<div class="csl-bib-body">
<div class="csl-entry">Romanovskaia, E., Slovenský, P., Kalantarian, S. M., Laundry-Mottiar, L., Romanovski, V., Halama, M., Auinger, M., & Hedberg, Y. S. (2022). Electrochemical Estimations of the Gold Nanoparticle Size Effect on Cysteine-Gold Oxidation. <i>Journal of The Electrochemical Society</i>, <i>169</i>(2), 021501. https://doi.org/10.1149/1945-7111/ac4bf8</div>
</div>
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dc.identifier.issn
0013-4651
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/136678
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dc.description.abstract
Gold nanoparticles are interesting for nanobiomedical applications, such as for drug delivery and as diagnostic imaging contrast
agents. However, their stability and reactivity in-vivo are influenced by their surface properties and size. Here, we investigate the
electrochemical oxidation of differently sized citrate-coated gold nanoparticles in the presence and absence of L-cysteine, a thiol-
containing amino acid with high binding affinity to gold. We found that smaller sized (5, 10 nm) gold nanoparticles were
significantly more susceptible to electrochemical L-cysteine interactions and/or L-cysteine-facilitated gold oxidation than larger
(20, 50 nm) sized gold nanoparticles, both for the same mass and nominal surface area, under the conditions investigated (pH 7.4,
room temperature, stagnant solutions, and scan rates of 0.5 to 450 mV s −1 ). The electrochemical measurements of drop-casted gold
nanoparticle suspensions on paraffin-impregnated graphite electrodes were susceptible to the quality of the electrode. Increased
cycling resulted in irreversible oxidation and detachment/oxidation of gold into solution. Our results suggest that L-cysteine-gold
interactions are stronger for smaller nanoparticles.
en
dc.language.iso
en
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dc.publisher
ELECTROCHEMICAL SOC INC
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dc.relation.ispartof
Journal of The Electrochemical Society
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dc.subject
Condensed Matter Physics
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dc.subject
Electronic, Optical and Magnetic Materials
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dc.subject
Renewable Energy, Sustainability and the Environment
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dc.subject
Surfaces, Coatings and Films
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dc.subject
Materials Chemistry
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dc.subject
Electrochemistry
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dc.title
Electrochemical Estimations of the Gold Nanoparticle Size Effect on Cysteine-Gold Oxidation
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
021501
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dc.type.category
Original Research Article
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tuw.container.volume
169
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tuw.container.issue
2
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
wb.publication.intCoWork
International Co-publication
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tuw.researchTopic.id
M6
-
tuw.researchTopic.id
M3
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.name
Biological and Bioactive Materials
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tuw.researchTopic.name
Metallic Materials
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
20
-
tuw.researchTopic.value
30
-
tuw.researchTopic.value
50
-
dcterms.isPartOf.title
Journal of The Electrochemical Society
-
tuw.publication.orgunit
E164-03-3 - Forschungsgruppe Pulvermetallurgie
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tuw.publisher.doi
10.1149/1945-7111/ac4bf8
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dc.identifier.eissn
1945-7111
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dc.description.numberOfPages
9
-
tuw.author.orcid
0000-0003-2145-3650
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wb.sci
true
-
wb.sciencebranch
Chemie
-
wb.sciencebranch
Nanotechnologie
-
wb.sciencebranch.oefos
1040
-
wb.sciencebranch.oefos
2100
-
wb.facultyfocus
Chemistry and Technology of Materials
de
wb.facultyfocus
Chemistry and Technology of Materials
en
wb.facultyfocus.faculty
E150
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item.openairecristype
http://purl.org/coar/resource_type/c_2df8fbb1
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item.grantfulltext
restricted
-
item.languageiso639-1
en
-
item.openairetype
research article
-
item.fulltext
no Fulltext
-
item.cerifentitytype
Publications
-
crisitem.author.dept
E164 - Institut für Chemische Technologien und Analytik