title: An ultrasensitive fluorescent sensing nanofilm for organic amines based on cholesterol-modified perylene bisimide.
abstract: A stable, ultrasensitive, and fully reversible fluorescent sensing film for organic amines has been fabricated by assembling cholesterol (Chol)-derived perylene bisimide on a glass plate surface. The compound exhibits excellent film formation properties and forms well-defined nanofibers, as evidenced by SEM and AFM measurements. It has been revealed that besides the molecular structure of the specially designed perylene derivative, the existence of nanofibers in the film is another key factor to endow the film with superior sensing ability for organic amines, including aniline. The detection limit of the amine is ca. 150.0 ppt in the vapor phase and at room temperature. Furthermore, the sensing process is free of interference from common organic solvents, nitroaromatics, and particularly phenols, which makes the film a potential candidate to be used in lung cancer diagnoses and related applications.
authors.affiliation: Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, PR China.
authors.forename: Haonan
authors.initials: H
authors.lastname: Peng
authors.forename: Liping
authors.initials: L
authors.lastname: Ding
authors.forename: Taihong
authors.initials: T
authors.lastname: Liu
authors.forename: Xiangli
authors.initials: X
authors.lastname: Chen
authors.forename: Lan
authors.initials: L
authors.lastname: Li
authors.forename: Shiwei
authors.initials: S
authors.lastname: Yin
authors.forename: Yu
authors.initials: Y
authors.lastname: Fang
mesh_terms: D000588:Amines / Q000032:analysis*; D000814:Aniline Compounds / Q000032:analysis; D002784:Cholesterol / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry; D007094:Imides / Q000737:chemistry*; D057230:Limit of Detection; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D000588:Amines; D000814:Aniline Compounds; D005456:Fluorescent Dyes; D007094:Imides; C510697:perylene bisimide; D010569:Perylene; D002784:Cholesterol; C023650:aniline