M.A. Thesis:

screening of new extermophil for biologic nano particle production of gold and paladium

Nanoparticles are particles between 1 and 100 nanometers in size. Nano particles can be made of metallic, semi-conductors, and non-conductive material. The most common types of nano particles are ceramic, metallic, polymer, and semi-conductive particles. Gold nanoparticles are one of the most commonly used particles which are used in many applications, for instance, in sensors, catalysts, and pharmaceutical applications. Gold nano particles are commonly used to cover other particles in order to prevent them from accumulation and be disposed by the immune system. Composition, density, and stability of gold has a huge effect on its bio-compatibility and safety and helps it to function as a career particle. Palladium nanoparticles have strong surface tension to mineral and biological materials and are used in filtration of biological pollutants. In this study, the goal was a screening of new bacteria for production of metallic nano particles of gold and palladium. We successfully produced the above mentioned nano particles with desirable size using bacterial supernatant. Palladium nano particles were produced after 24 hours incubation at 50°C in a 1.5 M solution and 2M glucose and Gold nano particles were produced in a 0.15 % (W/V) at 58°C.

Keywords: Nano particles, New bacteria , Palladium , Gold.