Physical Sciences and Mathematics Commons^™

Fabrication, Characterization And Applications Of Chemically Modified Planar Metallic Electrodes From Copper Clad Sheets, Rana T. K. Alsaidi

Theses

In this work, we developed a fabricating method for planar electrodes by milling and cutting copper-clad sheets. The main objectives of this thesis are to produce customized planar electrodes with different geometries with relatively higher reusability compared to the screen-printed electrodes available by commercial vendors. The fabricated electrodes from copper-clad sheets were electroplated with different metals using commercial electroplating baths to produce different metallic planar electrodes. Also, the fabrication of planar electrodes with cavities to be filled with modified carbon paste was done. The electroplated planar electrodes were characterized by the cyclic voltammetry technique. In addition to that, they were …

Effect Of Various Heavy Metals On The Enzymatic Activity Of Bacterial Alkaline Phosphatase, Maithah Maktoom Salmeen Al Nuaimi

Theses

Soil is a natural resource that is utmost importance from an agricultural as well as environmental perspective. Good soil health not only helps improve the quality and yield of agriculture products, but is also important for recycling of significant amounts of organic biomass. However, pollution of soil by various pollutants, such as heavy metals, pesticides or petroleum hydrocarbons, can lead to serious environmental as well as biological effects. This pollution can directly harm animals and human beings, leach into drinking water source, damage plants and vegetation, as well as affect the endemic microorganisms and insects living in the soil.

Microorganisms …