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Huangfu X, Zhang Y, Wang Y, Ma C. The determination of thallium in the environment: A review of conventional and advanced techniques and applications. CHEMOSPHERE 2024; 358:142201. [PMID: 38692367 DOI: 10.1016/j.chemosphere.2024.142201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/03/2024]
Abstract
Thallium (Tl) is a potential toxicity element that poses significant ecological and environmental risks. Recently, a substantial amount of Tl has been released into the environment through natural and human activities, which attracts increasing attention. The determination of this hazardous and trace element is crucial for controlling its pollution. This article summarizes the advancement and progress in optimizing Tl detection techniques, including atomic absorption spectroscopy (AAS), voltammetry, inductively coupled plasma (ICP)-based methods, spectrophotometry, and X-ray-based methods. Additionally, it introduces sampling and pretreatment methods such as diffusive gradients in thin films (DGT), liquid-liquid extraction, solid phase extraction, and cloud point extraction. Among these techniques, ICP-mass spectrometry (MS) is the preferred choice for Tl detection due to its high precision in determining Tl as well as its species and isotopic composition. Meanwhile, some new materials and agents are employed in detection. The application of novel work electrode materials and chromogenic agents is discussed. Emphasis is placed on reducing solvent consumption and utilizing pretreatment techniques such as ultrasound-assisted processes and functionalized magnetic particles. Most detection is performed in aqueous matrices, while X-ray-based methods applied to solid phases are summarized which provide non-destructive analysis. This work improves the understanding of Tl determination technology while serving as a valuable resource for researchers seeking appropriate analytical techniques.
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Affiliation(s)
- Xiaoliu Huangfu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China.
| | - Yifan Zhang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Yunzhu Wang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Chengxue Ma
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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2
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Fernández L, Espinoza-Montero P, Sánchez-Sarango M, Bolaños-Méndez D, Álvarez-Paguay J, Domínguez-Granda L, Rodríguez A, Romero H, Debut A, Ortiz V. Simultaneous quantification of lead, cadmium and zinc in superficial marine sediments using a carbon-fiber microelectrode modified with bismuth film. Sci Rep 2023; 13:20232. [PMID: 37981653 PMCID: PMC10658076 DOI: 10.1038/s41598-023-47526-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023] Open
Abstract
Marine sediments are a useful environmental assessment matrix as they naturally trap toxic substances of anthropogenic origin and thus have higher concentrations of these than the surrounding water. Therefore, developing methods for the sensitive, accurate, and inexpensive quantification of these substances is important, as the traditional techniques have various disadvantages. The current study evaluated the effectiveness of an in situ bismuth-modified carbon-fiber microelectrode (voltamperometric sensor) to simultaneously detect Pb, Cd, and Zn in marine sediments from Puerto Jeli in El Oro Province, Ecuador. This site is representative of the contamination levels present along the coast in this province. Differential pulse anodic stripping voltammetry was applied, and the resulting linear regression for the metal quantification ranged from 12 to 50 μg mL-1, with quantification limits for Pb(II), Cd(II), and Zn(II) of 18.69, 12.55, and 19.29 μg mL-1, respectively. Thus, the quantification with the sensor was successful. According to the preliminary results, Cd and Pb values exceeded the permissible limits established by Ecuador (Texto Unificado de la Legislación Secundaria del Ministerio del Ambiente) and the US Environmental Protection Agency, respectively.
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Affiliation(s)
- Lenys Fernández
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, 17-01-2184, Quito, Ecuador.
| | - Patricio Espinoza-Montero
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, 17-01-2184, Quito, Ecuador.
| | - Mireya Sánchez-Sarango
- Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad Técnica de Cotopaxi, Latacunga, Ecuador
| | - Diego Bolaños-Méndez
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, 17-01-2184, Quito, Ecuador
| | - Jocelyne Álvarez-Paguay
- Escuela de Ciencias Químicas, Pontificia Universidad Católica del Ecuador, 17-01-2184, Quito, Ecuador
| | - Luis Domínguez-Granda
- Facultad de Ciencias Naturales y Matemáticas, Escuela Superior Politécnica del Litoral ESPOL, Campus Gustavo Galindo, Guayaquil, Ecuador
| | - Augusto Rodríguez
- Grupo CAE INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas), La Plata, Argentina
| | - Hugo Romero
- Facultad de Ciencias Químicas y de la Salud, Universidad Técnica de Machala, Machala, Ecuador
| | - Alexis Debut
- Centro de Nanociencia y Nanotecnología, Universidad de las Fuerzas Armadas ESPE, 170501, Sangolqui, Ecuador
| | - Vladimir Ortiz
- Facultad de Ciencias Agropecuarias y Recursos Naturales, Universidad Técnica de Cotopaxi, Latacunga, Ecuador
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3
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Rusu MM, Fort CI, Vulpoi A, Barbu-Tudoran L, Baia M, Cotet LC, Baia L. Ultrasensitive Electroanalytical Detection of Pb 2+ and H 2O 2 Using Bi and Fe-Based Nanoparticles Embedded into Porous Carbon Xerogel-The Influence of Nanocomposite Pyrolysis Temperatures. Gels 2023; 9:868. [PMID: 37998958 PMCID: PMC10670808 DOI: 10.3390/gels9110868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/19/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023] Open
Abstract
Multifunctional materials based on carbon xerogel (CX) with embedded bismuth (Bi) and iron (Fe) nanoparticles are tested for ultrasensitive amperometric detection of lead cation (Pb2+) and hydrogen peroxide (H2O2). The prepared CXBiFe-T nanocomposites were annealed at different pyrolysis temperatures (T, between 600 and 1050 °C) and characterized by X-ray diffraction (XRD), Raman spectroscopy, N2 adsorption, dynamic light scattering (DLS), and electron microscopies (SEM/EDX and TEM). Electrochemical impedance spectroscopy (EIS) and square wave anodic stripping voltammetry (SWV) performed at glassy carbon (GC) electrodes modified with chitosan (Chi)-CXBiFe-T evidenced that GC/Chi-CXBiFe-1050 electrodes exhibit excellent analytical behavior for Pb2+ and H2O2 amperometric detection: high sensitivity for Pb2+ (9.2·105 µA/µM) and outstanding limits of detection (97 fM, signal-to-noise ratio 3) for Pb2+, and remarkable for H2O2 (2.51 µM). The notable improvements were found to be favored by the increase in pyrolysis temperature. Multi-scale parameters such as (i) graphitization, densification of carbon support, and oxide nanoparticle reduction and purification were considered key aspects in the correlation between material properties and electrochemical response, followed by other effects such as (ii) average nanoparticle and Voronoi domain dimensions and (iii) average CXBiFe-T aggregate dimension.
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Affiliation(s)
- Mihai M. Rusu
- Department of Physics and Chemistry, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania;
| | - Carmen I. Fort
- Laboratory of Advanced Materials and Applied Technologies, Institute of Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fantanele 30, 400294 Cluj-Napoca, Romania; (M.B.); (L.C.C.)
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, “Babes-Bolyai” University, Arany Janos 11, 400028 Cluj-Napoca, Romania
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute of Interdisciplinary Research in Bio-Nano-Sciences, “Babes-Bolyai” University, T. Laurean 42, 400271 Cluj-Napoca, Romania;
| | - Lucian Barbu-Tudoran
- Electron Microscopy Laboratory “Prof. C. Craciun”, Faculty of Biology and Geology, “Babes-Bolyai” University, Clinicilor Str. 5–7, 400006 Cluj-Napoca, Romania;
- Electron Microscopy Integrated Laboratory, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Monica Baia
- Laboratory of Advanced Materials and Applied Technologies, Institute of Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fantanele 30, 400294 Cluj-Napoca, Romania; (M.B.); (L.C.C.)
