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Recent advances in the application of different electrode materials for the determination of 4-hydroxy-nitrobenzene: Review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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Wang K, Wang Z, Zeng H, Luo X, Yang T. Advances in Portable Visual Detection of Pathogenic Bacteria. ACS APPLIED BIO MATERIALS 2020; 3:7291-7305. [PMID: 35019472 DOI: 10.1021/acsabm.0c00984] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Food safety and regulation of consumer welfare are of great concern, so it is necessary to be able to detect pathogenic bacteria quickly and effectively. Although traditional methods of pathogen detection are reliable and widely used, the detection and analysis processes are cumbersome and time-consuming, which is not conducive to fast assays in the field. New detection strategies have emerged in recent years, especially point-of-care testing (POCT) methods, which do not rely on the laboratory and have become an important development direction for pathogen detection. Many visual detection schemes have been developed that integrate portable glucose meters (PGMs), test strips, smartphones, and other portable devices. Importantly, portable and ultrasensitive biosensors have vast promise in detecting pathogens, as they can be suitable tools for clinical diagnosis and the regulation of food safety. This Review focuses on the latest advances in portable device-based methods for visual detection of pathogens, evaluating their advantages and disadvantages.
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Affiliation(s)
- Kuiyu Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Zhenhao Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Hui Zeng
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Tao Yang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519082, China
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Li C, Zheng Y, Ding H, Jiang H, Wang X. Chromium(III)-doped carbon dots: fluorometric detection of p-nitrophenol via inner filter effect quenching. Mikrochim Acta 2019; 186:384. [DOI: 10.1007/s00604-019-3444-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 04/14/2019] [Indexed: 01/27/2023]
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Islam MS, Sazawa K, Hata N, Sugawara K, Kuramitz H. Determination of heavy metal toxicity by using a micro-droplet hydrodynamic voltammetry for microalgal bioassay based on alkaline phosphatase. CHEMOSPHERE 2017; 188:337-344. [PMID: 28888859 DOI: 10.1016/j.chemosphere.2017.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/29/2017] [Accepted: 09/02/2017] [Indexed: 06/07/2023]
Abstract
We developed an electrochemical microalgal bioassay for the determination of heavy metal toxicity in water on the basis of the alkaline phosphatase (ALP) enzyme inhibition of Chlamydomonas reinhardtii. Five heavy metals were chosen as toxicants: Hg, Cd, Pb, Zn, and Cu. The induced ALP activity of C. reinhardtii was inhibited using the phosphate starvation method, and the results were evaluated by measuring the electrochemical oxidation of p-aminophenol (PAP) following the enzymatic conversion of p-aminophenyl phosphate (PAPP) as a substrate. The rapid determination of enzymatic activity was achieved using hydrodynamic voltammetry in a 50 μL micro-droplet with a rotating disk electrode (RDE). Enzymatic activity over a PAPP substrate is affected by heavy metal ions, and this phenomenon decreases the chronoamperometric current signal. The concentrations of Hg, Cd, Pb, Zn, and Cu in which the ALP activity was half that of the control (EC50) were found to be 0.017, 0.021, 0.27, 1.30, and 1.36 μM, respectively. The RDE system was demonstrated to be capable of detecting enzymatic activity by using a small amount of regent, a reaction time of only 60 s, and a detection limit of 5.4 × 10-7 U.
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Affiliation(s)
- Md Saiful Islam
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Kazuto Sazawa
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Noriko Hata
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | | | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan.
