Preliminary study on biocorrosion inhibition effect of Ti-5Cu alloy against marine bacterium Pseudomonas aeruginosa

Mohammed Arroussi; Chunguang Bai; Jinlong Zhao; Shuyuan Zhang; Zhizhou Xia; Qing Jia; Ke Yang

doi:10.1016/j.apsusc.2021.151981

Preliminary study on biocorrosion inhibition effect of Ti-5Cu alloy against marine bacterium Pseudomonas aeruginosa

Mohammed Arroussi
, Chunguang Bai
, Jinlong Zhao
, Shuyuan Zhang
, Zhizhou Xia
, Qing Jia^*
, Ke Yang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Titanium is not fully immune to the microbiologically-influenced corrosion, yet highly susceptible to biofouling. Biocorrosion inhibition effect of Ti-5Cu alloy against Pseudomonas aeruginosa was studied using antibacterial test, various electrochemical techniques and surface analysis. Ti-5Cu alloy was verified to effectively reduce the MIC rate. After 14 days of incubation in P. aeruginosa, the i_corr of cp-Ti (89.20 ± 12nA cm⁻²) was significantly greater than that of Ti-5Cu alloy (35.42 ± 5.3nA cm⁻²). Release of Cu²⁺ ions which was confirmed by shake-up feature controlled respiration of P. aeruginosa, resulting in strong pitting resistance ability. The outermost layer of Ti-5Cu alloy was predominantly composed of TiO₂, but a spot of Ti° was also detected. In contrast, the content of Ti₂O₃ at sputtering thickness of 0, 2, and 6 nm was higher on the surface of cp-Ti compared with Ti-5Cu alloy. Ti₂Cu intermetallic compounds promoted the rapid self-healing property of passive film in the presence of P. aeruginosa.

Original language	English
Article number	151981
Journal	Applied Surface Science
Volume	578
DOIs	https://doi.org/10.1016/j.apsusc.2021.151981
State	Published - 15 Mar 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021

Keywords

Biocorrosion inhibition
P. aeruginosa
Passive film
Titanium alloy

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/j.apsusc.2021.151981

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title = "Preliminary study on biocorrosion inhibition effect of Ti-5Cu alloy against marine bacterium Pseudomonas aeruginosa",

abstract = "Titanium is not fully immune to the microbiologically-influenced corrosion, yet highly susceptible to biofouling. Biocorrosion inhibition effect of Ti-5Cu alloy against Pseudomonas aeruginosa was studied using antibacterial test, various electrochemical techniques and surface analysis. Ti-5Cu alloy was verified to effectively reduce the MIC rate. After 14 days of incubation in P. aeruginosa, the icorr of cp-Ti (89.20 ± 12nA cm−2) was significantly greater than that of Ti-5Cu alloy (35.42 ± 5.3nA cm−2). Release of Cu2+ ions which was confirmed by shake-up feature controlled respiration of P. aeruginosa, resulting in strong pitting resistance ability. The outermost layer of Ti-5Cu alloy was predominantly composed of TiO2, but a spot of Ti° was also detected. In contrast, the content of Ti2O3 at sputtering thickness of 0, 2, and 6 nm was higher on the surface of cp-Ti compared with Ti-5Cu alloy. Ti2Cu intermetallic compounds promoted the rapid self-healing property of passive film in the presence of P. aeruginosa.",

keywords = "Biocorrosion inhibition, P. aeruginosa, Passive film, Titanium alloy",

author = "Mohammed Arroussi and Chunguang Bai and Jinlong Zhao and Shuyuan Zhang and Zhizhou Xia and Qing Jia and Ke Yang",

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day = "15",

doi = "10.1016/j.apsusc.2021.151981",

language = "English",

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AU - Arroussi, Mohammed

AU - Bai, Chunguang

AU - Zhao, Jinlong

AU - Zhang, Shuyuan

AU - Xia, Zhizhou

AU - Jia, Qing

AU - Yang, Ke

PY - 2022/3/15

Y1 - 2022/3/15

N2 - Titanium is not fully immune to the microbiologically-influenced corrosion, yet highly susceptible to biofouling. Biocorrosion inhibition effect of Ti-5Cu alloy against Pseudomonas aeruginosa was studied using antibacterial test, various electrochemical techniques and surface analysis. Ti-5Cu alloy was verified to effectively reduce the MIC rate. After 14 days of incubation in P. aeruginosa, the icorr of cp-Ti (89.20 ± 12nA cm−2) was significantly greater than that of Ti-5Cu alloy (35.42 ± 5.3nA cm−2). Release of Cu2+ ions which was confirmed by shake-up feature controlled respiration of P. aeruginosa, resulting in strong pitting resistance ability. The outermost layer of Ti-5Cu alloy was predominantly composed of TiO2, but a spot of Ti° was also detected. In contrast, the content of Ti2O3 at sputtering thickness of 0, 2, and 6 nm was higher on the surface of cp-Ti compared with Ti-5Cu alloy. Ti2Cu intermetallic compounds promoted the rapid self-healing property of passive film in the presence of P. aeruginosa.

AB - Titanium is not fully immune to the microbiologically-influenced corrosion, yet highly susceptible to biofouling. Biocorrosion inhibition effect of Ti-5Cu alloy against Pseudomonas aeruginosa was studied using antibacterial test, various electrochemical techniques and surface analysis. Ti-5Cu alloy was verified to effectively reduce the MIC rate. After 14 days of incubation in P. aeruginosa, the icorr of cp-Ti (89.20 ± 12nA cm−2) was significantly greater than that of Ti-5Cu alloy (35.42 ± 5.3nA cm−2). Release of Cu2+ ions which was confirmed by shake-up feature controlled respiration of P. aeruginosa, resulting in strong pitting resistance ability. The outermost layer of Ti-5Cu alloy was predominantly composed of TiO2, but a spot of Ti° was also detected. In contrast, the content of Ti2O3 at sputtering thickness of 0, 2, and 6 nm was higher on the surface of cp-Ti compared with Ti-5Cu alloy. Ti2Cu intermetallic compounds promoted the rapid self-healing property of passive film in the presence of P. aeruginosa.

KW - Biocorrosion inhibition

KW - P. aeruginosa

KW - Passive film

KW - Titanium alloy

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DO - 10.1016/j.apsusc.2021.151981

M3 - Article

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SN - 0169-4332

VL - 578

JO - Applied Surface Science

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M1 - 151981

ER -

Preliminary study on biocorrosion inhibition effect of Ti-5Cu alloy against marine bacterium Pseudomonas aeruginosa

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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