Quantitative studies of the optical parameters surface layer formed during polishing quartz glass have been carried out. It is shown that mechanism formation when using methods mechanochemical and ion has much in common. In both cases, appearance a layer, which differs by high refractive index from corresponding bulk properties glass, associated with stress breaking Si-O-Si bridge bonds hydroly...

Boc protection group could be readily removed in a very mild mechanochemical conditions. In a short reaction time, ball milling of Boc-protected amines with p-toluenesulfonic acid in solvent-free conditions affords corresponding amine p-TsOH salts.

Lithiated polysilane was synthesized by the mechanochemical reaction of layered polysilane with metallic lithium. The resulting dark green powder formed a Si-Li bond on the surface and demonstrated electroconductivity.

An experimental technique for in situ and real-time monitoring of mechanochemical reactions in a shaker ball mill was recently described, which utilises highly penetrating X-ray radiation available at the ID15B beamline of the European Synchrotron Radiation Facility. Herein, we describe the first attempts to perform such reaction monitoring in a quantitative fashion, by introducing an internal ...

Thermodynamic equilibrium in multicomponent solids subject to mechanical stresses is a complex nonlinear problem whose exact solution requires extensive computations. A few decades ago, Larché and Cahn proposed a linearized solution of the mechanochemical equilibrium problem by introducing the concept of open system elastic coefficients [Acta Metall. 21, 1051 (1973)]. Using the Ni-Al solid solu...

Actins and myosins similar to the major proteins of muscle are the major molecular components of intricate mechanochemical systems that perform numerous vital motility and structural functions in all eukaryotic cells. In this article, after a brief summary of the morphological distribution and ultrastructure of actin, myosin, and interrelated proteins of nonmuscle cells, our present knowledge o...

Mechanochemistry makes the next move in advancing organometallic synthesis. In their Research Article (e202305775), Riina Aav, Dzmitry G. Kananovich et al. report a mechanochemical adaptation of Mg-mediated Barbier reaction, which overcomes limitations classic solvent-based approach. Mechanochemical activation enables rapid generation Grignard reagents situ, making process resistant to air and ...

Perchlorate (ClO4?) is widespread in the solar system having been detected on Earth, Mars, chondrite meteorites and lunar samples. On perchlorates expand potential for habitable conditions by lowering freezing point of liquid water formation brines. In future manned space exploration their presence poses a hazard to human health, however, it also represents opportunities as source oxygen fuel. ...