title: Hydrothermal treatment of grass: a low-cost, green route to nitrogen-doped, carbon-rich, photoluminescent polymer nanodots as an effective fluorescent sensing platform for label-free detection of Cu(II) ions.
abstract: Increasing reaction temperature produces photoluminescent polymer nanodots (PPNDs) with decreased particle size and increased quantum yield. Such PPNDs are used as an effective fluorescent sensing platform for label-free sensitive and selective detection of Cu(II) ions with a detection limit as low as 1 nM. This method is successfully applied to determine Cu(2+)  in real water samples.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Changchun, Jilin, China.
authors.forename: Sen
authors.initials: S
authors.lastname: Liu
authors.forename: Jingqi
authors.initials: J
authors.lastname: Tian
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Yingwei
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xiaoyun
authors.initials: X
authors.lastname: Qin
authors.forename: Yonglan
authors.initials: Y
authors.lastname: Luo
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Abdulrahman O
authors.initials: AO
authors.lastname: Al-Youbi
authors.forename: Xuping
authors.initials: X
authors.lastname: Sun
mesh_terms: D002244:Carbon / Q000737:chemistry; D003300:Copper / Q000032:analysis* / Q000737:chemistry; D055772:Green Chemistry Technology / Q000191:economics* / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry; D009584:Nitrogen / Q000737:chemistry; D006109:Poaceae / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D013050:Spectrometry, Fluorescence; D013696:Temperature; D014867:Water / Q000737:chemistry*
chemical_list: D011108:Polymers; D014867:Water; D002244:Carbon; D003300:Copper; D009584:Nitrogen