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Cao P, He X, Xiao J, Yuan C, Bai X. Peptide-modified stainless steel with resistance capacity of Staphylococcus aureus
biofilm formation. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6531] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pan Cao
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
- College of Mechanical Engineering; Yangzhou University; Yangzhou 255127 China
| | - Xiaoyan He
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
| | - Jinfei Xiao
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
| | - Chengqing Yuan
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
| | - Xiuqin Bai
- Reliability Engineering Institute, National Engineering Research Center for Water Transport Safety; Wuhan University of Technology; Wuhan 430063 China
- Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport; Wuhan University of Technology; Wuhan 430063 China
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Dorri M, Turgeon S, Brodusch N, Cloutier M, Chevallier P, Gauvin R, Mantovani D. Characterization of Amorphous Oxide Nano-Thick Layers on 316L Stainless Steel by Electron Channeling Contrast Imaging and Electron Backscatter Diffraction. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2016; 22:997-1006. [PMID: 27681083 DOI: 10.1017/s1431927616011612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Characterization of the topmost surface of biomaterials is crucial to understanding their properties and interactions with the local environment. In this study, the oxide layer microstructure of plasma-modified 316L stainless steel (SS316L) samples was analyzed by a combination of electron backscatter diffraction and electron channeling contrast imaging using low-energy incident electrons. Both techniques allowed clear identification of a nano-thick amorphous oxide layer, on top of the polycrystalline substrate, for the plasma-modified samples. A methodology was developed using Monte Carlo simulations combined with the experimental results to estimate thickness of the amorphous layer for different surface conditions. X-ray photoelectron spectroscopy depth profiles were used to validate these estimations.
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Affiliation(s)
- Mahrokh Dorri
- 1Laboratory for Biomaterials and Bioengineering,CRC-I,Department of Mining, Metallurgical and Materials Engineering,CHU de Québec Research Center,Laval University,Pavillon Pouliot,1065 Medicine Street,Québec,QC,Canada,G1V 0A6
| | - Stéphane Turgeon
- 2CHU Research Center of Quebec,10 rue de l'Espinay,Room E0-165,Québec,QC,Canada,G1L 3L5
| | - Nicolas Brodusch
- 3Mining and Materials Department,McGill University,Wong Building,3610 University Street,Montréal,QC,Canada,H3A 0C5
| | - Maxime Cloutier
- 1Laboratory for Biomaterials and Bioengineering,CRC-I,Department of Mining, Metallurgical and Materials Engineering,CHU de Québec Research Center,Laval University,Pavillon Pouliot,1065 Medicine Street,Québec,QC,Canada,G1V 0A6
| | - Pascale Chevallier
- 2CHU Research Center of Quebec,10 rue de l'Espinay,Room E0-165,Québec,QC,Canada,G1L 3L5
| | - Raynald Gauvin
- 3Mining and Materials Department,McGill University,Wong Building,3610 University Street,Montréal,QC,Canada,H3A 0C5
| | - Diego Mantovani
- 1Laboratory for Biomaterials and Bioengineering,CRC-I,Department of Mining, Metallurgical and Materials Engineering,CHU de Québec Research Center,Laval University,Pavillon Pouliot,1065 Medicine Street,Québec,QC,Canada,G1V 0A6
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3
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Guo L, Hua G, Yang B, Lu H, Qiao L, Yan X, Li D. Electron work functions of ferrite and austenite phases in a duplex stainless steel and their adhesive forces with AFM silicon probe. Sci Rep 2016; 6:20660. [PMID: 26868719 PMCID: PMC4751616 DOI: 10.1038/srep20660] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 01/06/2016] [Indexed: 11/09/2022] Open
Abstract
Local electron work function, adhesive force, modulus and deformation of ferrite and austenite phases in a duplex stainless steel were analyzed by scanning force microscopy. It is demonstrated that the austenite has a higher electron work function than the ferrite, corresponding to higher modulus, smaller deformation and larger adhesive force. Relevant first-principles calculations were conducted to elucidate the mechanism behind. It is demonstrated that the difference in the properties between austenite and ferrite is intrinsically related to their electron work functions.