- Department of Biomolecular Physics, Faculty of Physics, “Babes-Bolyai” University, M. Kogalniceanu 1, 400084 Cluj-Napoca, Romania
| | - Liviu C. Cotet
- Laboratory of Advanced Materials and Applied Technologies, Institute of Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fantanele 30, 400294 Cluj-Napoca, Romania; (M.B.); (L.C.C.)
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, “Babes-Bolyai” University, Arany Janos 11, 400028 Cluj-Napoca, Romania
| | - Lucian Baia
- Laboratory of Advanced Materials and Applied Technologies, Institute of Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fantanele 30, 400294 Cluj-Napoca, Romania; (M.B.); (L.C.C.)
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute of Interdisciplinary Research in Bio-Nano-Sciences, “Babes-Bolyai” University, T. Laurean 42, 400271 Cluj-Napoca, Romania;
- Department of Condensed Matter Physics and Advanced Technologies, Faculty of Physics, “Babes-Bolyai” University, M. Kogalniceanu 1, 400084 Cluj-Napoca, Romania
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Vanderlaan EL, Nolan JK, Sexton J, Evans-Molina C, Lee H, Voytik-Harbin SL. Development of electrochemical Zn 2+ sensors for rapid voltammetric detection of glucose-stimulated insulin release from pancreatic β-cells. Biosens Bioelectron 2023; 235:115409. [PMID: 37244091 DOI: 10.1016/j.bios.2023.115409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 05/29/2023]
Abstract
Diabetes is a chronic disease characterized by elevated blood glucose levels resulting from absent or ineffective insulin release from pancreatic β-cells. β-cell function is routinely assessed in vitro using static or dynamic glucose-stimulated insulin secretion (GSIS) assays followed by insulin quantification via time-consuming, costly enzyme-linked immunosorbent assays (ELISA). In this study, we developed a highly sensitive electrochemical sensor for zinc (Zn2+), an ion co-released with insulin, as a rapid and low-cost method for measuring dynamic insulin release. Different modifications to glassy carbon electrodes (GCE) were evaluated to develop a sensor that detects physiological Zn2+ concentrations while operating within a biological Krebs Ringer Buffer (KRB) medium (pH 7.2). Electrodeposition of bismuth and indium improved Zn2+ sensitivity and limit of detection (LOD), and a Nafion coating improved selectivity. Using anodic stripping voltammetry (ASV) with a pre-concentration time of 6 min, we achieved a LOD of 2.3 μg/L over the wide linear range of 2.5-500 μg/L Zn2+. Sensor performance improved with 10-min pre-concentration, resulting in increased sensitivity, lower LOD (0.18 μg/L), and a bilinear response over the range of 0.25-10 μg/L Zn2+. We further characterized the physicochemical properties of the Zn2+ sensor using scanning electron microscopy (SEM), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Finally, we demonstrated the sensor's capability to measure Zn2+ release from glucose-stimulated INS-1 β-cells and primary mouse islets. Our results exhibited a high correlation with secreted insulin and validated the sensor's potential as a rapid alternative to conventional two-step GSIS plus ELISA methods.
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Affiliation(s)
- Emma L Vanderlaan
- Weldon School of Biomedical Engineering, College of Engineering, Purdue University, West Lafayette, IN, USA; Indiana Medical Scientist/Engineer Training Program, Indiana University School of Medicine, Indianapolis, IN, USA
| | - James K Nolan
- Weldon School of Biomedical Engineering, College of Engineering, Purdue University, West Lafayette, IN, USA; Center for Implantable Devices, Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA
| | - Joshua Sexton
- Weldon School of Biomedical Engineering, College of Engineering, Purdue University, West Lafayette, IN, USA
| | - Carmella Evans-Molina
- Indiana Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA; Roudebush VA Medical Center, Indianapolis, IN, USA
| | - Hyowon Lee
- Weldon School of Biomedical Engineering, College of Engineering, Purdue University, West Lafayette, IN, USA; Center for Implantable Devices, Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA
| | - Sherry L Voytik-Harbin
- Weldon School of Biomedical Engineering, College of Engineering, Purdue University, West Lafayette, IN, USA; Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA.
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5
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Karazan ZM, Roushani M. Selective determination of cadmium and lead ions in different food samples by poly (riboflavin)/carbon black-modified glassy carbon electrode. Food Chem 2023; 423:136283. [PMID: 37187010 DOI: 10.1016/j.foodchem.2023.136283] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/17/2023]
Abstract
In this research, a poly (riboflavin)/carbon black-modified glassy carbon electrode (PRF/CB/GCE) is introduced as a novel electrochemical sensor toward Cd2+ and Pb2+ simultaneous measurement in presence of bismuth ions, applying differential pulse anodic stripping voltammetry (DPASV). Regarding the optimized conditions, the linear ranges were achieved from 0.5 to 600 nM for Cd2+ and Pb2+. The detection limit (LOD) was found to be 0.16 nM for Cd2+ and 0.13 nM for Pb2+. In order to perform the technique in real application, the proposed electrode was used to simultaneously detect ions in rice, honey, and vegetable samples with satisfactory recoveries - indicating that the sensor possesses good practicability to determine Cd2+ and Pb2+. Moreover, an atomic absorption spectrometry (AAS) was used in order to detect the concentration of ions as a reference technique in rice, honey, and vegetable samples.
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Affiliation(s)
| | - Mahmoud Roushani
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam 69315-516, Iran.
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6
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Shalaby EA, Beltagi AM, Hathoot AA, Azzem MA. Simultaneous voltammetric sensing of Zn 2+, Cd 2+, and Pb 2+ using an electrodeposited Bi-Sb nanocomposite modified carbon paste electrode. RSC Adv 2023; 13:7118-7128. [PMID: 36875874 PMCID: PMC9978880 DOI: 10.1039/d3ra00168g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
A sensor for detecting Zn2+, Cd2+, and Pb2+ ions simultaneously based on the square wave anodic stripping response at a bismuth antimony (Bi-Sb) nanocomposite electrode was developed. The electrode was prepared in situ by electrodepositing bismuth and antimony on the surface of a carbon-paste electrode (CPE) while also reducing the analyte metal ions. The structure and performance of the Bi-Sb/CPE electrode were studied using scanning electron microscopy, X-ray diffraction, electrochemical impedance spectroscopy, and cyclic voltammetry. Operational conditions including the concentration of Sb and Bi, the type of electrolyte, pH, and preconcentration conditions were optimized. The linear ranges were determined to be 5-200 μg L-1 for Zn2+, 1-200 μg L-1 for Cd2+, and 1-150 μg L-1 for Pb2+ with the optimized parameters. The limits of detection were 1.46 μg L-1, 0.27 μg L-1, and 0.29 μg L-1 for Zn2+, Cd2+, and Pb2+, respectively. Furthermore, the Bi-Sb/CPE sensor is capable of selective determination of the target metals in the presence of the common cationic and anionic interfering species (Na+, K+, Ca2+, Mg2+, Fe3+, Mn2+, Co2+, Cl-, SO4 2- and HCO3 -). Finally, the sensor was successfully applied to the simultaneous determination of Zn2+, Cd2+, and Pb2+ in a variety of real-world water samples.
