Date of Graduation
Statler College of Engineering and Mineral Resources
Chemical and Biomedical Engineering
Ray Y. K. Yang.
Stevia and red beet suspension cultures were examined for uptake of silver from AgNO3 solution. Alfalfa and mung bean sprouts were also studied for silver accumulation when grown in AgNO3 solution. AA analysis confirmed the presence of silver in both sprouts and suspension cultures after exposure to AgNO3 solution, despite the toxic effects of silver on the living matter.;Extract from Pelargonium graveolens underwent reaction with both AgNO3 and KAuCl4 to form silver or gold nanoparticles. For the reaction with AgNO3, light was required to initiate the reaction. In contrast, reactions producing gold nanoparticles did not require light to react. Oxygen appeared to have little, if any, influence on reactions involving gold or silver. The reactions were monitored for pH changes, and pH-controlled reactions were also studied. Furthermore, the reaction was chemically simulated using NaBH4 as a reducing agent, yielding results similar to those observed for reactions involving geranium extract.
Fridley, Brooke A., "Phytoformations of silver and gold nanoparticles" (2006). Graduate Theses, Dissertations, and Problem Reports. 1853.