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Metal-organic frameworks (MOFs) are compounds consisting of metal ions or clusters coordinated to organic ligands to form one-, two-, or three-dimensional structures. They are a subclass of coordination polymers (CPs), with the special feature that they are often porous. The organic ligands are sometimes referred to as second building structs. The new porous materials have paid great attention because of the variety of advantages such as tunable components, structural diversity, high loading performance and favorable biodegradability. In this review, we highlighted the recent progress on the drug delivery application of MOFs, especially emphasizing the application of pH-responsive delivery as well as magnetic-guided drug delivery systems (DDSs). Subsequently, the applications of MOFs in magnetic resonance imaging (MRI), optical imaging (OI), X-ray computed tomography (CT) imaging and multimodality imaging will be discussed. Finally, we will provide an overview for the photodynamic therapy and the toxicity feature of MOFs.

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With XPS characterization to determine the type of functional group, elucidates the hydro peroxide structure degradation mechanism of PVC.

An uncommon microporous MOF 1 used as fluorescent chemosensor for NACs and as photocatalyst.

By using the ligand-truncation strategy, a microporous metal-organic framework (1) with high surface area was designedly synthesized. MOF 1 shows a new (4, 4)-connected net with a Schläfli symbol of (4.6)(4.6.8)(4.8.10) and exhibits a high H capture capacity (193 cm g at 1 atm and 77 K) and selectivities for CO over N and CH at low pressure.

Abstract:We herein selected a 3D metal-organic framework decorated with carboxylate groups as an adsorbent to remove the pharmaceutical molecules of diclofenac sodium and chlorpromazine hydrochloride from water. The experiment aimed at exploring the effect factors of initial concentration, equilibrium time, temperature, pH and adsorbent dosage on the adsorption process. The adsorption uptake rate of the diclofenac sodium is much higher than that of the chlorpromazine hydrochloride. This paper presents the high adsorption capacity of diclofenac sodium, in which porous MOFs are used for the removal of drug contaminants from water. According to linear fitting with adsorption isotherm equation and kinetic equations, diclofenac sodium conforms to the Langmuir model and pseudo-first-order kinetic equation, while chlorpromazine hydrochloride accords with the Temkin model and pseudo-second-order kinetic equation. The results of the study indicate that the title compound could be a promising hybrid material for removing diclofenac sodium and chlorpromazine hydrochloride from wastewater.

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