title: Use of metal-enhanced fluorescence spectroscopy for detection of polycyclic aromatic hydrocarbons in diesel oil emulsions in artificial seawater.
abstract: In this study, we employed the metal-enhanced fluorescence (MEF) method for the detection of polycyclic aromatic hydrocarbons (PAHs) in diesel oil emulsions in artificial seawater. Silver nanoparticles with an average diameter of 80 nm were immobilized onto silanized quartz as MEF substrates. Excited by illumination at 355 nm, a 4.6-fold increase in the fluorescence signals of PAHs was recorded when MEF substrates were used. The finite-difference time-domain (FDTD) method was used to provide mechanistic insights into the fluorescence enhancement. Monitoring water pollution has environmental significance and MEF spectroscopy is finding direct applications in this field.
authors.affiliation: Institute of Modern Optics, Nankai University, Tianjin 300071, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Song-Cheng
authors.initials: SC
authors.lastname: Mao
authors.forename: Ping
authors.initials: P
authors.lastname: Chen
authors.forename: Ji-Cheng
authors.initials: JC
authors.lastname: Cui
authors.forename: Yu-Guo
authors.initials: YG
authors.lastname: Tang
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
authors.forename: Lie
authors.initials: L
authors.lastname: Lin
authors.forename: Xiang-Dong
authors.initials: XD
authors.lastname: Qi
mesh_terms: D004784:Environmental Monitoring; D053768:Metal Nanoparticles; D010578:Petroleum / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012623:Seawater / Q000032:analysis*; D013050:Spectrometry, Fluorescence
chemical_list: D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons