© 2020 Wiley Periodicals, Inc.Air-stable 2D materials are relatively inert, which makes their chemical modification difficult. In the case of MoS2, the semiconducting 2H-MoS2 is much less reactive than its metallic counterpart, 1T-MoS2. As a consequence, there are very few methods for the covalent modification of 2H-MoS2. An ideal method for the functionalization of 2H-MoS2 should be mild, without introduction of a large number of defects, and versatile, allowing for the decoration with as many different functional groups as possible. Herein, a comprehensive study on the covalent functionalization of 2H-MoS2 with maleimides is presented. The use of a base leads to the in situ formation of a succinimide polymer layer covalently connected to MoS2. In the absence of base, functionalization stops at the molecular monolayer. The protocol is mild (room temperature), fast (nearly complete in 1h), and very flexible (10 different maleimides tested). In practical terms, the procedures described here allow for the decoration of 2H-MoS2 with polymers or molecules, and with a wide range of functional groups for subsequent modification. Conceptually, the spurious formation of an organic polymer might be general to other methods of functionalization of 2D materials, where a large excess of molecular reagents is typically used. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Double perovskite structure (A 2 BB'O 6 ) oxides exhibit a breadth of multifunctional properties with a huge potential range of applications in fields as diverse as spintronics, magneto-optic devices or catalysis, and most of these applications require the use of thin films and heterostructures. Chemical solution deposition techniques are appearing as a very promising methodology to achieve epitaxial oxide thin films combining high performance with high throughput and low cost. In addition, physical properties of these materials are strongly dependent on the ordered arrangement of cations in the double perovskite structure. Thus, promoting spontaneous cationic ordering has become a very relevant issue. In this work, our recent achievements using polymer assisted deposition (PAD) of environmentally friendly, water-based solutions for the growth of epitaxial ferromagnetic insulating double perovskite La 2 CoMnO 6 and La 2 NiMnO 6 thin films on SrTiO 3 and LaAlO 3 single-crystal substrates are presented. We show that the particular crystallization and growth process conditions of PAD (very slow rate, close to thermodynamic equilibrium conditions) promote high crystallinity and quality of the films, as well as favors spontaneous B-site cationic ordering. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.The potential for coordination and H-transfer from Cp2MH2 (M=Zr, W) to gold(I) and gold(III) complexes was explored in a combined experimental and computational study. [(L)Au]+ cations react with Cp2WH2 giving [(L)Au(κ2-H2WCp2)]+ (L = IPr (1), cyclic (alkyl)-(amino)-carbene (2), or phosphines PPh3 (3) and Dalphos-Me (4; IPr=1,3-bis(di iso propylphenyl)imidazolylidene; Dalphos-Me = di(1-adamantyl)-2-(dimethylamino)phenyl-phosphine), while [Au(DMAP)2]+ (DMAP= p -dimethyl-amino-pyridine) affords the  C2-symmetric [Au(κ-H2WCp2)2]+ (5). The Dalphos complex 4 can be protonated to give the bicationic adduct 4H, showing Au(I)…H+ -N hydrogen bonding. The gold(III) Lewis acid [(C^N-CH)Au(C6F5)(OEt2)]+ binds Cp2WH2 to give a Au-H-W σ-complex. By contrast, the pincer species [(C^N^C)Au]+ adds Cp2WH2 by a purely dative W→Au bond, without Au···H interaction. The biphenyl-based chelate [(C^C)Au]+ forms [(C^C)Au(μ-H)2WCp2 ]+ , with two 2-electron-3-centre W-H…Au interactions and practically no Au-W donor acceptor contribution. In all these complexes strong but polarised W-H bonds are maintained, without H-transfer to gold. On the other hand, the reactions of Cp2ZrH2 with gold complexes led in all cases to rapid H-transfer and formation of gold hydrides. Relativistic DFT calculations were used to rationalize the striking reactivity and bonding differences in these heterobimetallic hydride complexes along with an analysis of their characteristic NMR parameters and UV-vis absorption properties. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Psilocybin, the principal indole alkaloid of Psilocybe mushrooms, is currently undergoing clinical trials as a medication against treatment-resistant depression and major depressive disorder. The psilocybin supply for pharmaceutical purposes is met by synthetic chemistry. We replaced the problematic phosphorylation step during synthesis by the mushroom kinase PsiK. This enzyme was biochemically characterized and used to produce one gram of psilocybin from psilocin within 20 minutes. We also describe a pilot-scale protocol for recombinant PsiK that yielded 150 mg enzyme in active and soluble form. Our work consolidates the simplicity of tryptamine chemistry with the specificity and selectivity of enzymatic catalysis and helps provide access to an important drug at potentially reasonable cost. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Mesenchymal stem cells (MSCs) are used in various clinical and preclinical models for immunomodulation. However, it remains unclear how the immunomodulatory effect of MSC is communicated. MSC-induced immunomodulation is known to be mediated through both MSC-secreted cytokines and direct cell-cell interactions. Recently, it has been demonstrated that metabolically inactive, heat-inactivated MSCs (HI-MSCs) have similar anti-inflammatory capacities in LPS-induced sepsis compared with viable MSC. To further investigate the immunomodulatory effects of MSC, we introduced MSC and HI-MSC in two animal models with different immunological causes. In the first model, allogeneic hearts were transplanted from C57BL/6 mice to BALB/c recipients. https://www.selleckchem.com/products/abr-238901.html MSC in combination with mycophenolate mofetil (MMF) significantly improved graft survival compared with MMF alone, whereas the application of HI-MSC had no effect on graft survival. We revealed that control MSC dose-dependently inhibited CD3+ and CD8+ T-cell proliferation in vitro, whereas HI-MSC had no effect.