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Novel Metallic Materials with Antibacterial Function and Corrosion Resistance
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Novel Metallic Materials with Antibacterial Function and Corrosion Resistance

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Corrosion".

Deadline for manuscript submissions: closed (20 October 2022) | Viewed by 9866

Special Issue Editor

Prof. Dr. Chunguang Yang

E-Mail Website
Guest Editor
Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
Interests: metal biomaterials; antibacterial property; corrosion resistance; mechanical property

Special Issue Information

Dear Colleagues,

Antibacterial metals are a novel class of functional materials that generally have broad-spectrum antibacterial properties. Their development history has exceeded 20 years. The types of antibacterial metals are mainly divided into two kinds of treatment methods, namely coating treatment and adding antibacterial elements into the metals during the smelting process. The commonly recognized antibacterial metal elements include Ag, Cu, Zn, La, and Ce. In general, the addition of antibacterial elements has no obvious influence on the mechanical properties of the metal materials, and thus these kinds of antibacterial metals have very broad application prospects, such as in medical instruments and various utensils.

We believe that the development of antibacterial metals will depend on the design of the materials and the performance evaluation of new materials. Thus, this Special Issue will focus on the antibacterial design; preparation methods; antibacterial properties and mechanisms; and key service properties in specific environmental conditions, including mechanical, fatigue, wear, corrosion, and biosafety properties.

We kindly invite you to submit your work to this Special Issue. Full papers, communications, and reviews are all welcome.

Prof. Dr. Chunguang Yang
Guest Editor

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • antibacterial property
  • antibacterial mechanism
  • biofilm
  • preparation
  • mechanical property
  • fatigue
  • wear
  • corrosion
  • biocompatibility

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Published Papers (3 papers)

