The glucose oxidation reaction (GOR) relies on noble metals (such as Au and Ag) and metal oxides (such as CuO, RuO 2 , and IrO 2 ) as catalysts in a general way. However, these metal-based candidate materials often suffer from a variety of defects, including high cost, complexity of their synthesis method, and damage to the environment. Here, we synthesized ultrathin twodimensional (2D) nanosheets (about 2.041 nm in thickness) that have a large surface area and good electrocatalytic properties for GOR. The destination product was prepared using a one-step solvothermal process involving Co(NO 3 ) 2 • 6H 2 O and p-phthalic acid synthesized in the presence of DMF/C 2 H 5 OH solution. The as-synthesized ultrathin 2D nanosheet Co-MOFs exhibited an electrocatalytic performance for the glucose that was better than that for the shelllike multilayer assemblies Co-MOFs in the alkaline electrolyte, including a higher stability, higher sensitivity, and better activity.

Artesunate is dissolved in an aqueous solution of several organic solvents (methanol, ethanol, isopropanol, and PG), and the mole fraction of artesunate is determined by the static method. When the system reaches equilibrium, the range of system temperature is 278.15−318.15 K and the pressure environment is 101.1 kPa. When the temperature is constant, the equilibrium mole fraction of artesunate is proportional to the mass percentage of organic solvents, and the relationship between artesunate solubility and temperature is the same as before under certain conditions of the organic solvent component. When the external conditions are the same, artesunate is more likely to dissolve in the ethanol + water mixture than in several other systems. Besides, three classical mixed solvent thermodynamic equationsJouyban−Acree model, van't Hoff−Jouyban−Acree model, and Apelblat−Jouyban−Acree modelare applied to calculate the equilibrium mole fraction of artesunate. The maximum value of average relative deviations (ARD) obtained during the calculation is 0.83%. The experimentally measured data on artesunate has different general meanings for the expansion of application and production in the pharmaceutical field and provides theoretical data for its industrial production.

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This work is to research the influence of different solvent properties and the composition on the solubility of iopromide. The solubility values of iopromide in some pure and binary solvent mixtures have been measured from T = 273.15 to 318.15 K. The result showed that the solubility obtained a maximum value in mole fraction (x = 55.426 × 10–4 at T = 318.15 K) in pure N,N-dimethylformamide (DMF) and the minimum data (x = 9.9 × 10–6 at T = 273.15 K) in neat toluene. The values in pure solvents obeyed the following order: DMF > methanol > ethanol > isopropyl alcohol > acetone > ethyl acetate > toluene. In mixed solvents, it was increased with increasing mass fraction of DMF at a given temperature. Moreover, the obtained solubility data in pure solvents were correlated with the modified Apelblat equation, and three cosolvent models (the Jouyban–Acree model, the Apelblat–Jouyban–Acree model, and CNIBS/R-K model) were applied to correlate solubility in the binary mixture. The maximum values of relative average deviation for back-calculation of iopromide in studied mixtures varied from 0.08 to 4.52%. Correlation coefficient values all approximately equal 1, which indicates that these models were very consistent with the experimental values. Furthermore, the results of powder X-ray diffraction indicate that there is no polymorph transformation or solvate formation during the solubility determination.

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