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An Au(111)-dominant polycrystalline gold/gold nanoparticles/1,8-naphthyridine/glassy carbon electrode for anodic stripping voltammetry determination of As(III). Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Murali Mohan J, Amreen K, Javed A, Dubey SK, Goel S. Electrochemical Mini-Platform with Thread based Electrodes for Interference Free Arsenic Detection. IEEE Trans Nanobioscience 2021; 21:117-124. [PMID: 34280106 DOI: 10.1109/tnb.2021.3098035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Herein, a fully integrated thread/textile-based electrochemical sensing device has been demonstrated. A hydrophilic conductive carbon thread, chemically modified with gold nanoparticles through an electrodeposition process, was used as a working electrode (WE). The hydrophilic thread coated with Ag/AgCl and an unmodified bare hydrophilic thread were used as reference electrode (RE) and counter electrode (CE) respectively. The device was fabricated with hydrophilic conductive carbon threads supported by capillary tubes and these integrated electrodes were placed in a 2 mL glass vial. The physico-chemical characterization of the working electrode was carried out using SEM (scanning electron microscopy) and X-ray photoelectron spectroscopy (XPS). Furthermore, the fabricated sensing platform, was tested for electrochemical sensing of arsenic. The electrocatalytic oxidation activity of arsenic in the designed platform was investigated via cyclic voltammetry (CV) and square wave Voltammetry (SWV). An oxidation peak at -0.4 V corresponding to the oxidation of arsenic was obtained. Scan rate effect was performed using CV analysis and the diffusion coefficient was found to be 2.478×10-10 with a regression coefficient of R2 = 0.9647. Further, concentration effect was accomplished in the linear range 0.4 μM to 60 μM. The limit of detection was obtained as 0.416 μM. For the practical application, effect of interference from other chemicals and real sample analysis from the tap water and blood serum sample was carried out which gave remarkable recovery values.
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Organotrialkoxysilane-Functionalized Prussian Blue Nanoparticles-Mediated Fluorescence Sensing of Arsenic(III). NANOMATERIALS 2021; 11:nano11051145. [PMID: 33925050 PMCID: PMC8146005 DOI: 10.3390/nano11051145] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022]
Abstract
Prussian blue nanoparticles (PBN) exhibit selective fluorescence quenching behavior with heavy metal ions; in addition, they possess characteristic oxidant properties both for liquid–liquid and liquid–solid interface catalysis. Here, we propose to study the detection and efficient removal of toxic arsenic(III) species by materializing these dual functions of PBN. A sophisticated PBN-sensitized fluorometric switching system for dosage-dependent detection of As3+ along with PBN-integrated SiO2 platforms as a column adsorbent for biphasic oxidation and elimination of As3+ have been developed. Colloidal PBN were obtained by a facile two-step process involving chemical reduction in the presence of 2-(3,4-epoxycyclohexyl)ethyl trimethoxysilane (EETMSi) and cyclohexanone as reducing agents, while heterogeneous systems were formulated via EETMSi, which triggered in situ growth of PBN inside the three-dimensional framework of silica gel and silica nanoparticles (SiO2). PBN-induced quenching of the emission signal was recorded with an As3+ concentration (0.05–1.6 ppm)-dependent fluorometric titration system, owing to the potential excitation window of PBN (at 480–500 nm), which ultimately restricts the radiative energy transfer. The detection limit for this arrangement is estimated around 0.025 ppm. Furthermore, the mesoporous and macroporous PBN-integrated SiO2 arrangements might act as stationary phase in chromatographic studies to significantly remove As3+. Besides physisorption, significant electron exchange between Fe3+/Fe2+ lattice points and As3+ ions enable complete conversion to less toxic As5+ ions with the repeated influx of mobile phase. PBN-integrated SiO2 matrices were successfully restored after segregating the target ions. This study indicates that PBN and PBN-integrated SiO2 platforms may enable straightforward and low-cost removal of arsenic from contaminated water.
