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Zhou L, Huber DE, van Antwerp B, Pennathur S. Electrooxidation of Phenol on Polyelectrolyte Modified Carbon Electrodes for Use in Insulin Pump Infusion Sets. J Diabetes Sci Technol 2024; 18:625-634. [PMID: 36112811 PMCID: PMC11089874 DOI: 10.1177/19322968221123083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Many type 1 diabetes patients using continuous subcutaneous insulin infusion (CSII) suffer from the phenomenon of unexplained hypoglycemia or "site loss." Site loss is hypothesized to be caused by toxic excipients, for example, phenolic compounds within insulin formulations that are used as preservatives and stabilizers. Here, we develop a bioinspired polyelectrolyte-modified carbon electrode for effective electrooxidative removal of phenol from insulin and eventual incorporations into an infusion set of a CSII device. METHODS We modified a carbon screen printed electrode (SPE) with poly-L-lysine (PLL) to avoid passivation due to polyphenol deposition while still removing phenolic compounds from insulin injections. We characterized these electrodes using scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS) and compared their data with data from bare SPEs. Furthermore, we performed electrochemical measurements to determine the extent of passivation, and high-performance liquid chromatography (HPLC) measurements to confirm both the removal of phenol and the integrity of insulin after phenol removal. RESULTS Voltammetry measurements show that electrode passivation due to polyphenol deposition is reduced by a factor of 2X. HPLC measurements confirm a 10x greater removal of phenol by our modified electrodes relative to bare electrodes. CONCLUSION Using bioinspired polyelectrolytes to modify a carbon electrode surface aids in the electrooxidation of phenolic compounds from insulin and is a step toward integration within an infusion set for mitigating site loss.
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Affiliation(s)
- Lingyun Zhou
- Department of Mechanical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA
| | - David E. Huber
- Department of Mechanical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA
| | | | - Sumita Pennathur
- Department of Mechanical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA
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Bioanalytical System for Determining the Phenol Index Based on Pseudomonas putida BS394(pBS216) Bacteria Immobilized in a Redox-Active Biocompatible Composite Polymer "Bovine Serum Albumin-Ferrocene-Carbon Nanotubes". Polymers (Basel) 2022; 14:polym14245366. [PMID: 36559732 PMCID: PMC9786156 DOI: 10.3390/polym14245366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/06/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
The possibility of using the microorganisms Pseudomonas sp. 7p-81, Pseudomonas putida BS394(pBS216), Rhodococcus erythropolis s67, Rhodococcus pyridinivorans 5Ap, Rhodococcus erythropolis X5, Rhodococcus pyridinivorans F5 and Pseudomonas veronii DSM 11331T as the basis of a biosensor for the phenol index to assess water environments was studied. The adaptation of microorganisms to phenol during growth was carried out to increase the selectivity of the analytical system. The most promising microorganisms for biosensor formation were the bacteria P. putida BS394(pBS216). Cells were immobilized in redox-active polymers based on bovine serum albumin modified by ferrocenecarboxaldehyde and based on a composite with a carbon nanotube to increase sensitivity. The rate constants of the interaction of the redox-active polymer and the composite based on it with the biomaterial were 193.8 and 502.8 dm3/(g·s) respectively. For the biosensor created using hydrogel bovine serum albumin-ferrocene-carbon nanotubes, the lower limit of the determined phenol concentrations was 1 × 10-3 mg/dm3, the sensitivity coefficient was (5.8 ± 0.2)∙10-3 μA·dm3/mg, Michaelis constant KM = 230 mg/dm3, the maximum rate of the enzymatic reaction Rmax = 217 µA and the long-term stability of the bioanalyzer was 11 days. As a result of approbation, it was found that the urban water phenol content differed insignificantly, measured by creating a biosensor and using the standard photometric method.
