Catalytic oxygen evolution from hydrogen peroxide by -[Co(en)Cl]@InBTB metal-organic framework catalytic system.

The diethylammonium counter-cations of the [EtNH][In(BTB)] metal-organic framework (InBTB MOF, BTB = 1,3,5-benzenetribenzoate) with an anionic framework can be effectively exchanged with cationic -[Co(en)Cl] complex ions through a simple cation-exchange process. The heterogenized -[Co(en)Cl]-encapsulated InBTB MOF (-[Co(en)Cl]@InBTB) catalytic system maintained the activity of the captured -[Co(en)Cl] complex ion for hydrogen peroxide decomposition in aqueous solution under mild reaction conditions. The captured -[Co(en)Cl] complex also exhibited - isomerization to produce either -[Co(en)Cl]@InBTB or -[Co(en)(HO)Cl]@InBTB based on IR spectroscopic investigation.

Photophysical Properties and Heterogeneous Photoredox Catalytic Activities of Ru(bpy) @InBTB Metal-Organic Framework (MOF).

Metal-organic frameworks (MOFs) with negatively charged frameworks are suitable for selectively encapsulating cationic guest ions via a cation-exchange process. Encapsulating photoactive [RuL ] polypyridine complexes into the preorganized mesoscale channels of a MOF is a good method for stabilizing the excited states of the complexes. Three new RuL @InBTB MOFs were prepared by encapsulating cationic [Ru(bpy) ] (bpy=2,2'-bipyridine), [Ru(phen) ] (phen=1,10-phenanthroline), and [Ru(bpz) ] (bpz=2,2'-bipyrazine) into the mesopores of a three-dimensional (3D) InBTB MOF (H BTB=1,3,5-benzenetribenzoic acid).

Photophysical properties of cationic dyes captured in the mesoscale channels of micron-sized metal-organic framework crystals.

The optical properties of dye molecules in confined spaces can differ from the solution phase due to confinement effects. Pre-organized mesoscale channels of metal-organic frameworks (MOFs) are very suited for hosting various dyes, and the robust frameworks often render the encapsulated dyes with certain preferential geometries, which are different from those found in solution. Furthermore, pre-organized open channels can efficiently guide the uniform and unique spatial distribution of dye molecules in a controlled manner, which are otherwise difficult to achieve.

InS nanoparticle-embedded and sulfur and nitrogen co-doped microporous carbons derived from In(tdc) metal-organic framework.

Indium sulfide nanoparticle (NP)-embedded microporous carbons co-doped with S- and N-dopants are easily prepared by a direct carbonization of the as-prepared In(iii)-based metal-organic framework (In-MOF), [EtNH][In(tdc)]·DEF, containing ditopic S-containing 2,5-thiophenedicarboxylate (tdc) bridging linkers as a potential source of S-dopant. The charge on the anionic framework of [In(tdc)] is balanced by EtNH, which is also a potential N-dopant. Simultaneous embedding of In-based NPs, S-, and N-co-doping is achieved in a simple single step carbonization of In-MOF.

Performance of the BacT Alert 3D System Versus Solid Media for Recovery and Drug Susceptibility Testing of in a Tertiary Hospital in Korea.

Background: Tuberculosis (TB) is a major health problem, and accurate and rapid diagnosis of multidrug-resistant (MDR) and extended drug-resistant (XDR) TB is important for appropriate treatment. In this study, performances of solid and liquid culture methods were compared with respect to MDR- and XDR-TB isolate recovery and drug susceptibility testing.

Methods: Sputum specimens from 304 patients were stained with Ziehl-Neelsen method.