. Arotiba
- Department of Applied Chemistry
- University of Johannesburg
- South Africa
- Centre for Nanomaterials Science Research
- University of Johannesburg
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Idris AO, Mabuba N, Arotiba OA. A Dendrimer Supported Electrochemical Immunosensor for the Detection of Alpha-feto protein - a Cancer Biomarker. ELECTROANAL 2017. [DOI: 10.1002/elan.201700491] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Azeez O. Idris
- Department of Applied Chemistry; University of Johannesburg; Doornfontein 2028 Johannesburg South Africa
| | - Nonhlangabezo Mabuba
- Department of Applied Chemistry; University of Johannesburg; Doornfontein 2028 Johannesburg South Africa
- Centre for Nanomaterials Science Research; University of Johannesburg; South Africa
| | - Omotayo A. Arotiba
- Department of Applied Chemistry; University of Johannesburg; Doornfontein 2028 Johannesburg South Africa
- Centre for Nanomaterials Science Research; University of Johannesburg; South Africa
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