Journal article

Morphological changes of sintered polydopamine coatings

Christopher T Gibson, Christiaan R Ridings, Andrew J Blok, Cameron J Shearer, Gunther G Andersson, Amanda V Ellis

Surface Topography: Metrology and Properties | IOP Publishing | Published : 2019

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 indicat..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

The authors would like to thank the Australian Research council for ARC Future Fellowship funding (FT130100211). The authors acknowledge the facilities, and the scientific and technical assistance, of Microscopy Australia (formerly known as AMMRF) and the Australian National Fabrication Facility (ANFF) at Flinders University.: FT130100211/Australian Research council