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https://hdl.handle.net/2440/118250
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dc.contributor.author | Gibson, C.T. | - |
dc.contributor.author | Ridings, C.R. | - |
dc.contributor.author | Blok, A.J. | - |
dc.contributor.author | Shearer, C.J. | - |
dc.contributor.author | Andersson, G.G. | - |
dc.contributor.author | Ellis, A.V. | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Surface Topography: Metrology and Properties, 2019; 7(1):015016-1-015016-10 | - |
dc.identifier.issn | 2051-672X | - |
dc.identifier.issn | 2051-672X | - |
dc.identifier.uri | http://hdl.handle.net/2440/118250 | - |
dc.description.abstract | Polydopamine (PDA), produced from the self-polymerization of dopamine under alkaline conditions, is well known for its natural adhesive properties on a broad variety of surfaces. However, there is still ongoing controversy as to its growth, coverage and morphology characteristics. Here, we investigate the growth of PDA on a silicon substrate over various time periods (0–24 h) using a gentle rocking method. The samples were then post-heated at 150 °C under vacuum. Both the as-prepared and post-treated samples were examined with a combination of x-ray photoelectron, UV photoelectron, and neutral impact collision ion scattering spectroscopies, as well as atomic force microscopy. Results indicated that the PDA layer growth plateaus after 5 h, proceeding via island-growth, with incomplete coverage after 24 h. Heating PDA substrates resulted in sintering of the PDA islands to form a more homogenous surface coverage, indicating this is critical for the formation of smooth and homogenous coatings. | - |
dc.description.statementofresponsibility | Christopher T Gibson, Christiaan R Ridings, Andrew J Blok, Cameron J Shearer, Gunther G Andersson and Amanda V Ellis | - |
dc.language.iso | en | - |
dc.publisher | IOP Publishing | - |
dc.rights | © 2019 IOP Publishing Ltd. | - |
dc.source.uri | http://dx.doi.org/10.1088/2051-672x/ab06eb | - |
dc.subject | Neutral impact collision ion scattering spectroscopy; atomic force microscopy; UV photoelectron spectroscopy; x-ray photoelectron spectroscop; polydopamine | - |
dc.title | Morphological changes of sintered polydopamine coatings | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1088/2051-672X/ab06eb | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FT130100211 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Shearer, C.J. [0000-0002-8192-3696] | - |
Appears in Collections: | Aurora harvest 8 Mechanical Engineering publications |
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