通过在棒状 Au@Ag 纳米晶体的核壳界面处包埋手性分子来增强等离子体圆二色性。
Enhancing the plasmonic circular dichroism by entrapping chiral molecules at the core-shell interface of rod-shaped Au@Ag nanocrystals.
机构信息
CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
出版信息
Chem Commun (Camb). 2016 Feb 4;52(10):2059-62. doi: 10.1039/c5cc08505e.
PMID:26687977
Abstract
We report the enhancement of plasmonic circular dichroism (PCD) in cysteine-modified Au nanorods via Ag coating. The entrapment of cysteine at the Au-Ag interface effectively amplifies the local electromagnetic field and leads to strong enhancement of the PCD response. Ag coating on spherical nanoparticles modified with cysteine does not generate obvious PCD signals.
摘要
我们报告了通过银涂层增强半胱氨酸修饰的金纳米棒中的等离子体圆二色性（PCD）。半胱氨酸在 Au-Ag 界面的捕获有效地增强了局部电磁场，并导致 PCD 响应的强烈增强。在半胱氨酸修饰的球形纳米粒子上涂覆银并不能产生明显的 PCD 信号。
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