双分析物表面增强拉曼散射用于单分子检测的明确证据
Bi-Analyte Surface Enhanced Raman Scattering for unambiguous evidence of single molecule detection
摘要：
提出了一种确定单分子表面增强拉曼光谱（SERS）无歧义证明的方法。同时使用两种分析物分子能够清楚地确认信号的单个（或少数）分子性质。这种方法消除了以前实验中与低染料浓度相关的大部分不确定性。它进一步表明，单分子信号在SERS中是非常常见的，无论是在液体中还是在干燥基底上。
英文摘要：
A method is proposed to pin down an unambiguous proof for single molecule surface enhanced Raman spectroscopy (SERS). The simultaneous use of two analyte molecules enables a clear confirmation of the single (or few) molecule nature of the signals. This method eliminates most of the uncertainties associated with low dye concentrations in previous experiments. It further shows that single-molecule signals are very common in SERS, both in liquids and on dry substrates.
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