Herein, a metal-organic framework (MOF) was modified using polydopamine (PDA) to develop the MOF-PDA as a photoresponsive bacteria-killing agent under 660 nm light irradiation. The modification using PDA led to the production of not only more heat, but also much more ¹O₂. This is because the PDA could interact with the porphyrin ring of the MOF through π-π interaction and the charge transfer between PDA and the MOFs decreases the energy of the band of hybrid nanoparticles. In addition, greater levels of hyperthermia induced by PDA modification accelerated the charge transfer, which significantly strengthened the photocatalytic performance of MOF-PDA. Furthermore, after modification, the light absorbance and water dispersibility of nanoparticles were both enhanced; both are important for the improvement of photocatalytic and photothermal properties. Consequently, MOF-PDA exhibited the highly effective antibacterial efficacy of 99.62 % and 99.97 % against Staphylococcus aureus and Escherichia coli, respectively, under 20 min 660 nm light irradiation.

在此，使用聚多巴胺（PDA）修饰金属有机骨架（MOF），以在660nm的光照射下开发MOF-PDA作为光响应性细菌杀灭剂。使用PDA进行修改不仅导致产生更多的热量，而且产生更多的¹ O _2。。这是因为PDA可以通过π-π相互作用与MOF的卟啉环相互作用，并且PDA和MOF之间的电荷转移降低了杂化纳米粒子带的能量。此外，PDA修饰引起的更高水平的热疗加速了电荷转移，从而显着增强了MOF-PDA的光催化性能。此外，改性后纳米颗粒的吸光度和水分散性均得到提高。两者对于改善光催化和光热性能都很重要。因此，在20分钟的660 nm光照射下，MOF-PDA对金黄色葡萄球菌和大肠杆菌分别表现出99.62％和99.97％的高效抗菌效果。