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Kongkaew S, Kanatharana P, Thavarungkul P, Limbut W. A preparation of homogeneous distribution of palladium nanoparticle on poly (acrylic acid)-functionalized graphene oxide modified electrode for formalin oxidation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.131] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chen W, Yan Y, Zhang Y, Zhang X, Yin Y, Ding S. DNA transducer-triggered signal switch for visual colorimetric bioanalysis. Sci Rep 2015; 5:11190. [PMID: 26060886 PMCID: PMC4462091 DOI: 10.1038/srep11190] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/14/2015] [Indexed: 12/31/2022] Open
Abstract
A simple and versatile colorimetric biosensor has been developed for sensitive and specific detection of a wide range of biomolecules, such as oligonucleotides and aptamer-recognized targets. Combining the signal transducer and catalyzed hairpin assembly (CHA)-based signal amplification, the target DNA binds with the hairpin DNA to form a new nucleic acid sequence and creates a toehold in the transducer for initiating the recycle amplification reaction of CHA. The catalyzed assembly process produces a large amount of G-rich DNA. In the presence of hemin, the G-rich DNA forms G-quadruplex/hemin complex and mimic horseradish peroxidase activity, which catalyzes a colorimetric reaction. Under optimal conditions, the calibration curve of synthetic target DNA has good linearity from 50 pM to 200 nM with a detection limit of 32 pM. This strategy has been successfully applied to detect S. pneumoniae as low as 156 CFU mL(-1), and shows a good specificity against closely related streptococci and major pathogenic bacteria. In addition, the developed method enables successful visual analysis of S. pneumoniae in clinical samples by the naked eye. Importantly, this method demonstrates excellent assay versatility for sensitively detecting oligonucleotides or aptamer-recognized targets.
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Affiliation(s)
- Wenhong Chen
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Clinical laboratory, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China
| | - Yurong Yan
- 1] Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Clinical laboratory, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China [2] Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Ye Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Xuemei Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Yibing Yin
- 1] Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Clinical laboratory, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China [2] Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Shijia Ding
- 1] Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Clinical laboratory, Children's Hospital of Chongqing Medical University, Chongqing 400014, PR China [2] Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, PR China
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Lezi N, Economou A, Barek J, Prodromidis M. Screen-Printed Disposable Sensors Modified with Bismuth Precursors for Rapid Voltammetric Determination of 3 Ecotoxic Nitrophenols. ELECTROANAL 2014. [DOI: 10.1002/elan.201400001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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A disposable alkaline phosphatase-based biosensor for vanadium chronoamperometric determination. SENSORS 2014; 14:3756-67. [PMID: 24569772 PMCID: PMC3958235 DOI: 10.3390/s140203756] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/24/2014] [Accepted: 02/08/2014] [Indexed: 11/17/2022]
Abstract
A chronoamperometric method for vanadium ion determination, based on the inhibition of the enzyme alkaline phosphatase, is reported. Screen-printed carbon electrodes modified with gold nanoparticles were used as transducers for the immobilization of the enzyme. The enzymatic activity over 4-nitrophenyl phosphate sodium salt is affected by vanadium ions, which results in a decrease in the chronoamperometric current registered. The developed method has a detection limit of 0.39 ± 0.06 µM, a repeatability of 7.7% (n = 4) and a reproducibility of 8% (n = 3). A study of the possible interferences shows that the presence of Mo(VI), Cr(III), Ca(II) and W(VI), may affect vanadium determination at concentration higher than 1.0 mM. The method was successfully applied to the determination of vanadium in spiked tap water.
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Bhimji A, Zaragoza AA, Live LS, Kelley SO. Electrochemical enzyme-linked immunosorbent assay featuring proximal reagent generation: detection of human immunodeficiency virus antibodies in clinical samples. Anal Chem 2013; 85:6813-9. [PMID: 23758505 DOI: 10.1021/ac4009429] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe a simple electrochemical immunoassay for human immunodeficiency virus (HIV) antibody detection that localizes capture and detection reagents in close proximity to a microelectrode. Antigenic peptides from HIV-1 gp41 or HIV-2 gp36 were covalently attached to a SU-8 substrate that also presented a template for the deposition of three-dimensional microelectrodes. The detection of HIV antibodies was achieved with an electrochemical immunoassay where an alkaline phosphatase conjugated secondary antibody reacts with p-aminophenyl phosphate (pAPP) to produce a redox-active product, p-aminophenol. The current derived from the oxidation of the reporter group increased linearly over a wide antibody concentration range (0.001-1 μg mL(-1)), with a detection limit of 1 ng mL(-1) (6.7 pM) for both HIV-1 and HIV-2. This level of sensitivity is clinically relevant, and the feasibility of this approach for clinical sample testing was also evaluated with HIV clinical patient samples, with excellent performance observed compared against a commercially available gold standard. This approach was used to develop the first electrochemical enzyme-linked immunosorbent assay (ELISA) to detect HIV in clinical samples, and excellent performance relative to a gold standard test was achieved.
