Abstract
Nanotechnology has drown great attention for it’s limitless application in various field like bio-sensors, nano-circuit, magnetic and semi-conducting nano-wires, quantum-dots etc. Investigations in this area may provide us an opportunity to incorporate it into next generation electronic, optical and magnetic materials and devices. Deinococcus rediodurans has long been studied for it’s extremely resistance against acute radiation damage which produces lethal DNA double strand breaks(DSB) within cells. Despite strong radiation resistance, Deinococcus rediodurans has several unique traits such as Mn induce cell division, thick cell wall with outer membrane, salt-mediate multi-cell formation etc. In this thesis we report another extraordinary phenomena from this bacteria which is previously undiscovered. Deinococcus rediodurans is able to produce mass amount of silver nanostructure under certain condition. We believe that Deinococcus rediodurans produces specific peptide for this activity. By using HPLC purification we’ve been able to identify this peptide. After purification we further investigate it’s molecular weight. With help from confocal microscopy and transmission emission microscopy which provide us more data in details for further exanimation of the mechanism behind this bio-inspired silver nano-wire synthesis and hopefully applies biotechnology into nano-science.