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Affiliation(s)
- E A Shalaby
- Electrochemistry Laboratory, Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom 32511 Egypt
| | - A M Beltagi
- Department of Chemistry, Faculty of Science, Kafrelsheikh University Kafrelsheikh 33516 Egypt
| | - A A Hathoot
- Electrochemistry Laboratory, Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom 32511 Egypt
| | - M Abdel Azzem
- Electrochemistry Laboratory, Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom 32511 Egypt
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Feng J, Qi J. Facile synthesis of graphene oxide coated 3D bimetallic oxide MnO2/Bi2O3 microspheres for voltammetric detection of cadmium ion in water. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.124007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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8
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Validation of Voltammetric Methods for Online Analysis of Platinum Dissolution in a Hydrogen PEM Fuel Cell Stack. ELECTROCHEM 2022. [DOI: 10.3390/electrochem3040048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Platinum dissolution in PEM fuel cells is an increasingly important indicator for the state-of-health and lifetime prediction of fuel cells in real applications. For this reason, portable online analysis tools are needed that can detect and quantify platinum with high sensitivity, selectivity, and accuracy in the product water of fuel cells. We validated the hanging mercury drop electrode (HMDE) and non-toxic bismuth film electrodes for the voltammetric determination of platinum for this purpose. Bismuth films were prepared by reductive deposition on both a glassy carbon solid state electrode and on a screen-printed electrode (film on-chip electrode). Both bismuth film electrodes could be successfully validated for the determination of platinum by adsorptive stripping voltammetry. An LOD of 7.9 μg/L and an LOQ of 29.1 μg/L were determined for the bismuth film solid state electrode, values of 22.5 μg/L for the LOD and of 79.0 μg/L for the LOQ were obtained for the bismuth film on-chip electrode. These numbers are still much higher than the results measured with the HMDE (LOD: 0.76 ng/L; LOQ: 2.8 ng/L) and are not sufficient to detect platinum in the product water of a fuel cell run in different load tests. The amount of dissolved platinum produced by a 100 W fuel cell stack upon dynamic and continuous high load cycling, respectively, was in the range of 2.9–4.1 ng/L, which could only be detected by the HMDE.
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Li G, Qi X, Xiao Y, Zhao Y, Li K, Xia Y, Wan X, Wu J, Yang C. An Efficient Voltammetric Sensor Based on Graphene Oxide-Decorated Binary Transition Metal Oxides Bi 2O 3/MnO 2 for Trace Determination of Lead Ions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3317. [PMID: 36234444 PMCID: PMC9565483 DOI: 10.3390/nano12193317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Herein we present a facile synthesis of the graphene oxide-decorated binary transition metal oxides of Bi2O3 and MnO2 nanocomposites (Bi2O3/MnO2/GO) and their applications in the voltammetric detection of lead ions (Pb2+) in water samples. The surface morphologies, crystal structures, electroactive surface area, and charge transferred resistance of the Bi2O3/MnO2/GO nanocomposites were investigated through the scanning electron microscopy (SEM), power X-ray diffraction (XRD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) techniques, respectively. The Bi2O3/MnO2/GO nanocomposites were further decorated onto the surface of a glassy carbon electrode (GCE), and Pb2+ was quantitatively analyzed by using square-wave anodic stripping voltammetry (SWASV). We explored the effect of the analytical parameters, including deposition potential, deposition time, and solution pH, on the stripping peak current of Pb2+. The Bi2O3/MnO2/GO nanocomposites enlarged the electroactive surface area and reduced the charge transferred resistance by significant amounts. Moreover, the synergistic enhancement effect of MnO2, Bi2O3 and GO endowed Bi2O3/MnO2/GO/GCE with extraordinary electrocatalytic activity toward Pb2+ stripping. Under optimal conditions, the Bi2O3/MnO2/GO/GCE showed a broad linear detection range (0.01-10 μM) toward Pb2+ detection, with a low limit of detection (LOD, 2.0 nM). The proposed Bi2O3/MnO2/GO/GCE electrode achieved an accurate detection of Pb2+ in water with good recoveries (95.5-105%).
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Affiliation(s)
- Guangli Li
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Xiaoman Qi
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Yang Xiao
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Yuchi Zhao
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Kanghua Li
- Department of Neurology, Zhuzhou People’s Hospital, Zhuzhou 412008, China
| | - Yonghui Xia
- Zhuzhou Institute for Food and Drug Control, Zhuzhou 412011, China
| | - Xuan Wan
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Jingtao Wu
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Chun Yang
- College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
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Malakhova N, Mozharovskaia P, Kifle AB, Kozitsina A. Bismuth-coated screen-printed electrodes for the simple voltammetric determination of formaldehyde. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3423-3433. [PMID: 35993393 DOI: 10.1039/d2ay00876a] [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
For the first time, bismuth modified electrodes have been used for the voltammetric detection of formaldehyde (FM). The well-known method of forming formaldehyde hydrazone (FAH) in the presence of hydrazine sulphate was used to convert the hydrated form of FM into its electrochemically active derivative. Various experimental conditions for differential pulse voltammetry were studied to achieve the best analytical performance. The FAH reduction current (FM response) reaches its maximum value at a pH of a phosphate buffer solution of 5.2 ± 0.1 in the presence of 0.09-0.12 M hydrazine sulfate on a bismuth film preliminarily precipitated for 8-12 min from acidic Bi(III) acetate solutions at an electrolysis potential of -1.0 V on the surface of a screen-printed carbon electrode (SPCE). A dendritic-like film structure was created on the SPCE surface. Under the optimized conditions a linear calibration curve over the range of 0.01-5 mg L-1 (0.33-167 μM) FM was achieved, with a detection limit of 0.002 mg L-1 (0.06 μM). The determination of FM in waste water, melt water from snow within the city industrial zone, and a widely used pharmaceutical preparation "Endofalk®" with good results revealed the potential applicability of a bismuth modified SPCE (BiSPCE) for trace analysis.
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Affiliation(s)
- Nataliya Malakhova
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Polina Mozharovskaia
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Alexander Berhane Kifle
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Alisa Kozitsina
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
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Seifi A, Afkhami A, Madrakian T. Highly sensitive and simultaneous electrochemical determination of lead and cadmium ions by poly(thionine)/MWCNTs-modified glassy carbon electrode in the presence of bismuth ions. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01728-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Li G, Qi X, Zhang G, Wang S, Li K, Wu J, Wan X, Liu Y, Li Q. Low-cost Voltammetric Sensors for Robust Determination of Toxic Cd(II) and Pb(II) in Environment and Food Based on Shuttle-like α-Fe2O3 Nanoparticles Decorated β-Bi2O3 Microspheres. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107515] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Švancara I, Mikysek T, Sýs M. Polarography with non‐mercury electrodes: A review. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Ivan Švancara
- Department of Analytical Chemistry, Faculty of Chemical Technology University of Pardubice Pardubice Czech Republic
| | - Tomáš Mikysek
- Department of Analytical Chemistry, Faculty of Chemical Technology University of Pardubice Pardubice Czech Republic
| | - Milan Sýs
- Department of Analytical Chemistry, Faculty of Chemical Technology University of Pardubice Pardubice Czech Republic
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Guayule Natural Rubber Latex and Bi2O3 Films for X-ray Attenuating Medical Gloves. MATERIALS 2022; 15:ma15031184. [PMID: 35161128 PMCID: PMC8839583 DOI: 10.3390/ma15031184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 11/30/2022]
Abstract
Existing natural latex radiation-attenuating gloves (RAGs) contain a high loading of radiation attenuation filler that reduces their mechanical properties to below Food and Drug Administration (FDA) medical glove requirements. RAGs are commonly formulated using Hevea natural rubber latex and lead-based fillers. The former can cause life-threatening allergic responses and the latter are known for their toxicity. In this work, a new lead-free RAG formulation based on circumallergenic guayule natural rubber latex (GNRL) and non-toxic radiation attenuation filler bismuth trioxide (Bi2O3) was developed. GNRL films with Bi2O3 loadings ranging from 0 to 300 PHR at different thicknesses were prepared. Radiation attenuation efficiencies (AE) at 60, 80, 100, and 120 kVp were determined and attenuation isocontour curves predicted film thickness and Bi2O3 loading required to meet or exceed the radiation attenuation requirements of ASTM D7866 and commercial RAGs. Optimal curing conditions for GNRL/Bi2O3 films with 150 PHR Bi2O3 were investigated by varying curing temperatures and time from 87 °C to 96 °C and 65 min to 90 min, respectively. In general, as the loading of the filler increased, the density of the films increased while the thickness decreased. GNRL/Bi2O3 films with 150 PHR Bi2O3 and 0.27 mm provided 5% more AE than RAG market average attenuation at the same thickness. The films with 150 PHR Bi2O3 cured under near-optimal conditions (90 °C/85 min, and 87 °C/65 min) met both the radiation attenuation standard (ASTM D7866) and the natural latex surgeon and examination glove standards (ASTM D3577 and D3578, respectively). Thus, gloves made using our formulations and protocols demonstrated potential to meet and surpass medical natural latex glove standards, offer a single product for both infection control and radiation protection instead of double-gloving, provide a greater degree of comfort to the user, and simultaneously reduce contact reactions and eliminate potential latex allergic reaction.
