title: Tuning sub-10 nm single-phase NaMnF3 nanocrystals as ultrasensitive hosts for pure intense fluorescence and excellent T1 magnetic resonance imaging.
abstract: We report ultrasensitive sub-10 nm NaMnF(3) nanocrystals codoped with Yb(3+), Er(3+)/Tm(3+) ions, and their intense pure red and near-infrared upconversion emissions in the presence of Mn(2+). The nanocrystals showed excellent T(1) contrast in 7 T MRI, implying their potential as single-phase contrast agents for fluorescent deep tissue and MR imaging.
authors.affiliation: School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jing Dong
authors.initials: JD
authors.lastname: Lin
authors.forename: Vimalan
authors.initials: V
authors.lastname: Vijayaragavan
authors.forename: Kishore K
authors.initials: KK
authors.lastname: Bhakoo
authors.forename: Timothy Thatt Yang
authors.initials: TT
authors.lastname: Tan