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4
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Udayan APM, Kachwala B, Karthikeyan KG, Gunasekaran S. Ultrathin quasi-hexagonal gold nanostructures for sensing arsenic in tap water. RSC Adv 2020; 10:20211-20221. [PMID: 35520415 PMCID: PMC9059146 DOI: 10.1039/d0ra02750b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/06/2020] [Indexed: 01/21/2023] Open
Abstract
Monodispersed colloidal gold nanoparticles (AuNPs) were synthesized by an easy, cost-effective, and eco-friendly method. The AuNPs were mostly quasi-hexagonal in shape with sizes ranging from 15 to 18 nm. A screen-printed electrode modified with AuNPs (AuNPs/SPE) was used as an electrochemical sensor for the detection of As(iii) in water samples. The mechanistic details for the detection of As(iii) were investigated and an electrochemical reaction mechanism was proposed. Under the optimal experimental conditions, the sensor was highly sensitive to As(iii), with a limit of detection of 0.11 μg L−1 (1.51 nM), which is well below the regulatory limit of 10 μg L−1 established by the United States Environmental Protection Agency and the World Health Organization. The sensor responses were highly stable, reproducible, and linear over the As(iii) concentration range of 0.075 to 30 μg L−1. The presence of co-existing heavy metal cations such as lead, copper, and mercury did not interfere with the sensor response to As(iii). Furthermore, the voltammogram peaks for As(iii), lead, copper, and mercury were sufficiently separate for their potential simultaneous measurement, and at very harsh acidic pH it may be possible to detect As(v). The AuNPs/SPE could detect As(iii) in tap water samples at near-neutral pH, presenting potential possibilities for real-time, practical applications. Monodispersed colloidal gold nanoparticles (AuNPs) were synthesized by an easy, cost-effective, and eco-friendly method for electrochemical detection of As(iii).![]()
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Affiliation(s)
- Anu Prathap M Udayan
- Department of Biological Systems Engineering, University of Wisconsin Madison WI 53706 USA
| | - Batul Kachwala
- Department of Biological Systems Engineering, University of Wisconsin Madison WI 53706 USA
| | - K G Karthikeyan
- Department of Biological Systems Engineering, University of Wisconsin Madison WI 53706 USA
| | - Sundaram Gunasekaran
- Department of Biological Systems Engineering, University of Wisconsin Madison WI 53706 USA
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Kottaichamy AR, Begum S, Devendrachari MC, Bhat ZM, Thimmappa R, Nimbegondi Kotresh HM, Vinod CP, Thotiyl MO. Geometrical Isomerism Directed Electrochemical Sensing. Anal Chem 2020; 92:4541-4547. [DOI: 10.1021/acs.analchem.9b05753] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Alagar Raja Kottaichamy
- Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Shabbah Begum
- Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | | | - Zahid Manzoor Bhat
- Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | - Ravikumar Thimmappa
- Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
| | | | | | - Musthafa Ottakam Thotiyl
- Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India
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6
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A human whole blood chemically modified electrode for the hydrogen peroxide reduction and sensing: Real-time interaction studies of hemoglobin in the red blood cell with hydrogen peroxide. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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A bioinspired copper 2,2-bipyridyl complex immobilized MWCNT modified electrode prepared by a new strategy for elegant electrocatalytic reduction and sensing of hydrogen peroxide. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.082] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Han DD, Li SS, Guo Z, Chen X, Liu JH, Huang XJ. Shape dependent stripping behavior of Au nanoparticles toward arsenic detection: evidence of enhanced sensitivity on the Au (111) facet. RSC Adv 2016. [DOI: 10.1039/c5ra27778g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
This work reports a comparative study of gold cubes {100}, octahedra {111}, and rhombic dodecahedra {110} toward the detection of arsenic for the first time. Au octahedral nanoparticles were found to exhibit the highest sensitivity.