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15
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Bismuth-Chitosan Nanocomposite Sensors for Trace Level Detection of Ni(II) and Co(II) in Water Samples. WATER 2022. [DOI: 10.3390/w14030302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Trace minerals play an essential role in methane production via anaerobic digestion (AD). It is important to monitor Ni(II) and Co(II) concentrations and the Ni/Co concentration ratio for the rapid diagnosis of the ecological status or activity of methanogens in AD. Electrochemical detection of Ni(II) and Co(II) was investigated by coating the Bi-chitosan nanocomposite on a glassy carbon electrode (GCE) via the electrodeposition technique. A square-wave adsorptive cathodic stripping voltammetry technique (SWAdCSV) was applied and optimized when dimethylglyoxime (DMG) was used as the chelating agent for Ni(II) and Co(II) measurements. The SWAdCSV results showed that the current peaks for Co(II) detection are 6.1 times greater than the current peaks for Ni(II) measurements, probably due to the different affinity of DMG molecules between Ni(II) and Co(II). DMG molecules demonstrated higher selectivity toward Co(II) cations compared to Ni(II). The modified Bi-chitosan GCE developed in this study showed a relatively wide range of the Ni(II) and Co(II) concentrations (2–100 µg L−1) with a limit of detection of 3.6 µg L−1 for Ni(II) and 2.4 µg L−1 for Co(II), respectively. The developed sensor was applied to Ni(II) and Co(II) spiked natural water samples and showed good performance of detection with 12 consecutive measurements. Overall, the fabricated sensor showed excellent sensitivity toward Ni(II) and Co(II) in natural water samples.
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16
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One step construction of crystal rod like Bi2O3/ZnO nanocomposite for voltammetry determination of isoprenaline in pharmaceutical and urine sample. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106894] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Sarvestani MRJ, Madrakian T, Afkhami A. Developed electrochemical sensors for the determination of beta-blockers: A comprehensive review. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Mohamad Nor N, Ramli NH, Poobalan H, Qi Tan K, Abdul Razak K. Recent Advancement in Disposable Electrode Modified with Nanomaterials for Electrochemical Heavy Metal Sensors. Crit Rev Anal Chem 2021; 53:253-288. [PMID: 34565248 DOI: 10.1080/10408347.2021.1950521] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Heavy metal pollution has gained global attention due to its high toxicity and non-biodegradability, even at a low level of exposure. Therefore, the development of a disposable electrode that is sensitive, simple, portable, rapid, and cost-effective as the sensor platform in electrochemical heavy metal detection is vital. Disposable electrodes have been modified with nanomaterials so that excellent electrochemical properties can be obtained. This review highlights the recent progress in the development of numerous types of disposable electrodes modified with nanomaterials for electrochemical heavy metal detection. The disposable electrodes made from carbon-based, glass-based, and paper-based electrodes are reviewed. In particular, the analytical performance, fabrication technique, and integration design of disposable electrodes modified with metal (such as gold, tin and bismuth), carbon (such as carbon nanotube and graphene), and metal oxide (such as iron oxide and zinc oxide) nanomaterials are summarized. In addition, the role of the nanomaterials in improving the electrochemical performance of the modified disposable electrodes is discussed. Finally, the current challenges and future prospect of the disposable electrode modified with nanomaterials are summarized.
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Affiliation(s)
- Noorhashimah Mohamad Nor
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Nurul Hidayah Ramli
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Hemalatha Poobalan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Kai Qi Tan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
| | - Khairunisak Abdul Razak
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia.,NanoBiotechnology Research & Innovation (NanoBRI), Institute for Research in Molecular Medicine, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
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19
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Campuzano S, Pedrero M, Yáñez‐Sedeño P, Pingarrón JM. Contemporary electrochemical sensing and affinity biosensing to assist traces metal ions determination in clinical samples. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Susana Campuzano
- Analytical Chemistry Department Faculty of Chemistry Complutense University of Madrid Madrid Spain
| | - María Pedrero
- Analytical Chemistry Department Faculty of Chemistry Complutense University of Madrid Madrid Spain
| | - Paloma Yáñez‐Sedeño
- Analytical Chemistry Department Faculty of Chemistry Complutense University of Madrid Madrid Spain
| | - José M. Pingarrón
- Analytical Chemistry Department Faculty of Chemistry Complutense University of Madrid Madrid Spain
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Królicka A, Zarębski J, Bobrowski A. Catalytic Adsorptive Stripping Voltammetric Determination of Germanium Employing the Oxidizing Properties of V(IV)-HEDTA Complex and Bismuth-Modified Carbon-Based Electrodes. MEMBRANES 2021; 11:524. [PMID: 34357176 PMCID: PMC8308015 DOI: 10.3390/membranes11070524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 11/17/2022]
Abstract
An efficient procedure that may be used to determine germanium traces and combines the advantages of catalytic adsorptive stripping voltammetry (CAdSV) with the convenience of screen-printed electrodes was developed. To induce the CAdSV response of the germanium(IV)-catechol complex, the vanadium(IV)-HEDTA compound was employed in combination with various bismuth-modified homogeneous (glassy carbon, gold coated with a bismuth layer via physical vapor deposition) and heterogeneous (screen-printed carbon, mesoporous carbon, graphene and reduced graphene oxide, polymer-encapsuled carbon fiber) electrodes. This solution had never before been implemented for this purpose. To achieve the most favorable performance of the working electrode, the parameters of bismuth deposition were optimized using a central composite design methodology. SEM imaging and contact angle measurements confirmed the long-term stability and high chemical resistance of the electrodes against the oxidizing action of V(IV)-HEDTA. Under optimized conditions, the method made it possible to detect nanomolar concentrations of germanium with favorable detection limits, high sensitivity, and a wide linear range of 5-90 nM of Ge(IV).
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Affiliation(s)
- Agnieszka Królicka
- Department of Building Materials Technology, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland; (J.Z.); (A.B.)