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Affiliation(s)
- Alyajahan Bhimji
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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Akyilmaz E, Dinçkaya E. A novel non-competitive amperometric immunosensor by using thiourea-glutaraldehyde-modified gold electrode for immunoglobulin M detection. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2013; 41:389-94. [PMID: 23363437 DOI: 10.3109/21691401.2012.761227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A novel non-competitive amperometric immunosensor based on a self-assembled monolayer (SAM) of thiourea modified by a polymeric Schiff's base of glutaraldehyde on gold electrode has been developed for determination of IgM. Alkaline phosphatase (ALP)-conjugated monoclonal anti-mouse immunoglobulin M (IgM) antibody was selectively bound to IgM molecules onto the surface of the electrode. Electrochemical response arising from the catalytic reaction of alkaline phosphatase enzyme. Its reaction with various phosphates such as p-aminophenyl phosphate and p-nitrophenyl phosphatase (p-NPP) generates the electrochemically active products p-aminophenol (p-AP) and p-nitrophenol (p-NP), respectively.
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Affiliation(s)
- Erol Akyilmaz
- Department of Biochemistry, Faculty of Science, Ege University , Bornova-Izmir/Turkey
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Santos IC, Mesquita RB, Bordalo AA, Rangel AO. Use of solid phase extraction for the sequential injection determination of alkaline phosphatase activity in dynamic water systems. Talanta 2012; 98:203-10. [DOI: 10.1016/j.talanta.2012.06.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 06/20/2012] [Accepted: 06/25/2012] [Indexed: 11/26/2022]
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12
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Liu JM, Lin LP, Jiao L, Cui ML, Wang XX, Zhang LH, Zheng ZY. CdS/TiO2–fluorescein isothiocyanate nanoparticles as fluorescence resonance energy transfer probe for the determination of trace alkaline phosphatase based on affinity adsorption assay. Talanta 2012; 98:137-44. [DOI: 10.1016/j.talanta.2012.06.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 06/22/2012] [Accepted: 06/24/2012] [Indexed: 11/26/2022]
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13
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RU SP, WU J, YING YB, JI F. Electrochemical Detection of Alkaline Phosphatase Using Ionic Liquid Modified Carbon Nanotubes Electrode. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.1016/s1872-2040(11)60552-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Boateng A, Brajter-Toth A. Nanomolar detection of p-nitrophenol via in situ generation of p-aminophenol at nanostructured microelectrodes. Analyst 2012; 137:4531-8. [DOI: 10.1039/c2an35811e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Yorganci E, Akyilmaz E. Alkaline phosphatase based amperometric biosensor immobilized by cysteamine-glutaraldehyde modified self-assembled monolayer. ACTA ACUST UNITED AC 2011; 39:317-23. [PMID: 21663400 DOI: 10.3109/10731199.2011.563363] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Alkaline phosphatase (ALP) was immobilized with cross-linking agents glutaraldehyde and cysteamine by forming a self-assembled monolayer on a screen printed gold electrode. ALP converts p-nitrophenyl phosphate to p-nitrophenol and phosphate. p-Nitrophenol loses H(+) ion and turns into the negatively charged compound p-nitrophenolate at medium pH. As a result, the unstable product formed is measured chronoamperometrically at an application potential of + 0.95 V. The biosensor response depends linearly on p-nitrophenyl phosphate concentration between 0.05 - 0.6 mM with a response time of 40 seconds. Detection limit of the biosensor is 0.033 mM.
