Superoxide dismutase 2 deficiency in mesenchymal stromal cells induces sympathetic denervation and functional impairment of brown adipose tissue.

Brown adipose tissue (BAT) is an energy-consuming organ, and its functional dysregulation contributes to the development of metabolic diseases and obesity. BAT function is regulated by the sympathetic nervous system but declines with age, which is partly caused by reduced sympathetic nerve fibers innervating BAT. Thus far, the role of mesenchymal stromal/stem cells in age-related BAT dysfunction remains unknown.

High red luminescence intensity under sunlight exposure of a PMMA polymer doped with a tetrakis Eu β-diketonate complex containing a benzimidazolium counterion.

New tetrakis Eu and Gd β-diketonate complexes containing benzimidazolium (Bzim) as the counterion were synthesized by the one-pot method. The Bzim[Eu(tta)]·HO complex was further incorporated into a poly(methyl methacrylate) matrix (PMMA) at 1, 5, and 10% (w/w), which revealed highly desirable photonic features. The Eu and Gd complexes were characterized by elemental and thermal analyses, in addition to ESI-MS spectrometry, FTIR, and Raman spectroscopy.

Kapok fibers modified with cationic surfactants: Structural insights and efficient removal of Cr(VI) and bisphenol A.

In this study, kapok fiber (KF) a hollow and hydrophobic fiber, was modified with cetyltrimethylammonium bromide (CTAB) or cetylpyridinium chloride (CPC), rendering adsorbed amount of ∼0.75 × 10 mol/g. Small-angle X-ray scattering (SAXS) measurements of dry KF/CTAB and KF/CPC evidenced a periodic distance of ∼2.