A novel approach was introduced for detection of copper ions presented in microalgae cells using gold nanorods (GNRs) and for determination of factors affecting the migration of copper ions between water and microalgae cells. It was feasible to detect the copper ions in algae cells (in both intracellular and extracellular fluids) by gold nanorods and investigate the migration mechanism of copper ions in algae cells. That pH of water environment had influenced the migration process. The copper ion concentration had a significant impact on the transition process. When the pH equals 7.1, the copper ion concentration reached its highest value in the microalgae cells. The combination of copper ions with microalgae cells and the binding mechanism were investigated that copper ions and microalgae cells were both related to organic functional groups appearing around the surface of microalgae cells. The binding sites of copper ions and algal cells are amino, hydroxyl and carboxyl groups that had significant impact on the metal migration.

引入了一种新方法，用于使用金纳米棒（GNR）检测微藻细胞中存在的铜离子，并确定影响铜离子在水和微藻细胞之间迁移的因素。用金纳米棒检测藻类细胞中（细胞内和细胞外液中）的铜离子并研究铜离子在藻类细胞中的迁移机制是可行的。水环境的pH值影响了迁移过程。铜离子浓度对过渡过程有重大影响。当pH等于7.1时，微藻细胞中的铜离子浓度达到最高值。研究了铜离子与微藻细胞的结合及结合机理，认为铜离子与微藻细胞均与微藻细胞表面周围出现的有机官能团有关。铜离子和藻类细胞的结合位点是对金属迁移有显着影响的氨基，羟基和羧基。