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Sen R, Das S, Nath A, Maharana P, Kar P, Verpoort F, Liang P, Roy S. Electrocatalytic Water Oxidation: An Overview With an Example of Translation From Lab to Market. Front Chem 2022; 10:861604. [PMID: 35646820 PMCID: PMC9131097 DOI: 10.3389/fchem.2022.861604] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/30/2022] [Indexed: 12/03/2022] Open
Abstract
Water oxidation has become very popular due to its prime role in water splitting and metal–air batteries. Thus, the development of efficient, abundant, and economical catalysts, as well as electrode design, is very demanding today. In this review, we have discussed the principles of electrocatalytic water oxidation reaction (WOR), the electrocatalyst and electrode design strategies for the most efficient results, and recent advancement in the oxygen evolution reaction (OER) catalyst design. Finally, we have discussed the use of OER in the Oxygen Maker (OM) design with the example of OM REDOX by Solaire Initiative Private Ltd. The review clearly summarizes the future directions and applications for sustainable energy utilization with the help of water splitting and the way forward to develop better cell designs with electrodes and catalysts for practical applications. We hope this review will offer a basic understanding of the OER process and WOR in general along with the standard parameters to evaluate the performance and encourage more WOR-based profound innovations to make their way from the lab to the market following the example of OM REDOX.
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Affiliation(s)
- Rakesh Sen
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Supriya Das
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Aritra Nath
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Priyanka Maharana
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Pradipta Kar
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
| | - Francis Verpoort
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, China
- Center for Environmental and Energy Research, Ghent University Global Campus, Incheon, South Korea
- *Correspondence: Francis Verpoort, ; Pei Liang, ; Soumyajit Roy,
| | - Pei Liang
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
- *Correspondence: Francis Verpoort, ; Pei Liang, ; Soumyajit Roy,
| | - Soumyajit Roy
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
- *Correspondence: Francis Verpoort, ; Pei Liang, ; Soumyajit Roy,
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Wlodkowic D, Karpiński TM. Live-Cell Systems in Real-Time Biomonitoring of Water Pollution: Practical Considerations and Future Perspectives. SENSORS 2021; 21:s21217028. [PMID: 34770335 PMCID: PMC8588540 DOI: 10.3390/s21217028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 12/14/2022]
Abstract
Continuous monitoring and early warning of potential water contamination with toxic chemicals is of paramount importance for human health and sustainable food production. During the last few decades there have been noteworthy advances in technologies for the automated sensing of physicochemical parameters of water. These do not translate well into online monitoring of chemical pollutants since most of them are either incapable of real-time detection or unable to detect impacts on biological organisms. As a result, biological early warning systems have been proposed to supplement conventional water quality test strategies. Such systems can continuously evaluate physiological parameters of suitable aquatic species and alert the user to the presence of toxicants. In this regard, single cellular organisms, such as bacteria, cyanobacteria, micro-algae and vertebrate cell lines, offer promising avenues for development of water biosensors. Historically, only a handful of systems utilising single-cell organisms have been deployed as established online water biomonitoring tools. Recent advances in recombinant microorganisms, cell immobilisation techniques, live-cell microarrays and microfluidic Lab-on-a-Chip technologies open new avenues to develop miniaturised systems capable of detecting a broad range of water contaminants. In experimental settings, they have been shown as sensitive and rapid biosensors with capabilities to detect traces of contaminants. In this work, we critically review the recent advances and practical prospects of biological early warning systems based on live-cell biosensors. We demonstrate historical deployment successes, technological innovations, as well as current challenges for the broader deployment of live-cell biosensors in the monitoring of water quality.