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21
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Critical reviews of electro-reactivity of screen-printed nanocomposite electrode to safeguard the environment from trace metals. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02802-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Partheni V, Svarnias K, Economou A, Kokkinos C, Fielden PR, Baldock SJ, Goddard NJ. Voltammetric Determination of Trace Heavy Metals by Sequential‐injection Analysis at Plastic Fluidic Chips with Integrated Carbon Fiber‐based Electrodes. ELECTROANAL 2021. [DOI: 10.1002/elan.202100230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vrysiida Partheni
- Department of Chemistry National and Kapodistrian University of Athens Athens 157 71 Greece
| | - Konstantinos Svarnias
- Department of Chemistry National and Kapodistrian University of Athens Athens 157 71 Greece
| | - Anastasios Economou
- Department of Chemistry National and Kapodistrian University of Athens Athens 157 71 Greece
| | - Christos Kokkinos
- Department of Chemistry National and Kapodistrian University of Athens Athens 157 71 Greece
| | - Peter R. Fielden
- Department of Chemistry Lancaster University Lancaster LA1 4YB UK
| | - Sara J. Baldock
- Department of Chemistry Lancaster University Lancaster LA1 4YB UK
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23
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Ansari S, Ansari MS, Satsangee SP, Jain R. Bi 2O 3/ZnO nanocomposite: Synthesis, characterizations and its application in electrochemical detection of balofloxacin as an anti-biotic drug. J Pharm Anal 2021; 11:57-67. [PMID: 33717612 PMCID: PMC7930882 DOI: 10.1016/j.jpha.2020.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 11/23/2022] Open
Abstract
In the present work, a chemically modified electrode has been fabricated utilizing Bi2O3/ZnO nanocomposite. The nanocomposite was synthesized by simple sonochemical method and characterized for its structural and morphological properties by using XRD, FESEM, EDAX, HRTEM and XPS techniques. The results clearly indicated co-existence of Bi2O3 and ZnO in the nanocomposite with chemical interaction between them. Bi2O3/ZnO nanocomposite based glassy carbon electrode (GCE) was utilized for sensitive voltammetric detection of an anti-biotic drug (balofloxacin). The modification amplified the electroactive surface area of the sensor, thus providing more sites for oxidation of analyte. Cyclic and square wave voltammograms revealed that Bi2O3/ZnO modified electrode provides excellent electrocatalytic action towards balofloxacin oxidation. The current exhibited a wide linear response in concentration range of 150-1000 nM and detection limit of 40.5 nM was attained. The modified electrode offered advantages in terms of simplicity of preparation, fair stability (RSD 1.45%), appreciable reproducibility (RSD 2.03%) and selectivity. The proposed sensor was applied for determining balofloxacin in commercial pharmaceutical formulations and blood serum samples with the mean recoveries of 99.09% and 99.5%, respectively.
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Affiliation(s)
- Sana Ansari
- Department of Chemistry, Dayalbagh Educational Institute, Dayalbagh, Agra, 282005, India
| | - M. Shahnawaze Ansari
- Center of Nanotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
- School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Soami P. Satsangee
- Department of Chemistry, Dayalbagh Educational Institute, Dayalbagh, Agra, 282005, India
| | - Rajeev Jain
- School of Studies in Chemistry, Jiwaji University, Gwalior, 474011, India
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24
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Fort CI, Rusu MM, Cotet LC, Vulpoi A, Florea I, Tuseau-Nenez S, Baia M, Baibarac M, Baia L. Carbon Xerogel Nanostructures with Integrated Bi and Fe Components for Hydrogen Peroxide and Heavy Metal Detection. Molecules 2020; 26:E117. [PMID: 33383893 PMCID: PMC7796292 DOI: 10.3390/molecules26010117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/24/2020] [Accepted: 12/24/2020] [Indexed: 11/21/2022] Open
Abstract
Multifunctional Bi- and Fe-modified carbon xerogel composites (CXBiFe), with different Fe concentrations, were obtained by a resorcinol-formaldehyde sol-gel method, followed by drying in ambient conditions and pyrolysis treatment. The morphological and structural characterization performed by X-ray diffraction (XRD), Raman spectroscopy, N2 adsorption/desorption porosimetry, scanning electron microscopy (SEM) and scanning/transmission electron microscopy (STEM) analyses, indicates the formation of carbon-based nanocomposites with integrated Bi and Fe oxide nanoparticles. At higher Fe concentrations, Bi-Fe-O interactions lead to the formation of hybrid nanostructures and off-stoichiometric Bi2Fe4O9 mullite-like structures together with an excess of iron oxide nanoparticles. To examine the effect of the Fe content on the electrochemical performance of the CXBiFe composites, the obtained powders were initially dispersed in a chitosan solution and applied on the surface of glassy carbon electrodes. Then, the multifunctional character of the CXBiFe systems is assessed by involving the obtained modified electrodes for the detection of different analytes, such as biomarkers (hydrogen peroxide) and heavy metal ions (i.e., Pb2+). The achieved results indicate a drop in the detection limit for H2O2 as Fe content increases. Even though the current results suggest that the surface modifications of the Bi phase with Fe and O impurities lower Pb2+ detection efficiencies, Pb2+ sensing well below the admitted concentrations for drinkable water is also noticed.
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Affiliation(s)
- Carmen I. Fort
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, “Babes-Bolyai” University, Arany Janos 11, RO-400028 Cluj-Napoca, Romania; (C.I.F.); (L.C.C.)
- Laboratory of Advanced Materials and Applied Technologies, Institute for Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fântânele 30, RO-400294 Cluj-Napoca, Romania;
| | - Mihai M. Rusu
- Laboratory of Advanced Materials and Applied Technologies, Institute for Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fântânele 30, RO-400294 Cluj-Napoca, Romania;
- Department of Condensed Matter Physics and Advanced Technologies, Faculty of Physics, “Babes-Bolyai” University, M. Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute of Interdisciplinary Research in Bio-Nano-Sciences, “Babes-Bolyai” University, T. Laurean 42, RO-400271 Cluj-Napoca, Romania;
| | - Liviu C. Cotet
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, “Babes-Bolyai” University, Arany Janos 11, RO-400028 Cluj-Napoca, Romania; (C.I.F.); (L.C.C.)