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Research

16 pages, 18952 KiB  
Article
Corrosion Resistance of Selective Laser Melted Ti6Al4V3Cu Alloy Produced Using Pre-Alloyed and Mixed Powder
by Gonghao Huang, Zefeng Fan, Liu Li, Yanjin Lu and Jinxin Lin
Materials 2022, 15(7), 2487; https://doi.org/10.3390/ma15072487 - 28 Mar 2022
Cited by 5 | Viewed by 2008
Abstract
Metallic elemental powder mixture and pre-alloyed metallic powder are both frequently used powder feedstock in the additive manufacturing process. However, little research has been conducted to compare the corrosion behavior of selective laser melting (SLM) alloys, fabricated by pre-alloyed metallic powder and mixed [...] Read more.
Metallic elemental powder mixture and pre-alloyed metallic powder are both frequently used powder feedstock in the additive manufacturing process. However, little research has been conducted to compare the corrosion behavior of selective laser melting (SLM) alloys, fabricated by pre-alloyed metallic powder and mixed metallic powder. Hence, it is important to investigate the corrosion behavior of SLMed alloys, as well as the corresponding cast ingot, with the aim to better understand the feasibility of designing new materials. In this work, the SLM-produced Ti6Al4V3Cu alloys were manufactured using a metallic elemental powder mixture and pre-alloyed metallic powder, respectively. The corrosion behavior of the different Ti6Al4V3Cu alloys was investigated in following electrochemical tests and ion release measurements. The results showed that the Ti6Al4V3Cu alloy prepared by pre-alloyed metallic powder showed better corrosion resistance than that produced from mixed metallic powder. Moreover, the SLM-produced Ti6Al4V3Cu alloys performed significantly better in corrosion resistance than the cast Ti6Al4V3Cu. The results are expected to achieve a better understanding of the feasibility of designing new materials using mixed powders, contributing to reducing development costs and cycles. Full article
(This article belongs to the Special Issue Novel Metallic Materials with Antibacterial Function and Corrosion Resistance)
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16 pages, 2787 KiB  
Article
Green Synthesis of Zinc Oxide Nanoparticles (ZnO-NPs) by Pseudomonas aeruginosa and Their Activity against Pathogenic Microbes and Common House Mosquito, Culex pipiens
by Abdullah M. Abdo, Amr Fouda, Ahmed M. Eid, Nayer M. Fahmy, Ahmed M. Elsayed, Ahmed Mohamed Aly Khalil, Othman M. Alzahrani, Atef F. Ahmed and Amal M. Soliman
Materials 2021, 14(22), 6983; https://doi.org/10.3390/ma14226983 - 18 Nov 2021
Cited by 85 | Viewed by 4696
Abstract
The synthesis of nanoparticles by green approaches is gaining unique importance due to its low cost, biocompatibility, high productivity, and purity, and being environmentally friendly. Herein, biomass filtrate of Pseudomonas aeruginosa isolated from mangrove rhizosphere sediment was used for the biosynthesis of zinc [...] Read more.
The synthesis of nanoparticles by green approaches is gaining unique importance due to its low cost, biocompatibility, high productivity, and purity, and being environmentally friendly. Herein, biomass filtrate of Pseudomonas aeruginosa isolated from mangrove rhizosphere sediment was used for the biosynthesis of zinc oxide nanoparticles (ZnO-NPs). The bacterial isolate was identified based on morphological, physiological, and 16S rRNA. The bio-fabricated ZnO-NPs were characterized using color change, UV-visible spectroscopy, FT-IR, TEM, and XRD analyses. In the current study, spherical and crystalline nature ZnO-NPs were successfully formed at a maximum SPR (surface plasmon resonance) of 380 nm. The bioactivities of fabricated ZnO-NPs including antibacterial, anti-candida, and larvicidal efficacy were investigated. Data analysis showed that these bioactivities were concentration-dependent. The green-synthesized ZnO-NPs exhibited high efficacy against pathogenic Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa), and unicellular fungi (Candida albicans) with inhibition zones of (12.33 ± 0.9 and 29.3 ± 0.3 mm), (19.3 ± 0.3 and 11.7 ± 0.3 mm), and (22.3 ± 0.3 mm), respectively, at 200 ppm. The MIC value was detected as 50 ppm for E. coli, B. subtilis, and C. albicans, and 200 ppm for S. aureus and P. aeruginosa with zones of inhibition ranging between 11.7 ± 0.3–14.6 ± 0.6 mm. Moreover, the biosynthesized ZnO-NPs showed high mortality for Culex pipiens with percentages of 100 ± 0.0% at 200 ppm after 24 h as compared with zinc acetate (44.3 ± 3.3%) at the same concentration and the same time. Full article
(This article belongs to the Special Issue Novel Metallic Materials with Antibacterial Function and Corrosion Resistance)
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10 pages, 5689 KiB  
Article
Study on a Novel Biodegradable and Antibacterial Fe-Based Alloy Prepared by Microwave Sintering
by Bin Deng, Yingxue Guo, Ming-Chun Zhao, Qing-Fen Li, Bin Ma, Bohua Duan, Dengfeng Yin and Andrej Atrens
Materials 2021, 14(14), 3784; https://doi.org/10.3390/ma14143784 - 6 Jul 2021
Cited by 16 | Viewed by 2280
Abstract
This research produced a porous Fe-8 wt.% Cu alloy by microwave sintering in order to achieve (i) an increased biodegradation rate, and (ii) an antibacterial function. The Fe-8Cu alloy had higher density, hardness and degradation rate (about 2 times higher) but smaller and [...] Read more.
This research produced a porous Fe-8 wt.% Cu alloy by microwave sintering in order to achieve (i) an increased biodegradation rate, and (ii) an antibacterial function. The Fe-8Cu alloy had higher density, hardness and degradation rate (about 2 times higher) but smaller and fewer surface pores, compared to the pure Fe. The Fe-8Cu alloy had a strong antibacterial function (the antibacterial rates against E. coli were up to 99.9%) and good biocompatibility. This work provides a novel approach of alloy design and processing to develop novel antibacterial Fe-based alloys. Full article
(This article belongs to the Special Issue Novel Metallic Materials with Antibacterial Function and Corrosion Resistance)
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