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Affiliation(s)
- Donald Wlodkowic
- The Neurotox Laboratory, School of Science, RMIT University, Plenty Road, P.O. Box 71, Bundoora, VIC 3083, Australia
- Correspondence: ; Tel.: +61-3-9925-7157; Fax: +61-3-9925-7110
| | - Tomasz M. Karpiński
- Chair and Department of Medical Microbiology, Poznań University of Medical Sciences, Wieniawskiego 3, 61-712 Poznań, Poland;
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5
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Ge L, Li SP, Lisak G. Advanced sensing technologies of phenolic compounds for pharmaceutical and biomedical analysis. J Pharm Biomed Anal 2020; 179:112913. [DOI: 10.1016/j.jpba.2019.112913] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/10/2019] [Accepted: 10/05/2019] [Indexed: 11/17/2022]
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6
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Maximino MD, Martin CS, Paulovich FV, Alessio P. Layer-by-Layer Thin Film of Iron Phthalocyanine as a Simple and Fast Sensor for Polyphenol Determination in Tea Samples. J Food Sci 2016; 81:C2344-C2351. [DOI: 10.1111/1750-3841.13394] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 06/02/2016] [Accepted: 06/17/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Mateus Dassie Maximino
- Dept. de Física, Faculdade de Ciências e Tecnologia (FCT); UNESP Univ Estadual Paulista; Presidente Prudente SP 19060-900 Brazil
| | - Cibely Silva Martin
- Dept. de Física, Faculdade de Ciências e Tecnologia (FCT); UNESP Univ Estadual Paulista; Presidente Prudente SP 19060-900 Brazil
| | - Fernando Vieira Paulovich
- Inst. for Mathematics and Computer Science (ICMC); Univ. of São Paulo (USP); São Carlos SP CP 668, 13560-970 Brazil
| | - Priscila Alessio
- Dept. de Física, Faculdade de Ciências e Tecnologia (FCT); UNESP Univ Estadual Paulista; Presidente Prudente SP 19060-900 Brazil
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7
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Kavanoz M, Pekmez NÖ, Can M. Investigation of the behavior of hydrogen-bonded phenolic compounds and their determination by using poly(vinylferrocenium)-polyaniline composite film. J Appl Polym Sci 2016. [DOI: 10.1002/app.43596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Muammer Kavanoz
- Department of Chemistry; Recep Tayyip Erdogan University; 53100 Rize Turkey
| | | | - Muzaffer Can
- Department of Chemistry; Kırıkkale University; 71450 Kırıkkale Turkey
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8
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Novel phenol biosensor based on laccase immobilized on reduced graphene oxide supported palladium–copper alloyed nanocages. Biosens Bioelectron 2015; 74:347-52. [DOI: 10.1016/j.bios.2015.06.060] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/15/2015] [Accepted: 06/25/2015] [Indexed: 01/05/2023]
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9
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Montagnolli RN, Lopes PRM, Bidoia ED. Screening the toxicity and biodegradability of petroleum hydrocarbons by a rapid colorimetric method. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 68:342-353. [PMID: 25537922 DOI: 10.1007/s00244-014-0112-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 11/27/2014] [Indexed: 06/04/2023]
Abstract
Crude oil and petroleum products have a wide variety of hazardous components with high toxicity and low biodegradability. Certain dyes change their colors by intercepting electron transfer reactions during the transformation processes. This study applied resazurin and 2,6-dichlorophenol-indophenol indicators for a rapid screening biodegradation capability and toxicity response to various petroleum products such as motor oil, diesel, gasoline, and phenol. Colorimetry tests were performed in test tubes, and the absorbance values were measured over time. We observed different discoloration profiles after degradation tests using Bacillus subtilis inoculum. Phytotoxicity assays were also performed to compare colorimetric screening assays with a conventional toxicity testing with plants (seed germination). The results indicated that biotransformation of oils can increase its overall toxicity. Intermediate byproducts can be formed through biodegradation and thereby increase the toxicity of oils. The assessment of acute toxicity has shown that phenol is extremely toxic to petroleum-biodegrading microbial communities. Low molecular-weight gasoline was considered biodegradable, but it also exhibited a high acute toxic effect, mainly due to its high solubility and the presence of more volatile compounds that can penetrate cells and potentially damage cellular structures.
