Multi metal assessment on biofilm formation in offshore environment

Muthukumar, Kaliappan; Dahms‬, Hans-Uwe; Palanichamy, S.; Subramanian, G.; Vignesh, S.; Kim, Jin-Hyoung; Rathinam, Arthur James

doi:10.1016/j.msec.2016.12.062

Cited by 21 publications

(5 citation statements)

References 38 publications

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“…More aquatic or marine bacteria, such as: Pseudomonas aeruginosa , Bacillus subtilis and Flavobacterium spp. [ 44 ] should be tested in the future. This would better explore antibiofilm surface in antifouling application in marine environment.…”

Section: Discussionmentioning

confidence: 99%

Investigation of the antibiofilm capacity of peptide-modified stainless steel

Cao

Morris

et al. 2018

R. Soc. open sci.

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Biofilm formation on surfaces is an important research topic in ship tribology and medical implants. In this study, dopamine and two types of synthetic peptides were designed and attached to 304 stainless steel surfaces, aiming to inhibit the formation of biofilms. A combinatory surface modification procedure was applied in which dopamine was used as a coupling agent, allowing a strong binding ability with the two peptides. X-ray photoelectron spectroscopy (XPS), elemental analysis, contact angle measurement and surface roughness test were used to evaluate the efficiency of the peptide modification. An antibiofilm assay against Staphylococcus aureus was conducted to validate the antibiofilm capacity of the peptide-modified stainless steel samples. XPS analysis confirmed that the optimal dopamine concentration was 40 µg ml−1 in the coupling reaction. Element analysis showed that dopamine and the peptides had bound to the steel surfaces. The robustness assay of the modified surface demonstrated that most peptide molecules had bound on the surface of the stainless steel firmly. The contact angle of the modified surfaces was significantly changed. Modified steel samples exhibited improved antibiofilm properties in comparison to untreated and dopamine-only counterpart, with the peptide 1 modification displaying the best antibiofilm effect. The modified surfaces showed antibacterial capacity. The antibiofilm capacity of the modified surfaces was also surface topography sensitive. The steel sample surfaces polished with 600# sandpaper exhibited stronger antibiofilm capacity than those polished with other types of sandpapers after peptide modification. These findings present valuable information for future antifouling material research.

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Section: Discussionmentioning

confidence: 99%

Investigation of the antibiofilm capacity of peptide-modified stainless steel

Cao

Morris

et al. 2018

R. Soc. open sci.

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“…The primer set used for sequencing consisted of 518r (5′-TTA GTA CGG CTG CCG CTG-3′) and 338f (5′-CCT ACT ACG GGA AGC GGC-3′) with an ABI 3130X-Genetic analyzer (Yaazh Xenomics, Bagalur, India) sequencing process was performed. 31–33 …”

Section: Methodsmentioning

confidence: 99%

“…The primer set used for sequencing consisted of 518r (5 0 -TTA GTA CGG CTG CCG CTG-3 0 ) and 338f (5 0 -CCT ACT ACG GGA AGC GGC-3 0 ) with an ABI 3130X-Genetic analyzer (Yaazh Xenomics, Bagalur, India) sequencing process was performed. [31][32][33] Finally, PCR obtained product sequences were compared to known 16S rRNA sequences using the CLUSTAL W program. Furthermore, the sequences were compared by the Basic Local Alignment Searching Tool (BLAST) with phylogenetically related taxa.…”

Section: S Ribosomal Dna (16s Rdna) Extraction Of Drs Isolatesmentioning

confidence: 99%

Photocatalytic dye degradation and photoexcited anti-microbial activities of green zinc oxide nanoparticles synthesizedvia Sargassum muticumextracts

2022

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“…The obtained sequences were compared with other sequences of phylogenetically related taxa using the Basic Local Alignment Searching Tool (BLAST). Phylogenetic relationships were inferred by the neighbour-joining (NJ) method in the BLAST and sequences of the MBB were submitted to the National Center for Biotechnology Information (NCBI - Washington D.C., U.S.A.) and retrieved with an accession number 44 .…”

Section: Methodsmentioning

confidence: 99%

Biogenic corrosion inhibitor on mild steel protection in concentrated HCl medium

Muthukumar

Harinee

Dahms‬

et al. 2018

Sci Rep

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Turbinaria ornata (TO) extract was tested as green corrosion inhibitor on mild steel (MS) coupons in conc. HCl medium with an efficiency of 100% at 25 g l −1 during 5 min exposure. Antibacterial efficacy performed against 16 S rDNA identified marine biofilming bacteria (MBB) and human pathogenic bacteria (HPB). Maximum inhibition growth was 16 mm on MBB observed in Bacillus megaterium (MBF14 -AB894827) and 20 mm on HPB in Escherichia coli (B5 -NCIM 2931). Similarly, minimum of 10 mm on MBB witnessed in Pseudomonas sp., (MBF9 -AB894829). Toxicity studies proved 50.0% LC 50 at 500 μg ml −1 in 24 hrs, whereas Balanus amphitrite resulted in 100% mortality within 12 hrs. Results including weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy, FT-IR and GC-MS confirm 10-Octadecaonic acid as a major corrosion inhibitor from T. ornata and is discovered as a novel antifoulant. Anticorrosion formulation will become available soon.

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Multi metal assessment on biofilm formation in offshore environment

Cited by 21 publications

References 38 publications

Investigation of the antibiofilm capacity of peptide-modified stainless steel

Investigation of the antibiofilm capacity of peptide-modified stainless steel

Photocatalytic dye degradation and photoexcited anti-microbial activities of green zinc oxide nanoparticles synthesizedvia Sargassum muticumextracts

Biogenic corrosion inhibitor on mild steel protection in concentrated HCl medium

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