Issue 119, 2015

Differently ordered carbonaceous structures synthesized by bubbled Ar or He plasmas inside methylene blue solutions with contrasting Escherichia coli growth inhibition effects

Abstract

This work is a comparative study on the synthesis of carbonaceous structures with different ordering, aided by an atmospheric pressure plasma in contact with methylene blue aqueous solutions, by utilizing two different inert plasma gases, argon and helium respectively. The study follows the diagnosis of the two plasmas by optical emission spectroscopy, their different degradation effects on methylene blue solutions and the characterization of the carbonaceous structures obtained as a result of plasma treatment with transmission electron microscopy, Raman and X-ray photoelectron spectroscopy. The carbon based structures obtained with the helium plasma have a higher degree of ordering and are larger in size compared to the Ar plasma ones. The bacterial growth inhibition assays show opposite behaviours: one structure inhibits the growth while the other favours it.

Graphical abstract: Differently ordered carbonaceous structures synthesized by bubbled Ar or He plasmas inside methylene blue solutions with contrasting Escherichia coli growth inhibition effects

Supplementary files

Article information

Article type
Paper
Submitted
01 Sep 2015
Accepted
02 Nov 2015
First published
04 Nov 2015

RSC Adv., 2015,5, 98325-98334

Author version available

Differently ordered carbonaceous structures synthesized by bubbled Ar or He plasmas inside methylene blue solutions with contrasting Escherichia coli growth inhibition effects

D. Zaharie-Butucel, J. Papp, C. Leordean and S. D. Anghel, RSC Adv., 2015, 5, 98325 DOI: 10.1039/C5RA17779K

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