XPS Examination of the Chemical Composition of PEGMUA‐Coated Gold Nanoparticles
Abstract: A surface chemical analysis of 12 nm diameter gold nanoparticles (AuNPs) coated with polyethylene glycol (PEG)‐11‐mercaptoundecanoic acid (MUA) is performed by means of X‐ray photoelectron spectroscopy (XPS). For this purpose, the PEGMUA‐coated AuNPs are deposited using two different deposition techniques, drop‐casting or spin‐coating, on a thin‐film carbon substrate. The measurements show that AuNPs are present in the +I oxidation state due to the synthesis process of the coated AuNPs, and in the Au (0) oxidation state. Carbon and oxygen contaminations are detected on both the coating surface and carbon substrate. While sputtering of the sample with argon enables the removal of carbon and oxygen contaminations, it also removes part of the coating on the sample surface. The two deposition methods, however, do not cause any chemical structural changes to the nanoparticles.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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XPS Examination of the Chemical Composition of PEGMUA‐Coated Gold Nanoparticles ; day:11 ; month:07 ; year:2022 ; extent:10
Particle & particle systems characterization ; (11.07.2022) (gesamt 10)
- Creator
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Hepperle, Philine
Herman, Alexander
Khanbabaee, Behnam
Baek, Woon Yong
Nettelbeck, Heidi
Rabus, Hans
- DOI
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10.1002/ppsc.202200070
- URN
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urn:nbn:de:101:1-2022071215162338985383
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:31 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Hepperle, Philine
- Herman, Alexander
- Khanbabaee, Behnam
- Baek, Woon Yong
- Nettelbeck, Heidi
- Rabus, Hans
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