Impact of nanosizing a host matrix based on a metal–organic framework on solid-state fluorescence emission and energy transfer

Abstract

We demonstrate that the nanosize effect appears to affect the properties of dye molecules encapsulated in the pores of a metal–organic framework (dye@MOF). The emissive properties of the nanosized dye@MOF...

Thermal crystal phase transition in zeolitic imidazolate frameworks induced by nanosizing the crystal

“…Typically, the nanoscale size of ZIF-8 crystals can be controlled by ligand concentration, reaction temperature or the presence of a modulating ligand. [20][21][22] Here, we successfully synthesized ZIF-8 crystals in a micrometre-to-nanometre size range by simply modifying a literature method (Fig. 1a, see ESI †).…”

Direct observation of crystal degradation behaviour in porous crystals under low-dose electron diffraction conditions

“…Nanosized MOF crystals were prepared to maintain high crystallinity by previously reported synthetic procedures. 20,21 According to this method, 30 nm-sized ZIF-8 nanocrystals, which consist of a Zinc (II) ion and 2-methylimidazolate (2-MIm), were prepared using an appropriate combination of reaction temperature/ reaction solvent/additives (Fig. 1a).…”

Facile supramolecular strategy to construct solid fluorophore@metal–organic framework composites

“…55 Based on these considerations, we report on a model fluorescent compound FMe520 (Figure 1) and investigate the possibility of invoking supramolecular events to improve on the photophysical properties of this hydrophobic species. This is achieved by encapsulating FMe520 into the popular zinc 2-methylimidazolate Zn(MeIm) 2 (ZIF-8) [56][57][58][59][60][61] as the host MOF. 62,63 ZIFs are a common choice for the design of molecular (e.g., dyes or drugs) delivery systems, due to their biocompatibility and enhanced stability in aqueous or physiological conditions that facilitates cellular uptake while avoiding premature content release.…”

“…1) and investigate the possibility of invoking supramolecular events to improve on the photophysical properties of this hydrophobic species. This is achieved by encapsulating FMe520 into the popular zinc 2-methylimidazolate Zn(MeIm) 2 (ZIF-8) 56–61 as the host MOF. 62,63 ZIFs are a common choice for the design of molecular ( e.g.…”