At the same irradiation time,bigger and more aggregative Au nanoparticles were acquired as the ratio of 3.5 G PAMAM to HAuCl4 was decreased.

• 在相同照射条件下；随着3.；5 G PAMAM与HAu-Cl4物质的量比值的减小；得到的金纳米粒子粒径逐渐变大；且分散性变差