Abstract This paper describes a method for aligning stiff, high-aspect-ratio microcrystals over macro-length scales using polymer fiber drawing process. A composite preform was constructed with an interfacial, liquid shell layer of grapeseed oil suspending ytterbium-doped potassium lutetium fluoride (30% Yb:K 2 LuF 5 , KLF) between adjacent cylindrical surfaces acrylic (polymethyl methacrylate,...

The (001) plate-like BaTiO3 piezoelectric micromaterials are synthesized by topochemical microcrystal conversion technique. plates with a length of 2~10 μm and thickness 0.5~1.3 obtained. dependence morphology on synthesis conditions is discussed in detail. crystal symmetry multiscale domain structures systematically investigated various characterizations. X-ray diffraction (XRD) Raman spectra ...

Non-contact interaction between two parallel flat surfaces is a central paradigm in sciences. This situation is the starting point for a wealth of different models: the capacitor description in electrostatics, hydrodynamic flow, thermal exchange, the Casimir force, direct contact study, third body confinement such as liquids or films of soft condensed matter. The control of parallelism is so de...

Transition of bacteria to cell wall deficient L-forms in response to stress factors has been assumed as a potential mechanism for survival of microbes under unfavorable conditions. In this article, we provide evidence of paradoxal survival through L-form conversion of E. coli high cell density population after lethal treatments (boiling or autoclaving). Light and transmission electron microscop...