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Affiliation(s)
- Renato Nallin Montagnolli
- Departamento de Bioquímica e Microbiologia, Instituto de Biociências, UNESP - University Estadual Paulista, Avenida 24 A, 1515 - Bela Vista, Rio Claro, SP, CEP 13506-900, Brazil
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10
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Kavanoz M, Bük U, Ülker E. Determination of hydroquinone using poly(3-methylthiophene) synthesized electrochemically on pt electrode in methylene chloride. J Appl Polym Sci 2014. [DOI: 10.1002/app.40859] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Muammer Kavanoz
- Department of Chemistry; Faculty of Sciences and Arts; Recep Tayyip Erdoğan University; Rize 53100 Turkey
| | - Ufuk Bük
- Department of Chemistry; Faculty of Sciences and Arts; Recep Tayyip Erdoğan University; Rize 53100 Turkey
| | - Emine Ülker
- Department of Chemistry; Faculty of Sciences and Arts; Recep Tayyip Erdoğan University; Rize 53100 Turkey
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11
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Congdon RB, Feldberg AS, Ben-Yakar N, McGee D, Ober C, Sammakia B, Sadik OA. Early detection of Candida albicans biofilms at porous electrodes. Anal Biochem 2013; 433:192-201. [DOI: 10.1016/j.ab.2012.10.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 10/10/2012] [Accepted: 10/11/2012] [Indexed: 11/25/2022]
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12
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Kang J, Kim T, Tak Y, Lee JH, Yoon J. Cyclic voltammetry for monitoring bacterial attachment and biofilm formation. J IND ENG CHEM 2012. [DOI: 10.1016/j.jiec.2011.10.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Sagiroglu A, Paluzar H, Ozcan HM, Okten S, Sen B. A novel biosensor based on Lactobacillus acidophilus for determination of phenolic compounds in milk products and wastewater. Prep Biochem Biotechnol 2011; 41:321-36. [PMID: 21967334 DOI: 10.1080/10826068.2010.540607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Different branches of industry need to use phenolic compounds (PCs) in their production, so determination of PCs sensitively, accurately, rapidly, and economically is very important. For the sensitive determination of PCs, some biosensors based on pure polyphenol oxidase, plant tissue and microorganisms were developed before. But there has been no study to develop a microbial phenolic compounds biosensor based on Lactobacillus species, which contain polyphenol oxidase enzyme. In this study, we used different forms of Lactobacillus species as enzyme sources of biosensor and compared biosensor performances of these forms for determination of PCs. For this purpose, we used lyophilized Lactobacillus cells (containing L. bulgaricus, L. acidophilus, Streptococcus thermophilus), pure L. acidophilus, pure L. bulgaricus, and L. acidophilus- and L. bulgaricus adapted to catechol in Lactobacilli MRS Broth. The most suitable form was determined and optimization studies of the biosensor were carried out by using this form. For preparing the bioactive layer of the biosensor, the Lactobacillus cells were immobilized in gelatin by using glutaraldehyde. In the study, we used catechol as a substrate. Phenolic compound determination is based on the assay of the differences on the respiration activity of the cells on the oxygen meter in the absence and the presence of catechol. The microbial biosensor response depends directly on catechol concentration between 0.5 and 5.0 mM with 18 min response time. In the optimization studies of the microbial biosensor the most suitable microorganism amount was found to be 10 mg, and also phosphate buffer (pH 8.0; 50 mM) and 37.5 °C were obtained as the optimum working conditions. In the characterization studies of the microbial biosensor some parameters such as substrate specificity on the biosensor response and operational and storage stability were examine. Furthermore, the determination of PC levels in synthetic wastewater, industrial wastewater, and milk products was investigated by using the developed biosensor under optimum conditions.
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Affiliation(s)
- Ayten Sagiroglu
- Department of Chemistry, Section of Biochemistry, Trakya University, Faculty of Science and Arts, University of Trakya, Edirne, Turkey.
