Abstract：
Gold nanorods (AuNRs) have attracted significant attention over the past several decades for a variety of applications and there has been steady progress with regards to their synthesis and modification. Despite these advances, the assembly of AuNRs into well-organized hierarchical assemblies remains a formidable challenge. Specifically, there is a need for tools that can fabricate assemblies of nanorods over large length scales at low cost with the potential for high-throughput manufacturing. Langmuir-Blodgettry is a monolayer deposition technique which has been primarily applied to amphiphilic molecules, but which has recently shown promise for the ordering of functionalized nanoparticles residing at the air-water interface. In this work, Langmuir-Blodgett deposition is explored for the formation of AuNR arrays for enhanced surface-enhanced Raman spectroscopy (SERS) sensing. In particular, both surface modification of the AuNRs as well as subphase modification with cysteamine were evaluated for AuNR array fabrication.
摘要：
在过去的几十年中，金纳米棒（AuNRs）在各种应用中引起了极大的关注，并且在其合成和修饰方面取得了稳步进展。尽管取得了这些进展,将AuNR组装成组织良好的分层组装仍然是一个巨大的挑战。具体来说,需要能够以低成本在大长度尺度上制造纳米棒的组件的工具,其具有用于高通量制造的潜力。Langmuir-Blodgetry是一种单层沉积技术，主要应用于两亲分子，但是最近显示出了在空气-水界面上有序的功能化纳米颗粒的希望。在这项工作中,探索了Langmuir-Blodgett沉积以形成用于增强表面增强拉曼光谱（SERS）传感的AuNR阵列。特别是,AuNRs的表面改性以及半胱胺的亚相改性均用于AuNR阵列的制造。
