Search Results (94)
Plasma sterilization of microorganisms
The sterilization efficiency of oxygen plasma was studied. Plasma was created in pure oxygen with an inductively coupled radiofrequency discharge. The discharge power was estimated to about 180 W. Plasma parameters were measured with a double Langmuir probe and a catalytic probe. Plasma parameters depended on pressure in the discharge …
Analysis of bacteria damages caused by treatment with oxygen plasma particles
The possible mechanisms for destruction of two types of bacteria with oxygen radicals were studied. Samples consisting of standard ATCC strains of Gram – positive bacteria Staphylococcus aureus and Gram – negative bacteria Escherichia coli were obtained. Bacteria were cultivated according to the standard procedures and fixed on substrates of …
High-alumina porcelain with improved mechanical and thermal properties
The study presents the influence of increasing the amount of β-spodumene (LiAlSi2O6) as Li2O-content flux on phase composition, microstructural evolution and physical properties of high alumina porcelain material containing ~61% of Al2O3. New porcelain compositions based on clays and high amount of calcined alumina were developed with the introduction of …
Functional interpretation of gene expression data
Microarrays are at the center of a revolution in biotechnology, allowing researchers to simultaneously monitor the expression of tens of thousands of genes. The final aim of a typical microarray experiment is to find a molecular explanation for a given macroscopic observation (e.g., which pathways are affected by the loss …