title: Improving the fluorescence detection limit with positively charged carbon nanostructures as a low background signal platform.
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.
authors.affiliation: College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China. fei_junjie@xtu.edu.cn.
authors.forename: Xiulan
authors.initials: X
authors.lastname: He
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Hetong
authors.initials: H
authors.lastname: Qi
authors.forename: Ping
authors.initials: P
authors.lastname: Yu
authors.forename: Junjie
authors.initials: J
authors.lastname: Fei
authors.forename: Lanqun
authors.initials: L
authors.lastname: Mao
mesh_terms: D002244:Carbon / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry; D057230:Limit of Detection; D049329:Nanostructures; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D005456:Fluorescent Dyes; D002244:Carbon