The employment of stainless steel

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Table of contents

CHAPTER: I Cold plasma surface treatments to prevent biofilm formation in food industries and medical sectors
Abstract
Introduction
Factors influencing the bacterial adhesion to a substrate
Cold plasma technologies
Approaches for cold plasma surface modification
Plasma physico-chemical modification to surface
Cold plasma applications
Cold plasma treatments of materials for preventing bacterial adhesion
Conclusion
References
CHAPTER: II Antimicrobial peptides coated stainless steel for fighting biofilms formation in food and medical fields
Abstract
Introduction
The employment of stainless steel
Antimicrobial coatings on stainless steel incorporating biocides
Silver nanoparticles coated on stainless steel
Essential oils coated on stainless steel
Light-Activated Antimicrobials coated on stainless steel
Cationic molecules coated on stainless steel
Antibiotics coated on stainless steel
Enzymes coated on stainless steel
Generalities on antimicrobial peptides
Stainless steel coatings incorporating antimicrobial peptides
Nisin qualification
Nisin antimicrobial properties and mechanism of action
Nisin antimicrobial spectrum and applications
Conclusion
CHAPTER: III Cold plasma assisted deposition of organosilicon coatings on stainless steel for Salmonella enterica serovar Enteritidis adhesion prevention
Abstract
Introduction
Materials and Methods
Materials, bacterial strains and culture condition
Plasma coatings Elaboration
Fourier transform infrared characterization
Water contact angle measurements
MATS: Microbial affinity to solvents
Bacterial suspension and adhesion test
Surface roughness and thickness analyses
Evaluation of coating adhesion to stainless steel
Scanning electron microscopy analyses
Statistical analysis
Results
Chemical properties of TMDS coatings
Anti-adhesive character of TMDS coatings
Topography of TMDS coatings
Discussion
Conclusion
References
CHAPTER: IV Nisin-based coatings for the prevention of biofilm formation: Surface characterization and antimicrobial assessments
ABSTRACT
Introduction
Material and methods
Approaches for coatings elaboration
Standardized SS slides preparation
Bacterial strain, culture conditions and suspension preparation
Protocols for coatings elaboration
 Stainless steel/polydopamine (SD) coatings
 Stainless steel/polydopamine/nisin (SDN) coatings
 Stainless steel/polydopamine/glutaraldehyde/nisin (SDGN) coatings
 Stainless steel/polydopamine/succinic acid /nisin (SDAN) coatings
Bacterial adhesion tests in NEC biofilm system
Antibacterial challenge test
Assessment of the bacterial viability with the Live/Dead backlight viability kit
Qualitative antibacterial assessment of treated surfaces
Water contact angle measurements
Surface roughness and thickness analyses
Ion polishing of coatings
Fourier Transform Infrared analysis
ToF-SIMS analysis
XPS analysis
Statistical analysis
Results
Antibacterial effect of nisin coated SS
Surface characterization of SS coated films
Discussion
Conclusion
References
CONCLUSIONS AND PERSPECTIVES
References