Gold colloids with different particle sizes were synthesized using hydrogen tetrachloroaurate as the precursor and " na3 - citrate / nabh4 as the reducing agents . two - dimensional arrangements of gold particles and layered composites of gold with polymer pdda were prepared 以氯金酸为前驱体，以na _ 3 - citrate 、 nabh _ 4为还原剂制备了不同粒径的金纳米粒子，组装了金纳米粒子的单层或亚单层膜及其与聚合物pdda的多层复合膜。
