Crystal Growth and Kinetic Behaviour of Pseudoalteromonas espejiana Assisted Biosynthesized Gold Nanoparticles

Figure 10

Influence of different agitation speeds on AuNPs biosynthesis kinetics based on ICP-OES analysis. Highest AuNPs production was recorded at 150 rpm because optimum agitation increases the chances of exposure of gold ions to the enzymes resulting in higher production. The enzyme: substrate ratio was 2 : 3, the pH was kept at 9 and temperature at 30°C throughout the reaction with substrate concentration of 1 mg/L.