Laboratory of Supramolecular Chemistry and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
Langmuir. 2011 Jan 18;27(2):570-4. doi: 10.1021/la103715y. Epub 2010 Dec 16.
Controlled assembly of ferromagnetic nanoparticles on surfaces is of crucial importance for a range of spintronic and data storage applications. Here, we present a novel method for assembling monolayers of ferromagnetic FePt nanoparticles on silicon oxide substrates using "click chemistry". Reaction of alkyne-functionalized FePt nanoparticles with azide-terminated self-assembled monolayers (SAMs), on silicon oxide, leads to the irreversible attachment of magnetic nanoparticles to the surface via triazole linkers. Based on this covalent interaction, well-packed monolayers of FePt nanoparticles were prepared and nanoparticle patterns are generated on surfaces via microcontact printing (μCP).
在一系列的自旋电子学和数据存储应用中，表面上的铁磁纳米粒子的可控组装具有至关重要的意义。在这里，我们提出了一种使用“点击化学”在氧化硅衬底上组装铁磁 FePt 纳米粒子单层的新方法。炔基官能化的 FePt 纳米粒子与硅氧化物上的叠氮末端自组装单层（SAM）反应，通过三唑键不可逆地将磁性纳米粒子连接到表面上。基于这种共价相互作用，可以制备出具有良好组装的 FePt 纳米粒子单层，并通过微接触印刷（μCP）在表面上生成纳米粒子图案。