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Affiliation(s)
- Dong-Dong Han
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026
- PR China
- Nano-Materials and Environmental Detection Laboratory
| | - Shan-Shan Li
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026
- PR China
- Nano-Materials and Environmental Detection Laboratory
| | - Zheng Guo
- Nano-Materials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Xing Chen
- Nano-Materials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Jin-Huai Liu
- Nano-Materials and Environmental Detection Laboratory
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei 230031
- People's Republic of China
| | - Xing-Jiu Huang
- Department of Chemistry
- University of Science and Technology of China
- Hefei 230026
- PR China
- Nano-Materials and Environmental Detection Laboratory
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9
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Liu ZG, Chen X, Jia Y, Liu JH, Huang XJ. Role of Fe(III) in preventing humic interference during As(III) detection on gold electrode: spectroscopic and voltammetric evidence. JOURNAL OF HAZARDOUS MATERIALS 2014; 267:153-60. [PMID: 24440655 DOI: 10.1016/j.jhazmat.2013.12.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 11/30/2013] [Accepted: 12/18/2013] [Indexed: 05/21/2023]
Abstract
A drawback of As(III) detection using square wave anodic stripping voltammetry (SWASV) is that it is susceptible to interferences from various metals or organic compounds, especially in real sample water. This study attempts to understand the interference of co-existing of Fe(III) and humic acid (HA) molecules to the electrochemical detection of As(III) using Fourier transform infrared (FTIR) spectrum and X-ray photoelectron spectroscopy (XPS). The electrochemical experiments include stripping of As(III) in the solutions containing HA with different concentrations, cyclic voltammetry in 0.5M H2SO4 in the presence of HA or Fe(III) with/without addition of Fe(III) or HA, and stripping of As(III) in the presence of HA or Fe(III) with/without addition of Fe(III) or HA. FTIR and XPS are employed to confirm the affinity of HA to Fe(III) or As(III) in acidic condition.
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Affiliation(s)
- Zhong-Gang Liu
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China
| | - Xing Chen
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Yong Jia
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Jin-Huai Liu
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Xing-Jiu Huang
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China.
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10
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Azad UP, Ganesan V. Tris(4,4′-dimethyl-2,2′-bipyridine)iron(II)-Exchanged Nafion for Arsenite Determination in Water Samples. ChemElectroChem 2013. [DOI: 10.1002/celc.201300188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Wang D, Zhao Y, Jin H, Zhuang J, Zhang W, Wang S, Wang J. Synthesis of Au-decorated tripod-shaped Te hybrids for applications in the ultrasensitive detection of arsenic. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5733-40. [PMID: 23725383 DOI: 10.1021/am401205w] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Novel Au-decorated Te hybrids with a tripod-shaped planar microstructure were prepared through a two-step hydrothermal process: the synthesis of Te single crystals and the subsequent self-sacrificial reaction of Te template with HAuCl4. Based on the influences of reaction temperature and solvent compositions on the as-obtained microstructures, a plausible mechanism was proposed to account for the formation of the tripod-shaped Te and Au/Te crystals. The as-prepared Au/Te hybrids have the sensitivity of 6.35 μA/ppb in the electrochemical detection of As(III), which represents the highest sensitivity reported in literature. The Au/Te sensor also has a low detection limit of 0.0026 ppb and could work in complex mixtures containing As(III), Cu(II) and other heavy metal ions, exhibiting excellent selectivity on As(III) and Cu(II) ions. The enhanced electrocatalytic property may be attributed to the synergetic interactions between the noble metal and semiconductor and the presence of a large number of active sites on the hybrids surface.
