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Ben Tahar A, Żelechowska K, Biernat JF, Paluszkiewicz E, Cinquin P, Martin D, Zebda A. High catalytic performance of laccase wired to naphthylated multiwall carbon nanotubes. Biosens Bioelectron 2020; 151:111961. [PMID: 31868607 DOI: 10.1016/j.bios.2019.111961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/08/2019] [Accepted: 12/10/2019] [Indexed: 12/31/2022]
Abstract
The direct electrical connection of laccase on the electrode surface is a key feature in the design of efficient and stable biocathodes. However, laccase can perform a direct electron transfer only when it is in the preferred orientation toward the electrode. Here we report the investigation of the orientation of laccase from white rot fungus on multi-walled carbon nanotube surface modified with a naphthalene group. Naphthylated multi wall carbon nanotubes were synthesized and the kinetics of laccase from white rot fungus adsorption and its direct electro-catalytic activity toward oxygen reduction was investigated by QCM and electrochemical techniques. Compared to pristine multi-walled carbon nanotubes laccase shows a high affinity to be adsorbed onto the surface of naphthylated carbon nanotubes at a very fast rate. The subsequent wiring to the naphthylated multi-walled carbon nanotubes is accompanied by a reorientation and arrangement of adsorbed laccase to create a composite biocathode that exhibits a high-performance for oxygen reduction by direct electron transfer with maximum current densities of 3 mA cm-2.
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Affiliation(s)
- A Ben Tahar
- University of Grenoble Alpes, CNRS, INSERM, TIMC-IMAG UMR 5525, Grenoble, 38000, France
| | - K Żelechowska
- Gdansk University of Technology, Fac Appl Phys & Math, Dept Solid State Phys, Narutowicza 11/12, PL-80233, Gdansk, Poland
| | - J F Biernat
- Gdansk University of Technology, Faculty of Chemistry, 80-233, Gdansk, Poland
| | - E Paluszkiewicz
- Gdansk University of Technology, Faculty of Chemistry, 80-233, Gdansk, Poland
| | - P Cinquin
- University of Grenoble Alpes, CNRS, INSERM, TIMC-IMAG UMR 5525, Grenoble, 38000, France
| | - D Martin
- University of Grenoble Alpes, CNRS, INSERM, TIMC-IMAG UMR 5525, Grenoble, 38000, France
| | - A Zebda
- University of Grenoble Alpes, CNRS, INSERM, TIMC-IMAG UMR 5525, Grenoble, 38000, France.
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Gruchata M, Ciećwierz D, Dorniak W, Keita L, Sukiennik A, Sobiczewski W, Skarźyński P, Żelechowska K, Romanowski P, Rynkiewicz A. 104 Deletion polymorphism of the ACE gene is related to history of myocardial infarction but negatively correlates with history of hypertension in patients with coronary heart disease below 50 years of age. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)87525-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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