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Improving the fluorescence detection limit with positively charged carbon nanostructures as a low background signal
Xiulan He1, Li Zhang, Hetong Qi
1College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China. fei_junjie@xtu.edu.cn.
The Analyst
|March 19, 2014
Abstract:
We have demonstrated a new strategy to improve the fluorescence detection limit by enhancing the energy transfer efficiency between carbon structures and fluorescent dyes using polyimidazolium-functionalized carbon nanostructures as a low background signal platform. Based on this, a highly sensitive method for thrombin was proposed with a detection limit as low as 2.79 pM without any amplification.

