Electron transfer mediator PCN secreted by aerobic marine Pseudomonas aeruginosa accelerates microbiologically influenced corrosion of TC4 titanium alloy

2021 ◽  
Vol 79 ◽  
pp. 101-108
Author(s):  
Dan Liu ◽  
Hongying Yang ◽  
Jianhui Li ◽  
Jiaqi Li ◽  
Yizhe Dong ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Electron Transfer ◽  
Titanium Alloy ◽  
Microbiologically Influenced Corrosion ◽  
Electron Transfer Mediator ◽  
Tc4 Titanium Alloy

Research on the water cavitation peening process and mechanism of TC4 titanium alloy

2021 ◽  
Author(s):  
Peiyu He ◽  
Fuzhu Li ◽  
Jun Guo ◽  
Shangshuang Chen ◽  
Yuqin Guo ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Tc4 Titanium Alloy

scholarly journals Experimental and simulation requirements for residual stress of TC4 titanium alloy based on ultrasonic rolling

2021 ◽  
Vol 1063 (1) ◽  
pp. 012001
Author(s):  
Yanjie Liu ◽  
Xiuli Fu ◽  
Hongxia Li ◽  
Pengcheng Wang ◽  
Xiuhua Men
Keyword(s):  
Residual Stress ◽  
Titanium Alloy ◽  
Tc4 Titanium Alloy

Microstructure evolution of TC4 titanium alloy/316L stainless steel dissimilar joint vacuum-brazed with Ti-Zr-Cu amorphous filler metal

2019 ◽  
Vol 63 (2) ◽  
pp. 323-336 ◽  
Author(s):  
Yueqing Xia ◽  
Honggang Dong ◽  
Xiaohu Hao ◽  
Shuai Li ◽  
Peng Li ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Titanium Alloy ◽  
Microstructure Evolution ◽  
316L Stainless Steel ◽  
Filler Metal ◽  
Dissimilar Joint ◽  
Tc4 Titanium Alloy

scholarly journals Strain- and Substrate-Dependent Redox Mediator and Electricity Production by Pseudomonas aeruginosa

2016 ◽  
Vol 82 (16) ◽  
pp. 5026-5038 ◽  
Author(s):  
Erick M. Bosire ◽  
Lars M. Blank ◽  
Miriam A. Rosenbaum
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Electron Transfer ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Pure Culture ◽  
Bioelectrochemical Systems ◽  
Content Type ◽  
Mediated Electron Transfer ◽  
Phenazine Production ◽  
Model Strain

ABSTRACTPseudomonas aeruginosais an important, thriving member of microbial communities of microbial bioelectrochemical systems (BES) through the production of versatile phenazine redox mediators. Pure culture experiments with a model strain revealed synergistic interactions ofP. aeruginosawith fermenting microorganisms whereby the synergism was mediated through the shared fermentation product 2,3-butanediol. Our work here shows that the behavior and efficiency ofP. aeruginosain mediated current production is strongly dependent on the strain ofP. aeruginosa. We compared levels of phenazine production by the previously investigated model strainP. aeruginosaPA14, the alternative model strainP. aeruginosaPAO1, and the BES isolatePseudomonassp. strain KRP1 with glucose and the fermentation products 2,3-butanediol and ethanol as carbon substrates. We found significant differences in substrate-dependent phenazine production and resulting anodic current generation for the three strains, with the BES isolate KRP1 being overall the best current producer and showing the highest electrochemical activity with glucose as a substrate (19 μA cm−2with ∼150 μg ml−1phenazine carboxylic acid as a redox mediator). Surprisingly,P. aeruginosaPAO1 showed very low phenazine production and electrochemical activity under all tested conditions.IMPORTANCEMicrobial fuel cells and other microbial bioelectrochemical systems hold great promise for environmental technologies such as wastewater treatment and bioremediation. While there is much emphasis on the development of materials and devices to realize such systems, the investigation and a deeper understanding of the underlying microbiology and ecology are lagging behind. Physiological investigations focus on microorganisms exhibiting direct electron transfer in pure culture systems. Meanwhile, mediated electron transfer with natural redox compounds produced by, for example,Pseudomonas aeruginosamight enable an entire microbial community to access a solid electrode as an alternative electron acceptor. To better understand the ecological relationships between mediator producers and mediator utilizers, we here present a comparison of the phenazine-dependent electroactivities of threePseudomonasstrains. This work forms the foundation for more complex coculture investigations of mediated electron transfer in microbial fuel cells.

scholarly journals Microstructure and Properties of Low Cost TC4 Titanium Alloy Plate

2016 ◽  
Vol 67 ◽  
pp. 05025
Author(s):  
Qiuyuan Feng ◽  
Lei Zhang ◽  
Hong Pang ◽  
PingHui Zhang ◽  
Xuewen Tong ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Low Cost ◽  
Alloy Plate ◽  
Microstructure And Properties ◽  
Tc4 Titanium Alloy ◽  
Titanium Alloy Plate

Biosensor Based on TTF@ SiO2 Nanoparticles as Electron Transfer Mediator for the Determination of Glucose1

2006 ◽  
Vol 22 (4) ◽  
pp. 474-478 ◽  
Author(s):  
X LI ◽  
Y XIAN ◽  
H MIN ◽  
C LI ◽  
Z XIE ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Sio2 Nanoparticles ◽  
Electron Transfer Mediator
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