Chen Kun, Zhang Xinyi, MacFarlane Douglas R
School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
Chem Commun (Camb). 2017 Jul 11;53(56):7949-7952. doi: 10.1039/c7cc03523c.
We report a simple approach to fabricate cost-effective and highly sensitive surface-enhanced Raman scattering substrates based on Au/Cu hybrid nanostructure arrays for the detection of urea, an important molecule in biological and medical fields. By effectively adjusting the gap size between neighbouring nanorods into the sub-10 nm regime, a high density of hot-spots was generated, enabling the substrates to detect urea signals at a concentration as low as 1 mM with great reproducibility.
我们报道了一种基于金/铜混合纳米结构阵列制造具有成本效益且高灵敏度的表面增强拉曼散射基底的简单方法，用于检测尿素，尿素是生物和医学领域中的一种重要分子。通过有效地将相邻纳米棒之间的间隙尺寸调整到亚10纳米范围，产生了高密度的热点，使基底能够以高重现性检测低至1 mM浓度的尿素信号。
