Contino Annalinda, Maccarrone Giuseppe, Fragalà Maria E, Spitaleri Luca, Gulino Antonino
Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
INSTM UdR of Catania, Viale Andrea Doria 6, 95125, Catania, Italy.
Chemistry. 2017 Oct 20;23(59):14937-14943. doi: 10.1002/chem.201703523. Epub 2017 Sep 25.
Gold nanoparticles show important properties owing to their electronic structures. A limitation of some gold nanoparticles is that they either show surface plasmons or luminescence. The increase in size of the gold nanoparticles, and the appearance of the surface plasmons may result in the disappearance of luminescence. The aim of our study is the nanoscale assembly of Au nanoparticles on a monolayer of porphyrin molecules anchored to functionalized inorganic surfaces. This functional architecture not only exhibits a strong surface plasmon due to the gold nanoparticles, but also a strong luminescence signal from the porphyrin molecules. Finally we observed a long-range order in the Au nanoparticles conjugated to the porphyrin monolayer.
金纳米颗粒因其电子结构而展现出重要特性。一些金纳米颗粒的一个局限在于它们要么表现出表面等离子体激元，要么表现出发光现象。金纳米颗粒尺寸的增加以及表面等离子体激元的出现可能导致发光现象消失。我们研究的目的是在锚定在功能化无机表面的卟啉分子单层上进行金纳米颗粒的纳米级组装。这种功能结构不仅由于金纳米颗粒而展现出强烈的表面等离子体激元，还由于卟啉分子而产生强烈的发光信号。最后，我们观察到与卟啉单层共轭的金纳米颗粒呈现出长程有序排列。
