Terbium complexes encapsulated in hierarchically organized hybrid MOF particles toward stable luminescence in aqueous media

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Yiquan Wang,Wei Zhou,Feng Chen,Kaiyao Sun,Jixi Zhang,Ezgi Özliseli,Jessica M. Rosenholm
Publiceringsår: 2018
Tidskrift: CrystEngComm
Volym: 20
Nummer: 30
Artikelns första sida, sidnummer: 4225
Artikelns sista sida, sidnummer: 4229


Abstrakt

To exert the respective advantages of lanthanide complexes and metal–organic frameworks (MOFs) in luminescence and encapsulation, hierarchically organized hybrid MOF particles were developed to meet the requirements of stable luminescence for applications in biological media. Anionic terbium (Tb) complexes sensitized by tridentate pyridine-tetrazolate (pytz) ligands (i.e. Tb(pytz)3) were encapsulated in zeolitic imidazolate framework-8 (ZIF-8) nanoparticles (~150 nm). TIF-1Zn (Zn(DMBIM)2) frameworks were then hybridized with ZIF-8 by the mediation of a hydrophobic ligand, i.e. DMBIM (5,6-dimethylbenzimidazole). A bio-inspired polymer, i.e. polydopamine, was utilized for imparting the particles with hydrophilicity and functionalization ability. An unprecedentedly high quantum yield (82.0%) and luminescence stability in PBS buffer was realized by the hierarchical structure.


Nyckelord

bioimaging, fluorescent imaging probes, Luminescence, Nanoparticles

Senast uppdaterad 2020-20-09 vid 06:16

Dela länk