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Affiliation(s)
- Demeng Wang
- Nano-materials & Chemistry Key Laboratory, Wenzhou University, Wenzhou, Zhejiang, China 325035
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12
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Sun CL, Cheng WL, Hsu TK, Chang CW, Chang JL, Zen JM. Ultrasensitive and highly stable nonenzymatic glucose sensor by a CuO/graphene-modified screen-printed carbon electrode integrated with flow-injection analysis. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2013.02.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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13
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Gao C, Yu XY, Xiong SQ, Liu JH, Huang XJ. Electrochemical Detection of Arsenic(III) Completely Free from Noble Metal: Fe3O4 Microspheres-Room Temperature Ionic Liquid Composite Showing Better Performance than Gold. Anal Chem 2013; 85:2673-80. [DOI: 10.1021/ac303143x] [Citation(s) in RCA: 168] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chao Gao
- Research Center
for Biomimetic
Functional Materials and Sensing Devices, Institute of Intelligent
Machines, Chinese Academy of Sciences,
Hefei 230031, PR China
- Department of Chemistry, University of Science and Technology of China, Hefei
230026, PR China
| | - Xin-Yao Yu
- Research Center
for Biomimetic
Functional Materials and Sensing Devices, Institute of Intelligent
Machines, Chinese Academy of Sciences,
Hefei 230031, PR China
| | - Shi-Quan Xiong
- Research Center
for Biomimetic
Functional Materials and Sensing Devices, Institute of Intelligent
Machines, Chinese Academy of Sciences,
Hefei 230031, PR China
| | - Jin-Huai Liu
- Research Center
for Biomimetic
Functional Materials and Sensing Devices, Institute of Intelligent
Machines, Chinese Academy of Sciences,
Hefei 230031, PR China
| | - Xing-Jiu Huang
- Research Center
for Biomimetic
Functional Materials and Sensing Devices, Institute of Intelligent
Machines, Chinese Academy of Sciences,
Hefei 230031, PR China
- Department of Chemistry, University of Science and Technology of China, Hefei
230026, PR China
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14
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Li T, Yang M, Li H. Label-free electrochemical detection of cancer marker based on graphene–cobalt hexacyanoferrate nanocomposite. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.02.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Adekunle AS, Ozoemena KI. Electrocatalytic Oxidation of Diethylaminoethanethiol and Hydrazine at Single-walled Carbon Nanotubes Modified with Prussian Blue Nanoparticles. ELECTROANAL 2010. [DOI: 10.1002/elan.201000289] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Xing S, Xu H, Shi G, Chen J, Zeng L, Jin L. A Simple and Sensitive Method for the Amperometric Detection of Trace Chromium(VI) Based on Prussian Blue Modified Glassy Carbon Electrode. ELECTROANAL 2009. [DOI: 10.1002/elan.200904594] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Umasankar Y, Chen SM, Li SH. Electroanalytical Responses of Arsenic Oxide, Methanol, and Oxygen at the Ruthenium Oxide-Hexachloroiridate with Platinum Hybrid Film. ELECTROANAL 2008. [DOI: 10.1002/elan.200804322] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Sue JW, Ku HH, Chung HH, Zen JM. Disposable screen-printed ring disk carbon electrode coupled with wall-jet electrogenerated iodine for flow injection analysis of arsenic(III). Electrochem commun 2008. [DOI: 10.1016/j.elecom.2008.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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19
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Han S, Chen Y, Pang R, Wan P, Fan M. Fabrication of Prussian Blue/Multiwalled Carbon Nanotubes/Glass Carbon Electrode through Sequential Deposition. Ind Eng Chem Res 2007. [DOI: 10.1021/ie061511i] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sufang Han
- School of Science, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Yongmei Chen
- School of Science, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Ran Pang
- School of Science, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Pingyu Wan
- School of Science, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Maohong Fan
- School of Materials Science and Technology, Georgia Institute of Technology, Atlanta, Georgia 30332
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20
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Wang G, Zhou J, Li J. Layer-by-layer self-assembly aluminum Keggin ions/Prussian blue nanoparticles ultrathin films towards multifunctional sensing applications. Biosens Bioelectron 2007; 22:2921-5. [PMID: 17218090 DOI: 10.1016/j.bios.2006.12.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2006] [Revised: 11/27/2006] [Accepted: 12/01/2006] [Indexed: 11/20/2022]
Abstract
In this study we described the nanocomposites films of specially synthesized inorganic Prussian blue (PB) nanoparticles and polyoxocation Al(13) Keggin ions that possess the excellent sensing activities. Film fabrication using layer-by-layer (LBL) self-assembly technique was followed by electrochemical characterization. The assembled multilayer Al(13)/PB films as sensor devices for both the catalytic reduction of H(2)O(2) and detecting the change of relative humidity were also investigated. The sensitivity of the biosensor was 0.886 mA cm(-2)mM(-1), and about two orders of magnitude change in resistance was observed as the relative humidity increasing from 5 to 95%. Both sensors exhibited good reproducibility, wide linear range. The performance and multifunctional abilities of these nanocomposites promise potential applications in biosensors, environmental controlling system and biomedical devices.