- Laboratory of Advanced Materials and Applied Technologies, Institute for Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fântânele 30, RO-400294 Cluj-Napoca, Romania;
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute of Interdisciplinary Research in Bio-Nano-Sciences, “Babes-Bolyai” University, T. Laurean 42, RO-400271 Cluj-Napoca, Romania;
| | - Ileana Florea
- LPICM, CNRS, Ecole Polytechnique, IPParis, 91228 Palaiseau, France;
| | - Sandrine Tuseau-Nenez
- Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, IPParis, 91228 Palaiseau, France;
| | - Monica Baia
- Department of Biomolecular Physics, Faculty of Physics, “Babes-Bolyai” University, M. Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania;
| | - Mihaela Baibarac
- Laboratory Optical Processes in Nanostructure Materials, National Institute of Materials Physics, Atomistilor str. 405 A, 77125 Bucharest, Romania
| | - Lucian Baia
- Laboratory of Advanced Materials and Applied Technologies, Institute for Research-Development-Innovation in Applied Natural Sciences, “Babes-Bolyai” University, Fântânele 30, RO-400294 Cluj-Napoca, Romania;
- Department of Condensed Matter Physics and Advanced Technologies, Faculty of Physics, “Babes-Bolyai” University, M. Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania
- Nanostructured Materials and Bio-Nano-Interfaces Center, Institute of Interdisciplinary Research in Bio-Nano-Sciences, “Babes-Bolyai” University, T. Laurean 42, RO-400271 Cluj-Napoca, Romania;
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25
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Mc Eleney C, Alves S, Mc Crudden D. Novel determination of Cd and Zn in soil extract by sequential application of bismuth and gallium thin films at a modified screen-printed carbon electrode. Anal Chim Acta 2020; 1137:94-102. [PMID: 33153613 DOI: 10.1016/j.aca.2020.08.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/17/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
This study describes a novel electrochemical technique for the detection of bioavailable cadmium(II) (Cd) and zinc(II) (Zn), in real soil samples. This was made possible by the sequential deposition of bismuth and gallium thin films on modified screen-printed carbon electrodes (SPEs). A range of graphitic modifications were evaluated, and a reduced graphene oxide/graphitic carbon nitride (RGO/g-C3N4) modification proved most suitable. Electrochemical characterisation demonstrated superior stability, attributed to the functional groups of GO, and an increased electron transfer rate, attributed to the intercalated g-C3N4. For voltammetric analysis, cadmium was determined in acetate buffer (pH 4.6) using a bismuth thin film (BiTF). Zn was then determined in the same cell, after adjustment of the pH to 5.1, using a gallium thin film (GaTF). The rationale for two separate thin films is described. Optimisations, such as concentration of bismuth(III), gallium(III), potassium ferrocyanide, pH and deposition potentials, were conducted in the matrix of real samples. The LODs and LOQs were determined in the extracted soil matrix as 0.01 and 0.03 mg kg-1, respectively, for bioavailable Cd and 0.01 and 0.04 mg kg-1, respectively, for bioavailable Zn. Good agreement was observed for Cd and Zn levels in numerous soil samples when compared to the established technique of ICP-OES. This approach opens up the possibility for rapid on-site portable testing of Cd and Zn in real soil samples to determine the probability of Cd uptake by crops.
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Affiliation(s)
- Christopher Mc Eleney
- Department of Science, Letterkenny Institute of Technology, Letterkenny, County Donegal, F92 FC93, Ireland
| | - Sheila Alves
- Teagasc, Crops Research Centre, Oak Park, Carlow, R93 XE12, Ireland
| | - Denis Mc Crudden
- Department of Science, Letterkenny Institute of Technology, Letterkenny, County Donegal, F92 FC93, Ireland.
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26
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Mazzaracchio V, Tshwenya L, Moscone D, Arduini F, Arotiba OA. A Poly(Propylene Imine) Dendrimer and Carbon Black Modified Flexible Screen Printed Electrochemical Sensor for Lead and Cadmium Co‐detection. ELECTROANAL 2020. [DOI: 10.1002/elan.202060284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Vincenzo Mazzaracchio
- University of Rome “Tor Vergata” Department of Chemical Science and Technologies Via della Ricerca Scientifica 00133 Rome Italy
- Department of Chemical Sciences University of Johannesburg Doornfontein Johannesburg South Africa (Formerly known as The Department of Applied Chemistry, University of Johannesburg, Doornfontein, Johannesburg, South Africa
| | - Luthando Tshwenya
- Department of Chemical Sciences University of Johannesburg Doornfontein Johannesburg South Africa (Formerly known as The Department of Applied Chemistry, University of Johannesburg, Doornfontein, Johannesburg, South Africa
| | - Danila Moscone
- University of Rome “Tor Vergata” Department of Chemical Science and Technologies Via della Ricerca Scientifica 00133 Rome Italy
| | - Fabiana Arduini
- University of Rome “Tor Vergata” Department of Chemical Science and Technologies Via della Ricerca Scientifica 00133 Rome Italy
| | - Omotayo A. Arotiba
- Department of Chemical Sciences University of Johannesburg Doornfontein Johannesburg South Africa (Formerly known as The Department of Applied Chemistry, University of Johannesburg, Doornfontein, Johannesburg, South Africa
- Centre for Nanomaterials Science Research University of Johannesburg South Africa
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27
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Zhao G, Sedki M, Ma S, Villarreal C, Mulchandani A, Jassby D. Bismuth Subcarbonate Decorated Reduced Graphene Oxide Nanocomposite for the Sensitive Stripping Voltammetry Analysis of Pb(II) and Cd(II) in Water. SENSORS (BASEL, SWITZERLAND) 2020; 20:E6085. [PMID: 33114759 PMCID: PMC7662973 DOI: 10.3390/s20216085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 11/17/2022]
Abstract
In this paper, bismuth subcarbonate (BiO)2CO3-reduced graphene oxide nanocomposite incorporated in Nafion matrix ((BiO)2CO3-rGO-Nafion) was synthesized and further applied, for the first time, in the sensitive detection of Pb(II) and Cd(II) by square-wave anodic stripping voltammetry (SWASV). The as-synthesized nanocomposites were characterized by energy-dispersive spectroscopy (EDS), Raman spectroscopy, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). (BiO)2CO3 composite plays a key role in the improvement of the detection sensitivity, which can form multicomponent alloy with cadmium and lead. Additionally, the unique structure of rGO can enlarge the surface area and provide abundant active sites. Moreover, Nafion incorporation in the nanocomposite can effectively increase the adhesion and mechanical strength of the film, and further improve the preconcetration ability due to the cation-exchange capacity of its abundant sulfonate groups. As expected, the (BiO)2CO3-rGO/Nafion nanocomposite-modified glassy carbon electrode ((BiO)2CO3-rGO-Nafion/GCE) achieved low detection limits of 0.24 μg/L for Pb(II) and 0.16 μg/L for Cd(II), in the linear range of 1.0-60 μg/L, and showed some excellent performance, such as high stability, good selectivity, and sensitivity. Finally, synthetic water samples were prepared and further used to verify the practicability of the (BiO)2CO3-rGO-Nafion/GCE with satisfactory results.
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Affiliation(s)
- Guo Zhao
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing 210031, China;
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, USA
| | - Mohammed Sedki
- Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA; (M.S.); (C.V.)
| | - Shengcun Ma
- Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA; (S.M.); (D.J.)
| | - Claudia Villarreal
- Materials Science and Engineering Program, University of California, Riverside, CA 92521, USA; (M.S.); (C.V.)
- Materials Science and Engineering, Instituto Tecnológico de Costa Rica, 30101 Cartago, Costa Rica
| | - Ashok Mulchandani
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, USA
- Center for Environmental Research and Technology (CE-CERT), University of California, Riverside, CA 92507, USA
| | - David Jassby
- Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA; (S.M.); (D.J.)
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Pyridine-2-sulfonic (or carboxylic) acid modified glassy carbon electrode for anodic stripping voltammetry analysis of Cd2+ and Pb2+. Anal Chim Acta 2020; 1135:20-28. [DOI: 10.1016/j.aca.2020.08.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/12/2020] [Accepted: 08/14/2020] [Indexed: 02/01/2023]
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29
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Finšgar M, Jezernik K. The Use of Factorial Design and Simplex Optimization to Improve Analytical Performance of In Situ Film Electrodes. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3921. [PMID: 32674513 PMCID: PMC7411898 DOI: 10.3390/s20143921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/05/2020] [Accepted: 07/09/2020] [Indexed: 11/18/2022]
Abstract
This work presents a systematic approach to determining the significance of the individual factors affecting the analytical performance of in-situ film electrode (FE) for the determination of Zn(II), Cd(II), and Pb(II). Analytical parameters were considered simultaneously, where the lowest limit of quantification, the widest linear concentration range, and the highest sensitivity, accuracy, and precision of the method evidenced a better analytical method. Significance was evaluated by means of a fractional factorial (experimental) design using five factors, i.e., the mass concentrations of Bi(III), Sn(II), and Sb(III), to design the in situ FE, the accumulation potential, and the accumulation time. Next, a simplex optimization procedure was employed to determine the optimum conditions for these factors. Such optimization of the in situ FE showed significant improvement in analytical performance compared to the in situ FEs in the initial experiments and compared to pure in situ FEs (bismuth-film, tin-film, and antimony-film electrodes). Moreover, using the optimized in situ FE electrode, a possible interference effect was checked for different species and the applicability of the electrode was demonstrated for a real tap water sample.
