Influence of non-thermal plasma treated Nano-carbon on TiO2 coated PMMA for bio activation of medical devices
Abstract
The Titanium di Oxide (TiO2) was successfully coated over transparent Polymethylmethacrylate (PMMA) sheets by spin coating method which was then subjected to Acetylene Plasma processing to form a thin- Nano carbon layer on the TiO2 coated PMMA. The amorphous carbon was uniquely coated by novel vacuum plasma based immersion technique on TiO2 coated PMMA with the base pressure of 5x10-5 m.bar. The Acetylene gas was used as Plasma gas which was the ultimate source of carbon. The afore said incorporation technique helps PMMA to attain more mechanical strength, improved surface and mainly good bioactive property with high antibacterial activity with the continuous carboxylic group of polymer network. This plasma processed TiO2 coated PMMA was subjected to various characterization techniques such as Raman spectroscopy, FTIR and XRD analysis. The carboxylic stretching mode and C=O bending modes were evident by Raman spectroscopy studies were as the symmetric and asymmetric carboxyl groups were observed by FTIR spectroscopy. Three humps were observed as an amorphous Nano carbon at 10 and 45 2θ values using XRD measurements. This study confirmed the formation of thin- Nano carbon layer on the TiO2 coated PMMA which may be used for medical device applications such as for bio-implant purposes after a detailed investigation.
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Copyright (c) 2025 Balachander N, Yuvaraj S, Pavithrakumar P, Yoganand C.P
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