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Affiliation(s)
- Geng Wang
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
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21
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Wang F, Wang J, Chen H, Dong S. Assembly process of CuHCF/MPA multilayers on gold nanoparticles modified electrode and characterization by electrochemical SPR. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2006.10.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Song YS, Muthuraman G, Chen YZ, Lin CC, Zen JM. Screen Printed Carbon Electrode Modified with Poly(L-Lactide) Stabilized Gold Nanoparticles for Sensitive As(III) Detection. ELECTROANAL 2006. [DOI: 10.1002/elan.200603634] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Kumar AS, Zen JM. Characteristic and electrocatalytic behavior of ruthenium Prussian blue analogue film in strongly acidic media. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.02.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Yonge L, Isaac A, Livingstone C, Davis J. Multilayer Laminated Electrode Assemblies: Integrated Disposable Sampling–Sensing Structures. ANAL LETT 2005. [DOI: 10.1080/00032710500259409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Ricci F, Palleschi G. Sensor and biosensor preparation, optimisation and applications of Prussian Blue modified electrodes. Biosens Bioelectron 2005; 21:389-407. [PMID: 16076428 DOI: 10.1016/j.bios.2004.12.001] [Citation(s) in RCA: 463] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2004] [Revised: 12/01/2004] [Accepted: 12/03/2004] [Indexed: 10/25/2022]
Abstract
Being one of the most commonly used electrochemical mediators for analytical applications, Prussian Blue has found a wide use in the biosensor field during the last years. Its particular characteristic of catalysing hydrogen peroxide reduction has been applied in the construction of a large number of oxidase enzyme-based biosensors for clinical, environmental and food analysis. By modifying an electrode surface with Prussian Blue, it is in fact possible to easily detect hydrogen peroxide at an applied potential around 0.0 V versus Ag/AgCl, thus making possible coupling with oxidase enzymes while also avoiding or reducing electrochemical interferences. Papers dealing with glucose, lactate, cholesterol and galactose biosensors that are based on the use of Prussian Blue have recently appeared in the most important analytical chemistry journals. Another recent trend is the use of a choline probe based on choline oxidase for pesticide determination to exploit the inhibition of acetylcholinesterase by these compounds. In addition, the use of Prussian Blue in the development of biosensors for food analysis has captured the interest of many research groups and led to improved methods for the detection of glutamate, galactose, alcohol, fructosyl amine, formate, lysine and oxalate. This review will focus on the biosensing aspects of Prussian Blue-based sensors giving a general overview of the advantages provided by such mediator as well as its drawbacks. A comprehensive bibliographic reference list is presented together with the most up to date research findings in this field and possible future applications. The commercial potential of sensors based on this mediator will also be discussed.
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Affiliation(s)
- F Ricci
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy.
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Simm AO, Banks CE, Wilkins SJ, Karousos NG, Davis J, Compton RG. A comparison of different types of gold?carbon composite electrode for detection of arsenic(III). Anal Bioanal Chem 2004; 381:979-85. [PMID: 15605235 DOI: 10.1007/s00216-004-2960-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2004] [Revised: 11/02/2004] [Accepted: 11/04/2004] [Indexed: 10/26/2022]
Abstract
A study has been conducted using abrasively modified basal and edge-plane graphite, carbon-paste, and carbon-epoxy electrodes to create gold-carbon composite electrodes. Using either nano or micro-sized gold particles their suitability for use in detecting arsenic(III) is assessed. It was found that gold arrays prepared from micron-sized particles gave the best performance for arsenic detection. In particular micron arrays produced in carbon-paste electrodes with an easily renewable surface work well for detection of arsenic, producing a detection limit of 5(+/-2)x10(-9) mol L(-1), with a high sensitivity of 10(+/-0.1) A mol(-1) L.
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Affiliation(s)
- Andrew O Simm
- Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX13QZ UK
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Francesconi KA, Kuehnelt D. Determination of arsenic species: A critical review of methods and applications, 2000–2003. Analyst 2004; 129:373-95. [PMID: 15116227 DOI: 10.1039/b401321m] [Citation(s) in RCA: 362] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We review recent research in the field of arsenic speciation analysis with the emphasis on significant advances, novel applications and current uncertainties.
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Affiliation(s)
- Kevin A Francesconi
- Institute of Chemistry - Analytical Chemistry, Karl-Franzens University, Universitaetsplatz 1, 8010 Graz, Austria
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