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14
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Poly(vinylferrocenium) perchlorate–polyaniline composite film-coated electrode for amperometric determination of hydroquinone. J Solid State Electrochem 2011. [DOI: 10.1007/s10008-011-1505-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Xu X, Ying Y. Microbial Biosensors for Environmental Monitoring and Food Analysis. FOOD REVIEWS INTERNATIONAL 2011. [DOI: 10.1080/87559129.2011.563393] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Cell-based electrochemical biosensors for water quality assessment. Anal Bioanal Chem 2011; 400:947-64. [PMID: 21424523 DOI: 10.1007/s00216-011-4816-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Revised: 02/11/2011] [Accepted: 02/16/2011] [Indexed: 12/19/2022]
Abstract
During recent decades, extensive industrialisation and farming associated with improper waste management policies have led to the release of a wide range of toxic compounds into aquatic ecosystems, causing a rapid decrease of world freshwater resources and thus requiring urgent implementation of suitable legislation to define water remediation and protection strategies. In Europe, the Water Framework Directive aims to restore good qualitative and quantitative status to all water bodies by 2015. To achieve that, extensive monitoring programmes will be required, calling for rapid, reliable and cost-effective analytical methods for monitoring and toxicological impact assessment of water pollutants. In this context, whole cell biosensors appear as excellent alternatives to or techniques complementary to conventional chemical methods. Cells are easy to cultivate and manipulate, host many enzymes able to catalyse a wide range of biological reactions and can be coupled to various types of transducers. In addition, they are able to provide information about the bioavailability and the toxicity of the pollutants towards eukaryotic or prokaryotic cells. In this article, we present an overview of the use of whole cells, mainly bacteria, yeasts and algae, as sensing elements in electrochemical biosensors with respect to their practical applications in water quality monitoring, with particular emphasis on new trends and future perspectives. In contrast to optical detection, electrochemical transduction is not sensitive to light, can be used for analysis of turbid samples and does not require labelling. In some cases, it is also possible to achieve higher selectivities, even without cell modification, by operating at specific potentials where interferences are limited.
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Odaci D, Timur S, Telefoncu A. Immobilized Jerusalem Artichoke (Helianthus tuberosus) Tissue Electrode for Phenol Detection. ACTA ACUST UNITED AC 2009; 32:315-23. [PMID: 15274436 DOI: 10.1081/bio-120037836] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A tissue based biosensor for the determination of phenol was developed by using Jerusalem artichoke (Helianthus tuberosus) in combination with a dissolved oxygen (DO) probe. The tissue electrode response depends linearly on phenol concentration between 0.002 and 0.0101 microM in 10 min response time. Maximum electrode response was found in phosphate buffer at pH 8.0 and 35 degrees C. The reproducibility of the enzyme electrode was also tested by using standard phenol solutions (0.005 microM). The standard deviation (SD) and variation coefficient (cv) were calculated as +/- 1.4 x 10(-4) microM and 3.1%, respectively.
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Affiliation(s)
- Dilek Odaci
- Department of Biochemistry, Faculty of Science, Ege University, Bornova-Izmir, Turkey
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19
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Obuchowska A. Quantitation of bacteria through adsorption of intracellular biomolecules on carbon paste and screen-printed carbon electrodes and voltammetry of redox-active probes. Anal Bioanal Chem 2008; 390:1361-71. [DOI: 10.1007/s00216-007-1825-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 11/29/2007] [Accepted: 12/20/2007] [Indexed: 10/22/2022]
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20
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Bettaieb F, Ponsonnet L, Lejeune P, Ouada HB, Martelet C, Bakhrouf A, Jaffrézic-Renault N, Othmane A. Immobilization of E. coli bacteria in three-dimensional matrices for ISFET biosensor design. Bioelectrochemistry 2007; 71:118-25. [PMID: 17398167 DOI: 10.1016/j.bioelechem.2007.02.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2006] [Revised: 02/17/2007] [Accepted: 02/19/2007] [Indexed: 11/22/2022]
Abstract
In recent years, cell-based biosensors (CBBs) have been very useful in biomedicine, food industry, environmental monitoring and pharmaceutical screening. They constitute an economical substitute for enzymatic biosensors, but cell immobilization remains a limitation in this technology. To investigate into the potential applications of cell-based biosensors, we describe an electrochemical system based on a microbial biosensor using an Escherichia coli K-12 derivative as a primary transducer to detect biologically active agents. pH variations were recorded by an ion-sensitive field effect transistor (ISFET) sensor on bacteria immobilized in agarose gels. The ISFET device was directly introduced in 100 ml of this mixture or in a miniaturized system using a dialysis membrane that contains 1 ml of the same mixture. The bacterial activity could be detected for several days. The extracellular acidification rate (ECAR) was analyzed with or without the addition of a culture medium or an antibiotic solution. At first, the microorganisms acidified their micro-environment and then they alkalinized it. These two phases were attributed to an apparent substrate preference of bacteria. Cell treatment with an inhibitor or an activator of their metabolism was then monitored and streptomycin effect was tested.
