title: Ionic liquid-functionalized fluorescent carbon nanodots and their applications in electrocatalysis, biosensing, and cell imaging.
abstract: In this article, ionic liquid-functionalized carbon nanodots (IL-CDs) were produced in a simple manner by electrochemical exfoliation of graphite rods in the presence of an amino-terminated ionic liquid, and their preliminary applications were exploited. TEM and AFM results showed that these IL-CDs are about 2.6 nm in diameter. The small-sized IL-CDs have strong photoluminescence, with a quantum yield of about 11.3%, and could be used for cell imaging. Moreover, the IL-CDs exhibit good electron transfer properties and catalytic activities for O2 and H2O2 reduction. Additionally, the as-prepared IL-CDs can be applied as a matrix for immobilizing enzymes (glucose oxidase) to construct biosensors. Due to these favorable properties, IL-CDs will find promising practical applications in electrocatalysis, biosensing, and bioimaging.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China.
authors.forename: Haijuan
authors.initials: H
authors.lastname: Li
authors.forename: Limei
authors.initials: L
authors.lastname: Chen
authors.forename: Haoxi
authors.initials: H
authors.lastname: Wu
authors.forename: Haili
authors.initials: H
authors.lastname: He
authors.forename: Yongdong
authors.initials: Y
authors.lastname: Jin
mesh_terms: D015374:Biosensing Techniques; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D004563:Electrochemistry; D005456:Fluorescent Dyes / Q000737:chemistry*; D006367:HeLa Cells; D006801:Humans; D052578:Ionic Liquids / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D061848:Optical Imaging / Q000379:methods*
chemical_list: D005456:Fluorescent Dyes; D052578:Ionic Liquids; D002244:Carbon