Photoluminescent metal–organic frameworks and their application for sensing biomolecules

Abstract

This review focuses on the recent development of luminescent MOFs with synthetic approaches and their application in sensing biomolecules.

Waste PET as a Reactant for Lanthanide MOF Synthesis and Application in Sensing of Picric Acid

“…Especially, luminescent lanthanide MOFs have received intense interest owing to their large Stokes shifts, high color purity, and long luminescent lifetime [5][6][7]. The combination of inherent luminescence properties, together with the porosity of lanthanide MOFs, is suitable for the sensing of chemicals [8][9][10][11][12][13][14] and temperatures [15,16].…”

NiFe2O4@SiO2@Cu3(BTC)2 nanocomposite as a magnetic metal–organic framework

“…The first one is attributed to the near bandgap emission (NBE) [ 2 ] and originated from either ligand‐to‐metal charge transfer (LMCT), or metal‐to‐ligand charge transfer (MLCT) ways. [ 41 ] The second peak pointed to visible deep‐level defect emission. [ 42 ] When NiFe 2 O 4 @SiO2 was added into the MOF system, the PL intensity at 340 nm remarkably decreased from 1000 to 390 candela; however, the change caused a similar decreasing at 678 nm but not that much.…”

Strain-based chemical sensing using metal–organic framework nanoparticles

“…[5][6][7][8] The modular nature of MOFs allows them to be tailored with highly specic host-guest interactions to adsorb small molecules with higher uptake and selectivity than conventional materials such as polymers, zeolites and porous carbons. 9,10 Luminescence and other optical transduction modes are most widely reported in the literature of MOF-based sensing; 11 however, for practical usage other modes that integrate more easily with existing electronics are more viable. 6,12 Whilst there have been a handful of encouraging reports of electronically-responsive MOFs, [13][14][15][16][17] MOFs can be ideal candidates for strain-induced chemical detection because of the deformations of coordination space within their crystal structures caused by host-guest interactions and their increased exibility compared to conventional inorganic materials.…”