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Affiliation(s)
- Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia;
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Early-Stage Growth Mechanism and Synthesis Conditions-Dependent Morphology of Nanocrystalline Bi Films Electrodeposited from Perchlorate Electrolyte. NANOMATERIALS 2020; 10:nano10061245. [PMID: 32605084 PMCID: PMC7353111 DOI: 10.3390/nano10061245] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/11/2020] [Accepted: 06/23/2020] [Indexed: 11/21/2022]
Abstract
Bi nanocrystalline films were formed from perchlorate electrolyte (PE) on Cu substrate via electrochemical deposition with different duration and current densities. The microstructural, morphological properties, and elemental composition were studied using scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy-dispersive X-ray microanalysis (EDX). The optimal range of current densities for Bi electrodeposition in PE using polarization measurements was demonstrated. For the first time, it was shown and explained why, with a deposition duration of 1 s, co-deposition of Pb and Bi occurs. The correlation between synthesis conditions and chemical composition and microstructure for Bi films was discussed. The analysis of the microstructure evolution revealed the changing mechanism of the films’ growth from pillar-like (for Pb-rich phase) to layered granular form (for Bi) with deposition duration rising. This abnormal behavior is explained by the appearance of a strong Bi growth texture and coalescence effects. The investigations of porosity showed that Bi films have a closely-packed microstructure. The main stages and the growth mechanism of Bi films in the galvanostatic regime in PE with a deposition duration of 1–30 s are proposed.
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Dighole RP, Munde AV, Mulik BB, Sathe BR. Bi 2O 3 Nanoparticles Decorated Carbon Nanotube: An Effective Nanoelectrode for Enhanced Electrocatalytic 4-Nitrophenol Reduction. Front Chem 2020; 8:325. [PMID: 32457869 PMCID: PMC7227376 DOI: 10.3389/fchem.2020.00325] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/30/2020] [Indexed: 12/19/2022] Open
Abstract
4-Nitrophenol (4-NP) is present in most industrial waste water resources as an organic pollutant, and is a highly toxic and environmentally hazardous pollutant. Herein, we report that bismuth oxide (Bi2O3) decorated multi-walled carbon nanotubes (Bi2O3@MWCNTs) are the most prominent electrocatalyst for 4-NP electroreduction in acidic conditions. The electrocatalyst is synthesized by a simple chemical reduction method using ethylene glycol as a capping agent. The synthesized Bi2O3@MWCNTs electrocatalyst has been well-characterized by Fourier-transform infrared (FT-IR) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and Raman spectroscopy. Bi2O3@MWCNTs have a cubic structure which is confirmed by XRD. TEM imaging reveals Bi2O3 NPs are ~2 nm in size, are grown on MWCNTs and that these nanoparticles are active toward 4-NP electroreduction. The electrochemical studies by cyclic voltammetry measurements show that the Bi2O3@MWCNTs electrocatalyst can sense 4-NP at a very low potential i.e., -0.17 vs. saturated calomel electrode (SCE). Furthermore, electroanalytical parameters like scan rate and concentration dependence were studied with electrochemcial impedance spectroscopy (EIS) and the effect of pH on cathodic current was examined under experimental conditions. The lower limit of detection (LOD) was found to be 0.1 μM for the Bi2O3@MWCNTs nanomaterial and is excellent toward 4-NP. The present study has applications for reducing water pollution and for sorting out related issues.
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Affiliation(s)
| | | | | | - Bhaskar R. Sathe
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University Aurangabad, Aurangabad, India
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Rehacek V, Hotovy I, Marton M, Mikolasek M, Michniak P, Vincze A, Kromka A, Vojs M. Voltammetric characterization of boron-doped diamond electrodes for electroanalytical applications. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114020] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Majidian M, Raoof JB, Fischer J, Barek J. Differential Pulse Voltammetric Determination of 2‐Methyl‐4,6‐Dinitrophenol using Bismuth Bulk Electrode. ELECTROANAL 2020. [DOI: 10.1002/elan.201800755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mahsa Majidian
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar 47416-95447 Iran
| | - Jahan Bakhsh Raoof
- Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar 47416-95447 Iran
| | - Jan Fischer
- Charles University, Faculty of Science, Department of Analytical ChemistryUNESCO Laboratory of Environmental Electrochemistry Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Jiri Barek
- Charles University, Faculty of Science, Department of Analytical ChemistryUNESCO Laboratory of Environmental Electrochemistry Hlavova 2030/8 12843 Prague 2 Czech Republic
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Shahbazi MA, Faghfouri L, Ferreira MPA, Figueiredo P, Maleki H, Sefat F, Hirvonen J, Santos HA. The versatile biomedical applications of bismuth-based nanoparticles and composites: therapeutic, diagnostic, biosensing, and regenerative properties. Chem Soc Rev 2020; 49:1253-1321. [PMID: 31998912 DOI: 10.1039/c9cs00283a] [Citation(s) in RCA: 163] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Studies of nanosized forms of bismuth (Bi)-containing materials have recently expanded from optical, chemical, electronic, and engineering fields towards biomedicine, as a result of their safety, cost-effective fabrication processes, large surface area, high stability, and high versatility in terms of shape, size, and porosity. Bi, as a nontoxic and inexpensive diamagnetic heavy metal, has been used for the fabrication of various nanoparticles (NPs) with unique structural, physicochemical, and compositional features to combine various properties, such as a favourably high X-ray attenuation coefficient and near-infrared (NIR) absorbance, excellent light-to-heat conversion efficiency, and a long circulation half-life. These features have rendered bismuth-containing nanoparticles (BiNPs) with desirable performance for combined cancer therapy, photothermal and radiation therapy (RT), multimodal imaging, theranostics, drug delivery, biosensing, and tissue engineering. Bismuth oxyhalides (BiOx, where X is Cl, Br or I) and bismuth chalcogenides, including bismuth oxide, bismuth sulfide, bismuth selenide, and bismuth telluride, have been heavily investigated for therapeutic purposes. The pharmacokinetics of these BiNPs can be easily improved via the facile modification of their surfaces with biocompatible polymers and proteins, resulting in enhanced colloidal stability, extended blood circulation, and reduced toxicity. Desirable antibacterial effects, bone regeneration potential, and tumor growth suppression under NIR laser radiation are the main biomedical research areas involving BiNPs that have opened up a new paradigm for their future clinical translation. This review emphasizes the synthesis and state-of-the-art progress related to the biomedical applications of BiNPs with different structures, sizes, and compositions. Furthermore, a comprehensive discussion focusing on challenges and future opportunities is presented.
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Affiliation(s)
- Mohammad-Ali Shahbazi
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, FI-00014 University of Helsinki, Helsinki, Finland.