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Affiliation(s)
- F Bettaieb
- CEGELY, UMR-CNRS 5005, Ecole Centrale de Lyon, 69134 Ecully Cedex, France
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Tudorache M, Bala C. Biosensors based on screen-printing technology, and their applications in environmental and food analysis. Anal Bioanal Chem 2007; 388:565-78. [PMID: 17453176 DOI: 10.1007/s00216-007-1293-0] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2007] [Revised: 03/23/2007] [Accepted: 04/03/2007] [Indexed: 11/25/2022]
Abstract
This review summarizes scientific research activity on biosensors, especially screen-printed, electrode-based biosensors. The basic configurations of biosensors based on screen-printing technology are discussed and different procedures for immobilization of the biorecognition component are reviewed. Theoretical aspects are exemplified by practical environmental and food-analysis applications of screen-printed, electrode-based biosensors.
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Affiliation(s)
- Madalina Tudorache
- Laboratory for Quality Control and Process Monitoring, Faculty of Chemistry, University of Bucharest, 4-12 Blvd. Regina Elisabeta, 030018, Bucharest-3, Romania
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Xiao W, Xiao D. Aminopyrene functionalized mesoporous silica for the selective determination of resorcinol. Talanta 2007; 72:1288-92. [PMID: 19071758 DOI: 10.1016/j.talanta.2007.01.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2006] [Revised: 12/30/2006] [Accepted: 01/14/2007] [Indexed: 11/24/2022]
Abstract
Aminopyrene was convalently anchored onto the surface of mesoporous MCM-41 silica by post-grafting. This organic-inorganic hybrid has been applied as sensing material to phenols determination. Experimental results reveal that the functionalized material presents good sensitivity and selectivity towards resorcinol and can be used for resorcinol determination in water at pH 6.0. The fluorescence intensity of aminopyrene functionalized mesoporous silica decreases proportionally to the logarithm of resorcinol concentration in water. The linear range for resorcinol detection lies in 4.79-163muM with a detection limit of 2.86muM (S/N=3).
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Affiliation(s)
- Wenxiang Xiao
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China; Department of Electronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
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Fakunle ES, Aguilar ZP, Shultz JL, Toland AD, Fritsch I. Evaluation of screen-printed gold on low-temperature co-fired ceramic as a substrate for the immobilization of electrochemical immunoassays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:10844-53. [PMID: 17129069 DOI: 10.1021/la061304n] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Screen-printed gold (SPG, Dupont gold conductor 5734) on low-temperature co-fired ceramic (LTCC) materials (Dupont dielectric tape 951, mostly composed of alumina and silica) has been demonstrated to be a substrate for electrochemical enzyme-linked immunosorbant assays. The effect of two different cleaning treatments and the extent of nonspecific adsorption on the SPG/LTCC and plain LTCC surfaces were also evaluated. LTCC materials hold promise for constructing a new generation of devices for microelectrochemical sensing and assays. Facile fabrication in three dimensions with integrated conducting elements makes them attractive. A standard sandwich immunoassay for a model analyte, mouse IgG, was used to evaluate the LTCC materials. After the assembly of components onto chips of SPG/LTCC and plain LTCC, p-aminophenol that was generated enzymatically by the enzyme label was detected electrochemically with a separate glassy carbon electrode. Cleaning SPG/LTCC with a piranha solution (7:1 vol/vol of concentrated H2SO4/30% H2O2), traditionally used for other gold surfaces prior to SAM assembly, resulted in a notable decrease in assay signal and an increase in nonspecific adsorption when compared to cleaning with water alone. Assay components assemble specifically on plain LTCC, with only a small percent attributed to NSA. Environmental scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy reveal the tremendous chemical heterogeneity and complexity of both SPG/LTCC and plain LTCC surfaces and aid in the explanation of assay results. A 10% acetate Tween bovine serum albumin solution and an ethanolic solution of 4 mM 1-butanol eliminate assay signals originating from plain LTCC. The outcomes of these studies can now be used to achieve miniaturized electrochemical immunoassays on LTCC materials where both plain and SPG surfaces are present.
