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Development of a universal conductive platform for anchoring photo- and electroactive proteins using organometallic terpyridine molecular wires

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cris.lastimport.scopus2024-02-12T20:35:23Z
dc.abstract.enThe construction of an efficient conductive interface between electrodes and electroactive proteins is a major challenge in the biosensor and bioelectrochemisty fields to achieve the desired nanodevice performance. Concomitantly, metallo-organic terpyridine wires have been extensively studied for their great ability to mediate electron transfer over a long-range distance. In this study, we report a novel stepwise bottom-up approach for assembling bioelectrodes based on genetically modified model electroactive protein, cytochrome c553 (cyt c553) and organometallic terpyridine (TPY) molecular wire self-assembled monolayer (SAM). Efficient anchoring the TPY derivative (TPY-PO(OH)2) onto the ITO surface was achieved by optimizing solvent composition. Uniform surface coverage with the electroactive protein was achieved by binding the cyt c553 molecules via the C-terminal His6-tag to the modified TPY macromolecules containing earth abundant metallic redox centres. The (photo)electrochemical characterisation demonstrates the crucial importance of the metal redox centre for determination of the desired electron transfer properties between cyt and ITO electrode. Even without the cyt protein, the ITO-TPY nanosystem reported here generates photocurrents whose densities are 2-fold higher that those reported earlier for ITO electrodes functionalised with the photoactive proteins such as photosystem I in the presence of an external mediator, and 30-fold higher than the pristine ITO. The universal chemical platform for anchoring and nanostructuring of (photo)electroactive proteins reported in this study provides a major advancement for construction of efficient (bio)molecular systems requiring a high degree of precise supramolecular organisation as well as efficient charge transfer between (photo)redox-active molecular components and various types of electrode materials.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorGorzkowski, Maciej T.
dc.contributor.authorTeodorczyk, Marian
dc.contributor.authorLewera, Adam
dc.contributor.authorKozdra, Sylwia
dc.contributor.authorMichałowski, Paweł Piotr
dc.contributor.authorGryko, Daniel
dc.contributor.authorJurczakowski, Rafal
dc.contributor.authorOsella, Silvio
dc.contributor.authorJacquet, Margot
dc.contributor.authorIzzo, Miriam
dc.contributor.authorGołowicz, Dariusz
dc.contributor.authorKazimierczuk, Krzysztof
dc.contributor.authorTrzaskowski, Bartosz
dc.contributor.authorKargul, Joanna
dc.date.accessioned2024-01-24T21:47:39Z
dc.date.available2024-01-24T21:47:39Z
dc.date.copyright2021-05-07
dc.date.issued2021
dc.description.accesstimeAT_PUBLICATION
dc.description.financeŚrodki finansowe, o których mowa w art. 365 pkt. 2 ustawy
dc.description.number21
dc.description.versionFINAL_PUBLISHED
dc.description.volume13
dc.identifier.doi10.1039/D0NR08870F
dc.identifier.issn2040-3364
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/104743
dc.identifier.weblinkhttp://pubs.rsc.org/en/content/articlepdf/2021/NR/D0NR08870F
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofNanoscale
dc.relation.pages9773-9787
dc.rightsCC-BY-NC
dc.sciencecloudnosend
dc.titleDevelopment of a universal conductive platform for anchoring photo- and electroactive proteins using organometallic terpyridine molecular wires
dc.typeJournalArticle
dspace.entity.typePublication