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Affiliation(s)
- Liqiu Guo
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4.,Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Guomin Hua
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4
| | - Binjie Yang
- Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Hao Lu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4
| | - Lijie Qiao
- Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Xianguo Yan
- School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, People's Republic of China
| | - Dongyang Li
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4
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Burgess C, Desvaux M, Ölmez H. 1st Conference of BacFoodNet: mitigating bacterial colonisation in the food chain: bacterial adhesion, biocide resistance and microbial safety of fresh produce. Res Microbiol 2014; 165:305-10. [DOI: 10.1016/j.resmic.2014.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 03/21/2014] [Indexed: 10/25/2022]
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5
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Evidence of extensive diversity in bacterial adherence mechanisms that exploit unanticipated stainless steel surface structural complexity for biofilm formation. Acta Biomater 2013; 9:6236-44. [PMID: 23212080 DOI: 10.1016/j.actbio.2012.11.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 11/21/2012] [Accepted: 11/26/2012] [Indexed: 11/20/2022]
Abstract
Three protease-resistant bioorganic 304 stainless steel surfaces were created through the reaction of synthetic peptides consisting of the D-enantiomeric isomer (D-K122-4), the retro-inverso D-enantiomeric isomer (RI-K122-4), and a combination of the two peptides (D+RI) of the Pseudomonas aeruginosa PilA receptor binding domain with steel surfaces. The peptides used to produce the new materials differ only in handedness of their three-dimensional structure, but they reacted with the steel to yield materials that differed in their surface electron work function (EWF) while displaying an identical chemical composition and equivalent surface adhesive force properties. These surfaces allowed for an assessment of the relative role of surface EWF in initial biofilm formation. We examined the ability of various bacteria (selected strains of Listeria monocytogenes, L. innocua, Staphylococcus aureus and S. epidermidis) to initiate biofilm formation. The D-K1224 generated surface displayed the lowest EWF (classically associated with greater molecular interactions and more extensive biofilm formation) but was observed to be least effectively colonized by bacteria (>50% decrease in bacterial adherence of all strains). The highest surface EWF with the lowest surface free energy (RI-K122-4 generated) was more extensively colonized by bacteria, with the binding of some strains being equivalent to unmodified steel. The D+RI generated surface was least effective in minimizing biofilm formation, where some strains displayed enhanced bacterial colonization. Fluorescent microscopy revealed that the D and RI peptides displayed similar but clearly different binding patterns, suggesting that the peptides recognized different sites on the steel, and that differential binding of the peptides to the steel surfaces influences the binding of different bacterial strains and species. We have demonstrated that stainless steel surfaces can be easily modified by peptides to generate surfaces with new physiochemical properties. The D-K122-4-modified surface substantially decreases biofilm formation compared to the RI-K122-4 and D+RI surfaces.
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Abstract
The increased use of medical implants has resulted in a concomitant rise in device-related infections. The majority of these infections are caused by Staphylococcus epidermidis biofilms. Immunoprophylaxis and immunotherapy targeting in vivo-expressed, biofilm-associated, bacterial cell surface-exposed proteins are promising new approaches to prevent and treat biofilm-related infections, respectively. Using an in silico procedure, we identified 64 proteins that are predicted to be S. epidermidis surface exposed (Ses), of which 36 were annotated as (conserved) hypothetical. Of these 36 proteins, 5 proteins-3 LPXTG motif-containing proteins (SesL, SesB, and SesC) and 2 of the largest ABC transporters (SesK and SesM)-were selected for evaluation as vaccine candidates. This choice was based on protein size, number of antigenic determinants, or the established role in S. epidermidis biofilm formation of the protein family to which the candidate protein belongs. Anti-SesC antibodies exhibited the greatest inhibitory effect on S. epidermidis biofilm formation in vitro and on colonization and infection in a mouse jugular vein catheter infection model that includes biofilms and organ infections. Active vaccination with a recombinant truncated SesC inhibited S. epidermidis biofilm formation in a rat model of subcutaneous foreign body infection. Antibodies to SesC were shown to be opsonic by an in vitro opsonophagocytosis assay. We conclude that SesC is a promising target for antibody mediated strategies against S. epidermidis biofilm formation.