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Affiliation(s)
- Eyitayo S Fakunle
- Department of Chemistry and Biochemistry and Arkansas Analytical Laboratories, University of Arkansas, Fayetteville, Arkansas 72701, USA
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Tizzard AC, Bergsma JH, Lloyd-Jones G. A resazurin-based biosensor for organic pollutants. Biosens Bioelectron 2006; 22:759-63. [PMID: 16487702 DOI: 10.1016/j.bios.2006.01.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2005] [Revised: 12/20/2005] [Accepted: 01/09/2006] [Indexed: 12/01/2022]
Abstract
A new rapid biosensor method employing the dye resazurin as an indicator of bacterial respiration has been developed to provide a rapid, facile and specific biosensor for environmental contaminants that does not rely on genetic modification techniques, is suitable for a high-throughput multiwell format, and is ideally suited to resource-constrained environmental monitoring situations. This whole-cell biosensor has been applied to the test analyte toluene using natural toluene-degrading bacteria as the biological component and is competitive with more complex recombinant approaches. The redox-driven biosensor is dependent on the catabolism of a specific compound, concomitantly reducing the redox indicator resazurin to provide the analytical signal in a whole-cell biosensor assay.
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Affiliation(s)
- Aynsley C Tizzard
- Lincoln Ventures, Lincoln University, PO Box 133, Lincoln 8152, New Zealand
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25
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Lanyon YH, Tothill IE, Mascini M. An Amperometric Bacterial Biosensor Based on Gold Screen‐Printed Electrodes for the Detection of Benzene. ANAL LETT 2006. [DOI: 10.1080/00032710600713784] [Citation(s) in RCA: 6] [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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26
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Mu S. Catechol sensor using poly(aniline-co-o-aminophenol) as an electron transfer mediator. Biosens Bioelectron 2006; 21:1237-43. [PMID: 15978798 DOI: 10.1016/j.bios.2005.05.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Revised: 05/20/2005] [Accepted: 05/20/2005] [Indexed: 11/28/2022]
Abstract
In this work, poly(aniline-co-o-aminophenol) (copolymer) was used as an electron transfer mediator in the electrochemical oxidation of catechol due to its reversible redox over a wide range of pH. The experimental results indicate that the anodic peak potential of catechol at the copolymer electrode is lower than that at the platinum electrode in a solution consisting of catechol and sodium sulfate with pH 5.0, and the activation energy for the electrochemical oxidation of catechol at the copolymer electrode is low (23.6 kJ mol(-1)). These are strong evidence for the electrocatalytic oxidation of catechol at the copolymer electrode. The -OH group on the copolymer chain plays an important role in the electron transfer between the copolymer electrode and catechol in the solution. Based on the catalytic oxidation, the copolymer is used as a sensor to determine the concentration of catechol. The response current of the sensor depends on the concentration of catechol, pH, applied potential and temperature. At 0.55 V (versus saturated calomel reference electrode (SCE)) and pH 5.0, the sensor has a fast response (about 10s) to catechol and good operational stability. The sensor shows a linear response range between 5 and 80 microM catechol with a correlation coefficient of 0.997. It was found that phenol and resorcinol cannot be oxidized at the copolymer electrode at potentials < or =0.55 V, so controlling the sensor potential affords a good way of avoiding the effect of phenol and resorcinol on the determination of catechol.
