- Temperature: The synthesis temperature can affect the size and crystallinity of nanomaterials. - pH Levels: pH can influence the surface charge and stability of nanoparticles. - Concentration of Precursors: This can determine the growth rate and size distribution. - Reaction Time: Determines the completeness of the reaction and the growth of nanoparticles. - Stirring Speed: Affects the homogeneity and aggregation state of the nanoparticles.