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Mai YJ, Jie XH, Liu LL, Yu N, Zheng XX. The study on vulcanization fouling behavior of nanocrystalline layer. SURF INTERFACE ANAL 2012. [DOI: 10.1002/sia.3799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Gallardo-Moreno A, Multigner M, Calzado-Martín A, Méndez-Vilas A, Saldaña L, Galván J, Pacha-Olivenza M, Perera-Núñez J, González-Carrasco J, Braceras I, Vilaboa N, González-Martín M. Bacterial adhesion reduction on a biocompatible Si+ ion implanted austenitic stainless steel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.07.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Davis EM, Li DY, Irvin RT. A peptide – stainless steel reaction that yields a new bioorganic – metal state of matter. Biomaterials 2011; 32:5311-9. [DOI: 10.1016/j.biomaterials.2011.04.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 04/08/2011] [Indexed: 10/18/2022]
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Abstract
Modern microbiological research has increasingly focused on the interactions between bacterial cells and the surfaces that they inhabit. To this end, microfluidic devices have played a large role in enabling research of cell-surface interactions, especially surface attachment and biofilm formation. This review provides background on microfluidic devices and their use in biological systems, as well specific examples from current literature. Methods to observe and interrogate cells within microfluidic devices are described, as well as the analytical techniques that are used to collect these data.
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Affiliation(s)
- Aaron P Mosier
- College of Nanoscale Science and Engineering (CNSE), University at Albany, Albany, NY, USA.
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Yu B, Lesiuk A, Davis E, Irvin RT, Li DY. Surface nanocrystallization for bacterial control. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:10930-10934. [PMID: 20433185 DOI: 10.1021/la100859m] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Stainless steel is commonly used in indwelling medical devices, food preparation, and heavy industry. Bacteria display reduced adherence to nanocrystallized stainless steel. In this article, we present quantitative information on the surface adhesive force, surface electron work function, and bacterial adherence to surfaces of nanocrystallized stainless steel with differing grain sizes. Surface nanocrystallization was achieved by sandblasting followed by recovery treatment. The adhesive force of bacterial binding to nanocrystallized surfaces was measured using an atomic force microscope with a synthetic-peptide-coated AFM tip designed to mimic the bacterial binding site of Pseudomonas aeruginosa, a common pathogen known to form biofilms. The electron work function of the steel surfaces was measured, and bacterial binding assays were performed using subinoculated P. aeruginosa cultures. It was demonstrated that for nanograined steel surfaces, the adhesive force, peptide adherence, surface electron activity, and bacterial binding all decreased with decreasing grain size.
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Affiliation(s)
- Bin Yu
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V2
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Oh YJ, Lee NR, Jo W, Jung WK, Lim JS. Effects of substrates on biofilm formation observed by atomic force microscopy. Ultramicroscopy 2009; 109:874-80. [PMID: 19394143 DOI: 10.1016/j.ultramic.2009.03.042] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Formation of biofilm is known to be strongly dependent on substrates including topography, materials, and chemical treatment. In this study, a variety of substrates are tested for understanding biofilm formation. Sheets of aluminum, steel, rubber, and polypropylene have been used to examine their effects on formation of Pseudomonas aeruginosa biofilm. In particular, the morphological variation, transition, and adhesiveness of biofilm were investigated through local measurement by atomic force microscopy (AFM). Mechanism of removing biofilm from adhering to substrate is also analyzed, thus the understanding of the mechanism can be potentially useful to prevent the biofilm formation. The results reveal that formation of biofilm can remain on rough surface regardless of substrates in hot water, which may easily induce extra-polymeric substances detachment from bacterial surface. By probing using AFM, local force-distance characterization of extra-cellular materials extracted from the bacteria can exhibit the progress of the biofilm formation and functional complexities.
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Affiliation(s)
- Y J Oh
- Department of Physics, Ewha Womans University, Seoul 120-750, Korea
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