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Affiliation(s)
- Shaolin Mu
- Department of Chemistry, Yangzhou University, Yangzhou 225002, China
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Du D, Liu S, Chen J, Ju H, Lian H, Li J. Colloidal gold nanoparticle modified carbon paste interface for studies of tumor cell adhesion and viability. Biomaterials 2005; 26:6487-95. [PMID: 15951013 DOI: 10.1016/j.biomaterials.2005.03.048] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2005] [Accepted: 03/29/2005] [Indexed: 11/21/2022]
Abstract
A non-toxic biomimetic interface for immobilization of living cells and electrochemical exogenous effect study of cell viability was constructed by mixing colloidal gold nanoparticles in carbon paste. A new approach to study the effects of anti-tumor drug and other exogenous factors on cell viability was proposed. The nanoparticles were efficient for preserving the activity of immobilized living cells and preventing their leakage from the electrode surface. The immobilized living AsPC-1 cells (pancreatic adenocarcinoma cells derived from ascites) exhibited an irreversible voltammetric response related to the oxidation of guanine. The presence of guanine was verified by liquid chromatography-mass spectrometry. The contents of guanine in cytoplasm of each AsPC-1 and normal pancreatic cell were detected to be 370 and 22amol, respectively. The cytotoxic effect of adriamycin resulted in a decrease in peak current of guanine. The optimal exogenous factors that affected cell viability, including pH, temperature and salt concentration of electrolyte, were just consistent with cell growth conditions in culture. This simple and rapid method could be applied for the electrochemical investigation of exogenous effect and characterization of the viability of living cells.
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Affiliation(s)
- Dan Du
- Key Laboratory of Analytical Chemistry for Life Science (Education Ministry of China), Nanjing University, Nanjing 210093, PR China
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Jantra J, Zilouei H, Liu J, Guieysse B, Thavarungkul P, Kanatharana P, Mattiasson B. Microbial Biosensor for the Analysis of 2,4‐Dichlorophenol. ANAL LETT 2005. [DOI: 10.1081/al-200057192] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kirsch N, Honeychurch K, Hart J, Whitcombe M. Voltammetric Determination of Urinary 1-Hydroxypyrene Using Molecularly Imprinted Polymer-Modified Screen-Printed Carbon Electrodes. ELECTROANAL 2005. [DOI: 10.1002/elan.200403131] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Jimenez-Juarez N, Roman-Miranda R, Baeza A, Sánchez-Amat A, Vazquez-Duhalt R, Valderrama B. Alkali and halide-resistant catalysis by the multipotent oxidase from Marinomonas mediterranea. J Biotechnol 2005; 117:73-82. [PMID: 15831249 DOI: 10.1016/j.jbiotec.2005.01.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2004] [Revised: 12/28/2004] [Accepted: 01/07/2005] [Indexed: 11/24/2022]
Abstract
The incorporation of fungal laccases into novel applications has been delayed mainly due to their intrinsic sensitivity towards halides and alkaline conditions. In order to explore new sources of enzymes we evaluated the multipotent polyphenol oxidase PPO1 from the marine bacterium Marinomonas mediterranea. Here we report that, in contrast to its fungal counterparts, PPO1 remained functional above neutral pH presenting high specificity for phenolic compounds, in particular for methoxyl-substituted mono-phenols and catechols. These properties, in addition to its tolerance towards chloride (up to 1 M) and its elevated redox potential at neutral pH (0.9 V), suggest this enzyme may be an interesting candidate for specific applications such as the Amperometric determination of phenolic compounds and bio-fuel cells.
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Affiliation(s)
- Nuria Jimenez-Juarez
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, AP 510-3, Cuernavaca, Morelos CP 62250, Mexico
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