Antimicrobial Properties of Semiconductive Oxide Nanoparticles. From Fundamental to Application
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2014, Vol 37, Issue 2
Abstract
A problem of modern society is the spread of diseases worldwide. Infection control and maintaining a high level of hygiene by applying antimicrobial coatings (including medical products, packaging materials, membrane filter/water treatment or filters in air conditioning) are of the greatest importance. Hospitals, pharmaceutical production, food factories must be thoroughly disinfected in order to destroy pathogenic microbes. Microbial contamination of water is a major threat to public health. With the emergence of organisms resistant to many antimicrobial agents there is an increased demand for improved disinfection methods. Recently, the confluence of nanotechnology and biology has led to metals and metal oxides under the form of nanoparticles as potential antimicrobial agents. Nanoparticles have unique and well defined physical and chemical properties which can be manipulated suitably for desired applications. The applications of nanoparticles as antimicrobials is gaining relevance in prophylaxis and therapeutics, in medical devices, food industry and textile fabrics. This work focuses on the properties of ZnO nanoparticles doped with different concentrations of silver. The mechanism of action of nanoparticles as bactericidal will be highlighted in this study. Specific applications of the investigated nanoparticles are presented.
Authors and Affiliations
Mariana (BUȘILĂ) IBĂNESCU, Dana TUTUNARU, Viorica MUȘAT
The Mechanism of Phase Transformation to Obtain Zinc-Iron Coatings
Important changes in the ratio of constitutive phases take place during heating of galvanized parts due to Zn coating layer changed into Zn-Fe alloy. The work deals with a mathematical correlation between diffusion pheno...
Compressive Behaviour of Ultra-Sonicated Starch / Carbon Black / Epoxy Composites
Fillers are generally used in order to change some basic properties of polymer matrix but the filler particles often tend to aggregate with consequences in terms of the mechanical properties of the final composite. In or...
Researches on the Viscoplastic Behavior of a CrMo Alloyed Steel
The paper shows the results of the researches concerning the deformation behavior of alloyed steel with chromium and molybdenum. The plastic deformation behavior is researched in the experimental way, using the torsion t...
Intercritical Thermomechanical Treatments Applied to the Steel Heavy Plates
This paperwork shows the laboratory experiments made on X60 and X65 steels with several intercritical thermomechanical treatment applications. Two variants were used: "down-up" thermomechanical treatment with heating and...
Anodization Treatment of Ti6Al4V in Electrolytes Containing HF
The Ti6Al4V alloy is already well-known likely material for implant applications. As well as pure titanium, Ti6Al4V alloy possess the ability to form spontaneously a thin passive oxide layer on the surface. This oxide la...