Controlling the Carbon-Bio Interface via Glycan Functional Adlayers for Applications in Microbial Fuel Cell Bioanodes
| Autor: | Paula E. Colavita, Eoin M. Scanlan, Frédéric Barrière, Timothé Philippon, Adam Myles, Alessandro Iannaci |
|---|---|
| Přispěvatelé: | Trinity College Dublin, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 799175 (HiBriCarbon). The results of this publication reflect only the authors’ views and the Commission is not responsible for any use that may be made of the information it contains. This publication has also emanated from research conducted with the financial support of Science Foundation Ireland under Grant No. 13/CDA/2213 and 19/FFP/6761. The authors thank the France-Ireland PHC ULYSSES programme for support, project 36028UB. F.B. thanks Rennes Métropole for the co-funding of a Quartz Crystal Microbalance. T.P. thanks Région Bretagne for the co-funding of his PhD., Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Microbial fuel cell
microbial fuel cells Bioelectric Energy Sources Pharmaceutical Science chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrocatalyst 01 natural sciences Article Analytical Chemistry QD241-441 bioanodes Polysaccharides Drug Discovery electrocatalysis [CHIM]Chemical Sciences Graphite Physical and Theoretical Chemistry Electrodes carbon Organic Chemistry Adhesiveness Quartz crystal microbalance 021001 nanoscience & nanotechnology 6. Clean water 0104 chemical sciences Anode aryldiazonium Chemical engineering chemistry Chemistry (miscellaneous) Biofilms Electrode Molecular Medicine Surface modification functionalization 0210 nano-technology Carbon Hydrophobic and Hydrophilic Interactions bioelectrochemical systems |
| Zdroj: | Molecules Molecules, MDPI, 2021, 26 (16), ⟨10.3390/molecules26164755⟩ Volume 26 Issue 16 Molecules, 2021, 26 (16), ⟨10.3390/molecules26164755⟩ Molecules, Vol 26, Iss 4755, p 4755 (2021) |
| ISSN: | 1420-3049 |
| DOI: | 10.3390/molecules26164755⟩ |
| Popis: | International audience; Surface modification of electrodes with glycans was investigated as a strategy for modulating the development of electrocatalytic biofilms for microbial fuel cell applications. Covalent attachment of phenyl-mannoside and phenyl-lactoside adlayers on graphite rod electrodes was achieved via electrochemically assisted grafting of aryldiazonium cations from solution. To test the effects of the specific bio-functionalities, modified and unmodified graphite rods were used as anodes in two-chamber microbial fuel cell devices. Devices were set up with wastewater as inoculum and acetate as nutrient and their performance, in terms of output potential (open circuit and 1 kΩ load) and peak power output, was monitored over two months. The presence of glycans was found to lead to significant differences in startup times and peak power outputs. Lactosides were found to inhibit the development of biofilms when compared to bare graphite. Mannosides were found, instead, to promote exoelectrogenic biofilm adhesion and anode colonization, a finding that is supported by quartz crystal microbalance experiments in inoculum media. These differences were observed despite both adlayers possessing thickness in the nm range and similar hydrophilic character. This suggests that specific glycan-mediated bioaffinity interactions can be leveraged to direct the development of biotic electrocatalysts in bioelectrochemical systems and microbial fuel cell devices. |
| Databáze: | OpenAIRE |
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