title: A novel Lu3+ fluorescent nano-chemosensor using new functionalized mesoporous structures.
abstract: A new Lu(3+) sensitive fluorescent chemosensor is designed using 8-hydroxyquinoline functionalized mesoporous silica with highly ordered structure (LUS-SPS-Q). The characterization of LUS-SPS-Q showed that the organized structure has been preserved after the post grafting procedure. The synthesized material showed a selective interaction with Lu(3+) ion, most probably due to the presence of the fluorophore moiety at its surface. The emission intensity of the Lu(3+)-bound mesoporous material increases with an increase in concentrations of Lu(3+) ion. Addition of other mono-, di-, trivalent ions resulted in insignificant change in the fluorescent intensity. The enhancement of fluorescence is attributed to the strong covalent binding of Lu(3+) ion. The linear response range of Lu(3+) chemo-sensor was from 1.6×10(-7) to 1.0×10(-5) mol L(-1). The Limit of detection obtained was 8.2×10(-8) mol L(-1) and the pH range which the proposed chemo-sensor can be applied was 3.3-8.3.
authors.affiliation: Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran. smhosseini@khayam.ut.ac.ir
authors.forename: Morteza
authors.initials: M
authors.lastname: Hosseini
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ganjali
authors.forename: Zahra
authors.initials: Z
authors.lastname: Rafiei-Sarmazdeh
authors.forename: Farnoush
authors.initials: F
authors.lastname: Faridbod
authors.forename: Hassan
authors.initials: H
authors.lastname: Goldooz
authors.forename: Alireza
authors.initials: A
authors.lastname: Badiei
authors.forename: Parviz
authors.initials: P
authors.lastname: Nourozi
authors.forename: Ghodsi Mohammadi
authors.initials: GM
authors.lastname: Ziarani