title: Free-standing liposomal nanohybrid cerasomes as ideal materials for sensing of cupric ions.
abstract: Super-stable and free-standing cerasomes with inorganic polyorganosiloxane surfaces were developed for the sensing of Cu(2+) by encapsulating Nile red (NR) dye as a fluorescence reporter. 1,2-Dimynistoyl-sn-glycero-3-phosphatidylethanolamine (DMPE) was incorporated into the cerasomes to serve as the chelating agent for cupric ions. The intraparticle energy transfer from NR to Cu(2+) caused the fluorescence quenching of NR, showing the prospect of these cerasomes as a fluorescence "turn-off" sensor for the detection of trace copper ions.
authors.affiliation: State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, China. xiulidx@yahoo.com.cn
authors.forename: Xiuli
authors.initials: X
authors.lastname: Yue
authors.forename: Caixin
authors.initials: C
authors.lastname: Guo
authors.forename: Yuanmiao
authors.initials: Y
authors.lastname: Jing
authors.forename: Fang
authors.initials: F
authors.lastname: Ma
mesh_terms: D002516:Ceramics / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003300:Copper / Q000032:analysis* / Q000737:chemistry*; D008081:Liposomes / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010714:Phosphatidylethanolamines / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D008081:Liposomes; D010714:Phosphatidylethanolamines; D012822:Silicon Dioxide; D003300:Copper; C018525:1,2-dimyristoylphosphatidylethanolamine