Plasma-polymerized HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites

N. Alissawi, T. Peter, T. Strunskus, C. Ebbert, G. Grundmeier, F. Faupel, JOURNAL OF NANOPARTICLE RESEARCH 15 (2013).

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Journal Article | Published | English
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Abstract
In the current work, we study the silver ion release potential and the water uptake through a SiOxCyHz-polymer which is grown from the precursor hexamethyldisiloxane (HMDSO) in radiofrequency (RF) plasma. These layers were deposited on top of two dimensional (2D) ensembles of silver nanoparticles (AgNPs) with nominal thickness of 2 nm on a 20 nm RF-sputtered polytetrafluoroethylene (PTFE) thin film. The composition of the plasma-polymerized HMDSO barriers was varied by changing the oxygen flow during the polymerization process and their thickness was varied as well. Morphology and optical properties of the nanocomposites were investigated using transmission electron microscopy (TEM) and UV-Visible spectroscopy (UV-Vis), respectively. The concentration of the silver ions released from the nanocomposites after immersion in water for several time intervals was measured using inductively coupled plasma mass spectrometry (ICP-MS). Contact angle analysis and electrochemical impedance spectroscopy (EIS) measurements were also performed and results show a strong dependence of the coatings properties and their water uptake on the oxygen content in the coating films and their thickness. Plasma polymerization with increasing the oxygen flow leads to the formation of more hydrophilic thin films with a higher Ag ion release potential. Increasing the thickness of the coatings reduced the amount of the released ions and the rate of the release process was slowed down. This indicates that by tailoring the structure and the thickness of the plasma-polymerized coating films, one can tune the silver ion release properties of Ag/polymer nanocomposites.
Publishing Year
Journal Title
JOURNAL OF NANOPARTICLE RESEARCH
Volume
15
Issue
11
Article Number
2080
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Alissawi N, Peter T, Strunskus T, Ebbert C, Grundmeier G, Faupel F. Plasma-polymerized HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites. JOURNAL OF NANOPARTICLE RESEARCH. 2013;15(11). doi:10.1007/s11051-013-2080-9
Alissawi, N., Peter, T., Strunskus, T., Ebbert, C., Grundmeier, G., & Faupel, F. (2013). Plasma-polymerized HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites. JOURNAL OF NANOPARTICLE RESEARCH, 15(11). https://doi.org/10.1007/s11051-013-2080-9
@article{Alissawi_Peter_Strunskus_Ebbert_Grundmeier_Faupel_2013, title={Plasma-polymerized HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites}, volume={15}, DOI={10.1007/s11051-013-2080-9}, number={112080}, journal={JOURNAL OF NANOPARTICLE RESEARCH}, author={Alissawi, N. and Peter, T. and Strunskus, T. and Ebbert, Christoph and Grundmeier, Guido and Faupel, F.}, year={2013} }
Alissawi, N., T. Peter, T. Strunskus, Christoph Ebbert, Guido Grundmeier, and F. Faupel. “Plasma-Polymerized HMDSO Coatings to Adjust the Silver Ion Release Properties of Ag/Polymer Nanocomposites.” JOURNAL OF NANOPARTICLE RESEARCH 15, no. 11 (2013). https://doi.org/10.1007/s11051-013-2080-9.
N. Alissawi, T. Peter, T. Strunskus, C. Ebbert, G. Grundmeier, and F. Faupel, “Plasma-polymerized HMDSO coatings to adjust the silver ion release properties of Ag/polymer nanocomposites,” JOURNAL OF NANOPARTICLE RESEARCH, vol. 15, no. 11, 2013.
Alissawi, N., et al. “Plasma-Polymerized HMDSO Coatings to Adjust the Silver Ion Release Properties of Ag/Polymer Nanocomposites.” JOURNAL OF NANOPARTICLE RESEARCH, vol. 15, no. 11, 2080, 2013, doi:10.1007/s11051-013-2080-9.

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