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Multifunctional inhibitor mixture for reducing bacteria growth and corrosion on marine grade steel

Catubig, Rainer, Michalczyk, Agnieszka, Neil, Wayne, McAdam, Grant, Forsyth, John, Mousaabadi Ghorbani, Mahdi, Yunis, Ruhamah, Ackland, Margaret, Forsyth, Maria and Somers, Anthony 2021, Multifunctional inhibitor mixture for reducing bacteria growth and corrosion on marine grade steel, ChemRxiv, doi: 10.26434/chemrxiv.13719649.v1.

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Title Multifunctional inhibitor mixture for reducing bacteria growth and corrosion on marine grade steel
Author(s) Catubig, Rainer
Michalczyk, AgnieszkaORCID iD for Michalczyk, Agnieszka orcid.org/0000-0001-5716-0783
Neil, Wayne
McAdam, Grant
Forsyth, John
Mousaabadi Ghorbani, Mahdi
Yunis, RuhamahORCID iD for Yunis, Ruhamah orcid.org/0000-0002-2549-2086
Ackland, MargaretORCID iD for Ackland, Margaret orcid.org/0000-0002-7474-6556
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Somers, AnthonyORCID iD for Somers, Anthony orcid.org/0000-0002-0220-2904
Journal name ChemRxiv
Total pages 29
Publisher American Chemical Society (ACS)
Place of publication Washington, D.C.
Publication date 2021-02-06
Keyword(s) steel
corrosion
seawater
anti-microbial
inhibitor
rare-earth
profilometry
antimicrobial chemicals
microbiologically influenced corrosion (MIC)
corrosion inhibitor
potentiodynamic polarization measurement
Summary High strength steel in marine environments suffers from severe corrosion susceptibility and the presence of bacteria can exacerbate the effect, accelerating degradation via microbiologically influenced corrosion (MIC). Here we propose a novel approach to MIC inhibition by designing a system capable of limiting the effects of both bacteria growth and corrosion. The combination of a newly synthesised compound, cetrimonium 4-hydroxycinnamate, with lanthanum 4-hydroxycinnamate was the only system tested to date that could both inhibit abiotic corrosion in artificial seawater and minimise bacteria consortium densities over an exposure period of 24 hours. This success was proposed to be due to their compatibility in the testing environment.Furthermore, we confirmed from cytotoxicity testing that Cet-4OHCin demonstrated similarly limited toxicity towards human cells as the commercially available cetrimonium bromide, a known safe additive to cosmetic products. Thus, this new system shows promise as a safe and effective multifunctional inhibitor to reduce the effects of MIC.
Language eng
DOI 10.26434/chemrxiv.13719649.v1
Indigenous content off
Field of Research 091207 Metals and Alloy Materials
030604 Electrochemistry
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2021, The Authors
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30147899

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Collection
GTP Research
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.