Real-time monitoring of electrochemically active biofilm developing behavior on bioanode by using EQCM and ATR/FTIR
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http://hdl.handle.net/10045/53174
Títol: | Real-time monitoring of electrochemically active biofilm developing behavior on bioanode by using EQCM and ATR/FTIR |
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Autors: | Liu, Ying | Berná Galiano, Antonio | Climent, Victor | Feliu, Juan M. |
Grups d'investigació o GITE: | Electroquímica de Superficies |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Paraules clau: | Electrochemically active biofilm | Biofilm formation | Cell biomass | EQCM | ATR/FTIR | Microbial fuel cell |
Àrees de coneixement: | Química Física |
Data de publicació: | 31-de març-2015 |
Editor: | Elsevier |
Citació bibliogràfica: | Sensors and Actuators B: Chemical. 2015, 209: 781-789. doi:10.1016/j.snb.2014.12.047 |
Resum: | In the current study, the relationship between current and biomass and bio-adhesion mechanism of electrogenic biofilm on electrode were investigated using EQCM and ATR-SEIRAS linking electrochemistry. The results indicated that cellular biomass of biofilm on QCM-crystal surface showed maximum value of 6.0 μg/cm2 in initial batch and 11.5 μg/cm2 in the second batch on mature biofilm, producing a similar maximum current density of 110 μA/μg. Especially, the optimum cell biomass linking high electricity production ratio (110 μA/μg) occurred before maximum biomass coming, implying that over-growth mature biofilm is not an optimum state for enhancing power output of MFCs. On the other hand, the spectra using ATR-SEIRAS technique linking electrochemistry obviously exhibited water structure adsorption change at early biofilm formation and meanwhile the water adsorption accompanied the adsorbed bacteria and the bound cells population on the electrode increased with time. Meanwhile, the direct contact of bacteria and electrode via outer-membrane protein can be confirmed via a series spectra shift at amide I and amide II modes and water movement from negative bands displacing by adsorbed bacteria. Our study provided supplementary information about the interaction between the microbes and electrode beyond traditional electrochemistry. |
Patrocinadors: | This work was supported by project from the National Natural Science Foundation of China (No. 21375107) and University of Alicante through Project CTQ2013-44083-P. |
URI: | http://hdl.handle.net/10045/53174 |
ISSN: | 0925-4005 (Print) | 1873-3077 (Online) |
DOI: | 10.1016/j.snb.2014.12.047 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2014 Elsevier B.V. |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.1016/j.snb.2014.12.047 |
Apareix a la col·lecció: | INV - EQSUP - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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2015_Liu_etal_SAB-C_final.pdf | Versión final (acceso restringido) | 1,84 MB | Adobe PDF | Obrir Sol·licitar una còpia |
2015_Liu_etal_SAB-C_preprint.pdf | Preprint (acceso abierto) | 990,36 kB | Adobe PDF | Obrir Vista prèvia |
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