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Tavahodi M, Ortiz R, Schulz C, Ekhtiari A, Ludwig R, Haghighi B, Gorton L. Direct Electron Transfer of Cellobiose Dehydrogenase on Positively Charged Polyethyleneimine Gold Nanoparticles. Chempluschem 2016; 82:546-552. [PMID: 31961594 DOI: 10.1002/cplu.201600453] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/07/2016] [Indexed: 01/24/2023]
Abstract
Efficient conjugation between biomolecules and electrode materials is one of the main challenges in the field of biosensors. Cellobiose dehydrogenase (CDH) is a monomeric enzyme, which consists of two separate domains: one catalytic dehydrogenase domain (DHCDH ) carrying strongly bound flavin adenine dinucleotide (FAD) in the active site and a cytochrome domain (CYTCDH ) carrying a b-type heme connected by a flexible linker region. Herein, we report on the development of a lactose biosensor, based on direct electron transfer (DET) from CDH from Phanerochaete sordida (PsCDH) electrostatically attached onto polyethyleneimine-stabilized gold nanoparticles (PEI@AuNPs) used to cover a conventional polycrystalline solid gold disk electrode. PEI@AuNPs were synthesized in aqueous solution using PEI as reducing agent for AuIII and as stabilizer for the nanoparticles. The heterogeneous electron-transfer (ET) rate (ks ) for the redox reaction of immobilized PsCDH at the modified electrodes was calculated based on the Laviron theory and was found to be (39.6±2.5) s-1 . The proposed lactose biosensor exhibits good long term stability as well as high and reproducible sensitivity to lactose with a response time less than 5 s and a linear range from 1 to 100 μm.
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Affiliation(s)
- Mojtaba Tavahodi
- Department of Analytical Chemistry, Biochemistry and Structural Biology, Lund University, P.O. Box 124, 22100, Lund, Sweden.,Department of Chemistry, Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-1159, Gava Zang, Zanjan, 45195-1159, Iran
| | - Roberto Ortiz
- Department of Analytical Chemistry, Biochemistry and Structural Biology, Lund University, P.O. Box 124, 22100, Lund, Sweden
| | - Christopher Schulz
- Department of Analytical Chemistry, Biochemistry and Structural Biology, Lund University, P.O. Box 124, 22100, Lund, Sweden
| | - Ali Ekhtiari
- Department of Analytical Chemistry, Biochemistry and Structural Biology, Lund University, P.O. Box 124, 22100, Lund, Sweden
| | - Roland Ludwig
- Department of Food Sciences and Technology, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190, Wien, Austria
| | - Behzad Haghighi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-1159, Gava Zang, Zanjan, 45195-1159, Iran.,Department of Chemistry, Shiraz University, Shiraz, 71454, Iran
| | - Lo Gorton
- Department of Analytical Chemistry, Biochemistry and Structural Biology, Lund University, P.O. Box 124, 22100, Lund, Sweden
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Schulz C, Ludwig R, Gorton L. Polyethyleneimine as a Promoter Layer for the Immobilization of Cellobiose Dehydrogenase from Myriococcum thermophilum on Graphite Electrodes. Anal Chem 2014; 86:4256-63. [DOI: 10.1021/ac403957t] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Christopher Schulz
- Department
of Analytical Chemistry/Biochemistry and Structural Biology, Lund University, P.O.
Box 124, Lund, Scania SE-22100, Sweden
| | - Roland Ludwig
- Food
Biotechnology Laboratory, Department of Food Sciences and Technology, BOKU University of Natural Resources and Life Sciences Vienna, Muthgasse 18, Wien A-1190, Austria
| | - Lo Gorton
- Department
of Analytical Chemistry/Biochemistry and Structural Biology, Lund University, P.O.
Box 124, Lund, Scania SE-22100, Sweden
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Ludwig R, Ortiz R, Schulz C, Harreither W, Sygmund C, Gorton L. Cellobiose dehydrogenase modified electrodes: advances by materials science and biochemical engineering. Anal Bioanal Chem 2013; 405:3637-58. [PMID: 23329127 PMCID: PMC3608873 DOI: 10.1007/s00216-012-6627-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/27/2012] [Accepted: 12/03/2012] [Indexed: 12/30/2022]
Abstract
The flavocytochrome cellobiose dehydrogenase (CDH) is a versatile biorecognition element capable of detecting carbohydrates as well as quinones and catecholamines. In addition, it can be used as an anode biocatalyst for enzymatic biofuel cells to power miniaturised sensor-transmitter systems. Various electrode materials and designs have been tested in the past decade to utilize and enhance the direct electron transfer (DET) from the enzyme to the electrode. Additionally, mediated electron transfer (MET) approaches via soluble redox mediators and redox polymers have been pursued. Biosensors for cellobiose, lactose and glucose determination are based on CDH from different fungal producers, which show differences with respect to substrate specificity, pH optima, DET efficiency and surface binding affinity. Biosensors for the detection of quinones and catecholamines can use carbohydrates for analyte regeneration and signal amplification. This review discusses different approaches to enhance the sensitivity and selectivity of CDH-based biosensors, which focus on (1) more efficient DET on chemically modified or nanostructured electrodes, (2) the synthesis of custom-made redox polymers for higher MET currents and (3) the engineering of enzymes and reaction pathways. Combination of these strategies will enable the design of sensitive and selective CDH-based biosensors with reduced electrode size for the detection of analytes in continuous on-site and point-of-care applications.
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Affiliation(s)
- Roland Ludwig
- Food Biotechnology Laboratory, Department of Food Sciences and Technology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Roberto Ortiz
- Department of Analytical Chemistry/Biochemistry and Structural Biology, Lund University, P.O. Box 124, 226 46 Lund, Sweden
| | - Christopher Schulz
- Department of Analytical Chemistry/Biochemistry and Structural Biology, Lund University, P.O. Box 124, 226 46 Lund, Sweden
| | - Wolfgang Harreither
- Food Biotechnology Laboratory, Department of Food Sciences and Technology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Christoph Sygmund
- Food Biotechnology Laboratory, Department of Food Sciences and Technology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 18, 1190 Vienna, Austria
| | - Lo Gorton
- Department of Analytical Chemistry/Biochemistry and Structural Biology, Lund University, P.O. Box 124, 226 46 Lund, Sweden
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Trybała A, Szyk-Warszyńska L, Warszyński P. The effect of anchoring PEI layer on the build-up of polyelectrolyte multilayer films at homogeneous and heterogeneous surfaces. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.01.039] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Disposable DNA biosensor with the carbon nanotubes–polyethyleneimine interface at a screen-printed carbon electrode for tests of DNA layer damage by quinazolines. Anal Bioanal Chem 2009; 394:855-61. [DOI: 10.1007/s00216-009-2740-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Revised: 02/26/2009] [Accepted: 03/04/2009] [Indexed: 10/21/2022]
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Sima V, Cristea C, Lăpăduş F, Marian I, Marian A, Săndulescu R. Electroanalytical properties of a novel biosensor modified with zirconium alcoxide porous gels for the detection of acetaminophen. J Pharm Biomed Anal 2008; 48:1195-200. [DOI: 10.1016/j.jpba.2008.08.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 07/28/2008] [Accepted: 08/03/2008] [Indexed: 10/21/2022]
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