Neutral Red Film Augments Extracellular Electron Transfer Performed by Clostridium pasteurianum DSM 525

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorZani, Ana Clara Bonizol-
Autor(es): dc.creatorde Souza, João Carlos-
Autor(es): dc.creatorde Andrade, Adalgisa Rodrigues-
Autor(es): dc.creatorReginatto, Valeria-
Data de aceite: dc.date.accessioned2025-08-21T23:22:21Z-
Data de disponibilização: dc.date.available2025-08-21T23:22:21Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/fermentation10100497-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298833-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298833-
Descrição: dc.descriptionExtracellular electron transfer (EET) is key to the success of microbial fuel cells (MFCs). Clostridium sp. often occurs in MFC anode communities, but its ability to perform EET remains controversial. We have employed Clostridium pasteurianum DSM 525 as a biocatalyst in a glycerol-fed MFC, designated MFCDSM. We have also followed the EET of this biocatalyst in the presence of a mediator, namely soluble neutral red (NR), soluble methyl viologen (MV), neutral red film (FNR), or methyl viologen film (FMV). MFCDSM provided power and current densities (j) of 0.39 μW·cm−2 and 2.47 μA·cm−2, respectively, which evidenced that the biocatalyst performs direct electron transfer (DET). Introducing 150.0 µM NR or MV into the MFCDSM improved the current density by 7.0- and 3.7-fold (17.05 and 8.45 μA·cm−2), respectively. After 20 cyclic voltammetry (CV) cycles, the presence of FNR in the MFCDSM anodic chamber provided an almost twofold higher current density (30.76 µA·cm−2) compared to the presence of NR in the MFCDSM. Introducing MV or FMV into the MFCDSM anodic chamber gave practically the same current density after 10 CV cycles. The MFCDSM anodic electrode might interact with FMV weakly than with FNR, so FNR is more promising to enhance C. pasteurianum DSM 525 EET within MFCDSM.-
Descrição: dc.descriptionDepartment of Chemistry Faculty of Philosophy Sciences and Letters at Ribeirão Preto (FFCLRP) University of São Paulo (USP), SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry National Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), SP-
Idioma: dc.languageen-
Relação: dc.relationFermentation-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectClostridium pasteurianum DSM 525-
Palavras-chave: dc.subjectglycerol-
Palavras-chave: dc.subjectmediated electron transfer (MET)-
Palavras-chave: dc.subjectmethyl viologen (MV)-
Palavras-chave: dc.subjectneutral red (NR)-
Título: dc.titleNeutral Red Film Augments Extracellular Electron Transfer Performed by Clostridium pasteurianum DSM 525-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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