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Affiliation(s)
- Emine Yorganci
- Department of Biochemistry, Ege University, Bornova-Izmir, Turkey
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Ganranoo L, Mishra SK, Azad AK, Shigihara A, Dasgupta PK, Breitbach ZS, Armstrong DW, Grudpan K, Rappenglueck B. Measurement of nitrophenols in rain and air by two-dimensional liquid chromatography-chemically active liquid core waveguide spectrometry. Anal Chem 2010; 82:5838-43. [PMID: 20518471 DOI: 10.1021/ac101015y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a novel system to analyze atmospheric nitrophenols (NPs). Rain or air sample extracts (1 mL) are preconcentrated on a narrow bore (2 mm) aliphatic anion exchanger. In the absence of strong retention of NPs exhibited by aromatic ion exchangers, retained NPs are eluted as a plug by injection of 100 microL of 0.1 M Na(2)SO(4) on to a short (2 x 50 mm) reverse phase C-18 column packed with 2.2 mum particles. The salt plug passes through the C-18 column unretained while the NPs are separated by an ammonium acetate buffered methanol-water eluent, compatible with mass spectrometry (MS). The eluted NPs are measured with a long path Teflon AF-based liquid core waveguide (0.15 x 1420 mm) illuminated by a 403 nm light emitting diode and detected by a monolithic photodiode-operational amplifier. The waveguide is rendered chemically active by suspending it over concentrated ammonia that permeates into the lumen. The NPs ionize to the yellow anion form (lambda(max) approximately 400 nm). The separation of 4-nitrophenol, 2,4-dinitrophenol, 2-methyl-4-nitrophenol, 3-methyl-4-nitrophenol, and 2-nitrophenol (these are the dominant NPs, typically in that order, in both rain and air of Houston and Arlington, TX, confirmed by tandem MS) takes just over 5 min with respective S/N = 3 limits of detection (LODs) of 60, 12, 30, 67, and 23 pg/mL compared to MS/MS LODs of 20, 49, 11, 20, and 210 pg/mL. Illustrative air and rain data are presented.
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Affiliation(s)
- Lucksagoon Ganranoo
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019-0065, USA
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Liu JM, Gao H, Li FM, Shi XM, Lin CQ, Lin LP, Wang XX, Li ZM. Determination of trace alkaline phosphatase by affinity adsorption solid substrate room temperature phosphorimetry based on wheat germ agglutinin labeled with 8-quinolineboronic acid phosphorescent molecular switch and prediction of diseases. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 76:446-451. [PMID: 20452816 DOI: 10.1016/j.saa.2009.12.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Revised: 10/19/2009] [Accepted: 12/07/2009] [Indexed: 05/29/2023]
Abstract
The 8-quinolineboronic acid phosphorescent molecular switch (abbreviated as PMS-8-QBA. Thereinto, 8-QBA is 8-quinolineboronic acid, and PMS is phosphorescent molecular switch) was found for the first time. PMS-8-QBA, which was in the "off" state, could only emit weak room temperature phosphorescence (RTP) on the acetyl cellulose membrane (ACM). However, PMS-8-QBA turned "on" automatically for its changed structure, causing that the RTP of 8-QBA in the system increased, after PMS-8-QBA-WGA (WGA is wheat germ agglutinin) was formed by reaction between -OH of PMS-8-QBA and -COOH of WGA. More interesting is that the -NH(2) of PMS-8-QBA-WGA could react with the -COOH of alkaline phosphatase (AP) to form the affinity adsorption (AA) product WGA-AP-WGA-8-QBA-PMS (containing -NH-CO- bond), which caused RTP of the system to greatly increase. Thus, affinity adsorption solid substrate room temperature phosphorimetry using PMS-8-QBA as labelling reagent (PMS-8-QBA-AA-SSRTP) for the determination of trace AP was established. The method had many advantages, such as high sensitivity (the detection limit (LD) was 2.5zgspot(-1). For sample volume of 0.40mulspot(-1), corresponding concentration was 6.2x10(-18)gml(-1)), good selectivity (the allowed concentration of coexisting material was higher, when the relative error was +/-5%), high accuracy (applied to detection of AP content in serum samples, the result was coincided with those obtained by enzyme-linked immunoassay), which was suitable for the detection of trace AP content in serum samples and the forecast of human diseases. Meanwhile, the mechanism of PMS-8-QBA-AASSRTP was discussed. The new field of analytical application and clinic diagnosis technique of molecule switch are exploited, based on the phosphorescence characteristic of PMS-8-QBA, the AA reaction between WGA and AP, as well as the relation between AP content and human diseases. The research results promote the development and interpenetrate among molecule switch technique, lectin science and SSRTP.
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Affiliation(s)
- Jia-Ming Liu
- Department of Chemistry and Environmental Science, Zhangzhou Normal College, Zhangzhou 363000, PR China.
