초록 |
A simple, green, and one-pot synthesis of platinum nanoparticles via the reaction of an aqueous mixture of a platinum precursor and a macrocycle in the presence of an alkaline solution at room temperature was achieved without introducing any kind of traditional reducing agents and/or external energy sources. Further, we could control the particle size by simply altering the experimental conditions such as reaction concentration. Therefore, we demonstrated that macrocycles, e.g., cucurbiturils, not only are able to act as protecting agents, but also can act as reducing agents for the synthesis of platinum nanoparticles with tunable size at ambient conditions. We consider this approach to be a facile and important generic method for the synthesis of metal nanoparticles in aqueous solution, which is an important aspect for the exploration of biomedical applications and environmental impact of various metal nanoparticles that are currently prepared in organic solvents. |