title: Amphiphilic silane modified NaYF4:Yb,Er loaded with Eu(TTA)3(TPPO)2 nanoparticles and their multi-functions: dual mode temperature sensing and cell imaging.
abstract: Rare-earth upconversion nanophosphors (UCNPs) have become one of the most promising luminescent materials for bio-applications, but their use still meets some limitations by difficulties in obtaining biocompatible UCNPs. To address this problem, we have developed a simple and versatile strategy for converting hydrophobic UCNPs into hydrophilic ones by amphiphilic silane modification with ultrathin thickness at room temperature (RT). In this strategy, the coating layers can also afford the place for loading with Eu(TTA)3(TPPO)2 complex which displays down conversion luminescence (DCL). Due to the UC and DC properties, we achieved the dual mode physiological range temperature sensing and dual mode cell imaging. Such novel nanomaterials offer a new surface modification strategy for the NPs that are formed in the oil phase for bio-applications.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
authors.forename: Boting
authors.initials: B
authors.lastname: Chen
authors.forename: Biao
authors.initials: B
authors.lastname: Dong
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Shuang
authors.initials: S
authors.lastname: Zhang
authors.forename: Lin
authors.initials: L
authors.lastname: Xu
authors.forename: Wei
authors.initials: W
authors.lastname: Yu
authors.forename: Hongwei
authors.initials: H
authors.lastname: Song
mesh_terms: D002470:Cell Survival / Q000187:drug effects; D056831:Coordination Complexes / Q000737:chemistry / Q000633:toxicity; D004871:Erbium / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D006367:HeLa Cells; D006801:Humans; D053768:Metal Nanoparticles / Q000737:chemistry*; D018613:Microscopy, Confocal; D012821:Silanes / Q000737:chemistry*; D013696:Temperature; D015018:Ytterbium / Q000737:chemistry*; D015019:Yttrium / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D012821:Silanes; C525362:sodium yttriumtetrafluoride; D015019:Yttrium; D004871:Erbium; D015018:Ytterbium; D005459:Fluorides