Gold nanoparticles has shown to form by mixingof HAuCl4 and BSA. From past experiments, Bakshi, et al. showed that different mole ratios of Au/protein samples yielded samples that either had purple solutions, or purple fibers, or both. The goal of the project is to find out the fiber formation in relation to mole ratio of gold to protein, and how environmental factors such as pH, ionic strength, isoelectric point of protein affects gold nanoparticle formation.