Two new lanthanide-based room temperature ionic liquids [Bmim]­[Ln­(NO3)4] (Bmim = 1-butyl-3-methylimidazolium; Ln = Dy, Sm) were synthesized and characterized. They show good luminescent properties and could be used as good soft luminescent materials. These kinds of hydrostable and eco-friendly ionic liquids were first used to explore the sensing behavior for Fe­(III) ions, exhibit a highly specific recognition, and are not interfered by the following common mental ions: Ca­(II), Al­(III), Zn­(II), Cu­(II), Pb­(II), Hg­(II), Cd­(II), Co­(II), Fe­(II), Ni­(II), and Cr­(III). These lanthanide-based ionic liquids with strong luminescence have an outstanding application prospect in “green” fluorescent sensor and can be widely used in actual detection of Fe­(III) in aqueous solutions.

The ΔglH°m for [Cnmim][OAc] (n = 4, 6) were measured using isothermogravimetrical approach and explored by molecular dynamics simulations. The δμ can be estimated easily, and good agreement with experiences.

Ionic liquids (ILs) have attracted remarkable attention as a new class of novel reaction medium and soft functional materials in the framework of Green Chemistry, and the polarity of ionic liquids is one of the primary concerns in the scientific community. Here, we introduce a new and simple scale of polarity, δ μ , for ILs. Initially, two kinds of representative ionic liquids, {1-alkyl-3-methyllimidazolium acetate}) are prepared and confirmed by 1 H NMR spectroscopy and 13 C NMR spectroscopy, respectively. Furthermore, a spectroscopic method based on solvatochromic probes is used to obtain the polarity of room temperature ILs (RTILs). In this work we mainly introduce that the scale of solvent polarity, E T (30) values, is determined by means of Reichardt's dye (30), and π* values are determined by N,N-diethyl-4-nitroaniline. Simultaneously, in terms of the values of enthalpy of vaporization, δ μ values of these ILs are predicted. Moreover, the trend of δ μ values of the ionic liquids with the different alkyl chains are the same as the E T (30) and π* values. In addition, the new scale of polarities δ μ of some molecular liquids are also predicted, and the results are in good agreement with relative permittivity, ε r .

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As the main constituent of the largest cellular ribonucleoprotein complex, the evolutionary highly conserved major vault protein (MVP) has been proposed play vital roles in the regeneration of multiple organs. In current study, we use a mvp knockout zebrafish line recently generated to characterize the function of MVP during organ regeneration. We found the regenerative capacity of heart, spinal cord and fin is preserved in mvp knockout zebrafish. Further experiments demonstrated in injured mvp knockout zebrafish, the cell death is enhanced while the transcriptome landscape is largely unchanged. These data showed MVP acts as an anti-apoptotic factor at early phase of injury response while plays a dispensable role in the regenerative programs in zebrafish.