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Biofouling and microbiologically influenced corrosion are processes of material deterioration that originate from the attachment
of microorganisms as quickly as the material is immersed in a nonsterile environment. Stainless steels, despite their wide
use in different industries and as appliances and implant materials, do not possess inherent antimicrobial properties. Changes
in hygiene legislation and increased public awareness of product quality makes it necessary to devise control methods that
inhibit biofilm formation or to act at an early stage of the biofouling process and provide the release of antimicrobial compounds
on a sustainable basis and at effective level. These antibacterial stainless steels may find a wide range of applications
in fields, such as kitchen appliances, medical equipment, home electronics, and tools and hardware. The purpose of this study
was to obtain antibacterial stainless steel and thus mitigate the microbial colonization and bacterial infection. Copper is
known as an antibacterial agent; in contrast, niobium has been demonstrated to improve the antimicrobial effect of copper
by stimulating the formation of precipitated copper particles and its distribution in the matrix of the stainless steel. Thus,
we obtained slides of 3.8% copper and 0.1% niobium alloyed stainless steel; subjected them to three different heat treatment
protocols (550°C, 700°C, and 800°C for 100, 200, 300, and 400 hours); and determined their antimicrobial activities by using
different initial bacterial cell densities and suspending solutions to apply the bacteria to the stainless steels. The bacterial
strain used in these experiments was Escherichia coli CCM 4517. The best antimicrobial effects were observed in the slides of stainless steel treated at 700°C and 800°C using
an initial cell density of approximately 105 cells ml−1 and phosphate-buffered saline as the solution in which the bacteria came into contact with copper and niobium–containing
steel. 相似文献
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Matres Jerlie Mhay Hilscher Julia Datta Akash Armario-Nájera Victoria Baysal Can He Wenshu Huang Xin Zhu Changfu Valizadeh-Kamran Rana Trijatmiko Kurniawan R. Capell Teresa Christou Paul Stoger Eva Slamet-Loedin Inez H. 《Transgenic research》2021,30(4):461-498
Transgenic Research - Genome-editing technologies offer unprecedented opportunities for crop improvement with superior precision and speed. This review presents an analysis of the current state of... 相似文献
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