The present status of a new epitaxial growth method, named molecular beam allotaxy (MBA), is reviewed. The method allows one to grow single-crystalline heterostructures in a new way; that is, the desired layer forms during annealing of a precipitate layer. The precipitates are embedded within a single-crystalline matrix, grown by molecular beam epitaxy. The key point is that the epitaxial growt...

Proteins exhibit a variety of dense phases ranging from gels, aggregates, and precipitates to crystalline phases and dense liquids. Although the structure of the crystalline phase is known in atomistic detail, little attention has been paid to noncrystalline protein dense phases, and in many cases the structures of these phases are assumed to be fully amorphous. In this work, we used small-angl...

The morphology of crystalline precipitates in a solid-state matrix is governed by complex but tractable energetic considerations driven largely by volume strain energy minimization and anisotropy of interfacial energies. Spherical precipitate morphologies are favored by isotropic systems, while anisotropic interfacial energies give energetic preference to certain crystallographically oriented i...

1. The reaction between crystalline horse serum albumin and homologous antibody in rabbit sera is quantitatively accounted for by expressions similar to those derived from the law of mass action for other immune precipitating systems. 2. The reaction of an azo dye prepared from crystalline serum albumin by coupling with diazotized R-salt-azo benzidine was also studied with homologous antibody a...

A new approach is described for the recovery of precious metals (PMs: Au, Pd and Ag) with >99% efficiency from aqueous solution utilising biogas produced during the aerobic growth of Klebsiella pneumoniae. Gold was recovered from electronic scrap leachate ( approximately 95%) by this method, with some selectivity against Cu. The recovered PM solids all contained metal and sulphur as determined ...

purpose: to characterize keratic precipitate (kp) morphology in different forms of uveitis. methods: one hundred and twenty nine eyes of 93 patients with different forms of uveitis underwent confocal scan and the morphology of kps were determined. differences in kp morphologies among different uveitic groups were evaluated.  results: age ranged from 14 to 67 years (mean: 32.5±11.2) and 58 cases...

Methods for the purification and crystallization of tetanal toxin are described. The methods consist of the multiphase fractionation system involving methanol as the organic precipitating agent under controlled conditions of pH, ionic strength, protein concentration, and temperature. Crystalline tetanal toxin has an electrophoretic mobility of 2.8 x 10(-5) in veronal buffer of 0.1 ionic strengt...

1. Rabbits were injected with the washed specific precipitate from Type II antipneumococcus horse serum. Antibody in the resulting antiserum was determined by the quantitative agglutinin method using various specific precipitates as antigens. 2. Suspensions of Types I and II antipneumococcus horse specific precipitates, as well as the specific precipitates derived from Type VIII Pn (anti-C port...

Monolithic bulk metallic glasses (BMGs) exhibit a unique combination of mechanical properties, such as high strength and large elasticity limits, but the lack of ductility is considered the main Achilles’ heel of BMG systems. To increase the competitiveness of BMGs vis-à-vis conventional structural materials, the problem of catastrophic failure via intense plastic strain localization (‘shear ba...

Atom Probe (AP) tomography is maturing into a routine method for the atomic resolution compositional analysis of metals, semiconductors and some polymers. This is often combined with a Transmission Electron Microscope (TEM) analysis of the same region of interest. The Focused Ion Beam (FIB) microscope has evolved as an essential tool for site and orientation specific sample preparation for such...