title: Highly luminescent organosilane-functionalized carbon dots as a nanosensor for sensitive and selective detection of quercetin in aqueous solution.
abstract: The organosilane-functionalized carbon dots (SiCDs) were synthesized using citric acid with N-(b-aminoethyl)-g-aminopropyl methyldimethoxy silane (AEAPMS). The as-synthesized SiCDs were characterized by IR, TEM, XPS, NMR and fluorescence. The SiCDs showed a strong emission at 455 nm with excitation at 365 nm. The SiCDs exhibited analytical potential as sensing probes for quercetin (QCT) determination. pH effect, temperature effect, interferences, and analytical performance of the method were investigated. It suggested that SiCDs exhibited high sensitivity and selectivity toward QCT: the linear ranges of SiCDs were estimated to be 0-40 μM while the limit of detection (LOD) was calculated to be 79 nM.
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors: Yu
authors: Y
authors: Zou
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China. Electronic address: yanfanyong@tjpu.edu.cn.
authors: Fanyong
authors: F
authors: Yan
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors: Tancheng
authors: T
authors: Zheng
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors: Dechao
authors: D
authors: Shi
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors: Fengzhan
authors: F
authors: Sun
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors: Ning
authors: N
authors: Yang
authors: State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Key Lab of Fiber Modification & Functional Fiber of Tianjin, Tianjin Polytechnic University, Tianjin 300387, PR China.
authors: Li
authors: L
authors: Chen
mesh_terms: D002244:Carbon / Q000737:chemistry*; D019343:Citric Acid / Q000737:chemistry; D049449:Luminescence; D049329:Nanostructures / Q000737:chemistry*; D011794:Quercetin / Q000032:analysis* / Q000737:chemistry; D012821:Silanes / Q000737:chemistry*; D012995:Solubility; D012996:Solutions; D014867:Water / Q000737:chemistry
chemical_list: D012821:Silanes; D012996:Solutions; D014867:Water; D019343:Citric Acid; D002244:Carbon; D011794:Quercetin
keywords: Carbon dots; Fluorescence; Organosilane; Quercetin detection