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Christidi S, Chrysostomou A, Economou A, Kokkinos C, Fielden PR, Baldock SJ, Goddard NJ. Disposable Injection Molded Conductive Electrodes Modified with Antimony Film for the Electrochemical Determination of Trace Pb(II) and Cd(II). SENSORS (BASEL, SWITZERLAND) 2019; 19:s19214809. [PMID: 31694252 PMCID: PMC6865015 DOI: 10.3390/s19214809] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 06/10/2023]
Abstract
This work describes a novel electrochemical sensor fabricated by an injection molding process. This device features a conductive polymer electrode encased in a plastic holder and electroplated in situ with a thin antimony film. The antimony film sensor was applied to the determination of Pb(II) and Cd(II) by anodic stripping voltammetry (ASV). The deposition of Sb on the sensor was studied by cyclic voltammetry (CV) and microscopy. The experimental variables (concentration of the antimony plating solution, deposition potential and time, stripping waveform) were investigated, and the potential interferences were studied and addressed. The limits of detection were 0.95 μg L-1 for Pb(II) and 1.3 for Cd(II) (at 240 s of preconcentration) and the within-sensor percentage relative standard deviations were 4.2% and 4.9%, respectively, at the 25 μg L-1 level (n = 8). Finally, the sensor was applied to the determination of Pb(II) and Cd(II) in a phosphorite sample and a lake water sample.
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Affiliation(s)
- Savvina Christidi
- Department of Chemistry, National and Kapodistrian University of Athens, 157 71 Athens, Greece
| | - Alexia Chrysostomou
- Department of Chemistry, National and Kapodistrian University of Athens, 157 71 Athens, Greece
| | - Anastasios Economou
- Department of Chemistry, National and Kapodistrian University of Athens, 157 71 Athens, Greece
| | - Christos Kokkinos
- Department of Chemistry, National and Kapodistrian University of Athens, 157 71 Athens, Greece
| | - Peter R. Fielden
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, UK
| | - Sara J. Baldock
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, UK
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Kopeć J, Baś B, Jakubowska M. The bismuth bulk annular band electrode — a new voltammetric sensor for Al(III) traces determination. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Stępniowska A, Sztanke M, Tuzimski T, Korolczuk M, Sztanke K. Square-wave adsorptive stripping voltammetric approaches at two in situ modified electrodes as first analytical methods for the quantitative determination of a new anticancer drug candidate. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01735-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Platinum Nanoflower-Modified Electrode as a Sensitive Sensor for Simultaneous Detection of Lead and Cadmium at Trace Levels. J CHEM-NY 2019. [DOI: 10.1155/2019/6235479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We introduce the fabrication and electrochemical application of platinum nanoflower-modified glassy carbon electrode (PtNFs/GCE) for the trace level determination of lead and cadmium using differential pulse anodic stripping voltammetry (DPASV). The modified electrodes have been characterized by EDX, XRD, SEM, and AFM techniques to confirm chemical and physical properties. The effect of potential electrodeposition on the properties of the electrode was investigated. At −0.2 V of potential, platinum developed with a nanoflower shape and dispersed densely all over the glassy carbon surface. In this condition, the highest of lead and cadmium electrochemical signals was clearly observed. The sensor showed wide linearity in the concentration range of 1–100 μg·L−1 with detection limits of 0.408 μg·L−1 and 0.453 μg·L−1 for lead and cadmium ions, respectively. The produced electrodes have good reproducibility with relative standard deviations of 4.65% for lead and 4.36% for cadmium ions. The results demonstrate that this simple, stable, and sensitive sensor is suitable for the simultaneous electrochemical determination of Pb2+ and Cd2+ at trace levels.
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40
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Copper-film electrodes for Pb(II) trace analysis and a detailed electrochemical impedance spectroscopy study. Microchem J 2019. [DOI: 10.1016/j.microc.2019.04.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Petrović S, Guzsvány V, Ranković N, Beljin J, Rončević S, Dalmacija B, Ashrafi AM, Kónya Z, Švancara I, Vytřas K. Trace level voltammetric determination of Zn(II) in selected nutrition related samples by bismuth-oxychloride-multiwalled carbon nanotube composite based electrode. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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42
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Kaplun MM, Ivanov VD. Electrochemical Reduction of Vanadium(V)‐Cupferron Complex, VO(cupf)
2
OH. ELECTROANAL 2019. [DOI: 10.1002/elan.201800695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marina M. Kaplun
- St. Petersburg State UniversityInstitute of Chemistry 7–9 Universitetskaya Emb. St Petersburg 199034 Russia
- Present address: 3M Company, 3M Center, St. Paul Minnesota 55144 USA
| | - Vladimir D. Ivanov
- St. Petersburg State UniversityInstitute of Chemistry 7–9 Universitetskaya Emb. St Petersburg 199034 Russia
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Abdallah R, Derghane A, Lou YY, Merdrignac-Conanec O, Floner D, Geneste F. New porous bismuth electrode material with high surface area. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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44
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Trace Voltammetric Determination of Lead at a Recycled Battery Carbon Rod Electrode. SENSORS 2019; 19:s19040770. [PMID: 30781864 PMCID: PMC6412861 DOI: 10.3390/s19040770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 12/16/2022]
Abstract
Carbon rod electrodes (CREs) were obtained from recycled zinc–carbon batteries and were used without further modification for the measurement of trace concentrations of lead (Pb). The electrochemical behavior of Pb at these electrodes in a variety of supporting electrolytes was investigated by cyclic voltammetry. The anodic peaks obtained on the reverse scans were indicative of Pb being deposited as a thin layer on the electrode surface. The greatest signal–to–noise ratios were obtained in organic acids compared to mineral acids, and acetic acid was selected as the supporting electrolyte for further studies. Conditions were optimized, and it was possible to determine trace concentrations of Pb by differential pulse anodic stripping voltammetry. A supporting electrolyte of 4% v/v acetic acid, with a deposition potential of −1.5 V (vs. SCE) and a deposition time of 1100 s, was found to be optimum. A linear range of 2.8 µg/L to 110 µg/L was obtained, with an associated detection limit (3σ) of 2.8 µg/L. A mean recovery of 95.6% (CV=3.9%) was obtained for a tap water sample fortified with 21.3 µg/L.
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46
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Yao Y, Wu H, Ping J. Simultaneous determination of Cd(II) and Pb(II) ions in honey and milk samples using a single-walled carbon nanohorns modified screen-printed electrochemical sensor. Food Chem 2019; 274:8-15. [DOI: 10.1016/j.foodchem.2018.08.110] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 08/02/2018] [Accepted: 08/24/2018] [Indexed: 10/28/2022]
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Bobrowski A, Królicka A, Śliwa J, Zarębski J. Catalytic voltammetric determination of Mo(VI) ultratraces at the tellurium film electrode using the Mo(VI)-mandelic acid-chlorate system. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Borrill AJ, Reily NE, Macpherson JV. Addressing the practicalities of anodic stripping voltammetry for heavy metal detection: a tutorial review. Analyst 2019; 144:6834-6849. [DOI: 10.1039/c9an01437c] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We highlight the fundamentals and challenges involved with anodic stripping voltammetry (ASV) using solid electrodes providing a practical guide to anyone wishing to undertake analytical ASV.
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Affiliation(s)
- Alexandra J. Borrill
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
- Diamond Science and Technology Centre for Doctoral Training
| | - Nicole E. Reily
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
- Natural Environment Research Council
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Frau I, Wylie S, Cullen J, Korostynska O, Byrne P, Mason A. Microwaves and Functional Materials: A Novel Method to Continuously Detect Metal Ions in Water. MODERN SENSING TECHNOLOGIES 2019. [DOI: 10.1007/978-3-319-99540-3_9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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50
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The Effect of g-C3N4 Materials on Pb(II) and Cd(II) Detection Using Disposable Screen-Printed Sensors. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0504-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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