Glass-ceramic (GC) materials have the formability advantages of glasses and opportunity for controlled crystallization functional ceramic phases. Here, we obtain GCs containing hard magnetic phase Sr-hexaferrite (SrFe12O19) from a borate glass. Ten compositions in B2O3-Fe2O3-SrO system were explored, varying B2O3 Sr/Fe ratio. Compositions forming glass on quenching, according to X-ray diffracti...

The structure determination of an integral membrane protein using synchrotron X-ray diffraction data collected at room temperature directly in vapour-diffusion crystallization plates (in situ) is demonstrated. Exposing the crystals in situ eliminates manual sample handling and, since it is performed at room temperature, removes the complication of cryoprotection and potential structural anomali...

For chemical reactions in liquid state, such as catalysis, understanding of dynamical changes is conducive to practical applications. Solvation of copper salts in aqueous solution has implications for life, the environment, and industry. In an ongoing research, the question arises that why the color of aqueous CuCl2 solution changes with solution concentration? In this work, we have developed a...

Non-isothermal laser-based powder bed fusion (LPBF) of polymers suggests the potential for significantly extending range materials applicable powder-based additive manufacturing polymers, relying on absence a material-specific processing window. To allow support-free at build chamber temperature 25 °C, applied strategies comprise combination fractal exposure and locally quasi-simultaneous disti...

We describe new phenomena of structural reorganization of carbon adsorbates as revealed by in situ atomic-resolution transmission electron microscopy (TEM) performed on specimens at extreme temperatures. In our investigations, a graphene sheet serves as both a quasi-transparent substrate for TEM and as an in situ heater. The melting of gold nanoislands deposited on the substrate surface is used...

An efficient protocol for post-functionalization of organo-imido polyoxometalates is developed via creating a remote tertiary “N” atom over the surface of organo-imido hexamolybdates and subsequently post-functionalizing it with the help of allyl or alkyl halides to afford stoichiometric, “in situ” crystalline products at moderate temperatures. The parent organo-imido product 2 and post-functio...

We describe new phenomena of structural reorganization of carbon adsorbates as revealed by in situ atomic-resolution transmission electron microscopy (TEM) performed on specimens at extreme temperatures. In our investigations, a graphene sheet serves as both a quasi-transparent substrate for TEM and as an in situ heater. The melting of gold nanoislands deposited on the substrate surface is used...

Crystallization is a key for ferroelectricity which collective behavior of microscopic electric dipoles. On the other hand, uncontrolled crystallization leads to uneven morphology and random crystal orientations, undermines application potential ferroelectric thin films. In this work, we introduce film fabrication method low-temperature physical vapor deposition followed by restrained crystalli...

Microfluidic Tools to Investigate Protein Crystallization A dissertation presented to the Faculty of the Graduate School of Arts and Sciences of Brandeis University, Waltham, Massachusetts by Michael Heymann There is no guarantee that a given protein has a crystalline phase, but even existence of an equilibrium crystalline phase is not sufficient for a crystal to form because the transformation...