title: One-Pot Hydrothermal Synthesis of Carbon Dots with Efficient Up- and Down-Converted Photoluminescence for the Sensitive Detection of Morin in a Dual-Readout Assay.
abstract: Blue luminescent carbon dots (CDs) with a high photoluminescence (PL) quantum yield (48.3 ± 5.3%) were prepared by the one-pot hydrothermal reaction of citric acid with poly(ethylenimine) (PEI). The CDs display bright PL, narrow emission spectra, pH-dependent PL intensity, high photostability, and up-converted luminescence. The CDs exhibit a quenching of both down- and up-conversion PL in the presence of morin and thus serve as useful probes for morin detection. Both down- and up-conversion measurements allow the quantification of concentrations from 0 to 300 μmol/L with a detection limit of 0.6 μmol/L, and this dual-mode detection increases the reliability of the measurement. The proposed method of determination is simple, sensitive, and cost-effective, with potential applications in clinical and biochemical assays.
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.|Laboratory of Lipid and Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University , Chongqing 400016, China.
authors.forename: Jia-Yu
authors.initials: JY
authors.lastname: Li
authors.affiliation: Department of Chemical and Biological Engineering, The University at Buffalo, The State University of New York , Buffalo, New York 14260-4200, United States.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.|College of Chemical Engineering, Guizhou University of Engineering Science , Guizhou 551700, China.
authors.forename: Qun-Wei
authors.initials: QW
authors.lastname: Shu
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.
authors.forename: Jia-Man
authors.initials: JM
authors.lastname: Liang
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.
authors.forename: Xian-Ping
authors.initials: XP
authors.lastname: Chen
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.
authors.forename: Xiao-Yan
authors.initials: XY
authors.lastname: Deng
authors.affiliation: Department of Chemical and Biological Engineering, The University at Buffalo, The State University of New York , Buffalo, New York 14260-4200, United States.
authors.forename: Mark T
authors.identifier: 0000-0002-9652-687X
authors.initials: MT
authors.lastname: Swihart
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China.
authors.forename: Ke-Jun
authors.identifier: 0000-0002-7704-4234
authors.initials: KJ
authors.lastname: Tan