Parkhomenko Roman G, Knez Mato
CIC NanoGUNE, Tolosa Hiribidea 76, E-20018 San Sebastian, Spain.
IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, E-48009 Bilbao, Spain.
ACS Appl Nano Mater. 2022 Apr 22;5(4):4629-4633. doi: 10.1021/acsanm.2c00967. Epub 2022 Apr 12.
We present a method for producing gold nanorods surrounded by a hollow polymeric shell of polystyrenesulfonate and show that the cavities of such particles can be filled with various organic dyes. The approach consists of covering gold nanorods with silica, followed by its slow hydrolysis in an aqueous medium in the presence of the polymer thin layer permeable for dye molecules. The proposed method enables the yolk-shell nanoparticles to be obtained and loaded with organic dyes without a need to use thermal treatment and/or chemical etching, which makes it suitable for use in the creation of spasers.
我们提出了一种制备被聚苯乙烯磺酸盐空心聚合物壳包围的金纳米棒的方法，并表明此类颗粒的空腔可以填充各种有机染料。该方法包括用二氧化硅覆盖金纳米棒，然后在染料分子可渗透的聚合物薄层存在下，使其在水性介质中缓慢水解。所提出的方法能够在无需热处理和/或化学蚀刻的情况下获得并负载有机染料的蛋黄壳纳米颗粒，这使其适用于制备受激辐射放大的自发辐射纳米激光器。
