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dc.contributor.author
Trifonov, Alexander
dc.contributor.author
Stemmer, Andreas
dc.contributor.author
Tel-Vered, Ran
dc.date.accessioned
2021-02-24T13:03:06Z
dc.date.available
2020-09-10T05:50:54Z
dc.date.available
2020-09-10T07:37:58Z
dc.date.available
2021-02-24T13:01:07Z
dc.date.available
2021-02-24T13:03:06Z
dc.date.issued
2021-02
dc.identifier.other
10.1016/j.bioelechem.2020.107640
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/439507
dc.identifier.doi
10.3929/ethz-b-000439507
dc.description.abstract
One of the factors hindering the development of enzymatic biosensors and biofuel cells in real-life applications is the time-dependant degradation of the biocatalysts on electrode surfaces. In this work, we present a new practical approach for extending the operation lifetimes of bioelectrocatalytic assemblies based on bilirubin oxidase (BOD). As evident by both spectroscopic and electrochemical measurements, an adsorption of carbon-coated magnetic nanoparticles (ccMNPs) onto a BOD/carbon nanotubes-deposited surface yields a stable bioelectrocathode system for mediatorless oxygen reduction. As compared to electrodes, which were stored without a preliminary interaction with the ccMNPs, an 80% increase in the active enzymatic content and the electrocatalytic performance was evident for the modified assemblies over a course of one month. As the full removal of the protective particles before the measurement requires only a single step applying an external magnetic force, the method is shown to be simple, reproducible, and easy to implement. Combined with the high efficiency in preserving the enzymatic stability and bioelectrocatalytic currents, the findings suggest a promising methodology for enhancing the lifetimes of bioelectronic applications.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Direct electron transfer
en_US
dc.subject
Bilirubin oxidase
en_US
dc.subject
Magnetic nanoparticles
en_US
dc.subject
Extended operation
en_US
dc.subject
Bioelectrocatalytic currents
en_US
dc.title
Carbon-coated magnetic nanoparticles as a removable protection layer extending the operation lifetime of bilirubin oxidase-based bioelectrode
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-08-24
ethz.journal.title
Bioelectrochemistry
ethz.journal.volume
137
en_US
ethz.pages.start
107640
en_US
ethz.size
6 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::03444 - Stemmer, Andreas / Stemmer, Andreas
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::03444 - Stemmer, Andreas / Stemmer, Andreas
ethz.date.deposited
2020-09-10T05:51:15Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-09-10T07:38:09Z
ethz.rosetta.lastUpdated
2021-02-15T17:07:20Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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