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Akyilmaz E, Turemis M. An inhibition type alkaline phosphatase biosensor for amperometric determination of caffeine. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.04.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Liu JM, Rao Y, Chen L, Wang XX, Lin LP, Lin CQ, Zhang LH, Ou-Yang Y. A New Phosphorimetry for the Determination of Trace Alkaline Phosphatase Using Multi-wall Carbon Nanotubes and Its Diagnosis of Human Diseases. J Fluoresc 2010; 20:933-41. [DOI: 10.1007/s10895-010-0639-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2009] [Accepted: 03/16/2010] [Indexed: 11/25/2022]
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Plata MR, Contento AM, Ríos A. State-of-the-art of (bio)chemical sensor developments in analytical Spanish groups. SENSORS (BASEL, SWITZERLAND) 2010; 10:2511-76. [PMID: 22319260 PMCID: PMC3274191 DOI: 10.3390/s100402511] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 02/03/2010] [Accepted: 02/28/2010] [Indexed: 11/16/2022]
Abstract
(Bio)chemical sensors are one of the most exciting fields in analytical chemistry today. The development of these analytical devices simplifies and miniaturizes the whole analytical process. Although the initial expectation of the massive incorporation of sensors in routine analytical work has been truncated to some extent, in many other cases analytical methods based on sensor technology have solved important analytical problems. Many research groups are working in this field world-wide, reporting interesting results so far. Modestly, Spanish researchers have contributed to these recent developments. In this review, we summarize the more representative achievements carried out for these groups. They cover a wide variety of sensors, including optical, electrochemical, piezoelectric or electro-mechanical devices, used for laboratory or field analyses. The capabilities to be used in different applied areas are also critically discussed.
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Affiliation(s)
- María Reyes Plata
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
| | - Ana María Contento
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
| | - Angel Ríos
- Department of Analytical Chemistry and Food Technology, Faculty of Chemistry, University of Castilla, La Mancha, 13004, Ciudad Real, Spain; E-Mails: (M.R.P.); (A.M.C.)
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Santiago LM, Bejarano-Nosas D, Lozano-Sanchez P, Katakis I. Screen-printed microsystems for the ultrasensitive electrochemical detection of alkaline phosphatase. Analyst 2010; 135:1276-81. [DOI: 10.1039/c0an00001a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liu J, Li F, Lin S, Li Z, Chen Y, Lin H, Huang L, Cai J, Chen X. Solid Substrate Room Temperature Phosphorimetry for the Determination of Trace Mercury Based on the Reaction between Alkaline Phosphatase and Mercury Using Triton X-100 as a Sensitizer. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.200990301] [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]
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Electrochemical study and flow injection analysis of paracetamol in pharmaceutical formulations based on screen-printed electrodes and carbon nanotubes. Anal Chim Acta 2009; 638:133-8. [PMID: 19327451 DOI: 10.1016/j.aca.2009.02.019] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Revised: 02/11/2009] [Accepted: 02/16/2009] [Indexed: 11/22/2022]
Abstract
Acetaminophenol or paracetamol is one of the most commonly used analgesics in pharmaceutical formulations. Acetaminophen is electroactive and voltammetric mechanistic studies for the electrode processes of the acetaminophenol/N-acetyl-p-quinoneimine redox system are presented. Carbon nanotubes modified screen-printed electrodes with enhanced electron transfer properties are used for the study of the electrochemical-chemical oxidation mechanism of paracetamol at pH 2.0. Quantitative analysis of paracetamol by using its oxidation process (in a Britton-Robinson buffer solution pH 10.0) at +0.20 V (vs. an Ag pseudoreference electrode) on an untreated screen-printed carbon electrode (SPCE) was carried out. Thus, a cyclic voltammetric based reproducible determination of acetaminophen (R.S.D., 2.2%) in the range 2.5x10(-6) M to 1x10(-3) M, was obtained. However, when SPCEs are used as amperometric detectors coupled to a flow injection analysis (FIA) system, the detection limit achieved for paracetamol was 1x10(-7) M, one order of magnitude lower than that obtained by voltammetric analysis. The repeatability of the amperometric detection with the same SPCE is 2% for 15 successive injections of 10(-5) M acetaminophen and do not present any memory effect. Finally, the applicability of using screen-printed carbon electrodes for the electrochemical detection of paracetamol (i.e. for quality control analysis) was demonstrated by using two commercial pharmaceutical products.
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Multiwalled carbon nanotube modified screen-printed electrodes for the detection of p-aminophenol: Optimisation and application in alkaline phosphatase-based assays. Anal Chim Acta 2008; 615:30-8. [DOI: 10.1016/j.aca.2008.03.034] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 03/13/2008] [Accepted: 03/14/2008] [Indexed: 11/22/2022]
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